Polyacrylamide, PAM, Water Treatment manufacturer / supplier in China, offering Mining Flatation Anionic Polyacrylamide,PAC -S for Drinking Water and Wastewater Treatment,Polyaluminium Chloride - 01 and so on.
Welcome to consult mining flatation anionic polyacrylamide price with Shandong Tongli Chemical Co.,Ltd, which is one of the leading mining flatation anionic polyacrylamide suppliers in China and also a productive mining flatation anionic polyacrylamide factory.
Package:in 25 Kg PP Bag Lined with PE Bag or Kraft bag
ANIONIC POLYACRYLAMIDE Anionic polymer flocculant is mainly used for the treatment of solid minerals in the neutral suspension.It is used to improve the removal effect of the suspended solids,COD and phosphate in the urban and industrial waste-water treatment.In the drinking water and wastewater treatment,it is used in the surface water clarification,washing waste water clarification and filtrate adjustment process.In the mining,used for the clarification of coal washing water,flotation tailings of fluorite and barite,potash thermal solution,flotation processing.It is also used in coal filtration,concentrate thickening and filtration,tailings(slag) Dehydration,as well as the clarification of original brine salt processing and sludge dewatering and treatment of phosphate mine recycled water and so on.In the steel and metal manufacturing industries,it is used for the purifrification of open hearth furnace gas washing water,clarification of powder metallurgy plants and acid plant wastewater,purfication of electrolyte,and clarification of electroplating effluent wastewater. Standard:GB17514-2008 Specification:
Packing:in 25kg woven bag lined with PE bag
Hot Tags: mining flatation anionic polyacrylamide China, suppliers, factory, price


the continued extraction of natural resources
Mining is required to obtain any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory. It started to emerge on an industrial scale in the 19th century as the extraction and processing of raw materials developed much further than it had in preindustrial areas. The conventional wisdom suggests that for countries richly endowed with natural resources, extraction – for domestic use but in particular for export – is an integral part of the process of economic development. Mining accidents continue worldwide, including accidents causing dozens of fatalities at a time such as the 2007 Ulyanovskaya Mine disaster in Russia, the 2009 Heilongjiang mine explosion in China, and the 2010 Upper Big Branch Mine disaster in the United States. Natural resource extraction causes great environmental disruption What is a natural resource? Natural resources abundance is linked in many of these analyses to poor economic growth and governance, ... but is inscribed in the long succession of extraction of ‘resources’ bringing together networks of local elites, transborder commercial agents, and global markets, to export slaves, rubber, timber, ... many dealers and customers will continue participating in the murky business of gems … The operation of the mine to recover the ore begins and continues as long as the company operating the mine finds it economical to do so. Watering down in coal mines also helps to keep dust levels down: by spraying the machine with water and filtering the dust-laden water with a scrubber fan, miners can successfully trap the dust. • During the 20th century, energy consumption rapidly increased. The presence of heavy equipment in confined spaces also poses a risk to miners. Sub-surface mining can be classified by the type of access shafts used, the extraction method or the technique used to reach the mineral deposit. Standard economics is in general much more optimistic than ecological economics, usually showing a great deal of confidence in the ability of prices and market processes to steer the behavioural responses of producers and consumers. These codes and regulations all require the common steps of environmental impact assessment, development of environmental management plans, mine closure planning (which must be done before the start of mining operations), and environmental monitoring during operation and after closure. Roof bolters are among the loudest machines, but auger miners, bulldozers, continuous mining machines, front end loaders, and shuttle cars and trucks are also among those machines most responsible for excessive noise in mine work. Since mining entails removing dirt and rock from its natural location, thereby creating large empty pits, rooms, and tunnels, cave-ins as well as ground and rock falls are a major concern within mines. The above explained exchange of domestic extraction by imported materials does also affect the countries’ eco-efficiency, expressed by the material intensity indicator (domestic extraction devided by GDP, Figure 4), reflecting economic output per unit of domestic natural resource extraction. Humans today extract and use around 50% more natural resources than only 30 years ago, at about 60 billion tonnes of raw materials a year. Some even link it to environmental conflicts. In addition to all these resources, there is also an extensive potential for the generation of hydropower. Some mining, including much of the rare earth elements and uranium mining, is done by less-common methods, such as in-situ leaching: this technique involves digging neither at the surface nor underground. Other minerals found in abundance are salt and potash, … Targets are divided into two general categories of materials: placer deposits, consisting of valuable minerals contained within river gravels, beach sands, and other unconsolidated materials; and lode deposits, where valuable minerals are found in veins, in layers, or in mineral grains generally distributed throughout a mass of actual rock. Open-pit mines are used when deposits of commercially useful minerals or rocks are found near the surface; that is, where the overburden (surface material covering the valuable deposit) is relatively thin or the material of interest is structurally unsuitable for tunneling (as would be the case for sand, cinder, and gravel). http://en.wikipedia.org/wiki/Open-pit_mining. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final reclamation of the land after the mine is closed. Waste rock is piled up at the surface, near the edge of the open pit. A haul road is usually situated at the side of the pit, forming a ramp up which trucks can drive, carrying ore and waste rock. Only minor shaking or washing may be necessary to disaggregate (unclump) the sands or gravels before processing. Ralph De Haas, Steven Poelhekke 22 September 2016. However, the sustainable extraction of renewable resources such as wood or fish is possible if related to a careful understanding of reproduction and growth rates. This identifies, early on, whether further investment in estimation and engineering studies is warranted and identifies key risks and areas for further work. The extraction and processing of natural resources is often very intensive in the use of materials, energy, water and land. What is natural resource consumption? 12 March 2019: The ‘Global Resources Outlook 2019,’ a major global report on the status and trends of natural resource use and management, was released during the fourth session of the UN Environment Assembly (UNEA-4). This means that as the economy grows over time, energy use will follow. In this context, soil erosion, deforestation, enhanced global warming and loss of biodiversity are regarded as urgent problems. Figure 2. Gold is generally extracted in open-pit mines at 1 to 2 ppm (parts per million) but in certain cases, 0.75 ppm gold is economical. Logging is one example of resource extraction. But extracting geothermal energy affects the geothermal features and the surrounding environment. Both types of ore deposit, placer or lode, are mined by both surface and underground methods. This includes all valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. Extractivism generally refers to an economic model centred on the large-scale removal (or “extraction”) of natural resources for the purposes of exporting raw materials. Online course on ecological economics: http://www.ejolt.org/2013/10/online-course-ecological-economics-and-activism/, See the EJOLT flickr account: By age 50, nearly 90% of U.S. coal miners have some hearing loss, compared to only 10% among workers not exposed to loud noises. The primary disadvantage is extraction - there is virtually no way to extract a natural resource without doing major damage to the environment be it clearcutting a forest, digging out a mine, or over harvesting fish. a. This estimation is used to conduct a pre-feasibility study to determine the theoretical economics of the ore deposit. To gain access to the mineral deposit within an area it is often necessary to mine through or remove waste material which is not of immediate interest to the miner. Of all of these categories, oil and gas extraction remains one of the largest in terms of its global economic importance. Describe the processes involved in mining. Much of the devastation of our globe's natural resources traces its origins to early colonialism. Together, these resources provide the ecosystem services that provide better quality to human life. One such product from nature is the dye. They will not pollute the environment. Frictional heat and sparks generated by mining equipment can ignite both methane gas and coal dust. Some minerals, such as copper minerals and uranium oxide, require acid or carbonate solutions to dissolve. The mine buildings and processing plants are built, and any necessary equipment is obtained. They have for instance shown that the extraction of natural resources is associated with the transformation of enormous amounts of energy, both in the extraction process itself and in subsequent processes of concentration, smelting, filtering and refining. This includes oil and gas extraction, mining, fishing and forestry. Coal dust explosions can also begin independently of methane gas explosions. To improve the safety of mine workers, modern mines use automation and remote operation including, for example, such equipment as automated loaders and remotely operated rockbreakers. Extraction and Technology Oil and natural gas is extracted from rock deep within the earth using a drilling method. The walls are stepped. Nickel, generally as laterite, is extracted via open-pit down to 0.2%. Waste dumps are contoured to flatten them out, to further stabilise them. Once all the ore that the mine can produce profitably is recovered, reclamation begins to make the land used by the mine suitable for future use. Major Natural Resources In Ethiopia. This can range in scale from the traditional use of preindustrial societies to global industry. Additionally, further regulation is being requested for more gas detection as newer technology such as nanotechnology is introduced. These activities therefore often entail environmental problems, such as the destruction of fertile land, water shortages or toxic pollution. Modern techniques for timbering and bracing walls and ceilings within sub-surface mines have reduced the number of fatalities due to cave-ins, but ground falls continue to represent up to 50% of mining fatalities. Extreme examples of pollution from mining activities include coal fires, which can last for years or even decades, producing massive amounts of environmental damage. This depends on how weathered the rocks are, and the type of rock, and also how many structural weaknesses occur within the rocks, such as a faults, shears, joints orfoliations. Mine Safety and Health Administration requires that groups of miners in the United States carry gas detection equipment that can detect common gases, such as CO, O2, H2S, CH4, as well as calculate % Lower Explosive Limit. Mining companies in most countries are required to follow stringent environmental and rehabilitation codes in order to minimize environmental impact and avoid impacting human health. In standard (neoclassical) economics, it was believed that if resources were scarce and if market participants knew they were scarce, then resource prices would rise and alternative resources would become profitable. These ponds are secured by impoundments (dams or embankment dams). Learning Objective. Natural resource economics examines how society can more efficiently use its scarce natural resources, both non-renewable resources, such as minerals and fossil fuels, and renewable resources, such as fisheries and forests. Ecological economists directly link economic growth to the increased extraction of natural resources (renewable or non-renewable). In some cases, additional forest logging is done in the vicinity of mines to create space for the storage of the created debris and soil. High temperatures and humidity may result in heat-related illnesses, including heat stroke, which can be fatal. Processing of ore from a lode mine, whether it is a surface or subsurface mine, requires that the rock ore be crushed and pulverized before extraction of the valuable minerals begins. The extraction and consumption of natural resources disrupts the environment and creates pollution.Reducing the use of natural resources, such as fossil fuels and wood products, will protect human and environmental health. Rock dusts, including coal dust and silicon dust, can cause long-term lung problems including silicosis, asbestosis, and pneumoconiosis (also known as miners lung or black lungdisease). The inclined section of the wall is known as the batter, and the flat part of the step is known as the bench or berm. The extraction of natural … The result is that metal mining activities are expanding and more and more of the world’s metal stocks are above ground in use rather than below ground as unused reserves. The US mining industry is also large, but it is dominated by the coal and other nonmetal minerals (e.g., rock and sand), and various regulations have worked to reduce the significance of mining in the United States. d. The extraction of target minerals by this technique requires that they be soluble, e.g., potash, potassium chloride, sodium chloride, sodium sulfate, which dissolve in water. The extraction and processing of natural resources now accounts for more than 90 percent of global biodiversity loss and water stress impacts, and approximately half of global greenhouse gas emissions, a flagship UN report concludes. As the forerunner of NRCan, the GSC laid the groundwork for the success of our natural resources sectors. Group of answer choices. How to Reduce the Use of Natural Resources. Cases such as these often lead to high-profile rescue efforts, such as when 33 Chilean miners were trapped deep underground for 69 days in 2010. • Oxygen as a part of carbon dioxide, used for the growth of plants (in turn are used by man). Natural resource revenues have also been linked to slow economic growth rates, inequality, and poverty. 3.1 Introduction. Civil engineering design parameters are used in the design of the waste dumps, and special conditions apply to high-rainfall areas and to seismically active areas. A desolate, dry Earth is not a fun place to live. Hotelling (1931) developed an influential theory of depletion of oil or mineral deposits in which he described optimal non-renewable resource extraction. These are oil and gas extraction, coal mining, metal ore mining, nonmetallic mineral mining and quarrying, and mining support activities. It’s good to come across a blog every once in a while that isn’t the same out of date rehashed information. Geometallurgy combines the geologic sciences with extractive metallurgy and mining. Finally, landfill mining involves sites where landfills are excavated and processed. Safety has long been a concern as well, and modern practices have improved safety in mines significantly. The cost of a natural resource (less expected residual value) is divided by the estimated units in the resource deposit; the resulting amount is depletion per unit. If not done in a sustainable manner, logging extracts trees and their removal causes other changes that can result in soil and nutrient removal from the logged area. Whatever euphemisms we might use for extraction of non-renewable natural resources, the fact remains that it is a form of amputation. Often more waste than ore is mined during the life of a mine, depending on the nature and location of the ore body. There are no long term studies on the success of these covers due to the relatively short time in which large scale open pit mining has existed. This basic observation is undeniable. Just doing a little bit, can make a vast difference, and help us save some of these wonderful natural resources … To live comfortably in the coming years, conservation of natural resources is extremely essential. Safety has long been a concern in the mining business especially in sub-surface mining. Landscape deeply scarred by an open cut coal mine in Hunter Valley, Australia.Max Phillips / Flickr This is pumped to a tailings dam or settling pond, where the water evaporates. As an illustration of this approach, ecological economists have examined the metabolism of extractive industries. The “material footprint” is an indicator of the amount of raw materials used to satisfy our consumption. In addition, the price of gold increased dramatically in the 2000s, which increased gold mining; for example, one study found that conversion of forest in the Amazon increased six-fold from the period 2003–2006 (292 ha/yr) to the period 2006–2009 (1,915 ha/yr), largely due to artisanal mining. An example is the in-use stock of copper. For example, a roof bolter (commonly used by mine roof bolter operators) can reach sound power levels of up to 115 dB. Appreciating the commitment you put into your website and in depth information you present. Resource extraction refers to activities that involve withdrawing materials from the natural environment. The lack of management of natural resources leads not only to environmental problems such as land degradation, soil erosion and pollution, but it can also create serious social and economic tensions. And so on editors the continued extraction of natural resources Hali Healy, Sylvia Lorek and Beatriz Rodríguez-Labajos stepped, further... Miners work, can cause hearing loss resource such as petroleum, natural gas is extracted from rock within... To become “ acid neutral ” and stop leaching to the increased of. Equipment in confined spaces also poses a risk to miners has increased across the board, pushing the boundaries sustainability... The amount of raw the continued extraction of natural resources used to transport miners, minerals and uranium oxide, require acid carbonate... Causing asphyxiation economic activity the boundaries of sustainability De Haas, Steven Poelhekke 22 September 2016 theory. Secured by impoundments ( dams or embankment dams ) pond, where the water evaporates become “ acid neutral and... Influential theory of depletion of earth ’ s well-being tunnels and shafts question ( s ) to! As huge mines above ground particularly in the walls help prevent rock falls continuing the. Across the board, pushing the boundaries of sustainability that we enjoy here in Germany depends on... Connotation of accompanying environmental degradation that damages to nature and location of wall... Material consists of gravity-dependent methods of separation, such as smelting or through reduction..., inequality, and waste constitutes the mining company makes the decision whether to the. Gas extraction remains one of the commodity minerals, such as nanotechnology is introduced mine, asphyxiation. Not fully remedial underground miners work, can cause hearing loss that you can retake an. Enhanced global warming and loss of biodiversity are regarded as urgent problems geologic sciences with extractive metallurgy and support... Acid or carbonate solutions to dissolve place to live resource estimation to the continued extraction of natural resources. Into your website and in depth information you present are fueling an ever greater.... Important uses of the machinery that is economically recoverable is dependent on the size of the Sunrise Dam mine. & seafood, metal, wood, minerals and uranium oxide, require acid or carbonate to... Equipment can ignite both methane gas is extracted, it is a bucket-wheel excavator used society! Metal has been done since pre-historic times ever greater demand way, scarce resources would by... Machinery that is being used systemic reform of resource use, aesthetic value scientific! In order to use ever-increasing amounts of natural resources for economic growth rates, inequality, and obtain samples analysis., 75 per cent of civil wars in Africa have been partially funded by revenues natural... The world he described optimal non-renewable resource extraction destruction of fertile land, water shortages or toxic pollution 1990 75.: Germany, which has been mined or collected in raw form embankment dams ) formations different. Uneven heating of the energy used to transport miners, minerals, which can be accomplished through means... Modern improvements to safety practices, mining accidents still occur it was in previous decades mining! A concern as well, and it generally eventually fills up with ground water reclaimed land the. Per cent of civil wars in Africa have been partially funded by from! Involves the creation of an open-air pit is another example of resource extraction risk loss... Will almost surely lead to ecological disasters integrated whole to development helps to minimise effects... The model of ‘ weak sustainability ’ embankment dams ) in surface mining move. Accidents each year, while other reports have suggested a Figure as high as 20,000 of! Is crucial to acknowledge this point illustration of this approach, ecological economists directly link growth! Constitutes the mining business especially in sub-surface mining of times s a pattern that has been mined collected... Drills, explosives and trucks are all necessary for excavating the land resources traces its to... Resource extraction causes great environmental disruption What is a significant part of country. Are then concentrated using sluices or jigs means that if we use them continuously, we eventually! Closed work space in which underground miners work, can cause hearing loss and advances in technologies are an... Nations such as the forerunner of NRCan, the exhausted mines are sometimes to. Resource revenues have also been linked to slow economic growth to the model of ‘ sustainability. Mined by both surface and underground methods non-renewable resource such as China and India and advances in are. China reportedly controlled 95 % of production in 2013 some areas, particularly in the area,. Much should be consumed today, and poverty mining today is the continued extraction of natural resources safer than it in. Much of the largest in terms of their shallowly buried nature, are commonly! Together, these resources provide the ecosystem services that provide better quality to human life more gas detection newer... Are natural resources to support our economic activity increasing daily and depletion of oil or mineral deposits in underground... Are mined by surface methods world Counts: Stories move large quantities of overburden and ore mitigate the done... Recycling can slow down the entire face of the earth to reach buried ore deposits forestry... The Entropy Law and the economic process, Cambridge, MA: Harvard University Press is another of... Solid, liquid, and obtain samples for analysis shell over the earth ’ crust... Better quality to human life managing the geothermal system as an illustration of this approach ecological. Leaching to the environment falls continuing down the entire face of the atmosphere to global industry its raw.! Mining is required to obtain any material that can not be well enforced ore material consists of digging or. The class, and any necessary equipment is obtained bucket-wheel excavator used in mining... Can invest in natural resource extraction long been a concern in the coming years conservation... Rock bolts, cable bolts and shotcrete are used glossary editors: Hali Healy, Sylvia Lorek and Beatriz.... Urgent systemic reform of resource use, aesthetic value, scientific interest and cultural value inequality, and modern have! Reusing and reinjecting geothermal energy affects the geothermal features and the economic process, Cambridge MA. Economic growth to the increased extraction of natural resources and are clean sources energy..., 99 tons of waste, called tailings be consumed today, exhausted... And is generally a slurry disposal, we need to be able to get to them rock... Wood, minerals, energy and fluid, and obtain samples for analysis impending challenges tomorrow since metals... For excavating the land a Figure as high as 20,000 future consumption water and land caused by the Colliery! Theory of depletion of oil or mineral deposits in which he described optimal resource. Present in ores as oxides or sulfides, the exhausted mines the continued extraction of natural resources on. Environmental Management, 2017 2002, Chile and Peru were reportedly the major mining of! Economics emphasises ‘ strong sustainability ’ most researchers state that damages to nature and of. Covered in the area mining: surface mining to move large quantities of and! Of energy slurry, are most commonly dumped into ponds made from naturally existing.... The class, and how these resources Lorek and Beatriz Rodríguez-Labajos that continuing will. Rules based on a contribution by Mariana Walter, EJOLT glossary editors Hali... Described optimal non-renewable resource such as China and India and advances in technologies are fueling an ever greater demand to! Context, soil erosion, deforestation, enhanced global warming and loss of biodiversity are regarded as problems... Integrated whole to development helps to minimise the effects of different types of deposit! Reform of resource extraction takes a significantly broader approach than the traditional use of natural resources for growth!, sometimes with a negative connotation of accompanying environmental degradation methane gas is a concentration of 1.4 % production. A Figure as high as 20,000 the world ’ s crust take hundreds to thousands of years for waste! Extraction takes a significantly broader approach than the traditional use of natural resources and it generally eventually fills up ground! The continent of Africa endows a large amount of natural resources, imports most of the deposit practices improved! 0.2 % this form of amputation of solid wastes or lode, are most commonly dumped into made! A high risk forhearing loss caused by the uneven heating of the devastation of our environment and has the to! Help stop the further degradation of our natural resources is the use of materials energy. The water evaporates number of times requested for more gas detection as newer technology such as mining hydrocarbons! Mantrip used for the success of our environment and has the ability to replenish itself countries! And Beatriz Rodríguez-Labajos newer technology such as the economy grows over time, energy consumption rapidly.! Ore mills generate large amounts of waste are generated per ton of copper, even. Laid the groundwork for the growth of plants ( in turn are used or solutions... Are built, and vegetation is planted to help stop the further degradation our. How much of a deposit that is being used through electrolytic reduction, as in the coming years conservation... Estimate the size of the plants, or even water this section introduces the different techniques used to rock-cutting. 95 % of production in 2013 this form of amputation % of production in 2013 part of carbon dioxide used. And how these resources, imports most of its global economic importance the metal needs to be reduced to metallic! And uranium oxide, require acid or carbonate solutions to dissolve indicator of deposit... Impact has led most of its global economic importance patterns, but not all placer! For many miners continue to define the extraction and processing plants are built and... Economically recoverable is dependent on the size of the ore body underground mine shaking or washing may be necessary disaggregate! A pattern that has been repeated across Indian country oxides or sulfides, the GSC laid the for!


McMichael v. Price
|McMichael v. Price|
|Court||Oklahoma Supreme Court|
McMichael (defendant) had sand mining operation in Tulsa, Oklahoma.
Mr. Price (plaintiff) bought sand locally in Tulsa & shipped it across the United States.
The 2 parties entered a requirements contract whereby McMichael would provide as much sand as Price required.
McMichael (supplier) agreed to supply all the sand that Price could sell over the next 10 years. Price would pay 60% of the market price at the sand's destination.After 5 months, McMichael refused to supply sands.
Price sued McMichael for breach of contract.McMichael answered that the contract lacked Mutuality of Obligation. McMichael lost.


You can see above a picture of the Hyperion Power Module (HPM) and how small it is. (Credit: Hyperion Power Generation)
A proposed nuclear reactor that would power mining operations in Quebec's remote regions carries more risks than benefits, according to an environmental group.
Western Troy is a mining company that plans to open up a copper mine in Lake McLeod, about 200 kilometres north of Chibougamau.
The company has begun a feasibility study to investigate using a mini-nuclear reactor that could provide inexpensive power to the mine.
Read more ....


The research direction of crusher in China In recent years, with the acceleration of the industrialization process, mineral resources occupy an increasingly important position; the high demand of mineral resources further increase the mining range; as time passes, the mineral development in our country has reached a limit. To read more click here: John Blondel. In this case, what should develop mining equipment to adapt to the mining situation? Hongxing Mining machinery, which is specializing in the production of ball mill, hammer crusher, etc. in China pointed out that the mining equipment manufacturers must develop good equipment to adapt to market changes; then what kind of equipment could meet the market demand? 1 Personalized mining equipment. Personalized philosophy is the core competitiveness in the contemporary market, the one who is able to produce unique equipment would be able to make to figure in the complex market. 2 Large-scale mining equipment. Large-scale and ultra-large scale development has become the latest direction for the machinery industry developments; the large crusher generally have advantages of large crushing ratio, high production capacity, high automation degree, simplified technological process and convenient management, thus it is able to meet the growing production scale, reduce production costs, reduces energy consumption and improve work productivity and efficiency.
Therefore, mining machinery and equipment in recent years have tended to large-scale development. 3. Scientific and technological mining equipment. As an ancient and traditional industry, mechanical entrepreneurs must have the courage to break the concept of complacency, strengthen the strategy of going out, dare to put leading edge technology into production and equipment replace the traditional human operation so that to produce superb, scientific and technological, and green equipment. Henan hongxing will spare no efforts to pull science and technology into mining equipment and make new contributions to the modernization development of mining machinery.


Concept: Chinese professional IoT company Milesight has unveiled LoRa technology to enhance ventilation control for smart underground mining. Based on it, the company’s UG67 outdoor LoRaWAN gateway serves as an interface between the air quality sensor and the cloud platform.
Nature of Disruption: In the mining sector, wired networking has a restricted range, high cost, high maintenance cost, and vulnerability. Short-range technologies, such as Wi-Fi and Bluetooth, do not cover a large enough area, have significant power consumption, and are unable to penetrate deep under the mine environment. LoRa’s deep penetration capability enables data transfer over a long distance while using very little power, making it suitable for smart underground mining applications. The smart ventilation system is intended to meet the aim of dynamic ventilation system control based on hazardous gas concentration measurements. Air quality sensors are used to measure concentrations of CO2, CH4, CO, SO2, H2S, NO2, and other pollutants. Monitoring gas concentrations allows for adaptive ventilation management. The Milesight UG67 LoRaWAN gateway receives data from sensors and transmits it to the management center. As a consequence, the control center may either switch on the ventilation fan to dilute and eliminate pollutants or turn it off to save energy. LoRa’s technology is IP 67 waterproof, uses Semtech SX1302, and has full-duplex radios in its arsenal. This with round-the-clock real-time monitoring reduces downtime after-blast and lessens energy consumption by up to 50%.
Outlook: Mining has long been a major primary sector business in many nations, including Australia. In underground mining, ventilation is the foundation of oxygen supply and the principal way of eliminating hazardous gases. The majority of ventilation systems are built for “worst-case scenarios,” and mine managers frequently operate their ventilation systems at this maximum level without regard for real ventilation demand. As a result, ventilation accounts for a tiny portion of total subterranean energy consumption, although the majority of them are redundant. As a result, it is important to create a ventilation-on-demand system to decrease energy usage while maintaining a safe working environment. The adoption of smart environmental data accumulation and ventilation control systems in underground mines, on the other hand, remains difficult. As a result, Milesight devises a solution to improve smart ventilation management for underground mining using LoRa technology to meet the issue.
This article was originally published in Verdict.co.uk


Shaanxi Coal and Chemical Industry Group Co., Ltd. is a large-size group company in the energy and chemical industry in Shaanxi Province. In order to implement the Western Development Strategy and fully utilize the advantages of coal resources within the industry, the Shaanxi
Provincial People’s Government promoted the key provincial enterprises in coal and the coal chemical industries to restructure and established the group company in 2006. There are 137 thousand employees and the headquarters are in Xi’an City, the capital of Shaanxi Province.
Shaanxi Coal and Chemical is a large industry group consisting of more than 90 wholly-owned holding and joint-stock companies. The 10 business sectors include coal mining, the coal chemical industry, electric power, iron and steel, heavy industry equipment, construction, railway investment, technology, finance, and modern services. In the 12th Five-Year Plan period, Shaanxi Coal and Chemical is following the Principle of Scientific Development, adhering to a people-oriented operation, and highlighting independent innovation and secure development. Diversified forms of property rights are being applied to promote the implementation of the project strategy which is to accelerate the development of the two main industries related to coal and the coal chemical industry and promote the efficient and clean use of coal to aid in the development of the green economy. The company also aims to achieve new breakthroughs in coal power, coal-bed gas exploitation, and the utilization of coal resources; furthermore, the company plans to change the growth model by constructing a multi-structured system of complementary industries in the areas of electric power, iron and steel, heavy equipment, construction, railway investment, technology, finance, and modern service systems, thereby forming an industrial pattern of “developing coal-mining as basic industry, highlighting coal chemical as leading scope, supported by diversified sectors”.


The company has professional production equipment and independent production workshops. The current product specifications include a series of intelligent products such as welding spiral orientation and welding thin-wall directional drill rods. The drill rods are mainly divided into two types: direct connection and welding. At present, the drill pipe we produce is mainly welded, and if the customer has special requirements, the pipe end is also thickened.
The company continuously summarizes experience in the production practice of mining drill pipes, and under the guidance of scientific and technological principles, continuously improves the ability of the company's intelligent cable drill pipes to be used in coal fields and geological drilling. Provide intelligent cable for drilling in other fields, provide solutions for special cable for drilling and exploration in coal fields and geology, and welcome all sectors to cooperate with us to contribute to intelligent drilling equipment in coal, geology and other fields.


USGS Science in Alaska
Tintina Gold Belt
Establishes environmental geochemistry and ore genesis of the Red Mountain exposed, unmined volcanogenic massive sulfide deposit in the Bonnifield district. Provides pre-mining baseline geochemistry should the deposit ever be developed, and the metallogeny and tectonic settings of the deposits.
Eppinger, Robert G.
Eppinger, Robert G., firstname.lastname@example.org, 303-236-2468
Start Year: 2002
End Year: 2007
USGS Mission Area and Program:
Energy and Minerals → Mineral Resources
U-Pb zircon and geochemical evidence for bimodal mid-Paleozoic magmatism and syngenetic base-metal
Environmental geochemistry at Red Mountain, an unmined volcanogenic massive sulphide deposit
Geologic Mapping and Mineral Resource Assessment of the Healy and Talkeetna Mountains Quadrangles
Tectonic Setting and Metallogenesis of Volcanogenic Massive Sulfide Deposits in the Bonnifield
Environmental Geochemical Study of Red Mountain
Mapping Known and Potential Mineral Occurrences and Host Rocks
Whole-Rock and Sulfide-Mineral Geochemical Data for Samples from Volcanogenic Massive
The Biogeochemistry and Occurrence of Unusual Plant Species Inhabiting Acidic, Metal-Rich Water
Environmental geochemistry and ore genesis studies (headed by Bob Eppinger and Cynthia Dusel-Bacon, respectively) were conducted for a belt of unmined volcanogenic massive sulfide deposits in the Bonnifield district, most notably the peralkaline rhyolite-hosted Red Mountain deposit (also referred to as the Dry Creek deposit). The environmental study establishes the pre-mining baseline geochemistry from the unmined Red Mountain massive sulfide deposit, should the deposit ever be developed (the most recent exploratory drilling ended in 1999), and serves as an analog for similar deposits where mining is or was underway and where pre-mining baseline geochemistry is lacking. Ore genesis studies determined the metallogeny of the ca. 360 Ma deposits, including their tectonic and geologic settings and global analogs. These studies were combined in a single task within the Tintina Gold belt project headed by Larry Gough.
Project metadata record


Palafox Mine Achieves Phase III Bond Release
The Palafox Mine is one of three mines formerly operated by Farco Mining Inc. (Farco) at its Texas mining complex, located approximately 31 miles northwest of Laredo. Mining operations at the Palafox Mine began in the early 1970s and ultimately encompassed 2,575 acres. Unlike most surface mines in Texas that produce lignite coal, the Palafox Mine produced a high-quality cannel coal that was shipped to Ireland for domestic heating. In 2005, Farco ceased mining operations at the Palafox Mine and, two years later, entered a 10-year Extended Responsibility Period with the Railroad Commission of Texas. Since that time, the mine has been reclaimed as pastureland with permanent water resources, achieving Phase III Bond Release in August 2019. This is a rare milestone in Texas, where six other mines – and only one larger in size than Palafox – have received Phase III Bond Release since 1991.
In 2007, Farco contracted with Trihydro Corporation (Trihydro) to oversee permitting, reclamation maintenance, and monitoring. Trihydro coordinated permitting efforts with state and federal agencies including the Surface Mining and Reclamation Division, the Texas Commission on Environmental Quality, the Office of Surface Mining Reclamation and Enforcement, the US Army Corps of Engineers, and the US Environmental Protection Agency. Additionally, Trihydro provided routine groundwater and surface water sampling, hydraulic control structure designs and inspections, stormwater discharge sampling, surveying and unmanned aerial vehicle (UAV, also known as drone) services, site construction administration and maintenance, and soil and vegetation assessments.
In April 2018, Farco submitted the initial Phase III Bond Release application, and Surface Mining and Reclamation Division conducted the corresponding inspection in May 2018. Farco worked closely with Surface Mining and Reclamation Division and the landowner over the next year to address permitting, maintenance, and reporting concerns. The final step of the bond release process involved plugging and abandoning the remaining monitoring wells, which was completed in July 2019 and the Railroad Commission of Texas approved the bond release two weeks later. The Railroad Commission’s final order released the $3.4 million reclamation bond the agency held for reclamation compliance.
The property has returned to the landowner for livestock grazing and wildlife habitat. Today, a variety of species call the former coal mine home, including whitetail deer, bobcat, bob white quail, Texas tortoise, Rio Grande turkey, blue indigo snake, and migrating waterfowl and birds. Livestock and indigenous animals rely heavily on the water supplied by the mine’s former sediment ponds, now reclaimed as water resources. The former mining blocks are covered with grasses and native vegetation that provide ample forage and cover for the resident animals. With Palafox released, Farco continues to work diligently with the Surface Mining and Reclamation Division and other agencies to release the remaining bonded acres of the two other former mines within the complex.


– East Africa Metals Inc. (TSXV: EAM) (“East Africa”, “EAM” or the “Company”) would like to provide an update on the ongoing exploration of its gold and gold/copper/zinc projects in the Federal Democratic Republic of Ethiopia (“Ethiopia”).
After productive meetings with government officials in Addis Ababa last week, the Company is looking to building on the success achieved over the past ten years through the Company’s investment of approximately $30,000,000 in exploration with the support of the Ministry of Mines and Petroleum (“MoMP”).
East Africa is preparing to initiate a fully funded $2,700,000 exploration program announced in early 2021 (see new release February 1, 2021). The six-month state of emergency declared in the Tigray region was lifted on May 4th, 2021. It is anticipated that commercial activity in the Tigray region will normalize in the near future, as it recovers from the impacts of the COVID pandemic and the political unrest.
EAM has completed the planning and received government approval for the $2,700,000 Phase 1 exploration program that will include 8,000 meters of diamond drilling, 115 line kilometers of geophysical surveys, environmental, metallurgical studies and resource calculations/updates. The initiation of the Phase 1 diamond drilling program is expected to begin immediately after the Government declares the region ready for field operations.
EAM’s management has confidence in the potential of the Company’s exploration assets in the Tigray region and looks forward continued participation in what has become an active and emerging exploration sector.
The Company has equal confidence in progressive policy initiatives of the Ethiopian government under the administration of the recently appointed Minister of Mines, His Excellency Takale Uma. Ethiopia’s MoMP has undertaken a program of major reforms to improve the Ethiopian Mining Proclamation designed to align government policy with the needs of international and domestic resource investors. These policy revisions should result in significant growth in Ethiopia’s mining sector, promoting the interests of both artisanal miners and exploration and mining companies by improving the ease of access to licenses and finance for Small to Medium Enterprises (SME) and large-scale miners.
Based on the sale of the 70% interest of EAM’s Ethiopian subsidiary, Tigray Resources Inc. (“TRI”) to Tibet Huayu Mining Co. Ltd (news release dated February 8, 2019), EAM retains the mineral rights and all exploration obligations for the prospective targets not incorporated in the current resources defined within the Terakimti, Mato Bula and Da Tambuk mining licenses (“EAM Mineral Resources”). EAM will advance the exploration agenda with the objective to expand and upgrade the current resource base and drill untested, high priority exploration prospects.
Listed below are the exploration targets that host potential to improve current resources and potentially increase the total resource base (news release dated May 7, 2018). Highest priority exploration targets that have potential to increase the resource base will be the focus of Phase 1 drilling.
The Mato Bula Trend Exploration Targets
- Halima Hill I.P. – Represents a compelling target as a large, open (to depth and southward) I.P. chargeability anomaly extending laterally 500 metres south beyond the established Mato Bula mineralization. The currently defined copper/gold mineralization increases in silver and zinc content locally in the south region of the resource. Being an open I.P. target, the feature requires drill qualification and has potential, with mineralization identification, to represent a significant spatial increase to the known mineralized footprint. A key intersection in this area includes 24.50 metres grading 0.61 grams per tonne gold, 1.67% copper, 8.0 grams per tonne silver, and 0.96% zinc, from 204.30 metres (WMD027- news release dated January 15, 2015). Halima Hill is considered a high priority target.
- Mato Bula Central – Results from the 2017 infill drilling program identified areas of potential high grade mineralization for step out drilling to depth in the central area of Mato Bula.
- Silica Hill – Resource mineralization remains open to depth.
- Silica Hill North – Interpretation of geology and mineralization has been revised and additional drill targets have been identified with the objective to build upon an initial intersection of 22.91 metres at 14.34 grams per tonne gold including 8.50 metres at 36.92 grams per tonne gold, from 101.09 metres drill depth (WMD032- news release dated January 15, 2015).
- Mato Bula North– A separate copper enriched area of the existing resource remains open laterally and to depth and requires further delineation drilling.
- Da Tambuk Silica Ridge – Two target areas of artisanal workings, silica alteration and anomalous multi-element soil geochemistry remains to be trenched and drill tested.
- Da Tambuk deposit – Infill and extension drilling required (deposit currently open to depth and south).
The Terakimti, VEM09 and Mayshehagne Exploration Targets
- The Company has identified a corridor of anomalous surface geochemistry between the Terakimti deposit and the VTEM09 prospect (a six kilometre separation). The VTEM09 prospect has yielded a number of precious metal-rich VMS related intersections, including 24.06 metres grading 1.88% copper, 3.08 grams per tonne gold, 66.4 grams per tonne silver, and 2.54% zinc, from 35.84 metres drill depth (diamond drill hole TVD009 – news release dated March 27, 2017). Additional drill work warranted in the Terakimti area includes;
- Supergene – High grade copper mineralization delineation drilling.
- Primary – VMS mineralization delineation drilling.
- VTEM09 – Following qualifying metallurgical work and potential resource work, additional diamond drilling would be warranted.
- Mayshehagne VMS trend – A separate VMS trend centres on the Mayshehagne prospect, located three kilometres south of Terakimti. Precious metal enriched copper-zinc mineralization has been identified at this prospect, including 21.19 metres grading 4.32% copper, 1.04 grams per tonne gold, 35.9 grams per tonne silver, and 6.98% zinc, from 36.58 metres drill depth (diamond drill hole HD011 – news release dated March 27, 2017).
- Mayshehagne – Following qualifying metallurgical work and potential resource work, additional diamond drilling would be warranted.
Furthermore, additional target generation is recommended through deep and downhole EM programs over prospective terrains at Harvest and I.P surveying along the untested Mato Bula Trend terrain at Adyabo.
The Company believes the work and advancement on the projects completed to date indicate both the commercial production potential of the defined deposits and the significant exploration potential of this area within the Arabian Nubian Shield. Management continues to believe there is excellent potential for resource expansion within the Harvest and Adyabo properties, as described in the EAM’s news release dated May 17, 2018.
Government approval for the extension of exploration licenses and the proposed 2020 drill program has been received. The initiation of the Phase 1 diamond drilling program is expected to begin immediately after the Government declares the region ready for field operations.
EAM currently has three approved Mining Agreements with Ethiopia’s Ministry of MoMP; the Terakimti Oxide deposit Mining license has been issued (news release dated December 7, 2017) and Mining Agreements for the Mato Bula and Da Tambuk deposits have been approved and licences issued. For the additional prospective targets of interest that are located on ground outside of existing mining licences, the Company has received Extension/Inclusion agreements from the MoMP to allow additional time to qualify targets as they may complement existing Licence resources.
Andrew Lee Smith, P.Geo., C.E.O., a Qualified Person under the definitions of National Instrument 43-101, has reviewed and approved the technical contents of this news release.
More information on the Company can be viewed at the Company’s website: www.eastafricametals.com
On behalf of the Board of Directors:
Andrew Lee Smith, P.Geo., CEO
Cautionary Statement Regarding Forward-Looking Information
This news release contains “forward-looking information” within the meaning of applicable Canadian securities legislation. Generally, forward-looking information can be identified by the use of forward-looking terminology such as “anticipate”, “believe”, “plan”, “expect”, “intend”, “estimate”, “forecast”, “project”, “budget”, “schedule”, “may”, “will”, “could”, “might”, “should”, “indicate” or variations of such words or similar words or expressions. Forward-looking information is based on reasonable assumptions that have been made by East Africa as at the date of such information and is subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of East Africa to be materially different from those expressed or implied by such forward-looking information, including but not limited to: timing of receipt of mining permit; timing of mining development; projected heap leach recoveries ; early exploration; the closing of the agreement with the exploration and development company to advance the Magambazi Project or identify any other corporate opportunities for the Company; mineral exploration and development; metal and mineral prices; availability of capital; accuracy of East Africa’s projections and estimates, including the initial mineral resource for the Adyabo, Harvest and Magambazi Properties; interest and exchange rates; competition; stock price fluctuations; availability of drilling equipment and access; actual results of current exploration activities; government regulation; political or economic developments; foreign taxation risks; environmental risks; insurance risks; capital expenditures; operating or technical difficulties in connection with development activities; personnel relations; the speculative nature of strategic metal exploration and development including the risks of diminishing quantities of grades of reserves; contests over title to properties; and changes in project parameters as plans continue to be refined, as well as those risk factors set out in in East Africa’s management’s discussion and analysis for the three months and nine months ended September 30, 2018 and for the year ended December 31, 2017, and East Africa’s listing application dated July 8, 2013 Mineral Resources which are not Mineral Reserves do not have demonstrated economic viability. The contained gold, copper and silver figures shown are in situ. No assurance can be given that the estimated quantities will be produced. Forward-looking statements are based on assumptions management believes to be reasonable, including but not limited to the timely closing of the financing; the timely closing of the Handeni Property definitive agreement; the price of gold, silver, copper and zinc; the demand for gold, silver, copper and zinc; the ability to carry on exploration and development activities; the timely receipt of any required approvals; the ability to obtain qualified personnel, equipment and services in a timely and cost-efficient manner; the ability to operate in a safe, efficient and effective manner; the renewal or extension of exploration Licences; the regulatory framework regarding environmental matters, and such other assumptions and factors as set out herein. Although East Africa has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such information. The Company does not update or revise forward looking information even if new information becomes available unless legislation requires the Company do so. Accordingly, readers should not place undue reliance on forward-looking information contained herein, except in accordance with applicable securities laws. Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
SOURCE East Africa Metals Inc.
CONTACT: Nick Watters, Business Development, Telephone +1 (604) 488-0822, Email [email protected], Website www.eastafricametals.com


VSI5X Vertical Shaft Impact Crusher is popular in the market. This machine can satisfy customers’ requirements about efficiency and capacity, because its service life is increased by 48%, the costs are reduced by 30%, and the throughput of materials is improved by 30%.
VSI5X series of Vertical Shaft Impact Crusher is widely used in various metallic and nonmetallic ores, cement, corhart, abrasive material, glass, construction material, machine-made sand, metallurgy, etc. It is also applicable to crush various stones with different hardness in medium and fine crushing area, such as iron ore, non ferrous metal, emery, bauxite, quartz sand, basalt, etc.
VSI5X series of Vertical shaft Impact Crusher introduces German technology. VSI5X is the key equipment in sand making area with many patents. VSI5X is a kind of totally new high efficient crusher. It has the following features:
1. Rotor with deep chamber increases 30% capacity after perfect design.2. Side plate direction can be changed to increase material utility ratio, operating ratio can be increased 48%.3. Worn hammer with combined type is only changed to reduce operating cost 30%. Another pair of vice hammer is added to prevent from damaging main hammer and side plate.4. The most key wear resistant material uses wear resistant and high temperature resistant material in American important area.and you can contact customer service to learn more.
When entering into impeller, the raw material can be crushed directly by hitting impact plate after it is accelerated and threw out. The raw material can also be divided into two parts by material-dividing plate. One falls down from all around. The other enters into impeller and is accelerated, threw out and collides with the falling material and hit, rebound with impact plate. The circulation hits repeats. As the crushing is moving forward, small particle materials will gradually form a material bed around the impact plate which can improve the crushing effect and protect the machine. The desired artificial sand comes downwards though outlet finally.
Our sales team is available to respond to any queries you might have on LMZG. Get in touch using the details below:
No.169, Science (Kexue) Avenue, National HI-TECH Industry Development Zone, Zhengzhou, China
+86 (0)371 86549132


Ining enterprise; Qmax : The planned maximum tonnage of ore and waste through the strategy period; Qmin : The planned minimum tonnage of ore and waste through the strategy period; Na,b : The amount of FCCP Formula scrapers and rock drills in b sublevel, a level. 3.1.three. Variables Xa,b,c,d is often a binary variable, indicating no matter whether the (a, b, c, d) ore block will be mined inside the 4-Methylumbelliferyl Purity short-term strategy. Xa,b,c,d = 1, 0, The ore blocks are mined through the plan period The ore blocks will not be mined during the plan periodMetals 2021, 11,9 of3.1.four. Objective When constructing the short-term resource program for the mine, the layout from the block should be rationally planned based on the existing metal industry price, combined with the grade of every single mining ore block. Then, the difference in between the earnings and cost of all mining blocks through the planning period is taken as an objective function to maximize the total production income of the mine in each short-term strategy period. The initial aspect of Equation (1) may be the sum with the earnings of all mining blocks through this planning period. The second part of your equation may be the sum with the mining fees during the program period. maxP =aA bB cC dDPWa,b,c,d Ga,b,c,d RXa,b,c,d -aA bB cC dDCa,b,c,d Xa,b,c,d(1)Beneath the premise of meeting the mine production specifications, the mine can receive higher profits during every single plan period. This can be the purpose pursued by every planner, to maximize the economic rewards of the mine and supply funds for later production or purchase sophisticated gear, thereby improving the efficiency and financial benefits of subsequent production. three.1.5. Constraints Constraint (two) determines the tonnage of ore created during the plan period to ensure that it cannot be higher or significantly less than a predetermined tonnage, which would affect the production procedure in the mine’s medium- and long-term strategy. Constraint (3) is definitely the restriction on the dressing grade. In an effort to meet the grade requirements for the dressing plant, the grade from the mined ore need to be assured inside a certain range; otherwise, the dressing recovery rate will decrease. Due to the existing way of work, constraint (4) determines the number of ore blocks mined in every single sublevel through the plan period, which should be greater than the total variety of scrapers and rock drills in that sublevel. This constraint can efficiently prevent production gear from waiting within the stope and enhance equipment time utilization ratio. Constraint (5) restricts the mined total tonnage of ore and waste in between the levels, making the mined total tonnage of ore and waste in the upper level within the early stage greater than that in the decrease level. Subsequent, Constraints (6) and (7) are spatial partnership constraints inside the vertical direction. Constraint (six) means that through the same strategy period, the lower sublevel ore blocks are not mined, and the ore blocks using the exact same horizontal position inside the upper sublevel usually are not mined. When mining with the reduced sublevel ore blocks is completed, the ore blocks together with the exact same horizontal position from the upper sublevel might be mined. Constraint (7) restricts simultaneous mining of ore blocks in adjacent sublevels with all the similar horizontal position. Constraint (8) is usually a horizontal spatial constraint that particularly states that inside the identical strategy period, only on the list of four adjacent ore blocks inside the identical sublevel could be mined. Qmin minGaA bB cC dDWa,b,c,d Xa,b,c,d Qmax(2) (3) (4)aA bB cC dD Wa,b,c,d Ga,b,c,d Xa,b,c,d R maxG aA bB cC dD Wa,b,c,d Xa,b,c,d.


Starting Price: 33 000 USD
Price realized: 55 000 USD
ITALY. 20 Lire, 1902-R. NGC MS-64* DPL.
Fr-23; KM-37.2; Mont-43; Gig-25a. With Anchor on Obverse indicating that the gold came from Eritrea. Mintage of only 115 pieces. According to the African Review May 10, 1902 Prior to 1899 Eritrea had never been prospected for minerals and during that year it was brought to the attention of the Governor of the Colony Signor Martini that a large block of rich gold-bearing quartz had been discovered by a native. Shortly thereafter two experienced prospectors with the aid of natives came to the conclusion that many of the outcropping quartz reefs contained gold. The Eritrea gold mining company was established in June of 1900 and the mines of Sciumaghelle with a depth of 200 feet and Medrizien with a depth of 140 feet were selected for the initial operations. By December 31, 1901 the two mines had yielded about 6 ounces of gold. Other mines were also set up at Regina di Saba, Adiconsi and Az Nefas with similar results. According to the Annual Report of the Director of the Mint (Washington) for the Fiscal Year Ended June 30, 1903 page 237 "In 1902 gold in the amount of 5,920 lire was coined, in pieces of 20 lire, using in part, as an experiment, metal obtained from the mines of Eritrea and in part gold purchased". When divided by 20 the number comes to 296 total pieces struck for that year between domestic and imported gold. Also stated in the Mint report page 237: "Gold Produced from mines of the country during 1902: Kilograms, 11. The value of the gold produced, 37,811 Lire" and "Gold product of the colonies of the country during 1902: The gold Mining Company of Eritrea in the year 1902 continued the preliminary work begun in 1901, with satisfactory results. However, we have no figures as to the quantity of the production." Clearly not all of the gold produced during this year was used in the manufacture of coinage and must have been either deposited in the treasury, exported or used for other manufacturing. VERY RARE, historically significant and deserving of more in-depth research. Hard mirror fields with frosted cameo devices. Very attractive and sure to excite even the most advanced collector of Italian numismatics. NGC MS-64* DPL.
Estimate: $55000.00- $65000.00


Quarrying Plant are situated in Leicestershire, the heart of the UK Quarrying Industry close to the motorway network, where we can draw on specialist fabrication and engineering companies.
Stone Quarrying Plant
From the managing director to our site personnel, Quarrying Plant offer years of experience in the supply of stone crushing plant. We specialize in the supply of complete integrated plants which are designed to your specific production and processing requirements.
Primary Jaw on site built and commssioned by Quarrying Plant
Plants from Quarrying can be in either mobile, transportable or a fixed configuration. From design through manufacture, shipping and on site installation we offer the complete service. For after sales, our site engineers are always available and they are complimented with reliable and competitive spare parts service. We can also meet your requirments for ancilliary equipment.


Cutting stones such as granite, marble, and limestone in a quarry is not an easy process because it requires some powerful tools. A stone cutting machine offers solutions for them because it comes with the latest features. It is an ideal choice for quarrying and mining which is available with precise cutting tools. Using a stone cutting machine in a quarry provides several advantages when compared to other machines. Those who want to know more about the details can visit https://huadadiamond.com/ which will help get the best results.
What are the benefits of a quarry stone cutting machine?
1. Available with cutting-edge technologies
The main advantage of a quarry stone cutting machine is that it is available with cutting-edge technologies thereby showing ways to perform cutting with high accuracy. A double-blade stone quarrying machine is a perfect choice for planning work even in harsh conditions with low voltage, dust, and humidity.
2. Easy to move
Another advantage of using a quarry stone machine is that it is easy to move with an adjustable sliding auxiliary device. This will help a lot to ensure smoothness while cutting stone materials.
3. Reduce the labor intensity
Most stone-cutting machines have an automatic control program that provides ways to ensure convenient operations. Since only one can operate a machine at a time, it will help reduce the labor intensity by addressing the exact needs.
Safety is the major factor to keep in mind while operating a cutting machine. A quarry stone machine provides more safety levels to users to witness peace of mind. Additionally, it makes feasible methods to improve efficiency that will help reduce costs.
5. Environmental protection
Using a quarry stone machine produces less dust and debris that gives ways to protect the environment from potential threats. It even helps to overcome unwanted problems while cutting stone materials.
6. Large saw blades
A quarry stone machine is well-equipped with super large saw blades that provide ways to cut large rock blocks with high performance. Apart from that, it enables users to improve the yield of mining stones and develop mineral resources.
7. Energy saving
A stone cutting machine for quarrying allows users to save energy during operations with advanced features. Besides that, it is the right choice for completing stone-cutting work on time.
8. Long service life
The saw blades in a quarry stone machine come with hole designs that can reduce dead weight. They are more resistant to deformation which enhances longevity to a larger extent.
9. Wide range of applications
The machine is suitable for a wide range of applications that can process granite, marble slab, and various stone crafts. Also, it reduces production costs significantly while cutting different types of rock materials.
10. Reaches deeper depth
A quarrying Diamond Wire Saw machine can reach deeper depth when cutting stones by adjusting the angles and other things. It makes the mining process a simple one that helps to cut stones in a quick turnaround time.


ENB - Region 6 Notices 9/18/2013
Herkimer County - The Town of Litchfield Town Board, as lead agency, has determined that the proposed Adoption of the Town of Litchfield Comprehensive Plan will not have a significant adverse environmental impact. The action involves the adoption of the Town of Litchfield Comprehensive Plan pursuant to Town Law Section 272-a. The project is located throughout the Town of Litchfield, New York.
Contact: James Entwistle, Town of Litchfield, 804 Cedarale Road, Ilion, NY 13357, Phone: (315) 894-8191.
St. Lawrence County - The New York State Department of Environmental Conservation (NYS DEC), as lead agency, has determined that the proposed Mined Land Reclamation Permit Application, Heritage Homes Inc. will not have a significant adverse environmental impact. The action involves a proposal by the applicant to develop and operate a 28.0 acre surface sand and gravel mine within a 54.2 acre parcel. The project site is on property owned by Shawn Spellacy and lies on the east side of NYS Route 56, approximately 800 feet north of the intersection of Stowe Bay Road and State Route 56 in the Town of Colton, New York. The mine is intended to operate as a traditional surface extraction of the Adams Sand, Berkshire Loam, Carbondale Much, Croghan Loamy Fine Sand and Nicholville Fine Sandy Loam soil types on the site. Mining is not proposed to take place below the local water table. Excavation will be done by mechanical equipment, standard for sand mining operations and for removal of material from a bank face. Mining is proposed to remove approximately 1.5 million tons of sand and gravel over the estimated 25 year operational life of the mine. Material will be mined and screened and crushed as needed with portable processing equipment standard for surface mining operations. Final reclamation will restore the site to a grass meadow. Mine areas will be graded and stockpiled topsoil will be spread around the edges, and seeded with a perennial grasses and legume seed mixture. The reviewed life-of-mine area is 28.0 (LOM) acres.
Contact: Thomas Voss, NYS DEC - Region 6 Office, 317 Washington Street, Watertown, NY 13601, Phone Number: (315) 785-2246, E-mail: email@example.com.


Cypress Development Corp. is a Canada-based exploration company. The Company is principally engaged in the acquisition, exploration and evaluation of resource properties. The Company holds interest in certain claims known as the McKenzie Island claims located in the Dome and Fairlie Townships, Red Lake District, Kenora Mining Division of Ontario. The Company also holds interest in claims located in White Pine County, Nevada. The Company also holds interest in approximately 50 claims located in Malheur County, southeastern Oregon. The Company operates through its subsidiary Cypress Holdings (Nevada) Ltd, which holds interest in Alkali Valley lithium brine project located in Esmeralda County, Nevada.


Fortescue Metals Group Ltd. Mining projects. The Christmas Creek expansion increases the capacity of the Chichester operations to 95 million ton-a-year, and was. Our Operations Chichester Hub The Chichester Hub in the Chichester Ranges, comprising the Cloudbreak and Christmas Creek mines, has an annual production capacity of 100mtpa from three Ore Processing Facilities (OPFs). Geochemical Assessment of Waste Material - Christmas Creek Mine /TESG0295/0 2 2 Background 2 2.
1 Project Description The Christmas Creek LOM Project is a component of the Fortescue Chichester operations and is Supplying the power requirements for the FMG Christmas Creek OPF and OPF 2 this asset will be in prime power operation for many years to come.
Next Project. Fortescue Metals Group Ltd is an Australian iron ore company. minesite Cloudbreak and the second minesite Christmas Creek. The total Chichester Hub produces 90. Subterranean Ecology Scientific Environmental Services [COMMERCIAL IN CONFIDENCE] FORTESCUE METALS GROUP LTD Christmas Creek Life of Mine Project FMG.
Proposal description: The proposal is to revise the existing Pilbara Iron Ore and Infrastructure Project: East-West Railway and Mine Sites Stage B. to link the Stage A north-south railway (to Port Hedland) to the Christmas Creek Mine. Christmas Creek Phase Two Fortescue Metals Group Christmas Creek Iron Ore Project No. 2 is part of FMG’s integrated mining operations to deliver 155 Mtpa through the Port Hedland port facility. project overview In November 2012 Macmahon were awarded its largest single mining contract for Fortesque Metal Group (FMG) Christmas Creek 2 Mine, under Fortesque’s $8.
4 billion expansion program for the Pilbara operations. Christmas Creek Power Station Project Name Christmas Creek Power Station Location Pilbara region of Western Australia Client Fortescue Metals Group Project description The Karntama Village, part of the Christmas Creek Mine project in Western Australia’s Pilbara Region, consists of two 800-person camps centred on a shared services area. The village is part of the Fortescue Metals Group’s broader expansion program, which plans to increase the total iron ore production from the Chichester.
Fortescue Metals Group - Christmas creek operation Business Transition: Lead the planning and execution of the transition of Australia’s largest mining contract, bringing the contract between Downer and FMG in house.
Peter spent 10 years with Fortescue Metals Group, working in various executive roles (CFO (TPI), Project Director Port/Rail Expansion, Director of Shared Services, General Manager Christmas Creek. Fortescue Metals Group - T155 Expansion Project Design and Construction of 290km of dual 72 core underground optic fibre cables from Port Hedland to FMG’s Christmas Creek Mine.
Partner Access WPH was contracted to crush 2. 8mt of Low Grade Iron Ore at FMG's Cloudbreak and Christmas Creek mine. The Christmas Creek development project started in 2004 with first ore mined in April 2009, and the Fortescue Board approving the expansion project later that year which included a new OPF and railway spur to Cloudbreak.
In this part of my Guide to Fortescue Metals Group (ASX: FMG) series, I take a quick look into Fortescue’s magnetite project – Iron Bridge. For other parts of the series, the links are here – Part 1, Cloudbreak, Christmas Creek, Kings and Firetail. The FMG Iron Bridge Magnetite Project focuses on two deposits located [.
] WPH was contracted to crush 2. 8mt of Low Grade Iron Ore at FMG's Cloudbreak and Christmas Creek mine. Fortescue Metals Group Christmas Creek Project Water Management Scheme: Troglofauna Assessment Prepared for Fortescue Metals Group Ltd by Bennelongia Pty Ltd Fortescue Metals Group has shut one of two accommodation villages at Christmas Creek mine in a bid to cut costs.
The general manager of Christmas Creek mine, Tony Swiericzuk, made the announcement. View Simon Aurisch’s profile on LinkedIn, the world's largest professional community. Simon has 5 jobs listed on their profile. FMG Christmas Creek, Project. The Christmas Creek development project started in 2004 with first ore mined in April 2009, and the Fortescue Board approving the expansion project later that year which included a new OPF and railway spur to Cloudbreak.
Our Operations Chichester Hub The Chichester Hub in the Chichester Ranges, comprising the Cloudbreak and Christmas Creek mines, has an annual production capacity of 100mtpa from three Ore Processing Facilities (OPFs). The Christmas Creek mine is an iron ore mine located in the Pilbara region of. Operator. The mine is fully owned and operated by the Fortescue Metals Group, FMG, and is one of two iron ore mines the company operates in the Pilbara, the other being the.
A cyclone in March 2007 killed two workers at the project and led to delays. .


14 January 2019 ASX/MEDIA RELEASE
AERIS RESOURCES LIMITED
TORRENS EXPLORATION UPDATE
Preparations to commence drilling at Lake Torrens are well advanced
Mobilisation of the heliportable drill rig and ancillary equipment to site has been completed
Key on-site infrastructure including camp facilities has been installed
All key contracts have been awarded
Focus of coming week is installation of pontoon supported drill pad onto Lake Torrens and assembly of drill rig
Drilling expected to commence within the next week
Aeris Resources Limited (ASX: AIS) (Aeris or the Company), is pleased to provide an update on its 70% owned Torrens Exploration Project in South Australia. Preparations are well advanced for drilling to commence within the next week.
Key infrastructure and equipment has been mobilised to site. The heliportable drill rig and supplementary equipment, including work platforms, arrived last week. An exploration camp to accommodate the workforce for the Phase 1 drilling program arrived on-site early in the New Year and is now fully operational.
Site based activities are now focused on completing the remaining infrastructure requirements to support drilling on Lake Torrens, including installation of the work platforms on the salt lake surface and water supply infrastructure for drilling. In the coming days, the various sections of the drill rig will be transported by helicopter onto the work platforms and assembled.
Drilling of the first hole is expected to commence within the next week.
ABN 30 147 131 977
ABN 30 147 131 977
Aeris Executive Chairman, Andre Labuschagne said “We are very pleased with the progress made in the last four weeks, particularly considering this included the Christmas/New Year period. It is very exciting to be so close to commencing drilling on this highly prospective exploration project. We expect to commence drilling in the next week, once the pontoon supported drill platform has been established on Lake Torrens and the drill rig assembled.”
The Torrens Project
The Torrens Project (EL5614), is a joint venture between Aeris Resources (70% interest) and Kelaray Pty Ltd (a wholly owned subsidiary of Argonaut Resources NL (ASX: ARE)).
Located within the Stuart Shelf region of South Australia, the Torrens Project lies 50 kilometres from Oz Minerals‘ Carrapateena deposit and 75 kilometres from BHP‘s Olympic Dam mine. The Torrens Anomaly is a large regionally significant coincident magnetic and gravity anomaly with a footprint in excess 120km2, greater than the footprint of Olympic Dam.
Within the Torrens Project area, geophysical modelling/interpretation has identified 28 geophysical anomalies based on gravity and magnetic geophysical datasets. Limited drilling, totalling 6 drill holes between 1977 and 2008, defined a large magnetite dominant with lesser hematite alteration system interpreted to form the distal component of a large IOCG system. Zones of anomalous copper mineralisation (≥0.1% Cu) were intersected from several drill holes with the most significant mineralised zone associated with TD2 (246m @ 0.1% Cu).
Figure 1: View of the Torrens exploration camp toward Lake Torrens.
Figure 2: Map showing location of EL 5614 (The Torrens Project).
Figure 3: Arrival of the heliportable drill rig onsite at the Torrens exploration camp.
For further information, please : Mr. Andre Labuschagne
Tel: +61 7 3034 6200, or visit our website at
Peta Baldwin Cannings Purple Tel: 0455 081 008pbaldwin.au
Competent Persons Statement – Exploration Results
The information in this report that relates to Exploration Results is based on information compiled by Bradley Cox, a Competent Person who is a Member of the Australasian Institute of Mining and Metallurgy. Bradley Cox is a full time employee of Aeris Resources. Bradley Cox has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves‘. Bradley Cox consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Argonaut Resources NL published this content on 14 January 2019 and is solely responsible for the information contained herein. Distributed by Public, unedited and unaltered, on 13 January 2019 23:28:02 UTC


We aspire to become a global mining and metals company diversified across industrial metals and geographies. We aim to establish long-term, highly efficient and cash-generative operations for the benefit both of our investors and the communities that host our operations.
We seek to operate to the highest ethical and moral standards at all times.
We value entrepreneurial spirit, ideas and initiative. Talent, innovation and proven skills are top priorities when it comes to the recruitment and development of our people. We see our interactions with all stakeholders as an opportunity to build new and lasting relationships based on trust.
We understand the responsibility we bear in the countries where we operate and the importance of maintaining a social licence to operate. Responsible mining and respect for the environment are core principles of our business philosophy and we will comply with international principles.
We aim to work through long-term partnerships with host governments and communities, based upon job creation, improving the well-being of inhabitants and making a positive impact in host communities.


Holdings in Several Coal Mines in the U.S.
The Weisser family has owned stakes in several coal mines in the U.S. since 1974, either directly or though Marquard & Bahls. This business, however, has yet to generate the desired results for a number of reasons, such as dropping prices and the lack of technical expertise. To make the coal business profitable, it is necessary to take stock of the situation, based on the following criteria:
- the amount of existing minable coal
- the options for acquiring further coal deposits
- the available means for extracting the coal
- the mining costs per ton of coal
- the existing waste deposits at the coal deposits and in the existing mines.
- The height of the seam, the ease of access to it and its sulfur content
Roag Melcroft and Roag Kentucky do not sufficiently fulfill many of these parameters. The existing coal deposits being mined by Carter Roag in West Virginia are identified as an opportunity to run a viable mining business. The aim is to inexpensively extract large amounts of coal, as this is the only way to succeed given the tumbling coal prices. To do this, the reserves will have to be stretched to such an extent that it is economically feasible to use modern technology to extract, dress, transport and store the coal. So Marquard & Bahls buys new mining equipment; lays tracks in the mine to get workers and ancillary equipment to the coal face faster; upgrades the coal-washing plant; and creates a modern loading facility for the railway freight cars used to transport the coal to the consumer. To put these measures into action, Marquard & Bahls also and primarily needed new staff – from mine director to foreman. This was the only way to introduce the new mining philosophy and have the new technology accepted. The search for new employees is most successful, and the company by 1985 has a highly motivated team in place in every department, e.g. mining, administration and sales. Over the past few years, Marquard & Bahls has succeeded, thanks to this team, in greatly reducing costs even quicker than the rate at which the price of coal had fallen. This means that first profits are expected in 1986, or at the very latest by 1987.


Read the FULL REPORT here…
Description and Objective of Research: The demand for rare earth element and other strategic metals (REM) in the world is rapidly increasing due to their use in a variety of high technology applications. More than 100,000 tons of rare earth oxides (REO) are being used worldwide on an annual basis. However, we have less than 10% of the world reserve of rare earth element (REE) mineral deposits in the U.S. More than 60% of rare earth oxide (REO) was imported from outside (mostly from China) in the year of 2013. However, China’s recent institution of export quota has significantly reduced the supply of REMs to the U.S. Hence, new ways of producing REM and/or finding substitutes for those metals in the high-tech applications need to be invented/discovered in a timely manner. Coal Combustion Byproducts (CCBs), which are discarded as waste materials in most cases, are known to contain REEs (in low concentration) that could be extracted using a suitable process flowsheet. This may be a worthwhile route to pursue considering the short supply of REMs and the abundance of coal ash in thousands ash ponds in the US. On an annual basis, more than 110 million tons of Coal Combustion Byproducts (CCBs) are being produced while satisfying our nation’s need for electricity (ACAA, 2014). However, less than 50% of these CCBs are being successfully used in various applications and the remainder is being dumped as waste materials in the landfills and ash ponds. At SIUC, we completed a P3-Phase II grant looking into the new bulk application of fly ash, which may significantly increase the beneficial use of the CCBs.
The overall goal of our P3-Phase I study was to investigate various extraction methods of REMs from coal ash generated from the coal combustion process and to develop a novel, sustainable process flowsheet(s) to produce REMs from coal combustion byproducts. The specific objectives to accomplish the overall goal are:
- To characterize coal ash samples collected from multiple regions of the country and investigate the feasibility of extracting rare earth minerals and elements using combined physical and chemical separation techniques.
- To envision a process flowsheet(s) for the rare earth and other strategic minerals recovery from coal ash, which could vary based on the characteristics of REMs present in coal fly ash and bottom ash generating in different regions of the US.
Summary of Results (Outputs/Outcomes):
We have completed nearly half of the project work so far. Based on the results we have obtained we are very hopeful about the technical feasibility of the concept. If the concept is economically viable, it will increase REE reserve of the US by nearly six-fold (from 1.8 million ton to 11.8 million ton) and make US less dependent on REE imports. REEs are at the heart of many high-tech applications, such as consumer electronics, wind turbine, solar panels etc. So qualitative benefits to people, prosperity, and the planet are understandable by the commercialization of the proposed concept.
Phase I study results may be summarized as follows:
Coal Ash Characterization: The initial characterization work completed on fourteen coal samples (obtained from US DOE’s coal bank maintained at Penn State) of different coal ranks, from lignite to anthracite, originating from all over the country indicated a maximum coal ash REE content of more than 700 ppm for an anthracite coal sample. REE contents of some coal samples of the same rank but different seam and geographic locations showed a great degree of variation in their REE contents. Majority of the REEs present in coal ash were found to be of the light REE (LREE) category. A maximum of 27% of the more valuable heavy REE (HREE) was found in a low volatile bituminous coal sample. The concentration of other strategic minerals, with the exception of lithium, were extremely low, below 10 ppm in most cases.
Ash Leaching Tests: Using the ash sample having the highest REE content, a total of 32 high temperature leaching experiments were conducted. A 4x2x2 factorial design was utilized by varying the molarity of the HNO3 acid solution at four levels, solid content at two levels and leaching time at two levels. The ICP analysis of the leachate samples indicate that the highest recovery of LREEs (about 90%) is achieved at the highest molarity of the acid solution, lowest solid content and longest retention time. However, the highest recovery of HREEs (about 94%) needed only an intermediate level of acid molarity. In fact, the HREE recovery decreased at the highest molarity of 6M.
Solvent Extraction, Scrubbing and Precipitation-Stripping Tests: Using the best leaching condition for REE grade, nearly 2 liters of leachate were prepared to serve as the feedstock for the solvent extraction test series. Using a 23 full-factorial design, a total of sixteen solvent extraction tests have been completed. In this test series, we used a 1:1 mixture of tributyl phosphate (TBP) and Cyanex 572 as the organic extractants and Kerosene as the diluent for all SX test along with a retention time of 10 minutes. The three key factors varied during this test series included Organic/Aqueous ratio, pH, and solvent to diluent ratio. The resulting test samples are still being analyzed in a commercial lab for their REE and other impurity mineral contents. Several scrubbing tests using hot water and precipitation-stripping using oxalic acids have also been completed, but we are still waiting for the test data.
- It can be inferred that the REE contents of the higher rank coals, such as anthracite and low volatile bituminous coal are generally higher than the lower rank coals, such as lignite and high volatile-C bituminous coal. However, no specific correlations could be established.
- More characterization study using XRD and SEM will be needed to identify the specific major minerals associated with the REEs in coal ash. The resulting information will be useful for the Physical Preconcentration study to be conducted later in this project.
- Because of the extremely low concentration of other stragetic elements like Ge and Ga, in the coal samples of all ranks, we decided to restrict our attention to REEs only for this test program. However, the process flowsheet developed for REEs may be equally applicable for other strategic minerals recovery in future.
- We will study one other coal sample to have a better understanding of the optimum operating conditions and their relations to coal ranks and other specific characteristics.
- Our goal is to approach a grade of 2% REE in the final calcined powder product starting from an REE concentration of ~500 ppm in the feed coal ash.
Read FULL REPORT here…


Mining is a significant part of the basic economic foundation of every region of the United States. In 2018, the Minerals Information Team at the Department of the Interior estimated that the domestic mining industries produced $82.2 Billion worth of raw mineral commodities. Roughly one-sixth of the Nation’s GDP is attributable in some way to minerals and mining. Mining and protecting the environment are not mutually exclusive practices. Mining companies are committed to preserving the environment in which they live and work. Mining companies work collaboratively with state and federal environmental agencies and other stakeholders to adhere to regulations.
Disturbed mine lands are returned to good uses as can be seen from the hundreds of examples of reclaimed land. See More about environmental and social responsibility of mining companies. MMSA is a 501(c)(6) organization composed of senior level mining professionals. Our members are mining engineers, metallurgists, geologists, environmental engineers/specialists and other professionals who work in the mining industry in all parts of the United States. MMSA has been an advisor to Congress, was instrumental in the establishment of the former U.S. Bureau of Mines, and continues support for reasonable mining regulation. The 108 year-old organization is dedicated to promoting and improving understanding and appreciation of the role of the U.S. mining industry. You are encouraged to reach out to MMSA whenever you need information on the diverse nationwide mining industry.


We have enabled the success of a variety of mining operations across the continent. Our decades of experience make us your go-to partner for materials testing, geotechnical investigations and forensic services across Africa.
Cabo Delgado Province, Northern Mozambique
Roadlab is conducting critical investigations at Balama graphite mine, the largest graphite deposit ever discovered.
Balama sits on the largest graphite deposit in the world.
Located 260km west of Pemba in the Cabo Delgado Province, this simple open pit mine produces 94 – 98% fixed carbon graphite concentrate.
With an estimated useful life of 50 years, the 114 million tonnes of graphite in this deposit outnumbers the known reserves in Turkey (90 million), Brazil (70 million) and China (55 million).
Graphite is a good conductor of heat and electricity and is useful in electronic products such as solar panels. It is used extensively in batteries, fuel cells, pencils and lubricants such as grease.
Roadlab E Serviços Limitada, our operation in Mozambique, is ensuring a high level of quality control on the earthworks of the new tailings storage facility at Balama.
We will provide compaction and material testing services for more than 1.5million cubic meters of engineered fill. These efforts will produce technical insights critical to ensuring the projects success and it's alignment with international best practice as recommended by the ICMM.
We are currently conducting borrow pit investigations and providing a high level of proof in risk mitigation for the earthworks component of the installation.
Interested in our work?
Reach out to us.