Ok Tedi is a large copper, gold and silver mine, located in the Star Mountains of Western Province.
Owned by the Independent State of Papua New Guinea and operated by Ok Tedi Mining Limited, the mine is expected to remain in production until at least 2025.
As the single largest employer in the Western Province, the company employs more than 1,600 employees and 5,000 contractors.
The Porgera mine, owned 95% by Barrick Niugini Limited (owned equally by Barrick Gold and Zijin) and 5% by Mineral Resources Enga (owned equally by the Enga Provincial Government and the Special Mining Lease Landowners), produces gold and silver.
The mine is located in Enga Province and produces approximately half a million ounces of gold annually.
It is expected to remain in production for another 20 years, employing in excess of 3,000 people (including employees and contractors).
The Lihir gold mine is PNG’s largest gold producer. Located on Aniolam Island in the New Ireland Province, the mine is owned by Newcrest Mining Limited.
Since production commenced in 1997, the mine has produced more than 10 million ounces of gold, and it still has a remaining mine life of around 26 years. Approximately 5,000 Papua New Guineans work at Lihir (employees and contractors).
Located in Madang, Ramu NiCo is PNG’s first nickel-cobalt project. It is owned and operated by MCC with total investment of US$2 billion.
Following construction from 2006 to 2011, load commissioning commenced in 2012. The designed capacity is 32,000 tpa for nickel 3,200 tpa for cobalt, 107.7% nameplate capacity is achieved in 2017, which is world-leading for nickel laterite projects.
During construction period, over 3,000 nationals were employed and currently around 2,000 PNG nationals (including contractors) work with the project. Now extensive exploration is underway to underpin future project expansion to further improve production capacity and profitability.
The Hidden Valley mine is located in Morobe Province, Papua New Guinea, around 210km north-west of Port Moresby, and is owned by Harmony Gold Mining Company Limited. Mining commenced in 2007 with first gold poured in 2009.
Since then Hidden Valley has produced over 1 million ounces of gold and 14 million ounces of silver. Current mine life is to 2023 and the mine will produce an average of 200,000 ounce gold and 3 million ounces of silver over this period.
A mining study is underway to evaluate an extension of the mine life to 2026.
The Simberi gold mine is located in the northernmost island in the Tabar group of islands in New Ireland Province. Owned and operated by St Barbara Limited, it is the largest employer on the island.
A 50:50 Joint Venture between Newcrest Mining Limited and Harmony Gold Limited, the Wafi- Golpu gold and copper mine is expected to create an estimated 2,500 jobs during construction, and approximately 850 ongoing jobs when operational.
An initial capital investment is expected of approximately PGK9.1 billion (US$2.8 billion), with total capital expenditure expected to be approximately PGK17.4 billion (US$5.4 billion) over the life of the mine.
Kula Gold Limited was granted a Mining Lease for the Woodlark Island Gold Project in July 2014. The project is located on Woodlark Island in Milne Bay Province.
Geopacific Resources has now acquired most of the shares of this project.
PanAust Limited holds an 80 per cent interest in the Frieda River Copper-Gold Project. Frieda River is one of the largest known undeveloped copper and gold deposits in the world.
The project is anticipated to make substantial positive economic contribution to PNG at both a national and provincial level.
Era Resources is focused on the development of its significant Yandera copper project, located in Madang Province.
With identified mineral resources approaching 1 billion tonnes and a prefeasibility study with positive results completed in 2017, the project has potential to provide long-term positive economic and infrastructure impacts on the local, provincial, and national levels.


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carton box;Manufacturer custom-made cooling chain conveyor for forgings High temperature resistant chain conveyor belt
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Manufacturer custom-made cooling chain conveyor for forgings High temperature resistant chain conveyor belt
Manufacturer custom-made cooling chain conveyor for forgings High temperature resistant chain conveyor belt can be made in Carbon Steel, stainless steel and engineering plastics and other materials, a wide variety of specifications, according to the transportation of materials and process requirements, to meet the needs of all walks of life. Widely used in food, canned food, drugs, beverages, cosmetics and washing supplies, paper products, condiments, dairy, and tobacco, etc.
The main features of the chain plate: Smooth operation, and not easily disturbed by other materials, can carry the heavy weight of materials, durable. Can Be based on specific circumstances, the design, and production of appropriate specifications of the chainplate. Common Chain Plate Specifications 31.75,38.1,50.8, relative to other transmission belts, the cost is higher.
1. The belt conveyor has a wide range of conveying capacity, which can accomplish tasks with a small conveying capacity, and can also complete tasks of tens of tons or even thousands of tons per hour. 2. The belt conveyor conveys a wide variety of logistics, and the conveyor belt has high corrosion resistance. 3. The belt conveyor can adapt to 30-35% of the terrain, and the length of the line can be extended as needed. 4. The belt conveyor can be fed from one or more points according to the process requirements. 5. The belt conveyor has high reliability and is extremely stable in operation. 6. Belt conveyors are highly safe and require very few production personnel. 7. The material conveyed by the belt conveyor requires little labor and energy consumption, and the maintenance cost is very low.
Belt Conveyor Scope Belt conveyors are widely used in the transportation of materials in mining, gravel, metallurgy, building materials, chemical, mineral processing, coal mining and other industries. Belt conveyor and belt conveyor are suitable for conveying low-grinding materials and bagged materials such as coal, gravel and sand with a bulk density of less than 1.67/ton/m3, which are easy to be drawn, powdery, granular and small pieces. , cement, fertilizer, food, etc. The temperature of the material to be delivered is less than 60 °C. The captain and assembly form can be determined according to the user's requirements. The drive can be used with an electric roller or a drive device with a drive frame. Characteristics of belt conveyor The belt conveyor produced by our factory has large conveying capacity, long conveying distance, stable transportation, no relative movement between material and conveyor belt, low noise, simple structure, convenient maintenance, low energy consumption, standardization of components, etc. Advantages, widely used in mining, metallurgy, coal and other departments, used to transport loose materials or pieces, according to the requirements of the transport process, can be transported in a single unit, or multiple units or other horizontal or inclined with other transport equipment Conveying system to meet the needs of different layouts
Dezhou Kezhen Machinery Equipment Manufacturing Co.,Ltd is located in shandong province dezhou NingJin County qi industrial park, since it was founded in 2009, the company with advanced modern management system, seiko production, independent innovation, collected a batch of scientific and technological elite, the company's internal computer information technology, the main products are mesh belt, chain plate, chain, conveyor, dryers, quantitative packing machine and other automatic conveying equipment, widely used in automatic production line, food processing and medical logistics and other industries. Our company has the high quality specialized research and development, the production and the after-sales service team, has the domestic advanced mechanical equipment and the skilled engineer, and has accumulated the rich experience. We can meet customers' requirements for any products, customized for customers of all kinds of mesh belt, chain board, etc. Spiral mesh belt is one of our special products, used in frozen food and snack baking, we have provided many well-known companies with high quality products, most of the products exported overseas, with its low price and high quality. Dezhou Kezhen Machinery Equipment Manufacturing Co.,Ltd .All products will make you feel satisfied, we always adhere to the customer-oriented production concept, in its own development at the same time, long-term cooperation with research institutes at home and abroad, introduced the domestic and foreign advanced technology, process and test base, the development of new products and new technology promotion. Dezhou kezhen machinery equipment manufacturing co., LTD always adheres to the policy of "survival by quality, development by reputation", and tries its best to develop domestic and foreign markets and establish long-term cooperative relations with every customer. Welcome friends from all walks of life to visit guidance, negotiate cooperation!


Felten Energy Group is one of the world’s largest base metals suppliers. We are building global connectivity between miners, smelters, and refined metal fabricators: benefitting from economies of scale. We underwrite trading volumes by signing off-take agreements and developing downstream outlets. We form strategic alliances. We invest in infrastructure that streamlines and simplifies supply chains.
We source copper from resource-rich areas in Africa, Australia, Canada, China, Europe, Indonesia, South America and the US. We work closely with our partners to develop long-term relationships and to guarantee consistent, high quality supplies.
We trade the whole spectrum of iron ore products and grades, including fine, low-grade and high-grade lump. We deal with the major producers in key exporting countries. We use our extensive international network to connect specific buyers with particular grades of stock.
We have steadily built up traded volumes in recent years to become a top-three coal trading company. Our focus is on developing incisive trading solutions via efficient delivery methods. As volumes have increased so have our economies of scale and our ability to take advantage of global arbitrage.


The LLC "SOLVEX" is an engineering company specializing in solvent extraction SX -and rectification. "SOLVEX" provides a full range of services associated with developing technologies for recovery separation and purification of substances, from new extractants development to engineering and production of units. "SOLVEX" is manufacturing the equipment and the line of unique extractants protected by the Russian patents.
"SOLVEX" company is a resident of the Innovation Center "Skolkovo" Russia. "SOLVEX" has successfully introduced extraction units to the enterprises of the Group of companies "Rostech", gold refineries and manufacturers of mineral fertilizers.
The mission of the company is popularization of SX technologies through handling applied problems of various profiles therewith.


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Belt Conveyor Overview
DSMAC belt conveyor system can be one independently or multi-conveyors or combined with other transfer equipments to meet different requirements. It can be used in the temperature range from -20 to 40'C, and the temperature of transferred material by this belt conveyer should be lower than 50℃.
Belt Conveyor Features
1. High standardization degree.
2. Mass transport.
3. Simple structure.
4. Easy maintenance.
5. Standard components.
The Dorner Advantage of Belt Conveyors
1.Largest Selection of Belted Conveyors
Dorner offers the largest selection of belted conveyors in the industry with over 30 pre-engineered models for every application that are built to the customer’s specifications. This ensures each customers finds the perfect configuration for their product.
With patented rack and pinion technology for belt tensioning and an engineered v-guide process technology to ensure belt tracking, Dorner belt conveyors are the most efficient, precise conveyor systems on the market.
3.Quality Testing and Shipping
All conveyors are run before being shipped to ensure out-of the-box optimum performance, saving the customer time and giving peace of mind. Once inspected and tested, most conveyors ship in 3 days.
4.Free CAD Drawings
Dorner provides free online 2D and 3D CAD drawings of most models in convertible IGES format. Browse our 2D CAD and 3D CAD catalogs today.
Belt Conveyor Application
Our belt conveyor is widely used in mining, metallurgy, coal and other industries to transport bulk materials or materials in pieces. The motor drives the driving rollers of the belt conveyor through the strong belt advances. Materials are conveyed from the original place to where they are needed. The belt conveyor can be installed horizontally or aslope to meet the needs of different transporting requirements.
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By Desmond Subramani
South Deep Mine has some complex geology, it is located near Westonaria, around 50km from Johannesburg, South Africa. The mine is regarded as a “flagship ore reserve”, but it hasn’t always been that way. Historical complications and the complex nature of the location has meant years of work to understand the geology. Leapfrog Geo has been an important aspect in improving the geological models within the mine’s geological team. This post highlights some of the challenges and how Leapfrog Geo proved to be a useful solution.
The mining industry has continued to be severely affected by difficult economic conditions and various other factors causing a sense of unpredictability in the industry. Hendrick Pretorius, South Deep’s Chief evaluator, believes that a considerable number of mines in South Africa are still using rudimentary 2D geological modelling programmes for mine planning. Mining companies do not have to have complex geology to benefit from using 3D modelling technology like Leapfrog, even mines with simpler geology can benefit from incorporating it into their mining operations.
- The complexity of the alluvial deposit meant it was essential to have an accurate geological model.
- The mine itself comprises of 16 reef horizons in a west-to-east fan formation that is up to 130m at its thickest and is highly faulted throughout.
- Keeping the geological model update ahead of the production rate.
- Remaining compliant to the mine plan.
For Deep South it was essential their geological model was continually up-to-date, to keep ahead of the production rate. So with the help of some in-house training provided by Leapfrog, geologists at South Deep equipped themselves with the knowledge to use Leapfrog Geo as an effective software tool. Leaving them an exciting opportunity to increase production effectiveness and reduce costs for South Deep.
No software customisations needed to be made to Leapfrog Geo for South Deep’s mine; all the design elements were capable of handling the mines complex geological modelling requirements. With Leapfrog Geo, a 3D model that closely resembles the realistic structure of a fault block can be produced. This ultimately makes the modelling process a far more dynamic and accurate one for geologists.
Some of the benefits for South Deep included:
- The ability to build three complete faults in a day whereas previously even building one fault in a day was a challenge. Also the 3D model more accurately reflected the nature of faulting, producing a fault block with a volume that could be rotated to isolate individual faults in it, for closer analysis.
- As new data becomes available Leapfrog Geo can dynamically update the model, compared to the digital terrain modelling programme that has to be completely reconfigured from scratch.
- All data in the one place – having all data in Leapfrog makes everything more integrated, accessible and secure.
South Deep is an inspiring example of how Leapfrog Geo is helping to further mining companies to become more efficient, accurate and resourceful. Building a geological model more than three times faster than the digital terrain program can- now that’s a job well done!


Cornerstones began assisting the University of Arizona on Mastodon Mine project in 2011. After an assessment and recommendations for stabilizations 2012, planning for work began. We hosted a series of training workshops to stabilize the collapsing structure. The last workshop occurred in 2015. The last timbers were set in place and the crushing mill was re-established. The project was not only about restoring the mine, but also focused on re-assembling parts of the timber frame that were still on site. New pieces were only added if an old piece was too far in disrepair.
The purpose of the project was to make the mine structure understandable to visitors. It has gone from a large pile of pick up sticks to a remnant of its former self. Now the mine reflects the mining process that occurred there.
You can see the mine for yourself if you take Lost Palms Oasis Road to Mastodon Mine Loop Trail in Joshua Tree National Park, California.


In a landmark move, mining giants Rio Tinto plc and First Quantum Minerals have joined forces to develop the highly anticipated La Granja copper project in Peru. This groundbreaking joint venture aims to unlock the immense potential of one of the world’s largest untapped copper deposits and establish it as a premier Tier 1 copper mine.
Located in the scenic Cajamarca region of Northern Peru, La Granja boasts a vast indicated and inferred mineral resource of 4.32 billion tons, with a copper grade of 0.51%. The combined expertise and capabilities of Rio Tinto and First Quantum Minerals position them as the ideal partners to transform this copper-rich site into a major global copper producer.
Under the agreement, First Quantum has acquired a majority stake of 55% in the project, investing $105 million. In addition, the company will contribute up to $546 million to fund capital and operational costs for the project’s development and feasibility study. Following the completion of this funding commitment, expenditures will be allocated proportionally based on each party’s ownership share.
With its majority ownership, First Quantum will take the helm in operating the La Granja project, with a primary focus on completing the comprehensive feasibility study. The collaboration between Rio Tinto and First Quantum Minerals promises to pave the way for a successful development phase and open new doors for copper production in the global market.
Rio Tinto’s acquisition of the La Granja Project from the Peruvian government in 2006 set the stage for this transformative partnership. Extensive drilling initiatives over the years have revealed a significantly higher resource base, positioning La Granja as a crucial addition to Rio Tinto’s expanding copper portfolio. This investment complements Rio Tinto’s ongoing development of the Oyu Tolgoi project, located in Mongolia. Oyu Tolgoi is recognized as one of the world’s largest copper and gold deposits, which, upon completion, will rank as the fourth-largest copper mine globally.
Furthermore, Rio Tinto’s Kennecott mine, based near Salt Lake City, Utah, serves as a world-class, integrated copper mining operation. Kennecott not only produces copper but also yields gold, silver, and tellurium as byproducts. The company has plans to extend the life of the open-pit mine beyond 2032 through pre-feasibility studies and is actively exploring the potential for an underground mine beneath the existing pit.
As the global demand for copper soars, driven by factors such as electric vehicles, renewable energy, and infrastructure investments, Rio Tinto and First Quantum Minerals are strategically positioning themselves to capitalize on this trend. While challenges such as declining ore grades, rising costs, and limited developmental opportunities persist, the La Granja project is set to play a pivotal role in meeting the growing demand for copper.
1. What is the significance of the Rio Tinto and First Quantum joint venture?
The partnership aims to develop the La Granja copper project in Peru, unlocking one of the world’s largest untapped copper deposits and establishing it as a premier Tier 1 copper mine.
2. Where is La Granja located?
La Granja is situated in the high-altitude region of Cajamarca, Northern Peru.
3. What is the current mineral resource estimate for La Granja?
The project boasts an indicated and inferred mineral resource of 4.32 billion tons at a copper grade of 0.51%.
4. How much stake has First Quantum acquired in the project?
First Quantum has acquired a majority stake of 55% in the La Granja project.
5. How will the project be funded?
First Quantum will invest $105 million in acquiring the stake and contribute up to $546 million for capital and operational costs related to the project’s development and feasibility study.
6. Who will operate the La Granja project?
As the majority owner, First Quantum will take on the role of operating the La Granja project, with a significant focus on completing the feasibility study.
7. What other notable projects is Rio Tinto involved in?
Rio Tinto is also actively developing the Oyu Tolgoi project in Mongolia, recognized as one of the world’s largest copper and gold deposits.


The Steel Feedstock Index (SFI) is a creation of the Australian Steel News (ASN) newsletter and is not found elsewhere in the sector. Whilst it doesn´t show the actual cost of buying steel in the Australian marketplace, it does show the month-to-month change in the combined price of the ingredients proportionally used in the making of steel via the blast furnace (BOF) method. First, the following information is obtained:
Iron ore – 62% Fe fines iron ore CFR China via SGX Group.
Coking coal – SGX Group TSI FOB Australia Premium coking coal futures.
Steel scrap – Platts TSI HMS ½ 80:20 CFR Turkey via London Metals Exchange
For the SFI calculation, we assume 1.6 m/t of iron ore plus 0.9 m/t of coking coal plus 0.15 m/t of scrap go into the steelmaking process. By combining the costs of these ingredients, we arrive at the Steel Feedstock Index expressed in USD per metric tonne.


Iron ore suffered one of the steepest weekly declines in history as steel mills in China dumped the commodity amid moves to curb steel production and a cooling property market. in China.
Once traded above 230 USD/ton in May, now iron ore price has plummeted to 100.8 USD/ton at the end of session 17/09. In the last week, prices have fallen 22%, according to S&P Global Platts.
The last time iron ore sold off like this was during the 2008 financial crisis, analysts said.
Beijing wants the steel industry to maintain output at more than 1 billion tons this year in an effort to reduce environmental pollution.
In the context of tense diplomatic relations between China and Australia – the world’s largest iron ore producer, Beijing actively restricts steel output as the year gets closer to the end of the year, according to analysts.
“It’s a pretty brutal policy. No one believes they will, but it looks like they will,” said Tom Price, an analyst at brokerage Liberum.
Although China’s crude steel output decreased by 8% and 12% in July and August respectively, in the first 8 months of the year, output still increased by 5% compared to the same period last year. This suggests more drastic output cuts if Beijing is to hit its target.
“The production cuts really seem to be working,” said Erik Hedborg, Iron Ore Analyst at consulting firm CRU. The need to buy more iron ore is gone.”
Production cuts from China caused steel mills to panic sell to reduce iron ore inventories. They sell iron ore contracts to the secondary market at a large discount.
Another factor affecting iron ore prices is the cooling of the property market in China. Construction activity in the world’s second-largest economy is expected to slow in the fourth quarter of 2021 and into 2022.
Analysts say the liquidity crisis at Evergrande – China’s most indebted real estate group – could lead to a credit squeeze for other companies in the industry.
Hedborg said: “The real estate sector is a big concern. The Evergrande incident is being closely watched in China as a leading indicator of future construction activity.”
The sharp drop in iron ore prices will also have a big impact on the mining giants. These companies have paid record dividends to shareholders thanks to the explosive profits from the iron ore business.
Shares in Anglo American and Rio Tinto fell the most in London’s FTSE 100 index on September 17 after UBS cut their earnings forecasts and advised clients to sell shares.
“Iron ore supply has been stable since early 2021 but will increase over the next few months if Vale and Rio Tinto are determined to meet their production targets. This will lead to an increase in iron ore inventories at Chinese ports and a sharper decline in iron ore prices over the next six months than previously forecast,” said UBS analyst Myles Allsop.
The drop in iron ore prices comes just as the price of another steel-making staple, coking coal, surged to a record in China due to tight supplies.
Coking coal prices traded at $577/ton on September 17, up nearly 60% over the past month. Supply disruptions related to the Covid-19 pandemic have affected coal imports from Mongolia, while Australian coal cannot enter China due to Beijing’s ban.


RUBBER BELT CONVEYOR FEATURES
It is the most durable Conveyor system that can withstand difficult working conditions among Belt Conveyors. Its working logic has the same features as other belt conveyors. In general, a roller system is used under the belts of rubber belt conveyors.
AREAS OF USE
Thanks to the rubber compound and powerful motors used, it can withstand more difficult working conditions than other belt conveyors. For this reason, it is a belt conveyor system that is often used in stone and coal quarries. It is also used for scrap material transfer. Due to their structure, these conveyors are resistant to harsh working conditions for many years.


KY Coal and Clay Mine Maps and Data, 1884 – Present
The Mine Map Information Center has for more than 30 years operated the Mine Map Repository for the Division of Mine Safety (DMS). This program is sponsored by the U.K. Center for Applied Energy Research in coordination with the Office of Surface Mining’s (OSM) Mine Map Repository in Pittsburgh and is operated out of the facilities of the DMS.
Currently the office has more than 175,000 paper coal mine maps on file and 183,000 mine records in the corresponding database. The maps range in date from 1948 to present, while the data spans 1884 to present. A fire in 1948 destroyed 30,000+ mine maps, but many have been replaced over the years. A few old maps prior to 1948 are on file. The office receives all active coal mine maps each year as well as any closure maps. Additionally, DMS receives every six months maps of mines in the proximity of oil and gas wells. Our major concern is the underground mine map. However, we also have a complete record of every surface mine maps on file. Coal seam data is also maintained for the Commonwealth.
If you would like to visit the facility to obtain mapping information or to view the map documents, contact us and make an appointment at 502-782-6307. If you would like to view coal mine maps on the Internet or download scanned maps and print mine reports, go to the
Mine Map Information System.
Visitors to the facility may obtain printed reports based on database searches or database extracts in digital format. The mine data may be accessed using any possible search criteria as well as location based on U.S. Geological Survey topographic maps.
Recently revised standards for Kentucky coal mine license maps are in effect. The standards cover both underground and surface mine maps. Please indicate with dates previous mining, current 12-month projections.
Underground Mine Maps
Recent updates include mine location data and coordinates, standardized "Data Block" (this does not replace your own title block) and other conventions. Again follow the guidelines on the transmittal letter and in the requirements document.
Surface Mine Maps
The biggest change is that DMS now requires a surface mine map that depicts dated mined-out areas for past, present and 12-month projections. Note that the latitude/longitude should be where the haul road intersects the coal seam at the works. DMS will no longer accept an MRP map for surface mine licensing. Follow the guidelines on the transmittal letter and in the requirements document.
Coal Seam Information


In composite realm, cermets has very importantplave with its properties and applications. In here, we explain the general properties of cermets and applications that cermets are used in engineering.
What Is Cermet?
Cermet is a composite material that obtained with ceramics and metals. Metals are used as matrix phase and reinforcement phase is ceramic. But if we take a look at the compositions, ceramic constitutes around 965 of whole material. Interphase bonding between ceramic and metal phases is done with relative solubility of metals and ceramics at elevated temperatures.
As you understand from its name that cermet is acronym of CERamic-METal.
There are two types of cermets; cemented carbides and oxide-based cermets.
What Is Oxide-Based Cermet?
Aluminum oxide and magnesium oxide are used as particulate phase in composite materials. In general, chromium is used as matrix metal, and other metals can be used as binders. The proportions of phases changes with the changing material and material properties. General applications of oxide-based cermets thermocouple shields, cutting tools for machining operations and mechanical seals.
What Is Cemented Carbide?
It is an also another type of cermet that a carbide is used as particulate in a metal matrix. General carbides that are used in cemented carbides are titanium carbide, tungsten carbide and chromium carbide. General matrix metals are nickel and cobalt.
Cobalt is used for tungsten carbide and nickel is used as matrix material for titanium carbide and chromium carbide. Like in other cermets, the composition of matrix phase is very low compared with particulate phase, which is around 5-15%. When the particulate phase decreases, hardness also decreases but tranverse rupture strength increases.
Tungsten carbide cutting tool applications in machining operations is very common. And other applications of tungsten carbide are drill bits, mining tools, hardness test indenters, rock drilling tools. These are major applications that hardness and wear resistance is very important.
Chromium carbide material has very good corrosion resistance and chemical stability. Compared with other cemented carbides, it is much more brittle. So chromium carbide is suitable for such applications like: bearing seal rings, spray nozzles, gage blocks and vale liners.
Titanium carbides are most important material for high temperature applications when nickel is used as binder or matrix. At elecated temperatures, oxidation resistance is very important feature. In gas turbine nozzle vane production, titanium carbide materials are generally used.
These are the general properties and applications of cermets in engineering. Do not forget to leave your comments and questions about cermets below. Your precious feedbacks are very important for us.


The mining sector is a large and complex industry, with four different classifications – underground, surface, placer, and in-situ – that require different equipment this means that mining is an asset-intensive industry. With many enterprises of different sizes operating in the market, this means that equipment maintenance can range from an administrative headache to downright daunting.
As equipment rarely changes or is replaced within a mining company maintenance processes, while they may seem like an annoyance, is vital. But how can maintenance be done effectively? With the help of a CMMS system.
What is a CMMS system?
CMMS stands for Computerized Maintenance Management Software, it is a centralized platform for businesses to organize their maintenance processes. CMMS systems achieve this through streamlining the work order process and scheduling, assigning resources, and storing information such as vendor information.
Reduced downtime through unforeseen breakdowns
Mining is a result-driven business that often works beyond the normal office hours most are used to, and due to the synergy of the equipment at work, a breakdown could lead to production stopping completely.
CMMS systems easily provide employers with a platform to schedule equipment maintenance at an optimal time to ensure production does not run overtime. Preventative maintenance also results in machines operating more efficiently without breaking down.
A good CMMS system will not only have the machines working efficiently but the employers as well. Implementing a CMMS system that can be accessed online and through a mobile phone allows employees to respond quickly to critical issues regardless of where they may be.
Maintain Health and Safety Compliance
Mining is considered a high-risk occupation therefore employee safety is of utmost importance. Machinery that has not been correctly maintained can be a safety hazard to employees and result in health and safety non-compliance, CMMS system ensures equipment is safe to handle and allows businesses to comply with occupational health and safety standards.
It is impossible to recall the large amount of information relating to mining assets. CMMS systems provide a cloud-based platform to upload and accurately store all maintenance-related information such as maintenance history that can easily be accessed by employees.
With a better understanding of how CMMS systems operate and the benefits that can be derived we now understand why it is vital for mining companies.


Hard Alloy Carbide Roller Press Hpgr Studs Pin for Crushing Iron Ore
Description of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
-100% virgin raw materials, stable chemical properties, long life circle.
-High hardness, good hardness, excellent wear-resistance.
-Various sizes and full types available
-Products can be customized upon requirement
Grade of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
Grades are exclusive grade we developed for rolling machine.
High impact toughness, high abrasion resistance, stable physical ability, the appearance of fine workman ship etc.
|Grade||Density g/cm3||Hardness HRA||T.R.S MPa||Performance & application recommend||Approx grades in China||ISO|
|MK4||15.1||90.0||1800||Mainly used as small buttons for percussion bits to cut soft and medium hard formations||YG4C||K01-K05|
|MK6||14.9||90.5||2600||For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring||YK05 KK06H||K10|
|MK8||14.7||89.8||2800||Suitable for coring crowns, electric coal drill bits, coal cutting picks, cone drill bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring||YG8||K20|
|MK10||14.7||89.0||2700||Mostly used as the buttons of small and medium sized percussion bits and as the inserts of rotary prospecting bits to cut soft and medium hard formations.||
|MK15||14.6||88.0||2750||Suitable to strips, conical buttons for rotary percussion-resistant, geological prospecting buttons, cut soft and medium hard formations||
|MK20||14.5||87.5||2800||Largely for the inserts and buttons of percussion bits and tricone bits to cut medium-hard, hard, and very hard formations.||
|Other grades and sizes can be offered as per customers' requirements|
Drawing of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
It is with long life time carbide stud pins
This equipment can do the field operation that not affect any construction on the ground.
This is available and best choice for crowd city areas, protecting buildings or historic site on the ground.
Application of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
Carbide stud pins normally used for
Grinding cement clinker,
Grinding cement limestone
Grinding cement bauxite, iron ore, etc
Production Process of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
To ensure the quality and the requirements of the drawings can be met before mass production
1st:, Start to prepare the RTP powder as per customer's requirement with our wet-grinding machine
2nd, Before mass production, do a trial pressing and sintering using mould,
3rd, Check the appearances and the sizes of the samples with micrometer, projectors etc.
Test process of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
1st,Mass production, press the raw materials to shape blanks,
Notes: all carbide stud pins blanks must be passed by semi finished inspection
2nd,Sinter blanks to finish (HIP) and finished products inspection,
Notes:10 sets of vacuum sintering furnace and 2set of HIP in the factory ensure the best quality and production capacity.
3rd,Cleaning/tumbling to make the carbide stud pins clean and nice surface.
Packing of Hard Alloy Carbide Roller Press HPGR Studs Pin for Crushing Iron Ore
step 1, wrapped carbide stud pins in paper to avoid carbide stud pins be broken
step 2, put the carbide stud pins in inner small carton box
step 3, put the inner box into outer carton and fill the carton with foamed plastic
step 4, wrap the carton with packaging tape


Slideshow of North Bulli Colliery, Coledale, NSW. Photos: The Sydney Mail February 1 1905
THE beginning of the coal mining industry in Coledale led to the expansion and development of the area.
Coledale’s first coal mine was opened in 1889 but was abandoned because of problems with underground water. This mine was redeveloped as the North Bulli Colliery in 1902 and was connected by rail to the Illawarra railway.
The North Bulli Colliery was officially opened in early November 1903.
The mine had an incline down the hillside and a railway siding. One hundred hands were employed.
Coal cutting machines were installed in the mine and production increased during 1904. The 50 coke ovens built in 1905 were increased to around 100 in 1908.
The North Bulli Colliery closed in 1926. Several attempts were made to re-open the mine and cokeworks during the Depression years but it was eventually abandoned.


“Installation of the 5G network at Gahcho Kué Mine is an important step toward our goal of creating a connected workforce. This will enable us to connect equipment and mobile devices and bring real-time access to information and data wherever our team members are at the mine, from the bottom of the pit to the logistics laydown yard.”
– Alex Mackay, IM Manager
Two different environments, same network technologies.
Monitor all mining operations in real time to respond quickly to critical events
Industrial location tracking and geofencing
IoT sensors monitor machines, vehicles, environment, and workers’ safety/health
360° situational awareness
Analytics for video feeds
Data connectivity from/to machinery, vehicles, staff and IoT sensors
Mission-critical Push-to-Talk and Push-to-Video communication
Galaxy provides Canada’s leading enterprise customers with complete remote communication solutions. We work hard to understand our customer’s needs and engineer solutions to deliver the best Quality of Experience (QoE) to ensure we are meeting budgets and timelines.


Why choose L.H. Lategan Mining Products?
LH Lategan mining products are designed to enhance industrial processes through ease-of-use, efficiency and cost-effectiveness.
Over the years, our range has grown to include the latest technical products available on the market, which has established us as a leader in the field of mining supplies and explosive accessories. Having been in successful operation since 1969, our clients know they can trust us to provide:
- Products that meet the needs of contemporary mining practices.
- Robust and dependable explosives accessories.
- Fast delivery times and excellent customer service.


2019 – Business Extension
Development and integration of two new divisions “Real Estate” and “Virtual Reality”
2014 – Business Development
Collaborating with formally licensed gold producers in Mexico to expand production in 2019 and beyond.
2013 – Mining Support
Preparing and planning for the expansion of the gold production of a diamond mining company in West Africa.
2009 – Project Management
Complete planning and support up to the start preparation in the Year of 2011 for a Diamond Mining Company in West Africa.
2008 – Registering of Golden Arrow Minerals
Initially established as a Company with limited liabilty and later, in 2010 converted into a company with private share holders.
We are commited to remaining a reliable trading partner and to build long-term relationships with everyone including governing authorities.
We operate in areas where we manage to carefully analizing potential risks. It is our objective to always adhere to governing rules, laws and regulations.


Brock University Professor Emeritus of Chemistry Ian Brindle can still remember witnessing a mesmerizing experiment that’s often conducted in high school chemistry classes.
The experiment involves putting an iron nail into a solution of copper sulphate and then watching dark, reddish-brown patches of copper metal adhering onto the nail.
While it’s an exciting way to grow copper, the fun stops when students are faced with scraping the copper off the nail. Not only is it tough work, but the copper becomes contaminated with iron in the process.
Fast forward a few decades, where Brindle points to a vat containing a copper-covered iron bar immersed in a leached copper solution. He picks up the bar, but instead of scraping the copper from the iron, Brindle merely wipes it off. The shiny, high-purity copper crystals fall from the iron effortlessly, like tender meat off a bone.
The copper in the solution came from an abandoned Ontario mine that has only tiny deposits of the element tucked away in many layers of rock.
Brindle has partnered with Destiny Copper Inc., a resident company in the Goodman School of Business’ Goodman Group-Venture Development in the Brock LINC, to develop new methods of producing copper. These methods have the potential to revolutionize the copper mining industry in Canada and beyond because they are simple and mobile.
“We’ve had interest from South America, Mexico and the U.S.,” says Dave Cousins, co-founder of Destiny Copper.
“We’ve already got Swiss copper traders that are willing to buy as much as we can produce, so the demand is there,” adds co-owner Greg Hanna.
The aim of Destiny Copper’s work is to offer a new way of extracting copper from small deposits of copper ore (crushed rock and other deposits) that most large-scale mining companies would consider to be too small to process using conventional methods.
The first step involves extracting and dissolving copper from rocks in which the mineral is contained. The company collects ore from the surface layer of test sites in several Ontario mines that are old or abandoned, which is then brought to the lab, where water and chemicals are filtered through the material to leach the copper out.
The leached liquid is a copper sulphate solution that Hanna affectionately calls “blue juice.” Once an additive is added and comes into contact with iron, it produces the granular copper.
The provisionally patented ‘granular copper process’ is what differentiates Destiny Copper from other copper processes.
“The discrete crystals don’t stick to the iron, so you can easily separate the copper once it’s produced from the iron,” says Brindle. “That gives you the opportunity of purifying the copper further into big sheets that weigh 125 kilograms, which can be sold on the international market.”
The game changer, says Hanna, is that this method uses virtually no electricity and requires far less equipment than conventional methods. Normally, sophisticated extraction equipment would be needed to remove the copper from the iron.
“It’s a far greener process than the current copper extraction technologies, which require huge amounts of electricity,” he says. “It’s the cleanest form of mining there could be.”
Hanna notes that as green technologies such as electric vehicles, solar and wind power generation gain traction, copper will be in even greater demand.
“These technologies take up to 12 times the amount of copper when compared to fossil fuel electricity generation,” he says.
Destiny Copper’s modular process makes it ideal to set up operations directly on site, a huge advantage for mines that contain small copper deposits not worthwhile for large mining companies, says Brindle.
“You’ve got high-value copper essentially marooned in the environment and nobody is going to spend the money to extract that copper using conventional techniques, so you’ve got to come up with something novel,” he says. “Because of the simplicity of the technology, you can load all of the equipment you need on the back of a flatbed truck; when the copper is mined out, you put everything back on the truck and go to the next place.”
The company is now working on additional funding to further refine the equipment needed for mobile operations.


The men were working 125m underground when they fell into a void, local media say.
Two miners who went missing after a mine collapsed in Australia have died.
Australia mine collapse: Two men dead at Dugald River zinc mine: Dylan Langridge, 33, and Trevor Davis, 36, were driving 125m (410ft) underground in Queensland’s Dugald River mine on Wednesday when the ground gave way, local media say.
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They fell 25m into a void along with their utility vehicle, a drill rig, and the drill rig operator.
The drill rig operator managed to escape and raise the alarm, before being treated for minor injuries.
Perenti, the global mining group which employed Mr Langridge and Mr Davis, said the pair’s bodies were found after a “significant” search operation at the mine near Cloncurry.
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“This is a devastating outcome and I want to extend my deepest sympathies and condolences to the families, friends, colleagues and loved ones of Trevor and Dylan, both of whom should have come home safely from work yesterday,” chief executive Mark Nowell said on Thursday.
Australia mine collapse: Two men dead at Dugald River zinc mine: The two men were reported to be “fly-in, fly-out workers”, a common practice in parts of Australia where staff are flown temporarily to remote work sites.
Mr Langridge joined Barminco, a Perenti company, in March 2020, Perenti said. He began working at the Dugald River mine later that year.
Mr Davis had worked at the mine since November 2021 after joining the company a year earlier.
Both worked as charge-up operators, a role that usually involves handling explosives and setting up blast areas for mining.
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All operations at the zinc mine were suspended during the search, according to mine owner MMG.
Rescuers worked all night using heavy equipment to gain access to the utility vehicle, and on Thursday morning MMG general manager Tim Akroyd said a mission had begun to recover it from below.
Two missing mine workers have been found dead in Australia after falling down a hole at a zinc mine in Queensland state.
The mine’s operator, China’s MMG, on Wednesday halted operations after two people employed by contractor Barminco fell down a hole that authorities said had happened because of a “ground collapse” at the Dugald River Mine near Cloncurry.
Rescuers confirmed Trevor Davis (36) and Dylan Langridge (33) were fatally injured after falling about 15 metres in a previously backfilled area, Australian mining services provider Perenti, which owns Barminco, said in a statement on Thursday.
Australia mine collapse: Two men dead at Dugald River zinc mine: Earlier on Thursday, a rescue team using drones and heavy underground mining equipment found the vehicle Mr Davis and Mr Langridge had been using.
“This is a devastating outcome and I want to extend my deepest sympathies and condolences to the families, friends, colleagues and loved ones of Trevor and Dylan, both of whom should have come home safely from work yesterday,” said Perenti chief executive Mark Norwell. Read more


Following on from the highly successful 40th celebration of the MilOps conference series attended by nearly 600 industry professionals, the 15th AusIMM Mill Operators Conference will be held in Brisbane, Australia. On behalf of the organising committee I would like to invite you to save the date and attend this flagship AusIMM event.
The conference will be held at the Brisbane Convention and Exhibition Centre from 23 – 25 June 2021.
Inaugurated in Mt Isa in 1978, this biennial conference aims to promote the sharing of knowledge in operating practices for mineral processing plants, including extractive metallurgy, process control and environmental issues. The 15th AusIMM Mill Operators Conference will provide the opportunity for plant operators, metallurgists, engineers and operational staff to learn, share and network with others in the minerals industry.
We look forward to your participation in the 15th AusIMM Mill Operators Conference 2020
David Seaman MAusIMM and Katie Barns MAusIMM
15th AusIMM Mill Operators Conference Co-Chairs


Sandstone is a sedimentary rock composed mainly of sand-size mineral or rock grains. Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the earth's crust.
Also asked, where is sandstone created?
Sandstone is a type of sedimentary rock. They are made up primarily of sand-sized grains of either rock fragments or individual minerals. The grain makeup within sandstone depends on both the type of source rock and the conditions and how far the pieces of the source rock traveled before forming the sandstone.
Where is sandstone made?
Sandstone is a rock comprising mostly of minerals formed from sand. The stone gains its formation throughout centuries of deposits forming in lakes, rivers, or on the ocean floor. These elements group together with the minerals quartz or calcite and compresses.
How is sandstone found?
Sandstone is a sedimentary rock composed of sand-size grains of mineral, rock, or organic material. Sandstone is one of the most common types of sedimentary rock and is found in sedimentary basins throughout the world. It is often mined for use as a construction material or as a raw material used in manufacturing.


At Double Diamond, safety is a top priority. Double Diamond is COR Certified, meaning we adhere to very stringent safety standards during our build, transportation, and installation processes. We have demonstrated time and time again that we can meet and exceed the safety practices on mine sites and oil sites across Western Canada. Double Diamond has a full time HSE Coordinator to ensure that all employees are following safe work practices and that safety is maintained as a top priority throughout the company. We work hard to maintain an excellent safety record and we are registered with IsNetworld.


The iron remover is divided into a flat magnetic separator and a flat iron remover. It is a device that can generate strong magnetic field attraction. It can remove the ferromagnetic impurities mixed in the material to ensure the safe operation of the crusher, grinder and other mechanical equipment in the conveying system, and can effectively prevent large and long The accident of the iron piece cracking the conveyor belt can also significantly improve the raw material grade. According to the method of unloading iron, it can be divided into various working modes such as manual unloading of iron, automatic unloading of iron and program control of unloading iron. Due to different use occasions and magnetic circuit structure, various series of products are formed.
1. Determine the iron removal effect of the iron remover in the actual production process. There are two major factors, one is the magnetic field strength of the iron remover itself, and the other is the correct installation method at the site.
2. The iron removal effect of the suspended permanent magnet separator is closely related to the height of the suspension and the thickness and thickness of the material. The lower the suspension of the iron remover, the better the iron removal effect, the higher the effect, the higher the thinning rate of the material. The higher the magnetic field strength of the iron remover, the better the iron removal effect. If you are inclined to install, you must find the angle and properly hang the iron remover. The lower the hanging height, the better, without affecting the normal running condition of the belt.
Users should choose the type of iron remover according to the characteristics of the site. Proper installation and suspension will have a great impact on the effect of the iron remover. In the actual application process, it should be used and maintained correctly to achieve the best iron removal effect. When using the permanent magnet self-unloading iron remover, the user should install it correctly according to the product manual.
(provided by Shenyang Building Materials Network) <
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As of 2019, GCM Industry and its affiliated companies have 5 advanced mining machine production bases and one production base under construction, with a total production area of 1,200,000 square meters, which can better meet more needs of global customers in the future.
Beginning in 1987, GCM industry has developed steadily and steadily in the field of mining machines, and has gradually formed a complete R&D, production, sales and service system.
Click the links below for detailed information about our areas of expertise and broad range of equipment offerings.
[img:uranium%20site_0.jpg|Mining operations underway at a typical uranium site]Johannesburg, South Africa --- MININGREVIEW.COM --- 22 April, 2008 - First Uranium Corporation – a resources company focused on the development of uranium and gold projects in South Africa – is to purchase and install an "off the shelf" acid plant to produce its own sulphuric acid.
4 BACKGROUND AND HISTORY OF URANIUM MINING IN AFRICA 4.1 Regional Context – Uranium Mining in Africa and SADC Uranium deposits are found throughout Africa and currently, exploration is being carried out in 30 countries on the continent, 10 of which are members of the Southern African Development Community (SADC).
System Integrator at Langer Heinrich Mine. University of South Africa/Universiteit van Suid-Afrika. View profile View profile badges View similar profiles. MARVIN KENNEDY /HOËSEB
Langer Heinrich Uranium Mine South Africa. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. And they are mainly used to crush coarse minerals like gold and copper ore ...
Important mining sites in South Africa include the Dominion Reefs project at Haartebeesfontein, owned by Uranium One and southwest of Johannesburg, Ryst Kuil in the central Karoo Basin owned by ...
Imouraren mine is the largest uranium deposit in Africa and world's second-largest uranium deposit. The mine is located in Imouraren, Niger. It is located 80km south of Arlit mine and is estimated to contain 179,000 tonnes of uranium deposits. French nuclear energy company Areva is the developer ...
Africa has considerable mineral deposits, including uranium. Exploration and mine development is proceeding in countries which have not hitherto supplied uranium. Gabon has been a significant uranium supplier in the past. Please note: The country papers on Namibia, Niger, South Africa should be consulted for information in those areas.
Southern Africa's Potential Southern Africa's uranium mining industry has also expanded to new territory with Paladin, the successful developer and operator of Langer Heinrich, having commissioned its second uranium mine, Kayelekera. Kayelekera is situated in northern Malawi, 575 km north of the capital, Lilongwe.
of South Africa (Fig. 1), uranium mineralisation occurs in fluvial sandstone-hosted tabular bodies in the Beaufort Group (Le Roux, 1993), often adjacent to or ganic mudstones or shales, or where there
Jul 25 2019· Issues at Operating Uranium Mines and Mills Africa Ltd announced that it signed an agreement on 18 January 2014 to sell a 25% joint venture equity stake in its Langer Heinrich uranium mining operation in Russian billionaire Victor Vekselberg's Renova Group made a joint bid with South Africa's Waterpan Mining Consortium for a mine
Mar 27, 2018· Langer Heinrich Mine Vacancies 2020 – 2021. Langer Heinrich Uranium (Pty) Ltd Vacancies 2020 – 2021. B2Gold Namibia Windhoek Vacancies 2020 – 2021 Epangelo Mining …
Langer Heinrich Uranium Mine, South Africa - Mining Technology. Langer Heinrich Uranium Mine is an open-pit mine in the Namibia Desert, about 80km east of Walvis Bay, Namibia. The uranium deposit was discovered in 1973 and the ...
Uranium production is an important part of the African economy, with Niger, Namibia, Libya and South Africa creating up to 18% of the world's annual production. Many African countries produce uranium or have untapped uranium ore deposits.
The company currently produces uranium as a byproduct of gold mining at its Great Noligwa mine in South Africa and expects to boost output when its Moab Khotsong mine opens. The company is also studying whether to upgrade a processing plant so that it …
Imouraren Uranium Mine - Mining Technology. The Imouraren uranium mine development project was launched in 2010. Rock layers above the uranium deposits have been Langer Heinrich Uranium Mine, South Africa.
View Abram Maqa's profile on LinkedIn, the world's largest professional community. ... South Africa Mining & Metals. ... Langer Heinrich Uranium Mine August 2015 – Present 4 years 3 months.
Uranium mining threatens South Africa's iconic Karoo. Environmental impact of uranium mining. The South African public can be forgiven to be rather in the dark about uranium mining. Despite its long and sometimes glorious mining history, uranium mining is a new thing. Past production always came as a by-product of gold mining.
Southern Africa's uranium mining industry has also expanded to new territory with Paladin, the successful developer and operator of Langer Heinrich, having commissioned its second uranium mine, Kayelekera. Kayelekera is situated in northern Malawi, 575 km north of the capital, Lilongwe.
The client was 's Sigma Colliery in burg in the far north of the Free State province of South Africa. During the contract period, Moolmans moved 38 million tonnes of coal and 165 million tonnes of overburden and performed a full mining service for .
Jun 22, 2016· Namibia has over six uranium mines including Rossing, Husab and Langer Heinrich. The Rossing mine is owned by Rio Tinto, the world's largest mining group, supplying power stations in Japan, France, the USA and the UK. The Langer Heinrich mine is operated by Langer Heinrich Uranium, a subsidiary of Paladin Energy, while Husab is owned by China ...
Aug 03, 2013· Troubled Australian uranium company Paladin mothballs Langer Heinrich uranium mine, in Namibia. Paladin mothballs Namibia uranium mine Creamer Media's Mining Weekly 25TH MAY 2018 BY: ESMARIE SWANEPOEL CREAMER MEDIA SENIOR DEPUTY EDITOR: AUSTRALASIA P ERTH (miningweekly.com) 27 May 18 – Dual-listed Paladin Energy on Friday confirmed that its Langer Heinrich uranium mine…
Western Cape]Pretoria, South Africa --- MININGREVIEW.COM --- 25 August 2008 - South Africa – which has the biggest uranium reserves in Africa and holds 7% of the world's uranium reserves – may cut down on its exports of the metal in order to ensure sufficient supply of fuel for its existing and planned nuclear power plants.
About Paladin Paladin Energy Ltd is an Australian-based global uranium leader focussed on maximising the valye of its 75% stake in the Langer Heinrich Mine in Namibia. Langer Heinrich is a globally signficant, life-long operation, having already produced over 40 million pounds of U3O8 to date.
The Rössing Uranium mine lies 35 km south of the property and the newly developed Langer Heinrich Uranium mine lies approximately 80 km to the east-south-east within the Namib-Naukluft Park ...
Apr 26, 2018· The residents of Karoo in South Africa were shocked to learn that more than 700,000 hectares of Karoo farmlands had been earmarked for uranium mining by the Australian company Peninsula Energy - as reported by The Ecologist in April 2016. This development would have wiped out years of painstaking recovery of the semi-arid plains and threaten the very existence of several rural …
Apr 09, 2020· When South Africa shut down its mining industry to contain the coronavirus, more than 450,000 workers were sent home in 24 hours. Getting them back will take much longer for …
Uranium mining in Namibia is of considerable importance to the national economy.In 2018, Namibia produced 10% of uranium worldwide, ranked as the 4th largest producer, behind Kazakhstan, Canada, and Australia.. Uranium is one of the six mineral resources that were declared "strategic" by the Namibian government.
Australian mining companies have a poor track record operating in Africa. Australian uranium company Paladin Energy has now put two of its mines into 'care-and-maintenance' and bankruptcy looms. But who cleans up the company's mess in Namibia and Malawi, asks JIM GREEN
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(OSM PA(DES-22)) State of PA: Professional Design Services. To provide professional design services, professional investigation, planning, design, design oversight, permitting services, feasibility studies, geotechnical, geophysical investigations, construction oversight, and other technical services as required, for the reclamation of abandoned mine lands (AML) and associated mine-water impacts. Services include, but are not limited to, surface mine reclamation, mine fire control, including characterizing coal mine fires and differentiating between previously burned and presently burning areas and recommending efficient and cost-effective reclamation approaches, mine subsidence control, closure of mine openings, waterline extension/water supply replacement, abandoned mine drainage (AMD) remediation, design of active and passive AMD treatment facilities, evaluation, operation, monitoring, maintenance, and/or rehabilitation of existing passive and active AMD treatment systems. Most of the projects are located in the Bituminous coal fields of Western Pennsylvania and the Anthracite coal fields of Northeastern Pennsylvania.
*Bid specifications not available for past bids.
Our nation-wide team looks for bids in every agency to ensure the most comprehensive coverage available. We are the lowest cost bid service provider nationwide, but we don't sacrifice quality for price.


The accident was the worst in an American mine since Dec. 19, 1984, when 27 workers died in a fire at the Wilberg Mine in Orangeville, Utah, and it came just four years after federal regulators enacted a sweeping overhaul in mine safety laws. That overhaul, the first in over three decades, came after 19 miners died in a series of mine accidents in West Virginia and Kentucky — including one that brought criminal charges against a Massey subsidiary.Just a month ago, the mine was found to not be in compliance with mining safety rules, including proper ventilation and mitigation of methane gas. Despite a massive overhaul of mine safety rules four years ago, companies are still skirting the rules, and enforcement by government regulators is anything but assured.
The explosion occurred about 3 p.m. Monday at the Upper Big Branch mine, 30 miles south of Charleston, in Raleigh County.
The mine, which employs about 200, is owned by the Massey Energy Company, based in Virginia, and operated by the Performance Coal Company.
Mine safety officials said that there were three groups of miners affected by the blast. One group consisted of nine miners who were leaving the site at the end of their shift in a vehicle known as a “mantrip.” Seven of the miners in the man trip were killed by the explosion while two others were injured and taken to the hospital by rescue workers.
A second group of 18 miners was said to be working a bit deeper in the mine, closest to the area where coal was actually being extracted. All 18 of them died.
A third group of four miners — the ones still unaccounted for — was even deeper in the mine.
The miners were all thought to be working more than 1,000 feet underground.
The explosion on Monday destroyed all communication lines inside Upper Big Branch, but Kevin Stricklin, an administrator with the Mine Safety and Health Administration, said there were two rescue chambers near the blast site. If the miners could reach them, the chambers were stocked with food, water and enough air to allow them to survive four days.
Mr. Stricklin said that officials did not think there had been a roof collapse, but that they did not know what had caused the explosion in the sprawling mine. Upper Big Branch, which cannot be seen from the road, has 19 openings and roughly seven-foot ceilings, federal safety officials said.
The mine had been fined more than $1.5 million, but had paid only a fraction of the fines imposed by the U.S. Mine Safety and Health Administration (MSHA).
Meanwhile, rescuers were attempting to drill three shafts into the mine to vent methane and carbon monoxide.


Marrak Civil and Mining is a new business developed on the back of the combined industry experiences and expertise of brother and sister duo Darren and Joanne. In its first six months, Marrak Civil and Mining has been successful in obtaining a supply agreement for plant dry hire under partnership with two other Indigenous-focused mining businesses. This opportunity has highlighted the strong combined capability of the business owners and the vast opportunities available to Indigenous businesses in the mining and civil sectors.
Marrak Civil and Mining will continue to grow its fleet in the coming years, offering sustainable dry hire services and experienced and safety conscious personnel to projects across the South West and adjacent regions.
We offer plant dry hire, and qualified and experienced personnel in the mining and civil sector. Our safety conscious and reliable operators have a combined 30 years of experience. Marrak Civil and Mining currently have a water cart and excavator. Our experienced qualified plant operators have white cards, mining and civil experience, and are reliable and safety conscious.


The challenge in working for government transparency is that you are always working against its opposite: opacity. What we don’t... View ArticleContinue reading
Upper Big Branch Mine Had Most Serious Citations Among Massey-owned W. Va. Mines
The Upper Big Branch Mine that suffered the most serious mining disaster since 1984 on Monday has received the most... View ArticleContinue reading
Other dangerous mines? Federal data can’t tell you
Monday’s explosion that killed 25 miners at Upper Big Branch Mine in West Virginia came at a mine that had been flagged by inspectors for a series of violations – 3000 since 1995 and more than 500 in 2009 alone.
How does that compare to other mines? Because of the way the federal government releases the data, we can't say.
Data on safety inspections is published in the Department of Labor’s Mine Safety and Health Administration (MSHA) Web site, where users can find information on mine safety, inspections and violations. But getting to it is the hard part ...


Read a Summary of the Event
SCHEDULE: Cocktail Reception 6pm; Dinner 6:45-7:20pm; Program begins 7:30pm
Harry M. (Red) Conger is President and Chief Operating Officer, Freeport-McMoRan Americas and Africa Mining
Talking Points Include:
Mr. Conger is responsible for management of the company’s North and South America copper mining operations, Tenke Fungurume minerals district in the Democratic Republic of Congo, and Climax Molybdenum Co. This includes nine mining operations in North America, two in South America, one in Africa and the associated downstream processing facilities. These operations employ more than 18,000 and have annual copper production of 3.6 billion pounds and annual molybdenum production of 70 million pounds.
Mr. Conger has 39 years of mining industry experience with Freeport-McMoRan and its predecessors and is considered a leader in safety, change management and production efficiency.
Tel: 602 email@example.com
7729 E Greenway Rd, Suite 300, Scottsdale, AZ 85260


The blasting engineer is the person who calculates how deep a drill rig needs to drill a hole, how much explosive needs to go into the hole so that there is a safe blast while at the same time breaking the rock sufficiently so it can be loaded by an excavator, taken to be dumped or a crusher, where it is further processed. The Blasting Engineer needs to be sure there is no one near the blast when he or she 'fires' it so no one gets hurt when the rock from the blast comes to rest. Technology and blasting assistants help. The blast has sensors placed around it to record the explosives breaking the rock.
Blasting Engineers in quarries help owners to blast safely so that the materials that are used to make houses, schools, universities, roads, hospitals, soccer stadiums, ports and airports can be obtained.
In open pit mines, blasting engineers make the pit a safe place to go while allowing the pit to go deeper to keep costs down by controlling vibration so that pit walls are not adversly affected by blasting operations. Minerals are then extracted from the fragmented rock which go in to manufacture smart phones, wind turbines, solar panels, medicines, medical equipment. I should say that the fragmented rock is crushed and processed further. Blasting can be optimised to minimise the energy required to crush the rock.
To day as you read this on your smartphone, laptop, the metals inside your device got to you with the help of a blasting Engineer. If you are in a building, he or she helped there too. Blasting is the first step in the receipe for turning copper ore into copper wire and rock into concrete
Drilling Engineers in the past used a hammer and a chisel to drill a hole - hit the chisel, rotate it a bit, hit it again with a chisel to create the hole for the blasting engineer to insert the gun powder to break the rock. To day the drilling engineer has a machine to drill the holes for the blasting engineer. Drilling and blasting software is used to position the holes in a safe and efficient postion to minimise drilling and explosive costs, mininimise the environmental impact of the blast whilst at the same to to fragment the rock.
To help the blasting engineer in his work, blasting software such as Rockmatewhich will help make blasting safer and cheaper


Features and benefits of Carrier vibrating feeders: Travel speeds up to 60 feet per minute. High temperature vibrating feeder designs available for handling materials up to 2000 deg. F. Choice of construction from carbon steel to metal alloys. Polished vibrating feeder trough and special coatings available for sticky products.
Anshan Heavy Duty Mining Machinery Co. Ltd. Is founded in 1994, which is the vibrating screen base in China and leading company in vibrating screen industry. Main products of we has manufactured are linear or circular vibrating screen, industrial crusher, vibrating feeder, If you need, welcome to contact us to know more!
Vibrating Feeder is a kind of linear direction feeding equipment, It consists of feed spout, vibration body, vibrating motor, damping device. It can feed material for belt conveyor, vibrating conveyor, bucket elevator, vibrating screen, crusher etc. The feed process of the vibrating feeder is ...
Screen and feeder that are applicable for various purposes from crushing plant to construction wastes recycle plant. There is various line-ups depending on applications and setting spaces. Grizzly Vibrating Feeder …
Vibrating Grizzly Screens & Feeders – screen and feed large aggregate material with low energy requirements; Natural Frequency / Two-Mass Vibratory Screens – energy efficient, higher consistency and speed; These heavy-duty vibratory screens are designed to handle a wide diversity of screening and classification tasks. Manufacturer has ...
As a family-owned business for nearly a century, Deister Machine Company, Inc., plays an integral part within the aggregate industry. Many of the world's largest producers prefer its high quality line of feeding, scalping and screening equipment.
With our highly reliable Vibrating Feeders and Screens, we have earned ourselves a respected reputation in mining and quarrying. Vibrating equipment supplied by JOEST is suitable for the most arduous applications, such as screening and conveying of hard rock, limestone and various kinds mineral sands and ores. Recycling & Environment
The J&H Feeder is a totally enclosed machine with a static housing and an internal stainless vibrating pan. The machine bolts directly to any J&H screen.. It is designed to increase the efficiency of a J&H screen by distributing the flow of material over the full width of its wire cloth.
Nantong United has always been an innovative pioneer in the development of vibration machinery technology, such as vibrating feeders, vibrating conveyors, vibrating screening, Vibrating fluid bed dryer, Vibrating fluid bed cooler. We now have more than 100 skilled and experienced employees. The management system has passed ISO9001:2015 standard certification.
Most often fed through either a pan or apron feeder, grizzly screens consist of an inclined or horizontal screen with parallel sets of grizzly bars that are held by spacers at varied openings depending on the size of the material being screened.
This Automatic Box or Drum Filling System with Vibrating Densifier can be a standalone station or used as part of an existing filling line. Surge hopper feeds material into the electric powered vibrating feeder which meters the material into a box or drum located on the electric powered roller vibrating table.Box or drum is vibrated or densified during filling.
Jul 28, 2016· ZWS Series Vibrating Feeder is mainly used to feed material into the primary crusher homogeneously and continuously. Meanwhile, it can screen the fine material and make the crusher more powerful ...
IQS Directory provides a comprehensive list of vibratory feeder manufacturers and suppliers. Use our website to review and source top vibratory feeder manufacturers with roll over ads and detailed product descriptions. Find vibratory feeder companies that can design, engineer, and manufacture vibratory feeders to your companies specifications.
In some high frequency vibrating screens the flow rate of the feed can be controlled, this is proportional to the 'popcorn effect'; if the flow rate lowers, the effect is also decreased. Limitations of the high frequency vibrating screen are that the fine screens are very fragile and are susceptible to becoming blocked very easily.
Vibratory bowl feeders are composed of a vibratory feeder bowl top and an inclined spiral track on which parts are placed and guided. From the track, the parts move into a line that takes them down the track to the bottom of the vibratory feeder bowl.
Syntron Material Handling provides material handling solutions for conveying, feeding, screening, elevating, vibratory flow aids, and mining controls of bulk product. Get an online quote from us or call directly at +1-800-356-4898.
Syntron Screening Feeders provide efficient, trouble-free operation for all types of screening applications. From coal to food processing, to plastics, and other processes, our Screen Feeders are employed to scalp, separate, size, de-dust & de-water bulk products. Get an online quote from us today.
Vibramech has over 40 years of vibrating equipment design and mineral processing experience, which enables us to supply screens, feeders, grease tables and drives best suited to our clients' requirements.
Vipro is a Specialist Company in the field of Vibration. We have a wide range of vibration products, Vibrating Screens, Vibrating Grizzlys, Vibrating Feeders, Diamond Industry Specific Vibrating Equipment and other vibrating equipment.
Providing solutions for over 25 years, JVI Vibratory Equipment engineers and builds vibratory feeders, conveyors, screens and spiral elevators. The JVI team designs equipment for integration with your process and material. Based in Houston, JVI uses its expertise in vibratory equipment and material flow technology to enhance your processes.
Eriez Vibratory Feeders & Conveyors. ... Benefits are many, including long screen life and no damping under loads. Inline screeners are also available. Vibratory Controls. Designed to provide a precise amount of vibration for vibratory feeders, Eriez offers a line of solid state Feeder Controls with state-of-the-art electronics at competitive ...
• Performing as a Feeder: All Kinergy Vibrating Screens can also perform the feeding function. Install the Kinergy Vibrating Screen under the outlet of the Bin or Silo. Use the electrical control to adjust the Screening unit's output from zero to the maximum TPH.
SMICO acquired Screens to add a well-known aggregate presence to its already full line of vibratory screeners, feeders and conveyors. SMICO currently manufacturers new parts and screens for Screens and can repair and support all …


Skills and experience
Tony brings a wide variety of experience in surface and underground mining projects gained in both Australian and international mining operations.
He currently leads a team of internal experts, consultants and contractors in a number of mining transformation projects across Newcrest’s global operations. These projects are focused on the use of new technology and innovative thinking to achieve step-change improvements in safety, costs and productivity.
B.Eng (Geological Engineering) – RMIT University
B. App Sci (Applied Geology) – RMIT University


Primary mobile crushing plant
Independent operating combined mobile crushing station
Mobile secondary crushing plant
Fine crushing and screening mobile station
Fine crushing & washing mobile station
Three combinations mobile crushing plant
Four combinations mobile crushing plant
HGT gyratory crusher
C6X series jaw crusher
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CS cone crusher
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Ultra fine vertical grinding mill
MTW european grinding mill
MB5X158 pendulum suspension grinding mill
T130X super-fine grinding mill
Micro powder mill
European hammer mill
GF series feeder
FH heavy vibrating feeder
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Wheel sand washing machine
Screw sand washing machine
antimony s special properties
Antimony - Wikipedia
Certain compounds of antimony appear to be toxic, particularly antimony trioxide and antimony potassium tartrate. Effects may be similar to arsenic poisoning.  Occupational exposure may cause respiratory irritation, pneumoconiosis, antimony spots on the skin, gastrointestinal symptoms, and cardiac arrhythmias.
antimony Definition, Symbol, Uses, Facts
Antimony: Antimony, a metallic element belonging to the nitrogen group (Group 15 [Va] of the periodic table). Antimony exists in many allotropic forms. It is a lustrous, silvery, bluish white solid that is very brittle and has a flaky texture. It occurs chiefly as the gray sulfide mineral stibnite.
Antimony (Sb) – Properties, ApplicationsTopics CoveredIntroductionApplicationsIntroduction Chemical Properties Physical Properties Mechanical Properties Thermal Properties Applications
Antimony Sb - PubChem
Antimony is a silvery-white metal that is found in the earth's crust. Antimony ores are mined and then mixed with other metals to form antimony alloys or combined with oxygen to form antimony oxide. Little antimony is currently mined in the United States. It is brought into this country from other countries for processing. However, there are companies in the United States that produce antimony ...
What is Antimony? - Definition, Uses FactsIntroduction to AntimonyChemical Background and Properties of AntimonyStudies Attributed to The Discovery of AntimonyThe Many Uses of AntimonyIf we step back in time, back to biblical periods (both A.D. and B.C.), compounds and minerals containing antimony were used for a variety of purposes. Today, the products containing antimony (or antimony compounds) are quite diverse. From ancient Egyptian mascara to the current production of flame-retardant materials, antimony is very useful. But what is antimony, why the name, what are its properties, and, more importantly, who discovered antimony? Let's tackle the answer to these questions...
Antimony Compounds - US EPA
Antimony Compounds 7440-36-0 Hazard Summary ... Physical Properties Antimony is a silvery-white metal that is found in the earth's crust. Antimony ores are mined and then either changed to antimony metal or combined with oxygen to form antimony oxide. (1) Antimony trioxide is a white powder that is very slightly soluble in water. (1) Antimony metal is a very brittle, moderately hard metal. (1 ...
Antimony is a metalloid. A metalloid is an element that has characteristics of both metals and non-metals. The metalloids can be found on either side of the staircase line on the right side of the periodic table (with the exception of aluminum, which is not considered a metalloid).
Tellurium - Element information, properties and
Tellurium is present in the Earth’s crust only in about 0.001 parts per million. Tellurium minerals include calaverite, sylvanite and tellurite. It is also found uncombined in nature, but only very rarely. It is obtained commercially from the anode muds produced during the electrolytic refining of copper. These contain up to about 8% tellurium.
Tungsten: Properties, Production, Applications
Due to tungsten's ability to keep its shape at high temperatures, tungsten filaments are now also used in a variety of household applications, including lamps, floodlights, heating elements in electrical furnaces, microwave ovens, x-ray tubes and cathode-ray tubes (CRTs) in computer monitors and television sets.
Antimony Definition of Antimony at
In French folk etymology, anti-moine "monk's bane" (from moine). As the name of a pure element, it is attested in English from 1788. Its chemical symbol Sb is for Stibium , the Latin name for "black antimony," which word was used also in English for "black antimony."
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Plant downtime due to equipment failure is a costly disturbance to operations. Luckily we’re working on new cost-effective and energy and water-efficient solutions.
Your car has conked out and it needs fixing. It hurts a bit. You need an alternate plan for getting from A to B. And, that new camshaft is so damn expensive! Maintenance costs are inevitable and are part of keeping any hard working machinery in good nick. But, it’s rarely a welcome expense.
It hurts for industry too when plant equipment and parts succumb to wear and tear – not just for the costly replacement of parts, but production losses due to the need to shut down operations for maintenance. In fact, a single shut down can cost well over $10 million in lost production time.
New solutions that can extend the life of critical parts and equipment used in mineral processing plants are understandably in demand. Not only can these solutions save the industry millions of dollars, they can also improve an operation’s environmental performance by significantly increasing energy and water efficiencies.
We’ve got a few clever solutions up our sleeves to combat plant wear and tear, and they are have been delivering great results to mineral operations around the world for years.
Capturing the power of a tornado in a tank
Many mineral processes rely on suspending materials in a mixing tank using massive impellers. The traditional equipment and process is not entirely efficient and problems often arise from mechanical failure, such as breakage of blades, shaft and gearbox, wear of impeller blades, bogging and scale build-up.
So we developed a better performing mixing tank system called Swirl Flow that improves the impeller. The solution, which can be retrofitted to existing tanks, simplifies and improves the process by mixing liquids and suspended solids to create a tornado‑like vortex within the vessel. Placing a single impeller at the top of the tank improves reliability, makes it easier to clean and prevents erosion to the blades. As it’s much more efficient, Swirl Flow is helping the minerals industry reduce carbon emissions and make millions of dollars’ worth of productivity improvements.
Our solution for mixing tanks creates a tornado effect to improve efficiencies.
Taking the energy-sapping ‘drag’ out of pumping
By reducing water content, power demand and pumping inefficiencies operations can make significant cost and environmental improvements.
That’s why we developed a solution to reduce friction or the ‘drag effect’ during pumping processes, which was adopted by Glencore’s Minara Resources at their Murrin Murrin nickel operation. The clever solution introduces a thin, uniform and long-lasting ring of fluid on the inside of the pipe so that thick material can be efficiently pumped without friction and at high production rates. By reducing the drag effect, mining operations can save millions of dollars on energy and water use each year, while boosting their productivity.
New collaboration to come up with more solutions
Building on our track record in fluids engineering, we’re continuing to tackle the challenge in a new collaborative project involving Callidus Welding Solutions, Deakin University, Newcrest Mining and Murrin Murrin Operations.
Announced by Jobs and Innovation Minister Michaelia Cash last week, the project has received Federal Government funding, and is seeking to extend the life of turbines for use in high temperature and pressure environments like autoclaves used in gold and nickel processing.
If successful, it could help to save the industry millions of dollars.


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Wilco Technologies is focused on providing innovative solutions to the mining sector. Our aim is to supply quality products that provide our clients with effective solutions for underground strata control. The Trajectaflex Resin Firing System was first trialled at BHP Billiton’s Olympic Dam mine site in February 2005. Efficiency and safety were key drivers to improving resin set bolting cycle times.
Wilco Technologies draws from 18 years first hand experience in underground hard rock development mining. Its Managing Director, Michael Williams, has a sound knowledge and experience in the field, having been through the full cycle of development mining.