Mining Equipment Blog

Monday, December 26, 2011

Shafter Silver Mine, United States of America

Shafter Silver mine is located in Presido county of southwest Texas, US. The mine is 100% owned and operated by US mining company, the Aurcana Corporation. It will be the second largest silver producing mine in the US and 14th largest in the world once it begins production in 2012.

The mine was acquired by Aurcana Corporation from Silver Standard Resources in July 2008 at a cost of $38.7m. Past owners of the mine included Presidio Mining (1881-1926), Gold Fields Mining Corporation (GFMC, 1926-1977) and Rio Grande Mining Company (1977-1994). Aurcana Corporation is currently redeveloping the mine.

The prefeasibility and full feasibility studies of the redevelopment were completed in June 2009 and September 2010 respectively. The equity financing for the project was completed in December 2010.

Reserves of silver at the Shafter mine

The proven and probable reserves at the Shafter mine as of September 2010 stand at 19.8 million ounces (moz) graded at 7.78oz/t silver. Measured and indicated resources are estimated at 24.6moz graded at 8.49oz/t silver. Inferred resources are estimated at 22.8moz, at an average grade of 10.52oz/t silver.

Geology and mineralisation of the Shafter silver mine area

"Shafter Silver mine is located in Presido county of southwest Texas, US. The mine is owned and operated by Aurcana Corporation."

The Shafter deposit was discovered by GFMC between 1977 and 1982 while carrying out a systematic surface drilling programme. It is classified into five exploration blocks along its east-west curve. The Shafter mining district hosts dikes, sills and rocks belonging to the Tertiary age group.

The mineralisation occurs in veins and manto type ore bodies in the lightly dipping beds of the Permian Mina Grande Formation (PMGF) which spans to a strike length of 4.8km.

Minerals such as silver, lead and zinc concentrates are hosted in the upper layers of PMGF as carbonate replacement deposits (CRD) formed due to the encroachment of dikes and sills.

The ore extracted from the mine hosts oxidised argentite and cerargyrite with conglomerations of quartz, calcite, goethite and lesser dolomite, hemimorphite, willemite, anglesite, galena, smithsonite and sphalerite.

Production rates and mining methods used at the Texas-based deposit

Production at the Shafter mine will commence in 2012. The mine is expected to produce 3.9moz of silver equivalent in the first two years.

The property was historically mined using underground mining techniques. It reported 35moz graded at 15.24oz/t of silver production between 1883 and 1942.

The development of the Shafter mine began in January 2011. The underground mining operations were recommenced in February 2011. All permits necessary to restart the production were obtained in November 2011.

The development works include tunnel rehabilitation, ball mill foundations, renovation of filter presses and construction of offices at the mine site. The works also include installation of two leach tanks, Merrill Crowe equipment and a 300ft deep ramp. Underground production equipment will be delivered to the mine site between December 2011 and April 2012.

The construction work is scheduled for completion in May 2012.

American Electric Power (AEP) is currently installing a new north to south transmission line parallel to the existing 69kV electric line at a cost of $1.2m to supply electric power to the mine and processing facility. The installation is expected to be complete by May 2012.

Ore processing

The ore stockpiled at the surface of the mine will be transported to the 525,000tpa processing plant by 30t haul trucks to carry out the crushing, grinding, leaching and smelting process.

"The mine was acquired by Aurcana Corporation from Silver Standard Resources in July 2008 at a cost of $38.7m."

The processing plant was initially designed for a throughput of 900tpd and was increased to 1,500tpd capacity in November 2011.

The ore will be crushed into fine ore in two stages using a jaw crusher and a cone crusher. The crushed ore will be fed to the grinding circuit and ground in a ball mill which comprises a self-cleaning trash belt magnet, consociated pumps, tanks and instrumentation.

The ground ore will be conveyed to the leached circuit to undergo cyanide leaching process and generate pregnant leach solution (PLS) and filter cake.

The filter presses will reclaim the PLS and filter cake from the leached circuit and convey them to the Merrill-Crowe Zinc Precipitation Circuit.

Silver is precipitated in the Merrill-Crowe system by adding zinc dust. The precipitates are transferred to a smelter which separates the silver from zinc and produces pure silver doré bars for export.

Cerro De Maimon Copper and Gold Mine, Dominican Republic

Cerro De Maimon Copper and Gold Mine is located 70km northwest of Santo Domingo in the Monseñor Nouel Province in the Dominican Republic. The mine is 100% owned and operated by Australian company Perilya.

It was initially owned by Falconbridge Dominicana and was later acquired by the GlobeStar Mining Corporation (GMC) in April 2002. Perilya acquired GMC in January 2011.

Pincock Allen and Holt (PAH) was contracted in August 2003 to conduct feasibility study for the mine. The environmental licence was sanctioned in June 2004. Construction of the mine began in December 2006 and was completed in October 2008.

Feasibility studies to develop an underground mine and commission a separate zinc circuit are scheduled for completion in 2012.

Reserves of copper and gold

Proven and probable reserves at the Cerro De Maimon mine's sulphide ore stand at 5.3 million tons (mt) graded at 2.2% Cu, 0.85g/t Au and 27.6g/t Ag. The mine's oxide ore contains 901,000t of proven and probable reserves graded at 1.58g/t Au and 26.9g/t Ag.

Measured and indicated resources (sulphide and oxide ore) of the mine stand at 10.19mt graded at 1.44% Cu, 0.8g/t Au, 23.8g/t Ag and 0.99% Zn. The inferred resources are estimated at 379,000t graded at 0.82% Cu, 0.7g/t Au, 21.1g/t Ag and 0.87% Zn.

Geology of the Monseñor Nouel Province

"Cerro De Maimon Copper and Gold Mine is located northwest of Santo Domingo, Monseñor Nouel Province, Dominican Republic." SBM can supply you gold mining machinery for processing gold mineral resources. Gold mining machinery mainly includes gold crusher, gold mill, gold feeder, gold vibrating screen, gold belt conveyor etc.

The Cerro De Maimon is the largest volcanic massive sulphide deposit in the Maimon Formation which trends 70km along northwest to southeast of Dominican Republic.

The Maimon Formation contains metavolcanic and metasedimentary rocks including mafic, intermediate and felsic volcanic rocks belonging to the early Cretaceous age.

The deposits at the mine comprise massive to semi-massive copper-gold-zinc sulphide zone, overlaid by gold-silver oxidised gossan cap. They are 200m wide, 1000m long and 40m thick near surface.

The average thickness of the deposit is 12m. The massive sulphide zone is formed due to the venting and precipitation of the hydrothermal fluids on the seafloor, in the Caribbean volcanic island arc.

The oxidised gossan cap is formed due to the weathering of massive sulphide zone.

Mineralisation and production at Cerro De Maimon

Mineralisation at the massive sulphide zone occurs in the schists of pyrite, chalcopyrite, sphalerite, bornite, tennantite, tetrahedrite and galena.

The oxidised gossan cap contains goethite bearing gold and silver precipitates along with quartz, sericite, chlorite, minor calcite, barite, chalcocite and covellite.

Production at the Cerro De Maimon mine began in 2008. The mine produced 20.168 million pounds of Cu, 15,900oz of Au and 652,200oz of Ag in 2010. It is expected to produce 229 million pounds of Cu, 130,000oz of Au and 4.1moz of Ag between 2008 and 2017.

Open-pit mining and processing of ore at the Cerro De Maimon copper and gold mine

The deposits are mined using conventional open-pit excavation methods including drilling, exploring, blasting, loading and hauling. Hydraulic excavators, articulated and rigid body trucks are used to carry out mining operations.

"It was initially owned by Falconbridge Dominicana and was later acquired by the GlobeStar Mining Corporation (GMC) in April 2002."

The ore extracted is transferred to the appropriate sulphide or oxide ore stockpiles for processing.

Lyntek Engineers and Constructors was contracted in October 2004 to design and build two separate processing plants for treating sulphide and oxide ores. Both plants share the same crushing and conveying system.

The sulphide ore is passed through a 1,300 tons per day (tpd) flotation circuit and subsequently to a re-cleaner flotation column. The ore is grounded to 150 microns in the primary ball mill, which transfer the ground ore to secondary regrind mill for further grounding to 35 microns.

The ground ore is thickened and filtered in the flotation column to decrease the final moisture of the concentrate. It is finally transported to smelters.

The run of mine ore extracted from the gossan zone is ground in a ball mill circuit. The ground ore is conveyed to a conventional 700tpd cyanide mill to undergo cyanide leaching in a counter current decantation (CCD) circuit.

A gravity separation circuit receives the solution from CCD circuit and removes coarse grains and sulphides. The filtered solution is transferred to the Merrill-Crowe zinc precipitation circuit which recovers gold and silver dore bars for export.

Transportation and handling

The copper, gold and silver concentrates are loaded into haul trucks and transferred to the port of Rio Haina situated on the southern coast of the Dominican Republic for exportation to international customers.

From: Market Sectors

Mining Applications

Tuesday, December 13, 2011

Mobile asphalt plant

The mobile crusher asphalt equipment in a single process unit thus eliminating process heat loss due to material transportation. The asphalt minerals also benefit from the conducted heat from the drum shell thus effecting further savings.

mobile-asphalt-plant-300x225

Features of mobile asphalt mining equipment

1. Modern Wet Mix Macadam Technology.
2. Produces High Quality Mix.
3. Portable or Stationary.
4. High Production Rate.
5. Easy to Operate.
6. Highly Accurate Aggregate & Additives Feeder.
7. Manufactured as per MORTH Specification.
8. All components used in the plant are of top quality, with ISI Certification wherever available.
9. All moving parts and electrical parts of wet mix plant are provided with safety covers.
10. Ease of Lubrication and dismantling has been built into the design for efficient maintenance and repair.
12. Manufacturing is done with advance, internationally recognized techniques.

Mobile asphalt mixing machine

This kind of mobile asphalt mixing plants and equipments is widely used for producing asphalts, known as a type of industrial materials that do play an essential role in nowadays construction and maintenance work of asphalt roads.

We are always working to provide you with latest technology and world class standard mobile asphalt mixing machine. our asphalt mixing plants & equipments has been acclaimed worldwide. Totally dedicated to full customer satisfaction we strive for the best in terms of sales and service.

Thursday, December 8, 2011

Nordberg HP4 and HP5 Cone Crushers from Metso

The Nordberg HP5 follows the successful HP4 as the second model of an all-new range of high-performance cone crushers, benefiting from the

very latest in Metso crushing technology. Its heavy duty design derives from our 70+ years of experience with the Symons cone crusher, known worldwide for its rugged construction and application versatility. Labor-saving features such as hydraulic setting adjustment, tramp release and cavity clearing recall the innovative Nordberg Omnicone and first generation of Nordberg HP crushers. The HP4 and HP5 achieve new heights with unique features that produce the highest reduction ratios, ease of operation and low maintenance requirements.
Highest performance
The HP4 and HP5 cone crusher enable you to produce much finer products with fewer crushing stages, thereby lowering costs and saving energy. With a combination of optimized speed and large throw, HP4 and HP5 provide the highest reduction ratios of any current cone crusher. Due to their highly efficient crushing action, the HP4 and HP5 have high power utilization per cone diameter. As a result, you save twice with lower energy costs per ton of crushed end product and with lower recirculation load.

Higher cavity density improves crushing action for end products with more consistent gradation and superior shape. The new crushers maintain the proven threaded rotating bowl design. Comparative tests show equalized wear and more consistent setting around the entire circumference of the crushing chamber. Also the use of a newly designed tramp release system, with fixed return point, ensures that the crusher setting is maintained even after passing a piece of tramp iron.

Less downtime
Another way the crushers deliver is less downtime and increased operator confidence. Dual-acting hydraulic tramp release cylinders let the HP4 and HP5 pass tramp iron that would stall, or damage, many other crushers. If the jaw crushers does stop under load, the dual-acting cylinders provide a large clearing stroke, independent of liner wear, to quickly clear the crushing cavity.

An advanced fastening system for the mantle and bowl liner makes backing material unnecessary, and makes liner changes faster. When liners are changed or the crusher is reconfigured, the same hydraulic motors that rotate the bowl for setting adjustment will rotate the bowl completely out of the adjustment ring threads, greatly simplifying liner replacement. A new fixed counterweight guard protects the counterweight and seals out dust.
Easy to maintain
Bronze bushings used throughout provide superior load capability in the dusty, high-shock crushing environment. They cost less than rolling element bearings and are easy to replace in the field with normal tools. The HP4 and HP5 are easy to disassemble. All components are accessible from the top or side. The bowl and head are easily removed with no interference fit.

Versatility
Due to their strength, speed range and ease of converting from coarse to extra fine applications, the HP4 and HP5 provide superior application flexibility.

  • Save stockpile space by re-crushing excess or slow moving products without an intermediate crushing stage.
  • Converting from coarse to extra fine application and back again just by changing liners and rpm.
  • Liner and rpm combinations go from secondary applications to sand manufacturing.

Asset Protection
The new tramp release design also protects the main frame by smoothing out the impact forces and returning the bowl to its original position after passing tramp iron. Inside, a new fixed guard protects counterweight and seals out dust. An optional cover around the crusher protects employees from casual contact with adjustment and tramp release mechanisms. It also helps protect the workplace with reduced dust emissions. The environment benefits too from the advanced fastening system for mantle and bowl liner that do not require backing material.

Why Nordberg HP4 and HP5 Cone Crushers?

  • Highest performance
  • Less downtime
  • Easy to maintain
  • Versatility

Tuesday, December 6, 2011

Coal processing equipments in South Africa

South Africa is not only rich in metal mining, but also rich in the nonmetal mining resources. For example, the coal reserve is the seventh of the world. Now South Africa is one the chief coal production countries, it is the fourth largest exporting country of coal and it is also the leader production country of liquid fuel made of coal. So coal crusher for sale in South Africa has big market. With more investors focus on the South Africa coal industry, Double has won more and more gaze from these investors.

Coal-processing-equipments-in-South-Africa[1]

Coal Processing Equipment
South Africa coal processing equipments offered by Double are mainly jaw crusher, impact crusher, hammer crusher, ball mill and LM series grinding mills and feeder, screens and belt conveyors, etc. Many producers produce coal aggregates, the coal crushing plants are able to satisfy their requirements. Many producers produce coal powders or process coal ash; in this case, the coal grinding machineries are very important.
Coal crusher plants

The commonly process of coal crusher plant in South Africa are similar with each other. Jaw crushers crush big coal lumps to small ones when they dig out from well or from deposits. It is really a easy work for Double jaw crusher. Actually, Double jaw crushers can be used to crush numerous mining ores and different stones, such as granite, marble, basalt, gravels, limestone, gypsum, clay, manganese ore, chrome ore, iron ore, gold ore, copper ore and zinc ore and so on. As to the impact crushers, if the raw coal size is not very big, they can crush the lumps to small particles directly; if the raw coal size is big, impact crushers are used behind the jaw crushers. Though the application of impact crushers is wide, but impact crushers should used in crushing soft materials. If the coal deposit is small and producers just want to build one small coal production line in South Africa, Double hammer crushers are really good choices. Also, the output size of hammer crusher is quite small and adjustable, no other better machines are better than them in this function.

Coal grinding process

In the coal grinding process, ball mill and LM series grinding mills  are widely used. It is well-known that many factors must be cared when producers grind coal powders, for example the inflammability. Double LM series grinding mill and ball mill well solve these problems. And they are really high performance and price ratio products.

Till now, Double has many coal crushers and coal grinding mills used in South Africa. Though the scales are not very large, they do make many more South Africa people know Double. And we do believe our service and our products will help us enlarge our market in South Africa in the near future.

If you are one investor and plan to invest in South Africa coal industry, just be free to contact us; if you any problems about the coal crushing plants just be free to contact us. You can chat with our engineer on-line, the answer will be shown you immediately; you could also leave your email address with us, we will get in touch with you within 24 hours.

 

Gypsum Processing Equipments In Mauritania

Sunday, December 4, 2011

Steel structure mining processing plants

Tanzania is rich is many kinds of mining resources, such as the gold resources, coal resources, iron ore resources and limestone and so on. These rich mineral resources attract a number of investors invest in Tanzania and build many Tanzania mining ore crushing plants every year.

Steel-structure-mining-processing-plants-[1]

Double has helped many customers build plenty of mining ore processing plants in Tanzania, for example, we help customers build mobile crushing plants, fix mining ore crushing plants on cement foundation and crushing plants on steel structure, which greatly help customers save time to build the foundation.

The advantages of Steel structure machine

Steel structure foundation belongs to movable crushing plants, but it is not as flexible as the mobile crushing plants. Compared with the cement foundation, it has many advantages.

With the development of modern mining industry, many customers would like to save the cost of investment and the time to build foundation. To satisfy these customers’ requirements, Double R&D team spend a lot of time to design the steel structure that fit for Double mining ore processing equipments, such as Double mining ore jaw crusher, Double mining ore cone crusher, Double mining ore impact crusher and Double vibrating feeders, vibrating screens, etc.

By using these steel structure mining processing plants, producers just need to build simple foundation, it do greatly save the time to transport materials to build cement foundations. Supposing building cement foundation will spend three months, using the steel structure mining ore processing plants will save at least one month. Meanwhile, good cement foundations do cost a lot of money, greatly increase the invest cost. So by using steel structure, investors can get return earlier.

Steel structure mining processing plants

On the other hand, many mining working sites environments are very bad; producers have to spend a lot of time to making working sites, they use excavators dig the mountain to make suitable platform. It does bring a lot of troubles to investors. But if producers adopt Double steel structure, these problems are easy to be solved.

Meanwhile, the steel structure can be disassembled. Once one mining deposits work out, producers can disassemble the plants and transport to another deposits easily. And they can run the new mining ore crushing plants quickly.

Comparing with Double mobile crusher plant, the flexible of steel structures have many limits. But it is really good choice for many customers. And it is cheaper than the mobile crushing plants.

Tanzania mining ore crushing industry

If you plan to invest in Tanzania mining ore crushing industry, if you are interested in the steel structure crushing plants, just be free to contact us.

Chat with our engineers on-line, you can get answers immediately; leave your email address or your phone number, we will get in touch with you within 24 hours. We would like to help you solve your problems with you together.

Tanzania Mining Crushing Plant

Tanzania mineral resources are abundant; there are eight greenstone belts. Million tons of gold are fond in the history. Now the mainly proven mineral reserves are as followings:
Diamond reserve is about 2.5 million tons (content 6.5 carats/tons); gold reserve is around 800000 tons, there are 324 million tons of coals, 130 million tons iron ore, 10 million tons of phosphate, etc. Most of the mineral resources are not yet mined beside gold. It does be good chance for investors to build mining ore crushing plants in Tanzania.

Tanzania-Mining-Crushing-Plant[1]

Tanzania Mining Distribution

In Uluguru province, rhabdophane and titano-magnetite ore are fond in Wipu and Kisaki of Morogoro Mountain. The reserves of titano-magnetite in Kisaki is estimated of 20million~40 million tons, the grade is quite appreciable. Also gem, graphite and quartzite are found in Kisaki
The mining deposits in northwest zone of Iringa province are about 50 meters in thickness, along the TAZARA Railway. So it is really a good invest environments.
A lot of coal mines are fond in Liganga. And one 400MW heat power station are promised to built here. It bring great demands of coal. So investors can benefit from the problem greatly if they could build coal crushing plants here.
The famous copper mines locate in Kigugwe. Here the copper content is about 1.5% and latest data shows that it may reach to 4.0%.

Tanzania Mining Crushing Plant

Double is one professional mining crushing equipments and mining ore powder grinding mills manufacturer in China. Our mining ore processing equipments are very popular in Tanzania, For example, Double PE series jaw crusher, impact crusher, vibrating screens, vibrating feeders and cone crushers, MTM series grinding mills, MTW series grinding mills, ball mill, hammer mill and some other matched equipments are very hot.
Till now, we help customers build many mining ore crushing plant in Tanzania, such as coal crushing plants, copper ore crushing plants, iron ore crushing plants and quartzite crusher plants, etc. Now many of the mining ore crushing plants in Tanzania have been started to run. Some are still in building. Once all of the crushing plants are running, many more investors that invest in Tanzania mining industry will know Double better.

Tanzania mining crushing industry

If you are also interested in Tanzania mining crushing industry, if you have any questions about building one crushing plants in Tanzania, do not hesitate to contact us. We would like to help you solve your problems with you together.
Chat with our engineers on-line, you can get answers immediately; leave your email address or your phone number, we will get in touch with you within 24 hours.

Friday, December 2, 2011

Crusher plant production and maintenance

The production line of crusher plant mainly consists of Vibrating Feeder, Jaw Crusher, Impact Crusher, Vibrating Screen, Belt Conveyor, Electric Control Box, etc. Double equipment design different production lines ranging 50 t/h to 500 t/h by combining different models of equipments also matching Cone Crusher, Bag Dust Catcher, etc. to satisfy different customers’ technological requirements.

Crusher-plant-production[1]

Crusher plant maintenance

Convenient maintenance is so important in the quarrying crusher plant industry. Maintenance can be defined as working on something to keep it in a functioning and safe state and preserving it from failure or decline. Maintenance activities at quarries range from the maintenance of machines, equipment and vehicles to the keeping of roadways on site in good order, attending to such matters as providing edge protection and securing excavations.

It’s important to keep structural costs down, to design for ease of maintenance and operation, and to combine best practices with advances in fabrication and erection.

Best installation for crusher plant

In mining operations, the layout of crushing plants and ancillary equipment and structures is a crucial factor in meeting production requirements while keeping capital and operational costs to a minimum.Since the crushing plant’s structure and enclosure can represent the largest single cost element in a primary crushing plant, it is imperative to optimize these structural and construction costs to suit the life of the operation.

The fundamental goal for the design of a crushing plant is an installation that meets the required production requirements, operates at competitive cost, complies with today’s tough environmental regulations, and can be built at a reasonable price despite the rising costs of equipment, energy and construction labor.

Tuesday, November 29, 2011

Nickel beneficiation process

nickel-ore-processing-plant-300x225Nickel ore is primarily divided into sulfide copper-nickel mine and nickel oxide ore, whose ore dressing and processing techniques are entirely various.

beneficiation Procedure nickel oxide ore presently utilized crushing and screening processes to pre-remove bulk rocks with weak degree of weathering and low nickel ore.In quarry nickel the nickel within the nickel oxide ore frequently scattered in gangue minerals within the type of isomorphism and their grain sizes are extremely fine, nickel oxide ore can’t be enriched by mechanical dressing techniques. On the contrary, they should be only sent for direct smelting.

Nickel ore process

Nickel Ore Mining procedure in South Africa Nickel Ore Mining consists of preparation for mining and extracting of nickel extract. Consists of the activities of separating and sorting the nickel ore until it becomes guli (shots) within the type of ferro nickel and also the use of nickel which can’t be separated administratively from the mining of the nickle.

Within the both nickel ore beneficiation procedure of sulfide copper-nickel mine and nickel oxide ore, nickel ore crushing and grinding are needed. Cs series cone crusher is widely utilized for nickel ore crushing. You will find regular cone crusher and brief head cone crusher. Both them have been utilized as nickel ore crusher. Following crushed by cone crusher, the supplies should be grinded by rod mill and ball mill prior to becoming sent to flotation. Vibrating screen is utilized to separate various sizes of nickel ore. The screening mining equipment is also essential for nickel ore crushing and grinding mill..

Nickel extraction and purification

Main nickel is produced from two extremely various ores, lateritic and sulfidic. Most sulfide ores are processed by utilizing pyrometallurgical methods to create a matte for further refining.

Throughout nickel processing, nickel is extracted from its ores by conventional roasting and reduction processes. Nickel ore is stockpiled in the nickel plant. It’s firstly fed into a SAG mill feed bin, then convoyed to SAG mill for main grinding. The grinded supplies pass to regular cone crusher after which brief head cone crusher for further grinding. The crushed particles are passed to a vibrating screen for separation. Fine particles move to fine ore bin, whilst big particles return to cone crusher for regrinding. The fine nickel ores move from fine ore bin to rod mill after which to ball mill whilst adding xuanthate and lime.

The nickel grinding procedure yields usually a metal of higher than 75% purity, that is needed for nickel liberation. The nickel ore particles that are fine sufficient following grinding will pass to flotation procedure for magnetic separation and refining.

Sunday, November 27, 2011

Copper Slag Crusher for sale

Our core business is to manufacture crushing equipment, grinding mills and screening plant. Whether we supply copper slag crusher equipments and design copper slag crushing plant according to the needs of customers. Our worldwide market consists of the following counries : South Africa, Nigeria, India, Russia, USA, Canada, Australia, Egypt, Nubia, Peru, Indonesia, Brazil, Kenya,Papua New Guinea, Zambia, Oman, Zimbabwe, Mexico, Ghana, Zimbabwe, Philippines, Guinea, Argentina etc.

Slag Crusher

Copper-Ore-300x224

Copper Ore

SBM, we hold expertise in providing slag ore crusher, that are well suited for crushing several types of mid-hard and above mid-hard ores and rocks. Noted for its reliable construction, high production activity, easy adjustment and less cost functioning, our slag crushers are in conformance with international standards.

The spring release system from the slag crusher are an overload protection system that allows tramp to feed the crushing chamber without causing any harm to the crusher. Our slag crusher makes plaster stone in addition to engine oil separated and assures reliable performance.

Boiler slag and bottom ash, steel slag crusher, copper slag crushing machine, lead slag grinding plants, coal slag, cone crusher utilized in slag processing, slag crusher producers, blast furnace slag crusher plant, cement slag plants, slag mill, slag crushing machinery, iron ore jaw crusher, ball mill for crushing slag, coke plant, copper slag grinder machine, large iron slag machine, primary slag crusher in Ghana, aggregate slag crushers etc.

Copper Slag Crushing Equipment

SBM is a high-technology enterprise of Shanghai city in China. It is a professional manufacturer of copper slag crushing mining equipment, located in beautiful Pudong New District, with factory area of more than 70,000 square meters. The company has formed a complete production-chain that takes copper slag crusher, rock crusher, concrete grinding mill as the main products and vibrating screen, vibrating feeder, etc. as supplementary products.

Saturday, November 26, 2011

Copper Mining Equipments South Africa

copper-processing-300x287

copper processing

South Africa is a Copper-producing Country. South Africa is the world’s second major manufacturer of copper ore,gold, and still is loaded with lots of other precious metals to supply. It is the world's main producer of manganese, chrome, platinum, vermiculite and vanadium. South Africa also has the title of becoming the third largest coal exporter on earth. South Africa is involved in the following commodities : Copper, Cobalt, Lead, Gold, Nickel, Silver, PGM, Uranium Oxide and Zinc (amongst others).

Copper Mining Equipment in South Africa

Each one of these precious and common metals that Nigeria produces originates from extensive money and time allocated to mining, which requires mining equipment. The mining equipment in Nigeria is equivalent to that used all over the world. The equipment needed is dependent a great deal on mining techniques. Surface mining is less harmful and complex than subsurface or subterranean mining, and for that reason is commonly less costly. The kind of mines also matter greatly when it involves identifying which kind of mining equipment may be needed. Placer deposits make reference to mines in which the valuable minerals are based in the sands or gravel on the top of ground or in the banks of rivers, streams or streams. Lode deposits are mines in which the valuable minerals are located deep within the veins of other rocks. Both these kinds of mines require surface mining in addition to subterranean mining techniques.

Copper Beneficiation in Copper Processing Crusher Plant

Copper flotation: general use easy process, over time of grinding, fine -200 mesh about 50% to 70%, 1 toughing, two or three occasions selected, one or two occasions sweeping election . Disseminated copper minerals, for example relatively small size, may think about the stages of grinding and separation process.

Treatment place copper concentrator, they will use rough concentrate regrinding – selected selection stage grinding process, and it is essence is mixed – flotation process. First with a coarse, rough election, sweep the election, after which grinding mill after which rough Concentrate selected by high-grade copper concentrate while focusing. Walk out of crude makes up about about 45% -200 mesh 50% -200 mesh after which carefully walk out about 90% to 95%.

Thursday, November 24, 2011

Coal Grinder Equipment Used

SBM coal grinding mill can be a flexible design, we absorb the advantages of Loesche coal mill and then add features too. Coal grinding mill or coal pulverizer are designed for all grades of coal which is highly economical in terms of specific energy consumption. Raymond coal mill can grind all grade coal from hard coal, woodsy lignite, lignite to anthracite coal, oil coke, We’re able to offer you a turnkey project including design, install, and debug a myriad of coal grinding mill plants.

Ball Mill 

ball mill is the vital thing grinding mill for grinding following a crushing process, and ball mill is often a efficient grinding mill for grinding many materials into fine powder. Ball mill may be used for grinding various ore as well as other grinder-able materials wet or dry. Based on variations of discharging materials, The ball mill series are split up into grate type and overflow type, and ball mill goes to grate type.The ball mill is definitely an efficient grinder machine for grinding many materials into fine powder. The Ball mill may be used to grind many different types of mine along with other materials, so that you can select the mine.

Raymond Mill 

After a period of practice and improvement, Raymond mill structure gets perfect daily. For low consumption, low investment, atmosphere friendly , small occupation area, plus much more efficient compared to traditional mill, it’s broadly found in the region of metallurgy, building materials, chemical industry and mining to process powder.

The raymond mill can be used in grinding the non-flammable and non-explosive stuff that has got the Moh’s hardness below 7, humidity under 6%, for instance gypsum, talc, calcite, limestone, marble, feldspar, barite, dolomite, granite, kaolin, bentonite, bauxite, iron ore etc., the greatest items differ from 613 micron to 44 micron. Using the function of separator and blower, raymond mill can meet different customers’ demand.

Mineral processing equipment

SBM can be a mineral processing mining equipment manufacturers in China, Also we export mineral processing machine to India,Nigeria, Australia, Russia, Canada, Egypt, UZ, Nubia, Peru, Indonesia, Brazil, Nigeria, Papua New Guinea, Kenya, Zimbabwe, Zambia, Ghana, Mexico, Philippines, Zimbabwe, Oman, Argentina, Guinea, KZ, etc. we also design mineral processing plant to satisfy your mining business need!

In extractive metallurgy, mineral processing, also called mineral dressing or ore dressing, is the procedure of separating commercially valuable minerals using their ores. Mineral Processing Equipment include crushing equipment,grinding equipment,Gravity machine, flotation machine and Magnetic separation …

 

History of Mineral Processing

Ahead of the advent of heavy machinery the raw ore was split up using hammers wielded by hand, a procedure called “spalling”. In a short time, mechanical means put together to achieve this.

For example, stamp mills were chosen for Samarkand as early as 973. These were also being used in medieval Persia. By the 11th century, stamp mills were in widespread use through the entire medieval Islamic world, from Islamic Spain and North Africa in the western world to Central Asia inside the east. A later example was the Cornish stamps, that includes a series of iron hammers mounted in a vertical frame, raised by cams on the shaft of a waterwheel and falling about the ore under gravity.

The easiest method of separating ore from gangue contains the selecting the individual crystals of each and every. This can be a very tedious process, particularly when the person particles are small. Another comparatively simple method depends on the various minerals having different densities, causing them to collect in different places: metallic minerals (being heavier) will give up of suspension quicker than lighter ones, that is carried further by way of a stream of water. The process of panning and sifting for gold uses both these methods. Various devices known as ‘buddles’ were chosen to consider good thing about this property.

Mineral Process Mining Equipment

Ball mill is surely an efficient tool for grinding many materials into fine powder. The Ball mill is utilized to grind many kinds of mine as well as other materials, or select the mine. It is traditionally used in building material, chemical industry, etc. There are 2 means of grinding: the dry process as well as the wet process. It may be split into tabular type and flowing type in accordance with various forms of discharging material.

Dryer can be used for drying materials with humidity or granularity in the industries of mineral dressing, building material, metallurgy and chemical. Rotating dryer can be utilized for drying many kinds of materials along with convenient and reliable operation.

This machine is principally found in ore selecting, building materials, metallurgy and chemicals to dry the types of materials with certain moisture and size. The rotary drier includes a strong adaptability which could dry many different types of materials having a simple operation method and security trait, so it is traditionally used.

SBM can supply you stone crusher or rock crusher used widely in mineral processing plants such as jaw crusher, cone crusher, impact crusher, mobile crusher, hammer crusher, ore crusher, grinding mills, grinding mill, vertical mill, trapezium grinding mill, vibrating feeder, vibrating screen, sand washing machine etc. You can get crusher price according to SBM online service.

Magnetic Separator can separate the raw materials with various magnetic rigidities. The device works beneath the magnetic force and machine force. Magnetic Separators are designed to recover ferromagnetic materials.

The separators are available in designs and sizes to provide solutions for many applications. The center of every separator will be the magnetic system with its unique design, with a proven record of high efficiency. The Magnetic Separators can be found in cyclic design with process vessel diameters from 220 mm to three,050 mm.