magnet separators for tin and tantalum

magnetic separator for mineral processing - jxsc machine

magnetic separator for mineral processing - jxsc machine

Three discs high intensity dry magnetic separator is a dry type magnetic adjustable separating machine, special for separation minerals such as coltan, tungsten, tantalite, cassiterite, wolframite, ilmenite, rare earth ore, chromite, limonite, columbium and tantalum ores, zircon, rutile, monazite, andalusite, garnet, kyanite, feldspar, quartz and other minerals with magnetic differences and removal of iron in nonmetallic minerals.

3pc high intensity dry magnetic separator consists of four electric magnetic coils, three magnet discs, and under the feeding hopper, theres a small low-intensity magnetic drum, which is used for remove iron sand or other high magnetic intensity minerals. The electric control cabinet section consists of components of control, voltage regulation, rectification, instrument and so on.

The disc belt magnetic separator consists of a single belt upon which the feed is distributed across and is transported slowly underneath a series of four electromagnets, the magnetic fields of which lift the magnetic grains off the belt depending on their susceptibility. Underneath each magnet is a smaller faster moving belt across the main belt at right angles which picks up the magnetic grains and transports them away from the magnetic field to discharge into launders. The gap between the main belt and the magnets becomes progressively smaller until only the non-magnetic grains unaffected by the magnetic fields remain on the main belt and discharge off the end.

Three-disc electromagnetic separator is for a variety of strong magnetic minerals mixed ore separation, according to the difference of magnetic minerals, can achieving efficient separation of minerals can form different intensity magnetic disk by adjusting the excitation current levels, can also be adjusted each level disk and sensing distance between dressing grain is to get different magnetic induction intensity, reaching a one-time separation of various minerals. This device is widely used in ilmenite, monazite, tungsten, tin, tantalum, iron ore and other minerals with magnetic and non-magnetic dry sorting.

The magnetic separator machine can get an extremely high separating efficiency, which could get 4 kinds of high-grade minerals to concentrate at one time.Operations can be adapted to water-lack mines, which is very popular in the unwatered areas.

The three-disc electromagnetic separator is sorting mineral with size less than 2-3mm of weakly magnetic minerals and rare metal ore selection, The moisture of the feeding material should be under 1%. it is a very important mineral processing equipment. Three-disc electromagnetic separator have 2 models: 3PC-500 & 3PC-600, 3PC-500 with magnetic disc diameter of 500mm, while model 3PC-600 is with disc diameter 600mm.

1. This belt magnetic separator could separate four different useful minerals at one time. 2. 4 varieties of final concentrate can be obtained by separation of this Dry Intensified Magnetic Separator. 3. Ta & Nb grade could reach 60% by using our dry magnetic separator. 4.compact structure, stable performance, easy installation, and convenient operation and maintenance. 5.magnetic intensity can be adjustable, also can be used for other mineral concentrations.

3pc disk dry magnetic separator is a dry intensified magnetic separator, special designed for separation of ilmenite, rare earth ore, chromite, tungsten and tin ores, limonite, columbium and tantalum ores, zircon, rutile, monazite, andalusite, garnet, kyanite, feldspar, quartz and other minerals with magnetic differences or removal of iron in nonmetallic minerals.

JXSC establish a professional mineral laboratory for sample testing from 2017, we can do magnetic separation test of sample ores for gold, tin, tungsten, chromite, tantalum-niobium, tantalite, ilmenite, limonite, magnetite, and other magnetic minerals test. Welcome to send your sample ores for our analysis.

JXSC has been providing magnetic separators for mineral processing since 1985, different types of magnetic separators, electromagnetic separator for handling various mineral materials, wet type, dry type, high intensity, weak intensity, etc. Contact us for a convenient separator machine selection service.

titan metallurgical services (ttms)

titan metallurgical services (ttms)

Australian silica sands (for Cape Flattery Silica Sands October 2012 to March 2013) Review of new processing plant flow sheets and P & IDs for CFSM silica sands mine, Yorke Peninsula, QLD, followed by four weeks on site for commissioning of the new gravity separation and dewatering plants. This became extended due to numerous issues, including water supply and distribution, bucket wheel dewatering etc.

Australian wolframite (for Wolfram Camp Mine September 2012) Site visit to WCM wolframite mine, near Dimbulah, QLD to review and discuss the flow sheet with management, in particular additional dry processing steps to improve product quality. Subsequently this involved sourcing an HTR within Australia. Further assistance in Feb 2013 involved a review of past documentation to determine possible upgrading and processing of the feed to enhance production.

Site visit to WCM wolframite mine, near Dimbulah, QLD to review and discuss the flow sheet with management, in particular additional dry processing steps to improve product quality. Subsequently this involved sourcing an HTR within Australia.

New Zealand silics sands (for Tapora Sands September 2012) Site visit to silica sand mine and processing plant north of Auckland, New Zealand, to advise on ways to improve the product quality to enable a glass sand product to be made. This involved numerous recommendations including a more suitable deposit, screening changes, additional spiral stages, sampling and analysis.

Site visit to silica sand mine and processing plant north of Auckland, New Zealand, to advise on ways to improve the product quality to enable a glass sand product to be made. This involved numerous recommendations including a more suitable deposit, screening changes, additional spiral stages, sampling and analysis.

Senegalese mineral sands plant design (for CPG-MT Feb-May 2012) Lead process engineer involved in process flow sheet design of the Grande Cote minerals sands project in Senegal, at the CPG engineering office on the Gold Coast, QLD. This involved checking process mass flow and process and instrumentation diagrams, writing control and operating philosophy documents for the wet concentration plant and mineral separation plant (wet and dry circuits) and attending meetings including HAZOP.

Lead process engineer involved in process flow sheet design of the Grande Cote minerals sands project in Senegal, at the CPG engineering office on the Gold Coast, QLD. This involved checking process mass flow and process and instrumentation diagrams, writing control and operating philosophy documents for the wet concentration plant and mineral separation plant (wet and dry circuits) and attending meetings including HAZOP.

Australian Coal Handling and Preparation Plant commissioning (for CPG Oct Dec 2011) TTMS spent ten weeks in the latter part of the year on shift on behalf of Downer EDI assisting in the commissioning of a new CHPP at the Wesfarmers Curragh coal mine near Blackwater in Central Queenslands Bowen Basin. This involved a fly in / out roster. The plant included vibrating screens, dense media and dewatering cyclones, Jameson flotation cells, spirals, magnetic separators, centrifuges, horizontal belt filters and thickeners.

TTMS spent ten weeks in the latter part of the year on shift on behalf of Downer EDI assisting in the commissioning of a new CHPP at the Wesfarmers Curragh coal mine near Blackwater in Central Queenslands Bowen Basin. This involved a fly in / out roster. The plant included vibrating screens, dense media and dewatering cyclones, Jameson flotation cells, spirals, magnetic separators, centrifuges, horizontal belt filters and thickeners.

Spanish scheelite (for Heemskirk Resources Jan-Mar 2011) On site metallurgical consultant Heemskirk Resources (Dayton Mining) Los Santos scheelite mine in Spain. This involved setting up improved metallurgical accounting procedures (database, laboratory, automatic sampling), improving plant operating procedures and flow sheet changes in the concentrator to lift recovery and concentrate grade, and instigate investigations into new methods of recovering fine scheelite using enhanced gravity separators.

On site metallurgical consultant Heemskirk Resources (Dayton Mining) Los Santos scheelite mine in Spain. This involved setting up improved metallurgical accounting procedures (database, laboratory, automatic sampling), improving plant operating procedures and flow sheet changes in the concentrator to lift recovery and concentrate grade, and instigate investigations into new methods of recovering fine scheelite using enhanced gravity separators.

Australian silica sands (for Fraser & Osborne Dec 2010) Metallurgical consultant to F& O for a new concentrator at Cape Flattery Silica Mines, QLD. This included an on-site stint to evaluate the existing plant operations and procedures, and make recommendations for the proposed new plant.

Metallurgical consultant to F& O for a new concentrator at Cape Flattery Silica Mines, QLD. This included an on-site stint to evaluate the existing plant operations and procedures, and make recommendations for the proposed new plant.

Australian mineral sands (forAMEC Minprok May 2010) The metallurgical component of a team that carried out an audit of Iluka Resources recently commissioned Murray Basin mineral sands projects (Jacinth Ambrosia and Kulwin mines and Narngulu and Hamilton MSPs) to confirm the validity of their respective production forecasts for 2010.

The metallurgical component of a team that carried out an audit of Iluka Resources recently commissioned Murray Basin mineral sands projects (Jacinth Ambrosia and Kulwin mines and Narngulu and Hamilton MSPs) to confirm the validity of their respective production forecasts for 2010.

Mozambique mineral sands (for Kenmare Resources Ltd Nov 2009 Apr 2010) Two stints of six weeks and four weeks focussing on process development and improvement issues in the MSP (particularly the rutile circuit), plus day to day problem shooting, also sampling and other issues in the WCP, at the Moma mineral sands project, Mozambique.

Mozambique mineral sands (for RocheMT, August to December 2008) Roche Mining carried out the metallurgical test work and supplied most of the separation equipment used in this major mineral sands project at Moma in northern Mozambique. The project was constructed by a JV of Multiplex and Bateman for Kenmare Resources and was commissioned last year. TTMS was asked to assist with carrying out a Test after Completion on the wet concentrator. This involved ensuring that plant was set up for the test to proceed, and then eventually monitor the metallurgical performance over a seven day period.

Mozambique mineral sands (for RocheMT, August to December 2008) Roche Mining carried out the metallurgical test work and supplied most of the separation equipment used in this major mineral sands project at Moma in northern Mozambique. The project was constructed by a JV of Multiplex and Bateman for Kenmare Resources and was commissioned last year. TTMS was asked to assist with carrying out a Test after Completion on the wet concentrator. This involved ensuring that plant was set up for the test to proceed, and then eventually monitor the metallurgical performance over a seven day period.

Roche Mining carried out the metallurgical test work and supplied most of the separation equipment used in this major mineral sands project at Moma in northern Mozambique. The project was constructed by a JV of Multiplex and Bateman for Kenmare Resources and was commissioned last year.

Indonesian cassiterite (for Micromine Ltd, April 2008) Micromine carried out a resource audit on behalf of PT Timah, a long established company and one of the largest tin producers in world, who operate and purchase cassiterite from a number of offshore and onshore operations, mostly on Bangka Island, Indonesia. TTMS was part of a team of specialists, and provided metallurgical input to the audit, by assessing the recoveries of the mineral processing facilities and the laboratory assaying techniques involved.

Micromine carried out a resource audit on behalf of PT Timah, a long established company and one of the largest tin producers in world, who operate and purchase cassiterite from a number of offshore and onshore operations, mostly on Bangka Island, Indonesia.

Indonesian ironsands (for Indomines Ltd, November 2007 to May 2008) Indomines are in a JV to develop this potentially major project based on a coastal titano-magnetite deposit on the south coast of Java, Indonesia for the production of pig iron. TTMS was involved in assisting commissioning and operating a 10tph pilot plant and associated quality control facilities, consisting of a ball mill, drum magnets, and laboratory XRF respectively, in order to produce a 50tonne bulk concentrate sample for pyro-metallurgical tests in Europe.

TTMS was involved in assisting commissioning and operating a 10tph pilot plant and associated quality control facilities, consisting of a ball mill, drum magnets, and laboratory XRF respectively, in order to produce a 50tonne bulk concentrate sample for pyro-metallurgical tests in Europe.

Indian mineral sands (for RocheMT, November 2006 to July 2007) RocheMT asked TTMS to assist in the commissioning and optimisation of new and upgraded wet concentration and wet and dry mineral separation circuits at Indian Rare Earths (IRE) Chavara, Kerala, India operations. The various sections of this long established plant was expanded and modernised, by installation of new screens and spirals, a drum magnet and hydrosizer, wet high intensity magnet separators (WHIMS), fluid bed dryers (FBDs), Cararra HT separators, retrofitted HTRs, plate separators, and 1800 Kelsey jig and screening module.

RocheMT asked TTMS to assist in the commissioning and optimisation of new and upgraded wet concentration and wet and dry mineral separation circuits at Indian Rare Earths (IRE) Chavara, Kerala, India operations. The various sections of this long established plant was expanded and modernised, by installation of new screens and spirals, a drum magnet and hydrosizer, wet high intensity magnet separators (WHIMS), fluid bed dryers (FBDs), Cararra HT separators, retrofitted HTRs, plate separators, and 1800 Kelsey jig and screening module.

Australian mineral sands (for Roche MT, March to May 2006) RocheMT asked TTMS to assist in optimising the performance of the wet concentrator at Bemax Resources Ginkgo mine site in Western NSW ahead of a performance test. This involved sampling, process control, and flow sheet development test work, which led to improvements in recovery and concentrate grade. TTMS subsequently returned to Ginkgo in September 2006 on behalf of Bemax Resources to assist with screening and cycloning issues.

RocheMT asked TTMS to assist in optimising the performance of the wet concentrator at Bemax Resources Ginkgo mine site in Western NSW ahead of a performance test. This involved sampling, process control, and flow sheet development test work, which led to improvements in recovery and concentrate grade. TTMS subsequently returned to Ginkgo in September 2006 on behalf of Bemax Resources to assist with screening and cycloning issues.

Australian mineral sands (for Matilda Minerals Ltd, February 2007) Matilda Minerals asked TTMS to inspect and audit their concentrator and laboratory on the Tiwi islands in the NT. A number of recommendations were made related to sampling procedures, metallurgical accounting and laboratory analysis.

Matilda Minerals asked TTMS to inspect and audit their concentrator and laboratory on the Tiwi islands in the NT. A number of recommendations were made related to sampling procedures, metallurgical accounting and laboratory analysis.

Bolivian cassiterite (for AITCOBOL Ltd, October 2005 to February 2006) AITCOBOL asked TTMS to carry out pilot plant metallurgical test work to develop a gravity circuit to recover cassiterite from tailings from an old dump located at Catavi, Bolivia. This involved compositing and then processing borehole samples through various types of gravity separators at a metallurgical laboratory in Oruro, Bolivia. Spirals and shaking tables were initially tested, but because of the extremely fine particle size, enhanced gravity separation devices were subsequently trialled, including a Falcon separator (in Oruro), Knelson concentrator (in Vancouver), J200 Kelsey jig, Moseley MGS, Falcon C type concentrator (all at Minsur Peru)

AITCOBOL asked TTMS to carry out pilot plant metallurgical test work to develop a gravity circuit to recover cassiterite from tailings from an old dump located at Catavi, Bolivia. This involved compositing and then processing borehole samples through various types of gravity separators at a metallurgical laboratory in Oruro, Bolivia. Spirals and shaking tables were initially tested, but because of the extremely fine particle size, enhanced gravity separation devices were subsequently trialled, including a Falcon separator (in Oruro), Knelson concentrator (in Vancouver), J200 Kelsey jig, Moseley MGS, Falcon C type concentrator (all at Minsur Peru)

Australian cassiterite (for Bluestone Tin Ltd, November 2004 to March 2005) Bluestone Tin asked TTMS to assist with the re-commissioning of the Renison Bell tin concentrator on the west coast of Tasmania. This old and complex concentrator had been refurbished and modified since standing idle for some time. TTMS assisted with commissioning and optimising the various circuit stages including rod and ball mills, banana screens, sulphide flotation, shaking tables, spirals, Moseley cyclones, Moseley gravity separators, Kelsey jigs, cassiterite flotation.

Bluestone Tin asked TTMS to assist with the re-commissioning of the Renison Bell tin concentrator on the west coast of Tasmania. This old and complex concentrator had been refurbished and modified since standing idle for some time. TTMS assisted with commissioning and optimising the various circuit stages including rod and ball mills, banana screens, sulphide flotation, shaking tables, spirals, Moseley cyclones, Moseley gravity separators, Kelsey jigs, cassiterite flotation.

Australian magnetite (for IMO, August to October 2004) Independent Metallurgical Operations asked TTMS to operate and develop an on site pilot plant at Ernest Henry mine, near Cloncurry, Qld (part of the Xstrata Group) for the recovery of magnetite from their flotation plant tailings. This involved expanding the initial pilot plant setup to include a second drum magnet, a hydrosizer and a spiral. A bulk concentrate of magnetite was produced for further test work in China, together with a flow sheet for recovery of residual copper and gold values.

Independent Metallurgical Operations asked TTMS to operate and develop an on site pilot plant at Ernest Henry mine, near Cloncurry, Qld (part of the Xstrata Group) for the recovery of magnetite from their flotation plant tailings. This involved expanding the initial pilot plant setup to include a second drum magnet, a hydrosizer and a spiral. A bulk concentrate of magnetite was produced for further test work in China, together with a flow sheet for recovery of residual copper and gold values.

Egyptian tantalite (for Gippsland Ltd, July 2004 to September 2007) Gippsland is developing a large tantalite / cassiterite deposit at Abu Dabbab near the Red Sea in Egypt. Involvement with this project began with a previous employer (pilot plant metallurgical test work), and led to a continuation with TTMS. This included several trips to Roche Mining metallurgical laboratory on the Gold Coast for electrostatic and magnetic separation tests, a trip to Germany to the major potential customer (HC Starck) to discuss metallurgical issues, and a trip to South Africa to carry out comparative spiral test work at Mintek in Johannesburg. For most of this time TTMS was kept on a retainer basis.

Gippsland is developing a large tantalite / cassiterite deposit at Abu Dabbab near the Red Sea in Egypt. Involvement with this project began with a previous employer (pilot plant metallurgical test work), and led to a continuation with TTMS. This included several trips to Roche Mining metallurgical laboratory on the Gold Coast for electrostatic and magnetic separation tests, a trip to Germany to the major potential customer (HC Starck) to discuss metallurgical issues, and a trip to South Africa to carry out comparative spiral test work at Mintek in Johannesburg. For most of this time TTMS was kept on a retainer basis.

tantalum, tin and tungsten

tantalum, tin and tungsten

Tantalum and tin minerals frequently (but not always) occur commercially together in hard rock deposits usually as pegmatite. Tin also occurs in alluvial deposits. In addition tantalum is always associated with niobium. Tungsten minerals occur commercially in hard rock deposits usually in pegmatites (wolframite) or contact metamorphic skarns(scheelite).

mineral Chemical formula Specific gravity Magnetic response Electrostatic response appearance tantalite (Fe, Mn) (Nb,Ta)2O6 6-8 Weakly magnetic conductor Dark grey opaque microlite (NaCa)2 Ta2O6 4-6 Non magnetic conductor Dark grey opaque columbite (Fe, Mn) (Nb,Ta)2O6 5.2 Weakly magnetic conductor Dark grey opaque cassiterite SnO2 7-7.1 Non magnetic conductor Light grey to dark grey opaque wolframite (Fe,Mn)WO4 7-7.5 Weakly magnetic conductor Black-brown opaque scheelite (Ca)WO4 5.9-6.1 Non magnetic conductor White grey-cream opaque

The physical properties (specific gravity, magnetic and electrostatic response) listed above are used to concentrate and separate these minerals using gravity separation, magnetic separation and electrostatic separation respectively to a saleable product or as a feedstock for further processing.

As tantalum, tin and tungsten deposits are generally hard rock, and low grade (particularly tantalum), they are considerably more difficult to process than mineral sands. Mining is either open cut or underground and requires drilling and blasting. The broken rock then requires crushing and grinding to liberate the minerals prior to separation. In the process of comminution the liberated particles will generally not be rounded in shape but angular making their behavior in wet gravity separation more difficult. In addition the comminution processes will generate particles of a wide size range despite screening, including fines and slimes which will make gravity separation difficult. As a consequence tantalum recoveries and concentrate grades are much lower than for mineral sands, typically 60% and 30% respectively, while tin and tungsten are generally higher, although still not as high as mineral sands.

A typical tantalum / tin / tungsten crushing circuit consists of a grizzly screen which is fed from a run of mine (ROM) pad consisting of several ore types and grades which are blended to produce a steady feed. The grizzly undersize is broken up in a primary jaw crusher, with the jaw crusher product being further broken up in a secondary cone crusher. The secondary crushed ore is then often screened over a double deck vibrating with the screen undersize (-12mm) going to a crushed ore stockpile and the oversize going to a tertiary cone crusher which operates in closed circuit with the screen.

The crushed ore stockpile then feeds a grinding circuit typically consisting of either rod mills or ball mills or combinations of both of these in closed or open circuit with cyclones or screens. The objective of the grinding circuit should be to liberate the mineral without over-grinding, with valuable mineral being recovered as coarse as possible in the subsequent gravity circuits. The degree of grinding required will thus depend on the liberation characteristics of the minerals. If grinding is carried out in closed circuit with a screen /cyclone then the product sizing will be closer than if in open circuit. If cyclones are used the cyclone undersize (which is returned to the mill) will contain valuable heavy minerals due to the SG effect on cyclone classification. In order to avoid over grinding of this mineral it is usual to incorporate a gravity separation stage, to remove the mineral from the grinding circuit. If screens are used, this is not an issue as classification is by geometric properties only.

Depending on the mineral liberation characteristics conventional jigs such as the Russell jig or In Line Pressure Jig may be used if liberation is coarse enough (i.e. + 1mm) to recover a coarse product early.

Subsequent gravity separation circuits typically consist of spirals, shaking tables, Falcons, Kelsey jigs and Mozeley gravity separators (MGS) depending upon the grain and liberation size and duty (i.e. roughing, scavenging or cleaning). Screening and classification using vibrating screens and banana screens, hydrocyclones and hydrosizers are commonly employed to assist in gravity separation. Regrind mills are used in conjunction with these separators and screens and classifiers.

There are small scale mines extracting tin, tungsten and tantalum in a variety of African countries, including DRC, Rwanda, Nigeria, Ethiopia and Mozambique. Many of these are basic labour intensive local operations.

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bunting gets nigerian order for two magnetic disc separators to be used in coltan processing - international mining

bunting gets nigerian order for two magnetic disc separators to be used in coltan processing - international mining

A Nigerian mineral processor is installing two Bunting Magnetic Disc Separators (MDS) to separate individual minerals in a coltan plant. Coltan or columbite-tantalite is a black metallic ore from which the elements niobium and tantalum are extracted. Tantalum is extracted from tantalite for capacitors used in mobile phones, personal computers, and electronics. Columbite is a source of niobium, which is used in superconducting materials as well as in the nuclear, electronics, optics, and electronics sectors.

This latest export project Bunting says reflect its position as a recognised global leader for the design, manufacture, and supply of high-intensity magnetic separators for mineral processing. The Bunting European manufacturing facilities are in Redditch, just outside Birmingham, in the UK.

Bunting says the design of its Magnetic Disc Separator is widely regarded as one of the best in the world. The origins of the Magnetic Disc Separator date back to the early 1900s, with subsequent design improvements following advances in material and manufacturing technology. Since the mid-1980s, Buntings design engineers further improved the design, providing greater magnetic strength and unrivalled flexibility for improved levels of mineral separation.

The Nigerian mineral processor first contacted Bunting after viewing previously supplied Magnetic Disc Separators operating successfully in other local coltan processing plants. Following a review of the project specification and subsequent recommendations by Buntings mineral application engineers, the Nigerian processor ordered two model MDS 3-375 Magnetic Disc Separators.

In operation, an even layer of approximately 500 kg/hour of coltan raw mineral feeds via a vibratory feeder onto the Magnetic Disc Separators 375 mm wide belt. The monolayer of material initially passes under a permanent ferrite Plate Magnet, suspended at 75 mm above the belt, which captures strongly magnetic particles. The coltan then feeds under a series of three individual spinning high-intensity electromagnetic discs, each generating different magnetic field intensities and positioned at an increasingly lower suspension height above the conveyor. The magnetic intensity of each electromagnetic disc increases along the length of the conveyor, starting at approximately 10,000 Gauss (1 Tesla) and ending with 23,000 Gauss (2.3 Tesla).

As the coltan mineral mix passes under the rotating magnetic disc, magnetically susceptible particles lift and deposit into a discharge chute to the side of the conveyor. Each magnetic disc stage focuses on a particular magnetic mineral including tantalite, tin, and columbite.

Our superior Magnetic Disc Separator design is exceptionally popular with coltan processors due to the ability to vary the magnetic field and the manufacturing quality, explained Adrian Coleman, the General Manager of Bunting-Redditch. This latest project is particularly important, resulting from seeing our equipment successfully working in another coltan installation. The perfect recommendation.

magnetic separation | multotec

magnetic separation | multotec

Multotec supplies a complete range of magnetic separation equipment for separating ferromagnetic and paramagnetic particles from dry solids or slurries, or for removing tramp metal. Multotec Dry and Wet Drum Separators, WHIMS, Demagnetising Coils and Overbelt Magnets are used in mineral processing plants across the world. We can engineer customised magnetic separation solutions for your process, helping you improve the efficiency of downstream processing and lower your overall costs of production.

Multotec provides a wide range of magnetic separators including: Permanent magnet Low Intensity Magnetic Separators (LIMS) or Medium Intensity Magnetic Separators (MIMS) and electromagnetic High Intensity Magnetic Separators (HIMS). Multotec provides unmatched global metallurgical expertise through a worldwide network of branches, which support your processing operation with turnkey magnetic separation solutions, from plant audits and field service to strategic spares for your magnetic separation equipment.

Whether you need to recover fast moving tramp metal, recover valuable metals in waste streams or enhance the beneficiation of ferrous metals, Multotec has the magnetic separator you require. Dry drum cobber magnetic separators provide an initial upgrade of feed material as well as a gangue material rejection stage. By improving the material fed to downstream plant processes, our magnetic separation solutions reduce the mechanical requirements of grinding, ultimately lowering overall costs. Our heavy media drum separators are ideally suited for dense media separation plants. Our ferromagnetic wet drum separators can be used in iron ore separation plants in both rougher or cleaner beneficiation applications. We also provide demagnetising solutions that reverse the residual effects that magnetic separation has on the magnetic viscosity of ferrous slurries, to return the mineral stream to an acceptable viscosity for downstream processing. These demagnetising coils generate a magnetic field that alters magnetic orientation at 200 Hz.

The trend towards larger and faster travelling conveyors in the African mining industry has highlighted the vital role of overbelt magnets. Solutions need to be optimised to such factors as belt speed and width, the belt troughing angle, the burden depth, the material density and bulk density, the expected tramp metal specifications, ambient operating temperatures and suspension height to provide maximum plant and cost efficiency. Multotec can supply complete overbelt magnet systems, from equipment supply to a turnkey service by means of its strategic partners, including even the gantry work.

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