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The Unki Platinum Mines concentrator employing an MF2 circuit configuration which includes fullyautogenous primary milling of runofmine ROM ore was commissioned in November 2010 The project was Anglo American Platinum’s first PGM concentrator in Zimbabwe and would form a significant contribution to the group’s platinum production
Main Equipments: PE1200×1500 jaw crusher, cone crusher, vibrating scree, vibrating feeder and conveyor....
Raw Material: granite
Capacity: 600t/h
Working Period: From March 2014 until now
Main Equipments: PE series jaw crusher, impact crusher, sand maker, raymond grinding mill, vibrating screen and vibrating feeder....
Raw Material: limestone
Capacity: 100t/h
Size of Finished case: 0.125mm-0.044mm
Equipped with vibrator feeder, jaw crusher, sand maker (vertical shaft impact crusher), vibrating screen, sand washer, belt conveyor and central electronic control, sand making plant can process the granite, limestone, basalt, cobble and other materials t...
Processing capacity: 50-520 t/hApplied material: granite, basalt
quartz with the color of black, dark gray and dark brown is a common basic volcanic rock mineral. With advantages of good corrosion resistance, compression resistance and oxidation resistance, quartz is widely used in roads, railways, construction, buildi...
Processing capacity: 30-700 t/hApplied material: quartz, bank gravel
The 250t/h basalt crushing line owner has a large-sized mining field in Zambia....
Raw Material: basalt
Discharging Size: 35-45mm
Crushing Capacity: 250t/h
This micronized line for quicklime is in Teheran, Iran. The whole line includes pe250x400 jaw crusher, electromagnetic vibrating feeder, HGM175 grinding mill, hoist, electric control cabinet, packaging machine, pulse duster, etc., with the features of hig...
Processing capacity: 15 t/hApplied material: Quicklime
The Unki Platinum Mines concentrator employing an MF2 circuit configuration which includes fullyautogenous primary milling of runofmine ROM ore was commissioned in November 2010 The project was Anglo American Platinum’s first PGM concentrator in Zimbabwe and would form a significant contribution to the group’s platinum production
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Ore from the underground blockcave mine less than 300mm in size is conveyed to two stockpiles each feeding two separate autogenous wetgrinding circuits These in turn each comprise a 975 meterdiameter tumbling mill rotated
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Two 64m x 49m primary mills fully autogenous are operated in parallel at a feed rate of 380 thr run of mine ore A discharge mill trommel on each mill cuts at 12mm with the oversize being crushed through a closed circuit cone crushing plant
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grinding circuit was replaced by two autogenous grinding mills 98m diameter x 44m length in June 1991 These mills were originally designed to operate in open circuit or with four 690 mm inclined hydrocyclones in closed circuit Each autogenous mill was also planned to be followed by one ball mill
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Suitable for all AG mill applications Multotec’s range of rubber and rubber composite liners reduce downtime through superior impact resistance Rubber and Rubber Composite liners are suitable for autogenous mills handling runofmine rock
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Semiautogenous grinding uses a minimal ball charge in the range of 615 while autogenous grinding uses ore only SAG and AG Mills operate by lifting oregrinding media and dropping it on the operating bed of the mill charge
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Grinding in small plants as in larger installations has proven to be the most costly of all unit operations from both capital and operating standpoints Therefore grinding deserves the most scrutiny of all operations during the design procedure A recent survey by a major grinding mill manufacturer reveals that more than 80 autogenous or semiautogenous mills having between 100 and 1000
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At the concentrator plant the SAG mills driven by the two 225MW gearless mill drives – the most powerful in operation today – grind the ore down to particles processing a total of 4400 tons of ore per hour The order to supply a 28MW GMD for the world’s first 128m diameter SAG mill
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Table of Contents Autogenous Grinding CircuitsSAG vs Ball Mill AdvantagesAG SAG Mill Grinding Compared – Which is BestTesting for Product SizePrimary Autogenous Grinding Concentrators Recent Trends and DevelopmentsAutogenous Mill TypesPrimary Autogenous MillsWet Versus Dry Primary GrindingBasic Plant FlowsheetBasic Primary Grinding Flowsheets Size reduction is the most
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POSITION OVERVIEW To inspect troubleshoot repair and maintain machinery and structural parts in the Concentrator ESSENTIAL FUNCTIONS •Systems crushers ball mills semiautogenous mills screen decks compressors filter drums horizontal and vertical centrifugal pumps flotation classifiers and lubrication systems
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