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The process of extracting gold from sulphide ore begins when the trucks deliver the ore from the blast site to the ROM run of mine pad at the Fimiston Plant Here the crusher reduces it to chunks of rock about the size of a fist The ore is then ground into very fine particles less than one fifth of one millimetre in diameter in large rotating SAG Semi Autogenous Grinding and Ball Mills
Get PriceLive • Comex sorting systems employ the latest state of the art sensor technologies utilizing X rays optical properties and reflectance in UV and IR light using hyperspectral imaging They were widely applied in mining and mineral industry for separation of different minerals like coal quartz calcite and pre concentration of metal ores
Get PriceBall Mill Design A survey of Australian processing plants revealed a maximum ball mill diameter of meters and length of meters Morrell 1996 Autogenous mills range up to 12 meters in diameter The length to diameter ratios in the previous table are for normal applications For primary grinding the ratio could vary between 1 1and 1 For fine regrinding in open circuit the
Get PriceMost ball mills operate most efficiently between 65% and 75% of their critical speed Photo of a 10 Ft diameter by 32 Ft long ball mill in a Cement Plant Photo of a series of ball mills in a Copper Plant grinding the ore for flotation Image of cut away ball mill showing material flow through typical ball mill Flash viedo of Jar Drive and Batch Ball Mill grinding ore for testing Return To
Get PriceThe mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble mill AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill
Get PriceThe Humboldt mill is a former iron ore processing plant site that has been converted and refurbished to process Eagle mine ore Ore is processed using a conventional three stage crushing and single stage ball mill process flotation to produce separate nickel and copper concentrates Tailings from the plant are deposited sub aqueously in the adjacent former Humboldt iron ore pit that has been
Get PriceOre processing Ore mined at the underground mine is processed at the Kamoto Concentrator KTC and the Luilu Metallurgical plant The sulphide ore from KTO is currently treated in a separate sulphide mill and float circuit of the new KTC circuit with a capacity of 12 million tonnes per annum Mtpa The resultant concentrate along with the concentrate produced from the mixed KOV OP and
Get Price· In Grinding selecting calculate the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do Often the ball used in ball mills is oversize just in case Well this safety factor can cost you much in recovery and/or mill liner wear and tear
Get PriceGold ore Prominer maintains a team of senior gold processing engineers with expertise and global experience These gold professionals are specifically in gold processing through various beneficiation technologies for gold ore of different characteristics such as flotation cyanide leaching gravity separation etc to achieve the processing plant of optimal and cost efficient process designs
Get PriceOre processing Ore mined at the underground mine is processed at the Kamoto Concentrator KTC and the Luilu Metallurgical plant The sulphide ore from KTO is currently treated in a separate sulphide mill and float circuit of the new KTC circuit with a capacity of 12 million tonnes per annum Mtpa The resultant concentrate along with the concentrate produced from the mixed KOV OP and
Get PriceMost ball mills operate most efficiently between 65% and 75% of their critical speed Photo of a 10 Ft diameter by 32 Ft long ball mill in a Cement Plant Photo of a series of ball mills in a Copper Plant grinding the ore for flotation Image of cut away ball mill showing material flow through typical ball mill Flash viedo of Jar Drive and Batch Ball Mill grinding ore for testing Return To
Get PriceTower mills often called vertical mills stirred mills or regrind mills are a more efficient means of grinding material at smaller particle sizes and can be used after ball mills in a grinding process Like ball mills grinding steel balls or pebbles are often added to stirred mills to help grind ore however these mills contain a large screw mounted vertically to lift and grind material
Get PriceGeneral Description of Ore Processing in a Conventional Copper Flotation P lant Figure 1 is a generalized diagram of a conventional copper flotation plant from the point where ore first enters the circuit to the production of concentrate and tailings To prepare ore for the flotation process run of mine ore which may contain from about 2 to 5 percent water by weight when mined is
Get PriceThe process of extracting gold from sulphide ore begins when the trucks deliver the ore from the blast site to the ROM run of mine pad at the Fimiston Plant Here the crusher reduces it to chunks of rock about the size of a fist The ore is then ground into very fine particles less than one fifth of one millimetre in diameter in large rotating SAG Semi Autogenous Grinding and Ball Mills
Get PriceThe Telfer concentrator comprises a dual train comminution circuit followed by flotation and a carbon in leach CIL circuit The two processing trains contain two stage grinding circuits each comprising a 15 MW SAG mill and 13 MW ball mill
Get PriceThis equation is often used to determine the amount of water in a process stream1 knowing the solids concentration by weight and the tons/hr of solids in a process stream Solids Concentration Example The underflow stream from the classifying cyclone bank contains 100 tons/hour of ore which represents 45% of the total slurry mass
Get Price· This step involves the material being retained inside the mill for a specific time with or without grinding balls which is calculated by applying Bond s work index to the process calculation This index takes into account the material ore hardness and feed size mill speed material recirculation desired fineness etc When the material exits the mill the iron ore is classified using
Get PriceAlumina Balls and Satellites Union Process is the one source for 90% 94% % and % alumina media 90% alumina is available in satellites and rod/cylinders 94% alumina balls have excellent wear resistance with higher impact strength to save running costs with less contamination They have great wear rate generally better than 90% or 99
Get PriceXinhai provides mineral processing technology equipment manufacture and one stop service for mineral processing plant which solve many problems for mine investors Xinhai equipment mainly include ball mills flotation thickeners and so on
Get PriceProcessing Our mills run the ore through ball and rod mills to reduce it to the proper size for our flotation process Flotation separates the copper zinc and lead After separation the various concentrates are dried to the consistency of a damp powder before being stored in our enclosed storage and shipping facility Water Treatment The mill uses the water that naturally occurs in the
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