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Effective Mineral Ball Mill Pdf Ball Mill Pdf For Gold Copper; Effective Mineral Ball Mill Pdf Ball Mill Pdf For Gold Copper . High Pressure Grinding Rollsa Promising And. and four ball mills with a diameter of 7.9 m and 13.4 m long, run by 17 MW gearless drives. At Sierra Gorda project, Chile, a new copper processing plant with a capacity of 110 thousand tday will use four HPGR Polycom-2417 ...

Get Pricedetermining the optimal ball charge in mills. In the first part of the paper, on the basis of the theoretical analysis of the energy-geometric correlations, which are being established during the grain comminution by ball impact, as well as on the basis of the experiment carried out on grinding quartz and copper ore in a laboratory ball mill, there has been defined a general form of the ...

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