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the optimal ball diameter in a mill 333 the grinding efficiency of the narrow particle size fractions with ball charge of various diameters has been observed through the constant of milling rate in the equation of the grinding kinetics law for the first order grinding RRdec 12, 2016 ball mill power calculation example wet grinding ball mill in closed circuit is to be fed 100 tph of a material with a work index of and a size distribution of calculation of energy required for grinding in a ball mill. found that the change of the mass passing a test screen could be related to the aperture size of the screen by the formula: GK the grinding-product size, in a bond ball mill, calculation of ball mill grinding efficiency international calculation of ball mill grinding efficiency. dear experts please expalin in a excel sheet to calcualte the same. thanks. read more
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