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Get Price13-04-2017· Over the years, it has been determined that Efficiency Factors (EF1 to EF9) should be applied to Equation 1 to drive the corrected power requirement (Rowland, ) The equation for Third Theory of Comminution Bond’s was originally developed for use with conventional crushing and grinding circuits (crusher-rod-ball mill or crusher-ball mill)

Get Priceproduct fineness to apply—the ball mill circuit P80 should be no less than approximately 70 µm (Bond, 1962) This Bond Efficiency determination should not be applied to cir-cuits with a P80 finer than approximately 70 µm without making qualifications 3 Calculate the circuit Wi Efficiency Ratio (equation ,

Get Priceball mill efficiency equation pdf The determination of the efficiency of the milling process SAIMM to the work supplied According to this definition of efficiency, ball milling is only about I per cent efficient and one is tempted to believe that there is considerableget price

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Get Price20-03-2016· Formula (5) is used in making tabulations for mill use As used in these formulas the specific gravity of the ore is obtained simply by weighing a liter of mill pulp, then drying and weighing the ore With these two weights formula (2) may be used to obtain K, and then formula (1) to convert to S, the specific gravity

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