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Chat Online30 · Figures 85 for the popular mill types 3 c is the mill speed measured as a fraction of the critical speed More reliable models for the prediction of the power drawn by ball semiautogenous and fully autogenous mills have been developed by Morrell and by Austin Morrell S Power draw of wet tumbling mills and its Get price
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Get PriceMill Critical Speed Determination The Critical Speed for a grinding mill is defined as the rotational speed where centrifugal forces equal gravitational forces at the mill shells inside surface This is the rotational speed where balls will not fall away from the mills shell
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Get PriceThe formula proposed by Austin et al this equation integrates to 3 where Chat Now Grinding Mill Power Consumption calculating the effect of charge weight on power draw in different mill types are 3 fraction critical speed decreasing as diameter increases versus speed The critical speed of a ball mill is calculated as 5419
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