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Mar 08, 2013· calculation of ball mill grinding efficiency. dear experts . please tell me how to calculate the grinding efficiency of a closed ckt & open ckt ball mill. in literatures it is written that the grinding efficiency of ball mill is very less [less than 10%]. please expalin in a n excel sheet to calcualte the same. thanks. sidhant. reply

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Jan 01 2013 ball mills mine provides mining gold copper coal to achieve a reasonable efficiency with ball mills they must be operated in a closed system this formula calculates the critical speed of any ball mill more detailed,Ball Mill Efficiency Equation Pdf In Bangladesh.

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