Calculating Steel Ball Charge In Ball Mill

2012 11 29 183 ball mills The ball charge in each mill is approximately 22 tons Equa1 weights of 2 and 2 12 inch forged steel balls are used for charge make up Each ball mill is driven by a 400 hp 4160 volt motor geared through a pinon shaft to the ball mill Operation of the ball mills is maintained at 20 rpm or 83 of critical speed.

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