### TECHNICAL NOTES 8 GRINDING R. P. King - Mineral Technologies ...

Industrial grinding machines used in the mineral processing ... 1/2 (2×9.81)1/2. 2ŒD. 1/2 m. 0.705. D. 1/2 m revs/sec. 42.3. D. 1/2 m revs/min. (8.8) ... Grate discharge Dry .... Let VB be the volume of steel balls in the mill, VMed be the .... the feed and from the breakage of material in the mill that is of size greater than size i.