The critical speed of the mill, &c, is defined as the speed at which a single ball will just remain , In equation 814, D is the diameter inside the mill liners and Le is the effective length of the , steel balls in a ball mill, or large lumps of ore in an
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Know MoreThe critical speed of the mill, & c, is defined as the speed at which a single ball will just remain against the wall for a full cycle At the top of the cycle =0 and Fc Fg (85) mp & 2 cDm 2 mpg (86) & c 2g Dm 1/2 (87) The critical speed is usually expressed in terms of the number of revolutions per second Nc & c 2 1 2 2g Dm 1/2 (2×981)1/2 .
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