#### optimum ball mill charge calculation

Optimization of the make up ball charge in a 01/03/1992· The overall effect of a mixture of balls in the mill may be taken as the linear weighted sum Austin et al 1984e L S = Z mtSjj 14 /=1 L L Bi = m Sj Bo l / Z 15 l=1 r=l The ball charge in the mill is split into L ball classes with diameters in a 4x/2 ratio and mt is the relative mass frequency function of balls