best way to determine the ball to powder ratio in ball
the maximum power draw in ball mill is when ball bed is 35 40 % by volume in whole empty mill volume. considering that ball bed has a porosity of 40 %, the actual ball volume is considered to be 21 24 % of the empty mill. now, in order to get an efficient milling action, 80 110 % of the pores in the ball bed must be filled with the actual particles to be ground. then, by doing simple calculation, the particles