An overfilling indicator for wet overflow ball mills ...
mill length inside liners (m) M f. ... ): (27) S 0 ball = R m 2 cos1 R R m(R ) 2 R m bb 2 where the cross section area of the stationary ball media at the discharge trunnion end, S 0 ball, can be determined from the ball charge volume fraction and ball mill radius by Eq. : ...