the smallest mobile ball mill with input and discharge
· Experimental feed and discharge ball size distribution of an industrial 3.7 m by 4.9 m ball mill with grate discharge 19.1 mm (0.75 in) nominal opening. and 8 is the Dirac Delta function defined as 31 8(d -dk) = 0 d dk f 8(d -dk) d(d) = 1 The outflow consisting approximately of balls of size do may also be expressed in terms of a Dirac