Addition of pebbles to a ball-mill to improve grinding efficiency - Part 2

Concerns about accumulation of 'scats' (coarse particles) have also been analysed. The effect of scats on ball-mill productivity was tested and it was concluded that scats may not have an adverse effect on productivity in secondary ball-mills and composite mills, if large balls are present. The use of a trommel on the ball-mill is suggested to solve related problems in the classification circuit.