## What Is The L D Ratio In A Ball Mill

Dec 06, 2004 The LD ratio of the ball mill was varied in four steps of1.75, 2.1, 2.79 and 3.49, and the ball charge filling ratio was varied in three steps of 15, 20 and 25. The experiments clearly indicated that the optimal LD ratio and the optimal ball charge filling ratio are different for each feed fineness.