The Working Principle of Dual-Planetary Ball Mill and the Establishment of the Discrete Element Mode

This paper describes the mechanism of a small dual-planetary ball mill which is used in the laboratory, and using the discrete element software PFC3D to establish corresponding model of the milling tank in dual-planetary ball mill and the ball medium in tank. The big wheel under different rotational speed affects the average contact stress and the different filling rate of 8 mm ball medium affects the average stress, which are applied to simulation research, and we draw the corresponding conclusion.