球磨机内单个研磨介质运动的理论分析

Theoretical Analysis of Movement of One Single Ball in Ball Mills

针对传统研究对球磨机肉单个研磨介质的运动没有深入了解的问题,采用理论分析的方法,分别讨论单个介质在不考虑自转与考虑自转两种情况下的介质运动规律,探讨介质与筒壁相对滑动、介质滚动及磨擦力等对介质运动的影响。结果表明:球磨机转速及介质与筒壁的接触摩擦系数对介质运动上升高度有很大影响;对比两种情况下的运动,结果显示:自转对研磨介质运动的影响也很大。

Considering the lack of deep understanding on the motion mechanism of the single grinding medium through various traditional studies, two cases of the charge motions of single ball medium with and without rotary were discussed respectively by the theoretical method. The effects of relative slip of ball and shell, roll of ball and friction on ball motion were researched. It was found that the height of the ball when it was climbing along the shell was influenced by the rotational speed of the ball mill and the friction coefficient when the ball and the shell contacted each other. Moreover, a comparison was done to the movement in both eases aad it was found that the charge motion was also influenced by the antorotation of the ball.