迄今为止,关于研磨体在装有普通圆断面衬板磨机内的运动规律的研究,是比较成熟的。如对研磨体脱离角的研究,当衬板形状、研磨体填充率、研磨体和物料的混合比以及磨机转速一定时,各层研磨体的脱离角是一个不变的常数。改变这些因素中的任何一个,则脱离角就会发生变化。脱离角确定后,研磨体从衬板表面抛出后即以一定轨迹降落到预定的位置上,即各层研磨体的降落点位置是固定不变的。对于六十年代初期才问世的角螺旋衬板, So far, the research on the law of motion of grinding body in the mill with ordinary round cross-section lining is relatively mature. For example, the detachment angle of the grinding body is constant when the liner shape, the filling rate of the grinding body, the mixing ratio of the grinding body and the material and the speed of the mill are constant. Change any of these factors, then the angle will be changed. After the detachment angle is determined, the grinding body drops from the surface of the lining plate to a predetermined position after being thrown out, that is, the position of the landing point of each grinding body is fixed. For the early 1960s came out of the angle spiral lining,