辊

Coarse material entering the mill is crushed between the ring and rollers.

进入磨机的粗料压碎于辊和钢环之间。

These rolls are corrugated cylinders, usually of the spiral type.

粉碎辊是波纹式滚筒， 还常是螺旋割纹式。

Roller mills grind essentially by crushing and attrition.

辊磨机主要靠挤压和摩擦研碎物料。

The roller supports at A and B prevent transition in the vertical direction but allow rotation.

A和B处的辊轴支承不允许沿竖直方向平动，但允许转动。

The oversize is reduced by roll crushers to the correct size of coal.

大粒煤再用对辊压碎机压碎到要求的粒度。