The rotate speed of the ball mill



The rotate speed of the ball mill

The rotate speed of the ball mill directly determines the motion state of the steel ball in the barrel and the effect of grinding operation.

When the rotate speed is low, the height of the ball in the ball mill is small, and the gravity of the ball itself slides and rolls down from the top of the ball load, in a state of falling. At this time, the impact force of the ball is small, but the grinding effect is strong. The ore is mainly ground and crushed, and the grinding effect is not high.

When the rotate speed is high, the ball is lifted high.After the ball rises to a certain height, it breaks away from the cylinder body and falls along the parabola trajectory.It has a great impact on the drop point, the ore is broken by impact, and the grinding efficiency is the highest.

When the ball mill rotate speed exceeds a certain limit (the revolution is very high), the ball rotates with the cylinder and does not fall, in the centrifugal operation state.At this time there is no impact on the ball, the grinding effect is also very small to stop grinding.

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