Should We Control the Rotational Speed of Grinding Millers

We all concern the control problems of the ball mill. When the ball grinding machine is grinding the raw material, the most use theory in this process is the control theory. The actual operation is bases on your own feeling. On the basis of theory and sum up the experience, we can have a good control of ball mill. According to the years producing experience, we will introduce the good method to control the rotation speed of ball mill. Before the use of ball mill, we should have a good setout. The adjustment of ball mill’s rotation speed also need the professional skills. If we can’t control the rotation speed properly, the production process of ball mills will be influenced and the consequence is very serious.

The rotation speed of ball grinder directly decides the rotation condition of the grinding media and the effect of the grinding work. When the rotation speed is low, the grinding media in the ball grinding mill will be elevated to the lower location. When the grinding media fall down because of the gravity of itself, the impact force of the ball is small and the grinding effect is strong. Then the ore will be grinded and the grinding effect is not good. When the rotation speed is high, and the grinding media will be elevated to a higher location. When the ball rose to a certain height, it will out of the barrel and fall down along a parabolic trajectory. The ball at the toss placement will have the bigger impact force. The ore will be crushed through the crush force. Then the grinding effect is the best. When the rotation speed has exceeds a certain limit, the balls in the grinding chamber will keep the rotation condition and won’t fall down. The grinding media will keep the centrifugal state. The balls have no impact force and the grind effect is little.

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