What is the impact of the grinding machine's ball loading on the grinding process? How much is the filling rate appropriate?

The amount of ball loading has a certain impact on the grinding efficiency. The ball has less grinding efficiency; the ball loading is too much, and the inner ball is easy to interfere during operation, which destroys the normal circulation of the ball and reduces the grinding efficiency.

Practice has proved that the amount of ball loading is related to the rate of rotation of the mill. When the mill rotation rate is low, more balls can be loaded. When the rotation rate is high, the ball loading amount can be less.

The media filling rate can directly reflect the amount of ball loading. When the rotation rate (ie, the working speed) is 80-85% of the critical speed, the filling rate is preferably 40-50%. When the high-speed grinding is 100-120% of the critical speed, the filling rate is about 35%.

For lattice ball mill : filling rate Ïˆ=40-45%

For overflow ball mills: filling rate Ïˆ=35-40%

In summary, on-site production should determine the fill rate based on ore conditions and product requirements.

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