The Solution To The High Abrasion Of Steel Balls in Ball Mills (2)

1. Reasonable steel ball filling rate

When the speed of the ball mill reaches a certain level, the filling rate is large, the number of times the steel ball hits the material, the grinding area is large, and the wear is fast. The striking effect of large particle materials. On the contrary, the filling rate is too small and the grinding effect is weak.

At present, the filling rate of steel balls in the grinding operation of ore dressing plants is generally 45%~50%. According to the actual situation of each dressing plant, it is not a reasonable filling rate. Therefore, it is necessary to pass ore dressing tests to determine a reasonable filling rate. quantity.

2. Reasonable steel ball size and ratio

Because the steel ball in the ball mill is in point contact with the material, if the diameter of the steel ball is too large, the crushing force is also large, and the wear is too fast, and it is easy to cause the material to be broken in the direction of the penetration force, which affects the grinding efficiency. In addition, under the same conditions as the filling rate of steel balls, if the ball diameter is too large, the amount of steel balls will be less, the probability of crushing will be low, the phenomenon of over-crushing will be aggravated, and the particle size of the product will be uneven; Small, the grinding efficiency is low. Therefore, a reasonable steel ball size ratio will not only reduce the steel consumption of the ball mill, but also effectively improve the grinding efficiency.