The overflow ball mill has the advantages of simple structure and convenient maintenance. Since the discharge pipe is cast with reverse thread, large ore and steel balls are not easily discharged outside the machine. The disadvantage is that the production capacity per unit volume is low, so the treatment volume is relatively low, and it is easy to produce excessive pulverization. The advantage of the lattice type mill is that the mine discharge speed is fast, the over-pulverization of the mine can be reduced, and the output per unit volume can be increased, which is higher than that of the overflow ball mill. Its disadvantage is that the structure is complicated, the lattice type discharge is easy to block the grid plate, and the maintenance is more difficult and complicated, and the operation rate is relatively low.
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