The working state of ultrafine vertical mill is influenced by the factors such as speed rate, filling rate, ball material ratio, length diameter ratio, lining plate and grinding medium size, and the factors are connected with each other and are complex.
In order to give full play to the grinding efficiency of ultrafine vertical mill, the influence of mill design operating parameters must be attached importance. The improper selection of grinding parameters will cause the efficiency of the ultrafine vertical mill to be greatly reduced, and even can not work normally.

Among the working parameters of ultrafine vertical mill, the speed rate and filling rate have the most significant influence on the working state of the ultrafine vertical mill.

Grinding process is the process of material decreasing from large particles. In different grinding stages, the influence of speed rate and filling rate on product granularity is different.