If the feeding is too small, the self impact of LM vertical roller mill steel ball will increase, resulting in media waste; If LM vertical roller mill is fed too much, the grinding capacity of LM vertical roller mill will be insufficient, resulting in saturation.

Therefore, it is necessary to feed in strict accordance with the feeding standard. The grinding particle size of LM vertical roller mill is too large. The grinding particle size of LM vertical roller mill is too large, so it is difficult to adapt to the impact and action of the grinding body.

However, the first bin of LM vertical roller mill will be broken, and the amount of steel balls will be increased to enhance the impact and grinding capacity. This situation is easy to cause unreasonable crushing in one bin. Generally, the grinding particle size of LM vertical roller mill should be controlled at 15mm.