The efficiency of a vertical mill is influenced by multiple working parameters, including six important parameters: pressure difference inside the mill, mill vibration, mill outlet temperature, mill roller pressure, fan air volume, and sealing status. The specific analysis is as follows.

　　When the vertical mill is working, the entire system is operated under a sealed negative pressure system, and only a stable internal pressure of the mill can ensure the stability of the grinding system. The fluctuation of air pressure difference inside the mill can lead to instability of the mill system, and poor airflow circulation inside the mill can cause vibration and other faults, which is not conducive to improving grinding efficiency. The vibration of the vertical mill also has a significant impact on the grinding efficiency. The general conditions for vibration generation are unstable material layer, excessive particle size of the material entering the grinding chamber, high material hardness and poor grindability, and the presence of unbreakable foreign objects such as iron in the grinding chamber. Vibration can seriously affect grinding production, affect product quality, and even damage machinery and equipment.

　　The exit temperature of materials is also an important parameter for measuring the production status of vertical mills. The exit temperature reflects the retention time of the material in the mill. If the exit temperature is too low, it indicates that the material layer is too thick, otherwise it is too thin. Excessive thickness of the material layer increases energy consumption, reduces grinding efficiency, and can easily cause vibration. Thin material layer will increase the wear of grinding rollers and discs, and also cause vibration, affecting the grinding efficiency.

　　The pressure of the grinding roller is a direct influencing parameter of the grinding efficiency of the vertical mill, and within a reasonable range, the two are directly proportional. The greater the pressure of the grinding roller, the greater the grinding efficiency. However, pressure regulation should be moderate. If the grinding pressure is too low, the material cannot be effectively ground; Excessive pressure can cause over grinding and damage to the grinding rollers and discs. Good use of hydraulic pressurization device for adjustment.

　　The air volume of the fan also has a significant impact on the grinding efficiency of the mill. The air volume is the power source for improving the material inside the mill and an important parameter that determines the grinding efficiency. Reasonable control of air volume helps to achieve high grinding efficiency.

　　The sealing condition of the vertical grinder is also an important parameter that affects its grinding efficiency. Because the entire vertical grinding system is operated in a sealed state, the quality of its sealing directly affects the normal operation of the mill. If the sealing is not good, it can cause dust to overflow and cause serious dust pollution, which undoubtedly poses a great threat to the operation of the vertical mill.