What are the conditions for the selection of cement vertical grinding lubricants?

What are the conditions for the selection of cement vertical grinding lubricants?

An important step in ensuring the normal operation of the cement vertical roller mill is to lubricate it well. There are many functions of the lubricant, mainly to reduce the friction coefficient, reduce wear and lower the temperature. The performance characteristics of different types of lubricants will be different. Some of the lubricants will have better thermal shock resistance and oxidation resistance, while some lubricants will be almost the same, and the viscosity of the lubricant will be different. So, what are the conditions for choosing the right lubricant for cement vertical grinding, or the choice of cement vertical grinding lubricant?

1. Thermal shock stability and oxidation resistance

Because the volume of the cement vertical mill is not large, the amount of lubricating oil installed is limited. The oil temperature will be relatively high during operation. If the oil temperature is too high, some faults will occur, so in order to make the oil temperature not too high, Select a lubricant with good thermal shock resistance and strong oxidation resistance, so that the cement can be operated normally.

2, better anti-rust, anti-corrosion, anti-emulsification properties

If the environment of the cement vertical grinding work is relatively harsh, coal dust and moisture are relatively high, which will cause the lubricating oil to be easily contaminated. Therefore, in this case, it is necessary to select a lubricant with good rust, corrosion resistance and anti-emulsification properties. When the cement vertical mill is in a harsh environment, its performance will not change much.

3, the viscosity of the lubricant changes with temperature

The working position of the cement vertical mill is not fixed, so the temperature also changes from time to time, so the viscosity of the lubricant changes little with temperature, avoiding the formation of a lubricating film with too low viscosity, and avoiding the start of the cement vertical mill caused by excessive viscosity. It is difficult to operate.

4, good sealing performance

The sealing performance of the lubricant must be good, otherwise it is easily contaminated, resulting in changes in oil quality, affecting the normal production.