Analysis of the reasons for aggravating the serious wear of the grinding roller-Vertical Roller Mill
The grinding roller is the part used to grind the material in the vertical grinding equipment. It is subjected to huge pressure and vibration during operation, and the operating environment is a high temperature environment of about 200 °C, so the wear is relatively serious. In addition, there are some other reasons, which will increase the wear degree of the grinding roller.
Poor bearing quality
After the start of grinding, the vibration of the bearing with poor quality is obviously too large, and the feeding amount is low, which can easily lead to bearing damage. In order to reduce the interruption of the entire vertical mill system after the bearing is damaged, it is necessary to use high-quality bearings to reduce the process. tedious, affecting the process of work.
Insufficient amount of lubricating oil for grinding rollers
Insufficient amount of lubricating oil will cause serious friction between the grinding roller and the bearing, generate a lot of heat, which cannot be dissipated in time, and the poor lubrication effect will affect the operation of the machine and reduce its service life.
Poor type of lubricating oil
Lubricants must be of good quality and cost-effective in order to achieve certain benefits. The type of lubricating oil is poor, and the lubricating effect is not good, so that a good oil film cannot be formed between the bearing and the slideway, and the quality of the oil is poor. The bearing temperature is high, the service life of the bearing is seriously shortened, the waste of materials is caused, the progress of the whole project is seriously affected, and the profit of the enterprise is reduced.
Uneven distribution of incoming materials
Daily observation and recording of the grinding materials shows that when there are many layers of materials, the work of the grinding rollers will increase, the corresponding wear will be more serious, and the materials will accumulate; Center, resulting in long-term high-load operation of the roller bearing and damage to the bearing.
Generally, vertical roller mill is equipped with 3-6 grinding rollers, each of which is mounted on the same shaft and rotates at different speeds to achieve a good grinding effect. In order to ensure the efficient operation of the mill, the operator must regularly check the wear degree of the grinding roller, find and solve it in time, which can not only prolong the service life of the components, but also improve the working efficiency of the whole machine!