What should I do if the vertical roller mill grinding roller and grinding disc wear too fast?

What should I do if the vertical roller mill grinding roller and grinding disc wear too fast?

Compared with the traditional grinding equipment, the vertical roller mill appears late and has a short development time, but its excellent technical performance has made it widely used. As a key component of the vertical roller mill, the wear of the grinding roller and the grinding disc is too fast, which plagues many users. The following analysis is carried out and corresponding measures are proposed.

Pay attention to the use and balance of nitrogen pressure during the production of vertical roller mill. The nitrogen pressure must be given according to the actual grinding pressure of 60% to 70%. The main function of the nitrogen balloon is energy storage damping. Therefore, the above proportional relationship must be followed when using nitrogen pressure and grinding pressure. High grinding pressure and low nitrogen pressure produce vibration. The nitrogen pressure is high, the grinding pressure is low, and the grinding roller can not overcome the rebound of nitrogen gas to generate vibration. Reasonable use can effectively restrain the vibration in this aspect and effectively prevent the wear of the grinding roller and the grinding disc. In addition, the nitrogen pressure between the nitrogen balloons must be the same, otherwise the dynamic effects generated between the individual grinding rolls are different. Breaking the balance will generate vibration, and the probability of wear will increase.

vertical roller mill

In the production process of the vertical roller mill, plastic deformation of the grinding roller and the grinding disc is prevented. All operating systems and equipment require reasonable rest, otherwise fatigue will occur, resulting in overload operation and equipment accidents. In production, it is necessary to check the vertical roller mill regularly, leaving a certain amount of time for the mill to rest. In the case that the temperature of the grinding material and the drying capacity can meet the requirements, the grinding temperature is reduced as much as possible. Because the higher the temperature of the metal, the greater the probability of plastic deformation, then a grinding roller that runs with great tension produces plastic deformation, which is also very fast.

The wear of the grinding roller and the grinding disc of the vertical roller mill is objectively an intangible consumption, and to prevent it from being worn too quickly, it is necessary to pay attention to the details in the operation.

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