1, grinding ring manufacturing accuracy
As the milling machine works, the grinding ring that rotates with the spindle is one of the main wearing parts, so the manufacturing accuracy of the grinding ring directly affects the service life of the grinding ring, and the radial run out of the grinding ring and the heat treatment of the grinding ring are mainly controlled. Deformation, radial runout and internal diameter deformation will aggravate the impact and vibration of the roller and increase the additional load, thereby shortening the service life of the roller and the grinding ring.
2, the positive pressure of the roller and the gap between the grinding roller and grinding ring
The positive pressure of the roller is regulated by the external spring. The appropriate spring pressure must be adjusted according to the material’s hardness, particle size, moisture, feed particle size and the desired finished product’s fineness. The gap between the two is an important parameter that directly affects the yield and fines content. Generally speaking, the material processed by the user is relatively fixed. At this time, the gap between the grinding roller and the grinding ring should be adjusted according to the size of the feed material. If the clearance is too large or too small, the yield and fineness will be affected and m increase the vibration of the mill. In addition, after the mill has worked for a certain period of time, the clearance between the grinding roller and the grinding ring will gradually increase, and adjustments should be made in time.
3, the lubrication of the host and classifier
Milling machine and classifier are all lubricated with oil. The main shaft of the main machine and the three grinding roller parts are provided with a lubricant tank on the outside. All the bearings are immersed in the lubricant to achieve reliable lubrication and cooling. The user can observe the level of the oil level on the tank and fill it with oil as required.
Guilin Hengda Mining Machinery Co.,Ltd is a professional grinding equipment manufacturer, the main products are HD series raymond mill, MR series micro powder mill, HGM series ultrafine mill etc, more info please visit www.hengdamill.com.
8th June 2018