Replacement And Repair Of Grinding Mill Grinding Roller

Date:2018-11-29 11:10:15
Replacement And Repair Of Grinding Mill Grinding Roller

Replacement and repair of drawing roller of grinding mill

Summary of contents: replacement and repair of the grinding roller, which is the main link in the maintenance work of the grinding mill. Generally working at full load, the front of the toothed roller can be used for 1-2 months, and the rear path is 2-3 months. In order to reduce the drawing cost and prolong the service life, the wire drawing roller can adopt the new drawing to be blunt-blunt, for a while.

The replacement and repair of the grinding roller is the main link in the maintenance work of the grinding mill. Generally working at full load, the front of the toothed roller can be used for 1-2 months, and the rear path is 2-3 months. In order to reduce the drawing cost and prolong the service life, the wire drawing roller can adopt the new drawing to be blunt-blunt. After a period of time, the fast roller and the slow roller are changed, and then the front-blunt, front-front replacement is adopted, and the process can be basically guaranteed. The effect is that the light roller can be used for one time for more than half a year. If the shape tolerance is appropriate, it can be used for about 2 years. If the concave waist phenomenon can be corrected in the grinding mill, the number of times of repairing from the machine will be greatly reduced.

In the case that the wire drawing and sand blasting meet the requirements, the shape tolerance of the grinding roller must also be corrected to ensure the grinding effect. For this reason, in the drawing or sand blasting of the grinding mill grinding roller, careful and careful grinding must be carried out before the drawing or sand blasting to correct the elliptical, concave waist or awl grinding phenomenon of the grinding roller. And with the aid of the dial indicator for the radial and end face of the grinding roller, the different axial degrees and non-parallelism are tested to ensure that the geometrical tolerance meets the requirements. Conditional can be used to check the dynamic balance and static balance. When drawing, it should be finely ground and finely grounded, and the cutting is performed with small entry amount to ensure the accuracy of the tooth top plane and the tooth surface smoothness.

Grinding mills should retain a small crest plane during summer or when processing high-moisture materials. Conversely, in the autumn and winter seasons or when processing low-moisture materials or hard materials, a large crest plane should be retained. Reduce the generation of fine slag, ensure the process effect, and extend the life of the wire drawing. The light roller is selected on the taper. The coarse-grained material has a large particle size, the value is 50-55mm, the front road heart mill is 40-45mm, and the middle and rear road is 30-35mm, so that there is a larger feed amount. It can ensure better process effect, and has better durability, which can extend the service life of one blasting. Through the careful operation and careful maintenance of the grinding mill, the flow and quality of each system are balanced and stable, the powder-making effect is achieved, and the purpose of high-quality, high-yield, high-efficiency and energy-saving is achieved, and the economic benefits and society of the powder are finally realized. benefit.

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