How to maintain raymond mill grinding rollers?

Raymond mill is mainly used for grinding mineral products with wide application. The most important spare part is the grinding rollers. The rollers with high quality and correct maintenance could ensure normal operation and efficient use. So how to maintain the grinding rollers and buy the proper wearing parts.
 

Now, as a professional manufactures with 30+ years experience, Baichy machinery will share some good ideas:

1. Regular cleaning

After the Raymond mill has been in operation for a period of time, it is necessary to clean the grinding rollers. The accumulation of ground materials on the surface of the rollers can affect the grinding efficiency and accuracy. Use appropriate tools such as soft - bristled brushes to carefully remove the adhered powder and debris. Make sure to clean after each work shift or at regular intervals according to the production schedule to prevent material buildup from hardening and becoming more difficult to remove.

2. Lubrication

Lubrication of the grinding roller bearings is crucial. High - quality lubricating oil or grease should be selected according to the manufacturer's recommendations. The lubrication interval depends on factors such as the operating speed and load of the mill. Generally, for mills operating under normal conditions, lubrication can be carried out once every 1 - 2 weeks.
When lubricating, ensure that the lubricant is evenly distributed around the bearing. Excessive or insufficient lubrication can lead to problems. Over - lubrication may cause the lubricant to leak and contaminate the ground material, while under - lubrication can lead to increased friction and wear of the bearings.

3. Inspection for wear and tear

Regularly check the wear of the grinding roller surface. This can be done through visual inspection and measurement. Use precision measuring tools such as calipers to measure the diameter and height of the roller at different points to monitor the rate of wear.
If the wear exceeds a certain limit (usually specified by the equipment manufacturer), the grinding roller may need to be replaced or repaired. For example, if the wear causes a significant change in the grinding gap between the roller and the grinding ring, it will affect the fineness of the ground product.

4. Tightening and adjustment of parts

Check the fastening bolts of the grinding roller regularly. Vibrations during the operation of the mill can cause the bolts to loosen. Loose bolts can lead to misalignment of the grinding roller and affect the stability of the grinding process. Tighten the bolts to the specified torque according to the equipment manual.
At the same time, adjust the position and pressure of the grinding roller as needed. This adjustment helps to maintain the optimal grinding force and contact between the roller and the grinding ring, ensuring efficient and uniform grinding.

5. Proper operation during use

Control the feed rate of the material to the Raymond mill properly. An excessive feed rate can overload the grinding rollers and lead to accelerated wear and even damage. The feed rate should be adjusted according to the capacity of the mill and the characteristics of the material to be ground.
Also, ensure that the mill operates within the specified speed range. Deviating from the correct speed can cause abnormal wear of the grinding rollers due to improper centrifugal forces and grinding dynamics.

The loss of raymond mill wearing parts is determined according to the grinding material hardness. The most serious wearing is the grinding rollers, so avoiding to affect normal production, when buying Raymond mill, it should buy a set of roller assembly for backup.

Baichy Raymond mill is widely used in barite, calcite, talc, marble, limestone, dolomite, lime, activated carbon, bentonite, kaolin, phosphate rock, gypsum, glass, manganese ore, titanium ore, chromium ore, refractory material with Mohs hardness below 7 and water content below 6%. If you encounter any problems in the process of disassembly, installation and maintenance of raymond mill wearing parts, you can call our after-sales service phone for consultation, our company will arrange professionals to explain to solve the problems.

People Also Frequently Asked-FAQ:

1.What are main parts of raymond mill?

Main parts of Raymond mill include grinding roller, grinding ring, powder collector, classifier, air blower, reducer, base plate, shovel, Raymond mill pendulum, star stack, etc.

2.How does a Raymond roller mill work?

First material should be crushed into the desired size by Jaw Crusher, and delivered to the Silo by Bucket Elevator. Our Designed Vibrating Feeder will feed the material into the grinding room. With the air current from the Air Blower, those powder conforms to the fineness degree will be blew into the cyclone collector and those powder that is not consistent with the desired size will return to the grinding room to be re-ground. The whole system is airtight circulation, and the circulatory flow under the negative pressure.

3.How do I operate the Raymond Mill?

The operation of Raymond mill grinding production system includes the before starting operation and after startup operation details of Raymond mill machine.