The Difference Between Ring Roll Mill and Raymond Mill

June 14,2022

Ring roller mill and Raymond mill are two commonly used equipments for grinding stone powder in the mining industry. Both of them belong to vertical mills, and the difference is not very big in appearance. Therefore, users who need to buy mills should ask Now, what's the difference between the two? Let's analyze it together.

 

Ring Roll Mill

 

The composition and structure of ring roller mill and Raymond mill are different

 

The difference in the composition and structure of the ring roller mill and the Raymond mill is mainly reflected in the design of the grinding roller.

 

The number of grinding rollers of Raymond Mill is divided into 3 rollers, 4 rollers, 5 rollers and 6 rollers. The spring plum blossom frame assembly is adopted. The grinding roller revolves around the central axis and rotates on its own at the same time, and the material is fed into the grinding roller by the shovel blade. Between the grinding roller and the grinding ring, the material is crushed by rolling between the grinding roller and the grinding ring.

 

The number of grinding rollers in the ring roller mill can be as high as 36, which revolve around the main machine. Under the action of the high-pressure spring and centrifugal force, the grinding rollers swing outward horizontally and are tightly pressed on the grinding ring. The material is ground due to the rolling of the grinding rollers. purpose of powder.

 

Because of the participation of the high-pressure spring, under the action of the same power, the roller pressure of the ring roller mill is twice that of the Raymond mill.

 

The applicable materials of ring roll mill and Raymond mill are different

 

Raymond mill is mainly used in building materials, mining and metallurgy industries. The grinding fineness is between 80-400 mesh. Through technical improvement, the grinding fineness can reach 600 mesh. It is suitable for grinding materials with Mohs hardness below grade 7. , Humidity can not exceed 6%, non-flammable and explosive, such as limestone, talc, marble, kaolin, fluorite, etc.

 

The hardness of the materials that can be ground by the ring roller mill is higher than that of the Raymond mill. The hardness of the materials that can be ground can reach 9.2 on the Mohs scale, such as limestone, marble, dolomite, etc. It can grind 30-100 mesh coarse powder, and can also grind Grind fine powder around 325-2500 mesh.

 

Ring roll mill and Raymond mill have different production capacities

 

Raymond is ground into fine powder, and the sieving rate can reach 99%. The three-dimensional structure reduces the floor space. Raymond mills have different numbers of rollers and different feeding particle sizes, which are below 15-30mm, respectively, and the production capacity is 1-90 tons per shift.

 

The number of grinding rings of different ring roller mills is different. There are 3 rings and 4 rings. The feed particle size is below 20mm, and it can process 0.5-15 tons of materials per hour. The production volume is slightly larger than that of Raymond mills.

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