What is the difference between Ultrafine grinding Mill and Raymond Mill?

Ultrafine grinding mill and Raymond mill are two commonly used equipments for grinding stone powder in the mining industry. The two devices belong to vertical mills, and the difference is not very big in appearance. So what’s the difference between these two mills? How to choose? Let’s analyze it together.

1. The composition and structure of Ultrafine grinding mill and Raymond mill are different

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

Raymond Mill

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.

Ultrafine Grinding Mill

The number of grinding rollers in the Ultrafine grinding 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 Ultrafine grinding mill is twice that of the Raymond mill.

2. The applicable materials of Ultrafine grinding mill and Raymond mill are different

Raymond Mill

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.

Ultrafine Grinding Mill

The hardness of the materials that can be ground by the Ultrafine grinding 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.materials processed by mills

3. The production capacity of Ultrafine grinding mill and Raymond mill is different

Raymond Roller Mill

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.