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A Number of Factors That Affect the Separation Efficiency

There are a number of factors that affect the separation efficiency of the trommel, which include:

 

(1) Characteristics of the feed

The nature of the material is mainly the particle size characteristics and the water content and mud content of the material. Particles less than 3/4 of the mesh size are easy to sieve; Particles larger than 3/4 of the mesh size are difficult to screen. However, the particle size of 1~1.5 times the mesh size is the most likely to hinder the mesh. Therefore, the more the material is easy to screen, the higher the screening efficiency of the sieve, the lower the opposite. In addition, the moisture content of particles has a great influence on the screening efficiency, and the surface water and the internal water of particles contain moisture, and the internal water has little influence on the screening efficiency. The higher the surface water content, the easier it is to make fine particles into groups, but also adhere to the surface of large particles and the sieve, making the relative particle size of particles larger and blocking the sieve.

 

(2) the type and working parameters of the sieve.

Including the shape and mesh size of the sieve, the movement of the sieve and the size of the sieve, the inclination of the screen surface, etc..

 

(3) Speed of rotation of the trommel screen

 

(4) Feed rate

 

(5) Residence time in the rotating drum

 

(6) Angle of inclination of drum

 

(7) Number and size of screen apertures

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