Knowledge

The reasons for the incomplete dewatering of the dewatering screen may be the influence of material properties, operational factors and working parameters. The following is a detailed introduction:

1. The influence of material properties

The vibration dewatering screen material with a particle size less than 3/4 of the mesh size is easy to steal through the sieve hole, which is called easy to screen; the particle is larger than 3/4 of the mesh size, and it is difficult to pass through the sieve hole. The effect of the special slurry dewatering screen used for water-coal slurry is called difficult to glue particles; the particle size is 1-1.5 times the mesh size. The particle is called a particle. Therefore, the screening contains a large amount of finer materials such as J, and the auxiliary screening method can be increased. The auxiliary screen with a larger mesh size is used to pre-screen the products on the screen.

2. The influence of operational factors

The dewatering screen should maintain a high screening efficiency, the feed should be uniform and continuous, and the vibrating screening machine should be fed moderately.

3. The influence of working parameters

    1. Screen surface type: The screen surface usually has steel bars, steel wires, punched steel plates, rubber, polyurethane, etc. Their influence on screening efficiency is mainly related to their area: In addition, the wear resistance of various materials is also different.

    2. Mesh shape: square or rectangular mesh application teaching.