Introduction：Water content Experiments show that adding surface active material to water containing material can increase the activity and dispersibility of materials, and improve the screening condition. Besides, using the screen deck that is made up

Water content

Experiments show that adding surface active material to water containing material can increase the activity and dispersibility of materials, and improve the screening condition. Besides, using the screen deck that is made up non-hydrophilic materials also can improve the screen efficiency.

2. Silt content

The soil is easy to knot and lock the mesh in the screening process. Clayey materials and viscous materials can only be screened with large mesh in some special cases. Wet screening is spraying water on the material that is moving along the screen deck, and pre-desliming before screening.

3. Particle characteristic

The particle characteristic mainly refers to the content of various grained materials that have specific influence on the screening process. When the difficult screening material is much more than other fractions, the screening process is better. The particle characteristics also include the shape of particles. It is easier to screening for those particles who have close three-dimensional size, such as spheres and polyhedrons. In other conditions, it is more difficult to screening for those particles with large different sizes, such as slice, strip and weird shape.

4. Density characteristics

There is no effect on screening effect if all particles are same density. However, if the density of coarse and fine particles are different, the situation is totally different. If the coarse-grained density is small, then fine-grained density is large. In contrast, coarse-grained density is larger and fine-grained density is small.

Two. Screen Performance