Causes and prevention methods of blocking the vibrating scre
Gaozhuo Click 09-04-2020
Causes and prevention methods of blocking the vibrating screen
When the vibrating screen equipment is in normal operation, due to various characteristics of materials, different shapes of materials will produce various forms of screen plugging.The reasons are as follows:
1. Contains a large number of particles close to the separation point;
2. Material water content is high;
3. Spherical particles or materials with multiple contact points on the sieve hole;
4. Static electricity will occur;
5. Materials of fibrous nature;
6. More flake particles;
7. Woven screen wire through thick
8. For thick screen like rubber screen, the hole shape design is not reasonable, which does not reach up to small and down to large, and makes the particles stuck.
Most of the material particles that need to be screened in the vibrating screen are irregular, so the reasons for blockage are varied. In order to effectively prevent the blocking of the vibrating screen, measures should be taken according to the above reasons. When the material size is fine, the mud content is more, and the sieve size is small, the water plays a decisive role in the screen blocking. When the moisture in the material is greater than 5%, if the material is unconditionally dried, the screen surface and mesh should be selected. When the moisture is greater than 8%, wet screening should be used. For materials with more flaky particles, it is necessary to change the material crushing mode and the particle size collocation of different crushing modes. Reasonable adjustment of the tensioning force is an effective way to reduce the screen mesh hole blocking, reasonable tensioning force makes the screen screen with the support beam to produce a slight secondary vibration, so as to effectively reduce the phenomenon of hole blocking, the specific approach is to make the tensioning hook into a constant force tensioning mechanism, that is, on the tensioning bolt with a spring.
