Why is the vibrating screen screen blocked?/Causes and solutions of screen blockage
When the rotary vibrating screen is in normal operation, due to various characteristics of the material, different shapes will cause various forms of screen hole blockage. This article mainly describes the cause analysis of screen clogging, and moisture plays a decisive role in the clogging of the screen.
Reasonable adjustment of the tension force of the screen mesh is an effective method to reduce the blockage of the screen mesh. The reasonable tension force causes the screen mesh and the supporting beam to generate a slight secondary vibration, thereby effectively reducing the occurrence of the hole blocking phenomenon. The specific method is: The tensioning hook is made into a constant force tensioning mechanism, that is, a spring is added to the tensioning bolt.
If you have questions about vibrating screen, you can contact us. Dayong Vibration Equipment Co., Ltd. is a production expert in the vibrating screen industry and can customize solutions for you according to your needs.
When the rotary vibrating screen is in normal operation, due to various characteristics of the material, different shapes will cause various forms of screen hole blockage. The main reasons for the blockage are as follows:
1. Contains a large number of particles close to the separation point;
2. The moisture content of the material is high;
3. Spherical particles or materials with multiple contact points to sieve holes;
4. Static electricity will occur;
5. Materials with fibrous materials;
6. There are more flake particles;
7. The braided screen wire is thick;
8. For thicker sieves such as rubber sieves, the hole shape design is unreasonable, which does not reach the upper small and the lower large, so that the particles are stuck. Because of the material that needs to be screened
Particles are mostly irregular and, therefore, the causes of clogging are varied.
Solution
In order to effectively prevent the blockage of the vibrating screen mesh, measures should be taken for the above-mentioned reasons for the blockage of the screen holes:
1. When the particle size of the material is fine, the mud content is large, and the screening particle size is small, the water will play a decisive role in the clogging of the screen.
2. When the moisture in the material is greater than 5%, if the material is dried unconditionally, the screen surface and screen hole should be selected in a targeted manner.
3. When the moisture content is greater than 8%, wet screening should be used.
4. For materials with more flake particles, it is necessary to change the material crushing method and the particle size matching of different crushing methods.
Reasonable adjustment of the screen tension is an effective method to reduce the blocking of the screen. The reasonable tension causes the screen and the supporting beam to generate a slight secondary vibration, thereby effectively reducing the occurrence of blocking. The specific method is: The tensioning hook is made into a constant force tensioning mechanism, that is, a spring is added to the tensioning bolt.
If you have questions about vibrating screen, you can contact us. Dayong Vibration Equipment Co., Ltd. is a production expert in the vibrating screen industry and can customize solutions for you according to your needs.
