The main reasons for the blockage of the sieve holes are as follows: (1) Contain a large number of particles close to the separation point of the screen; (2) The material has a high water content; (3) Spherical particles or how to prevent the vibrating screen from blocking the holes

When sieving with a vibrating screen, according to the nature of the material, various forms of sieve hole blockage will occur. The main reasons for the blockage of the sieve are as follows: (1) Contain a large number of particles close to the separation point of the sieve; (2) The material has a high water content; (3) Spherical particles or materials with multiple contact points to the sieve; (4) The material itself has strong static electricity; (5) Fibrous and dendritic materials; (6) There are many flake particles in the material; (7) The woven screen wire is thick.

Because most of the material particles that need to be screened are irregular, the cause of blockage is also diverse. In order to effectively prevent the screen of the vibrating screen from clogging, measures should be taken to address the reasons for the clogging of the above-mentioned screen holes. When the material particle size is finer, the mud content is more and the sieving particle size is smaller, the water will play a decisive role in the blockage of the screen. When the moisture in the material is greater than 5, if the material is dried unconditionally, the screen surface and sieve holes should be selected. Reasonable adjustment of the screen tension is an effective method to reduce the hole blocking of the screen. The reasonable tension causes the screen to produce a slight secondary vibration with the supporting beam, thereby effectively reducing the occurrence of hole blocking.

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