Vibrating screen in normal operation, due to the various characteristics of the material, different shapes will have various forms of mesh blocking.
The main reasons for congestion are as follows:
1, contains a large number of particles close to the separation point;
2, the material moisture content is higher;
3, spherical particles or mesh with multi-point contact material;
4, there will be static electricity;
5, the material has a fibrous material;
6, flaky particles more;
7, weaving screen silk after rough;
8, rubber screen and other thick mesh, hole design is not reasonable, did not reach the next big big, leaving the particles stuck.
Because of the material that needs to be screened, most of the particles are irregular, so the cause of the clogging is also varied.
In order to effectively prevent the sieve sieve shaker, sieve should be targeted for the reasons for blocking the measures taken:
1, when the material size is small, more mud content, and the smaller sieve size, the water on the sieve plug play a decisive role.
2, when the material is more than 5% moisture, if unconditional drying of materials, to deal with the screen surface, mesh for targeted choice.
3, when the moisture is greater than 8%, should be used wet screening.
4, the flaky particles more material, you need to change the material crushing method and different crushing process flow with the granularity.
Reasonable adjustment of the screen tension is to reduce the screen plugging an effective method of reasonable tension so that the screen mesh with the support beam produced a slight secondary vibration,
Thereby effectively reducing the occurrence of blocking phenomenon, the specific approach is to make the tension hook constant force tensioning mechanism, that is, to install the spring on the tension bolt.
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