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How to solve the problem of powder bridging, clogging, and difficult feeding?

Information sources：本站 | Release date： 2020-09-02 15:13:19 | Browse volume：7043

Summary：

During the powder conveying process, the powder may bridge and agglomerate, causing the equipment to run poorly. For example, the silo of the vacuum feeder is blocked, the silo of the small bag feeding station is blocked, and various other equipment and The blockage of the pipeline seriously affects production. How to solve the problem of difficult feeding of powder bridges is a problem that has to be considered. Below we briefly analyze the types and solutions of arching or bridges:
1) Intermeshing arch: the powder materials intermesh each other to achieve a force balance state, thus forming a material arch;

2) Compressed arch: The powder material is subjected to the pressure of the silo wall, which increases the consolidation strength and causes arching;

3) Cohesive arch: Some powder materials with strong cohesiveness may be formed by the higher moisture content in the silo, and the material will increase the adhesion between the material and the silo wall due to moisture absorption or static electricity. arch;

4) Air pressure balance arch: Due to poor air tightness in some silos, air enters. When the upper and lower air pressures in the silo reach equilibrium, a material arch is formed.

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