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Rotating Vibrating Screen Blocking Causes During the normal operation of the vibrating screen, due to the various characteristics of the material, different shapes will result in plugging of various forms of mesh holes. The main reasons for the blockage are as follows:
1. A particle containing a large number of particles close to the separation point;
2. The moisture content of the material is high;
3. Spherical particles or materials having multiple contact points to the mesh holes;
4, static electricity will occur;
5. The material has a fibrous material;
6, more flake particles;
7. The woven mesh is thick;
8, thicker screen such as rubber screen, the hole shape design is unreasonable, did not reach the upper and lower, and the particles stuck. Because the particles of the material to be sieved are mostly irregular, the cause of the blockage is also varied;
The solution is to effectively prevent the screen of the vibrating screen from being blocked. Measures should be taken for the reasons for the above-mentioned screen plugging:
1. When the material has finer particle size, more shale content, and smaller sieve size, moisture plays a decisive role in the clogging of the screen.
2. When the moisture in the material is more than 5%, if the material is dried unconditionally, the sieve surface and the sieve hole should be selected in a targeted manner.
3. When the moisture is greater than 8%, wet screening should be used.
4. For materials with more flake particles, it is necessary to change the particle crushing mode and the particle size matching of different crushing processes.
Reasonable adjustment of the tension of the screen is an effective method to reduce the hole blocking of the screen. Reasonable tensioning force causes the screen to generate a slight secondary vibration with the support beam, thereby effectively reducing the occurrence of the hole blocking phenomenon. The tensioning hook is made into a constant force tensioning mechanism, that is, a spring is attached to the tension bolt.
Causes and treatment of blocking screen of rotary vibrating screen
The vibrating screen is a high-precision fine powder screening machine with low noise and high efficiency. It takes 3-5 minutes to change the net quickly. It is fully enclosed and suitable for screening and filtering of particles, powder and mucilage. The vibrating screen is made up of an upright motor as an excitation source. The upper and lower ends of the motor are equipped with an eccentric weight to convert the rotary motion of the motor into a horizontal, vertical, and inclined three-dimensional motion, and then transmit this motion to the screen surface. . Adjusting the phase angle of the upper and lower ends can change the trajectory of the material on the screen surface.