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Blockage Reasons and Solutions of Vibrating Screen

When the vibrating screen is working, it sometimes encounters the problem of clogging of the screen. This article analyzes the blockage reasons and solutions of vibrating screen.

vibrating screen manufactured
vibrating screen manufactured by Daswell

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The reason why the vibrating screen is blocked

In actual production applications, there are two factors that cause the screen of the vibrating screen to block.

One is the blockage formed by the particles with the similar aperture of the screen being embedded in the mesh. There is also a situation where the materials are sticky or attracted to each other due to static electricity, resulting in accumulation and agglomeration. This caused a blockage of the screen. Therefore, to ensure the throughput, the cleanliness of the screen mesh must be maintained. Summarized as follows:

  • The density of the material is high, and the selection of the screen is inappropriate;
  • The material to be screened is wet;
  • The material to be screened has static electricity or is easy to stick;
  • The screened material is lighter;
  • The screen wire has a large diameter and is not easy to blank;
  • The bottom of the screen lacks a net cleaning device (rubber bouncing ball).

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 vibrating screen
Daswell 3YA1237 vibrating screen
Model Screen

Specification(mm)

Layers Sieve

Pore Size (mm)

Max. Feeding Size

(mm)

Capacity

(m3/h)

Double

Amplitude(mm)

Motor Power

(kw)

Model of

Motor

2VS1237 1200×3700 2 3-50 300 10-80 11 Y160M-4
3VS1237 1200×3700 3 3-50 300 10-80 8 11 Y160M-4
4VS1237 1200×3700 4 3-50 300 10-80 8 11 Y160M-4
2VS1548 1500×4800 2 3-100 300 22-160 8 15 Y160L-4
3VS1548 1500×4800 3 3-100 300 22-160 8 15 Y160L-4
4VS1548 1500×4800 4 3-100 300 22-160 8 15 Y160L-4

Treatment measures for screen blocking

If the material is blocked by the screen, the first thing to consider is whether the particle size of the material to be screened is appropriate. More important is the characteristics of the screening material. If it is sticky, it will easily stick to the screen and cause a drop in screening efficiency. You can properly adjust the amplitude of the vibrating screen to see the effect.

In addition, the poor self-cleaning ability of the screen is likely to lead to clogging of the mesh. At this time, if the vibrating screen permits, you can install a ball support plate. It uses the principle of a bouncing ball to clean the screen.

vibrating screen
Daswell 3YA1860 vibrating machine
 vibrating machine
Daswell 3YA1860 vibrating machine

Model Screen

Specification(mm)

Layers Sieve

Pore Size (mm)

Max. Feeding Size

(mm)

Capacity

(m3/h)

Double

Amplitude(mm)

Motor Power

(kw)

Model of

Motor

2VS1848 1800×4800 2 3-100 300 32-276 8 18.5 Y180M-4
3VS1848 1800×4800 3 3-100 300 32-276 8 18.5 Y180M-4
4VS1848 1800×4800 4 3-100 300 32-276 8 18.5 Y180M-4
2VS1860 1800×6000 2 3-100 300 65-586 8 22 Y180M-4
3VS1860 1800×6000 3 3-100 300 65-586 8 22 Y180M-4
4VS1860 1800×6000 4 3-100 300 65-586 8 22 Y180M-4
2VS2160 2100×6000 2 3-100 300 81-720 8 30 Y200L-4
3VS2160 2100×6000 3 3-100 300 81-720 8 30 Y200L-4
4VS2160 2100×6000 4 3-100 300 81-720 8 37 Y200L-4

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  • Analyze and judge the materials to be screened, and select the appropriate screen.
  • When screening materials with fine particles, water content, and mud content, the materials are easy to bond. When the moisture content is greater than 5%, it needs to be dried, dehydrated and then sieved. If the moisture is greater than 8%, wet screening is required.
  • For materials with many flake particles, pay attention to adjusting the crushing method of the materials and the particle size matching of different crushing processes.
  • The vibrating screen is equipped with different numbers of rubber elastic balls under different meshes.
  • Reasonable adjustment of the tension of the vibrating screen is an effective way to reduce the hole blocking of the screen. Reasonable tension force makes the screen and the supporting beam produce slight secondary vibration. This effectively reduces the occurrence of plugging, which can better make the screen work normally.
Daswell vibrating screen
Daswell 4YK2460 vibrating screen machine
Model Screen

Specification(mm)

Layers Sieve

Pore Size (mm)

Max. Feeding Size

(mm)

Capacity

(m3/h)

Double

Amplitude(mm)

Motor Power

(kw)

Model of

Motor

2VS2460 2400×6000 2 3-150 300 90-810 8 37 Y225S-4
3VS2460 2400×6000 3 3-150 300 90-810 8 37 Y225S-4
2VS2870 2800×7000 2 3-200 300 150-1000 8 37 Y225S-4
3VS2870 2800×7000 3 3-200 300 150-1000 8 37 Y225S-4
2VS3073 3000×7300 2 3-200 300 180-1300 8 30×2 Y200L-4
3VS3073 3000×7300 3 3-200 300 180-1300 8 30×2 Y200L-4

If you want to know more about blockage reasons and solutions of vibrating screen, please contact we Daswell, we will reply as soon as possible.

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