What factors can affect the screening effect of a linear vibrating screen

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Published:

2023-02-03

Linear vibrating screen uses vibrating motor excitation as the vibration source, so that the material is thrown up on the screen, while making linear motion forward, and the material enters the inlet of the sifter evenly from the feeder, and produces several specifications of the sieved material and the sieved material through the multi-layer screen, which are discharged from their respective outlets.

What factors can affect the screening effect of a linear vibrating screen

Linear vibrating screen uses vibrating motor excitation as the vibration source, so that the material is thrown up on the screen, while making linear motion forward, and the material enters the inlet of the sifter evenly from the feeder, and produces several specifications of the sieved material and the sieved material through the multi-layer screen, which are discharged from their respective outlets.

So, what factors in the daily work will affect the screening effect of linear vibrating screen? Come to understand it!

One, the nature of the material

1) Loose density of materials

Loose density of the block material is easy to sieve, sieving efficiency is also high; on the contrary, loose density of small materials and powder materials are not easy to sieve, sieving efficiency is also low. The loose density of asphalt mixture is generally 1, 6t/m3 or so.

2 ) material particle composition

In order to improve sieving efficiency, to be sieved in the case of material grade composition, determine the size of the vibrating sieve hole, so that difficult to sieve material (particle size of 0, 7 ~ 1 times the size of the sieve hole material) accounted for the proportion of the material should be sieved small.

3) Relative size of material particle size and sieve hole

The granularity of the mineral material should be strictly controlled within the technical parameters of the equipment, granularity index difference is too large, it will cause a large production cycle, restricting the quality of the product and processing capacity. The probability of material penetration in the sieving process is affected by many factors, among which the self-connected and important factor is the size of the material particle size and the size of the screen hole.

Second, the screen surface structure parameters

1) Length and width of screen surface

Generally speaking, the width of the screen affects the productivity, and the length of the screen affects the screening efficiency. The screen is long, the material stays on the screen for a long time, and there are more chances to penetrate the screen, so the screening efficiency is high. In fact, the width of the screen surface for screening efficiency, the length of the screen surface for screening capacity also has a different degree of influence. The general width to length ratio of 1:2 to 1:3 is appropriate.

2) Sieve hole shape and size

The choice of sieve hole shape mainly depends on the sieve product size and the requirements of the sieve in the lower product use. Round sieve hole compared with other shapes of the sieve hole, the same nominal size, through the circular sieve hole under the coarseness of the screen is smaller.