The working process of the vibrating screen is the process of sieving and conveying the materials. We hope that the vibrating screen can not only screen more but also clean. That is to say, the processing capacity is large and the screening efficiency is high. This is the problem of vibrating screen screening efficiency, and the so-called screening efficiency refers to the ratio of the actual under-sieve material (material passing through the sieve hole) to the mass of the under-sieve material (theoretical under-sieve material) contained in the feed. Theoretically speaking, all the materials smaller than the mesh in the feed should pass through the sieve, but in fact, due to various reasons, only a part of the fine materials can be discharged through the sieve, while the rest is mixed in the oversieve, so it is said The screening efficiency of the vibrating screen is always less than 1.
In actual work and production, the screening efficiency of the vibrating screen is an important factor to measure the output of the vibrating screen. For the screening efficiency of the vibrating screen, many experts have their own opinions. With the increasingly fierce competition in modern society, effective It is particularly important for vibrating screen manufacturers to reduce costs and improve the screening efficiency of vibrating screens. For this reason, Global Crusher Network here lists several key points to improve the screening efficiency of vibrating screens.

1. How to improve the opening rate of the sieve plate. A high opening rate is beneficial to improve the screening effect. Generally, the high opening rate of the stainless steel welded sieve plate can be paid attention to.

2. To increase the screening rate, the feeding method can be adjusted. If the space position on site is not carefully considered, the feeding is not fed along the full screen width, which will inevitably cause the screen surface to not be fully utilized;

3. To reduce the batter porosity of the sieve, consider choosing a sieve plate with self-cleaning, such as a spring rod sieve surface.

4. If the on-site conditions permit, the inclination angle of the sieve machine can be adjusted. An appropriate inclination angle is beneficial to reduce the material thickness and realize thin material layer screening.

5. If conditions permit, wet screening is the most effective means to improve the screening effect.

6. For the circular vibrating screen, the method of properly adjusting the counterweight can be considered to improve the screening effect;

7. For dry screening, it is necessary to strictly control the moisture content of the incoming material. When the moisture content is high, the screening of ingredients can be considered.

8. If possible, add a fixed screen at the feeding end for coarse screening.

For difficult-to-screen materials and fine materials (or to improve screening efficiency), we can appropriately increase the vibration inclination angle and reduce the downward inclination angle of the screen surface (both methods can slow down the running speed of the material), circular vibrating screen The rotation direction of the vibrator can be adjusted (rotating against the material flow) to prolong the contact time between the material and the screen surface to facilitate the screening, but the processing capacity will be relatively reduced. For large particles and materials that are easy to sieve, the vibration inclination angle can be reduced and the downward inclination angle of the screen surface can be increased to increase the flow speed of the material to increase the output.