Overcoming static problems in your Vibratory Screen Separator

During the sieving process, due to the static electricity of the material itself, a sticky net phenomenon occurs, and some powdery materials are present. Due to its fine particle size, static electricity is generated due to friction during the screening process, and the phenomenon of material clumping occurs, which causes the screen of the vibrating screen to become clogged, thereby affecting the screening efficiency and reducing the service life of the screen. So how to solve such problems?

If you suspect that static particles cause screen clogging and prevent your shaker separator from achieving optimum efficiency, there are several strategies to consider. First, you must determine that the electrostatic charge is indeed the cause. First check with the separator manufacturer to determine if your screening material, size or machine and gyrator frequency throughput is reasonable.

If you suspect that static particles cause screen clogging and prevent your shaker separator from achieving optimum efficiency, there are several strategies to consider. First, you must determine that the electrostatic charge is indeed the cause. First check with the separator manufacturer to determine if your screening material, size or machine and gyrator frequency throughput is reasonable.

Once it is determined that static electricity is the cause, the second step is to determine if (a) static electricity causes the material to adhere to the screen. (b) If static electricity causes the material to agglomerate, the individual particles will not break and cannot pass through the mesh. Statically charged particles are typically attracted to the screen media, reducing pore size and limiting screening efficiency and production. Charged particles can also attract each other such that particles that are much larger than a single particle act on the surface of the screen.

First, solve the problem of electrostatic material screening according to the reasons

1.Static electricity

Connect the ground wire on the screen of the screening device to make the current flow, so that the current is exported to the earth as much as possible, thus reducing the harm of static electricity.

2.Material agglomerates

The material is added with antistatic agent before being sieved into the vibrating screen to reduce the accumulation of static electricity, which can effectively prevent the materials from gathering together or the friction between the material and the screen to generate static electricity, which causes the phenomenon of blocking the net.

3.The production environment is too dry

Air drying is more likely to generate static electricity. If the production workshop does not need to strictly control the humidity, the user can sprinkle some water on the ground of the production site or put a few basins of water to increase the humidity. The experiment proves that when the air humidity is lower than 30%, the material and the screen friction Static electricity is generated, and if the humidity is increased to 45%, static electricity is hard to produce.

4. The screen is in contact with the material to generate static electricity

The contact between the material and the screen will generate static electricity due to friction. Therefore, the properties of the material and the screen are particularly important. If the appropriate screen material is selected according to the characteristics of the material, the frictional electrostatic reaction does not occur. Solve the problem of static electricity generated by friction.

Second, use different types of separators for screening

1.Using ultrasonic sifter to solve the problem of electrostatic material screening

The above is the lowest cost solution for electrostatic materials in the screening process. If you still can't meet your requirements, Xinxiang Dahan manufacturers recommend that you use ultrasonic vibrating screen, which is a simple, practical and reliable screening system, which is currently solved. The most effective method for screening electrostatic materials can improve the screening yield while improving the screening yield.

1. Use centrifugal sifter to solve the problem of electrostatic material screening

The centrifugal sifter adopts the principle of air kinetic energy. After mixing the material with the air by the negative pressure airflow, it enters the middle of the sieve wind wheel, and the centrifugal force exerted by the wind turbine blade is sprayed onto the screen barrel through the volute, and then collected through the volute. In combination with the pulse dust collector, the screen is subjected to cyclone scouring, which can clean the net by itself, and can also re-crush the agglomerated material.

The above is an introduction to the solution of electrostatic materials in the screening process. If you have any questions, please feel free to contact us.