Overcoming Static Problems in Your Vibro Sifter Separator

In the process of screening materials with vibro sifter separator, the phenomenon of material unity and blockage occurs. Is the aperture of the screen too small? This is the so-called static electricity, let us discuss this issue together.

Reasons for static electricity in vibro sifter separator:

Some materials themselves contain static electricity. During the screening process, the friction between the materials and the screen will generate static electricity. When static electricity occurs, the materials will be clustered and difficult to pass through the screen. This affects the screening efficiency of the materials and is also harmful to the human body. . So, how do we solve the problem of static electricity when sieving?

How to eliminate the static problems of the vibro sifter separator?

1. Some fine powder materials are easier to generate static electricity, so add antistatic agent to these materials before being screened in the vibro sifter separator to reduce static electricity accumulation, which can effectively prevent materials from gathering together or friction between materials and the screen to generate static electricity, causing blocking Phenomenon.

2. Use the ground wire on the vibro sifter separator to lead the current out to the earth as much as possible, which will reduce the harm of static electricity.

3. The material is subjected to some anti-static measures such as high temperature and drying before screening. For example, air drying is more likely to generate static electricity. If the production workshop does not need to strictly control the humidity level, the user can sprinkle some water on the floor of the production site or put it on Several basins of clean water are used to increase the humidity. Experiments have shown that when the air humidity is lower than 30%, the friction between the material and the screen will generate static electricity. If the humidity is increased to 45%, static electricity will be difficult to generate.

4. Trying a different type of vibro sifter separator, such as centrifugal sifter or ultrasonic vibrating screen

Centrifugal sifter uses a rotating paddle close to the screen to break up static clumps. Then the centrifugal force pushes the individual particles through the sieve holes and then coalesces. The centrifugal sifter is also hindered by the electrostatic charge of the particles, but not to the level of other sieving machines. Mechanical agitation on the surface of the sieve can provide the best results, especially if the product is discharged The pipeline leads to the exhaust port. The air flows through the screen along with the feed, carrying particles.

For some fine materials such as magnetic materials, powders, pigments, starch and other high-precision, high-density, and easily agglomerated new materials, it is recommended that customers choose ultrasonic vibrating screens, which are input to the ultrasonic generator through ultrasonic power to make ultra-fine powder The body receives huge ultrasonic acceleration, thereby suppressing adhesion, friction, clumping and other static electricity troubles, also improving the screening efficiency, and achieving the purpose of cleaning the screen, so that the screening of ultra-fine powder is successfully completed.

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.