Does the number of layers of vibrating screen affect the screening efficiency?

Recently, some customers are confused about the number of layers of the vibrating screen, whether the number of layers has an impact on the screening efficiency, but in fact, the number of layers has less relationship with the efficiency.

The vibrating screen on the first layer has two discharge ports. Such a vibrating screen is mainly used for impurity removal and filtration, while the vibrating screen on the second layer and above is used for impurity removal and classification of materials. The vibrating screen on the second layer has three discharge ports, which can have five layers and six discharge ports at most.

The screening efficiency is actually related to the size of the vibrating screen and the exciting force of the vibrating motor.

Screening principle of vibrating screen

The materials enter the double-layer vibrating screen from the inlet and move in a circular motion. The materials diffuse from the center to the surrounding. The coarse materials larger than the mesh size are intercepted by the screen and left in the upper layer, and are discharged from the upper discharge port. The fine materials smaller than the mesh size fall to the lower layer and the last layer through the screen, and are discharged from the corresponding discharge port, so as to complete the screening work.

After introducing the working principle of the vibrating screen, here is a practical application case of the double-layer vibrating screen:

The double-layer vibrating screen has two layers of screen and three discharge ports, which can classify a material into three different particle sizes, and the classification accuracy can reach more than 96%.

It is widely used in the screening of dry powder, fine powder and granular materials in food, abrasive raw materials, chemical industry, plastics, medicine, resin powder, ceramic raw materials, metallurgy, building materials, grain, chemical fertilizer and other industries.