Vibrating screen

Product description

Circular vibrating screen is multi-layer, high-efficiency and new vibrating screen that moves on a circular motion. Circular vibrating screen adopts drum eccentric shaft exciter and eccentric block to adjust the vibration amplitude, so that the screening line is long and the screening specifications are more. Since it has such features as reliable structure, strong exciting force, high screening efficiency, low vibration noise, long service life, convenient repair and safe use, circular vibrating screen is widely used for the product classification in mine, building material, transportation, energy and chemistry. 

Advantages

• 1. The strong vibration of the screen box reduces the phenomenon that the materials block the screen hole, so that the circular vibrating screen has high screening efficiency and production efficiency.

• 2. The circular vibrating screen has simple structure and the dismantling and changing of the screen surface is convenient.

• 3. The electricity consumed to screen every ton of materials is low.

Working principle

The process of dividing the crushed and bulk materials with different particle sizes through a single-layer or multi-layer screen surface with uniform holes for many times and dividing them into several different levels is called screening. The particles larger than the sieve hole remain on the sieve surface, which is called the oversize of the sieve surface, and the particles smaller than the sieve hole pass through the sieve hole, which is called the undersize of the sieve surface. The actual screening process is: after a large number of broken materials with different particle sizes and mixed thicknesses enter the screen surface, only a part of the particles are in contact with the screen surface. Due to the vibration of the screen box, the material layer on the screen is loosened, so that large particles originally exist. The gap is further expanded, and the small particles take the opportunity to pass through the gap and transfer to the lower layer or the conveyor. Due to the small gap between small particles, large particles cannot pass through, so the original disordered particle group is separated, that is, it is layered according to particle size, forming a regular arrangement of small particles at the bottom and coarse particles at the top. The fine particles that reach the sieve surface, those smaller than the sieve holes pass through the sieve, and finally realize the separation of coarse and fine particles, and complete the sieving process. However, there is no sufficient separation, and generally a part of the undersize remains in the oversize during sieving. When fine particles pass through the sieve, although the particles are smaller than the sieve holes, they have different degrees of difficulty in passing through the sieve. It is more difficult for particles with similar sizes of materials and sieve holes to pass through the sieve, and it is even more difficult to pass through the gap between the particles in the lower layer of the sieve surface.

Technical specifications