Working Principle of Sieving Machine

The sieving machine is a vibrating separator for separating powders, granules and liquid slurries, which can accurately remove excess contaminants. This article will introduce the working principles of several common sieving machines:

Working principle of  vibro sifter

vibro sifter can be used for safe screening to remove foreign matter, separation process of solid in liquid, separation of different particle sizes in the same product, one operation can provide up to 6 grades of classification, using vertical vibration motor as the excitation source, the eccentric hammer at the upper and lower ends of the vibration motor will The rotary motion is transformed into horizontal, vertical and inclined three-dimensional motion, and is transmitted to the screen surface of the vibro sifter. According to different screening requirements, the material passes through 1-5 layers of screens with different mesh numbers. The cleaning device under the screen keeps hitting the screen, so that the material can be sieved smoothly and effectively avoid the problem of material blockage. or filter.

Working principle of ultrasonic sieving machine

Ultrasonic sieving machine uses transducers developed by acoustics, the ultrasonic system applies high frequency vibration to the screen mesh, the frequency of vibration breaks the surface tension, makes the stainless steel mesh effectively frictionless, and prevents oversized and undersized particles from clogging or clogging the mesh screen , Ultrasonic vibration sieving machine has changed the way of screening intractable powder on the screen. It can sieve on finer meshes (down to 20 microns)

Working principle of linear vibrating sieving machine

The working principle of the linear vibrating sieving machine is that the rotating shafts of the two vibrating machines have an inclination angle relative to the screen surface. Under the combined force of the exciting force and the weight of the material, the material is thrown up on the screen surface and jumps forward, moving forward in a straight line. After a large number of crushed materials of different particle sizes and mixed coarse and fine particles enter the screen surface, only a part of the particles In contact with the screen surface, due to the vibration of the screen box, the material layer on the screen is loosened, thereby removing the gaps existing in the large particles and further expanding, and the small particles take the opportunity to pass through the gap and transfer to the lower layer, because the gap between the small particles is very small, Large particles cannot pass through, so the original disordered particles are separated, that is, stratified according to particle size, forming the arrangement rule of small particles on the bottom and coarse particles on the top, so as to achieve the purpose of sieving and classifying materials.

Working principle of  centrifugal sifter

Centrifugal sifter can continuously screen powder materials in the range of 80-530 mesh (it is difficult for ordinary vibrating screen to screen and classify powder materials above 200 mesh). Particles of particle size pass through the sieve holes, and the oversized material spirals through the cylinder and is discharged from the discharge port.

The above are some of our common sieving machines, I hope to be helpful to you.