Vibrating screen can be divided into two types: linear vibrating screen and circular vibrating screen.

Notes in Using of Linear Vibrating Screen

The vibrating screen should be started when there are no materials on the screen and it should never be started with materials on it, and it can only be fed with materials after the screen runs stably. Before stopping it, first stop feeding and stop it after all the materials on the screen are discharged. In the working process, regularly observe the running condition of the screen, if there is abnormal movement or sound, timely stop it for examination, find out the reason and eliminate the malfunction.

The Whole Principle of Vibrating Screen

The performance characteristics of the vibrating screen:
1. The design for the screen part can make rapid screen change and rapid tensioning;
2. high efficiency, low noise;
3. Materials on the screen surface has long stroke, screening accuracy is high, processing capacity is big;
4. When sorting the materials, we need make long-distance transportation of materials;
5. You can change the spacing and angle of the screen surface according to the material size through sieve probability, productivity;
6. You can design different shapes and structures designed according to the production site.

The structural characteristics of the vibrating screen:

Specific structures: linear vibrating screen by screen box, grid, mesh, vibration motor, motor pedestal, damping spring, bracket.
The sieve box: It is made of several sheets of different thickness steel plate welded together, it has a certain strength and stiffness, it is the major component of the screening machine.
Grid:It is made of deformation smaller wood to keep the screen flat tension and reach a normal screening. Larger proportion or production use metal screen frame.
Mesh: Use the composite stainless steel mesh that reaches the state standard . 
The use and maintenance instruction of vibration motor are shown on the manual.
Seat motor sets: standard type (motor is installed under the screen box) sieve machine's motor sets seat is movable, before using, you should connect screws tightly, especially before the new screening machine trial, you must repeatably tighten it the first three days, so as not to loose it and cause accident.
Damping spring: to prevent vibration from transmitting to the ground, at the same time, it can support the full weight of the screen box. Once installed, the spring must be perpendicular to the ground.
Bracket: It is composed of channel supporting the vibrating screen body. The pillars must be perpendicular to the ground, and it should be parallel to each other below the channel of the two pillars.

Vibrating screen is mechanical vibrating equipment driven by electric motors. Circular vibrating screen or round vibrating screen refers to the vibration sieve whose vibrator makes round movement when working.

Circular vibrating screen is new and efficient sieve shaker machine, generally with multiple layers of meshes in order to improve screening efficiency. Round vibrating screen vibrates the body driven by the eccentric shaft. Circular vibrating screen is firm and reliable and durable, and it has features of easy maintenance, low vibration noise, simple and safe operation and so on. Therefore, vibrating screens are widely used in building materials, chemicals, transportation, energy and other industries.

Working Principle

During the operation of sand screening machine, the two motors make synchronous reverse rotation ensure the vibration exciter generate exciting force, forcing the screen body to drive the screen to make vertical movement and make sure the periodic thrown forward in a range of the materials on the screen under the action of vibrating force, thus to complete the screening operation of the materials. The sand screening machine is suitable for sieving sand in the quarry. It also can be used for the products classification of coal, ore dressing, building material, power and chemical industry, etc.