The difference between linear vibrating screen and circular vibrating screen is as follows
The material on the circular vibrating screen moves in a circular motion, and the material on the linear screen moves forward in a straight line.
The circular vibrating screen is also called a single-shaft vibrating screen because the exciter is a shaft and uses an inertial motor to work. The linear vibrating screen is composed of two shafts and works on the principle of vibration motor excitation, so it is also called double Shaft vibrating screen.
The material of the circular vibrating screen moves in a parabolic circular trajectory on the screen surface, so that the material is dispersed as much as possible to improve the bounce force of the material, and the material stuck in the screen hole can also jump out, reducing the hole blocking phenomenon.
Due to the small inclination angle of the screen surface of the linear vibrating screen, the height of the screen is reduced, which is convenient for process layout.
According to the particle size of the material, the circular vibrating screen can change the inclination of the screen surface, thereby changing the moving speed of the material along the screen surface and increasing the processing capacity of the screen machine. Generally speaking, the inclination angle of the screen surface of the linear vibrating screen in production is relatively small.
Under normal circumstances, the circular vibrating screen is made of thicker plates, and the box is made of manganese steel to resist the impact of materials during the screening process. The materials used for the production of linear vibrating screens are mainly light plates or stainless steel plates.
The circular vibrating screen mainly screens materials with high specific gravity, large particles and high hardness. It is widely used in mines, coal, quarries and other mining industries.
Linear screens mainly screen fine particles, light specific gravity, and low-hardness materials, mainly dry powder, fine granular or micro-powder materials, and are generally used in food, chemical, building materials, and pharmaceutical industries.
For the circular vibrating screen, because the exciter is arranged above the center of gravity of the screen box, the elliptical long axis at both ends of the screen box is in a lower eight shape, and the upper end of the elliptical long axis at the feeding end faces the discharge direction, which is conducive to rapid materials Disperse, and the upper end of the elliptical long axis of the discharge end is opposite to the discharge direction, reducing the movement speed of the material, which is conducive to the penetration of difficult-to-screen materials, and the arc-shaped screen surface increases the effective area of the screen, thereby improving its Processing power.
In addition, for difficult-to-screen materials, the circular vibrating screen can turn the main shaft, so that the direction of vibration is opposite to the direction of movement of the material, and the moving speed of the material along the screen surface is reduced (when the inclination angle of the screen surface is the same as the rotation speed of the main shaft) to improve the screening. effectiveness.
The linear vibrating screen can adopt a fully enclosed structure without dust spillage, which is more conducive to environmental protection.
summary：In the field of mining crushing, circular vibrating screens are widely used. In actual production, the choice of circular vibrating screen or linear vibrating screen mainly depends on the type of material handled by the user and the application field. The purpose of screening is different, and the equipment selected is also different.
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