Both crusher production line and sand production line basically use vibrating screen. There are many kinds of vibrating screen, which can be divided into circular vibrating screen and linear vibrating screen according to the movement track of materials. These two types of screening equipment are usually used in daily production. What’s the difference between circular vibrating screen and linear vibrating screen? The following we teach you to distinguish between circular vibrating screen and linear vibrating screen.
There is no essential difference in style and structure between circular and linear vibrating screen. Through the screen surface vibration screening materials, but the different vibration trajectory will directly affect the purpose of screening.
What’s Circular Vibrating Screen?
The motor drives the eccentric block of the vibration exciter to rotate at high speed through the V-belt, which generates a large centrifugal inertia force, thus stimulating the circular motion of the screen box with a certain extent. The material on the screen is transferred through a screen frame on the sloping screen surface. A given pulse produces a continuous throwing motion. When the material meets the surface of the sieve, the particles smaller than the hole of the sieve can pass through the sieve to realize the classification.
What’s Linear Vibrating Screen?
The vibrating motor is used as the vibration source to make the material thrown on the screen and move forward in a straight line at the same time. The material evenly enters into the feed port of the screening machine from the feeder and passes through the multi-layer screening. The upper and lower screen sizes are discharged from their respective outlets.
The Difference Between Circular Vibrating Screen and Linear Vibrating Screen
Generally, the plate used for the production of circular vibrating screen is thicker, while the boxes are made of manganese steel to resist the impact of materials during screening. The materials used for the production of linear vibrating screenare mainly light plate or stainless steel plate.
For circular vibrating screen, because the exciter is arranged above the center of gravity of the screen box, the long ellipse axis at both ends of the screen box is in the shape of lower octagons, while the upper end of the long ellipse is oval. The axis of the feed end is toward the discharging direction, which is conducive to the rapid flow of materials. The upper end of the elliptical long axis is opposite to the discharge direction, which will reduce the moving speed of the material, and it is beneficial to the materials difficult to screen, while the arc screen surface increases the area of the effective screen, thus increasing its effective areaand In addition, for materials that are difficult to screen, the circular vibrating screen can reverse the spindle, make the vibration direction opposite to the moving direction of the material, reduce the moving speed of the material along the screen surface and improve the screening efficiency.
3. Hole Blocked
The material of circular vibrating screen moves in parabola shape on the surface of screen surface, which makes the material as scattered as possible to improve the material’s bounce force, and the material stuck in the sieve hole will also beat to reduce the hole blockage.
4. Screen Angle
According to the particle size of the material, the circular vibrating screen can change the inclination angle of the screen surface, thus changing the velocity of material moving along the screen surface and improving the productivity of the screen machine. Generally speaking, linear vibrating screen has a small screen angle in the production process.
Because the inclination of screen surface is small, the linear vibrating screen reduces the height of the screen and is conducive to the process layout.
6. Track of Motion
The material on the circular vibrating screen moves in a circle, while the material on the linear screen moves forward linearly.
Circular vibrating screenis also called single axis vibrating screen, because the exciter is an axis working with the inertia motor. Linear vibrating screen consists of two shafts and works according to the excitation principle of vibration motor, so it is also called double shaft vibrator.
Circular vibrating screen is mainly used to screen materials with large ratio, large particles and high hardness.It is widely used in mining industries, such as mines, coal and quarries. Linear vibrating screen mainly selects fine particles, light weight and low hardness materials. It is mainly used in dry powder, fine particle or micro powder material. It is commonly used in the food, chemical, construction materials and pharmaceutical industries.
9. Environmental Protection
The linear vibrating screen can be fully enclosed structure, without dust spillage, which is more favorable for environmental protection.
The most widely used in the field of mine crushing is circular vibrating screen. In practice, the selection of circular or Linear vibrating screen depends on the type of material and application field that the user processes.