Features of circular vibrating screen
Date:2022-05-13 10:21:55
Author:admin
Views:
92
The circular vibrating screen is a kind of screening machine that is used more in coal preparation plants. This sieve is simple in structure and requires less maintenance, and is mostly used for screening coarse-grained materials. The circular vibrating screen is divided into single-axis circular vibrating screen and double-axis circular vibrating screen according to the number of exciters used. The so-called self-centering means that when the screen works, the center line of the drive pulley on the screen box does not change in space, that is, the center line of the pulley on the screen box does not vibrate together with the screen box. According to the different structure of the exciter, this kind of screen can be divided into two types: bearing eccentric type and pulley eccentric type.
Features of circular vibrating screen:
1. Large processing capacity and high screening efficiency.
2. The vibrator is lubricated with bearing thin oil and has an eccentric structure with an external block. It has the characteristics of large exciting force, small bearing load, low temperature and low noise. (Bearing temperature rise is less than 35°).
3. The vibrator can be disassembled and assembled as a whole, which is convenient for maintenance and replacement, which greatly shortens the maintenance cycle. (It only takes 1 to 2 hours to replace the vibrator).
4. The side plate of the screen machine adopts the whole plate cold work, no welding, high strength and long service life. The connection between the beam and the side plate adopts torsional shear high-strength bolt connection, no welding, and the beam is easy to replace.
5. The screen machine adopts rubber spring to reduce vibration, which has the advantages of low noise, long service life, stable cross-vibration area and small dynamic load of each support point of the screen machine compared with metal spring.
6. The connection between the motor and the exciter adopts a flexible coupling, which has the advantages of long service life and small impact on the motor.
Q&A about the circular vibrating screen:
Q1. Why is the circular vibrating screen called circular vibration? The device doesn't appear to be in a circular motion.
A1: The movement of the circular vibrating screen seems to be moving up and down. In fact, its power part is in the form of a circle or an ellipse. Since the upper and lower parts of the equipment are supported by springs, the movement trajectory of the circular vibration of the equipment is buffered and offset, resulting in a screen that looks really irregular.
Q2. In addition to the principle difference, what is the difference between the circular vibrating screen and the linear screen in application?
A2: The circular vibrating screen is mainly used to screen materials with large proportion, large particles and high hardness. It is widely used in mining, coal, quarry and other mining industries. It is an ideal equipment for processing primary and secondary crushed materials. It can also be used For screening finished materials. The linear screen mainly screens medium and fine particles, light specific gravity and low hardness materials. It is usually widely used in the food, chemical, building materials, and pharmaceutical industries. The screen surface is linear reciprocating motion, and the upper material layer moves forward at the same time. It is also subjected to compaction in the process of jumping and falling, so it is especially suitable for dehydration, de-intermediation, de-liquification and dehydration of heavy medium in beneficiation of heavy medium. It is widely used in coal preparation plants.
