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Analysis of the reason for the small amplitude of the vibrating screen

Time: 2021-06-15 15:53:48 Share To
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 The vibrating screen is an indispensable equipment in the crushed sand production line. It plays a role in screening and grading sand. Users can control the speed of screening by adjusting the amplitude of the vibrating screen. How to adjust? What should I do if the amplitude is small, and what caused it? The main reasons for the small amplitude of the vibrating screen in actual production are as follows:


circular vibrating screen
 
1. Insufficient power supply voltage
    For example, the vibrating screen is designed according to 380V three-phase electricity. If the line is not connected according to the regulations, the voltage is insufficient, which will cause the vibrating screen to have a small amplitude.
 
2. Too few eccentric masses
    By increasing or decreasing the number of eccentric blocks and controlling the amplitude, you can try to increase the number of eccentric blocks to increase the amplitude.
 
3. The included angle of the eccentric block is too small
    If the vibrating screen is equipped with a vibrating motor, the angle between the eccentric blocks at both ends of the motor shaft will also affect the amplitude. The angle becomes smaller, the exciting force becomes larger, and the amplitude becomes larger. Otherwise, the amplitude becomes smaller, so you can change the angle by changing the angle. To adjust the amplitude.
 
4. Large feed volume and large accumulation
    If the stone material conveyed to the screen surface at one time exceeds its bearing range, the remaining material or accumulation in the screen surface and under-screen material hopper will be too much, which will increase the equipment load and affect the amplitude. At this time, it is necessary to s* the machine *, reduce the material on the screen to the normal range, and then start. In addition, the particle size of the material is directly related to the calculation result of the vibrating screen amplitude.
 
5. Unreasonable spring design
    We know that the vibrating screen is mainly composed of vibrators, screen boxes, supporting devices, transmission devices, etc. The spring is an important part of the supporting device, so when designing the spring, the net variable of the spring should be smaller than the height of the device, otherwise, it will The vibrating screen's amplitude is too small; however, if the net variable of the spring is too large, it may cause the body to separate from the spring.

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