Vibrating screen is a commonly used screening equipment in mine production. It has the characteristics of small size, light weight, high efficiency and multiple layers. In production, some users will find that their vibrating screens have material deviation, no feeding, no feeding, which greatly affects production. So what causes the material deviation in the vibrating screen, and the material does not flow during work?
Reasons why the vibrating screen does not feed or unload:
There are many reasons why the vibrating screen does not feed the material. For example, the rigidity of the support spring of the screen box is too large, so that the material is subjected to excessive excitation force, resulting in severe vibration. If the support spring is damaged, the material will be unevenly stressed. A flow exception occurs.
1. The screen box of the vibrating screen should be kept at the same horizontal level during installation. If the horizontal level of the screen box is not balanced, the screen surface will deviate to a certain extent, and the material cannot flow in a straight line.
The main part of the sieve plate of the dehydration screen is 5° above the horizontal direction, and the rear part of the sieve plate of the dehydration screen is at an angle of 45° to the main board. Two balanced vibrating motors are installed horizontally, one at the top of the other, and unbalanced gravity is generated when rotating. The rotation effect of the sieve makes the work of the sieve very stable. If there is a problem with the installation angle of the sieve plate, the vibration force will also be affected, which will cause the phenomenon of non-feeding.
2. When the rigidity of the supporting spring of the screen box is too large, it is easy to cause the material to be subjected to excessive excitation force, resulting in severe vibration. If the supporting spring is damaged, the material will be unevenly stressed and flow abnormally.
3. After the screen mesh of the mining vibrating screen is damaged after being used for a long time, the material cannot flow normally on the screen surface.
4. When the vibrating screen is not fed uniformly, the material cannot be subjected to a uniform exciting force, which will also lead to abnormal material flow on the screen surface of the linear vibrating screen.
5. If the stiffness of the supporting spring of the vibrating screen is inconsistent during screening, it will lead to unbalanced support of the screen machine.
Solution:
1. Adjust the horizontal plane of the linear vibrating screen to keep the screen box level;
2. Select a support spring with a certain toughness as the support of the linear vibrating screen to avoid damage to the support spring due to excessive rigidity, adjust the support spring, and replace the damaged spring structure and the damaged screen;
3. Keep the material fed evenly and continuously, and the feeding should not be too much or too little to cause unbalanced load on the screen box.
4. Do a good job in daily maintenance, solve hidden troubles in time, and avoid large losses caused by equipment shutdown.
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