Screening equipment is an important auxiliary equipment in mining, building materials, chemical industries and other industries. Its performance directly affects production capacity and technical and economic indicators. Therefore, it is very necessary to understand some common fault diagnosis and solutions of vibrating screens in production practice. This article shares the common problems of vibrating screen exciters, the main reasons and solutions for the cracking and deformation of the screen frame and side plates.
The exciter is the vibration source of the screen body. The amplitude can be adjusted by the counterweight. When the exciter is working, the centrifugal force generated by the eccentric mass is selected as the exciting force. When the biaxial exciter rotates synchronously, The screen box performs reciprocating linear vibration, and the materials are screened through the gap of the drying surface, and then the screening work of the product mine is completed.
The failure of vibrating screen exciter generally has the following situations:
1. Start under heavy load
Sudden shutdown due to production or other equipment failures makes the screen box full of minerals. If the exciter starts again under heavy load, it is very easy to cause damage to the universal coupling and other parts of the exciter.
Solution: Avoid restarting the vibrating screen under heavy load.
2. Damage to the damping system
If the damping spring fails or too much material under the screen, etc., the damping system will be uncoordinated and cause damage to the vibration exciter.
Solution: Check the damping spring regularly, and replace the springs that fail and deform in time. When replacing, replace all the damping springs at the same time as much as possible, and ensure that the stiffness of each group of springs before and after replacement is consistent.
In summary, there are two common problems with vibrating screen exciters and corresponding solutions. The vibrating screen exciter must strictly follow the corresponding operating instructions during the installation and use process to ensure the safe operation of the equipment.