Vertical Mill Production Line Vibrating Screen Failure

Introduction: Vertical crushing and grinding machines are popular because of their small footprint. The vibrating screen in the vertical ball mill production line is a common equipment, and the vibration is mainly generated by the exciter. The vertical mill production line exciter uses an eccentric block external monolithic structure, which makes the shaft vertical crushing mill popular because of its small footprint. The vibrating screen in the vertical ball mill production line is a common equipment, and the vibration is mainly generated by the exciter.

The vertical mill production line exciter adopts an eccentric block external structure. This structure will cause the bearing to have frequent failures such as heat generation and burning. The price of the vertical mill is not low, and the failure will definitely affect the production. The following is an analysis of the failure of the vertical mill production line vibrating screen according to the principle of the vertical mill.

The cause of the vibration of the vertical mill production line vibrating screen

One of the main reasons for the failure of the vibrating screen of the vertical mill production line is its use and maintenance. The following analysis of the causes of the failure of the vibrating screen of the vertical mill production line and the corresponding solutions.

1. The vertical mill production line is not properly installed due to the foundation or the spring seat is incorrectly installed, causing the abnormal movement of the screen body, causing the vibrating screen to rotate or twist, causing damage to the vibration of the exciter bearing. The treatment of this problem is: when the vertical mill production line vibrating screen is installed and adjusted, the level is first measured with a level meter. If the foundation is found to be uneven, it can be adjusted by adding the pad on the basis, and the measurement and adjustment are repeated until the basic level.

2. The center of gravity vibration of the vibrating screen of the vertical mill production line is large, causing abnormal movement of the screen body, which causes damage to the vibration of the exciter bearing. The shaker is subjected to an abnormal load, which causes the bearing to heat up. Therefore, the production and installation accuracy of the product is strictly controlled only during the design, manufacture and installation process. In order to ensure that the position of the center of gravity of the excitation force is not offset. At the same time, when using the vibrating screen, it is necessary to achieve uniform feeding.

3. The fixing bolt of the vibrator of the vibrating screen of the vertical mill production line is loose or the anti-loose spring washer is not added, causing the vibration source center to vibrate, causing the vibration of the exciter bearing to be damaged. When the vibration exciter is connected, add the elastic washer. The vibration exciter is used for the first time. After 2h and 50h, re-check the mounting bolt of the tightening exciter and find that the loosening is immediately tightened. The exciter bolt and nut can only be used once. After fastening, it must be replaced.

4. The lubricating oil of the vertical mill production line is improperly selected, and the filling is too much or too little, resulting in damage to the vibration of the exciter bearing. If the grease is filled too much, it will cause heat. Normally, 2/3 of the lubrication chamber should be filled, and the exhaust bolt must be used for exhausting. However, the lack of grease or grease aging, dryness will also cause the bearing to heat. Generally, in the case of no oil leakage, the vibration device is filled with lubricating oil from 0 to 100h, and the filling is not more than 1kg. It is necessary to observe how much oil is added and discharge the waste oil in time so that the bearing can be properly lubricated.

The vibration exciter is the source of vibrating screen power. Proper use and careful maintenance are prerequisites for the good operation of the exciter bearing. This vertical mill production line will work well and bring economic benefits to users.

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