How to Deal with the Vibration of Rotary Kiln Fan?

时间:2021-11-15 作者 :超级管理员

The fan is an important auxiliary machine of the rotary kiln. When the fan fails or accidents, it will cause the equipment to reduce the output or stop operation, causing losses. Vibration is the most influential thing in equipment operation. So, what is the reason for the vibration? How to solve it?

      1. For some slight vibration that will not damage the equipment or reduce the performance of the equipment itself, the vibration problem of the fan can be solved by adjusting the tightness of the anti-vibration glue under the base of the kiln fan. This piece of glue uses bolts to connect the air seat to the fan platform. If the bolts are too loose, the fan will squeeze the anti-vibration glue by vibration, and the anti-vibration glue will have a recoil on it. This inherently has a resonance frequency problem, which is easy to produce and resonate. , So as to increase the vibration of the fan itself, if the anti-vibration glue screw is tightened too tightly, it will not have the effect of damping, but will transmit the vibration to the fan platform to cause the platform to vibrate. Therefore, the anti-vibration glue fixing bolts must be tightened appropriately.

  2. The large gap between the inner and outer rings and the balls or rollers caused by the wear of the bearing caused the spindle to vibrate and generate vibration. Skilled employees can get timely judgment from the beating of the main shaft or the abnormal noise of the fan. Vibration may also occur due to damage to the bearing wreath or balls and rollers. At this time, the "crack" and "crack" noises of the rotary kiln fan are particularly obvious. At this time, only the bearing should be replaced.

  3. The plum blossom rubber pad is damaged, and the coupling iron hits the iron, resulting in abnormal noise and vibration. At this time, stop the machine and replace the plum blossom rubber pad.

  4. The fan blades of the rotary kiln have uneven distribution of smoke and dust, resulting in deviations in the quality of the fan blades, resulting in vibration. The solution is to clean up the smoke and dust everywhere in the fan blades in time.

Rotary kiln    5. The main shaft or blades of the fan are deformed to produce vibration. This vibration has the nature of a vicious cycle and should be dealt with in time. The deformation of the main shaft must be replaced. If the blade is deformed or has poor mass distribution, it can be detected and corrected by the static balance test. The solution is to loosen the motor, separate the motor from the fan bearing seat from the coupling, and then rotate the fan blade to stop it automatically. Make a note of its low position when it is still, and re-rotate the blades. If the position of the low point is always the same every time the fan stops, it means that the mass in this direction is greater. You can add a piece of yellow mud to the opposite (side) to try again. Follow this method until the low position of the fan is every time the fan stops. Random, not fixed. At this time, the yellow mud was shoveled off, weighed, and then at the same position, an iron block of the same weight was repaired, and the debugging was successful.

This is all about the causes and treatment of the vibration of the fan of the rotary kiln. The problem of the vibration of the fan is very complicated. However, as long as you master the causes and basic characteristics of various vibrations, and accumulate more experience in peacetime, you can quickly resolve the problem. Accurately determine the root cause of the fan vibration failure, and then take measures to improve the reliability of the rotary kiln.