The long-term vibration of ZGM133G-I type medium speed coal pulverizers in a power plant causes weld fatigue fracture of the powder delivery pipeline

which results in coal powder leakage

polluting the environment and seriously affecting the operation of the unit. Based on the mechanical vibration analysis and field test of medium-speed coal pulverizers

this paper studies the influence of operating parameters such as loading force

speed of separator and output of coal pulverizers on the vibration of coal pulverizers. The results show that

the vibration of medium-speed coal pulverizers is mainly caused by the mechanical equipment itself and the setting of operating parameters. The size and separator type of coal pulverizers are not the inevitable factors that cause the vibration of coal pulverizers

but the wear and damage of mechanical structure will cause the vibration of coal pulverizers. In order to reduce the vibration of medium-speed coal pulverizers

it is necessary to comprehensively consider the output of coal pulverizers and the fineness of coal powder according to the test results

and reasonably control the loading force

separator speed and output.