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Research on influence factors of vibration of medium speed coalpulverizers
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Hailong ZHANG1, Wen LI2, Feng ZHANG3, 4, Shihang LU5, Hang LEI5, Zhichao WANG3, 4
Thermal Power Generation | 2023, 52(12) : 190 - 197
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Thermal Power Generation | 2023, 52(12): 190-197
• Power generation technology forum •
Research on influence factors of vibration of medium speed coalpulverizers
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Hailong ZHANG1, Wen LI2, Feng ZHANG3, 4, Shihang LU5, Hang LEI5, Zhichao WANG3, 4
Affiliations
  • 1.Guoneng Ningxia Yuanyang Lake Power Generation Co., Ltd.,Yinchuan 750410, China
  • 2.China Testing & Certification International Group Xi’an Co., Ltd., Xi’an 710054, China
  • 3.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
  • 4.Shaanxi Engineering Research Center of Coal Fired Boiler Environmental Protection, Xi’an 710054, China
  • 5.Xi’an Yitong Thermal Technology Service Co., Ltd., Xi’an 710032, China
Published: 2023-12-25 doi: 10.19666/j.rlfd.202304070
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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.

vibration of coal pulverizers  /  vibration measurement  /  coal pulverizers loading force
Hailong ZHANG, Wen LI, Feng ZHANG, Shihang LU, Hang LEI, Zhichao WANG. Research on influence factors of vibration of medium speed coalpulverizers[J]. Thermal Power Generation, 2023 , 52 (12) : 190 -197 . DOI: 10.19666/j.rlfd.202304070
Funding
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  • Key Research and Development Program of Shaanxi Province(2022GY-156)
Appendix
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Year 2023 volume 52 Issue 12
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Article Info
doi: 10.19666/j.rlfd.202304070
  • Receive Date：2023-04-19
  • Online Date：2026-01-26
  • Published：2023-12-25
Article Data
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History
  • Received：2023-04-19
Funding
Key Research and Development Program of Shaanxi Province(2022GY-156)
Affiliations
    1.Guoneng Ningxia Yuanyang Lake Power Generation Co., Ltd.,Yinchuan 750410, China
    2.China Testing & Certification International Group Xi’an Co., Ltd., Xi’an 710054, China
    3.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
    4.Shaanxi Engineering Research Center of Coal Fired Boiler Environmental Protection, Xi’an 710054, China
    5.Xi’an Yitong Thermal Technology Service Co., Ltd., Xi’an 710032, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202304070
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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