Research on Ash Removal for the Water Wall of Coal Gasifier under Impact Loadings

Vibration responses of the water wall of coal gasifier under impact loads were investigated. The influences of different diameters of water walls and impact loads on the effectiveness of ash removal were further considered. The results showed that the peak acceleration along the axial direction of t...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 226-228; pp. 227 - 231
Main Authors Zheng, Xiao Tao, Xu, Jian Min, Yu, Jiu Yang, Wang, Cheng Gang, Jing, Jing
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.11.2012
Subjects
Impact
Fatigue Strength
Gasifier
Ash Removal
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Summary:Vibration responses of the water wall of coal gasifier under impact loads were investigated. The influences of different diameters of water walls and impact loads on the effectiveness of ash removal were further considered. The results showed that the peak acceleration along the axial direction of the water wall is greater than 80% of the peak acceleration at the impact point when rapping devices are installed at the 1/4, 1/2 and 3/4 heights. Moreover, rapping devices should be staggered 30 degree in the hoop direction at different heights to avoid the dead zone of ash removal. Furthermore, vibration accelerations increase with increasing the diameter of water wall, while the impact time should be as short as possible for higher efficiency of ash removal.
Bibliography:Selected, peer reviewed papers from the 2012 International Conference on Vibration, Structural Engineering and Measurement (ICVSEM 2012), October 19-21 2012, Shanghai, China
ISBN:9783037855072
303785507X
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.226-228.227