Huadian Technology ›› 2012, Vol. 34 ›› Issue (9): 62-64.

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Application of positive pressure densephase pneumatic ash conveying system in Douhe Power Plant

WANG Jianfeng   

  1. Datang International Douhe Power Plant, Tangshan 063028, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-09-25 Published:2012-09-25

Abstract: Some problems occurred in practical operation of the ash conveying system of boilers No.3 and No.4 in Datang International Douhe Power Plant, which include that the system stability is poor, the system defects occurred frequently, the material level of the electrostatic precipitator is higher, the wear of the system is serious, the allowance of the pressured air is insufficient and others. The problems were analyzed ,and the solving methods were proposed.

Key words: positive pressure dense-phase pneumatic ash conveying, variation of coal quality, reason analysis, equipment reformation, solution