SLAGGING ON 300 MW UNIT BOILERS:REASON ANALYSIS AND COUNTERMEASURES

ZOU Xianhong1; LUO Qing1; CHEN Guangyuan2; LU Chunyi3; CUI Yan4 1.Wuhan Boiler Co.Ltd.

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SLAGGING ON 300 MW UNIT BOILERS:REASON ANALYSIS AND COUNTERMEASURES

更新时间：2025-09-28

- SLAGGING ON 300 MW UNIT BOILERS:REASON ANALYSIS AND COUNTERMEASURES
- Thermal Power Generation Vol. 41, Issue 9, Pages: 120-121(2012)
- 作者机构：
  
  1. 武汉锅炉股份有限公司
  2. 大唐兰州西固热电有限责任公司
  3. 大唐辽源发电厂
  4. 甘肃电投金昌发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227
- Published：2012
- 稿件说明：
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ZOU Xianhong1, LUO Qing1, CHEN Guangyuan2, et al. SLAGGING ON 300 MW UNIT BOILERS:REASON ANALYSIS AND COUNTERMEASURES[J]. Thermal power generation, 2012, 41(9): 120-121.
DOI：

ZOU Xianhong1, LUO Qing1, CHEN Guangyuan2, et al. SLAGGING ON 300 MW UNIT BOILERS:REASON ANALYSIS AND COUNTERMEASURES[J]. Thermal power generation, 2012, 41(9): 120-121. DOI：

摘要

分析了3台300MW机组锅炉燃用低灰熔点烟煤、褐煤后结渣严重的原因

锅炉燃烧器安装误差、炉膛漏风、热态下的一次风速不平衡、燃烧配风不合理、燃煤品质差是导致锅炉严重结渣的主要因素。对此

提出了提高锅炉燃烧设备安装质量

定期进行一次风的热态调平试验

及时清理炉膛及燃烧器喷口处挂焦

燃用灰熔点DT1 100℃的煤种时要考虑掺配高灰熔点且特性接近的煤种等措施。

Abstract

Serious slagging occurred on three 300 MW unit boilers with low ash fusion point bituminous and lignite as the fuel.Six factors such as installation error of the burner

air leakage of the furnace

primary air speed imbalance under thermal state

unreasonable combustion air distribution and the bad fuel quality were considered as the main reason.Thus

several measures were proposed as following:improving the installation quality of boiler combustion equipment;carrying out the thermal state leveling test of primary air regularly;clearing the hanging slagging in furnace and the burner nozzle timely;considering blending coals with high ash melting point and similar quality when burning the coals with ash melting point that below 1 100 ℃;controlling the oxygen concentration at the outlet of furnace or economizer by adjusting the supply air volume.

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Related Author

LI xian-zhong1

Wang Guo-kun2

XUE Zhao-wei21.Department of Power Engineering

LIU Gui-feng

SUN Jian-bo

AN Xue-zhong

XIE Wen-jun

YIE Feng

Related Institution

Zhengzhou Electric Power College Power Engineering Department

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