Reasons and Prevention of Coking and Outfire in Boiler

闫连祥; 李俊忠

doi:10.16056/j.1005-7676.2015.04.019

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Reasons and Prevention of Coking and Outfire in Boiler

更新时间：2026-01-19

- Reasons and Prevention of Coking and Outfire in Boiler
- Issue 4, Pages: 70-73(2015)
- 作者机构：
  
  北方联合电力公司和林电厂
- 作者简介：
- 基金信息：
- DOI：10.16056/j.1005-7676.2015.04.019
  CLC： TK228
- Published：2015
- 稿件说明：
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[1]闫连祥,李俊忠.锅炉掉焦灭火原因分析及对策[J].能源研究与管理,2015(04):70-73.

闫连祥, 李俊忠. Reasons and Prevention of Coking and Outfire in Boiler[J]. 2015, (4): 70-73.
[1]闫连祥,李俊忠.锅炉掉焦灭火原因分析及对策[J].能源研究与管理,2015(04):70-73. DOI： 10.16056/j.1005-7676.2015.04.019.

闫连祥, 李俊忠. Reasons and Prevention of Coking and Outfire in Boiler[J]. 2015, (4): 70-73. DOI： 10.16056/j.1005-7676.2015.04.019.

摘要

针对某锅炉存在的灭火现象

提出造成该现象的主要原因是锅炉结焦严重和火检安装位置不佳等。经分析

认为煤质变差、一次风速偏高、煤粉细度偏粗、配粉均匀性差、卫燃带敷设过多、燃烧器切圆直径偏大、吹灰器布置不合理等是造成锅炉结焦严重的主要原因。通过改善煤质、在磨煤机出口安装煤粉分配器、调小燃烧器切圆、调整火检位置、对卫燃带进行小块分割、优化锅炉运行方式等措施

消除了锅炉掉焦灭火现象

可以作为解决同类锅炉结焦问题的参考。

Abstract

For the fire-missing phenomenon which often appeared in certain boiler

the main reasons such as the serious slagging in boiler and the poor flame detection installation have been proposed. The further analysis shows that the change of coal quality

a high primary wind speed

the big fineness of pulverized coal

the poor pulverized coal uniformity in furnace four-corner

too much refractory belt area

large tangential burner diameter

unreasonable soot blowers’ location are the major causes of serious slagging in boiler. By improving the quality of coal

installing pulverized coal distributors at the exit of coal mills

reducing the tangential burner diameter

adjusting the flame detection installation

lowering the refractory belt area and making it segmented smaller

optimizing boiler operation mode

the fire-missing phenomenon of the boiler has been eliminated. The results can be served as reference to the same kind of problems.

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