Effect of surrounding air on slagging characteristics of a 600MW pulverized coal-fired boiler:numerical simulation

FAN Baoguo; KOU Bingnyu; WANG Yifeng; LIN Shubiao; CAI Xinchun; JIN Yan

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Effect of surrounding air on slagging characteristics of a 600MW pulverized coal-fired boiler:numerical simulation

更新时间：2025-09-28

- Effect of surrounding air on slagging characteristics of a 600MW pulverized coal-fired boiler:numerical simulation
- Thermal Power Generation Vol. 43, Issue 10, Pages: 40-45(2014)
- 作者机构：
  
  1. 太原理工大学电气与动力工程学院
  2. 西安交通大学能源与动力工程学院
  3. 山西格盟国际能源有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.63
- Published：2014
- 稿件说明：
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FAN Baoguo, KOU Bingnyu, WANG Yifeng, et al. Effect of surrounding air on slagging characteristics of a 600MW pulverized coal-fired boiler:numerical simulation[J]. Thermal power generation, 2014, 43(10): 40-45.
DOI：

FAN Baoguo, KOU Bingnyu, WANG Yifeng, et al. Effect of surrounding air on slagging characteristics of a 600MW pulverized coal-fired boiler:numerical simulation[J]. Thermal power generation, 2014, 43(10): 40-45. DOI：

摘要

针对某超临界600MW机组四角切圆燃烧锅炉燃烧器区域存在的严重结渣问题

借助Fluent软件对其燃烧过程进行了模拟。结果表明:结渣位于沿射流方向靠近喷口处

结渣的主要原因为该处氧含量低

烟气温度高于入炉煤的灰软化温度(ST);当周界风风速调整至60m/s时

各横截面结渣处温度均低于灰软化温度

可以解决锅炉结渣问题

提高锅炉运行的安全性和经济性。

Abstract

Serious slagging occurred in burner region of a tangentially-fired supercritical 600 MW unit boiler.Numerical simulation was carried out for the combustion process with the Fluent software.The results show that the slagging position is close to the corners of the burner along the stream direction.Low oxygen content and high temperature(higher than the ash softening temperature(ST))are considered as the major reasons for slagging.When the surrounding air is increased to 60m/s

the temperature at the slagging position of the cross section is lower than ST.By this way the slagging problem can be solved and the safety and economy of the boiler operation can be improved.

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