APPLICATION OF AIR-STAGED TECHNOLOGY ONTO COAL-WATER SLURRY FIRED UTILITY BOILER

ZHAO Chenjie1; ZHOU Junhu2; LIU Jianzhong2; ZHOU Zhijun2; HUANG Zhenyu2; CEN Kefa2 1.Pyneo Co Ltd

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APPLICATION OF AIR-STAGED TECHNOLOGY ONTO COAL-WATER SLURRY FIRED UTILITY BOILER

更新时间：2025-09-28

- APPLICATION OF AIR-STAGED TECHNOLOGY ONTO COAL-WATER SLURRY FIRED UTILITY BOILER
- Thermal Power Generation Vol. 40, Issue 11, Pages: 61-64(2011)
- 作者机构：
  
  1. 浙江百能科技有限公司
  2. 浙江大学能源清洁利用国家重点实验室
  3. 浙江百能科技有限公司
  4. 浙江大学能源清洁利用国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227.1
- Published：2011
- 稿件说明：
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ZHAO Chenjie1, ZHOU Junhu2, LIU Jianzhong2, et al. APPLICATION OF AIR-STAGED TECHNOLOGY ONTO COAL-WATER SLURRY FIRED UTILITY BOILER[J]. Thermal power generation, 2011, 40(11): 61-64.
DOI：

ZHAO Chenjie1, ZHOU Junhu2, LIU Jianzhong2, et al. APPLICATION OF AIR-STAGED TECHNOLOGY ONTO COAL-WATER SLURRY FIRED UTILITY BOILER[J]. Thermal power generation, 2011, 40(11): 61-64. DOI：

摘要

对某新建670t/h燃用水煤浆锅炉的空气分级燃烧、水煤浆燃尽率以及锅炉结渣等对NOx排放的影响进行了试验研究。结果表明

采用空气分级燃烧技术后

锅炉在530t/h负荷下运行

通过调整过量空气系数和配风方式

锅炉NOx排放量可降至380mg/m3(标准状态

下同);燃烧过量空气系数控制在1.2左右时

通过配风调整可以同时保证低NOx排放量和燃烧稳定、高效;水煤浆的燃尽率和锅炉结渣现象无明显恶化。

Abstract

The air-staged combustion technology has been adopted in design of a newly constructed 670 t/h coal-water slurry(CWS) fired boiler.In order to understand the influence of said technology upon the air distribution mode

the coefficient of excess air

the mode of putting coal-water slurry guns into operation

the burnout efficiency of CWS

the slagging condition

and the NOx emission

a large amount of tests has been carried out.Results show that the operation of said boiler is under a load of 530 t/h after adopting the air-staged combustion technology

through adjustment of the excess air coefficient and the air distribution mode

the NOx emission reaches 380 mg/m3(standard condition

similarly hereinafter)

the coefficient of excess air has to be controlled at about 1.2

at the same time

the adjustment of air distribution can ensure low NOx emission as well as stable and effective combustion

but without substantial change in burnout and slagging of CWS.

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