STUDY ON ENHANCING THE INTEGRATED PERFORMANCE OF LARGE-SCALE CFB BOILER BY DISCHARGING THE CIRCULATED ASH

XIAO Ping1; LHai-sheng1; JIANG Jian-zhong1; XU Zheng-quan1; JIANG Min-hua1; WANG Shi-shen2; SUN Gang3(1.Xi'an Thermal Power Research Institute Co Ltd

doi:10.19666/j.rlfd.2007.04.002

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STUDY ON ENHANCING THE INTEGRATED PERFORMANCE OF LARGE-SCALE CFB BOILER BY DISCHARGING THE CIRCULATED ASH

更新时间：2025-09-28

- STUDY ON ENHANCING THE INTEGRATED PERFORMANCE OF LARGE-SCALE CFB BOILER BY DISCHARGING THE CIRCULATED ASH
- Thermal Power Generation Issue 4, Pages: 5-10(2007)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 淮北矿业集团有限责任公司
  3. 四川锅炉厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.04.002
  CLC： TK229.6
- Published：2007
- 稿件说明：
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XIAO Ping1, LHai-sheng1, JIANG Jian-zhong1, et al. STUDY ON ENHANCING THE INTEGRATED PERFORMANCE OF LARGE-SCALE CFB BOILER BY DISCHARGING THE CIRCULATED ASH[J]. Thermal power generation, 2007, (4): 5-10.
DOI：

XIAO Ping1, LHai-sheng1, JIANG Jian-zhong1, et al. STUDY ON ENHANCING THE INTEGRATED PERFORMANCE OF LARGE-SCALE CFB BOILER BY DISCHARGING THE CIRCULATED ASH[J]. Thermal power generation, 2007, (4): 5-10. DOI： 10.19666/j.rlfd.2007.04.002.

摘要

循环流化床(CFB)锅炉燃用高灰分劣质燃料时

高灰分将对炉内灰平衡产生明显影响

并进而影响CFB锅炉的炉内燃烧、传热、磨损以及粉尘污染物的排放等。从CFB锅炉炉内物料平衡出发

提出了可燃质循环倍率概念

并将其用于炉内灰平衡及CFB锅炉燃烧高灰分燃料时排放循环灰的研究。结合某50 MW CFB锅炉的实炉试验

设计了5 MW CFB锅炉的循环灰排放系统。

Abstract

For circulating fluidized bed(CFB) boiler firing low-grade fuel with high ash content

the high ash content can affect the ash balance in furnace

and then affecting combustion

heat transfer

erosion

and dust emission performance etc

of the CFB boiler.Starting from substance balance in the furnace of CFB boiler

a fully new conception of Combustible Circulation Ratio has been put forward

and being used to study the ash balance in furnace and verify the necessity of discharging circulated ash during the CFB boiler firing fuel with high ash content.Comined with field test of a 50 MW CFB boiler firing coal with high ash content

the influence of high ash content and discharge of circulated ash upon boiler operation has been studied.Based on this

a discharging system of circulated ash for a 50 MW boiler has been designed.

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