STUDY ON COMBUSTION CHARACTERS OF BLENDED COAL IN COAL-BLENDING SYSTEM OF POWER INDUSTRY

CHEN Xiu-juan1; YU Li-jian2; ZHANG Guang-bin1; XIAO Li-chuan11.Department of Mechanical and Energy Engineering

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STUDY ON COMBUSTION CHARACTERS OF BLENDED COAL IN COAL-BLENDING SYSTEM OF POWER INDUSTRY

更新时间：2025-09-28

- STUDY ON COMBUSTION CHARACTERS OF BLENDED COAL IN COAL-BLENDING SYSTEM OF POWER INDUSTRY
- Thermal Power Generation Vol. 38, Issue 10, Pages: 11-14(2009)
- 作者机构：
  
  1. 江苏工业学院机械与能源工程学院
  2. 山东电力设计院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227.1
- Published：2009
- 稿件说明：
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CHEN Xiu-juan1, YU Li-jian2, ZHANG Guang-bin1, et al. STUDY ON COMBUSTION CHARACTERS OF BLENDED COAL IN COAL-BLENDING SYSTEM OF POWER INDUSTRY[J]. Thermal power generation, 2009, 38(10): 11-14.
DOI：

CHEN Xiu-juan1, YU Li-jian2, ZHANG Guang-bin1, et al. STUDY ON COMBUSTION CHARACTERS OF BLENDED COAL IN COAL-BLENDING SYSTEM OF POWER INDUSTRY[J]. Thermal power generation, 2009, 38(10): 11-14. DOI：

摘要

在不同过量空气系数、炉膛温度和煤粉细度条件下

通过沉降炉燃烧特性试验

研究了不同煤种以不同比例混合配煤的着火、燃烧、结渣等燃烧特性变化规律及其影响因素。研究表明:(1)配煤中挥发分减少

着火温度逐渐升高

煤粉着火推迟

使得燃尽性变差;(2)配煤的发热量降低

导致着火温度逐渐升高及飞灰含碳量升高;(3)煤粉浓度一定时

煤粉越细越利于着火。

Abstract

Under condition of different coefficient of excess air

temperature in furnace

and fineness of pulverized coal

etc.

through test of combustion chavacters in fallout furnace

the variating regularity of combustion characters

such as ignition

combustion

and slagging etc.

of blended coal obtained from blending different coal sort with different proportioning ratio

as well as their affecting factors have been studied.Study shows that:(1)the volatile matter content in the blended coal has decreased

the ignition temperature being gradually enhanced

the delayed ignition of pulverized coal making the burn-up behavior to be worsened;(2)the calorific value of blended coal has lowered

leading to ignition temperature to be gradually enhanced

and the unburned combustibles in fly ash to be heightened;(3)the better fineness of pulverized coal is more helpful to ignition under certain concentration of the pulverized coal.

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