EFFECT OF MINERAL MATTER CA、MG ON COMBUSTION CHARACTERISTICS OF ULTRAFINE PULVERIZED COAL

WEI Li-hong1; LI Run-dong1; JIANG Xiu-min2; LI Yan-ji11.Institute of Clean Energy and Environmental Engineering

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EFFECT OF MINERAL MATTER CA、MG ON COMBUSTION CHARACTERISTICS OF ULTRAFINE PULVERIZED COAL

更新时间：2025-09-28

- EFFECT OF MINERAL MATTER CA、MG ON COMBUSTION CHARACTERISTICS OF ULTRAFINE PULVERIZED COAL
- Thermal Power Generation Vol. 38, Issue 5, Pages: 21-24(2009)
- 作者机构：
  
  1. 沈阳航空工业学院清洁能源与环境工程研究所
  2. 上海交通大学机械与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK16
- Published：2009
- 稿件说明：
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WEI Li-hong1, LI Run-dong1, JIANG Xiu-min2, et al. EFFECT OF MINERAL MATTER CA、MG ON COMBUSTION CHARACTERISTICS OF ULTRAFINE PULVERIZED COAL[J]. Thermal power generation, 2009, 38(5): 21-24.
DOI：

WEI Li-hong1, LI Run-dong1, JIANG Xiu-min2, et al. EFFECT OF MINERAL MATTER CA、MG ON COMBUSTION CHARACTERISTICS OF ULTRAFINE PULVERIZED COAL[J]. Thermal power generation, 2009, 38(5): 21-24. DOI：

摘要

利用热天平研究了Ca、Mg添加量对超细脱灰煤粉(铁法煤)及Mg添加量对铁法原煤燃烧特性的影响。实验结果表明

脱灰处理可明显降低煤的着火温度、提高燃尽率、减小活化能

改善燃烧特性。CaO和MgO添加量较低时

其对脱灰煤样的燃烧特性影响不大;当CaO和MgO添加量达到一定值后

CaO可抑制脱灰煤粉着火;MgO可促进脱灰煤粉和原煤的着火

但抑制固定碳的燃烧;当MgO的添加量增加到0.8%时

原煤的最大失重速率和达到最大失重速率时的温度显著降低

燃尽率仅为原煤的73.33%。

Abstract

Effect of Ca and Mg added amount on ultrafine pulverized coal combustion was studied on a thermo-gravimetric meter.It was found that demineralization obviously reduced ignition temperature

raised burnout rate

decreased activation energy and improved ultrafine pulverized coal combustion characteristics.When the amount of CaO and MgO added was low

it had little effect on the combustion characteristics.When CaO and MgO concentration reached a certain value

CaO had an inhibition effect against the coal ignition

while MgO promoted the ignition of demineralized coal and raw coal

but restrained the combustion of fixed carbon.It was also found that the maximum weight loss rate and the maximum weight loss temperature decreased observably as the content of MgO was increased to 20%.And the burnout rate was only 73.33% of the raw coal.

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