STUDY ON THE INFLUENCE OF PULVERIZED COAL’S PARTICLE SIZE UPON THE COMBUSTION PROPERTIES

ZHOU Zhen; LIU Liang; WANG Yan-lin; LIU Hui (Changsha University of Science and Technology

doi:10.19666/j.rlfd.2007.03.010

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STUDY ON THE INFLUENCE OF PULVERIZED COAL’S PARTICLE SIZE UPON THE COMBUSTION PROPERTIES

Thermal Power Generation Issue 3, Pages: 35-38(2007)

更新时间：2025-09-28

- STUDY ON THE INFLUENCE OF PULVERIZED COAL’S PARTICLE SIZE UPON THE COMBUSTION PROPERTIES
- 作者机构：
  
  长沙理工大学
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.03.010
  CLC： TK227.1
- Published：2007
- 稿件说明：
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ZHOU Zhen, LIU Liang, WANG Yan-lin, et al. STUDY ON THE INFLUENCE OF PULVERIZED COAL’S PARTICLE SIZE UPON THE COMBUSTION PROPERTIES[J]. Thermal Power Generation, 2007, (3): 35-38.
DOI：

ZHOU Zhen, LIU Liang, WANG Yan-lin, et al. STUDY ON THE INFLUENCE OF PULVERIZED COAL’S PARTICLE SIZE UPON THE COMBUSTION PROPERTIES[J]. Thermal Power Generation, 2007, (3): 35-38. DOI： 10.19666/j.rlfd.2007.03.010.

摘要

对4种不同粒径的冷水江煤和郑州矿物局贫瘦煤在升温速率均为20℃/min、气体流量为65mL/min的试验条件下进行了热重试验。结果表明:随着煤粉粒径的减小

最大燃烧速率出现得更早

着火提前;着火温度降低

燃尽温度也随之降低;煤粉活化能减小

煤粉的综合燃烧特性指数有较大提高

燃烧特性得到改善。

Abstract

The proximate analysis has been carried out for Lengshuijiang coal and lean coal from Zheng-zhou Minerial Agency with four different particle sizes. Then

the samples are used for thermogravimetric test under condition of temperature rise rate to be 20℃/min

and the gas flow rate to be 65 mL/min. The results show that: the maximum combustion rate and ignition of the pulverized coal occurred more early along with the particle size of coal being decreased; the ignition temperature and burnout temperature all have decreased; the activation energy of pulverized coal has reduced

the complex characteristic index of combustion has been enhanced

the combustion property being perfected.

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