Experimental study on ignition temperature of coupling system of low-concentration gas and pulverized coal

LIU Lili; CUI Yong'an; QIAO Xiaolei; XU Liang; FAN Baoguo; JIN Yan

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Experimental study on ignition temperature of coupling system of low-concentration gas and pulverized coal

Thermal Power Generation Issue 9, (2016)

更新时间：2025-09-28

- Experimental study on ignition temperature of coupling system of low-concentration gas and pulverized coal
- 作者机构：
  
  太原理工大学电气与动力工程学院,山西,太原,030024
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD712.7
- Published Online：25 September 2016，
  
  Published：2016
- 稿件说明：
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LIU Lili, CUI Yong'an, QIAO Xiaolei, et al. Experimental study on ignition temperature of coupling system of low-concentration gas and pulverized coal[J]. Thermal Power Generation, 2016, (9).
DOI：

LIU Lili, CUI Yong'an, QIAO Xiaolei, et al. Experimental study on ignition temperature of coupling system of low-concentration gas and pulverized coal[J]. Thermal Power Generation, 2016, (9). DOI：

摘要

为了解低浓度瓦斯与煤粉的耦合特性

自行建立了耦合体系的着火温度实验系统

对低浓度瓦斯与煤粉耦合体系着火温度进行了实验研究。结果表明:耦合体系的着火温度比低浓度瓦斯的着火温度降低了约180 ℃；当甲烷体积分数小于2％时

耦合体系着火温度比煤粉的着火温度低

而当甲烷体积分数高于2％时

耦合体系的着火温度比煤粉的着火温度高

且随着甲烷体积分数的增加

耦合体系的着火温度升高；当煤粉质量浓度增加时

耦合体系着火温度先下降后上升

最佳煤粉质量浓度为700 g/m3；当煤粉粒径从65～70 μm增加到100～105 μm时

着火温度升高了约110 ℃；当煤粉挥发分从8.99％增加到30.99％时

耦合体系的着火温度降低了159 ℃。

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