|本期目录/Table of Contents|

[1]沈云鸽,王德明,朱云飞.不同自燃倾向性煤的指标气体产生规律实验研究[J].中国安全生产科学技术,2018,14(4):69-74.[doi:10.11731/j.issn.1673-193x.2018.04.011]
 SHEN Yunge,WANG Deming,ZHU Yunfei.Experimental study on generation laws of index gases for coal with different spontaneous combustion tendency[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(4):69-74.[doi:10.11731/j.issn.1673-193x.2018.04.011]
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不同自燃倾向性煤的指标气体产生规律实验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年4期
页码:
69-74
栏目:
职业安全卫生管理与技术
出版日期:
2018-04-30

文章信息/Info

Title:
Experimental study on generation laws of index gases for coal with different spontaneous combustion tendency
文章编号:
1673-193X(2018)-04-0069-06
作者:
沈云鸽12王德明12朱云飞12
(1.煤矿瓦斯与火灾防治教育部重点实验室 中国矿业大学,江苏 徐州 221116;2.中国矿业大学 安全工程学院,江苏 徐州 221116)
Author(s):
SHEN Yunge12 WANG Deming12 ZHU Yunfei12
(1.Key Laboratory of Coal Methane and Fire Control of Ministry of Education, China University of Mining and Technology, Xuzhou Jiangsu 221116, China;2.School of Safety Engineering, China University of Mining and Technology, Xuzhou Jiangsu 221116, China)
关键词:
煤自燃自燃倾向性指标气体预测预报
Keywords:
coal spontaneous combustion spontaneous combustion tendency index gas prediction and forecast
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.04.011
文献标志码:
A
摘要:
为研究不同自燃倾向性煤的自燃指标气体变化规律,提高对煤早期自燃预测预报的准确度,采用程序升温实验系统,得到内蒙古褐煤、神东长焰煤、河南气煤及枣庄焦煤4种不同变质程度煤的氧化时间随温度的变化关系,以及指标气体浓度在煤氧化过程中的变化规律。结果表明:自燃倾向性最高的褐煤应以CO和乙烯作为煤自燃早期预报的首选指标气体;易自燃的长焰煤应采用乙烯和烯烷比为主、以CO为辅的煤自燃判定指标;自燃倾向性较低的气煤应以乙烯和烯烷比作为煤自燃预报指标;CO是自燃倾向性最低的焦煤的最佳自燃预报指标气体。
Abstract:
In order to study the variation laws of index gases for the spontaneous combustion of coal with different spontaneous combustion tendency, and improve the accuracy of prediction and forecast on the coal spontaneous combustion in early stage, the variation of oxidation time with temperature for four kinds of coal with different metamorphic degree including the Inner Mongolia lignite, Shendong long flame coal, Henan gas coal and Zaozhuang coking coal were obtained by using the temperature programmed experimental system, as well as the variation laws of concentration of index gases in the process of coal oxidation. The results showed that CO and ethylene should be taken as the preferred index gases in the early forecast of coal spontaneous combustion for lignite with the highest spontaneous combustion tendency. The judgment indexes of coal spontaneous combustion for the long flame coal which is easy to occur spontaneous combustion should take ethylene and the olefin/paraffin ratio as the primary, supplemented by CO. Ethylene and the olefin/paraffin ratio should be taken as the forecast indexes of coal spontaneous combustion for the gas coal with the lower spontaneous combustion tendency. CO was the best forecast index gas of spontaneous combustion for the coking coal with the lowest spontaneous combustion tendency.

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备注/Memo

备注/Memo:
国家重点研发计划项目(2016YFC0801800)
更新日期/Last Update: 2018-05-08