王月红, 周宁, 张九零,等.不同煤种自燃指标气体优化研究[J].河南理工大学学报（自然科学版）,2020,39(6):10-15.

WANG Y H, ZHOU N, ZHANG J L, et al.Study on gas optimization of spontaneous combustion index for different coal types[J].Journal of Henan Polytechnic University(Natural Science) ,2020,39(6):10-15.

不同煤种自燃指标气体优化研究

王月红, 周宁, 张九零, 朱壮

华北理工大学 矿业工程学院，河北 唐山063009

摘要:为研究不同煤种的自燃指标气体变化规律，提高煤早期自燃预测预报的准确度，采用氧化升温试验系统，运用灰色关联分析方法，重点将5种煤样生成的自燃指标气体与温度的相关性进行分析。结果表明：随着温度升高，多数煤样在氧化升温过程中产生的CO，C₂H₄，C₂H₆气体体积分数呈曲线上升趋势；随着变质程度加深，煤在氧化升温过程中产生的自燃指标气体（CO，C₂H₄）体积分数随之降低，气体出现的温度点也随之升高，C₂H₆的情况则正好相反；变质程度最深的无烟煤最优自燃指标气体为CO，变质程度最浅的褐煤首选自燃指标气体为烷烯比，其余煤样的最优自燃指标气体为C₂H₆。研究结果将对矿井火灾预防起到指导作用。

关键词:变质程度;指标气体;灰色关联;优化分析;煤自燃

doi:10.16186/j.cnki.1673-9787.2020.6.2

基金项目:国家自然科学基金资助项目（51504077）；河北省自然科学基金资助项目（E2016209056 ）

收稿日期:2020/01/09

修回日期:2020/03/20

出版日期:2020/11/15

Study on gas optimization of spontaneous combustion index fordifferent coal types

WANG Yuehong, ZHOU Ning, ZHANG Jiuling, ZHU Zhuang

College of Mining Engineering， North China University of Science and Technology， Tangshan 063009 ， Hebei， China

Abstract:In order to study the variation law of spontaneous combustion index gases of different kinds of coal and to improve accurate prediction of early spontaneous combustion of coal， by using the oxidation heating experimental system and the grey relational analysis method， the correlation between the gas generated from five kinds of coal samples and the temperature was analyzed. The results showed that with the increase of temperature ，the gas concentrations of CO， C₂H₄ and C₂ H₆ produced in the oxidation and heating process of most coal samples showed an upward curve. With the increase of coal metamorphic grade， the concentration of the index gases （ CO， C₂H₄ ） generated in the oxidation and heating process of coal would decrease， and the temperature point of the gas was also extended， while the situation of C₂H₆ was just on the opposite. The optimal index gas of anthracite with the highest metamorphic degree was CO ， the preferred index gas of lignite with the lowest metamorphic degree was alkane ratio， and the optimal index gas of other coal samples was C₂H₆. The research results would play a guiding role in mine fire prevention.

Key words:metamorphic grade;index gase;grey relation;optimized analysis;spontaneous combustion of coal

不同煤种自燃指标气体优化研究_王月红.pdf