瓦斯异常区煤自燃特性参数实验研究  

Experimental study on characteristic parameters of coal spontaneous combustion in gas anomaly area

作　　者：王伟峰[1] 葛令建[2] 任晓东[2] 冯浩[2] 张志鹏[1] 

机构地区：[1]西安科技大学安全科学与工程学院,陕西西安710054 [2]兖州煤业股份有限公司鲍店煤矿,山东邹城273500

出　　处：《能源与环保》2017年第4期40-43,47,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金(51504186);陕西省科技攻关项目(2016GY-191);省教育厅科研专项(14JK1477)

摘　　要：针对鲍店煤矿瓦斯异常涌出、局部瓦斯聚积、隅角回风巷瓦斯超限的问题,通过程序升温实验,研究了不同瓦斯浓度对煤样自燃特性的影响,分析了5种粒度煤样的耗氧速率在不同温度下的CO、CO2和CH4气体的产生率。实验结果表明:随着风流瓦斯浓度的升高,耗氧速率、CO产生率以及CO2产生率均降低,风流中的瓦斯减缓了煤氧复合反应进程,抑制了煤自燃进程。该研究成果对鲍店煤矿73上09工作面瓦斯与煤自燃的防治提供了理论基础和指导。In view of the problems of gas abnormal emission and local gas accumulation and corner wind lane gas overrun in Baodian Coal Mine, the influence of different gas concentration on coal spontaneous combustion characteristics were studied through the program heating experiment. The oxygen consumption rate of 5 kinds of particle size coal samples and the production rate of CO, CO2 and CH4 at different temperatures were analyzed. The experimental results show that, with the increase of air flow gas concentration, oxygen consumption rate, CO production rate and CO2 production rate are reduced, and the gas in the air decreases the coal oxygen compound reaction process, and inhibited the process of coal spontaneous combustion. The research results provide a theoretical basis and guidance for the prevention and control of gas and coal spontaneous combustion in the 73 upper 09 working face of Baodian Coal Mine.

关 键 词：瓦斯矿井 瓦斯异常区 瓦斯浓度 煤自燃 特性参数 

分 类 号：TD752.2[矿业工程—矿井通风与安全]