采空区注二氧化碳防治煤炭自燃应用研究  

Application of carbon dioxide injection in goaf to prevent spontaneous combustion of coal

作　　者：牛振磊 程根银[1] 董旗[2] 周逸飞[1] 唐晶晶[1] 

机构地区：[1]华北科技学院安全工程学院,北京东燕郊065201 [2]上海大屯能源股份有限公司姚桥煤矿,江苏徐州221600

出　　处：《华北科技学院学报》2017年第5期12-16,共5页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费资助(3142017039)

摘　　要：为预防姚桥煤矿7271工作面遗煤自燃并为其它工作面防火工作提供参考,通过向采空区压注二氧化碳并利用束管监测系统进行气体浓度监测,得到压注后的采空区二氧化碳分布情况和自燃三带分布情况。整理并分析数据后得出:压注后的二氧化碳从注入口扩散蔓延至回风隅角附近,能有效覆盖采空区;压注后自燃三带中氧化带宽度为23 m。综合分析得出,对7271工作面采空区压注二氧化碳气体可以有效防治遗煤自燃。In order to prevent spontaneous combustion of residual coal in No. 7271 working face of Yaoqiao Coal Mine and to provide reference for fire prevention work of other working face,through injecting carbon dioxide into the goaf and monitoring the gas concentration with the beam tube monitoring system,the distribution of carbon dioxide in the goaf and the distribution of the three zones of spontaneous combustion are obtained after the injection. After finishing and analyzing the data,it is concluded that the pressure injected carbon dioxide spreads from the injection port to the corner of the return air and can effectively cover the mined out area;after the injection,the width of the oxidation zone in the three spontaneous combustion zone is 23 m. Comprehensive analysis shows that injecting carbon dioxide gas into goaf of No. 7271 working face can effectively prevent spontaneous combustion of residual coal.

关 键 词：采空区 二氧化碳 自燃三带 

分 类 号：TD712[矿业工程—矿井通风与安全]