采空区自然发火标志性气体在线监测技术应用  

Application of on-line monitoring technology of spontaneous combustion signature gas in goaf

作　　者：叶春辉 李进军 曹楠[3] Ye Chunhui;Li Jinjun;Cao Nan(National Institute of Engineering and Technology for Coal Mining,Huainan 232001,China;Huaizhe Coal PowerCo.,Ltd.,Huainan 232001,China;Xi′an University of Science and Technology,Xi′an 710077,China)

机构地区：[1]煤炭开采国家工程技术研究院,安徽淮南232001 [2]淮浙煤电有限责任公司,安徽淮南232001 [3]西安科技大学,陕西西安710077

出　　处：《能源与环保》2020年第11期11-15,37,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家重大科研仪器研制项目(51427804)。

摘　　要：为解决采空区自然发火预测预报在准确性、及时性方面存在的问题,通过5种氧气浓度(21%、18%、15%、12%、9%)的煤自然发火程序升温实验,确定了自然发火标志性气体,并利用在线监测系统实时监测采空区标志性气体变化情况,实现了煤自燃的自动预警。根据观测结果,还可以自动得出采空区自燃“三带”变化规律,有助于确保煤矿防灭火工作的安全高效实施。In order to solve the problems of accuracy and timeliness in the prediction of spontaneous combustion in goaf,five kinds of oxygen concentration(21%,18%,15%,12%,9%)of coal spontaneous combustion were carried out,the indicator gas of spontaneous combustion was determined,the change of indicator gas in goaf was monitored in real time by online monitoring system,and the automatic early warning of coal spontaneous combustion was realized.According to the observation results,the system can automatically get the"Three Zones"change law of goaf spontaneous combustion,which is helpful to ensure the safe and efficient implementation of coal mine fire prevention and extinguishing work.

关 键 词：标志性气体 程序升温实验 在线监测 自燃“三带” 

分 类 号：TD752.1[矿业工程—矿井通风与安全]