束管监测在易燃特厚煤层综放工作面采空区自然发火预警的应用

Application of Bundle Tube Monitoring in Early Warning of Spontaneous Combustion in Goaf of Full-mechanized Working Face in Flammable Extra Thick Coal Seam

通过束管监测,综放工作面采空区自然发火预警指标气体预测预报更具适用性、及时性、可靠性、准确性;对各煤种煤样做大量气体分析试验,以及井下气体数据采集分析情况,来选择适合本矿的指标气体,确定各种临界值及采空区“三带”,提高火灾预警的准确度。

Through bundle tube monitoring,the prediction of natural ignition early warning index gas in goaf of fully mechanized working face is more applicable,timely,reliable and accurate.A large number of gas analysis tests on coal samples of various coal types,as well as underground gas data acquisition and analysis,have selected index gases suitable for the mine,determined various critical values and"three zones"in the goaf area,and improved the accuracy of fire early warning.