CAJ | 학술논문

刘庄矿171101工作面邻近停产线，为防止遗煤自燃，采用动态注氮方式向采空区注氮。为了确定停采后注氮口和灌浆口的合理位置，利用热电偶和束管对采空区内一定范围内气体和温度进行实测，根据温度、CO、CO2分布规律并结合MIN-MAX方法综合划分出采空区“三带”范围。实践证明，以该方法确定的注氮口和灌浆口的位置能够更好地抑制遗煤的自燃，为其他类似停采线附近防灭火提供了参考价值。
류장광171101공작면린근정산선，위방지유매자연，채용동태주담방식향채공구주담。위료학정정채후주담구화관장구적합리위치，이용열전우화속관대채공구내일정범위내기체화온도진행실측，근거온도、CO、CO2분포규률병결합MIN-MAX방법종합화분출채공구“삼대”범위。실천증명，이해방법학정적주담구화관장구적위치능구경호지억제유매적자연，위기타유사정채선부근방멸화제공료삼고개치。
In order to prevent spontaneous combustion of residual coal , the method of dynamic nitrogen injection was applied in goaf of 171101 working face in Liu Zhuang Mine , which was adjacent to stop line .For the purpose of determining the reasonable positions of Nitrogen injection hole and grouting mouth after stopping mining , the gas and temperature within a certain range of goaf were actually measured by using thermocouples and tube .Based on the distribution laws of temperature , CO, CO2 , and combining MIN-MAX method, the range of "three zones"in the goaf was comprehensively divided .The practice showed that the positions of Nitrogen injection hole and grouting mouth determined by this method can better inhibit coal spontaneous combustion , and it provides a reference func-tion for the fire prevention in other similar areas near stop line .