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针对高河能源W1309工作面采空区CO涌出异常,从供氧、蓄热、可燃物等燃烧三要素对事故原因进行了分析。制定了封堵密闭漏风、注液态N_2及液态CO_2的控制事故发展趋势措施,以及同时向异常区域注凝胶的隔绝措施。束管监测数据显示,利用液态N_2及CO_2的吸热、降氧、凝胶的包裹灭火作用成功消除了W1309工作面采空区CO异常。
According to the abnormal emission of CO in the gob of W1309 working face of Gaohe Energy, the causes of the accident were analyzed from the three factors of oxygen supply, heat storage and combustibles combustion. The measures to control the development trend of closed air leakage, liquid N 2 injection and liquid CO 2 injection as well as the isolation of gels to the abnormal areas were formulated. Beam monitoring data show that the use of liquid N 2 and CO 2 endothermic, aerobic, parcel fire extinguishing gel successfully eliminate the W1309 face gob CO anomaly.