论文部分内容阅读
长春羊草煤业股份有限公司一矿1023综放面通过采取综合性防灭火措施,使工作面安全顺利回撤,杜绝了自然发火事故,取得了良好的技术、经济和安全效益。该公司一矿为瓦斯矿井,煤质为长焰煤,煤层自然发火期22天,最短17天,由于自然发火期短,导致自然发火现象严重,所以在综采放顶煤工作面撤架期间采取了打钻注水、注氮、灌浆、注防灭火泡沫及防灭火剂等综合性的防火措施,确保了工作面回撤期间的正常施工。
1023 fully mechanized top coal caving mining site of No.103 Mine in Changchun Yangcao Coal Mining Co., Ltd. adopted a comprehensive fire prevention and extinguishing measures to ensure safe and safe retraction of the working face, eliminate natural fire accidents and achieved good technical, economic and safety benefits. The company’s first mine is a gas mine, the coal is long flame coal, natural spontaneous combustion period of 22 days, the shortest of 17 days, due to the natural fire period is short, leading to serious spontaneous combustion, so in the period of withdrawal of fully mechanized top coal caving Adopt a comprehensive fire prevention measures such as drilling and injecting water, injecting nitrogen, grouting, preventing and extinguishing foam and preventing fire extinguishing agent to ensure the normal construction during face retraction.