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肥矿集团涿鹿安泰煤业有限责任公司整合的涿鹿县三矿(东沟、胡庄、兴梁),均属易自然发火煤层,煤层发火期3-6个月,由于煤层自然发火期较短,严重制约了矿井下一步在掘进和回采过程中的安全生产。文章论述了易自燃煤层采煤工作面综合防灭火技术,包括预防性灌浆技术、充填复合凝土技术、聚氨酯隔风喷涂技术、化学凝胶防灭火技术,以及防治上、下隅角遗煤自燃的技术。
The No.3 mine (Donggou, Huzhuang, Xingliang) integrated by the No. 8 coal mine of Zhulu Lu Antai Coal Industry Co., Ltd. Is a spontaneous spontaneous coal seam. The coal seam fire period is 3-6 months. Due to the spontaneous combustion period of coal seam Shorter, seriously hampered the next step in the tunneling and mining safety in the production process. This article discusses the comprehensive fire prevention and extinguishing technology for coal mining face in the spontaneous combustion coal seam, including the preventive grouting technology, the composite concrete filling technology, the polyurethane windbreak spraying technology, the chemical gel fire extinguishing technology and the prevention and control of coal spontaneous combustion at the upper and lower corners technology.