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针对枣庄市金庄煤矿3105综放工作面的煤层赋存、地质条件以及回采的实际状况,采用预防性注浆、注阻化剂以及注CO2等技术对煤层的自然发火进行了有目的性的预防,并对运用均压防灭火技术进行了探讨。结果显示,开切眼期间,虽然出现自燃征兆,但由于措施合理及时,没有对后续工作产生严重影响;工作面推进期间,由于综合防灭火措施的运用,消除了煤层的自燃隐患,保障了整个工作面回采的正常进行,同时对积累综采放顶煤条件下煤层的自然发火防治经验也有着重要意义。
According to the coal seam occurrence, geological conditions and the actual conditions of the recovery in 3105 fully mechanized coal caving face in Zaozhuang Jinzhuang Coal Mine, the natural fire of the coal seam was made purposeful by preventive grouting, injection inhibitor and CO2 injection technology Prevention, and the use of pressure equalization fire fighting technology were discussed. The results showed that although there was a sign of spontaneous combustion during the opening of the cut eyes, no serious impact on follow-up work was found because the measures were reasonable and timely. During the period of working face advancement, due to the application of comprehensive fire-fighting measures, the spontaneous combustion potential of the coal seam was eliminated, The normal mining face recovery, while the accumulation of fully mechanized top coal caving coal spontaneous combustion prevention and control experience is also of great significance.