厚煤层131303综放工作面回采期间综合防灭火技术研究

Research on Comprehensive Fire Prevention and Control Technology in the Recovery of Thick Coal Seam 131303 Fully-mechanized Caving Face

矿井火灾防治是新集一矿＂一通三防＂管理的重点和难点,考虑抽采与防火的关系,新集一矿主要开采煤层为13煤、11煤、9煤、8煤、6煤均有自燃倾向性,自然发火等级Ⅱ级,自燃发火期一般为3~6个月。自1993年投产以来共发生自然火灾16次,发生自然火灾的煤层主要为13煤层,8煤层仅在巷道过断层处发生1次。为保证13煤层的安全回采,开展了煤层＂三带＂研究,确定防火措施。本文介绍了131303综放工作面回采期间自燃标志性气体的确定,并对采空区自燃＂三带＂进行测定,并针对性的采取综合防灭火技术的应用情况。

Coal mine fire prevention and control is the emphasis and difficulty in ventilation and safety management of Xinji No.1Mine. Considering the relationship between extraction and fire prevention, the main mining coal seams of Xinji No.1 Mine are Seam 13,Seam 11, Seam 9, Seam 8 and Seam 6, all of which have the spontaneous combustion tendency, and the spontaneous combustion level is Ⅱ.The spontaneous combustion period is commonly 3 ~ 6 months. Since its launch in 1993,a total of 16 times of spontaneous fire have occurred. The main involved coal seam is Seam 13. The Seam 8 only has one time of fire accident at the roadway crossing fault. In order to guarantee the safe mining of Seam 13, the coal seam ＂3 zones＂research is carried out and fire prevention measures are determined. This paper introduces the determination of iconic spontaneous combustion gas and carries on the determination of spontaneous combustion ＂3zones＂ in the goaf, and adopts comprehensive fire prevention and control technology.