近距离煤层采空区均压防灭火技术研究  

Research on pressure equalization fire prevention and extinguishing technology in goaf of close distance coal seam

作　　者：夏鹏飞 Xia Pengfei(Gequan Mine East Well,Jizhong Energy Co.,Ltd.,Xingtai 054000,China)

机构地区：[1]冀中能源股份有限公司葛泉矿东井,河北邢台054000

出　　处：《煤炭与化工》2023年第1期108-111,共4页Coal and Chemical Industry

摘　　要：在多煤层开采的煤矿生产过程中,由于各煤层间通风压力不同,在采空区内的裂隙中形成了漏风通道,造成持续向采空区内供氧情况,为了避免采空区的煤炭自燃,提出了近距离煤层采空区的均压防灭火技术。本文通过在两煤层内使用闭区均压的方式构建均压设施,使两煤层采空区处于相同的通风系统内,从而降低其通风压力,利用压差计及色谱仪对采空区的压差和其他气体等情况进行持续观测及分析,最终两煤层内有毒有害气体无明显变化,采空区压差降低了210 Pa,取得了良好的均压效果。In the process of coal mine production in multi-coal seam mining, due to the different ventilation pressure between coal seams, air leakage channels are formed in the fissures in the goaf, resulting in continuous oxygen supply to the goaf. In order to avoid coal spontaneous combustion in the goaf, the pressure equalization fire prevention and extinguishing technology in the goaf of close distance coal seams is proposed. In this paper, the pressure equalization facilities are constructed by using the closed area pressure equalization method in the 2 nd coal seam, so that the 2 nd coal seam goaf is in the same ventilation system, thereby reducing its ventilation pressure. The differential pressure meter and chromatograph are used to continuously observe and analyze the pressure difference and other gases in the goaf. Finally, there is no significant change in toxic and harmful gases in the 2 nd coal seam, and the pressure difference in the goaf is reduced by 210 Pa, which has achieved good pressure equalization effect.

关 键 词：通风压力 采空区 均压 防灭火技术 

分 类 号：TD712[矿业工程—矿井通风与安全]