基于实验和现场监测的晋邦德煤业采空区自然发火“三带”划分研究  

Division of“three zones”of spontaneous combustion in goaf of Jin Bangde coal industry based on experiment and field monitoring

作　　者：李界 LI Jie(Shanxi Luliang Lishi Jin Bangde Coal Industry Co.,Ltd.,Luliang 033000,China)

机构地区：[1]山西吕梁离石晋邦德煤业有限公司,山西吕梁033000

出　　处：《陕西煤炭》2025年第3期47-51,共5页Shaanxi Coal

摘　　要：为避免工作面采空区氧化升温而导致的矿井火灾,以晋邦德煤业10406工作面采空区为例,探究了煤层的自然发火规律。基于氧化升温实验确定了煤层自燃预测预报标志性气体,并计算出了最短自然发火期;通过束管监测法测定了采空区的氧气体积分数,并以此为依据划分出了采空区自然发火“三带”范围;最后,根据采空区“三带”的划分结果,对10406工作面的极限推进速度进行了计算。研究发现,在工作面正常回采条件下,采空区遗煤不会出现自燃现象。此次研究对晋邦德煤业矿井火灾的预防有着重要的指导意义。In order to prevent coal mine fire caused by oxidation and heating in goaf of working face,taking the goaf of 10406 working face of Jin Bangde coal industry as an example,the spontaneous ignition law of coal seam is investigated.Based on the oxidation temperature experiment,the characteristic gas of coal seam spontaneous combustion prediction is determined,and the shortest spontaneous ignition period is calculated.The oxygen concentration in goaf is measured by the beam tube monitoring method,and the“three zones”range of spontaneous ignition in goaf is divided.Finally,according to the results of the division of“three zones”in the goaf,the limit advancing velocity of 10406 working face is calculated.It is found that the spontaneous combustion of coal in the goaf will not occur under normal working conditions.The study has important guiding significance for the prevention of mine fire in Jinbangde coal industry.

关 键 词：采空区 自然发火 “三带”划分 遗煤自燃 

分 类 号：TD752.2[矿业工程—矿井通风与安全]