Study on distribution of"three zones"of spontaneous combustion in No.2102 high water gushing working face of Menkeqing Coal Mine
He Qiaoshun
Dai Jingming
Wang Caimeng
Jiang Gaoqun
Li Ziwei
Luo Zhongzheng
Zhang Tantan
Abstract：The No.2102 working face of Menkeqing Coal Mine has a normal water gushing of 541 m3/h and a maximum water gushing of 855 m3/h,which belongs to the high water gushing working face,and the high water gushing will make the residual coal in the goaf to be soaked by the water to form the submerged coal,and the submerged coal is more prone to spontaneous combustion than the ordinary coal body to cause fire in the goaf.In order to prevent the problem of spontaneous combustion of the residual coal in the goaf,taking the No.2102 working face of Menkeqing Coal Mine as the research object,and mainly taking O2 as the detection index,and through the combination of two methods of on-site real-time monitoring and software simulation,a research on the distribution of the"three zones"of spontaneous combustion was conducted.The bundle pipes in the main transport and return airway of the No.2102 working face were in-stalled to detect the gas composition content in the goaf,and a geometric model of the No.2102 working face and the goaf were estab-lished,the Fluent software was used to simulate the"three zones"of spontaneous combustion in the goaf of the working face,and the re-liability of the simulation model was verified by combining on-site measured data.
Keywords："three zones"of spontaneous combustionfire prevention and suppressionnumerical modelingfield monitoring
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 96-100 )