Research and application of coal seam spontaneous combustion prevention and control technology in residual coal re-mining face
Yang Yuanwei
Wang Zhenming
Li Jialong
Abstract：In order to further recover coal resources and extend the service life of mine,Yunhe Coal Mine has carried out re-mining and recovery work on the coal resources remain from the original first mining area of the No.3 coal seam.The re-mining area is located within the goaf of No.1301 and No.1302 fully-mechanized mining faces in the original first mining area.The coal seam is a Class Ⅱspontaneous combustion coal seam,and fire prevention and control have become important tasks in this working face.Therefore,this study analyzes the potential risk of spontaneous combustion of coal seams in the secondary mining area,monitors the content and tem-perature change of natural combustion marker gas through the gob bundle and temperature probe,proposes the"three zones"distribu-tion of natural combustion,pressure equalization to reduce the risk of coal spontaneous combustion,network parallel electrical method to monitor the spread of gel,and other fire prevention and extinguishing technologies in the secondary mining face,and carries out engi-neering applications to ensure the safe and smooth recovery of the secondary mining face,and provides reference for the formulation and optimization of mine fire prevention and extinguishing schemes under similar conditions.
Keywords：residual coal reminingprevention of coal spontaneous combustionnetwork parallel electrical methodengineering applications
Publication Date：2025-12-30
Online Publishing Date：2026-01-31(First online date of this platform, not the publication date of the document)
Pages：6( 174-179 )