Study and Application of Fire Control Technology for Inflammable Fully Mechanized Top-caving Face at Low Advance Speed
ZHANG Qingxuan
BIE Xiaofei
QI Xuyao
XIE Fengcheng
DONG Yongli
Abstract：Inflammable coal seams are mined in Qianqiu Coal Mine and serious rock bursts often occur. In order to reduce the mining influence and eliminate the threat of rock burst,21141 fully mechanized toP-caving face was extracted at a low advance sPeed in a long Period of time,the result was that the risk of coal sPontaneous combustion in the gob of the face increased. For this reason,a three-dimensional comPrehensive fire Prevention and control technology was Put forward,which was based on fire Pre-warning,blocking against air leakage,cooling coal body with retarder,gel fill,filling inert gas into the gob and so on,and this technology has been successfully aPPlied. The site aPPlication effect showed that disallowed CO concentration did not aPPear in the air current of the face,at the uPPer corner angle and in the return-air current while the working face was advanced at a low advance sPeed for 14 months,this technology can effectively Prevent from coal sPontaneous combustion in the fully mechanized toP-caving face at a low advance sPeed. .
Keywords：fully mechanized toP-caving faceinflammable coal seamslow advancefire Prevention
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 73-76 )