CAJ | 학술논문

千秋煤矿开采容易自燃煤层，矿井冲击地压灾害严重。为降低采动影响，消除冲击地压威胁，21141综放工作面长期低速推进，工作面采空区自然发火危险性加大。为此，提出基于火灾预警、堵漏风、煤体阻化降温、胶体充填、采空区惰化等立体化综合防火技术体系，并进行了成功应用。现场应用效果表明，在低速推进的14个月内，工作面风流中、上隅角及回风流中均未出现CO气体浓度超标现象，该技术能够高效预防低速推进综放工作面煤自燃灾害的发生。
천추매광개채용역자연매층，광정충격지압재해엄중。위강저채동영향，소제충격지압위협，21141종방공작면장기저속추진，공작면채공구자연발화위험성가대。위차，제출기우화재예경、도루풍、매체조화강온、효체충전、채공구타화등입체화종합방화기술체계，병진행료성공응용。현장응용효과표명，재저속추진적14개월내，공작면풍류중、상우각급회풍류중균미출현CO기체농도초표현상，해기술능구고효예방저속추진종방공작면매자연재해적발생。
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. .