CAJ | 학술논문

针对瓦斯与煤自燃灾害并存综放工作面采空区遗煤自燃问题,选取石港煤矿15109综放工作面为研究对象,通过试验测定15＃煤层自燃倾向性属于二类,14＃煤层自燃倾向性属于一类,以CO 浓度的变化趋势判断煤自燃的阶段；分析得到煤层性质、采空区遗煤量、瓦斯抽采漏风等因素共同导致遗煤自燃；提出瑞米材料堵漏、MgCl2阻化防火、注氮惰化处理、MEA高分子阻化等综合阻燃技术.应用结果表明：工作面各测点位置 CO 浓度最高为0.0018％,处于较低水平,无自然发火迹象,防火效果显著.
침대와사여매자연재해병존종방공작면채공구유매자연문제,선취석항매광15109종방공작면위연구대상,통과시험측정15＃매층자연경향성속우이류,14＃매층자연경향성속우일류,이CO 농도적변화추세판단매자연적계단；분석득도매층성질、채공구유매량、와사추채루풍등인소공동도치유매자연；제출서미재료도루、MgCl2조화방화、주담타화처리、MEA고분자조화등종합조연기술.응용결과표명：공작면각측점위치 CO 농도최고위0.0018％,처우교저수평,무자연발화적상,방화효과현저.
Aiming at the matters of coal spontaneous combustion in fully-mechanized caving mining face with gas and fire disaster coexistence ,taking 15109 working face of Shigang Coal Mine as research obj ect,the tendency of No. 1 5 and No. 1 4 coal seam were identified as the sec-ond class and the first class separately by experiments and the stages of coal spontaneous combus-tion were j udged by the carbon monoxide concentration variation trend;the properties of coal seam and the lost coal quantity and air leakage resulting from gas drainage j ointly led to coal spontaneous combustion by the analysis;The comprehensive prevention and treatment technique of coal spontaneous combustion was proposed,which was leaking stoppage with Ruimi material, inhibition for fire prevention with MgCl2 ,nitrogen-inj ection for inert and inhibition with MEA polymer material. The application results show that the carbon monoxide maximum concentra-tion of each measuring point of the face is 0.0018% and is lower level,and three is no sign of coal spontaneous combustion and fire prevention effect is remarkable.