义煤矿区极易自燃厚煤层快速治理技术

The Rapid Disposal Technology of Yi spontaneous seam coal mine

义煤集团公司下辖的五个矿所采煤层为容易自然发火煤层,自然发火期一个月,最短7天,煤炭自燃问题严重困扰着集团公司的安全生产。本文研究了高效复合泡沫灭火抑爆新技术,既能充分利用目前有效的常规防灭火技术与手段,又能克服目前注浆、惰气、惰气泡沫、阻化剂等灭火或抑爆技术的不足,并研制了产生高效复合泡沫的新装备,提出了灭火钻孔快速施工技术和高效复合泡沫灌注技术,构建了满足不同灭火需要的多功能一体化防灭火系统。以千秋矿为例,21201工作面采空区与高冒复合火区的快速治理,整个灭火过程仅用了7天时间,为防止灾害影响范围扩大化、尽快恢复生产奠定了基础。

The five Coal mining companies under the jurisdiction of the spontaneous combustion in coal seam coal seam for easy, the spontaneous combustion is a month, the shortest is 7 days, the spontaneous combustion of coal issues have Seriously troubled company＇s safety. This paper studies a foam fire suppression efficient compound blasting new technology that can make full use of current effective conventional fire - fighting technology and method, and can overcome the present grouting, an inert gas, an inert gas bubbles, resistance change agent fire - extinguishing or suppression of blasting technology for insufficient. At the same time, the paper developed an efficient compound foam generated new equipment, put forward the construction technology and rapid fire drill efficient compound foam perfusion technique, constructed different needs of extinguishing fire prevention system integration of multifnnetional. Finally, we can realize the mined - out area of the coal mine with 21201 thousand high risk of compound the equal, the whole process of rapid governance fire just in seven days, which laid a foundation to prevent disaster affected area enlargement and resume production as soon as possible.