安家岭露天煤矿高温明火采空区防灭火及爆破技术研究

发布时间：2018-06-15 22:53

本文选题：露天开采 + 采空区　；参考：《辽宁工程技术大学》2013年硕士论文

【摘要】：小煤矿越界乱采形成了大面积不规则的采空区,部分采空区内存在高温和明火现象,特别是在露天开采境界内存在采空区,给露天矿台阶爆破以及整个矿山的安全生产带来危险。因此,在爆破前必须要对采空区的高温和明火进行降温和灭火处理。目前采空区防灭火技术在国内外都有了几种比较成熟研究成果,其中被广泛认可和采用的有注水灌防灭火技术、惰性气体防灭火技术、阻燃物质堵漏技术、胶体防灭火技术、露天开挖灭火法等技术方案。通过对各种技术灭火、降温原理及其优缺点对比分析,再结合安家岭露天煤矿采空区实际情况,得出适合于安家岭煤矿的高温、明火采空区处理技术方案：即首先用三相泡沫放灭技术对采空区明火进行灭火处理,待明火扑灭后采用注水灌浆技术进行降温处理。经灭火效果观测和孔温监测验证,本矿高温、明火采空区处理取得的效果显著。然后,对经处理后的采空区进行爆破技术研究,并得出采空区爆破技术方案。
[Abstract]:A large area of irregular goaf has been formed by random mining across the boundary in small coal mines, and there is high temperature and open fire in some of the goaf, especially in the boundary of open-pit mining. It brings danger to the bench blasting and the safety production of the whole mine. Therefore, the high temperature and open fire in goaf must be cooled and extinguished before blasting. At present, there have been several mature research achievements in the field of goaf fire prevention and extinguishing technology at home and abroad. Among them, the widely recognized and adopted technologies are water flooding and fire extinguishing technology, inert gas fire prevention and fire extinguishing technology, flame-retardant substance plugging technology, colloidal fire prevention and extinguishing technology. Open-air excavation fire extinguishing method and other technical schemes. Through the comparison and analysis of fire extinguishing, cooling principle, advantages and disadvantages of various technologies, combined with the actual situation of goaf in Anjialing opencast coal mine, the high temperature suitable for Anjialing coal mine is obtained. The technical scheme of treatment of open fire goaf is as follows: firstly, fire extinguishing in goaf is carried out by using three-phase foam extinguishing technology, and cooling treatment is carried out by water injection grouting technology after extinguishing open fire. Through fire extinguishing effect observation and hole temperature monitoring, the effect of high temperature and open fire goaf treatment in this mine is remarkable. Then, the blasting technology of goaf is studied, and the technical scheme of goaf blasting is obtained.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD752

【参考文献】