煤矿火区降温措施的分析与实践  

Analysis and Practical of Cooling Measures in Coal Mine Fire Area

作　　者：束学来 郑炳旭[2] 郭子如[1] 李战军[2] 

机构地区：[1]安徽理工大学化学工程学院,淮南232001 [2]广东宏大爆破股份有限公司,广州510623

出　　处：《爆破》2014年第3期154-158,共5页Blasting

摘　　要：针对目前煤矿火区高温爆破降温方式多、效果差、操作难等问题,从理论上对现今常用的火区灭火降温方法进行分类和比较分析,然后优选了火区降温方式,其中提出了液氮降温用量的计算方法,最后对炮孔进行注水降温实践,并初步解决了水源和注水方式等的问题。结果表明:火区灭火目前存在较多难题,多种灭火方法联合使用,灭火效果更好;液氮、液态二氧化碳降温代价高,一般在排险等情况下运用,而注水降温经济有效,可在150℃炮孔温度下广泛使用。Aiming at the problems in high temperature blasting, such as difficult to handle, low efficient and various in many cooling ways. This paper classifies and compares the usual fire extinguishing and cooling ways in theory. It selects the best way and put forward the calculation of liquid nitrogen cooling volume. In the last part of this paper, it practices the cooling water into blast hole. Also it solves the problem of source of water and waterflooding. The resuh shows that ： putting out fire in fire area exists many difficulties. Combination of different ways make the result better. Cost of liquid nitrogen and liquid CO2 is high. Cooling water will be more efficient and economic under usual situation. It can be widely used in 150℃ blast hole.

关 键 词：煤矿火区 高温爆破 火区灭火 火区降温 

分 类 号：TH753[机械工程—仪器科学与技术]