基于同位素测钋法的煤矿采空区自燃火源探测技术  

Technology of Detecting Spontaneous Combustion Source in Goaf of Coal Mine by Isotopic Measurement of Polonium

作　　者：周文强 王俊峰[1] 周春山[1] 周斌[1] ZHOU Wenqiang;WANG Junfeng;ZHOU Chunshan;ZHOU Bin(Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学矿业工程学院

出　　处：《煤矿安全》2019年第10期84-87,共4页Safety in Coal Mines

基　　金：山西省优秀人才科技创新资助项目（201705D211004）;山西省高等学校科技创新资助项目（2017140）

摘　　要：针对同位素测氡法大范围探火工程量大、耗费时间长、易受气象因素制约等缺陷,通过研究氡的子体钋的相关特性,提出了探测煤矿采空区自燃火源的同位素测钋法,阐述了测钋法的原理和具体方法。同时,将该方法应用于内蒙古伊泰集团凯达煤矿采空区自燃火源探测实践。结果表明:与同位素测氡法相比,同位素侧钋法具有操作简便,工程量小,较少受气候条件限制的优点。此外,测钋法探测火源位置可靠性更强,准确度更高,能有效减少误报。In view of the defects of the isotope radon measurement method, such as large amount of project, long time consuming and easy to be restricted by meteorological factors, the isotopic polonium method for detecting spontaneous combustion source in goaf of coal mine was proposed by studying the related characteristics of polonium which was the daughter of radon. The principle and concrete method of polonium determination were described. At the same time, the method had been applied to the detection of spontaneous combustion in the goaf of Kaida Coal Mine in Yitai Group, Inner Mongolia. The results showed that the isotope side polonium method has the advantages of simple operation, small engineering quantity and less restriction by climatic conditions compared with the isotope radon method. In addition, the polonium method was more reliable and accurate in detecting the fire source, which could effectively reduce the false alarm.

关 键 词：自燃 测氡法 测钋法 火源探测 防灭火 

分 类 号：TD752.2[矿业工程—矿井通风与安全]