大倾角综放工作面光纤测温防治自然发火技术  

The Fiber Temperature Measurement to Prevent Spontaneous Combustion in Large Angle Caving Face

作　　者：杨广文 许汇海 段西凯 姜进军 齐怀远 刘顺达 张典 

机构地区：[1]煤科集团沈阳研究院有限公司,辽宁沈阳110016 [2]鄂尔多斯市昊华精煤有限责任公司,内蒙古鄂尔多斯017200 [3]山东东华能源有限责任公司葛亭煤矿,山东济宁272053

出　　处：《煤矿安全》2014年第4期71-73,77,共4页Safety in Coal Mines

基　　金："十二五"国家科技支撑计划资助项目(2012BAK04B05)

摘　　要：采用的光纤光栅温度传感系统,即把光纤光栅温度传感器埋设在采空区和顺槽,实时监测采空区各测点和主要巷道的温度变化,完成数据的存储、分析与上传,形成集计算机、光纤传感、光纤传输、光电控制等技术于一体的连续监测系统。根据监测结果,对自然发火危险区域采取双路注氮、高位注浆和压注化学膨胀惰泡等措施,防止采空区煤层自然发火,保证矿井的安全生产。By using fiber grating temperature sensing system, the fiber grating temperature sensors were embedded in the goal and cross- heading, real - time monitoring was carried out for the goal measuring points and temperature changes of main roadway, the data stor- age, analysis and upload was completed, and the continuous monitoring system formed which included computers, fiber sensing, opti- cal transmission, optical control technology and so on. According to the monitoring results, the measures of dual nitrogen injection, high pressure injection grouting and chemical expansion inert foam were taken for the danger area of spontaneous combustion, which prevented spontaneous combustion in coal seams of goaf and ensured mine safety production.

关 键 词：自然发火 光纤光栅 光纤测温 无源探测 双路注氮 

分 类 号：TD752.2[矿业工程—矿井通风与安全]