煤矿巷道采空区煤自燃导致的温度变化在线监测研究  

Gob coal mine tunnel temperature changes caused by spontaneous combustion of coal online monitoring

作　　者：李佳奇[1] 倪建明[2] 陈贵[3] 刘文革 田驰 李川[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650500 [2]淮北矿业股份有限公司,安徽淮北235000 [3]淮北矿业股份有限公司朱仙庄煤矿,安徽宿州234111 [4]广东罗尔科技有限公司,广东东莞523120

出　　处：《光学技术》2014年第5期399-401,共3页Optical Technique

基　　金：国家自然科学基金项目(KKGD201203004);云南省应用基础研究计划项目(2013FZ021);安徽淮北煤矿基于光纤光栅技术的煤矿顶板全参数监测系统研究

摘　　要：采空区煤自燃在矿井火灾中约占70%,50%以上国有煤矿矿井存在煤层自燃发火危险,因此对采空区温度进行在线监测十分重要。一种把煤矿巷道温度变化转变成光纤Bragg光栅波长移位的温度传感器被应用于煤矿巷道的温度检测。根据朱仙庄煤矿巷道煤层分布及煤粉扩散的特点,在煤矿巷道顶部沿巷道方向每隔2m进行分布式安装本安型光纤Bragg光栅温度传感器,实现了对采空区温度实时监测。The proportion of gob coal spontaneous is about 70% in mine fire.More than 50% of state-owned coalmine exist the danger of coal fire.So online monitoring of temperature is very important.A temperature sensor is used in the coal mine tunnel.The sensor principle is that temperature change is transited into fiber Bragg grating wavelength shift.According to Zhu Xian coal mine tunnel coal distribution and diffusion characteristics,at the top of coal mine tunnel,every 2mlong,intrinsically safe distributed fiber Bragg grating temperature sensors are installed along the roadway direction.A real-time temperature monitoring of the area is achieved.

关 键 词：光学测量 煤矿巷道 采空区 煤自燃 光纤BRAGG光栅 温度 

分 类 号：TD353.6[矿业工程—矿井建设]