采空区火灾智能分析预警系统的设计与应用  

Design and Application of Fire Intelligent Analysis and Early Warning System in Goaf

作　　者：杨书浩 YANG Shuhao(CCTEG Changzhou Research Institute,Changzhou 213015,China;Tiandi(Changzhou)Automation Co.,Ltd.,Changzhou 213015,China)

机构地区：[1]中煤科工常州研究院有限公司,江苏常州213015 [2]天地(常州)自动化股份有限公司,江苏常州213015

出　　处：《煤矿机电》2024年第6期1-6,共6页Colliery Mechanical & Electrical Technology

基　　金：中煤科工集团常州研究院科研项目(2024GY2011)。

摘　　要：采空区火灾特征连续监测分析一直是工作面自然发火防治的重点难点,现有监测方式多以束管、光纤测温单独监测为主,形式单一,缺乏全面有效的监测系统。针对该问题,以光纤测温、束管监测为基础,融合外因火灾、联动控制,形成一套采空区火灾智能分析预警系统。该系统内含温度变化三维展示、爆炸三角形危险判别、爆炸四方图危险趋势分析等多种数据模型,逐一剖析煤层自然氧化升温各个阶段特性,做到每个环节的预警报警有理可依。现场数据显示:某矿区现采工作面采空区温度变化曲线与自燃三带分布高度契合,采空区内最大温度分布于回风侧氧化升温带,最大温度为34.5℃;采空区混合气体成分并未达到爆炸条件,且并无向爆炸危险性发展的趋势。Continuous monitoring and analysis of fire characteristics in goaf has always been a key and difficult point in the prevention and control of spontaneous combustion in working faces.The existing monitoring methods mainly rely on bundle tube and fiber optic temperature measurement for separate monitoring,with a single form and a lack of comprehensive and effective monitoring systems.Based on fiber optic temperature measurement and bundle tube monitoring,a set of intelligent analysis and early warning systems for goaf fires was formed by integrating external fire and linkage control to address this issue.The system includes various data models such as three-dimensional display of temperature changes,hazard discrimination of explosion triangles,and hazard trend analysis of explosion quadrilaterals.The characteristics of natural oxidation and heating stages of coal seams were analyzed one by one,and the warning and alarm of each link was ensured that are reasonable and reliable.On site data showed that the temperature change curve of the goaf in a certain mining area was highly consistent with the distribution of the three zones of spontaneous combustion.The maximum temperature distribution in the goaf is in the oxidation rising zone on the return air side,with a maximum temperature of 34.5 ℃.The composition of the mixed gas in the goaf has not reached the explosive conditions,and there is no trend towards the development of explosive hazards.

关 键 词：煤层自燃 光纤测温 束管监测 自燃三带 爆炸三角形 

分 类 号：TD752.1[矿业工程—矿井通风与安全]