机电工程技术2023，Vol.52Issue(12)：19-22,4.DOI:10.3969/j.issn.1009-9492.2023.12.005
煤矿井下采空区有毒有害气体实时在线监测系统的研究与实现
Research and Realization of Real-time Online Monitoring System for Toxic and Harmful Gases in Coal Mine Goaf
摘要
Abstract
Due to limited mining technology,there is a large amount of toxic and harmful gases in old coal mine goafs.For the above problems,the complex situation of residual coal occurrence in the goaf of overlying old kiln is investigated,and the safety hazard caused by toxic and harmful gases in the goaf to the coal seam remining is analyzed.The overlying old kiln is taken as the research object.On the basis of the existing halo network of the mine,the real-time online monitoring system of overlying old kiln toxic and harmful gases is designed based on CAN bus.Gas sensors collect toxic and harmful gases,namely,CO,CH4,CO2,C2H4,O2 and so on,in the goaf of coal mines in real-time,and fiber optic temperature sensors are used to monitor underground temperatures in real-time;the upper computer based on MCGS configuration is used to remotely monitor the underground status,an industrial gateway is built to upload data to the coal mine's optical ring network to realize the function of real-time monitoring of the underground state in the monitoring room,and early warning of toxic and harmful gases and coal spontaneous combustion in the underground.The comparison between the system collected data and manual collected data show that the variation of the two data is consistent,with a data error of less than 5%.After six months of actual operation in the downhole,the system has proved that it can be used to timely feedback the toxic and harmful gases,as well as temperature abnormalities in the downhole,achieving the effect of early warning and providing strong support for the re mining of overlying old kiln residual coal.关键词
采空区/有毒有害气体/实时采集/RS485/在线监测Key words
goaf/toxic and harmful gases/real-time acquisition/RS485/online monitoring分类
矿业与冶金引用本文复制引用
李美凤,于伟家,杜世伟,贾伟伟,詹新生..煤矿井下采空区有毒有害气体实时在线监测系统的研究与实现[J].机电工程技术,2023,52(12):19-22,4.基金项目
国家自然科学基金资助项目(62241604) （62241604）
