红外技术2024，Vol.46Issue(3)：354-361,8.
采空区遗煤自燃红外非接触探测距离研究
Research on Infrared Effective Detection Distance for Predicting Spontaneous Combustion of Goaf Residual Coal Based on Non-contact Mode
摘要
Abstract
The spontaneous combustion of residual coal in a goaf is a major cause of underground fire accidents in coal mines.Owing to the actual situation of underground goafs,existing detection methods cannot directly determine the true situation of residual coal thermal storage and spontaneous combustion.This study utilized the non-contact temperature measurement characteristics of the infrared thermal imager,and through the analysis of temperature measurement principles,experimental system design,and construction methods,conducts an experiment to measure the effective detection distance of the FOTRIC348 infrared thermal imager close to the real environment of the underground goaf,and verifies it in underground engineering.The results show that the effective detection distances of the FOTRIC348 in the regional,line,and point temperature measurement modes were 8 m to 12 m,10 m to 13 m,and 9 m to 13 m,respectively.The effective detection distance of FOTRIC348 during underground testing was 10 m to 12 m.Based on the intersection of the above detection distances,the effective detection distance of the FOTRIC348 infrared thermal imager for determining the thermal storage and spontaneous combustion stage of residual coal in the goaf of the two parallel grooves of the working face is 10 m to 12 m.Determining this value can provide a targeted decision-making basis for implementing prevention and control measures for spontaneous coal combustion in the goaf.关键词
红外热成像/采空区/煤自燃/探测距离/工程验证Key words
infrared thermal imaging/goaf/coal spontaneous combustion/detection range/engineering verification分类
矿业与冶金引用本文复制引用
王晓强,米万升,杨永辰..采空区遗煤自燃红外非接触探测距离研究[J].红外技术,2024,46(3):354-361,8.基金项目
河北省科学技术研究与发展计划资助项目(10276910D). （10276910D）
