Infrared detecting method for concealed fire spot of self-ignition coal in coal tunnel
A technology for infrared detection and spontaneous combustion of coal, used in radiation pyrometry, measuring heat, measuring devices, etc.
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[0045] The infrared detection method of the present invention is carried out during the excavation of the coal roadway and the formation and advancement of the working face. After the coal roadway is excavated, the entire coal roadway can be detected, and the background infrared radiation intensity is given; the easy-to-oxidize section is found through infrared detection, and then through further detection, especially the key detection of the easy-to-oxidize section, the coal mine is found out. For the abnormal temperature section of the concealed fire source in the alley, the position and temperature of the concealed fire source point are calculated by inverting the heat conduction equation from the measured data.
[0046] Now take the infrared detection of the hidden fire source point along the trough of the 4308 track in Nantun Coal Mine as an example to illustrate. The 4308 track is along the trough of Nantun Mine 13 上 03 The track trough of the working face, the upper pa...
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