Gas extraction and coal spontaneous combustion coupling disaster-causing experimental simulation apparatus and method
A technology of gas drainage and experimental simulation, which is applied in the direction of chemical analysis by means of combustion, can solve the problems of gas pressure, coal quality, single stress state, large difference in occurrence state, and high chance probability, etc., to achieve convenient sampling test , saving materials and construction time, high scientific and precise effect
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[0030] The present invention will be further explained below in conjunction with the drawings.
[0031] Such as figure 1 , Gas extraction and coal spontaneous combustion coupling disaster simulation device, including pressure-resistant and heat-insulated sealed tank 1, gas extraction and gas injection device, and monitoring and monitoring device; said gas extraction and gas injection device includes vacuum extraction pump 11 and constant pressure gas injection device, The constant pressure gas injection device includes a gas injection bottle with a pressure gauge 2, a first gas switch valve 3-1, a pressure reducing valve 4, a first explosion-proof gas washing box 5-1, a gas drying box 6, and a constant temperature heating box 7. The first regulator valve 8-1, the first pressure gauge 9-1, the first flow meter 10-1 and the second gas switch valve 3-2; the monitoring and monitoring device includes a plurality of temperature sensors 21, temperature analysis The instrument 13 and the...
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