Deep mining of coal oxidation characteristics deformation test apparatus

The present invention relates to deep mining metamorphosed coals the oxidation characteristics of the test apparatus, particularly relates to a coal spontaneous oxidation characteristic test device at multiple high stress, high temperature, high gas flow pressure, gas concentration and flow rate and high strength mining deformation complex environment. The device consists of a circular cavity, the hydraulic control system, air supply control system and a gas collection system. Characterized in that the circular cavity with the external hydraulic control system, air supply control system and a gas collection system is connected, the coal sample prepared into intact circular cavity, adjusting the pressure and temperature inside the cavity of the experiment, so that the chamber coal gas concentration in vivo environment in line with the actual occurrence of the seam, and then adjusting the air supply system, the flow rate and pressure, open the inlet valve is set to provide the experimental coal gas source, opening the outlet valve and release the gas collection and temperatures , and the experimental coal sample temperature change and the internal stress and strain parameters for this analysis mining coal oxidation characteristics of the deformation.