Spontaneous combustion explosion experiment system of coal slack mountain

The invention provides a coal gangue dump spontaneous combustion explosion experiment system, which is characterized in that a hollow cylinder is laid by stone bricks; bricks are laid on the internal lower surface of the hollow cylinder; coal gangues are accumulated inside the cylinder; a heating source and a thermocouple are embedded into the coal gangues; a pressure sensing probe, a flue gas sensing probe and a spraying nozzle are arranged above the coal gangues. The experiment system of the invention adopts an external heating method to quicken the combustion reaction velocity of the coal gangue samples, reduce the size of experiment, shorten the experimental period and iconically reflect the effects of rainfall on the explosion of the spontaneous combustion coal gangue dump. The experiment system of the invention has flexible operation, simple, safe and reliable structure, can be repeatedly used and can analyse the factor inducing the explosion of the spontaneous combustion coal gangue dump under the rain