Coal and gas outburst simulator

Abstract

The invention discloses a coal and gas outburst simulator. The coal and gas outburst simulator comprises a high pressure sealing tank body, wherein a rapid explosion venting mechanism is arranged at one end of the high pressure sealing tank body, a piston rod is arranged at the other end of the high pressure sealing tank body, a burst opening is formed in the end part of the high pressure sealingtank body, the rapid explosion venting mechanism comprises a limiting mechanism, a U-shaped movable seat, an L-shaped connecting rod and a U-shaped fixed seat and also comprises a sealing mechanism which can move left and right and is fixed on the U-shaped movable seat, the U-shaped fixed seat is fixed at the top of the port of the burst opening through welding, and the L-shaped connecting rod isfixed at the top of the high pressure sealing tank body by virtue of a spindle; the sealing mechanism, a first telescopic spring and a first limiting bump cooperate, sealing of a sealing plug on the burst opening is more stable, a bigger simulation data error is prevented from being caused by air leakage; and by virtue of the rapid explosion venting mechanism, rapid flick of the sealing plug can be realized only by pulling an active plate, operation is easy, accuracy of simulation data can be improved, and an instantaneous value during explosion venting can be accurately measured.

Description

technical field [0001] The invention belongs to the technical field of coal and gas outburst, in particular to a coal and gas outburst simulation device. Background technique [0002] Coal and gas outburst is a special type of gas gushing phenomenon, that is, under the action of pressure, a large amount of broken coal and gas are suddenly ejected from the coal body to the mining space. Coal and gas outburst is a powerful natural disaster in coal mine production. It seriously threatens the safety of coal mine production and is extremely destructive. There are omens before each outburst, but the types and times of omens are different. Familiarity with and mastering omens is of great significance for timely evacuation of personnel and reduction of casualties. [0003] In most coal and gas outburst simulation devices, the sealing cover outside the outburst is manually opened and closed, but the opening and closing process is long, and the instantaneous value of coal and gas out...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a coal and gas outburst simulation device to solve most of the coal and gas outburst simulation devices proposed in the above-mentioned background technology. The sealing cover outside the protrusion is manually opened and closed, but the opening and closing process is relatively slow. Long, unable to measure the instantaneous value of coal and gas outburst explosion venting, which has a serious impact on the measurement results

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