Automatic isolating door for poison gas generated after gas explosion of mine

Abstract

The invention relates to a mine ventilating safety facility, in particular to an automatic isolating door for poison gas generated after gas explosion of a mine. The automatic isolating door mainly consists of a door body 1, a compression delay switch 6, a folding draw bar 9 and a spring hinge 11, before the gas explosion of the mine, the automatic isolating door is opened, and the spring hinge 11 stores elastic potential energy; after the gas explosion of the mine, a pressure-bearing plate 6I is pressed by the aid of impact waves, a sleeve 6F jumps out from a groove of a lock pin 6D, the lock pin 6D moves to the direction of a door side 10, and the automatic isolating door is closed automatically under effects of the spring hinge 11. The automatic isolating door not only can effectively prevent the poison gas from spreading, but also is simple in structure and can be closed automatically, and pedestrians enter and exit from the door conveniently and freely. In addition, by the aid of the folding draw bar 9, the problem that the automatic isolating door is not closed tightly under effects of other external force such as the poison gas and the like or is opened due to excessive closing is avoided; and simultaneously, a time delaying effect can be realized due to the compression delay switch 6, over large impact waves smoothly pass through the door before the door is closed, and accordingly the automatic isolating door is protected.

Description

Technical field: [0001] The invention relates to mine ventilation safety facilities, in particular to an automatic isolation door for mine gas explosion poisonous gas. Background technique: [0002] Mine gas explosions will cause a large number of miners casualties and heavy property losses. The main cause of miners' casualties is poisonous or suffocation caused by toxic and harmful gases such as methane and carbon monoxide produced by gas explosions; and the shock waves generated will cause varying degrees of damage to ventilation facilities, and the ventilation system cannot meet the original requirements. [0003] At present, most coal mines in my country use negative pressure ventilation. Once a gas explosion occurs underground, the explosion shock wave will open the explosion-proof door, preventing the shock wave from damaging the main ventilator. Wind, the negative pressure extraction ventilation is changed to positive pressure push-in ventilation, but reverse ventilat...

AI Technical Summary

Problems solved by technology

The main cause of miners' casualties is poisonous or suffocation caused by toxic and harmful gases such as methane and carbon monoxide produced by gas explosions; and the shock waves generated will cause varying degrees of damage to ventilation facilities, and the ventilation system cannot meet the original requirements

[0003] At present, most coal mines in my country use negative pressure ventilation. Once a gas explosion occurs underground, the explosion shock wave will open the explosion-proof door, preventing the shock wave from damaging the main ventilator. Wind, the negative pressure extraction ventilation is changed to positive pressure push-in ventilation, but reverse ventilation is started, it is difficult to achieve the anti-wind within the specified time and ensure the air supply requirements, causing the poisonous gas produced by the gas explosion to diffuse along the roadway, Confused miners under varying concentrations of toxic gas, some even poisoned or suffocated by inhaling the gas

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