Coal mine one-way receiving and two-way spraying flame-retardant explosion-proof device

Abstract

The invention relates to the technical field of coal mine flame-retardant devices, in particular to a coal mine one-way receiving and two-way spraying flame-retardant explosive-proof device. The coal mine one-way receiving and two-way spraying flame-retardant explosive-proof device comprises a high-pressure gun, a trigger device, trigger rods and an spraying device, wherein the high-pressure gun is arranged on one side of the trigger device, the spraying device is arranged on the other side of the trigger device, the explosive-proof device is installed at the top in a coal mine tunnel through a hanging device, fire extinguishing powder is arranged in the spraying device, the spraying device comprises a bidirectional triggering sliding sleeve, and the triggering rods comprise the first triggering rod and the second triggering rod. According to the coal mine one-way receiving and two-way spraying flame-retardant explosion-proof device, the high-pressure gun is arranged outside the spraying device, more fire extinguishing powder can be stored in the spraying device, and compared with the prior art, no cavity is generated in the center when the fire extinguishing powder is sprayed out, so that the fire extinguishing powder is more uniformly distributed in the tunnel, the high-pressure gun does not occupy the space in the spraying device, sealing of the fire extinguishing powder is facilitated, powder leakage or damp is prevented, and regular replacement of the fire extinguishing powder is facilitated.

Description

technical field [0001] The invention relates to the technical field of flame retardant devices for coal mines, in particular to a coal mine one-way receiving and two-way eruption flame retardant and explosion-proof device. Background technique [0002] In coal mines, explosions are generally divided into two categories, namely gas explosions and coal dust explosions. Regardless of whether it is a gas explosion or a coal dust explosion, its hazards are generally divided into four categories: first, high temperature. Mine fires, burnt equipment, burnt personnel; second, high pressure, the gas pressure after the gas explosion is 7 to 10 times the gas pressure before the explosion through experiments and theoretical calculations, and the theoretical pressure of the coal dust explosion can reach 735kPa, which can damage equipment, Push down the frame, causing roof fall and casualties; third, toxic and harmful gas, the concentration of carbon monoxide produced after gas explosion...

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Problems solved by technology

[0004] However, in the above device, the high-pressure tank is installed in the storage bin, which causes corresponding problems in the explosion-proof device: (1) The high-pressure tank occupies a large amount of space in the storage bin, which reduces the reserve of fire extinguishing powder, and the flame-retardant and explosion-proof The effect is not good; (2) The high-pressure tank occupies a lot of space in the storage bin. When the device triggers the spraying of fire extinguishing powder, a cavity will be formed in the central part, and the distribution of fire extinguishing powder is uneven, which affects the effect of flame retardant and explosion proof; (3) The high-pressure gas in the high-pressure tank needs to go backwards to the sealing vent hole first, and then turn back to impact the fire extinguishing powder, which makes the time from the triggering of the device to the spraying of the fire extinguishing powder too long, which is not conducive to the rapid and uniform distribution of the fire extinguishing powder in the roadway, affecting Fire extinguishing effect; (4) The device can only deal with the explosion in one direction in the roadway, and cannot block the explosion and combustion in the other direction

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