Coal mine flame-retardant and explosion-proof device

Abstract

The invention relates to the technical field of coal mine flame-retardant devices, in particular to a coal mine flame-retardant explosion-proof device. The coal mine flame-retardant explosion-proof device comprises a high-pressure gun, a trigger device, a trigger rod and an spraying device, 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 trigger rod is installed at the top in the coal mine tunnel through the hanging device, a trigger plate is arranged at one end of the trigger rod, and the other end of the trigger rod is installed on the trigger device. According to the 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 uniformly distributed in a 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 flame retardant and explosion-proof device for coal mines. 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 can reach 20000ppm, and the conce...

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Problems solved by technology

[0004] However, in the above-mentioned 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 storage material The space in the warehouse reduces the reserve of fire extinguishing powder, and the flame-retardant and explosion-proof effect is not good; (2) the high-pressure tank is 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 (3) The high-pressure gas in the high-pressure tank needs to go backward to the sealing vent hole first, and then turn back to impact the fire extinguishing powder, so that the time from triggering the device to the spraying of the fire extinguishing powder is too long. It is conducive to the rapid and uniform distribution of fire extinguishing powder in the roadway, which affects the fire extinguishing effect; (4) The high-pressure tank is in the storage bin, which is not conducive to the sealing of fire extinguishing powder, which is easy to cause powder leakage or moisture, and it is inconvenient to replace fire extinguishing powder regularly

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