Fire fighting method of feeding gas of carbon dioxide into roadways in mine

Abstract

A method for extinguishing the accident fire in the roadway of mine shaft includes such steps as closing the gate of mint shaft and all blow holes of the roadway, drilling a hole at the position near the fire region, and filling CO2 gas in the roadway via said hole.

Description

technical field [0001] The invention relates to an underground fire extinguishing technique, which is mainly suitable for eliminating hidden fires and open fires in coal mine roadways or goafs. Background technique [0002] Fire is one of the major disasters that often occur during the mining process of coal mines and other mines. It can not only destroy the mine construction facilities, but also cause the gas explosion to collapse the shaft and burn the coal seam, eventually making the man-made construction come to naught. The loss of resources leads to a large loss of human property and property. Therefore, after a fire occurs, rapid fire extinguishing and timely rescue are necessary means to reduce losses and ensure the safety of employees. At present, after a fire occurs in a coal mine roadway, all well doors and ventilation holes are often closed in order to cut off the supply of oxygen in the roadway to achieve fire extinguishing. Obviously, this method takes a long ti...

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Problems solved by technology

According to relevant information, there is also a method of injecting inert gas into the roadway to extinguish the fire. This method requires special equipment, the cost of fire extinguishing is high, and the effect is not ideal, and the fire extinguishing speed is relatively slow.

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