Safety protection method and device for coal mine safety gas

Abstract

The invention discloses safety protection equipment and method for coal mine safety gas. Mixed gas in a coal mine is pumped into a discharge pipeline through an air pump; the gas content of the mixed gas in the discharge pipeline is detected through a gas detector; when it is detected that the gas in the mixed gas is larger than a preset threshold value, the gas extraction direction is closed through a flow dividing valve on the gas extraction pump, and therefore the mixed gas in the coal mine is pumped into the ignition pipeline; mixed gas is ignited through a plurality of ignition structures on an ignition pipeline, and burnt liquid is drained into a spraying structure through a siphon drainage structure; atomization spraying is conducted in the coal mine through the spraying structure. The mixed gas is subjected to sealed electric combustion through the ignition structure, combustible gas is converted into carbon dioxide non-combustible gas through the characteristic that CH4 + 2O2 = ignition = CO2 + 2H2O, and the non-combustible gas and the mixed gas are mixed together, so that the phenomenon of combustion explosion of the mixed gas is avoided.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety protection, and in particular relates to a safety protection method and device for coal mine safety gas. Background technique [0002] Gas, also known as biogas, natural gas, its main component is methane. It is a colorless, odorless, tasteless, flammable and explosive gas. If the concentration of gas in the air is between 5.5% and 16%, an explosion can occur in the presence of an open flame. A gas explosion will generate high temperature, high pressure, shock waves, and emit toxic gases. [0003] Gas explosion is the most serious disaster in coal mines. It is highly destructive and sudden, and often causes a large number of casualties and property losses. In the process of dealing with gas explosion accidents, if the handling method is improper and the main points are not grasped accurately, multiple gas explosions may occur and cause the accident to expand. Therefore, understanding ...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above problems, and to design a safety protection method and device for coal mine safety gas, which solves the phenomenon that combustion and explosion are prone to occur in the existing exhaust process

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