Intelligent inert injection, cooling and fire prevention system for goaf under coal mining condition and implementation method

Abstract

The invention belongs to the technical field of mining, and particularly relates to an intelligent inert injection cooling and fire prevention system for a goaf under the coal mining condition and an implementation method. The system comprises a temperature measurement module, goaf inert gas injection cooling fireproof simulation software and an inert gas injection cooling module, wherein the temperature measurement module is used for monitoring temperature data of different depths of a goaf before inert gas is injected; the simulation software is in signal connection with the temperature measurement module and is used for simulating to obtain the high-temperature area position and the highest temperature of the goaf according to the monitored temperature data before the inert gas is injected and goaf basic parameters obtained in advance, comparing the simulation result with the monitored temperature data, and when the comparison result is matched, sending the simulation result to the temperature measurement module; determining implementation parameters of the inert gas by adjusting the parameters of the inert gas; the inert gas injection cooling module is in signal connection with the simulation software and used for cooling the inert gas according to the implementation parameters of the inert gas and then injecting the inert gas into the goaf. The temperature of inert gas during injection can be effectively reduced, the gas utilization rate is increased, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to an intelligent inert injection cooling fire prevention system and an implementation method in a goaf under coal mining conditions. Background technique [0002] Under coal mining conditions, spontaneous combustion in goafs seriously threatens mine safety and is one of the main obstacles to high-efficiency production in comprehensive mining faces. Coal residues in the goaf and the working face are unavoidable in the process of coal mining. Coal particles combine with oxygen in the fresh air flow to undergo oxidation reactions and continuously accumulate heat, which eventually leads to spontaneous combustion of the coal residue in the goaf. This is the pressure field and oxygen concentration field. As a result of multi-field coupling with the temperature field, there are many influencing factors, and there is a certain degree of difficulty in prediction and evaluation. ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an intelligent inert injection and cooling fire protection system and implementation method in the goaf under coal mining conditions, so as to solve or alleviate the problems in the above-mentioned prior art

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