Coal Mine Fire Safety Assessment System by Composition of Indicator Gases

2025

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DOI 10.52209/1609-1825_2025_4_57
Data confidence 70 medium
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Abstract

The problem of recognizing the early stage of spontaneous combustion of coal is one of the most important for preventing endogenous fires in mines. Developed fires and possible subsequent explosions of the dust-gas-air mixture, in addition to accidents, can lead to serious environmental consequences in the mine area. Research and development of methods for determining the stages of self-heating of coal in the oxidation process is still relevant for miners. The developed information and analytical system is based on the gas analytical method and is aimed at operational management of measures for fire protection of mines. The analytical unit of the system is based on previously performed experimental studies of the dependence of the self-heating temperature of coal on the ratios of the content of indicator fire gases in samples of the mine atmosphere. Information about the composition of the mine atmosphere can be obtained by direct sampling or through specially installed air monitoring sensors. At the output, a graphical representation of the dynamics of the self-heating temperature of coal makes it possible to assess the state of endogenous fire hazard in the controlled section of the mine. It is possible to include the developed system in scientific and methodological documents on the prevention of endogenous fires for the Karaganda basin.