To safely mine coal, engineers must prevent gas combustion and explosions, as well as\nseek feasible and reasonable techniques to control for these types of incidents. This paper analyzes\nthe causes and characteristics of methane combustion and explosions. Water mist is proposed to\nprevent and control methane combustion in an underground confined space. We constructed an\nexperiment platform to investigate the suppression of methane combustion using water mist for\ndifferent conditions. The experimental results showed that water mist is highly effective for methane\nflame inhibition. The flame was extinguished with water mist endothermic cooling. However,\nthe annular regions of water vapor around the fire played a vital role in flame extinction. Water from\nthe evaporating mist replaces the oxygen available to the fuel. Additionally, the time required for\nfuel ignition is prolonged. For these reasons, the water particle action to flame surface is reinforced\nand the fuel�s reaction with air is delayed. As a result, flame stretching and disturbances occur, which\nserve to extinguish the flame. Engineering application tests were carried out in the goaf, drill hole\nand upper-corner to investigate the prevention and control of methane gas combustion, with the\nresults showing a good application effect.
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