Numerical simulation study on suppression of inclined mine roadway fire disaster by fine water mist
In order to explore the distribution pattern of smoke in mine roadway fire disasters caused by internal and external factors in inclined roadways,and to address the serious threat of high-temperature toxic smoke to underground personnel's disaster avoidance and rescue work during mine fires,the Fluent numerical simulation was used to construct a 1:1 inclined roadway model.By adding a fine water mist system,the smoke movement and temperature changes in inclined roadways under 7 slopes and 2 fire source powers were studied.The results showed that under the condition of inclined roadway without fine water mist,the downstream roof temperature contin-uously increases with the increase of roadway slope,and the highest temperature reaches 265 ℃ when the roadway slope is 20°.The in-clined roadway condition with the addition of fine water mist results in a continuous decrease in downstream roof temperature with the increase of roadway slope.As the slope increases,the cooling effect of fine water mist becomes more pronounced.
fine water mistroof temperaturesmokeinclined roadwaynumerical simulation
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