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| Study on gas-coal dust explosion characteristics |
| Xu Tingting1, Li Shugang2, Hao Huibin2, Hao Xiaogang2, Hou Liangke2 |
| 1. Wajinwan Coal Industry Corporation Ltd., Datong Mining Group, Datong 037042, China; 2. Yuwu Mining Corporation, Lu'an Group, Changzhi 046100, China |
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Abstract The gas explosion in Waijinwan Coal Industry was taken as the research object, aiming at the process of gas and coal-dust explosion shock wave propagation characteristics, chemical reaction model and tunnel simulation were created appropriately through theoretical analysis, and Fluent software was used to numerically simulate the gas-coal dust explosion process. The numerical simulation of the gas-dust explosion process with Fluent software, the cloud of pressure wave and temperature during the explosion of coal dust, and the relationship between the influence of coal dust of different particle sizes on the explosion pressure value were got, a theoretical basis for the explosion protection of high gas roadways was provided.
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