Abstract
According to Zhao Zhuang coal mine coal preparation plant of coal field, this paper adopt methods of theoretical analysis, monitoring and test research, studied the distribution of gas migration regularity and optimized the structure of coal preparation plant bunker. Adopt the natural ventilation system to replace the original coal power fan system, effectively controlled of the coal gas concentration below 0.5%, and obtained the good effect of gas control, and created the better economic and social benefits. This study is of great significance to the control of coal bunker gas in other mining areas.
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