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煤矿掘进工作面通风方式采用的都是压入式风筒局部通风,风筒终点位置距离工作面迎头不远处。运用ANSYS数值模拟的手段对杉木树煤矿目前的局部通风进行了计算,得出了当进风量为4 m3/s时比进风量为5 m3/s时对迎头空间扰动要明显,更有利于瓦斯的排出,且节省了成本,研究了距迎头8 m位置的工作面空间的风流风速、能量分布及对通风形成的漩涡状态,最后通过分析断面的x方向风流速度情况,验证了风筒安置在工作面上部位置对瓦斯的排出更有利。
Ventilation of coal face heading face are used in the local ventilation fan duct, duct end of the face not far from the face heading. Using the method of ANSYS to calculate the current local ventilation in the Fushulin coal mine, it is found that when the inlet air flow is 4 m3 / s, the disturbance to the head space is more obvious than the inlet air flow rate is 5 m3 / s, The wind speed, energy distribution and the swirling state to the ventilation are studied. Finally, by analyzing the x-direction airflow velocity of the cross section, it is verified that the blower is placed in the space of 8 m, The upper part of the working face is more favorable to the gas drainage.