长距离独头巷道通风的改进

The improvement of ventilation in long single entry

用密闭硐室串联风机 ,采用两抽一压混合式通风较好地解决了长距离独头巷道通风难题 ,有效地排除了工作面炮烟 ,降低了粉尘浓度 ,获得了满意的效果。

Mounting fans in series in closed adit and using two fans as air extractor and one fan for pressing air,the difficult problem of ventilation in long single entry was well-solved,the blasting smoke in working face were removed effectively and the density of dust lowered.