地下开采的矿区要保持井下作业场所空气新鲜,常用通风系统不断送入新鲜空气,排走井下生产作业中形成的含有害成分的废气。主要井巷和作业场所由主通风机形成主风网完成换气过程。在主通风系统难以实现换气的场所,如正在掘进的独头井巷、边缘采矿点等,常借助局部通风机形成局部风 Underground mining area to keep underground mine air fresh, commonly used ventilation systems continue to send fresh air, discharge underground production operations formed in the harmful components of the exhaust. The main shaft and work site by the main fan to form the main wind network to complete the ventilation process. Ventilation in the main ventilation system is difficult to achieve the place, such as the tunnel is being drilled single-headed, edge mining points, etc., often by means of local fan to form a local wind