According to the question about preheationg winter incoming wind in coal mine of northeast area,the thought of preheating winter incoming wind by using waste drift is put forward.The method is good at saving energy and has strong feasibility,showed by pra
According to the question about preheationg winter incoming wind in coal mine of northeast area,the thought of preheating winter incoming wind by using waste drift is put forward.The method is good at saving energy and has strong feasibility,showed by pra
针对东北地区煤矿冬季入风流预热问题，提出了利用废旧巷道预热入风流的设想，通过实例计算说明，此方法节能效果好，可行性强。