【摘要】 对金岭铁矿召口分矿东召口矿区的自然通风量进行测定 ,计算自然风压及风阻值 ,从而利用自然风进行通风 ,不仅保证了井下作业所需风量 ,而且节约主扇用电费用 3.92 8万元 /a更多还原

【Abstract】 Through determining natural ventilation quantity,calcelating natural wind pressure and wind resistnace value the ventilation with natural wind has been used in Dongzhaokou field of Zhaokou branch mine of Jinling iron mine.Not only ensures required wind rate of production process under shaft but it saves of power cost used in main fan of 0.0398 million yuan/a as well.更多还原