The transformation of the piping was made for the ventilation optimization,some practical measures for perfecting were taken,such as increasing the airshaft in the stope and using ...

• 实际测定结果表明,全系统的有效风量率达到75%25,主要风机平均运行效率70%25,彻底改善了井下通风条件,并取得明显的节能效果。