The Development of Low Pressure Fans and Their Application in Metal Mines
Organization: The Australasian Institute of Mining and Metallurgy
Jan 1, 1988
In many metal mines in China,the 70B2 series of fans has been used for main fans for a long time.These fans generate higher static pressures than are required for the relatively high equivalent orifices of the ventilation systems of many of the mines. As a consequence, their running efficiency is common only around 30%. The loss of power is significant.