Mining Engineering, Volume 59, No. 9, September 2007, pp. 57–60
Authors: Albert Adu-Acheampong and B. McGunegle (AAI) and T. Stauffer (Wisconsin Industrial Sand)

Fairmount Minerals’ Maiden Rock underground sand mine historically delivered air to ventilate diesel-powered equipment at its working faces through resistance, 38-mm- (15-in.-) diameter PVC distribution lines.  In support of plans for expanded production, three new, low-resistance ventilation design alternatives were analyzed.  The study determined that adequate ventilation for expanded production was possible with various commercially available, high-volume/low-pressure fans combined with a systematic layout of control structures.  The recommended redesign was implemented in 2001, resulting in a significant increase in flow volumes and a noticeable improvement in the mine environment.

Downloadable PDF:  Application of propeller fans at Wisconsin Industrial Sand – a case study

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