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Abstracts

Ventilation Abstracts (click to view abstracts)

Application of propeller fans at Wisconsin Industrial Sand - a case study (click to view entire paper in PDF format)
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.

Measurements and Simulations of Face Ventilation Effectiveness for Large Diesel Powered Equipment
Proceedings of the U.S. Bureau of Mines Technology Transfer Seminar, Louisville, Kentucky, April 1987 (IC-9141)
Authors: E. E. Thimons (USBM) and C. E. Brechtel (AAI)

Providing adequate airflow to effectively dilute and remove diesel pollutants in large mine working headings is a little researched area. A simulated diesel mucking operation was carried out in the Exxon Colony Pilot Mine in Colorado to establish expected levels of diesel pollutants in dead-end working headings. This heading was nominally 50-ft wide by 30-ft high. Two face ventilation systems were tested using sulphur hexafluoride tracer gas to represent the diesel pollutants. The results of these tests showed that conventional face ventilation systems operating at high flow rates could adequately ventilate diesel equipment in the 600- to 700-hp range, even in a 300-ft-long dead heading.

Ventilation Planning at the Aberdeen Mine
Proceedings of the 6th International Mine Ventilation Congress, Pittsburgh, Pennsylvania, 17–22 May 1997
Authors: A. M. Richardson and L. Gilbride (AAI), L. Adair (GENWAL, Inc.), and M. W. Glasson (Andalex, Inc.)

Andalex Resources, Inc. recently engaged in a ventilation planning exercise that resulted in the construction of a new main fan installation to support longwall coal mining at the Aberdeen Mine. This paper documents the planning process, including underground measurements, modeling, permitting, and construction of the new fan installation.

Ventilation Planning for the El Mochito Mine
Proceedings of the 6th U.S. Mine Ventilation Symposium, Salt Lake City, Utah, 21–23 June 1993
Authors: C. E. Brechtel and A. M. Richardson (AAI), and T. R. Kelly and F. Feero (American Pacific Mining Company, Inc.)

Recent work to upgrade the ventilation system for the el Mochito lead/zinc mine in central Honduras is discussed. Network modeling and underground measurements were used to evaluate cost-effective alternatives for achieving satisfactory ventilation in a complex and expanding underground operation. Both interim and long-term solutions were implemented to make mining possible under difficult conditions.

 
 

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