14th United States/North American Mine Ventilation Symposium, University of Utah, Salt Lake City, Utah, June 17, 2012 Authors: S. B. Patton and G. L. Skaggs (Agapito Associates, Inc.) and S. Britton (Baja Mining Corporation) Boleo is an underground copper-cobalt-zinc-manganese project currently under construction near the town of Santa Rosalía in the state of Baja California [...]
Publications: Ventilation Engineering
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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 [...]
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 [...]
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 [...]
Mining Engineering, Volume 59, No. 9, September 2007, pp. 57–60Authors: 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, [...]
U.S. Bureau of Mines, RI-9006, 1985 Authors: E. D. Thimons (USBM), and C. E. Brechtel, M. E. Adams, and J. F. T. Agapito (AAI) The performance of two large-capacity ventilation systems was compared through tests conducted in a large dead-end heading at a pilot oil shale mine in Colorado. Sulfur hexafluoride tracer gas was used [...]
3rd Mine Ventilation Symposium, Pennsylvania State University, University Park, Pennsylvania, October 1987 Authors: M. E. Adam (Tenn-Luttrell, Inc.), C. E. Brechtel and J. F. T. Agapito (AAI), and E. D. Thimons (USBM) Full-scale stopping and simulated overcast structures were constructed in large opening (30-ft high by 55-ft wide) room-and-pillar excavations in an oil shale mine. [...]
SME Annual Meeting and Exhibit, Las Vegas, Nevada, February 1989 Authors: L. A. Weakly (Exxon Company), C. E. Brechtel (AAI), N. Paas (Mine Craft, Inc.), and R. A. Skrabak (MSHA) The requirement for large diesel equipment to be certified for operation in potential gassy mine conditions in western oil shale mines motivated a design engineering [...]
Bureau of Mines, Report of Investigations 9219 Authors: C. E. Brechtel (AAI) and E. D. Thimons (USBM) Cooperative research efforts by the Bureau of Mines and Agapito & Associates, Inc., Grand Junction, CO, used a one-dimensional, finite-element computer model to simulate turbulent mass transfer in face ventilation of oil shale mines. The objective was to [...]
2nd U.S. Mine Ventilation Symposium, Reno, Nevada, 23–25 September 1985 Authors: C. E. Brechtel, M. E. Adam, and J. F. T. Agapito (AAI), and E. D. Thimons (USBM) The performance of two large-capacity face ventilation systems was measured using sulfur hexaflouride tracer gas tests in a large dead-end heading at the Colony shale oil mine. [...]
