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Standardized Construction of Mine Ventilating Doors

Description: Report issued by the U.S. Bureau of Mines discussing the development and construction of ventilation doors in mine operations. The importance of functioning ventilating doors is presented. The construction process is described in detail. This report includes an illustration.
Date: April 1944
Creator: Hartley, J. C. & Moschetti, A. C.
Partner: UNT Libraries Government Documents Department

Natural Ventilation of Michigan Copper Mines

Description: Technical paper issued by the Bureau of Mines over the ventilation of copper mines in Michigan. Natural ventilation of the mines and mining conditions are discussed. This report includes tables, maps, and illustrations.
Date: 1932
Creator: McElroy, G. E.
Partner: UNT Libraries Government Documents Department

Drilling and Dustiness of Metal-Mine Air

Description: Report issued by the U.S. Bureau of Mines on the air quality in metal-mines after using wet drills. Dust samples are collected and compared to samples collected from similar metal-mines in South Africa and Australia. This report includes tables.
Date: March 1922
Creator: Harrington, D.
Partner: UNT Libraries Government Documents Department

Ventilating Practices that Minimize Explosion Hazards in Bituminous-Coal Mines

Description: Report issued by the U.S. Bureau of Mines discussing mine ventilation designed to reduce explosion hazards. As stated in the scope and purpose of study, "this circular is intended to present important recommended practices that are necessary to minimize the possibilities of methane accumulations in coal mine and reduce the chances of ignitions from electrical sources" (p. 1). This report includes illustrations.
Date: September 1952
Creator: Ankeny, M. J.; Westfield, James & Kingery, D. S.
Partner: UNT Libraries Government Documents Department

Dust Control Considerations for Deep-Cut Mining when Utilizing Exhaust Ventilation and a Scrubber

Description: Abstract: The U.S. Bureau of Mines conducted a series of laboratory tests to investigate the effectiveness of using a flooded-bed scrubber with exhaust ventilation in deep-cut faces of up to 12.2 m in length. An experimental test program to determine the impact on respirable dust levels resulting from changes in face airflow, curtain setback distance, operator positioning, and operating parameters of the external spray system on the miner was completed. Gravimetric sampling was conducted in the immediate return and at three sampling locations on the off-curtain side of the entry. Statistically significant differences in dust levels on the order of 0.5 to 1.2 mg/m3 were observed between specific sampling locations and changes in several test parameters. Several of the statistically significant relationships were found at the inby operator position, which is the least desirable of the operator locations that were tested. The relative effectiveness of the dust control at the other sampling locations was not severely impacted with the scrubber operating. Dust control was the primary focus of this research; results indicated that a flooded-bed scrubber and exhaust ventilation can be a viable system for extracting deep cuts up to 12.2 m in length. The impact on methane was not evaluated.
Date: 1996
Creator: Colinet, Jay F. & Jankowski, Robert A.
Partner: UNT Libraries Government Documents Department