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Mining Publication: Post-Explosion Observations of Experimental Mine and Laboratory Coal Dust Explosions
Keywords: Bituminous coal Coal dust Explosions Mine Safety and Health Administration
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: August 2006
Authors: KL Cashdollar, ES Weiss, TG Montgomery, JE Going
Conference Paper - August 2006
Download PDF Document (0.71 MB)
NIOSHTIC2 Number: 20031123
Proceedings of the Sixth International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions (Halifax, NS, Canada, Aug. 27 - Sept. 1, 2006), Halifax, Canada: Dalhousie University, 2006 Aug; 2:662-675
The Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA) conducted joint research on dust explosions by studying post-explosion dust samples. The samples were collected after full-scale explosions at the PRL Lake Lynn Experimental Mine and after laboratory explosions in the PRL 20-L chamber and the Fike 1 -m3 chamber. The dusts studied included both high and low volatile bituminous coals. Low temperature ashing for 24 hr at 515°C was used to measure the incombustible content of the dust before and after the explosions. The data showed that the post-explosion incombustible content was always as high as or higher than the initial incombustible content. The MSHA alcohol coking test -was used to determine the amount of coked dust in the post-explosion samples. The results showed that almost all coal dust that was suspended within the explosion flame produced significant amounts of coke. Measurements of floor dust concentrations after LLEM explosions were compared to the initial dust loadings to determine the transport distance of dust during an explosion. All of these data will be useful in future forensic investigations of accidental dust explosions in coal mines or elsewhere.
Image of publication Post-Explosion Observations of Experimental Mine and Laboratory Coal Dust ExplosionsConference Paper - August 2006
Download PDF Document (0.71 MB)
NIOSHTIC2 Number: 20031123
Proceedings of the Sixth International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions (Halifax, NS, Canada, Aug. 27 - Sept. 1, 2006), Halifax, Canada: Dalhousie University, 2006 Aug; 2:662-675
See Also
Coal Dust Explosibility
Coal-Dust Explosion Tests in the Experimental Mine 1919 to 1924, Inclusive
Evaluation of the Bagged Stone Dust Barrier Effectiveness in a Bord and Pillar Mine
The Explosibility of Coal Dust
Investigation of Coal Properties and Airborne Respirable Dust Generation
Mitigating Coal Dust Explosions in Modern Underground Coal Mines
Observations of Post-Explosion Dust Samples From an Experimental Mine
Post-Explosion Observation of Experimental Mine and Laboratory Coal Dust Explosions
Rock Dusting Considerations in Underground Coal Mines
Technology News 515 - Float Coal Dust Explosion Hazards
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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