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Mining Publication: Coal-Dust Explosion Tests in the Experimental Mine 1919 to 1924, Inclusive
Keywords: Coal dust Explosions U.S. Bureau of Mines
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: January 1927
Authors: GS Rice, JW Paul, HP Greenwald
NIOSH/USBM Numbered Publication - January 1927
Download PDF Document (3.07 MB)
NIOSHTIC2 Number: 20037439
Pittsburgh, PA: U.S. Department of Commerce, Bureau of Mines, Bulletin 268, 1927 Jan; :1-176
This paper reports US Bureau of Mines (USBM) research on the explosibility of coal dusts. The purpose of this work is to improve safety in mining and other industries that process or use coal. Most of the tests were conducted in the USBM 20 litre laboratory explosibility chamber. The laboratory data show relatively good agreement with those from full-scale experimental mine tests. The parameters measured included minimum explosible concentrations, maximum explosion pressures, maximum rates of pressure rise, minimum oxygen concentrations, and amounts of limestone rock dust required to inert the coals. The effects of coal volatility and particle size were evaluated, and particle size was determined to be at least as important as volatility in determining the explosion hazard. For all coals tested, the finest sizes were the most hazardous. The coal dust explosibility data are compared to those of other hydrocarbons, such as polyethylene dust and methane gas, in an attempt to understand better the basics of coal combustion.
Image of publication Coal-Dust Explosion Tests in the Experimental Mine 1919 to 1924, InclusiveNIOSH/USBM Numbered Publication - January 1927
Download PDF Document (3.07 MB)
NIOSHTIC2 Number: 20037439
Pittsburgh, PA: U.S. Department of Commerce, Bureau of Mines, Bulletin 268, 1927 Jan; :1-176
See Also
A Centennial of Mine Explosion Prevention Research
Coal Dust Explosibility
Evaluation of the Bagged Stone Dust Barrier Effectiveness in a Bord and Pillar Mine
The Explosibility of Coal Dust
First Series of Coal-Dust Explosion Tests in the Experimental Mine
How Does Limestone Rock Dust Prevent Coal Dust Explosions in Coal Mines?
Mitigating Coal Dust Explosions in Modern Underground Coal Mines
Observations of Post-Explosion Dust Samples From an Experimental Mine
Rock Dusting Considerations in Underground Coal Mines
Technology News 515 - Float Coal Dust Explosion Hazards
Page last reviewed: September 28, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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