Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Coal dust particle size survey of U.S. mines.

Authors
Sapko-MJ; Cashdollar-KL; Green-GM
Source
Proceedings of the Sixth International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions, Halifax, NS, Canada, August 27 - September 1, 2006. Halifax, Canada: Dalhousie University, 2006 Aug; 2:676-682
Link
NIOSHTIC No.
20031119
Abstract
The National Institute for Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA) conducted a joint survey to determine the range of coal particle sizes found in dust samples collected from intake airways of U.S. coal mines. The last comprehensive survey of this type was performed in the 1920s. The size of the coal dust is relevant to the amount of rock dust required to inert the coal dust, with more rock dust needed to inert finer sizes of coal dust. Dust samples were collected by MSHA inspectors from several mines in each of MSHA's ten bituminous Coal Mine Safety and Health Districts. Samples were normally collected in several intakes at each mine. The laboratory analysis procedures included acid leaching of the sample to remove the limestone rock dust, sonic sieving to determine the dust size, and low temperature ashing of the sieved fractions to correct for any remaining incombustible matter. The results indicate that particle sizes of mine coal dust in intake airways are finer than those measured in the 1920s. The significance of these finer coal dust sizes is discussed relevant to the amount of rock dust required to prevent coal dust explosions.
Keywords
Mining-industry; Coal-dust; Particulates; Particulate-dust; Dust-control; Dust-particles; Underground-mining; Coal-mining
Contact
Michael J. Sapko, NIOSH, Pittsburgh Research Laboratory, P.O. Box 18070, Cochrans Mill Road, Pittsburgh, PA 15236
Publication Date
20060827
Document Type
Conference/Symposia Proceedings
Email Address
MSapko@cdc.gov
Fiscal Year
2006
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
Proceedings of the Sixth International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions, Halifax, NS, Canada, August 27 - September 1, 2006
State
PA
TOP