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Reducing enclosed cab drill operator's respirable dust exposure at a surface coal operation using a retrofitted filtration and pressurization system.

Authors
Cecala-AB; Organiscak-JA; Heitbrink-WA; Zimmer-JA; Fisher-T; Gresh-RE; Ashley-JD
Source
Trans Soc Min Metal Explor 2003 Dec; 314:31-36
NIOSHTIC No.
20026083
Abstract
The mobile equipment used in surface coal mining often has enclosed cabs to protect equipment operators. The overburden removal process is extremely dusty and can cause excessive exposure to respirable dust, especially crystalline silica. After the equipment has been used for years, many components of the enclosure deteriorate, and its effectiveness is greatly reduced. This paper discusses a cooperative research study performed on an Ingersoll Rand DM45E surface drill, retrofitted with a new Sigma pressurization and filtration system. Respirable dust concentrations in the drill cab were substantially reduced from 0.64 milligrams per cubic meter during pretesting to 0.05 milligrams per cubic meter during posttesting with the new system, a 92% reduction. This new system seems to be a very well built and sturdy device that is well suited for the mining industry.
Keywords
Mining-equipment; Respirable-dust; Dusts; Surface-mining; Coal-mining; Equipment-operators; Silica-dusts; Health-hazards; Occupational-hazards; Dust-exposure; Enclosed-cabs; Filtration; Dust-sampling; Dust-measurement; Drill-operators
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
CODEN
TMENAE
Publication Date
20031201
Document Type
Journal Article
Editors
Yernberg-WR
Funding Type
Grant
Fiscal Year
2004
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-OH-08491
ISSN
1075-8623
NIOSH Division
PRL
Source Name
Transactions of the Society for Mining, Metallurgy, and Exploration
State
PA; OH; IL; VA; KY; IA
Performing Organization
University of Iowa
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