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Title Improve drill dust collector capture through better shroud and inlet configurations.

Imprint [Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2005]

Copies

Location Call No. OPAC Message Status
 Axe Federal Documents Online  HE 20.7132/2:512    ---  Available
Description 2 unnumbered pages : digital, PDF file.
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
Series Technology news ; no. 512
DHHS (NIOSH) publication ; no. 2006-108
DHHS publication ; no. (NIOSH) 2006-108.
Technology news (National Institute for Occupational Safety and Health) ; no. 512.
System Details Mode of access: Internet from the CDC web site. Address as of 03/18/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/2006-108.pdf; current access available via PURL.
Note Title from title screen (viewed on Mar. 18, 2008).
"Milestones in Mining Safety and Health Technology."
"October 2005."
Summary "Overexposure to airborne respirable crystalline silica (or quartz) dust can cause serious or fatal respiratory disease. In particular, some of the most severe cases of silicosis have been observed in surface mine rock drillers. A voluntary lung screening study conducted on surface coal mine workers in Pennsylvania concluded that the incidence rate of silicosis is directly related to age and years of drilling experience. Dust sampling data from the Mine Safety and Health Administration show that the drilling machine operator continues to frequently exceed the federally mandated quartz dust standard. Dry dust collection systems tend to be the most common type of dust control incorporated into drilling machines by original equipment manufacturers because of their capability to operate in various climates. This system includes a self-cleaning (compressed air back pulsing filters) dry dust collector sucking dust from underneath the drill deck shroud, which surrounds the hole being flushed by compressed air (bailing air). Previous drill studies have shown that over half of the dry collector dust emission problems are from the deck shroud and drill stem bushing leakage."--NIOSHTIC-2.
Subject Strip mining -- Dust control -- United States.
Strip mining -- Dust control. (OCoLC)fst01135446
United States. (OCoLC)fst01204155
Occupational Exposure.
Silicosis.
Added Author Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
Gpo Item No. 0499-F-27 (online)
Sudoc No. HE 20.7132/2:512

 
    
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