Details:

Personal Author:
Organiscak, J. A. ; Cecala, A. B.
Organiscak, J. A. ; Cecala, A. B. Less -
Corporate Authors:
National Institute for Occupational Safety and Health.
Conference Authors:
Society for Mining, Metallurgy, and Exploration (U.S.). Meeting (2008 : February 24-27 : Salt Lake City, UT)
Description:
Enclosed cabs are a primary means of reducing the silica dust exposure of equipment operators at surface mines. The National Institute for Occupational Safety and Health (NIOSH) has investigated various factor effects on enclosed cab air filtration system performance. Factors experimen­tally investigated were intake filter efficiency, intake air leakage, intake filter loading (filter flow resistance), recirculation filter use and wind velocity effects on cab penetra­tion (inside to outside cab concentration ratio). Adding an intake pressurizer fan to the filtration system was also investigated. Results indicate that the intake filter efficiency and recirculation filter were the two most influential factors on cab penetration .Use of a recirculation filter significantly reduced cab penetration over the intake air filter by itself due to the multiplicable filtration of the cab interior air. Cab penetration was also affected to a lesser extent by intake filter loading and air leakage. Adding an intake pressurizer fan notably increased intake airflow and cab pressure while providing only minor changes to cab penetration.
Subject:
[+]
Mining

Source:
2008 SME Annual Meeting and Exhibit, February 24-27, Salt Lake City, Utah, Preprint 08-048. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2008 Feb; :1-5
Document Type:
Book Chapter
Genre:
Conference Publications
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:dbbb74f0256ef6a01f24643be0a71ad05033f3efd517f07f871b419b723bf9d3
File Type:

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