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A noise control package for vibrating screens.

Authors
Lowe-MJ; Yantek-DS; Yang-J; Schuster-KC; Mechling-JJ
Source
Noise Control Eng J 2013 Mar-Apr; 61(2):127-144
NIOSHTIC No.
20042792
Abstract
Hearing loss was the second-most common illness reported to the Mine Safety and Health Administration (MSHA) in 2009. Furthermore, between 2000 and 2010, 30% of all noise-related injury complaints reported to MSHA were for coal preparation plant employees. Previous National Institute for Occupational Safety and Health (NIOSH) studies have shown that vibrating screens are key noise sources to address in order to reduce coal preparation plant noise. In response, NIOSH researchers have developed a suite of noise controls for vibrating screens consisting of constrained layer damping (CLD) treatments, a tuned mechanism suspension, an acoustic enclosure, and spring inserts. Laboratory testing demonstrates that this noise control suite reduces the A-weighted sound power level of the vibrating screen by 6 dB. To provide a comparison to laboratory results and prove durability, field testing of two noise controls was performed on a vibrating screen in aworking coal preparation plant. The spring inserts and CLD treatments were selected due to their ease of installation and practicability. Field testing of these controls yielded reductions that were comparable to laboratory results.
Keywords
Hearing-loss; Hearing; Hearing-impairment; Noise; Noise-exposure; Noise-induced-hearing-loss; Coal-processing; Vibration-exposure; Vibration; Laboratory-testing; Exposure-levels; Risk-factors
Contact
M. Jenae Lowe, NIOSH, 626 Cochrans Mill Rd, P.O. Box 18070, Pittsburgh, PA 15236
CODEN
NCEJD5
Publication Date
20130301
Document Type
Journal Article
Email Address
MLowe@cdc.gov
Fiscal Year
2013
NTIS Accession No.
NTIS Price
Identifying No.
B20130718
Issue of Publication
2
ISSN
0736-2501
NIOSH Division
OMSHR
Priority Area
Mining
Source Name
Noise Control Engineering Journal
State
PA
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