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Noise source identification on a horizontal vibrating screen.

Authors
Camargo-HE; Ravetta-PA; Burdisso-RA; Yantek-DS
Source
Min Eng 2009 Jul; 61(7):47-51
NIOSHTIC No.
20035794
Abstract
In an effort to decrease noise-induced hearing loss (NIHL) in coal preparation plant employees, the National Institute for Occupational Safety and Health (NIOSH) is conducting research to identify and control dominant noise sources in vibrating screen (VS) machines. To this end, acoustic measurements of the noise radiated by a dewatering VS were conducted at the Pittsburgh Research Laboratory (PRL) using microphone phased-array technology. These measurements allowed for the identification of the screen as the dominant source in the 250 Hz 1/3-octave band. The sidewalls are the major contributors in the 315 and 400 Hz bands, whereas the eccentric mechanisms and the electric motor are the dominant sources in the 800 and 1,000 Hz bands, respectively.
Keywords
Mining-industry; Noise-exposure; Noise-induced-hearing-loss; Hearing-loss; Hearing-impairment; Hearing-disorders; Hearing-conservation; Coal-workers; Engineering-controls; Control-technology; Mineral-processing
Contact
NIOSH/PRL, 626 Cochrans Mill Road, Pittsburgh, PA 15236
CODEN
MIENAB
Publication Date
20090701
Document Type
Journal Article
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Issue of Publication
7
ISSN
0026-5187
NIOSH Division
PRL
Priority Area
Mining
Source Name
Mining Engineering
State
PA; VA
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