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Mining Publication: Noise Source Identification on a Horizontal Vibrating Screen

Original creation date: July 2009

Image of publication Noise Source Identification on a Horizontal Vibrating Screen

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.

Authors: HE Camargo, PA Ravetta, RA Burdisso, DS Yantek

Peer Reviewed Journal Article - July 2009

NIOSHTIC2 Number: 20035794

Min Eng 2009 Jul; 61(7):47-51