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Mining Publication: Application of a Microphone Phased Array to Identify Noise Sources on a Horizontal Vibrating Screen
Keywords: Noise Noise and vibration control Sound level
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: July 2008
Authors: DS Yantek, HE Camargo, RJ Matetic
Conference Paper - July 2008
Download PDF Document (2.34 MB)
NIOSHTIC2 Number: 20034242
NOISE-CON 2008: Proceedings of the 2008 National Conference on Noise Control Engineering, Dearborn, Michigan, July 28-31, 2008. Burroughs C; Lim T; Kim J; Maling G; eds., Indianapolis, IN: Institute of Noise Control Engineering of the USA, 2008; :1-15
In coal preparation plants, workers are often exposed to sound levels exceeding 90 dB(A). Vibrating screens are viewed as a significant contributor to preparation plant noise. Reducing the sound levels generated by vibrating screens could reduce the noise exposures of preparation plant employees. The National Institute for Occupational Safety and Health (NIOSH) measured the sound power level generated by a horizontal vibrating screen with the screen either directly on the floor or on rubber isolation pads. The sound power level was 100.6 dB(A) with the screen directly on the floor. With the screen placed on isolation pads, the sound power level was 100.6 dB(A) without the belt guard rattling and 108.3 dB(A) with the belt guard rattling. The 160 Hz to 800 Hz frequency range was dominant when the belt guard was not rattling whereas the 1 to 10 kHz frequency range was most significant when the belt guard was rattling. A microphone phased array was used to examine noise sources on the screen. The belt guard, eccentric mechanisms, and steel coil springs were found to be significant noise sources. This paper provides detailed information on the findings of the research.
Image of publication Application of a Microphone Phased Array to Identify Noise Sources on a Horizontal Vibrating ScreenConference Paper - July 2008
Download PDF Document (2.34 MB)
NIOSHTIC2 Number: 20034242
NOISE-CON 2008: Proceedings of the 2008 National Conference on Noise Control Engineering, Dearborn, Michigan, July 28-31, 2008. Burroughs C; Lim T; Kim J; Maling G; eds., Indianapolis, IN: Institute of Noise Control Engineering of the USA, 2008; :1-15
See Also
Analysis of a Mechanism Suspension to Reduce Noise from Horizontal Vibrating Screens
Determination of Sound Exposures (DOSES): Software Manual and Implementation Guide
Less Sound Underground: Reducing Roof Bolting Machine Drilling Noise
Mining Haul Truck Cab Noise: An Evaluation of Three Acoustical Environments
A Noise Control for A Roof Bolting Machine: Collapsible Drill Steel Enclosure
Noise Controls for Vibrating Screen Mechanisms
Practical Application of a Partial Cab to Reduce the A-Weighted Sound Level at the Operator's Station on Surface Drill Rigs
Results of Noise Measurements from Underground Testing of a Roof Bolting Machine Duty Cycle
Technology News 536 - NIOSH Develops New Software to Analyze and Reduce Noise Exposure
Water Well Safety Bits: Health And Safety Information For The Water Well Industry
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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