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Mining Publication: Evaluation of Stiffeners for Reducing Noise from Horizontal Vibrating Screens
Keywords: Noise damping Processing plants Sizing screens Sound level
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: April 2010
Authors: DS Yantek, S Catlin
Conference Paper - April 2010
Download PDF Document (0.56 MB)
NIOSHTIC2 Number: 20036771
NOISE-CON 2010: Proceedings of the 2010 National Conference on Noise Control Engineering and 159th Meeting of the Acoustical Society of America, Baltimore, Maryland, April 19-21, 2010. Burroughs CB; Maling G; eds., Indianapolis, IN: Institute of Noise Control Engineering of the USA, Paper No. NC 10-147, 2010; :1-14
Sound levels around vibrating screens in coal preparation plants often exceed 90 dB(A). The National Institute for Occupational Safety and Health (NIOSH) is developing noise controls to reduce noise generated by horizontal vibrating screens. NIOSH researchers used finite element analysis (FEA) and a NIOSH-written program to estimate the sound power level reduction resulting from adding rib stiffeners to key locations on the sides of a screen. The researchers evaluated adding rib stiffeners made from steel channel with two different cross-sections (C and T) and the effects of orienting the stiffeners horizontally and vertically. In addition, the researchers investigated the effects of increasing the modal damping from 0.002 to 0.010. The results indicate that for a broadband input, adding stiffeners had little impact on the estimated sound power level, but increasing the modal damping reduced the predicted A-weighted sound power level by 7.8 dB.
Image of publication Evaluation of Stiffeners for Reducing Noise from Horizontal Vibrating ScreensConference Paper - April 2010
Download PDF Document (0.56 MB)
NIOSHTIC2 Number: 20036771
NOISE-CON 2010: Proceedings of the 2010 National Conference on Noise Control Engineering and 159th Meeting of the Acoustical Society of America, Baltimore, Maryland, April 19-21, 2010. Burroughs CB; Maling G; eds., Indianapolis, IN: Institute of Noise Control Engineering of the USA, Paper No. NC 10-147, 2010; :1-14
See Also
Analysis of a Mechanism Suspension to Reduce Noise from Horizontal Vibrating Screens
Assessment of Engineering Noise Controls at a Talc Processing Plant
Determination of Sound Exposures (DOSES): Software Manual and Implementation Guide
Noise and Vibration Reduction of a Vibrating Screen
A noise control package for vibrating screens
Noise Controls for Vibrating Screen Mechanisms
Sound Restoration Hearing Protection: Genesis of a Standard Test Method
Structural Vibration as a Noise Source on Vibrating Screens
Technology News 536 - NIOSH Develops New Software to Analyze and Reduce Noise Exposure
What Does a Hearing Loss Sound Like?
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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