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A dual sprocket chain as a noise control for a continuous mining machine.

Authors
Kovalchik-PG; Smith-AK; Matetic-RJ; Alcorn-LA
Source
NOISE-CON 2007: Proceedings of the 2007 National Conference on Noise Control Engineering, Reno, Nevada, October 22-24, 2007. Burroughs C; Hambric S; Conlon S; Maling G; eds., Ames, IA: Institute of Noise Control Engineering of the USA, 2008 Feb; 3:1617-1625
Link
NIOSHTIC No.
20032794
Abstract
Over-exposure to noise remains a widespread, serious health hazard in the U.S. mining industries despite 25 years of regulation. Most other categories of illnesses and injuries associated with mining have improved, with the exception of hearing loss. Mine Safety and Health Administration (MSHA) coal noise sample data collected from 2000 to 2002 show that 65% of the equipment whose operators exceeded 100% noise dosage is comprised of seven different types of machines. The continuous mining machine is first among all the equipment with 35% of the noise overexposures. The National Institute for Occupational Safety and Health (NIOSH) is conducting research to reduce excessive exposure for operators of continuous mining machines and preventing additional cases of Noise Induced Hearing Loss (NIHL) by developing low-cost retrofit noise controls for mining equipment. This paper describes a noise control for reducing the noise overexposures of continuous mining machine operators. Underground results show a 26.4% and 27.4% noise exposure reduction for the continuous mining machine operator. This research is providing the mining community with an additional noise control to be utilized on continuous mining machines, therefore reducing operator noise overexposure. Utilizing this newly developed noise control, along with previously proven controls for the continuous mining machine chain conveyor, will provide operators of these machines an opportunity to be within the MSHA-Permissible Exposure Limit (MSHA-PEL).
Keywords
Mining-industry; Noise-exposure; Noise-induced-hearing-loss; Hearing-loss; Hearing-impairment; Hearing-disorders; Hearing-conservation; Coal-workers; Coal-miners; Coal-mining; Mining-equipment; Underground-mining; Underground-miners; Miners; Mine-workers; Engineering-controls; Control-technology
Contact
NIOSH, Pittsburgh Research Laboratory, 626 Cochrans Mill Road Pittsburgh, PA 15236
Publication Date
20080219
Document Type
Conference/Symposia Proceedings
Editors
Burroughs-C; Hambric-S; Conlon-S; Maling-G
Fiscal Year
2008
NTIS Accession No.
NTIS Price
ISBN No.
9781604238525
NIOSH Division
PRL
Source Name
NOISE-CON 2007: Proceedings of the 2007 National Conference on Noise Control Engineering, Reno, Nevada, October 22-24, 2007
State
PA; NV
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