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Noise and vibration reduction of a vibrating screen D.S. Yantek, P. Jurovcik and E.R. Bauer Mechanical Engineer, general engineer and mining engineer, respectively, NIOSH, Pittsburgh, Pennsylvania . Abstract . Workers in coalpreparation plants, where vibrating screens are significant noise sources, are often exposed
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Noise and Vibration Reduction of a Vibrating Screen CDC. Workers in coalpreparation plants, where vibrating screens are significant noise company and a vibratingscreen manufacturer conducted a cooperative study of Health Standards for Occupational Noise Exposure, Final Rule, Depart.
Laboratory testing demonstrates that this noise control suite reduces the Aweighted sound power level of the vibrating screen by 6 dB. To provide a comparison to laboratory results and prove durability, field testing of two noise controls was performed on a vibrating screen in a working coal preparation plant.
The circular vibrating screen mainly comprises a sieve box, a screen mesh, a vibrator, a vibrationdamping spring device, a chassis, a suspension (or support) device and an electric motor. The circular vibrating screen structure is composed of a spring support group, a transmission device, a sieve box, a support base, a thin oil lubrication
NOISE AND VIBRATION REDUCTION OF A VIBRATING SCREEN David S. Yantek, NIOSH, Pittsburgh, PA Paul Jurovcik, NIOSH, Pittsburgh, PA Eric R. Bauer, NIOSH, Pittsburgh, PA Abstract Workers in coal preparation plants, where vibrating screens are significant noise sources, are often exposed to sound levels exceeding 90 dB(A). The National Institute
ity of prior efforts to reduce vibrating screen noise have focused on reducing material ow noise through the use of rubber screen decks. 11,12,1425, various screen deck isolation or attachment techniques. 26,27, and chute liners. 11,12,1418,28 . However, less work has been done to reduce the noise from the screen itself. The most
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