Abstract
AbstractDairy products have become an important part of people’s daily diet, but the noise in the batching room of the dairy production enterprise is harmful to workers’ occupational health especially the hearing system. Take the batching room of a dairy production enterprise as this research object, and the sound pressure levels and frequency distribution were detected by the noise meter. The sound pressure level of the batching workbench with all the side plates was 7.5 dB higher than the occupational exposure limit under present conditions, and the sound insertion loss capacity of the existing side panel was only 4.9 dB. The sound distribution was mainly in 500 Hz to 8 kHz, which indicates that the sound belongs to medium and high frequency and broadband noise. Base on the analyzing the results of octave band sound pressure level detection and the cause of exceeding the limit, a sound insulation encasing was designed in detail to reduce the noise.KeywordsNoiseAcoustic shieldTransfer pumpDairy productionBatching
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