Analysis of noise reduction measures in a noise workshop handover control room

• Published in: Zhonghua laodong weisheng zhiyebing zazhi Vol. 41; no. 5; p. 379
• Main Authors: Dong, R F, Wu, Q D, Chai, D L, Xue, X M, Zhan, J M
• Format: Journal Article
• Language: Chinese
• Published: China 20.05.2023
• Subjects: Sound insulation; Noise, occupational; Technical renovation; Control room; Noise reduction effect; Workshop; Sound absorption
• ISSN: 1001-9391
• DOI: 10.3760/cma.j.cn121094-20220617-00328

To explore the sound insulation, sound absorption and other noise reduction transformation methods in a noise workshop handover control room. In December 2021, through the occupational health investigation and on-site testing of the handover control room of a noise workshop, the causes of excessive noise were analyzed, and the transformation design scheme to reduce noise was proposed and the effect was analyzed. Before the transformation, the peak frequency band noise intensity of the noise workshop handover control room was 112.8 dB (A), and the peak frequency was 1000 Hz. After noise reduction, the theoretical calculated control value was 61.0 dB (A), and the measured noise intensity was 59.8 dB (A) . The noise intensity of the handover control room is reduced after noise reduction, which is in line with the contact limit requirements of the control room in GBZ 1-2010 "Hygienic Standards for the Design of Industrial Enterprises", and has reference significance for noise control engineering.