Innovative Approaches to Noise Reduction in Metallurgy

Butorina, I. V.; Butorina, M. V.; Kuklin, D. A.; Shashurin, A. E.

doi:10.21608/tims.2022.120587.1002

Innovative Approaches to Noise Reduction in Metallurgy

Document Type : Review Articles

Authors

¹ Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia

² Environment and Industrial Safety Department., Baltic state technical university “VOENMEH”, Saint-Petersburg, Russia

³ Baltic state technical university “VOENMEH”, St. Petersburg, Russia

10.21608/tims.2022.120587.1002

Abstract

Ferrous metallurgy takes a leading role in Russia and it is a rapidly growing branch in Egypt. The occupational morbidity, including noise-induced diseases, of ferrous metallurgy workers is about one third of the total occupational morbidity. The noise levels at the workplaces of metallurgical workers exceed the limit values by 4-26 dB(A). The limit levels in the residential territory situated in the vicinity of metallurgical enterprises are also exceeded. In Russia to reduce the impact of negative factors on the population and workers of metallurgical enterprises, the best available technologies are applied. They help to reduce internal and external noise by 3-25 dB(A). In Russia, the main approach to reduce noise in the vicinity of the metallurgical enterprise is to establish a sanitary protective zone, i.e. an area where it is prohibited to locate noise sensitive objects. The size of such a zone is evaluated using noise mapping and can be decreased using noise protection measures in source and on the path of sound propagation. Such, to reduce internal noise caused by flame heating furnace it is recommended to shift to oxygen combustion technology and use modern burners. In addition, measures on sound absorption with modern types of lining were elaborated. For reduction of noise of rolling shops, a special vibration damping measures and pipe silencers were proposed. Reduction of noise on the way of its propagation is provided with technological acoustic barriers.

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