For example, the noise generated by air compressors, blowers and boiler exhaust venting in chemical plants is airflow noise due to air vibration. Ball mills, crushers and looms and other noise, is due to mechanical vibration of solid parts or friction impact of mechanical noise. Classification of industrial noise 1, mechanical noise: due to mechanical impact, friction, solid vibration and rotation of the noise, such as textile machines, ball mills, chainsaws, machine tools, stone crusher start-up sound. 2, aerodynamic noise: this is due to the air vibration of the noise, such as ventilators, air compressors, jets, whistles, boiler exhaust venting and so on the sound produced. 3, electromagnetic Noise: This is the noise produced due to the interaction of alternating forces in the motor. Such as generators, transformers and other sounds.
For example, when you hear these sounds at home, you can go to this number to report.
1, industrial production noise receiving department: 12369 industrial noise, as the name suggests, is the noise generated by industrial production, industrial production process, production equipment or auxiliary equipment radiated sound energy. Not only directly bring harm to the workers, but also interfere with the living environment of the surrounding residents. General factory workshop noise of 75 ~ 105dB, part of the 75dB below, a few noise levels as high as 110 ~ 120dB.
2, road traffic noise receiving department: 88019194 traffic noise is mainly divided into motor vehicles driving noise, but also contains the noise of railroad traffic and aircraft noise. One of the motor vehicle engine noise, wheel and road friction noise, adjusting the amount of driving volume of the car body driven air formed by airflow noise and siren, etc., are part of the traffic noise on the one hand; at present the aircraft noise has become one of the pollutants affecting the urban environment; and the noise of the railroad transportation, the general impact on the environment relative to the road noise to be a little smaller.
3, social life noise acceptance sector: 110 social noise is widespread in urban life, which is mainly reflected in the commercial, entertainment, sports, parades, celebrations, publicity and other activities generated by the noise, others such as typewriters, household appliances, and other small machinery, as well as residential repair of automobiles, making furniture and firecrackers, etc. The noise generated by the noise is also included. For social noise and thus affect the normal life of the people, you can call 110 telephone complaints to deal with.
4, construction noise receiving department: 96310 construction noise refers to the city, the construction of utilities, such as underground railways, highways, bridges, laying underground pipelines and cables, as well as engaged in industrial and civil construction of the construction site. Are a large number of different performance of the use of a variety of power machinery, so that the original relatively quiet environment has become a place of serious noise pollution. For this noise, you can complain to the department phone number is 96310.