For example, the noise generated by air compressor, blower and boiler exhaust venting in chemical plants is the airflow noise generated by air vibration. The noise produced by ball mills, shredders and looms is due to the mechanical vibration or friction impact of solid parts. Classification of industrial noise 1. Mechanical noise: noise generated by mechanical impact, friction, solid vibration and rotation, such as noise generated when textile machines, ball mills, chainsaws, machine tools, stone breakers, etc. are started. 2. Aerodynamic noise: This is noise generated by air vibration, such as noise generated by fans, air compressors, ejectors, alarms, boiler exhaust venting, etc. 3. Electromagnetic noise: noise generated by the interaction of alternating forces in the motor. Such as generators, transformers, etc.

For example, if you hear these voices at home, you can call this number to report it.

1, industrial noise acceptance department: 12369 As the name implies, industrial noise is the noise generated in industrial production, and it is the acoustic energy radiated by production equipment or auxiliary equipment in the industrial production process. It not only directly harms workers, but also interferes with the living environment of surrounding residents. In general, the noise level of the workshop reaches 75 ~ 105 dB, some are below 75dB, and a few are as high as110 db.

2. Road traffic noise acceptance department: 880 19 194 Traffic noise is mainly divided into noise generated by motor vehicles, including railway traffic noise and aircraft noise. Among them, motor vehicle engine noise, wheel-road friction noise, air flow noise generated by body driving air with adjusted driving volume and whistle sound are all aspects of traffic noise. At present, aircraft noise has become one of the pollution sources that affect the urban environment; However, the impact of railway transportation noise on the environment is generally less than that of road traffic noise.

3. Social noise acceptance department: 1 10 Social noise is common in urban life, mainly reflected in the noise generated by business, entertainment, sports, processions, celebrations, publicity and other activities, as well as the noise generated by typewriters, household appliances and other small machinery, as well as the noise generated by repairing cars, making furniture and setting off firecrackers in residential areas. For people whose normal lives are affected by social noise, you can call 1 10 to handle complaints.

4. Acceptance department of construction noise: 963 10 Construction noise refers to the construction of public facilities such as underground railways, highways and bridges in cities, the laying of underground pipelines and cables, and the construction sites engaged in industrial and civil buildings. A large number of power machines with different performances are used, which makes the originally quiet environment become a place with serious noise pollution. The telephone number of the department that can complain about this noise is 963 10.