The industrial boundary environmental noise refers to the interference sounds that are generated during industrial production activities using fixed equipment, etc., and are measured and controlled at the factory boundary, affecting the surrounding living environment.
Factory Boundary Noise Impact:
1. Affecting the normal daily routines of residents in the surrounding area.
2. Long-term exposure to noise within the factory boundaries can damage the auditory system and lead to occupational tinnitus among employees.
Industrial Zone Boundary Noise Control Measures:
1. Construction of workshop and factory buildings
To minimize the impact on the basic layout of the production workshop, sound-absorbing and sound-insulating layers should be installed in machine equipment areas and workshop buildings, along with sound-insulating windows and doors. The workshop should be divided into zones with precision equipment that requires vibration resistance. This will reduce the noise and vibration's influence on the surrounding environment.
2. Factory Boundary Soundproofing Barrier
In general, sound barriers can reduce high-frequency noise by 10-15 dB. Additional sandwich panel sound barriers can be installed at the factory boundary area, with their height determined based on the distance between the sound source and the receiving point. Doubling the height can increase the noise reduction by 6 dB. Additionally, it is recommended to place the sound barriers close to the sound source or the receiving point.
3. Basic Excavation
The foundation excavation should be equipped with vibration isolation measures. Install a vibration isolation trench around the foundation, typically 1 meter deep and 0.4 meters wide. Add a shock-absorbing layer above the trench and cover it with rubber shock-absorbing pads. Perform other necessary treatments on the rubber pads, and finally, level the shock-absorbing trench with steel plates.
4. Equipment Installation of Soundproof Enclosures
Installing soundproof enclosures on major noise sources for machinery can enhance the effectiveness of other noise control measures and improve the overall sound insulation and noise reduction performance. Additionally, the enclosures must meet requirements for ventilation and heat dissipation.
5. Equipment Installation
During equipment installation, anti-vibration measures are taken at the bottom, with commonly used vibration-reducing products including shock-absorbing damping pads, spring vibration dampers, rubber vibration pads, and the like.
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