Sound insulation: This is a passive noise control method, which reduces noise propagation by adding sound insulation structure between the noise source and the affected area. For example, sound insulation covers, sound insulation walls or sound insulation doors are installed around production equipment. These sound insulation structures usually use sound absorption materials and sound insulation boards, which can absorb and block noise fluctuations, thus reducing the impact of noise on the surrounding environment.
Sound vibration reduction: this method is mainly used to reduce the vibration and noise generated by mechanical equipment itself. Installing shock absorbers and isolation pads on mechanical equipment can effectively reduce vibration transmission and noise generation. In addition, the equipment can be technically improved to reduce the sources of friction, vibration and noise.
Sound absorption: this method reduces noise reflection and echo by using sound absorption materials, thus reducing the noise level in the environment. Sound-absorbing materials can be applied to walls, ceilings, floors, pipes and other surfaces, and can absorb noise energy and convert it into heat energy, thus reducing noise transmission.
Sound shielding: Sound shielding is to reduce the influence of noise on hearing by introducing background sound. This method is suitable for some workplaces that need to keep a relatively quiet environment, such as offices or laboratories. By using natural sound, white noise or sound with specific frequency, noise can be shielded and interference to people can be reduced.
Regular maintenance and repair: Regular maintenance and repair of mechanical equipment, shock absorbers and sound insulation structures, and regular inspection and repair of equipment can maintain the normal operation of equipment and reduce noise generation.
In addition to these methods, noise control should also be combined with the actual situation, according to the specific working environment and noise source characteristics to develop the corresponding control scheme. In addition, noise control should be combined with employee training and education to improve employees' noise awareness and urge employees to take appropriate protective measures to protect their hearing health. In a word, comprehensive use of various methods, regular maintenance of equipment and cooperation with staff training can achieve better industrial boundary noise control effect.