The noise of the crusher is the sound caused by the irregular motion of an object. The sound is caused by the vibration of the object. The noise pollution in the form of a wave in the form of a certain medium is usually caused by human beings. We look at this problem from a physiological point of view. There is a sound that interferes with people's rest, learning and work, that is, the sound that is not needed, collectively known as noise. When noise causes adverse effects on people and the surrounding environment, noise pollution is formed. Since the industrial revolution, the creation and use of various kinds of machinery and equipment have brought prosperity and progress to human beings, but also produce more and more strong noise.

Noise reduction scheme:

1, add rubber, machine and lubricants to reduce noise.

2, the feeding port is expanded. (the upper part of the feeding port should be square).

3, in the transmission of control, in the overall layout of the overall layout of the rational design and use of the barrier to prevent noise transmission, or the use of natural forms such as hills, slopes, trees, grass or not afraid of noisy tall buildings or structures, using the directional characteristics of the sound source to control noise, such as high pressure boiler exhaust, blast blast blast blast blast The exhaust port of oxygen generator is directed toward the open field or the sky to reduce the environmental impact.

4. Protection of the recipients: personal protection for workers, such as earplug and earmuff helmet, and other anti noise products, take workers' rotation operation, shorten the working time of workers into the high noise environment, and take measures such as noise reduction, sound absorption, sound insulation, vibration isolation, vibration damping and so on.

5, reduce sound source noise: transform production technology and select low noise equipment to improve the machining and assembly precision of mine, in order to reduce the noise produced by mechanical vibration and friction to high pressure and high speed air flow to reduce pressure difference and flow rate, or to change the shape of airflow nozzle.