With the development and progress of the science and technology society, noise pollution has become one of the public hazards to harm human health. It has been paid more attention to effectively prevent and reduce noise pollution and become a livelihood problem. As the main production and research and development screening equipment base of Xinxiang, there are hundreds of vibrating screen manufacturers. Less noise is an important index to test the technical pass of each manufacturer, and how to effectively reduce the noise of the noise and the ultrasonic vibration screen of the vibration equipment is enumerated one by one.
1. the ultrasonic vibrating screen produced by a metal sieve plate or a stainless steel sieve plate may be connected by a buffer rubber or a plastic pad and a screen frame to reduce the noise produced by the impact of the metal parts.
2. rubber and plastic elements are used more frequently. In the screening of granular materials, the noise level of the rubber cooking plate is lower than that of the metal sieve plate, which is about 10 dB.
3. the noise and vibration of the rubber spring are fully considered in the design.
Although the 4. spiral spring has lower natural frequency, larger static compression and bearing capacity, temperature resistance, oil resistance and stable performance, it is easy to transfer high frequency vibration and medium frequency vibration.
5., a layer of rubber should be adhered to the spring steel wire to increase resistance.
6. in the design of the screen box, we should take into account the stiffness of the side panels, reduce the vibration with the appropriate stiffness, and reduce the medium and low frequency noise waves.
7. meet the conditions of bearing life, and use bearings with smaller size and higher rigidity as far as possible.