Measures to Reduce The Noise of Vibrating Feeder

Vibrating feeder is a kind feeding equipment which is widely used and has experienced the development of the electromagnetic vibration, motor vibration, mechanical vibration. It can be used in metallurgy, coal, electric power, chemical industry, building materials, light industry and food and other industries. The vibrate feeder price varies along with the different type.
Complementing with other equipment, Vibrating feeder is for feeding, mixing, quantitative packaging and process automation operation. In the metallurgical mine, Vibrating feeder is mainly used in chute ore drawing, loading and ore dressing crushing feeding operations; In packaging industry, it is mainly used for quantitative packing scale feeding mechanism and quantitative packaging system; In cement production, it feeds material for cement concrete mixing station; In the chemical industry, it is mainly used for the production of chemical fertilizers.
The noise of the vibrating feeder are mostly in more than 70dB. the sources of noise are vibration motor rotor imbalance, the relative movement of main body between the relative motion, elastic vibration of feeder beam and side plates. the impact of materials on the floor of the feeder and the vibration of the spiral spring, etc. The vibrating feeder noise spectrum analysis showed that when the vibration frequency was close to the natural frequency of a certain order natural frequency, the strong vibration and noise of the elastic body would be caused. The noise reduction measures proposed in the previous studies mainly include that using small size and high precision bearings, which can reduce the impact of the internal and external circles and the rolling elements; using appropriate stiffness for feeding trough side plates and beams to reduce the elastic vibration caused by acoustic radiation. choosing the rubber and other non-metallic materials such as rubber compound spring and flexible couplings to reduce the direct impact of steel parts, and the sound absorption method can also be used to reduce the noise.
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