Vibration reduction of the vibrating screen

Vibrating screens often have abnormal sounds during operation, and the noise is extremely high. How can we effectively reduce the vibration of the vibrating screen? details as follows:

Vibrating screen Noise Source Analysis + Solution

1.Sieve plate noise

There are two kinds of noise generated by the sieve plate. One is the vibration noise generated by the vibration sieve when it is under no-load. The vibration noise depends on its own weight and its installation method. One is the noise generated when the material moves on the screen surface during loading and collides with the screen surface during the falling process.

Solution: Change the material of the sieve plate

At present, most of the vibrating screens are made of steel screen plates, which generate relatively loud noise. Therefore, a polyurethane sieve plate or a rubber sieve plate with small elastic modulus and low impact noise can be used instead of the steel sieve plate, thereby effectively reducing the high-frequency vibration of the sieve plate, buffering the impact force of the material on the sieve plate, and further reducing the noise of the vibration sieve. In addition, the vibrating screen panels and other components should be routinely inspected frequently to tighten individual loose bolt components in a timely manner.

2.Side panel noise

The side plate of the vibrating screen box is greatly vibrated at the excitation frequency. If the side plate frequency is close to the working frequency of the vibrating screen, resonance will occur, and the vibrating screen will generate a lot of noise.

Solution:: improve the side panel structure or add a constrained damping layer

Users can replace the steel gear with a flexible spoke gear with low transmission noise and low vibration, or install a restraining damping material on the side of the vibrating screen to reduce the vibration of the vibrating screen.

3.Exciter noise

If the vibrating screen is excited for a long time, the looseness of the bearing and the friction of the bearing will cause the vibrating screen to become louder.

Solution: Adjust the excitation force of the motor, select the vibrating screen bearing with good quality and lubricate it regularly.

4.Vibrating screen spring

The metal spring has large vibration and noise, does not have airtightness, has a low safety factor, and has a poor vibration-reducing effect.

Solution: replace the vibrating screen spring

Replace the metal spring of the vibrating screen with a rubber spring or composite spring with good sound insulation.

The above is how to reduce the vibration filter related analysis, if you still do not understand, please consult us!