What is the principle of swing vibrating screen

The principle of a swing vibrating screen is based on the vibration and oscillation motion generated by an eccentric shaft or vibrator. The screen is designed to have a swinging or pendulum-like motion, which facilitates efficient screening and separation of materials.

Working principle of swing vibrating screen

The key principles of operation are as follows:

1.Vibration Generation: The Swing Vibrating Screen incorporates an eccentric shaft or vibrator that generates vibrations. This eccentric motion is created by a motor, which rotates the shaft or vibrator at a high speed. The vibrations are transmitted to the screen box, causing it to oscillate in a circular or elliptical trajectory.

2.Screening Surface: The screen box of the Swing Vibrating Screen consists of one or multiple layers of screen mesh or panels. The material to be screened is fed onto the screen surface, and the vibrating motion of the screen box allows the material to move and spread evenly across the screen.

3.Particle Separation: As the material spreads across the screen surface, particles smaller than the screen openings or mesh size will pass through the screen, while larger particles will be retained on the screen surface. This separation process is achieved by the combination of the swinging motion and the size of the screen openings.

Effects of the motion

This three-dimensional movement offers several benefits for separation:

1.Stratification: Larger and heavier particles tend to stay on top due to inertia, while smaller ones get sifted through the mesh openings as they travel along the spiral path.

2.Reduced Sticking: The constant lifting and movement of particles help prevent them from sticking to the screen mesh, especially beneficial for sticky or damp materials.

3.Improved Efficiency: The spiral movement allows for better material distribution and separation compared to linear motion screens.

4.Key takeaway: The principle lies in using an unbalanced rotating weight to create a complex, three-dimensional motion for the screen surface. This motion, with its combination of circular and radial components, effectively separates particles based on size and weight.

By applying these principles, the swing vibrating screen effectively separates and classifies materials based on their particle size, ensuring efficient screening and improved product quality in various industries such as mining, chemical, pharmaceutical, food processing, and more.