As an efficient and flexible screening equipment, a double-layer vibrating screen plays an important role in industrial production. By rationally selecting and using a double-layer vibrating screen, production efficiency and product quality can be improved, and production costs and energy consumption can be reduced.
Double-layer vibrating screen is a commonly used screening equipment. It consists of two layers of screens, upper and lower. The material is screened by vibration force to achieve the purpose of separating particles of different sizes and shapes.
Structural features of double-layer vibrating screen
1. Screen box: The screen box of the double-layer vibrating screen adopts a two-layer structure, usually welded by steel plates, which can better meet the screening needs of materials of different particle sizes.
2. Vibrator: The vibrator is a device that provides excitation force. It is installed at the bottom of the double-layer vibrating screen. It usually uses a motor to drive the eccentric block to rotate, thereby generating vibration.
3. Screen: The upper and lower layers of the screen are connected by elastic elements. Each layer of the screen has its own aperture size, which is used to screen materials of different particle sizes. The upper screen usually has a larger aperture for coarse screening; the lower screen has a smaller aperture for fine screening.
4. Support structure: used to support and fix the screen to ensure that the screen remains stable during vibration.
5. Excitation spring: installed between the vibrator and the screen box, used to absorb vibration and shock absorption, and protect the equipment from damage.
Working principle of double-layer vibrating screen
The working principle of the double-layer vibrating screen is to use the exciting force generated by the vibration motor to vibrate the screen box and the screen. After the material enters the screen box evenly through the feeding device, it produces a cyclotron motion under the action of the vibration force. In this process, the larger particles of the material are blocked on the upper screen due to inertia and cannot pass through the screen holes; while the smaller particles of the material pass through the screen holes of the upper screen and enter the lower screen for further screening. Finally, materials of different particle sizes are discharged from different discharge ports to achieve material grading and separation.
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Baichy Heavy Industry has grown into a high-tech mining equipment comprehensive enterprise, integrating R&D, manufacturing, sales, and after-sales service, Passing ISO9001:2015 quality management system certifications. The main products are mobile jaw crushing plants, construction waste crushing plants, PE jaw crushers, VSI sand-making machines, Symons cone crushers, single-cylinder hydraulic cone crushers, PCX high-fine crushers, grinding mills, ball mills, and full sets of beneficiation equipment with an excellent level.
