Vibrating Screen
The vibrating screen is a high-precision fine powder screening machine characterized by low noise, high efficiency, and quick screen changes in 3-5 minutes. It features a fully enclosed structure and is suitable for screening and filtering materials such as granules, powders, and viscous liquids. The vibrating screen uses a vertical motor as the vibrating source. Eccentric weights are installed at the upper and lower ends of the motor, converting the motor's rotational motion into three-dimensional motion in horizontal, vertical, and inclined directions. This motion is then transmitted to the screen surface. By adjusting the phase angles at the upper and lower ends, the movement trajectory of the material on the screen surface can be altered.
Working principle
Three-dimensional vibrating screen, powered by a vertical motor as the vibrating source. The motor is equipped with eccentric weights at both ends, converting the motor's rotational motion into three-dimensional motion—horizontal, vertical, and inclined—which is then transmitted to the screen surface. This causes the material on the screen to move in an outward spiral trajectory, hence the series is referred to as a vibrating screen. The rotary vibrating screen offers advantages such as a longer material movement trajectory and higher screen surface utilization. By adjusting the phase angle of the upper and lower end weights, the material's movement trajectory on the screen surface can be altered, enabling precise screening and probabilistic screening of materials.
After the rotary vibrating screen is started, its power unit—the vibrating motor—generates a composite inertial force due to the high-speed rotation of eccentric weights at different phases at the upper and lower ends. This inertial force forces the screen machine's vibrating body to perform a compound rotational motion. Under the influence of the vibrating force, the screen frame continuously performs reciprocating motion, thereby driving the screen surface to vibrate periodically. This causes the material on the screen surface to move in a directed, jumping manner along with the screen box. During this process, material smaller than the screen aperture size passes through the screen holes to the lower layer, becoming the undersize material. Material larger than the screen aperture size is discharged through the discharge port after continuous jumping motion, completing the screening process. The motion trajectory of the vibrating body of the rotary vibrating screen is a complex three-dimensional curve in space. The projection of this curve on the horizontal plane is circular, and the projections on the two vertical planes are two identical ellipses. In practical applications, by adjusting the relative phase of the eccentric blocks at the upper and lower ends of the vibrating motor, the motion trajectory of the material on the screen surface can be altered to achieve different screening objectives.
Product Features
1. Suitable for separating materials with particle sizes ranging from 10 to 200 microns, achieving a screening fineness of up to 800 mesh.
2. Can be configured with 1 to 5 layers of screens with different mesh sizes according to material screening requirements.
3. The discharge port features a circular design with adjustable positioning, facilitating production.
4. Modular structure allows for quick assembly, disassembly, and cleaning.
5. Enables simple separation of materials with special properties without altering their characteristics, suitable for new materials.
6. Equipped with elastic balls or ultrasonic screen cleaning devices to effectively prevent screen clogging or blockage, extending the service life of the screens.
7. Operates at a low and stable temperature, preventing localized temperature increases, enabling continuous operation.
8. No special foundation treatment required, with a small footprint.
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