banana vibrating screen with three inclined surfaces

Banana vibrating screen adopts the principle of equal thickness screening, through the design of screen surface with different inclination angle of multiple sections, to realize the uniform distribution of the thickness of the material on the screen surface, so as to improve the screening efficiency and precision, which is widely used in the industries of coal, metal mining, building materials and so on.

Features of banana vibrating screen:

1. Multi-section inclination structure: the screen surface is usually divided into five or six sections of decreasing inclination structure, from the feed end of the large inclination gradually transitioned to the discharge end of the small inclination, to achieve the principle of equal-thickness screening, optimize the material flow rate and stratification process.
2. Complex elliptical vibration trajectory: different sections of the vibration mode is different: high-speed elliptical movement at the feed end, the middle section tends to circular vibration, the end of the reverse elliptical trajectory, forming a “fast-steady-slow” dynamic screening effect.
3. Modular vibrator design: the use of VB series box-type vibration exciter, high excitation force, high reliability, easy to maintain the structure. Equipped with high quality SKF or FAG bearings to ensure long-term stable operation.
4. Good sealing and structural optimization: labyrinth + mechanical double sealing design, dustproof and waterproof; feeding hopper is specially designed to utilize the screen surface area and improve the screening efficiency.

Core advantages of banana vibrating screen:

1. Large single machine capacity: compared with the traditional linear screen or circular vibrating screen, banana screen can take on a larger screening task with a more compact structure, reducing the equipment layout space and cost.
2. Higher screening efficiency: multi-segment vibration track effectively control the speed of material movement and residence time, making the screening process more adequate, suitable for fine grading of fine-grained materials.
3. Save the number of system equipment: can replace more than one side-by-side use of the traditional screening machine, reduce the number of equipment, reduce operation and maintenance costs.
4. Low noise, low vibration transmission: the screen body adopts optimized structural design, with rubber spring support and flexible coupling, effectively reducing the noise and vibration of the equipment.
5. Easy to adjust and maintain: flexible adjustment of amplitude by adding or subtracting the counterweight block, to adapt to different material properties and process requirements; exciter structure modularization, disassembly and installation is more convenient.

The working principle of banana vibrating screen:

Based on the principle of “equal thickness screening”, its core idea is to make the material on the screen surface in an approximate equal thickness distribution state through the multi-section inclined screen surface. This structure can effectively slow down the material clogging and pressure accumulation, and improve the grading efficiency.

When the motor is started, the exciter drives the whole screen box to produce compound elliptical vibration, and the material on the inclined screen surface is affected by the excitation force to produce continuous jumping forward. On different inclined passages, the speed and acceleration of the material will change accordingly, from fast conveying to slow staying, so as to complete the efficient screening process. The reverse elliptical trajectory at the end helps the fine-grained materials to penetrate the screen, improving the purity and uniformity of the product.

Application areas of banana vibrating screen:

1. Coal industry: used for screening, dewatering, de-mediaizing, desliming and other aspects of raw coal, medium coal, final coal, replacing multiple conventional screens in large coal mine washing plants.
2. Metal mines: screening iron ore, non-ferrous metal ores and other raw ores and grinding products of wet and dry grading process.
3. Building materials and sand and gravel aggregate industry: used for mechanism sand, crushed stone, stone powder and other aggregates of finished product screening and particle size classification, improve the quality of aggregate grade.
4. Chemical and metallurgical industry: pretreatment and grading of various medium hardness or fine-grained chemical raw materials.
5. Electric power industry: fuel coal screening system as a high-efficiency screening core components.

If you need to customize the parameters according to the nature of the material, screening requirements, welcome to contact for technical selection support.