Banana screen is widely used in coal grading, desliming, dewatering, and media removal, and can also be used for screening and processing in large-scale mining operations. Compared with traditional screens of the same specifications, banana screens have a larger processing capacity, with a processing capacity per unit area 1.5 to 2 times that of traditional screens. They are currently a cost-effective vibrating screen equipment.
Single Layer Banana Screen Working Principle
When the material enters the screening machine, the electric motor drives the exciter through the pulley, V-belt, and universal joint shaft, generating vibration force. These vibration forces are transmitted to the material through the screen box and screen surface, causing it to roll, flip, and slide on the screen surface.
Due to the shape of the sieve box resembling a banana, the material moves along the curved sieve surface and is constantly subjected to vibration force. During this process, larger particles of material quickly pass through the sieve holes, while smaller particles of material remain on the sieve surface. By selecting the appropriate sieve size, precise screening and grading of materials can be achieved.
Advantages of Single Layer Banana Screen
1. Simple and compact structure, high rigidity, high strength, balanced distribution of force, large safety factor;
2. The vibration parameters are set reasonably, avoiding the screen body at all levels of intrinsic frequency, reducing the impact of resonance;
3. The service life of the screen body is up to 10 years, and the service life of the vibrating screen exciter is more than 60,000 hours;
4. light weight, low power consumption, high vibration intensity (9-12mm), high screening efficiency ( > 95%);
5. The selection of brand screen configuration, high screening efficiency, material handling capacity;
6. Working noise level is lower than 75 dB, running smoothly;
7. The whole machine working system for S1, to ensure 24 hours of stable continuous work;
8. Banana sieve using FF frequency analyser for frequency response and dynamic analysis;
9. A full range of varieties, can fully meet the different material characteristics and processing capacity of the screening process requirements;
10. Banana sieve operation and maintenance is simple, safe to use, cost-effective, spare parts sufficient, timely and thoughtful service.
Single Layer Banana Screen VS Double Layer Banana Screen
1. Screen Box Shape: The screen box of a single-layer banana sieve is approximately the shape of a banana, with an arc-shaped design, while a single-layer horizontal vibrating screen usually uses a rectangular or square screen box.
2. Material Movement Mode: In a single-layer banana sieve, materials roll, flip, and slide on the sieve surface, while materials in a single-layer horizontal vibrating sieve mainly move back and forth in the horizontal direction through the action of vibration force.
3. Screen Structure: The screen surface of a single-layer banana sieve is usually flat and of equal thickness to accommodate the rolling and sliding motion of materials. The screen surface of a single-layer horizontal sieve is generally flat and horizontal.
4. Screening Effect: Due to the special shape of the banana sieve and the rolling motion of the material, it can better separate the material and achieve precise grading. The single-layer horizontal vibrating screen mainly screens materials horizontally through vibration force.
