Flip-flow screens, also known as flip flop or elastic mesh screens, are machines designed to efficiently screen sticky, wet, and other difficult materials. Flip-flow screens are used in a number of industries to separate everything from aggregate and minerals to inhomogeneous recyclables, construction waste, and biomass.
Vibrating flip-flow screens are increasingly employed in materials screening and preparation applications. This is due in large part to their high efficiency. In principle, a flip-flow screen is a subclass of other high frequency vibratory screens.
Flip-flow screens work through the combination of a double vibration principle and a flexible polyurethane-type screen media. The dual-vibratory forces work to apply linear acceleration to the materials traveling across the screen. Vibrations are simultaneously applied to the elastic screen, which rapidly stretches and relaxes. The stretching and relaxing of the screen transfers energy to the material, causing it to “jump” or “pop”. This secondary vibration, in turn, enhances the separation of materials.
Flip flow screen or flip flop screen is a type of PU screening media suited to efficiently screen dry, sticky, wet and other difficult materials. The large open area promotes the flow of materials while preventing blinding and clogging of the screen surface. Red Star can offer custom-made flip flow screen with different options of hardness, thickness, aperture opening size, shape and layout, no matter whether it is deployed in dry screening or wet screening applications.
The screen of the relaxation screen is made of telescopic polyurethane cool rubber material.When working,the screen is alternately narrowed and relaxed,so that the material produces forward bouncing motion,which can avoid the material sticking to the screen and blocking the screen hole.At the same time,due to the use of flexible sieve plate so that the projectile acceleration to reach the acceleration of gravity 30-50 times,the maximum amplitude of the sieve plate can reach 40mm,so the screen is not only not easy to plug,but also improve the screening eficiency of large processing capacity, small dynamic load,small power,low noise.
Compared with metal screen and rubber screen, the advantages of polyurethane mesh:
1. Polyurethane mesh has high wear resistance, and its service life is 3-5 times that of metal screen and more than 5 times that of rubber screen. Can reduce maintenance volume and production loss.
2. Polyurethane mesh is resistant to oil, water and corrosion. It can be applied to all kinds of mining conditions.
3. The friction coefficient of polyurethane screen and material is low, the screen is designed for conical hole, no adhesion, no blocking material, high screening efficiency.
4. Polyurethane mesh has high elasticity, can produce secondary vibration, improve screening efficiency.
5. Polyurethane screen has good vibration absorption and low noise. Can reduce the noise interference of the working environment to the workers.
6. Polyurethane screen light weight, can reduce the screen machine screen machine load, prolong the life of the screen machine.
