Flip-flow screens, also known as Flip-Flop screeners, are a screening equipment suitable for viscous and humid materials, which can provide efficient screening solutions for viscous and difficult to screen materials. Applications include wet recycled materials as well as high moisture and viscous ash, mineral and clay-based materials, or industries such as coal preparation plants, coal chemicals, fertilizer plants, construction aggregates, and non-ferrous metals. The size of the material processed is usually between 0 and 100 mm.
Flip-Flow screening machines
Address: Middle of Xinchang North Line, Xinxiang City, Henan Province, China
WORKING PRINCIPLE
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The flip flow screen, also known as the crank and link flip flop screen, works as follows:
1. Structure basis:
Flip flow screen is mainly composed of two screen frames, namely screen frame I and screen frame II, screen frame II into the screen frame I, screen frame II is supported on the frame with vibration isolation spring. There is a hanging device between the two, the screen frame I parallel hanging on the screen frame II, the hanging device can also be used as a guide, so that the screen frame I, II can be relatively parallel movement. Each screen frame consists of two side plates connected by crossbeams, and the two ends of the polyurethane screen plate are respectively fixed to the crossbeams of the screen frame I and II.
2. Power transmission:
The motor drives the eccentric shaft through the pulley to rotate, and the eccentric shaft pushes and pulls the screen frame through the connecting rod. Since the quality of the two screen frames is approximately equal, the screen frame II pushes and pulls the screen frame I at the same time, the screen frame I also pushes and pulls the screen frame II.
Screen frame motion: Screen frame I and screen frame II will produce opposite and opposite alternating motion, the relative amplitude is positive or negative 12mm, the absolute amplitude of each screen frame is 6mm. For example, when screen frame II pushes screen frame I, screen frame I moves forward 6mm, screen frame II moves backward 6mm; When the screen frame II pulls the screen frame I, the screen frame I moves back 6mm, and the screen frame II moves forward 6mm.
3. Screen plate action:
The beam mounted on the screen frame drives the flexible screen plate to alternately tighten and relax.
Material screening: the tension and relaxation of the screen plate make the material on the screen surface "spring - fall - spring" cycle process, so as to achieve the screening of the material, so that the material that meets the size of the sieve hole falls through the sieve hole, and the material that does not meet the screen surface continues to be screened, in order to achieve the purpose of separating the different particle size of the material. The flip flow screen usually operates at a frequency of around 500-600r/min.
FEATURES
1. The screening effect is good:
Strong ability to deal with difficult screening materials: it can transmit acceleration of up to 50g to the material, which can effectively loose, stratify and sift fine, viscous and wet materials with large viscosity and high moisture, solving the problem that the ordinary vibrating screen is difficult to deal with such materials.
2. The screen is not easy to plug:
The screen surface is relaxed, and the polyurethane screen surface expands and contracts continuously at a high frequency, so that the material is not easy to plug the screen and ensure the smooth screening.
3. High screening efficiency:
Fast feed end material speed, thin material layer, a large number of materials through the screen; The low inclination Angle of the screen surface at the discharge end and the slow material speed can make the remaining material under the screen fully penetrate the screen, and the overall screening efficiency is high.
4. Reliable equipment performance
Less rotating parts: high operational reliability, less daily maintenance workload, and high equipment utilization.
5. Good performance of shaker:
linear motion box shaker has high reliability and easy maintenance.
The amplitude of the screen frame can be adjusted according to the different parameters of the screening material to adapt to different screening needs.
6. Long service life
Long life of the screen plate: polyurethane screen plate can withstand high vibration strength and frequent curvature, with good wear resistance, good elasticity, high elongation at break, bending resistance and other characteristics, long service life.
