PVC, PET and PC sinking materials Sink-Float separation tank

Functions of Sink-Float Separation Tanks

1. Rinse

Sink-float tanks remove surface dirt and contaminants from plastic materials submerged in water, providing cleaner material for downstream processing.

2. Label separation

Light contaminants such as labels and films are separated by water flow and density differences. These materials float to the surface, while heavier plastics sink.

3. Removing mud and sand

Heavier contaminants such as sand and mud are removed by sedimentation and the action of bottom snails.

main features

• Suitable for heavier plastics: Specially designed for plastics with a density greater than water, including PET, PVC and PS.
• Friction Cleaning with bottom auger: Equipped with a screw at the bottom of the tank, it effectively cleans plastics through friction while removing sediment.

functionality

1. filling: Shredded plastic enters the tank via an inlet.
2. water flush: Water is added to rinse the plastics and loosen loose dirt.
3. Density-based separation: Lighter contaminants such as labels float, while heavier plastics settle to the bottom.
4. Soil auger cleaning: A rotating screw at the bottom of the tank uses friction to clean the deposited plastics and directs heavy contaminants such as sand to the outlet.
5. Outlet: Cleaned plastics leave the tank through a designated outlet and are ready for the next recycling stage.

Advantages

• Improved recycling quality: By removing contaminants such as labels, dirt and sediment, sink-float tanks increase the purity of recycled plastics and ensure better end products.
• Efficient multifunctionality: The tank washes, separates and removes sediment simultaneously, saving time and improving operating efficiency.
• Targeted design: Specially developed for denser plastics, the tank offers effective separation with high reliability.

Conclusion

Sink-float separation tanks are essential for recycling processes that handle denser plastics. Their ability to rinse, separate and clean in one unit not only improves material quality, but also increases the overall efficiency of the process. By incorporating targeted designs and possible upgrades such as flotation systems and water recycling, these tanks can further optimize plastics recycling results. Companies seeking higher recycling standards and sustainability will find sink-float tanks a valuable investment.