The PET flakes washing and sorting tank is one of the ideal equipment for a PET bottle washing plant. This machine separates PP/PE caps or labels from PET bottle flakes while cleaning to ensure the purity of the final product.
Working Principle Of Sink Float Separation Tank
The sink float separation tank utilizes water as a medium and relies on the density difference between different plastics to achieve an effective separation process. It is mainly applied to separate PET bottle flakes from PP, PE bottle caps, or labels.
When PET bottle flakes enter the plastic float sink tank, the density of PET plastic is greater than that of water, resulting in its deposition at the bottom of the tank. The PET bottle flakes are smoothly transported to the next process by a screw conveyor at the bottom of the trough. On the contrary, PP and PE float on the water surface due to their lower density, thus realizing the effective separation of these two plastics.
Features of Sink Float Plastic Separation
- The sink float separation tank is made of stainless steel.
- Internal blade thickness 6mm, both sides of the outer wall 8mm.
- The twin-screw floating chute is recommended for output greater than 2 tons, with 4 mm outer wall thickness 6 mm blades, and removable bottom height.
- The machine can be customized according to customer requirements.
Why Do You Need A Washing and Sorting Tank?
Most of the cold drink bottles are made of PET plastic, which is 100% recyclable material. PET flakes with high native content can be recycled to make new products such as filament, staple fiber, clothing, packing tape, etc. PET flakes can also be made into pellets for recycling.
The cap is made of PP or PE, so the cap needs to be detached through the sink float separation tank to get a single content of PET plastic flakes. This machine is widely used in PET bottle washing plants.
Number of Washing and Sorting Tank Installations
The number of sink float separation tanks that need to be installed in a PET flakes washing line depends on the degree of soiling of the material and the throughput. If the material is dirty or the quality of the final product is high, you can consider installing one or two more separator tanks before the plastic dewatering machine.
From the production point of view, if the output is small, usually need to install 1 or 2 units; if the output is 1 ton per hour, it is recommended to install 3 units; and for a larger output, such as 3 tons per hour, it may be necessary to install 4 sets of washing and sorting tanks.
Global Cases of Plastic Float Sink Tank
