A sink / float separation tank separates materials that float from those that sink. In the case of PET recycling, as PET bottles are granulated whole, a large portion of contamination we need to remove are the plastic bottle caps, which are not made from PET plastic. Instead, they are made from either polypropylene (PP) or polyethylene (PE).
How It Works
ASG’s sink float separation tank uses the density of water to accomplish separation. Water has the density of 1 g/cm3, any material that has a greater density will sink while material with lesser density will float. In the case of PET bottle recycling, when the stream of material enters the sink float separation tank filled with water, PET plastic will sink to the bottom while PP/PE bottle caps will float to the top.
Specially designed rotating drums move the floating material (the contamination) forward into a storage silo for collection. Screw conveyors operate at the bottom of the separation tank collecting the PET flakes which moves forward onto the next piece of machinery.
Ideally, we want the material to soak in the water for longer periods of time. This not only allows for more cleaning of the material, it will also ensure enough time is given all sinking PET flakes to move to the bottom of the tank. Hence, we offer a standard 4 meter separation tank with the option of extending it to 6 meters.
To ensure the durability of ASG’s water separation tank, the tank’s interior as well as the rotating drums on top are made with type 304 stainless steel that is strongly resistant to both oxidation (rust) and corrosion.
|Interior Width:||1500mm – 2000mm|
|Total Length:||4 – 6 meters|
|Interior Material:||Type 304 Stainless Steel|
|Exterior Frame:||Carbon Steel|
|Screw Conveyor Motors:||5.5KW + 3.7KW|
|Rotating Drum Motors:||.37KW + 2.2KW|
Place An Order
The general lead time for all single-piece, standard equipment orders is 30 days. For custom orders or complete washing lines, the lead time is between 60 – 90 days. The actual lead time will depend heavily on the complexity of the project as well as the amount of machinery we have in queue at the time of your order.
Contact us to discuss pricing and ordering details. Here is a brief summary of our ordering procedures.