|From the discharge of the Turbowash the material passes through a drained auger to the loading system of the Swim-Float-Tank (13). The material is, by means of submerged augers, pressed beneath the surface of the water, which avoids the effect of the surface tension that might cause some heavy material to float and thus reducing the decanting effect. By means of this system a considerable improvement of the separation effect was obtained.
Horizontal drums with vanes, together with the water current, convey the material along the water surface. The sinking fraction PS, PET, PVC goes to the bottom and is removed by 2 bottom scraper conveyors. PE und PP pass at the end of the tank over an edge and enter into a auger (12) which discharges the material to the loading auger of the centrifuges.
|The Swim-Float-Tank (13) is of stainless steel, as are also all other components in contact with the water. The rotation of the drums can be adjusted individually the regulate the capacity of the tank.