Post-Consumer Scrap Film Recycling System and Process

摘要

A system for processing a supply of post-consumer scrap linear low density or low density polyethylene film into near-virgin quality blown film product. The system includes tearing the supply of film in a shredder, wherein the surface area of the film is exposed, including delaminating the film. The torn supply of film is washed in a hot water bath including a surfactant. The film is agitated in the bath containing the surfactant wherein contaminants on the film are removed from the film. The washed film is ground into smaller pieces and additional washing of the ground film in a rotating friction washer occurs wherein additional contaminants are removed from the film. The ground film is then dried in a dryer and compacted in a compactor without addition of water into granulated objects of near-virgin quality blown film product.

主权项

1. A system for processing a supply of post-consumer scrap polyethylene film into near-virgin quality blown film product, comprising:
a shredder configured to tear and delaminate the supply of post-consumer scrap polyethylene film, wherein surface area of the film is exposed; a water bath configured to wet and agitate the torn and delaminated film in the water bath to remove contaminates therefrom, wherein the water bath includes a surfactant; a grinder configured to grind the wetted, delaminated film into ground film; at least one friction washer configured to wash the ground film to remove additional contaminates from the ground film;wherein at least one of the water bath or the at least one friction washer contains hot water;
at least one dryer configured to dry the ground film into flakes of film containing not more than 10% by weight of water content; and a compactor configured to process the flakes of film into granulated objects of near-virgin quality blown film product.