Process and apparatus for collecting waste plastics as separated

摘要

A process for collecting waste plastics as separated comprises the steps of presorting (1) out waste plastics from separated municipal refuse, crushing (2) the waste plastics, reducing the volume of expanded polystyrene included in the waste plastics by heating (3) the waste plastics at a predetermined temperature, finely dividing the waste plastics (4), washing the waste plastics to remove salt (5), etc. therefrom, separating the finely divided waste plastics in a liquid utilizing the difference between the plastics in specific gravity (6) and collecting the separated fractions, and drying (7) the useful one of the separated fractions.