B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 17/00 (2006.01) B29B 17/02 (2006.01)
Patent
CA 2153450
A method is provided for processing a mixture raw automobile shredder residue, and virgin and/or contaminated synthetic plastic material, e.g., raw post consumer plastic waste. By means of this method, automobile shredder residue produced by a conventional automobile shredder is formed into a first stream by being ground in a first granulating zone to a reasonable small granular size using conventional equipment. A second stream comprising virgin and/or contaminated synthetic plastics material is ground in a second granulating zone. The two streams are combined to provide a processable mixture. The processable mixture is introduced into a high intensity mixer. The processable mixture is transformed into a semi-molten discharge stream by the kinetic energy imparted to the processable mixture by the mixer, while the mixer is substantially-simultaneously vented to remove and recover particulates therefrom. The particulates so recovered are recycled to an inlet which is upstream of the mixer. The semi-molten mixture emerging from the mixer is introduced into an extruder, or a press, where it is formed into a mass of the desired shape, and is cooled. This method allows for the production of useful, shaped masses from two different classes of materials which have been otherwise treated as waste.
Lazareck Jack
Walsh Martin
Borden Ladner Gervais Llp
Lazareck Jack
Walsh Martin
LandOfFree
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