B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
259/43.2, 222/84
B01F 7/24 (2006.01) B01F 15/02 (2006.01) B29C 47/10 (2006.01) B01F 7/00 (2006.01) B01F 13/10 (2006.01)
Patent
CA 1104558
MIXING FLUFFY AND RIGID PLASTICS MATERIALS ABSTRACT OF THE DISCLOSURE Apparatus and methods for mixing fluffy scrap and rigid plastics materials for subsequent discharge of the mixture to an extruder comprises an upright mixing chamber to which rigid, fluent plastics pellets are fed by gravity and into which fluffy, ground scrap plastics material is fed by positive drive means from a hopper. Delivery of an adequate quantity of scrap material to the mixing chamber is assured by the provision in the scrap hopper of an agita- ting mechanism which is interposed between the top and the bottom of the hopper and which is operable to permit scrap material to pass downwardly to the bottom of the hopper for engagement by a feeding auger, but which prevents subjecting such scrap material to the weight of additional scrap in the hopper, thereby preventing bridging of the scrap at the lower end of the hopper. Feeding of the base and scrap ma- terials from the mixing chamber to the extruder is achieved by a rotary auger having an interrupted vane which provides for alternate compaction and expansion of the scrap material with consequent facilitation of the entry of base material to the mixing chamber.
317591
Hydreclaim Corporation
Ridout & Maybee Llp
LandOfFree
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