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AssigneeEREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
InventorsHelmut Bacher, Helmuth Schulz, Georg Wendelin
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A device for the preparation of, preferably thermoplastic, plastics material for recycling purposes has a container (1) in which at least one rotating mixing and/or comminuting tool (14) is arranged. The material thus treated is fed through an outlet opening (17) which is arranged at the bottom of the container (1) and to which the feed opening (18) of a housing (19) is fluidly connected. In this housing are arranged at least two screws (21, 22) which are jointly charged with material. The diameter (D) of the container (1) and the diameter (d) of each of the screws (21, 22) are in the relationship D=103{square root over (d2K)}, where D is the inner diameter of the circular cylindrical container (1) or the inner diameter of a hypothetical circular cylindrical container converted to the same capacity and having the same effective height, d is the screw diameter, and K is a constant greater than or equal to 50.
A device for the preparation of plastics material for recycling purposes comprising a container which has an inlet opening at the top for the material to be processed, wherein at least one movable mixing and/or comminuting tool is arranged in the container, and the material treated by this tool is fed through an outlet opening which is arranged at the bottom of the container and to which the feed opening of a housing of an apparatus comprising at least two screws is fluidly connected, the at least two screws being jointly charged with material coming from the container, a diameter of the container and a diameter of each of the screws having the following relationship:
Dependencies are inferred from the claim text.