Method for processing synthetic materials for the purpose of...

Details Method for processing synthetic materials for the purpose of... Method for processing synthetic materials for the purpose of...

2007-10-02

2007-10-02

Francis, Faye (Department: 3725)

Solid material comminution or disintegration

Apparatus

Series material flow only through plural comminuting zones

C241S199200

Reexamination Certificate

active

10558135

ABSTRACT:
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 relationshipin-line-formulae description="In-line Formulae" end="lead"?D=103{square root over (d2K)},in-line-formulae description="In-line Formulae" end="tail"?whereD 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, andK is a constant greater than or equal to 50.

REFERENCES:
patent: 4951883 (1990-08-01), Loppoli et al.
patent: 5622323 (1997-04-01), Krueger et al.
patent: 5984218 (1999-11-01), Peat
patent: 1173315 (2002-01-01), None
patent: WO 01/39948 (2001-06-01), None

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