Apparatus for the pretreatment and subsequent conveying, plastification, or agglomeration of plastics

摘要

The invention relates to an apparatus for the pretreatment and subsequent conveying or plastification of plastics, with a container with a mixing and/or comminution implement that is rotatable around an axis of rotation, wherein, in a side wall, an aperture is formed, through which the plastics material can be removed, a multiscrew conveyor being provided, with at least two screws rotating in a housing, wherein the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, where, on the outflow side, there is an offset distance between the longitudinal axis of the screw closest to the container, on the outflow side, and the radius that is parallel to the longitudinal axis, and in that the screws co-rotate.

主权项

1. An apparatus for the pretreatment and subsequent conveying of thermoplastic waste, the apparatus comprising:
a container configured to hold the thermoplastic waste to be pretreated; at least one mixing and/or comminution implement within the container, wherein the mixing and/or comminution implement is configured to pretreat the plastic material and comprises at least one blade configured to rotate around an axis of rotation, wherein the blade has a convex edge, and wherein pretreating the plastic material comprises at least one of mixing, heating, and comminuting the plastic material, wherein the container comprises an aperture through which the pretreated thermoplastic waste exits the container, wherein the aperture is formed in a side wall of the container adjacent to the mixing and/or comminution implement, at least one multiscrew conveyor configured to receive the pretreated thermoplastic waste through the aperture, the multiscrew conveyor comprising:
a housing comprising an intake configured to receive the pretreated thermoplastic waste from the container, andfirst and second screws in the housing, wherein the first and second screws are configured to rotate in opposite directions and to convey the thermoplastic waste in a conveying direction away from the container, wherein the imaginary continuation of the central longitudinal axis of the first screw is offset from the axis of rotation of the mixing and/or comminution implement at a point nearest the axis of rotation by an offset distance; and a motor configured to rotate the mixing and/or comminution implement, wherein the motor is structured to rotate the mixing and/or comminution implement such that the convex edge of the blade of the mixing and/or comminution implement leads during rotation, wherein the motor is structured to rotate in a direction which causes the motion of the convex edge to be described by a direction vector such that when the convex edge is nearest the aperture, the motion vector describing the motion of the convex edge nearest the aperture is either perpendicular to the conveying direction or has a vector component which has a direction opposite the conveying direction.