| 摘要 |
<p>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 <?in-line-formulae description="In-line Formulae" end="lead"?>D=10<SUP>3</SUP>{square root over (d<SUP>2</SUP>K)},<?in-line-formulae description="In-line Formulae" end="tail"?> 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.</p> |
