| 摘要 |
<p>The invention relates to an apparatus for preprocessing and subsequently conveying or plasticizing plastics, comprising a container (1) with a mixing and/or comminuting tool (3) that can rotate about a rotational axis (10), wherein an opening (8) is formed in a lateral wall (9) through which the plastic material can be discharged, and a conveyor (5) is provided with a screw (6) rotating in a housing (16). The housing (16) is divided into two chambers (40, 41), the front chamber (40) of which comprising the feed opening (80) and the rear chamber (41) at least one degassing opening (42), both chambers (40, 41) being connected to each other by a channel (44) in which a melt filter (45) is arranged. The invention is characterized in that the imaginary extension of the longitudinal axis (15) of the conveyor (5) passes by the rotational axis (10) counter the conveying direction (17), wherein the longitudinal axis (15) is on the outlet side offset by a distance (18) in relation to the radial (11) that is parallel to the longitudinal axis (15). The length (L) of the screw (6) in the front chamber (40) lies in the range of 10 to 40 times the nominal diameter (d) of the screw (6), and the distance from the opening (46) of the channel (44) into the rear chamber (41) to the degassing opening (42) lies in the range of 1.5 to 15 times the nominal diameter (d) of the screw (6).</p> |
