Vorrichtung zum Granulieren von Kunststoff-Strängen

摘要

A new device is disclosed for granulating plastic strands (4) that come out of nozzles (3) in a molten state and are supplied to a downward inclined discharge channel (1) in which they are conveyed by means of a flow of liquid, in particular water. The device further has a dewatering section (1b) for the plastic strands (4) and a granulator (6) arranged behind said dewatering section. At least one tempering section (9) is arranged between the dewatering section (1b) and the granulator (6). The tempering section (9) consists of a stiff stationary channel (15) and integrated transport rollers (16) for the plastic strands (4). The tempering section (9) is long enough for the temperature differences over the cross-section of the plastic strands (4) to be largely equilibrated during their dwelling time in the tempering section (9). After running through the tempering section (9), the plastic strands (4) enter the granulator (6) in which they are granulated by one or several cutting blade arrangements and are then discharged as a plastic granulate.