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1. (WO2018033355) DEVICE AND METHOD FOR PRODUCING PLASTIC GRANULATE

Pub. No.:    WO/2018/033355    International Application No.:    PCT/EP2017/068949
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Fri Jul 28 01:59:59 CEST 2017
IPC: B29B 9/06
B29B 9/12
B29B 9/16
F26B 17/00
B29C 47/00
Applicants: COPERION GMBH
Inventors: CONRAD, Ulrich
KERN, Norbert
SCHMUDDE, Markus
STÖHRER, Bernhard
HORNBERGER, Heiko
Title: DEVICE AND METHOD FOR PRODUCING PLASTIC GRANULATE
Abstract:
The invention relates to a device (1) and a method for producing dyed (G1) and undyed (G2) plastic granulate, comprising a multi-shaft worm machine (2) and an underwater granulating device (3). The underwater granulating device is arranged downstream of a granulate changing unit (20) in a conveyor direction (19), said granulate changing unit separating the dyed plastic granulate from the undyed plastic granulate. The dyed plastic granulate is separated from the granulating water (W1) by means of a first separating device (24), whereas the undyed plastic granulate is separated from the granulating water (W2) by means of a second separating device (29). The separating devices are arranged parallel to each other. The device allows a simple, flexible, and economical selective production of the dyed and undyed plastic granulate.