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公开(公告)号:US09975278B2
公开(公告)日:2018-05-22
申请号:US14759524
申请日:2013-12-05
发明人: Bernhard Rabiser , Rainer Schwuchow
CPC分类号: B29C37/006 , B01D5/0012 , B01D19/0073 , B29B7/84 , B29C47/0877 , B29C47/767
摘要: An improved device for degassing polymer melts is characterised by, inter alia, the following features: the at least one vacuum separator comprises cooling pipes extending parallel to each other in the tank interior of the vacuum separator housing, the cooling pipes are double-walled, the cooling pipes end at a distance above a collection chamber or above the tank bottom of the vacuum separator housing, and a cleaning device having a scraper or a wiper is provided, said cleaning device being adapted to the cross-sectional shape of the cooling pipes and preferably to the course of the inner wall of the vacuum separator housing and being movable at least in a partial height at least to the lower end of the cooling pipes.