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公开(公告)号:EP3233404A1
公开(公告)日:2017-10-25
申请号:EP15820933.8
申请日:2015-12-10
CPC分类号: B29B9/065 , B29C48/285 , B29C48/36 , B29C48/695 , B29C48/78
摘要: Disclosed herein is a system comprising a first pump; a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it; a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 105 centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 105 centipoise.
摘要翻译: 包括第一泵(408)和造粒系统(600)的系统(400),所述造粒系统(600)包括位于所述第一泵下游并与所述泵流体连通的水下造粒机(604),还包括直接管线 504),其位于所述第一泵的下游和所述造粒系统的上游,其中所述直接管线不包含泵或热交换器,并且还包括旁路管线(506,510,512),所述旁路管线(506,510,512)位于所述第一泵 泵和造粒系统的上游,其中旁路管线包括第二泵(418),并且其中当聚合物具有大于10 5 mPas的熔体粘度时,第一泵可操作以通过直接管线将聚合物排出到造粒系统 并且当聚合物具有小于10 5 mPas的熔体粘度时,第一泵可用于通过旁路管线将聚合物排出到造粒系统。
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