公开(公告)号：US20090108480A1

公开(公告)日：2009-04-30

申请号：US12293334

申请日：2007-03-15

申请人： Paulus Schmaus ,  Michael Heeger ,  Joachim Ruch ,  Jan Holoch ,  Christian Rasch

发明人： Paulus Schmaus ,  Michael Heeger ,  Joachim Ruch ,  Jan Holoch ,  Christian Rasch

IPC分类号： B29B9/10

CPC分类号： B29B9/065 ,  B29B9/16 ,  B29C44/3461

摘要： The invention relates to a process and an apparatus for pelletizing polymer melts comprising blowing agent in a pelletizing chamber through which a liquid flows, its pressure being above the ambient pressure. In a first step, the polymer melt is injected into the pelletizing chamber, in a second step the polymer melt is cut via a cutting apparatus into individual pellets and, in a third step, the pellets produced in the pelletizing process are discharged with the liquid from the pelletizing chamber and are then isolated from the liquid. This process also comprises at least one of the following steps: (a) comminution of agglomerates or of pellets which exceed a prescribed maximum size, in a comminuting machine downstream of the pelletizing chamber or in a comminuting unit downstream of the cutting apparatus, (b) depressurization of the liquid in a depressurizing machine, (c) depressurization of the liquid in a throttle apparatus, where there is, upstream of the throttle apparatus, a pressure-equalizing container, (d) isolation of the pellets from the liquid, without any prior depressurization of the liquid with the pellets which it comprises.

摘要翻译： 本发明涉及一种用于将聚合物熔体造粒的方法和装置，其包括在造粒室中的发泡剂，液体通过其流动，其压力高于环境压力。 在第一步骤中，将聚合物熔体注射到造粒室中，在第二步骤中，聚合物熔体通过切割装置切割成单个颗粒，并且在第三步骤中，在造粒过程中产生的颗粒与液体一起排出 从造粒室中分离，然后与液体分离。 该方法还包括以下步骤中的至少一个：（a）在造粒室下游的粉碎机或切割装置下游的粉碎单元中粉碎团块或超过规定最大尺寸的粒料，（b ）减压机中的液体的减压，（c）在节流装置中在节流装置的上游在压力平衡容器的上游减压液体，（d）颗粒与液体的分离，没有 液体与其包含的颗粒的任何预先减压。

公开(公告)号：US08795562B2

公开(公告)日：2014-08-05

申请号：US12293334

申请日：2007-03-15

申请人： Paulus Schmaus ,  Michael Heeger ,  Joachim Ruch ,  Jan Holoch ,  Christian Rasch

发明人： Paulus Schmaus ,  Michael Heeger ,  Joachim Ruch ,  Jan Holoch ,  Christian Rasch

IPC分类号： B29B9/06 ,  B29B9/16 ,  B28B11/16

CPC分类号： B29B9/065 ,  B29B9/16 ,  B29C44/3461

摘要： The invention relates to a process and an apparatus for pelletizing polymer melts comprising blowing agent in a pelletizing chamber through which a liquid flows, its pressure being above the ambient pressure. In a first step, the polymer melt is injected into the pelletizing chamber, in a second step the polymer melt is cut via a cutting apparatus into individual pellets and, in a third step, the pellets produced in the pelletizing process are discharged with the liquid from the pelletizing chamber and are then isolated from the liquid. This process also comprises at least one of the following steps: (a) comminution of agglomerates or of pellets which exceed a prescribed maximum size, in a comminuting machine downstream of the pelletizing chamber or in a comminuting unit downstream of the cutting apparatus, (b) depressurization of the liquid in a depressurizing machine, (c) depressurization of the liquid in a throttle apparatus, where there is, upstream of the throttle apparatus, a pressure-equalizing container, (d) isolation of the pellets from the liquid, without any prior depressurization of the liquid with the pellets which it comprises.

摘要翻译： 本发明涉及一种用于将聚合物熔体造粒的方法和装置，其包括在造粒室中的发泡剂，液体通过其流动，其压力高于环境压力。 在第一步骤中，将聚合物熔体注射到造粒室中，在第二步骤中，聚合物熔体通过切割装置切割成单个颗粒，并且在第三步骤中，在造粒过程中产生的颗粒与液体一起排出 从造粒室中分离，然后与液体分离。 该方法还包括以下步骤中的至少一个：（a）在造粒室下游的粉碎机或切割装置下游的粉碎单元中粉碎团块或超过规定最大尺寸的粒料，（b ）减压机中的液体的减压，（c）在节流装置中在节流装置的上游在压力平衡容器的上游减压液体，（d）颗粒与液体的分离，没有 液体与其包含的颗粒的任何预先减压。