高通量滤筒延长了过滤器寿命，提高了PET回收生产线的产品质量

诺德森公司(Nordson Corporation)今天宣布，一种设计用于抵抗变形和增强聚合物流动的筛换滤芯，使Starlinger回收技术提供的高通量PET回收线的操作员能够减少过滤器更换频率，并提高颗粒质量。万博平台盘口将在NPE2015上展示新墨盒。Starlinger公司的recoSTAR®PET 165 HC iV+回收生产线安装在一家欧洲公司的“瓶对瓶”回收生产线上，其中包括位于挤出机和水下造粒机之间的诺德森克莱恩堡k - swek - 4k -75/RS筛换器。该生产线操作“24/7/365”，将PET瓶片转换为rPET，获得欧洲食品安全局(EFSA)的好评，可在瓶中重复使用，根据应用可调节特性粘度水平。Starlinger回收技术的工艺工程主管Christian Lovranich表示，当Starlinger的客户用新的Nordson Kreyenborg滤芯替换了屏幕更换中的标准过滤介质时，过滤器的使用寿命从8小时延长到了72小时。除了延长过滤器寿命外，新型滤筒的设计创新也满足了高通量系统的需求，如1.400至1.600 kg/h(3,086至3,527磅/小时)。燕八哥。Lovranich先生说:“滤筒的较大过滤面积和停滞区的消除减少了压力变化，这可能会降低颗粒质量。”此外，反冲洗时物料损失更少，也没有金属杂质。除了显著提高筛管寿命外，还实现了反冲洗量比以前的系统(传统的反冲洗过滤器)减少40%。 The resulting waste reduction alone led to a short pay-back of the replacement investment. The available filter area is 1.672 cm2 (260 sq.in.) and the filtration fineness is 50 mm with the used screens. The robust, stable structure of the new filter cartridge prevents pressure loss and deformation of the steel filter fabric, or screen medium, enabling it to withstand the high mechanical stresses encountered during production startup, noted Christian Schröder, research and applications engineer for Nordson PPS GmbH. “Our new filter cartridge is an alternative to standard filter discs, in which surface area is increased through pleating of the filter fabric—that is, installation of the fabric in a wave or wrinkle pattern instead of being flat,” said Mr. Schröder. “The pleating makes the fabric susceptible to mechanical stresses, which can reduce the efficiency of melt filtration by causing the pleated layers to be pushed together or squeezed during processing. This also reduces the working life of the filter.”