Extrusion Asia Edition 2-2022

33 Extrusion Asia Edition 2/2022 案”。 通过将模板上的压力积聚减少40%，在造粒后直接实现 了30-40%的低乙醛含量。以前的试验表明，由于减少的乙醛 含量代表了不同的起始位置，因此在脱水过程中，可以预料会 有较低的能量输入。 ECON PET-版是一个非常节能的解决方案，用于 rPET/PET造粒，从而为循环经济做出贡献。 "在PET回收方 面，回收材料的产出比对生产线的盈利能力有显著影响，这意 味着使用ECON技术可以带来显著的竞争优势” Gerhard He- metsberger（销售总经理）如是说。ECON始终专注于根据客 户的个性化需求，为客户量身定制解决方案。 2022年K展:现场演示 在2022K展上，PET-版将在现场演示中以全自动版本亮 相。ECON的另一个亮点是全新的EWFP (ECON专业的水过 滤系统)。该过滤器达到了55微米的过滤等级，可以实现全自 动和免维护的操作。除了运行设备，还将展出为挤出机螺杆专 门研制的裂解炉- EPOS。 W ith the help of the ECON patented thermal insulation technology, a safe start-up process is obtained. By pre- venting heat transfer from the die plate unit into the process water, not only is the freezing of die holes prevented, but a con- siderable amount of energy is saved. In addition, special atten- tion has been paid to an appropriate insulation of the water tank and the piping in order to achieve an end temperature of the pellets of at least 140°C. Depending on the customer's require- ments, ECON provides a tailor-made solution to ensure the re- quired pellet end temperature. Not only is the pelletizer engineered to operate with minimum energy consumption, so the downstream equipment – the ECS (ECON Crystallization Sys- tem for PET). This uses the intrinsic heat of the pellets for crys- tallization and is therefore one of the most efficient methods of crystallizing PET. The system is designed to keep the PET pellets at a constant temperature and to achieve a degree of crystalli- zation of 30 to 40 %. In the crystallization channel, the pellets are conveyed further by gentle vibration and mixed to prevent sticking during crystallization. The high degree of crystallization enables a faster pre-drying of the pellets before further proces- sing (e.g. injection molding), which saves a considerable amount of time. Low acetaldehyde content In the food sector, a low acetaldehyde content of recycled PET is required in order to be able to meet the legal guidelines. "Our goal in the development of the ECON PET-Edition was to achieve ➠ ECON GmbH Biergasse 9 I 4616 Weißkirchen I Austria www.econ.eu K 2022: Halle 9, Stand C30 K 2022: 9号厅，C30展台 a significantly improved value in comparison to conventional pel- letizing systems," explains Dominik Neumann, team leader of the R&D department. Together with the customer, we worked intensively on an efficient solution. By reducing the pressure build-up at the die plate by 40 %, a low acetaldehyde content of 30 to 40 % was achieved directly after pelletizing. Previous tests have shown that a lower energy input can be expected dur- ing dehydration, since the reduced acetaldehyde content repre- sents a different starting position. The ECON PET-Edition is a very energy-efficient solution for pel- letizing rPET/PET and thus contributes to the circular economy. "When it comes to PET recycling, the kW/t of recycled material has a significant impact on the profitability of the production line. This means that using the ECON Technology results in a si- gnificant competitive advantage”, says Gerhard Hemetsberger (Head of Sales). ECON always focuses on a tailor-made solution, based on the individual requirements of their customers. K 2022: LIVE Demonstration At K 2022, the PET-Edition will be displayed in a fully automated version during a live demonstration. Another highlight is the new EWFP (ECON Water Filtration Professional). The filter achie- ves a grade of filtration up to 55 µm and allows a fully automa- tic and maintenance-free operation. Besides the running equipment, the pyrolysis furnace – EPOS – specially developed for extruder screws will be exhibited. www.smart-extrusion.com