MATERIALS / RECYCLING PETplanet Insider Vol. 26 No. 04/25 www.petpla.net 37 Continuity and process stability thanks to automation As a continuous filter, Cobra has two filter inserts: one is always active in production mode, the other in stand-by or in intermediate cleaning mode. The automated switchover has been designed to ensure a smooth changeover between the inserts. The system automatically checks the status of the filter inserts and initiates cleaning and switchover when needed, requiring only operator confirmation. This facilitates smooth, uninterrupted operation without manual intervention or errors. Automated inline cleaning The Cobra filter features the integration of BBE’s White Filter Cleaning technology (WFC). This process is claimed to enable chemical-free and environmentally friendly intermediate cleaning of the filter inserts using hot steam alone and extends the filter’s service life many times over. BBE has already had WFC in its product portfolio as a stand-alone solution for several years. Now, for the first time, the cleaning system is integrated directly into a filter, bringing additional advantages, like cleaning speed and wear-reduction. Production and cleaning become an alternating interaction. Only after multiple operating/cleaning cycles (the exact number depends on product and degree of soiling) is it necessary to completely remove the filter insert for a service check and full cleaning. According to the company, the WFC cleaning process takes around 10 hours, whereas conventional cleaning takes several days. Filtration and cleaning form a selfcontained, automated system that is designed to ensure both process and operating safety in equal measure: The operator does not have to handle melt or chemicals. BB Engineering designed the Cobra filter to tackle rising contamination in recycling while streamlining filter changes, automating cleaning, and reducing operating costs. Comparing the Cobra with other fine filters with a throughput of 2,000 kg/h reveals savings of 40% in direct operating costs, says the company. Savings stem from reduced melt loss in backflush cycles, extended service life through steam cleaning, and lower energy use due to minimised heating and cooling. The Cobra filter is claimed to cut costs on spare parts, consumables, and chemicals while automation reduces labour expenses. Its closed, chemical-free system enhances safety by eliminating risks like injury and fire. Additionally, its efficient cleaning aims to minimise process interruptions and downstream efforts. The new filter made its public debut at the PRSE in Amsterdam in early April. www.bbeng.de .PSF UIBO KVTU 7*4*0/ */41&$5*0/
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