PREFORM PRODUCTION PETplanet Insider Vol. 26 No. 06/25 www.petpla.net 34 A technological overview of a new beverage packaging plant Developments in rPET preform production PET Solutions has recently completed the installation of a production line for a leading client in the beverage industry, designed specifically for the processing of rPET for preform manufacturing. With a throughput of approximately 6,000 kg/h, the facility incorporates technologies aimed at improving energy efficiency, material consistency, and operational reliability. The project reflects broader industry trends towards environmentally responsible packaging solutions. Material handling: external silo loading system The first stage of the plant’s operations involves the handling and loading of raw materials into four external silos, which are supplied by Ergomec, part of Pegaso Industries. These silos are equipped with pneumatic transport systems that securely transfer materials while maintaining strict standards for contamination control. The system is designed to automate material flow, ensuring a continuous and steady supply of material to the downstream feeders. This is not only claimed to enhance the operational efficiency of the plant but also to minimise the risks associated with manual handling, reducing contamination risks and improving safety. The use of pneumatic transport ensures that the materials are transferred in a controlled and clean manner, which is especially critical when handling rPET. Material blending: gravimetric dosing system The production line features a gravimetric dosing system with an accuracy of ±0.1%. Capable of managing up to eight different components, the system offers throughput rates ranging from 50 kg/h to 3,000 kg/h. Real-time monitoring and an adaptive recalibration feature help maintain consistent material quality. The system is operated via a Siemens S7 programmable logic controller (PLC) and a 7-inch touchscreen interface, allowing for precise monitoring and fine-tuning of material flow, contributing to product quality and reducing the chances of error during the production process. Moisture removal: DRV vacuum drying technology At the core of the plant’s operations lies the DRV technology, a continuous vacuum drying solution optimised for drying both rPET and virgin PET materials before injection moulding to produce preforms. Operating under low-pressure conditions, the system aims to reduce moisture content without causing overheating and degradation while improving energy efficiency. Key features of the DRV system include: Material protection: The low-pressure operation prevents thermal degradation and preserves the quality of the material, preventing common issues such as yellowing. Energy efficiency: The DRV system operates with a reduced energy footprint compared to conventional systems, eliminating the need for oil condensers and providing energy savings. Fast and uniform drying: Four interconnected hoppers provide continuous and balanced drying. Quick material changeover: The system is claimed to reduce PREFORMS Continuous vacuum drying technology Complete drying solution installed on mezzanine level
RkJQdWJsaXNoZXIy NTY0MjI=