An agglomeration unit for chemical recycling of plastics
Previero N. with its Sorema division, known for high-quality recycling solutions, has now redesigned its Tramu technology as a further step in closing the plastics recycling loop, especially for processing heterogeneous plastic fractions that pose a challenge for mechanical recycling.
Efficient processing of the source material using a chemical recycling process is a major challenge today. The mixed plastic fraction, which consists of light, thin, flexible plastics with densities below 50-80 kg/m³ and a high moisture content, is processed in a pyrolysis process. The aim is to convert these materials into a dense, dry product with a density of over 300-350 kg/m³ while ensuring consistent quality and low energy consumption.
In the context of chemical recycling, Previero has redesigned its Tramu technology, a continuous agglomerator with double degassing and calender. The main features of Tramu are its ability to agglomerate plastics at a temperature 20-30% lower than that of a standard extruder, and to remove moisture and gases at ambient pressure. By operating the machine under these conditions, the Tramu boasts low energy consumption. Wear and tear have been greatly reduced, while final density is ensured by degassing and calendering before final grinding. Tramu is available in three models, each suitable for different scales of operation, with capacities from 600 kg/h to 3,000 kg/h.
