DRYING: Continuous System Dries PET In 10 Minutes or Less

30% increase in throughput possible.

Kreyenborg will unveil its new PET-Booster at K 2016, which focuses on production of plastic films and fibers with twin-screw, planetary- and multi-screw degassing extruders. Kreyenborg says the technology can eliminate the varying levels of input moisture, which can lead to process fluctuations in the extrusion process, as well as end-product quality. By feeding pre-heated material with a consistent, low input moisture level, a smaller extruder and vacuum degassing system can be used, so that with existing plants, a 30% throughput increase can be realized. In addition, liquid precipitate from the vacuum system is reduced by up to 50%.

Also at the K, Kreyenborg will debut its pneumatic conveying system. Drawing from its own experience of having to convey poorly flowing bulk materials like bottle or film flakes, Kreyenborg has incorporated hopper loaders with geometries that avoid material bridging or have internal bridge-breakers. A large outlet is standard on the system, and the conveyors also feature a compact, large central filter, suitable for handling dusty regrind. The conveying systems

Owing to many years’ experience with the conveying of poorly flowing bulk materials, as for example bottle flakes or film flakes, that still present a challenge, Kreyenborg has incorporated hopper loaders into the process. The conveyers are distinguished by their container geometries that avoid bridging or even have internal bridge-breakers. The containers come standard with an extremely large outlet. The conveyors have a compact central filter unit with a large filter area, to meet the requirements for dusty regrind materials.

The conveying products can be combined with additional Kreyenborg components for complete systems with an integrated PLC-Control. The company notes that its mixing and feeding systems are distinguished by a specific focus on the particular bulk material to be processed. The Universal Quick Mixer, for instance, features extremely precise mixing and homogenizing of bulk materials with limited flow properties, while the Masterbatch Mixer offers fast and gentle mixing and homogenizing of sensitive bulk materials. The company’s silos, including its fiber- and flake silos, are used where conventional systems cannot work reliably.