The heating of pellets and/or and regrind (PVC, PET, PE, PP, etc.) prior to extrusion helps to significantly increase the capacity of the downstream equipment.
When PET, PLA PEEK, PPS, PBT or other materials are processed on the Kreyenborg industrial Infrared Dryers the material can be crystalized in the same step. Even so the process has a short residency time compared to conventional dryers the material can be dried from >1% moisture to less than 300 PPM within 15-20 minutes.
The IR Process also allows the coating of adhesives in the system (hot melt, EVA and lime, etc.)
Through this Thermal process it is possible to also remove volatiles from the material that is dried. The IR-CLEAN® Super-Clean recycling process. With the IR-CLEAN® system, KREYENBORG offers an attractive and cost-effective alternative for the direct reprocessing of PET post-consumer flakes for food packaging. This process has been awarded a LNO from FDA and is also EFSA compliant
The Kreyenborg radiator module has been specifically developed for the Infrared dryer and has been thermally and fluidic optimized for the process. It is continuously by the airflow through the dryer. A special ceramic ensures optimum utilization of infrared light which increases the efficiency of the technology. To protect the IR Radiators from moisture, dust particles, etc., Kreyenborg has developed an Air-Shield around it.
For large scale production environments, the continuous process is ideal since it ensures production without interruption. In this process the equipment is automatically filled by a volumetric dozing system. Throughout the rotating drum the material is evenly mixed and thermally treated. The process takes only minutes compared to conventional drying methods that take hours.
We offer infrared drying systems with capacities that range from 50 lbs/hour to 11,000 lbs/hour.
- For lower capacity applications Kreyenborg offers a batch process as well
- Advantages for your process
- Low energy consumption
- Minutes instead hours
- Instant heat
- High efficiency
- Simple changeover and maintenance
- heating, crystallizing and drying in one step
- Increase capacity for downstream equipment