Continuous drying processes have their specific requirements and challenges. We modify our dehumidification module to meet the requirements of your product and throughput. For continuous drying within specified cycle time, the air routeing must be fine-tuned to suit the specific product. Even the driest air is of no avail unless directed to the spot where humidity is to be absorbed. And this is exactly what we successfully implement.
Continuous drying on a belt or in a tunnel involves openings at the entrance and exit ends. Such openings must be considered when calculating the water absorption performance. We always try to minimize openings in the drying chamber to prevent undesired air loss and to keep the system as closed as possible. Continuous drying processes most often follow the so-called countercurrent principle.
Non-compressed air blowoff is used as required to achieve very short cycle times and/or to dry items of complex geometry. Such additional blowoff is provided at a preliminary stage to drying proper. Blowoff may be applied inside the dryer together with condensation drying. In continuous processes, air blowoff is applied as items enter the drying tunnel. Alternatively, a separate blowoff station may be installed. Such stations include movable nozzles. Powerful fans provide the perfect air knife. Blowoff stations were developed for stain-free drying of plastic items. The airflow rate produced by the air knives is always infinitely controllable – items have water blown off as best as possible and always remain in place.