The most important components of the infrared rotating drum IRD are the radiator module within a horizontal rotating drum, which has an integral, welded, conveyor screw.
The material to be processed is fed continuously, by a volumetric metering unit, into the integral screw of the rotating drum, distributing it evenly through the dryer. The dwell time depends on the rotational speed of the drum and is adapted precisely to the operational parameters.
At the end of the rotating drum the material falls into the output hopper and can be transferred directly to the next process step.
Always on the go
The rotation of the drum constantly mixes the material being conveyed in the screw. Mixing elements, in the individual spiral segments, aid optimal mixing so uneven radiation and material agglomerates can be ruled out. Moreover as the drum rotates at a slow speed of 1-5 rpm the material is not aerated.
Reliable radiator module
The radiator modules, built into the infrared rotating drum, are the result of KREYENBORG’s intensive development that has led to thermal optimisation.
Coating the air-cooled modules with a special functional ceramic ensures effective shielding against short-wave infrared radiation.
The radiator module itself is cooled by a continuous airstream preventing dust particles effecting them while quickly exhausting moisture from the dried material.
As a rule the warm, humid air is extracted and discharged from the rotating drum through an exhaust pipe.
Low maintenance
Thanks to its robust and reliable construction the infrared rotating drum IRD needs minimal maintenance. Regular tasks involve just the replacement of the infrared radiators.
All components of the machine are easily accessible through large doors and the separately extractable radiator unit, which makes it possible to carry out all necessary maintenance and cleaning tasks quickly.
Design and function
