GEA supply a range of Rotary Coolers; Cascade, External Water Spray, Sectional and Combined Dryer/Coolers, all designed and built with the care and attention expected to cope with industry's most arduous tasks.
Cool under all conditions.
Similar to the operating principles of Cascade Dryer, but with the hot gases substituted by ambient or chilled air, Cascade Coolers always operate in counter-flow. Generally used for lower temperatures, coarse product applications or in conjunction with an indirect system.
Simple design with either a continuous or recirculated flow of water being continuously irrigated over the rotating drum by a series of external water sprays mounted over the drum.
Suitable for dusty and/or high temperature applications (i.e. where products are fed from kilns, calciners or ovens) where space is limited, or where the material must be cooled to a temperature approaching ambient.
The sectional cooler has individual product chambers that are cooled via water within a closed circuit. The design ensures that the hot material is in continuous contact with the water cooled walls of the vessel.
The system is more efficient and has the advantage of presenting a much larger cooling surface. The individual product chambers also ensure gentle action thus avoiding degradation of the material.
Is configured to maintain the counter-current principle through both the drying and cooling zones with supplemental drying air being introduced by a central tube. With the cooler exhaust being used as heated drying air, this configuration minimizes airflow and the associated electrical fan power. Best suited for high ambient temperature and humidity conditions (as in sugar cane regions).
This combines co-current drying and counter-current cooling, with the converging airflows being exhausted from the centre of the dryer/cooler. Permits higher drying temperatures, reducing drum diameter and is especially suitable for beet, cane and certain 'special' sugar applications.
Calciners are used to change the "state" of a material. GEA's direct fired and indirectly heated Rotary Calciners are custom designed to suit your individual product and process requirements.
The GEA Rotary Dryer is extensively used throughout the process industries and is highly reliable under the most arduous operating conditions.
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