Difference between revisions of "Spin Flash Dryers"

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[[File:Spin-flash-dryers-250x250.jpg|thumb|right|200px|Spin Flash Dryer]]
If the wet cake is a paste or sludge, the '''Spin Flash Dryers''' are the most suited for drying application. The dryer is fitted  with a  mechanical agitator which helps to disperse the wet cake without  any  need for back mixing of the dry powder. the feeding system  includes a  feed tank with agitator and a screw feeder for feeding into  the drying  unit. The heart of drying process is cylindrical drying  chamber, where  the drying air enters the air distributor. The tangential  air  distributor of special design introduces the air as an intense  swirl  flow. the simple spin flash dryer is designed to handle  materials that  can be suspended directly in air. The drying process  usually is completed in 0. 5 - 2 sees, and the final moisture is  generally in the  constant rate drying zone. Various types of spin flash  dryers designs  are available based on uniform / non uniform particle  size of the feed /  product. the feeding of cake is through  specially designed paddle  mixer / screw conveyor with / without rotary  injector depending on  rheology of feed material. For difficult to handle  feed materials part  of dried powder can be re-cycled. Spin flash dryers  are suited for  filter cakes, semi dried powders.

Revision as of 08:06, 24 July 2012


Spin Flash Dryer

If the wet cake is a paste or sludge, the Spin Flash Dryers are the most suited for drying application. The dryer is fitted with a mechanical agitator which helps to disperse the wet cake without any need for back mixing of the dry powder. the feeding system includes a feed tank with agitator and a screw feeder for feeding into the drying unit. The heart of drying process is cylindrical drying chamber, where the drying air enters the air distributor. The tangential air distributor of special design introduces the air as an intense swirl flow. the simple spin flash dryer is designed to handle materials that can be suspended directly in air. The drying process usually is completed in 0. 5 - 2 sees, and the final moisture is generally in the constant rate drying zone. Various types of spin flash dryers designs are available based on uniform / non uniform particle size of the feed / product. the feeding of cake is through specially designed paddle mixer / screw conveyor with / without rotary injector depending on rheology of feed material. For difficult to handle feed materials part of dried powder can be re-cycled. Spin flash dryers are suited for filter cakes, semi dried powders.