Difference between revisions of "Spray Dryers"

The '''Spray Dryers''' offer an effective and efficient method of removal of  surface or on  bound moisture from a feed product. Spray dryers are pneumatic driers  having very low residence time within the equipment,  thus flashing off  the moisture from the feed. They are used for  efficient drying of moist  powders. Slurry, filter cakes, granules, etc.  They operate on varying  throughput rates from few hundred kilograms per  hour to hundreds of  tons per hour. Low temperature dehumidified air  could be used for heat  sensitive products to hot gases with temperature  up to 500 - 600 deg.  C. for temperature resistant products. spray  drying equipment comprises  of the feeding section normally a screw  feeder, rotary valve,  vibratory feeder, etc. Which feeds the wet product  in a controlled  fashion into the throat of the flash drier, where it is  mixed with hot  air produced by a hot air generator or heat exchanger