FLASH DRYERS

SINGHASINI Flash Dryer in its simplest form of mechanical design, is merely a Hot Air Conveyor into which solids, if reasonably free flowing, may be dropped.  The material then gets dispersed thus exposing maximum surface to the drying process.  This leads to a very rapid drying rate and the time required is in seconds - not in minutes or hours.  Due to the short exposure time and rapid evaporation of water, even though high temperature is employed, the material remains at wet bulb temperature (W.B.T.) until all traces of surface moisture are removed.  Thus it is possible to employ high inlet temperature may be up to 700 Deg.C, without affecting the quality of the material which may even be a heat senstive one.



TYPES OF FLASH DRYERS:

Flash Drying systems are designed for specific problems and may fall into one of the following categories:


  • Flash Drying without Disintegration or Pulverisation
  • Flash Drying with Disintegration
  • Flash Drying with Pulverisation


Fig.1
FLASH DRYING WITHOUT DISINTEGRATION OR PULVERISATION
If the material to be dried is in a reasonably free flowing form, then flash drying alone without Disintegration or Pulverisation could be employed.  Fig.1 illustrates the system consisting of Automatic Feeder, Ventury type gas Conveyors System into the thread of which material is fed, and a Cyclone Separator is installed to separate the fines.  It also requires suitable type of heater.

Flash Drying without Disintegration or Pulverisation are tailor made equipment’s and sizes depend on individual requirement , should you require any information please feel free to get in touch with us.


Flash Drying without Disintegration or Pulverisation are tailor made and sizes depend on individual requirement, should you require any information please feel free to get in touch with us.



Fig.2
FLASH DRYING CUM DISINTEGRATION 
Fig.2 Illustrates the system consisting of Heater, Conditioner and the Disintegrator along with a Cyclone Separator.  The disintegration is accomplished in a SINGHASINI Cage Mill/Hammer Mill.  Depending upon a specific requirement a conditioner or dust collector may or may not be included in the system.

The product obtained in the system is in the form of dry coarse powder.


Flash Drying with Disintegration are tailor made and sizes depend on individual requirement, should you require any information please feel free to get in touch with us.



Fig.3
FLASH DRYING CUM PULVERISATION
In this system Fig-3 High Speed Impact Pulveriser with Cyclone Collector is used into which Hot Air is introduced.  This system could easily be adopted with advantage and economy if the end product required is in the form of fine powder.  This replaces the system of pre-drying if done in Tunnel, Rotary or Tray Dryers.  Similarly as in the case of Flash Drying cum Disintegration, a Conditioner and Dust Collector may or may not be required with the Drying cum Pulverisation system.

Flash Drying with Pulveriastion are tailor made and sizes depend on individual requirement, should you require any information please feel free to get in touch with us.






INTEGRAL PARTS OF FLASH DRYING SYSTEMS:
1) CONDITIONER
2) AIR HEATER :
Steam Heater / Direct or Indirect gas oil or solid Feed Heater / Electrical Heater.
3) DUST COLLECTION

Should you require any information please feel free to get in touch with us.


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