Techno Designs offers the most versatile Continuous Drying System for cohesive and non-cohesive filter press cakes or filter nutche cakes wherein solid content varies from 20 to 70 percent. Being a direct drying process, the material is suspended in the hot drying air. The system offers the advantages of a very low labour and handling costs.

PRINCIPLE OF SPIN FLASH DRYING


The Spin Flash Drying is more often in the line of an agitated fluidized bed system. The drying agitator works as rotor to break the lumps and the hot air enters at reasonably high velocities to give dynamic action to dryand disintegrate the product.

Fresh air is sucked through hot air generator, which can be direct, indirect in nature. The entry to the drying chamber is tangential to give whirling air suction across the dryer. The hot air generator can be Liquid, Solid or Gaseous Fuel fired. The feed screw pushes the material to the drying chamber. The drying chamber has a rotor driven from the bottom. The rotor has specially designed scrapper blades and disintegrator for breaking the lumpy mass into smaller fragments.

The lumps, which are broken by the rotor, start drying and simultaneously disintegrating in the stream of hot air.

The airborne fine powder particles get carried to the top of the drying chamber and a classifier classifies them to the required size. The particles with larger diameter go back to the chamber, while the fine travel through with the air for final collection through reverse pulse bag filters, wherein almost 100% powder recovery is achieved.

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