CCSD Closed Cycle Spray Dryer For Special N2 Drying

Working Principle

First of all, filling the heated nitrogen into the tower, the liquid materials to be dried are transported to the
centrifugal atomizer by the liquid transport pump, then they are rotated in a high speed, and finally become the fine droplets, the droplets in the drying tower fully heat exchange with hot nitrogen, the liquid parts have been instant evaporated, the solid parts become powder materials down to the bottom of the drying tower, and then the dried powder will be discharged from the bottom of the tower.
Under the effects of the fan, the evaporated organic solvent passes through the cyclone separator, bag filter to remove the powder in the nitrogen, and then is condensed in the condenser. To avoid any liquid solvent to be brought out, we included a gas-liquid separator after the condenser.
The inert gas (such as nitrogen etc) works as drying media will be heated again and circulate in the system to form a closed cycle. XLP Closed Cyclone Spray Dryer works under the fully sealed system, the drying media is inert gas (such as nitrogen etc), and the working system is under positive pressure. The pressure transmitter will control the nitrogen inlet system to feed nitrogen when the system is under negative pressure, so to ensure pressure balance of the system.
It has a protective effect on the dry material since using nitrogen as the circulation carrier. The circulation
carrier, such as nitrogen will carry moisture, dehumidify and circulate in the system. The circulation carrier will be reused.
The conventional ordinary centrifugal spray drying has a continuous air supply, and air exhaust to reach the purpose of drying and the drying tower controlled under negative operation pressure, which is obviously different with the explosion-proof closed cycle spray drying system. So the explosion-proof closed circulation spray drying system is particularly suitable for drying the materials with organic solvents, toxic gas and the drying process need to protect the material from oxidation.

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