Closed Cycle Organic Solvent Recovery Spray Drying Equipment

The closed cycle spray drying equipment works in a closed environment. The drying medium is an inert gas (or nitrogen). It is suitable for the drying of toxic gas materials or materials that are prone to oxidation during the drying process. The system uses inert gas as the circulating gas, which has a protective effect on the dried materials. The circulating gas undergoes the process of loading and dehumidifying, and the medium can be reused. The nitrogen is heated by the heater and enters the drying tower. At the centrifugal nozzle, the powdery material atomized by the high-speed circulating atomizer is discharged from the bottom of the tower. The evaporated organic solvent gas under the pressure of the negative pressure of the fan, the dust trapped in the gas is passed through the cyclone separator and sprayed. After the dust removal from the shower tower, the saturated organic solvent gas is condensed into a liquid by the condenser and discharged from the condenser. The non-condensable gas medium is continuously heated and reused as a drying carrier in the system. The conventional ordinary centrifugal spray drying achieves the purpose of dehumidification through continuous air supply and exhaust. This is also a significant difference between the explosion-proof closed centrifugal spray drying equipment and ordinary centrifugal spray drying equipment; the inside of the drying system is under positive pressure To maintain a certain positive pressure value, if the internal pressure drops, the pressure is automatically controlled by the pressure transmitter to ensure the system pressure balance.