Vacuum Disc Dryer

Air-dryer Principle and Process

   Continuous addition of wet material into the main hopper, followed by opening the upper electric vacuum globe valve to alternately distribute the material into the top two storage bins. The upper and lower vacuum globe valves of the bins are alternately opened and closed, with the material continuously added to the top layer of the dryer's drying tray under the action of the mixing motor. The scraper arm with rake blades rotates, continuously flipping the material to ensure thorough heat absorption. The material flows over the drying tray surface along an exponential spiral line. Material on the small drying tray is transferred to the outer edge, falling onto the outer edge of the larger drying tray below. The material on the larger tray moves inward and falls through the middle discharge opening into the lower small drying tray. The trays, large and small, are alternately arranged, allowing the material to continuously flow through the entire dryer. A heating medium is introduced into the hollow drying trays, entering at one end and exiting at the other. The dried material is then...^The upper drying tray falls into the cooled bottom layer of the shell.^The material is then transferred to the discharge port by the耙叶, and discharged through the alternating operation of the upper and lower electric vacuum globe valves. Moisture evaporates and vaporizes from the material, which is then forcibly extracted by vacuum pumps from the tanks located above and below. The solvent condenses in the cooler and enters the buffer tank for recovery, while the moisture is removed.^Rear is empty.

   Vacuum Disc Dryer Process Suitable for drying heat-sensitive materials with very low drying temperature requirements, such as biological products, enzymes, solvent-containing materials, etc. Wet materials are added in batches to a quantitative feeder capable of withstanding vacuum, and then the vacuum drying process is initiated. Empty pump, after the drum dryer is in a negative pressure state, the material is evenly added into the dryer for drying operation through a continuous locking device, and the dried material is discharged from the outlet at the bottom of the dryer. Moisture released from the material is recovered through a condenser and solvent receiver, with the entire process conducted under vacuum.