Vertical fluid bed dryer

A vertical fluid bed dryer is a type of industrial drying equipment used to dry solid materials by passing a stream of hot air or gas vertically through a bed of particles, causing them to fluidize. This fluidization helps to increase the contact area between the particles and the drying medium, leading to efficient heat transfer and rapid moisture removal.

how does vertical fluid bed dryer works:

1. Material Loading: The wet or moist material to be dried is fed into the top of the vertical dryer chamber. This material may be in the form of powder, granules, or particles.
2. Fluidization: A stream of hot air or gas is introduced into the bottom of the dryer chamber. As the air flows upward through the bed of particles, it creates a fluidized state where the particles behave like a fluid. This fluidization helps to suspend and agitate the particles, allowing for efficient mixing and heat transfer.
3. Heat Transfer: The hot air or gas transfers heat to the wet material as it flows through the bed. This heat causes moisture within the particles to evaporate, leading to drying.
4. Moisture Removal: As moisture evaporates from the particles, it is carried away by the flowing air or gas. The moisture-laden air or gas exits the dryer chamber through an exhaust system.
5. Controlled Process: The drying process is controlled by adjusting parameters such as the temperature and flow rate of the drying medium, the residence time of the material in the dryer, and the bed height.
6. Product Collection: Once the material is dried to the desired moisture content, it exits the dryer chamber from the bottom. The dried product may be collected for further processing, packaging, or storage.
7. Cooling: In some cases, a cooling section may be included at the bottom of the dryer chamber to cool the dried product before it is discharged.

Technical Parameters