Working principle of fluidized bed dryer:
The working principle of fluidized bed dryer is based on fluidized bed technology. The granular solid material is placed on a porous plate, and a drying medium (usually hot air) with a considerable speed is fed from its lower part. When the medium flow rate is low, the gas flows between the material particles, and the entire material layer does not move; gradually increase the air flow speed, the material layer begins to expand, and the gap between the particles increases; increase the air flow speed again, and a considerable part of the material is suspended, forming a gas-solid mixed bed, that is, a fluidized bed. At this time, the material particles are suspended in the air flow, fully contacting with the gas for heat and mass exchange. After the material is dried, it is discharged from the discharge port, and the exhaust gas is discharged from the top of the fluidized bed and recovered by the cyclone dust collector group.

Application areas of fluidized bed dryer:
Fluidized bed dryers are widely used in chemical, food, medicine, ceramics and other industries. For example, in the food industry, fluidized bed dryers are used to dry foods such as fruits, vegetables, and rice; in the chemical industry, they are used to dry solid particles such as fertilizers, pigments, and polyethylene.

Fluidized bed dryers have the following characteristics:
‌High efficiency of heat and mass transfer‌: The material particles are suspended in the air flow and are in full contact with the gas, with high heat and mass transfer efficiency.
‌Wide range of application‌: Suitable for materials of various shapes and properties, including powder, granular, paste, etc.
‌Flexible operation‌: The drying process can be controlled by adjusting the air flow speed and temperature to meet different drying needs.
‌Simple structure‌: The structure of the fluidized bed dryer is relatively simple, easy to operate and maintain.

Technical specification:

★The above evaporation is the maximum evaporation amount.