Working principle and scope of application of fluidized bed dryer

First, the working principle of fluidized bed dryer

The exciting force is generated by the throwing of the vibration motor, and the material jumps forward under the action of the exciting force in a given direction, and the hot air input at the bottom of the bed causes the material to be in a fluidized state, and the material particles are in full contact with the hot air, thereby achieving the desired effect. The material enters from the feeding port, and the material on the vibrating trough is in orthogonal contact with the hot air passing through the lower part of the vibrating trough, and the humid air is led out by the induced draft fan, and the dry material is discharged from the discharge port.

Second, the application range of fluidized bed dryer

This type of equipment is mainly suitable for the drying of powder and granular materials. For example: chemical: boric acid, borax, p-diphenol, catalyst, polyvinyl chloride, light calcium carbonate, anhydrous sodium sulfate, and the like. Medicine: glucose, gulonic acid, Zhimu, platycodon, Atractylodes, granule pills, capsules, etc. Food: MSG, sugar, salt, distiller's grains, bone glue, watercress, etc. Light industry: washing powder, corn germ, starch, etc. Others: mineral powder, metal powder, coke, steel sand, bait, furfural, silica sand, toner, pottery, glutamic acid, quartz, abrasive, fertilizer, granular pesticide, seed, pasture, bone powder, mica asbestos, wood Movies, etc.

Third, the characteristics of fluidized bed dryer

The material is in full contact with hot air and is evenly dried. The heat transfer area is large, the heat transfer and mass transfer coefficient are high, and the energy saving effect is remarkable. Good adjustability, different wet materials, choose different in-machine residence time. The surface of the material is lightly damaged and hardly damaged to the crystalline material, and can be used for fragile materials. The drying chamber is fully enclosed and operates under micro-negative pressure without cross-contamination. It can be connected with other upper and lower process devices to achieve continuous operation.