With the development of fluidized bed drying equipment application technology, the type of material and adapt more and more, it has been widely used in chemical industry, light industry, medicine, food and other industries. Due to different materials and product drying of different requirements, also appeared in various forms of fluidized bed dryer. Now according to their type, as described below.

1. Single fluidized bed dryer
 
Single fluidized bed dryer is the simplest kind of model can be divided into continuous, intermittent two methods of operation. Continuous operation wider residence time distribution, which is easier and more used in dry or dried products index is not very demanding products. Intermittent drying operation can be used at higher moisture content of the material for some of the particles have a certain degree of unevenness and viscous material, the use of built-in bed with a stirrer low-bed operation.
 
The device is simple, easy maintenance, stable bed temperature, drying effect, but a long operating cycle.
 
This applies to ammonium sulfate, ammonium chloride, anhydrous sodium sulfite, polytetrafluoroethylene, calcium gluconate, basic dyes Qinglian, the catalyst particles, casein anhydride, coconut, salt and other materials. |
 
2. Multilayer fluidized bed dryer
 
Multilayer fluidized bed dryer because the residence time distribution, the drying time is shorter than the actual needs of the single fluidized bed. Can improve the uniformity of the dried product moisture, easy to control the quality of the product was dried. However, due to multi-fluidized bed dryer to increase the number of layers, but also to ensure the flow between the layers to form a stable state increases the complexity of the device structure. For the removal of moisture binding material, multi-layer fluidized bed is appropriate.
 
Multilayer fluidized bed dryer is suitable for drying polyester chips, sodium salicylate, aspirin amino, oxytetracycline, chlortetracycline, tetracycline, tablets starch granules, powdered sugar, feed, plastics, powder, grain and other granular materials
 
3. Horizontal multi-chamber fluidized bed dryer
 
Horizontal multi-chamber fluidized bed fluidized bed drying equipment to overcome the multi-layer structure is complex, bed resistance layer of wet material and other shortcomings of the first chamber continuously fed by the feeder drier due to the material in a fluidized state, it can be freely made a back room before a room. The dried material from the last drying chamber discharge port discharge, can be dried variety is difficult to dry granular materials and heat-sensitive materials, and gradually extended to the powdery material.
 
Such drying machine for polyvinyl chloride resin, polypropylene resin, polyamide 1010, o-chlorobenzoic acid, tetracycline, oxytetracycline, chloramphenicol, liver powder, sugar, citric acid, oxalic acid, chlorinated rubber and other materials dry.