Batch Powder Fluid Bed Dryer

The powder granule in fluid bed appears in the state of fluidization. It is preheated and mixed with clean and heated air.

Product description

1. Drug granulation and coating

2. Granulation: tablet granule, granule granule, capsule granule

3. Coating: granules, pill cover, color preparation, slow release, film, enteric coating

4. Food granulation and coating sugar, coffee, cocoa powder, cream, juice powder, amino acids, seasonings, puffed food

5. Pesticides, paints, pigments, dry powder, granules, blocks

Fluidized bed drying equipment has the following specific characteristics. The drying equipment is suitable for drying bulk materials without agglomeration.

The particle size range is 30um-6um. The drying equipment has simple structure and large production capacity, tens of thousands of kilograms per hour. 

Up to 400,000 kg; thermal efficiency is about 70%, used to remove moisture from materials, thermal efficiency is about 30%-50%, and the volumetric heat transfer coefficient can reach 2326-6978W/(m?.℃). 

The residence time of the material in the flowing fluidized bed is related to the structure of the fluidized bed. If the design is reasonable, the residence time of the material in the fluidized bed can be extended arbitrarily.

The disadvantage is that the hot air resistance through the distribution plate and the material layer is relatively large, usually about 490-1470Pa. The energy consumption of the blower is large. For single-layer fluidized bed drying equipment, the materials are completely mixed in the fluidized bed. 

Some materials from the feed port to the discharge port may short-circuit and fly directly to the outlet, causing uneven drying of the materials. 

In order to improve the uniformity of material drying in the fluidized bed, fluidized beds with different structures are usually used. Single-layer fluidized bed with baffle structure, horizontal multi-chamber fluidized bed, multi-layer fluidized bed, etc., can control material short circuit.

Powder Fluid Bed Dryer

Main parameter



Volume (L)


Amount to be treated (kg/per time)


Power of fan (kw)


Consume of steam 0.4MPa(kg/h)


Consume of compressed air   (m3/min)


Main features

1.By using powder granulation, to improve the liquidity and thinner dust.

2.By using powder granulation, to improve solubility property.

3.Mixing—granulation—drying can be finished in one device (one-step granulation)

4.To adopt antistatic filtering mediums, to ensure safe operation.

5.Caking agent atomizer adopts multi-fluid spray gun to maintain uniform spray particles and to increase the rate of qualified products greatly.

6.No dead-corner of equipment; it is easy and rapid of feeding or discharging materials and clean of washing to satisfy the GMP standard.

Powder Fluid Bed Dryer

Powder Fluid Bed Dryer

Powder Fluid Bed Dryer

Powder Fluid Bed Dryer

Powder Fluid Bed Dryer