Fluid bed dryer systems

How do fluid bed dryer systems work?

A continuous fluid-bed system  is a machine in which a continuous flow of “wet” powder, granular or flakes material is conveyed over a perforated bed. Conveying of the product is done by means of a low-frequency, high amplitude shaker mechanism. The “Shaking” motion plug flow of the Tema fluid bed dryer, allows first-in, first-out drying of products and well-mixed fluidization, which covers the entire  spectrum and is able to accurately control the spread of residence time.

The fluid bed dryer system blows hot drying air through the holes of a perforated plate.  The wet particles are lifted from the bottom and cause the particles to behave as a fluid. The air velocity is adjusted to keep the moving layer of material fluidized.

Types of Fluid bed dryer systems

Shaking fluid bed dryer system

These are units for continuous operation and suitable for sticky materials with a wide particle size distribution. The shaking motion improves the fluidization and transport of any material within the fluid bed. Drying gas temperature up to 750 °C and product temperatures up to 400 °C are achieved.

Fluid bed dryer system

A fluid bed is an effective unit to thermally treat powders, crystalline products, pelletized or extruded materials. High heat and mass transfer are obtained as a result of the intimate contact between fluidizing air and product.

Static fluid bed dryer system

units in continuous and batch type for more uniform materials that do not tend to agglomerate. It is possible to install submerged heat exchangers in a deep static bed. With submerged heat exchangers energy input is both from the fluidizing air as well as from the heat exchangers reducing the size of the equipment and limiting the exhaust air volume.

Industries and examples where Fluid Bed Systems can be used for

The TEMA fluid bed systems can be used for all kind of thermal processes like : Drying, cooling, calcining, sterilizing, baking, puffing, roasting, cooking, blanching, steam stripping etc.

The TEMA Fluid Bed systems are used for drying and/or cooling of: