Fluidized Spray Dryer, FSD - Special two-stage drying technology

• Small scale production and product development
• Special two-stage drying technology
• Integrated double chamber fluid bed incorporated in the chamber base
• Production of coarse, dustless powders
• Drying of heat sensitive and aromatic products
• Handling of sticky and hydroscopic products in a continuous operation '
• Three small scale plants sizes available: FSD-4.0, FSD-6.3 and FSD-12.5

MODE OF OPERATION
The feed is sprayed from the atomization nozzle mounted on top of the drying chamber into the drying air and down the spray chamber. The vigorous fluidization of moist powder in the fluid bed located at the chamber base, plus recycle of fines from the cyclone attachment, result in spray drying taking place in a powder-laden atmosphere.

Particles of higher moisture content can be handled in the drying chamber due to the resulting powdering effect overcoming the problems of powder stickiness. Drying can be completed at lower powder and exhaust air temperatures thus improving product quality while gaining from a higher thermal efficiency. The degree of agglomeration and thus the particle size distribution can be influenced by changing the operation conditions.