STATIC FLUIDIZED BED
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STATIC FLUIDIZED BED PRINCIPLE The fluidization is a state of dynamic balance of a divided solid in an ascending moving gas. It confers hydraulic properties to solids (angle of repose equal to zero, easy spreading, total filling of a receiver in which the product is fluidized). Such method of bringing in contact a solid with a gas, allows high mass and heat transfers. Mechanical energy transferred by gas to the particles is low enough to prevent attrition. Crystals for instance will remain bright and will keep sharp edges. ADVANTAGES OF THIS TECHNOLOGY Controlled residence time allowing uniform treatment Low attrition of particles High thermal efficiency P reservation of physical and biological properties of fragile products Simple and robust equipment (no mechanical device) Low maintenance Easy cleaning Multiple processing in one single equipment P ossibility to process under controlled atmosphere in a closed loop (i.e. nitrogen, hydrogen, etc.) A djustable fines removal ratio Static fluidized bed with internal heat exchangers MAIN APPLICATIONS MAIN PROCESSES PILOT TEST LABORATORY All kind of powders, crystals, beads, granules for all industries (chemical, food, mineral, etc). Drying, cooling, calcining, reaction, roasting, reduction, dehydration, solvant removal, etc. For determination of fluid bed parameters and possibility to perform semi industrial tests or rental of a complete pilot unit. 101, rue du Rhin-Napoléon 67100 STRASBOURG FRANCE

can propose different types of fluidized beds STATIC FLUIDIZED BED The standard static fluidized bed is composed of a plenum for gas injection, a fluidization plate for a homogeneous air distribution and a hood for product conveying and gas exhaust. Fluidization plate may be from different types : perforated sheets, porous metal, oriented air jet, nozzles, or other type depending on processes and applications. The plenum chamber is generally subdivided into several sections to provide the optimum fluidization velocity at each stage of processing. The temperature of the processing gas can be...