Static fluid bed

Static (non-shaking) fluidised bed or fluid bed (dryers and coolers) are used on free flowing fluidised bulk materials that have a narrow particle size distribution. The static fluid bed remains stationary during operation. Static fluid bed dryers can be continuous or batch operation and may be round or rectangular.
The other type of fluid bed dryer is a shaking fluid bed dryer or cooler, where the body of the dryer oscillates, assisting the movement of material through the unit and supporting the fluidisation […]

Erection of a TEMA Process Static Fluid Bed Batch Dryer. In a static fluid bed dryer, a specially designed perforated plate is used to keep the product in fluidization by upward moving amount (specific velocity) of air. A static Fluid bed dryer uses air to lift and maintain the feed in a fluidized state. The fluidization provides intimate contact between the product and the air stream results in a extremely efficient drying of the product.

Drying and cooling granules and powders in a static fluid bed: The static fluid bed dryers have no mechanical drive, which means they are lighter and also lower priced. A fluidised bed is a physical phenomenon occurring when a quantity of a solid particulate substance is placed under appropriate conditions to cause a solid/fluid mixture to behave as a fluid. This is usually achieved by the introduction of pressurized air through the particulate medium.