Fluid Bed Dryer

Application & Process

Prism Fluid Bed Processing involves the fast drying, cooling, and agglomeration of particulate materials. It is ideal for heat-sensitive and non-heat-sensitive products in the pharmaceutical, nutraceutical, chemical, biochemical, food, and dairy industries.

The Prism Fluid Bed Dryer contains a bed of solid particles that are fluidized by passing a stream of air upward through a specially designed perforated sheet. The upward velocity of air is maintained to slightly lift the solid particles and set them in motion. This motion can be utilized to bring about mixing as well as forward movement of the solid particles. The air is heated, and the process of hot air evaporates the fluid and dries the solids.

The Prism Fluid Bed Dryer machine is designed with the correct volume of the bowl, and the air velocity, air direction, and the temperature of the clean inlet air are maintained throughout the fluidization, retarding, and expansion chambers, filtration area, pitch of the perforations of the plate at the bottom of the product container, and the leak-proof fluidization space by proper sealing, material of the filters, and process controls with electrical and pneumatics.

Uniform drying is achieved by exposing the full surface of every particle of the solid mass to the incoming high-velocity hot air. The equipment offers options for process parameters that are controlled by using the latest PLC controls with HMI touch screen, thus making the equipment operationally safe and eliminating the possibility of human error. The process consistency with batch records is maintained for every batch every time.

The Prism Fluid Bed Dryer machine can be fitted with an inbuilt CIP system that gives a thoroughly cleaned equipment for every batch, eliminating contamination of subsequent batches.

Salient Features

• Design is cGMP - Current Good Manufacturing Practices compliance.
• All contact parts AISI 316/316L & non contact parts AISI 304.
• Single piece construction with Integrated retarding expansion chamber cum filter bag housing.
• Pneumatic Sealing of Filter Bag and Product container by inflatable silicon gasket.
• Inlet Air Handling Unit with Air Filter (Pre, Fine & HEPA), Dehumidifier and Heat Exchanger.
• Exhaust air blower with dynamic balance fan and Filter chamber.
• Automatic Temperature controls for Inlet Air and Process cycle time controls.
• Auto pneumatic filter bag shacking system.
• Sampling pot on product container.
• Electric and Pneumatic controls panel.
• Solid flow detection System.

Safety Features

• Product Bowl interlocking mechanism.
• Automatic Temperature & controls, Process cycle controls.
• Explosion flap ensure at retarding chamber.
• Safe earthling system for static current.
• Air pressure switch installed to ensure pressure is in limit.
• Overload relay Protection and Emergency stop button.