Fluid Bed Processor (FBP), Fluid Bed Granulator and Coater

• Fluidized Bed Concept:
• • A fluidized bed is created by propelling hot air through an air distribution plate at the base of the container.
  • This hot air keeps the granules or particles suspended in an airy, fluidized state.
• Spray Techniques:
• • Top Spray:
  • • Ideal for wet granulation, coating, and drying.
    • The spray nozzle is positioned above the bed, spraying down onto the fluidized particles.
    • Suitable for coating large quantities of powders, crystals, or pellets.
• Bottom Spray (Wurster Fluid Bed):
• • Common in pharmaceuticals for drug layering and modifying drug release.
  • Hot air lifts particles, and the solution or suspension is sprayed onto the fluidized bed.
• Tangential Spray:
• • The nozzle is introduced at the side of the container.
  • Uses centrifugal, lifting, and gravitational forces for mixing and granulation.

Components of FBP

• Granulation Chamber:
• • Base part.
  • Movable parts: Top, bottom, and tangential spray.
  • Expansion chamber.
  • Expansion chamber.
• Exhaust Air Handling Unit:
• • Stainless Steel 304 Impulse Back Blow Dust Collection.
  • Stainless Steel 304 Impulse Back Blow Dust Collection.
  • Differential Pressure Meter.
  • Exhaust Air Recycling (optional).
  • Anti-static polyester cartridge filtration (cleanable with compressed air or water).
• Air Handling Unit (AHU):
• • Inlet Air Handling Unit:
  • • Pre-filter G4.
    • Intermediate Filter F8.
    • Wheel dehumidification.
    • Wheel dehumidification.
    • Wheel dehumidification.
    • Final Filter H13.
    • Temperature & Humidity Sensor.

Fluid Bed Granulator & Coater Process Parameters

• Inlet Temperature: Affects drying; high temperatures may cause static charges and affect granule size.
• Atomization: Atomization air pressure affects the coating solution spray on the fluidized bed.
• Blower Speed: Influences attrition and fines generation; proper bubbling is essential for uniform coating.
• Partition Column/Air Distribution Plate: Height is based on particle size and desired velocity for coating.
• Spray Rate/Pump: Determined by drying capacity and air distribution plate area; a peristaltic pump ensures a constant spray rate.
• Relative Humidity: Impacts sticking, lump formation, and static charges.
• Strength of Coating Solution: Affects nozzle blockage; should be balanced to avoid high viscosity or dilution.

SHREE BHAGWATI specializes in manufacturing a range of Fluid Bed Equipment (FBE) designed for diverse applications, including drying, granulation, and coating of particulate materials. Their equipment supports varying batch sizes and processing needs, catering to multiple industries.

Fluid Bed Processor (FBP) Product Range and Capabilities

• Fluid Bed Dryer (FBD):
• • Batch Sizes: From 0.5 kg to 1000 kg.
  • Applications: Wet powder drying, powder agglomeration.
  • Features:
  • • Inlet air handling unit with filtration classes 7 & 13.
    • Dehumidification and heat exchanger for controlled drying conditions.
• Fluid Bed Granulator:
• • System: Top spray arrangement.
  • Applications: Granulation of powders.
  • Features: Efficient granulation through top spray system, ensuring uniform granule formation.
• Fluid Bed Granulator:
• • System: Top spray arrangement.
  • Applications: Granulation of powders.
  • Features: Efficient granulation through top spray system, ensuring uniform granule formation.
• Fluid Bed Coater:
• • System: Bottom spray (Wurster coater arrangement),
  • Applications: Coating of pellets and granules.
  • Features: Effective coating with precise control over coating thickness and uniformity.
• Fluid Bed Processor and Fluid Bed Pellets Coater :
• • Available Models: Lab scale, Pilot batch, and Large batch size.
  • Applications: Comprehensive processing including drying, cooling, agglomeration, granulation, and coating.