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Stationary Continuous Fluid Bed Dryers | Fluid Bed

Stationary bed dryer

The Bepex Fluid Bed drying system provides gentle handling in addition to efficient heat and mass transfer. Through direct contact of particles with fluidizing gas under controlled conditions, the Fluid Bed is suitable for use in drying, heating, cooling, and reacting applications. A stationary bed ensures that no dynamic loads are transferred to the material structure. Strict residence time and multiple zone temperature control make this a popular option as the drying or curing step in a wet agglomeration system.

HIGHLIGHTS

  • Suitable for drying heat-sensitive and fragile feed materials
  • Multi-zone designs allow for extended processing flexibility, including heating and cooling zones in a single unit
  • Operates in both continuous and batch modes
  • Narrow residence time distribution, ranging from minutes to hours
  • Quick access via hinged doors, access ports, and other customizable entry points
  • No moving parts mean minimal maintenance requirements

Typical Fluid Bed drying systems include the dryer, inlet and outlet fans, air heat exchangers, and an exhaust receiver with airlock. Sizing and recirculation systems are added to produce consistently sized product and eliminate material loss due to waste. Air flow, gas inlet and material temperatures are adjusted to provide the optimal amount of fluidization and heat transfer. Multiple zone design maintains a specific time and temperature material history.

Near plug flow operation with narrow residence time distribution provides consistent, continuous results. A typical three-zone unit for processing agglomerated material can employ high velocity and temperature gas (air) in the first zone to case harden and maintain individual agglomerate size and shape. Lower temperatures in the second zone provide complete curing. Chilled air is introduced into the third zone to provide adequate cooling of the material prior to downstream processing or packaging. Particle interaction and airflow provides elutriation of fines, ensuring that undesirable dust is separated, and made available for recycling back to the feed inlet.

The Fluid Bed dryer system is just one of the thermal technologies we employ to develop industrial process systems that meet your application requirements. At Bepex, we are committed to developing the best thermal process systems using the right technology. Between our proven industrial process equipment and decades of experience serving the industry, we are able to design a fluid bed dryer system that is right for you.

Develop a Thermal Process

Bepex has decades of experience in developing custom process systems centered around our Fluid Bed dryer. Contact us today to learn how we may be able to help you develop your process.

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