A rapid dryer (also known as a fbd fluid bed dryer) is a piece of process equipment that is widely used to decrease the moisture content of a variety of products such as food, pharmaceuticals, and chemical powders and granules, among others.

1. What Is a Rapid Dryer, And How
Does It Work? What Is Its
Purpose?

2. Why would you use a rapid dryer?
• A rapid dryer (also known as a fbd fluid bed dryer) is a piece of
process equipment that is widely used to decrease the moisture
content of a variety of products such as food, pharmaceuticals, and
chemical powders and granules, among others.
• Drying periods for medicinal components larger than 50 microns,
which are frequently utilized in tablets and capsules, may be greatly
reduced with this equipment.

3. Why would you use a rapid dryer?
• Active Pharmaceutical Ingredients (APIs) have traditionally been dried
using trays and vacuum dryers.
• In both the Tray Dryer and the Vacuum Dryer, the insulated tray
chambers are stacked on top of each other. Trays are used to hold the
material that is to be dried. Tray dryers use hot air circulated by
electric heaters and blowers to guarantee efficient heat transmission.

4. Why would you use a rapid dryer?
• In a vacuum dryer, steam is transported through the annular space
between a jacket and the vessel walls at a pressure lower than that of
atmospheric pressure.
• Despite their efficiency, in theory, manual and semi-mechanical
drying methods increase the time it takes to produce a batch.
Because of this, the factory's capability for output has been reduced
in the long run. Dryers that use traditional technology have a longer
downtime for maintenance and administration.

5. Why would you use a rapid dryer?
• A rapid dryer, on the other hand, employs fluidization in which the
material is transformed from a solid-state to a fluid state.
• A rapid dryer consists of a stainless-steel chamber with a removable
perforated bottom, known as the bowl, that can be removed and
cleaned. A continuous stream of air is used to lift and suspend the
sludge. During the subsequent heat transfer, the moisture is
vaporized and solid particles are now ready for further processing.

6. The Benefits of Using a rapid dryer
• Rapid dryers are critical in the production of homogeneous dried
material output because fluidization results in a high rate of moisture
removal from the material being processed.
• Because FBDs have reduced operating and maintenance expenses, as
well as less human resources, they are more cost-effective to run and
clean. As a result, smooth automation may eliminate the need for
human monitoring.

7. The Benefits of Using a rapid dryer
• Rapid dryers used in flexible manufacturing need batch sizes and controls that
may be tailored to meet the needs of the process. Varying chemical
compounds release moisture at varied temperatures and relative humidity
levels until they reach their maximum permissible temperature, and they dry
at different rates depending on the chemical component in question.
• To guarantee that, characteristics like airflow and feed rate must be totally
adjustable by the operator in order to get the desired result. Airflow and
humidity control are provided by rapid dryers, which are used in the drying of
temperature-sensitive products.
• Nevertheless, rapid dryers aren't suited for sticky semisolid drying mediums
since they need unrestricted mobility of particles. The use of conventional
dryers is suitable in this situation since sticky things may be dried quickly.

8. Rapid dryers Have a Wide Range of Applications
• Rapid dryers are used extensively in the pharmaceutical business,
which is unquestionably their most important use. A long time ago,
this automated mechanism was used to replace traditional drying
trays in the powder processing area of the industrial sector.
• Fluid bed dryer granulator are used for spray granulation, which
converts water-containing solutions, pastes, suspensions, or melts
into granules without contaminating the product or contaminating
the environment.

9. Rapid dryers Have a Wide Range of Applications
• Dried materials are difficult to carry owing to their loose packing,
which makes the process of agglomeration, which is the collection of
fine materials into cohesive units such as pellets or granules, very
beneficial. The logistics of shipping and distribution are made simpler
as a result of this procedure.
• Powder layer coating utilizing a tangential roto granulator to produce
mini-tablets and capsules is accomplished with the help of rapid
dryers. Patients may readily take polymer-coated pills and capsules
since they are not coated with a polymer. While this is going on, a
fluid bed drier is drying the pellets that will be utilized in the OSDs
stacking process. Frequently, the applied layers are substantially
thicker than the surrounding layers, necessitating careful control over
the density of the powder utilized.

10. The drying methods of rapid dryers are also widely
used in sectors such as:
• Chemical
• Pharmaceutical
• Dyes
• Food
• Dairy
• Metallurgical

11. Conclusion
• Rapid dryers are a cost-effective alternative for drying materials
gently and consistently.
• In order to improve the precision of velocity and temperature via
precise control of process parameters, rapid dryer manufacturers
have integrated cutting-edge technology and applied research.