Fluid bed dryer

Introduction

Fluid bed dryer are excellent for producing dry powder from solutions, suspensions, and slurries in a single step of operation. This process is carried out quickly and at a temperature that is controlled to guarantee effectiveness. This method can be applied in a wide range of industries. It is helpful in many different processes, including those that include dyes, food, pharmaceuticals, and the chemical industry.

Working Principle

Here is an explanation of the fundamental idea that drives fluid bed dryer operation. An upward flow of air is permitted through a bed of solid powdered material. This resulted in a velocity that is greater than the total particle setting rate. All of the solid particles will be blasted up and suspended in an air stream when this occurs.

Thus, the solid bed is transformed into the fluidized condition, which is a boiling liquid. The process of fluidizing the bed can then be aided by the use of hot air. This quickens the process of the material drying.

This device comprises of a stainless steel bowl-shaped chamber with a detachable perforated bottom. You must put everything that has to be dried in this basin. The heaters heat the air to a certain temperature once it is introduced from the bottom of a bowl.

The material bed is passed through after the air has been purified with the aid of a filter. The equipment’s top-mounted fans are what create the continual airflow. A control panel is used to alter every aspect of the machine, including the operating temperature and flow rate.

The rapid drying of the material makes this machine famous for its high drying rate. It is always permitted for the materials to be in a free-flowing state. The bags employed in this case have a finger-like shape that helps expand the drying bed’s surface area. During the fluid bed drying process, this kind of design aids in accelerating drying and cutting down on drying time

Typical Uses for Fluid Bed Dryers

Several powders are helpful in the pharmaceutical sector, but they perform poorly in other applications because of their unevenness, flow, and loose packing. Granulation is the process of combining several source powder ingredients to create larger, more uniform granules with a higher density.

The utility of the fluid bed drier comes into play here. To ensure that processes like drying, mixing, finishing, granulation, and cooling are accomplished during the same cycle, it is possible to combine an it with a granulation system.

As a result, the pharmaceutical sector has grown to rely heavily on fluid bed drying technology, which is quickly taking the place of more conventional trays-based drying techniques. As a result, drying duration’s have been shortened and drying conditions have been kept uniform.