Let’s first grasp what fluid bed dryers are in order to understand their importance. Although the majority of consumers have never heard of them, they have made a name for themselves in the area of bulk processing as reliable and multi-processor capable of finishing the essential operation. They are generally used for drying materials like granules, fertiliser, tablets, mixing of powder, agglomeration, drying of powders, etc., as their name would imply. They are well-liked in the manufacturing sectors, such as the chemical, food, pharmaceutical, dairy, and dyes ones.

Fluid Bed Equipment, also known as a fluidized bed dryer, operates on the fluidization concept. They are frequently used over rotary dryers to dry and chill a variety of materials.

Although there is no doubt that many sectors employ fluid bed dryers, the pharmaceutics sector is where they are most crucial. The system has been improved by replacing the old, time-consuming drying methods with this one. This prompted the industry to usher in the era of consistent drying. It’s employed to lower the amount of moisture in items and granules.

  • Fluid Bed Dryer Special Features

The food sector uses fluidized bed dryer equipment for food processing, food preservation, and dehydration, among other uses. It is used by the fertiliser industry to dry inorganic fertilisers like calcium-based fertilisers. The two primary varieties of fluidized bed dryer are. The first type is a continuous fluidized dryer, in which the material enters, is dried, and then is expelled without interfering with any other processes. The second method is batch drying, in which a predetermined quantity of product is fed into the drier at a time, the machine handles the drying, and the materials are released once the drying is complete. Although the continuous dryer offers better output rates, the batch fluidized bed drying machines are the most commonly used in the pharmaceutical industry.

Fluid Bed Dryer Parts:

Air Handling Unit (AHU), primary stainless steel tower, and exhaust system are the machine’s three main components. Fresh air is delivered into the rectangular-shaped container at one end, and it is connected to the dryer at the other, where it is filtered to remove contaminants. Airborne particles are eliminated by the main filter. Fine dust particles are dealt with by the secondary or post-filter. It is heated on the route to the dryer and finally passes through dehumidifiers.

Stainless Steel Main Tower:

A stainless steel tube carries the air from the Air Handling Unit (AHU) to the base of the main tower. The saturated material, which is often in the form of granules, is held in the product container and moved to the mobile trolley. A mesh screen with perforated holes serves as the product container, blocking airflow from the bottom chamber and holding the product in place. Additionally, it has filter bags that prevent particulates from being exhausted as well as an expansion chamber that makes up the central portion of the tower.

Exhaust Piping:

The device is made up of pipes that come out of the dryer and eventually form a vent that is connected to the blower. Additionally, it has onboard actuators that the control system uses to open and close the vent.


The optimum method for drying many materials is fluidization.