What is the working principle of a fluidized bed vertical tube furnace?

The working principle of fluidized bed vertical tube furnace is mainly based on the fluidization characteristics of gas and its application in solid material heat treatment or sample processing. Let’s take a look at the specific working principle of the fluidized bed vertical tube furnace below!

Three commonly used fluidized bed vertical tube furnaces with three temperature zones (click on the image to view product details)

1. Gas fluidization characteristics
In a fluidized bed, gas passes through the tube bundle from bottom to top, and by controlling the flow rate and pressure of the gas, solid materials or sample particles form a flowing state within the tube bundle, known as a fluidized bed. In this state, the frictional force and eddy current between gas and solid particles keep the solid particles suspended, thereby increasing the contact area between gas and solid, improving the efficiency of heat treatment or the uniformity of sample processing.

2. Heat treatment process
Heat treatment process:
During heat treatment, materials and gases are introduced into the tube bundle.
By controlling the gas flow rate and pressure, powder or granular materials are formed in a fluidized bed within the tube bundle.
The sufficient contact between gas and solid particles promotes the contact surface of heat treatment and improves the efficiency of heat treatment.
Sample processing procedure:
In sample processing, such as heating, drying, cooling, or reaction, sample particles are placed in a fluidized bed.
When gas passes through a fluidized bed, it drives the flow of sample particles, achieving uniform heating or processing.
By controlling parameters such as gas flow rate, temperature, and pressure, the process can be accurately controlled and processed.

3. Advantages and Applications
The fluidized bed vertical tube furnace has multiple advantages, such as uniform heating, high heat transfer efficiency, and fast reaction speed. These advantages have led to the widespread application of fluidized bed vertical tube furnaces in various fields, such as chemical engineering, metallurgy, materials science, etc. In the field of chemical engineering, it can be used for processes such as catalyst regeneration, drying, and calcination; In the field of metallurgy, it can be used for processes such as preheating and reduction of ores; In the field of materials science, it can be used for sintering and heat treatment processes of materials such as ceramics and glass.

Experimental mini fluidized bed vertical tube furnace (click on the picture to view product details)

4.Summary
In general, the working principle of a fluidized bed vertical tube furnace is to achieve the flow and uniform heating or treatment of solid powder or sample particles through the fluidization characteristics of gas. This working principle makes fluidized bed vertical tube furnaces have broad application prospects and research value in multiple fields.Click to learn more tube furnaces! Or click on online customer service to learn more about product information!