I. Equipment Overview

The flash dryer is primarily used for drying block-shaped, filter cake-shaped, powdered, and granular materials. It is a high-efficiency, energy-saving drying equipment developed by our company.

Hot air enters the drying chamber from the bottom inlet at a certain speed, exerting strong shear, flotation, and rotational effects on the material. As a result, the material undergoes centrifugal force, shear, collision, and friction, leading to micronization and enhanced mass and heat transfer. At the bottom of the dryer, larger and wetter particle agglomerates are mechanically broken up by the stirrer. Particles with lower moisture content and smaller particle size are carried upward by the rotating airflow, undergoing further drying during the ascent. Due to the rotational flow of the gas-solid phase, the inertia of the solid phase is greater than that of the gas phase, resulting in a relatively high relative velocity between the two phases, which intensifies the heat transfer effect. Therefore, this machine has a high drying intensity.

II. Equipment Features

1. Multiple feeding devices are available for selection, ensuring continuous and stable feeding without bridging phenomena.

2. A special cooling device is installed at the bottom of the dryer to prevent material deterioration in the high-temperature zone.

3. Special air pressure sealing devices and bearing cooling devices effectively extend the service life of the transmission parts.

4. A unique air distribution device reduces equipment resistance and balances the wind speed inside the tower.

5. The drying chamber is equipped with a grading ring and swirl plates, allowing adjustable and controllable material fineness and final moisture content.

6. The high circumferential air speed in the drying chamber shortens the material residence time, effectively preventing material wall adhesion and deterioration of heat-sensitive materials.