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 stirring and crushing drying chamber from the bottom of the dryer at a certain speed through the air inlet, exerting strong shearing, blowing, and rotating effects on the material. As a result, the material is micronized through centrifugal force, shearing, collision, and friction, enhancing 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 phases, 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 between them. 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 special 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 vanes, allowing adjustable and controllable material fineness and final moisture content.

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