Fluidized bed jet mill

Product Advantages

1. Particle size range (D50): 1-45 microns, with excellent sphericity and a narrow particle size distribution.
2. The pulverization process is accomplished through the collision of the materials themselves, resulting in fully autogenous grinding, high product purity, and minimal equipment wear.
3. Constant or low-temperature, media-free pulverization is particularly suitable for pulverizing heat-sensitive, low-melting-point, sugar-containing, and volatile materials.
4. Suitable for dry pulverization of various materials with a Mohs hardness of 9 or less, especially for pulverizing high-hardness, high-purity, and high-value-added materials.
5. The entire system features enclosed pulverization, resulting in low dust and noise levels, ensuring a clean and environmentally friendly production process.
6. The classifier rotor speed is variable-frequency controlled, facilitating flexible adjustment of the particle size distribution.
7. The control system is programmable and easy to operate.
8. Optional explosion-proof design and upgradeable to a nitrogen circulation system meet the ultrafine pulverization requirements of flammable, explosive, and oxidizable materials.

Working Principle

The airflow mill, along with a cyclone separator, dust collector, and induced draft fan, forms a complete pulverizing system. After being filtered and dried, compressed air is injected at high speed into the pulverizing chamber through a Laval nozzle. At the intersection of multiple high-pressure airflows, the material is repeatedly pulverized by collision, friction, and shearing. Driven by the fan's suction, the pulverized material is carried along the rising airflow to the classification zone. The powerful centrifugal force generated by the high-speed rotating classifying turbine separates the coarse and fine materials. Fine particles that meet the required particle size pass through the classifying wheel and are collected in the cyclone separator and dust collector, while the coarse particles descend to the pulverization zone for further pulverization.

Process flow chart:

Technical Specifications

Horizontal Type

Vertical Type