Airflow comminution is one of the most commonly used ultra-fine comminution methods. It is widely used in ultra-fine comminution or fine comminution of materials in non-metallic minerals, pharmaceuticals, chemicals, metallurgy and other industries. It has the characteristics of fine product particle size, narrow particle size distribution, smooth particle surface, regular particles, high purity and high activity.
The working principle of the airflow crusher is that after cooling, filtering and drying, the compressed air forms a supersonic airflow through the nozzle and is injected into the rotary crushing chamber to fluidize the materials. In the rotary crushing chamber, the accelerated materials converge at the intersection of the jet airflow of several nozzles to produce violent collision, friction and shear, so as to achieve the purpose of ultra-fine crushing of particles.
The crushed materials are transported to the impeller classification area by the rising air flow to realize the separation of coarse and fine powder under the action of the centrifugal force of the classification wheel and the suction force of the fan. The coarse powder returns to the crushing chamber according to its own gravity to continue crushing. The qualified fine powder enters the cyclone collector with the air flow, the fine dust is collected by the bag dust collector, and the purified gas is discharged by the induced draft fan.