The phenomenon of particle size is often difficult to control after using ultra -micro crushing machines, which gives us a major problem. When selecting the device, according to the condition of the material, a device that combines crushing and classification.
The airflow grading machine
[ 123] The material first enters the gravity hierarchical zone from the feeding device. The thick particles fall, the fine particles rises with the air flow, the gravity and the fluid buoyant play mainly, complete the first grading; then, the material enters the free grading zone, and the rotation airflow is performed as a circular motion with the circular motion. The large particles were thrown to the inner wall, and the small particles rose with the air flow. The centrifugal force and gravity played the main role and completed the second hierarchy. The particles were thrown out of the hierarchical wheel, and the centrifugal force played the main role with the fluid resistance and completed the grading.
The airflow classifier
is based on the effects of different particle size particles in the gas (usually use air). Different motion trajectories are produced by centrifugal force, gravity, and inertia, thereby achieving the grading of different particle size particles. The airflow classifier can be divided into static classifiers and dynamic grading machines according to whether it has motion components.