This application relates to the field of material spheroidization
processing technology, and provides a spheroidization device. The spheroidization device is used to prepare fine-particle-size spheroidized material with a median particle size D50 of 4.0-10 μm. The spheroidization device includes a shell with a cavity, inside which are a grading component and a shaping component. The grading component separates the
tail powder from the spheroidized material; the
tail powder is discharged from the cavity, and the spheroidized material falls back to the shaping component. The shaping component includes a toothed ring and a rotatable
grinding disc structure with a gap between them. The rising
airflow at the gap transports the
tail powder and spheroidized material to the grading component. The
grinding disc structure includes a
grinding disc and a first grinding block located at its upper edge. The first grinding block has an arc surface on its windward side, extending radially along the grinding disc, with the rotation axis of the arc surface parallel to the extension direction of the first grinding block. This arc surface allows the material particles to undergo rolling grinding upon
impact, prolonging the
contact time and enhancing the
positive pressure airflow to partially counteract the rising
airflow, allowing the material to remain stably in the shaping area and improving the ability of fine particles to be spheroidized.