Core working principle: multi-stage crushing, stone on stone & stone on iron The vertical shaft compound crusher cleverly combines multiple crushing principles to achieve an efficient and energy-saving crushing process: Material free fall feeding: Material falls vertically from the top feed port into the center of the high-speed rotating rotor. Rotor accelerated ejection: The material distribution cone on the rotor evenly distributes the material to each flow channel.
The material is accelerated to a very high linear speed (usually 60-85 m/s) by the wear-resistant ejection head in the flow channel and violently ejected along the tangential direction of the rotor.
First stage crushing – rock on rock: The high-speed thrown materials first hit the free-falling material lining in the eddy current crushing chamber (“rock on rock”). The violent impact and collision cause the materials to break against each other, significantly reducing the wear of wear-resistant parts.
Second stage crushing – rock hitting iron: The materials not crushed by the first stage and the materials that rebound hit the surrounding guard plate or impact block at high speed (“rock hitting iron”), resulting in further impact crushing.
The third stage of crushing – material impact: A strong vortex airflow is formed in the crushing chamber, and the materials collide, rub and grind against each other many times in the chamber to achieve finer crushing.
Finished product discharge: The material that meets the particle size requirements is discharged from the bottom discharge port. The particle size can be controlled by adjusting the rotor speed, feed amount, gap between the impact block (or peripheral guard plate) and the end of the throwing head, etc.