The composite crusher applies to the crushing process of natural graphite.Natural graphite falls vertically from the upper part ofthe machine into ahigh-speed rotating impeller, under the action ofhigh-speed centrifugalforce,it colides and crushes at hizh speed with another pat ofthe materiathat is distributed in a state around the impeller. After the materials collide with each other,they willform vortices between the impeller and theiasing and colide and rub against each other multiple times to crush them., They are discharged directly from the lower part, forming a closed loopwith multiple cycles, and controlled by screening equipment to achieve the particle size of product.