£ £ Materials go to mill from feeding hopper while it is working, further smashed, which is due to striking functions of high-speed rotation hammers, then further broken up because of rubbing. During this time, much thinner particles leak off from screen holes of mill sieves, while the thicker particles are crashed again which left on the surface of screen, up to leak off from screen holes of screen sieves. The leaked fine is sucked down the wind and sent to aggregating drum. The air stream with fine rotates in high speed in aggregating drum, then fine is thrown around drum for the function of centrifugal forth, gradually accumulated at the bottom of drum since the reduction of speed, flowing to bag from discharge gate; the air steam discharges from exhaust duct on the top, and the very small ash reflows to mill through feeding back tube, it is also allowed that link dust bag for collection of bug dust of materials on exhaust duct.

Structure Diagram£º