... , dust cleaner, blower, muffler, sound-proof room, crusher, bucket elevator, storage hopper, and vibrating feeder.2. The Working PrincipleAfter crushed by ... , the large materials become small ones and are sent to storage hopper by elevator, and then evenly sent to the upper ... bearing and each dial are driven by electromotor of main equipment through reducer, and all the grinding rollers are rolling in ...