| 摘要 |
PURPOSE: A grain grinder is provided to reduce grain grinder time, minimize the grains bumped to outside, and obtain a minute grains. CONSTITUTION: A grain grinder comprises a frame, a hopper, crushing drum(40), inclining plate, and a driving motor. The front crushing drum has a first crushing roller(42) having a deviant groove on outer circumferential surface, and a second crushing roller(43) having a bigger diameter than the first crushing roller in turn on a first rotation axis(41). The rear crushing drum has a first rear crushing roller having a deviant groove on outer circumferential surface, and a second rear crushing roller having a bigger diameter than the first crushing roller in turn on the first rotation axis.
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