| 摘要 |
PROBLEM TO BE SOLVED: To provide a polishing machine removing a sharp part of aggregate without reducing a particle diameter of the aggregate and capable of removing a deposited substance on the aggregate. SOLUTION: The polishing machine comprises a drum body; an aggregate throwing port provided on one end upper surface of the drum body; an aggregate discharge port provided at the other end of the drum body; a rotation shaft penetrating through the drum body along a central axis of the drum body; a driving motor rotating the rotation shaft; a fixed staying plate for dividing a lower part of the inside of the drum body and forming a plurality of polishing spaces; a staying adjustment plate mounted to the fixed staying plate and adjusting a staying time of the aggregate in the respective polishing spaces; and a polishing impeller extending from the rotation shaft at a right angle relative to a rotation axis of the rotation shaft. The polishing impeller has an arm part curved in an arch-like shape and extending at a right angle relative to the rotation axis and a tip part bent at a right angle relative to the arm part. At least one polishing impeller is arranged in the polishing space. COPYRIGHT: (C)2005,JPO&NCIPI
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