| 摘要 |
PURPOSE: Fine powders generated in coin production are washed by high rotation brushes environment friendly, reducing machine size and improving washing efficiency and coin productivity. CONSTITUTION: Cross section of coin is washed by a rotation of brushes(2) for washing coin(5). The brushes has a spiral structure. The coin is transferred by the rotation of brushes automatically. Rotation directions of the upper end and lower end of the coin are opposite, thereby rotating coin and washing the coin evenly.
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