| 摘要 |
PURPOSE: A drum screen is provided to improve the productivity per unit area by increasing the site efficiency, and to effectively filter sludge for improving the water quality of a fish farm. CONSTITUTION: A drum screen comprises the following: a rotation drum(100) with a screen mesh(102) for filtering sludge installed on the side, including an opening(101) for inflowing waste water; a center shaft(200) rotatably supporting the rotation drum; a drum driving unit(300); a supporting frame(400) installed in the inside of a water tub(800) storing filtered water passed through the screen mesh; a partition wall for secluding the waste water and the filtered water inside the water tub; a sealing plate(402) installed on the partition wall to be overlapped with an inner surface(103) of the opening; a spraying unit removing the sludge from the screen mesh; a sludge receiver(600); and a sludge discharging pipe(700).
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