| 摘要 |
PURPOSE:To store solid impurities separated regardless of the viscosity of the solid in waste water through a hopper by reversing a screen in such a state that a liquid passage in which impurities separated from a liquid having impurities mixed therewith by the screen incorporated in the liquid passage flow is changed over or in a stop state. CONSTITUTION:Rails 11 supported in parallel to the surface of a screen 1 by fulcrums 12 are set to the outsides left and right with respect to the side surface having a screen 1 attached thereto of a bucket 2 in a left-and-right symmetric state and roll-shaped brushes 9 or scrapers are attached to the rails 11. The brushes 9 have a proper wt. and slide in contact with the surface of the screen 1 at the position where the bucket 2 is reversed and move to a reversing position while remove the impurities stuck to the surface of the screen 1 and, when the bucket 2 returns to a solid-liquid separation position, the brushes 9 return to the original position in the reverse process to correspond to the prevention of the trouble of clogging due to the impurities of the screen. |
