| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an impurity removing screen device capable of preventing that impurities transported to the most upper part of fixed screen members fall down as a lump.SOLUTION: A raw sludge impurity removing screen device 6 moves impurities in sewage which seal a gap on a screen 60 to upper side at upstream side of the screen 60 and makes the impurities fall at downstream side. The screen 60 comprises: a pair of fixed screen members 61 respectively arranged in a manner where a fixed highest part 612 projects from water surface of the received sewage; and a movable screen member 62 moving between the pair of fixed screen members 61 so as to moves the impurity to the fixed highest part 612. In addition, it is installed a fluid supplying member 63 preventing accumulation of the impurity transported to the fixed highest part 612 on the fixed highest part 612.</p> |
