| 摘要 |
PROBLEM TO BE SOLVED: To provide a sludge scraping-up device capable of preventing colliding of a slide plate or an endless chain and a structure.SOLUTION: A sludge scraping-up device 10 is provided in a precipitation pond 1 having a trough 32 positioned under a water surface in a lower end part and precipitating sludge included in received water in a pond bottom part 1d, and scrapes up the sludge precipitated in the pond bottom part 1d by a flight plate 12 extending in the pond width direction, and comprises a regulation shaft 20 and a groove part 201a for regulating a rocking range of a protective rail 18, and these regulation shaft 20 and groove part 201a regulate rocking of the protective rail 18 in a range separated from the trough 32 even if the protective rail 18 is pushed back by the flight plate 12.SELECTED DRAWING: Figure 4 |
