| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collection device capable of preventing a fall of a lift body, capable of smoothly lifting and lowering the lift body, and capable of maintaining a state in which a rake attached to the lift body is separated from a screen under water even on the condition that flow velocity is high.SOLUTION: A dust collection device 1 includes a moving member 4, a lifting member 5, a rake 6, a holding member 7, an operation mechanism 8 and a driving device 9. The moving member 4 is movably held at least by guide rails 21 and 22, the lifting member 5 is a single rod-like body, and the rake 6 is attached to an end thereof. A lattice-like portion 64 of the rake 6 is curved. The rake 6 is pulled to a direction separating from a screen by a wire 93 extending from the driving device 9.SELECTED DRAWING: Figure 5 |
