| 摘要 |
PURPOSE:To provide an apparatus capable of easily removing shellfish attached to the wall of an inlet channel, etc., by blasting high-pressure water against the shellfish. CONSTITUTION:A frame 2 is pulled toward the upstream side of a water channel while extending an extendable cylinder 31 of a guide wheel mechanism 3 attached to the frame 2. High-pressure water streams are ejected from plural nozzles 53 of a high-pressure nozzle mechanism 5 against the wall surface of the water channel while moving the frame to the upstream side to remove the shellfish attached to the wall surface of the water channel. Power generated by a propeller water-turbine 41 of a nozzle-shifting mechanism 4 is transmitted to the high-pressure nozzle mechanism 5 via a rotation transmission part 42 to reciprocate the high-pressure nozzle mechanism 5 ejecting the high-pressure water and treat the whole surface of the water channel wall with the high- pressure water stream. |
