| 摘要 |
Apparatus for cleaning the floor 11 of a tank e.g. a sludge settling tank comprises a suction/jet unit 13 connected to a suction pump 22 via pipes 15, 16, 19 and catch-pot 20, the jets being derived by flow of liquid through nozzles 26 when the suction pump is operated. Ponds and silos many also be cleaned by such apparatus. <IMAGE> |
