| 摘要 |
An account is given of a method and means of carrying off contaminated, particulate solid materials such as drill cuttings from a seabed location. This is done through a hose/pipeline (16, 18) running from a mound (14) of said materials on the seabed (10) to a surface location, where a suction effect is created at the lower materials suction end of the hose/pipeline (16, 18) by a transport liquid being injected in the intended transport direction of said materials, and where the hose/pipeline (16, 18) at a somewhat higher level is connected to a feed hose (28) for compressed gas that, upon upward flow in the hose/pipeline (16, 18), pulls the mixture of transport liquid and particulate solid materials along. The mixture is fed out of the hose/pipeline (16, 18) and ends in a tank (22) in which the solid particles are separated from said mixture, the liquid fraction of which - the transport liquid - is recycled while contaminated from its contact with contaminated materials, by first being fed to the suction end opening of the hose/pipeline (16, 18) and then continuing to flow in the essentially vertically oriented loop of the means. |
