| 摘要 |
A system for unloading of a powdery cargo (14) from a ship (50) is described, where the ship comprises one or more cargo holds (10) with a bottom (12) of the cargo hold which tapers toward a central point in the cargo hold (10) and also a fluidisation arrangement for fluidising the powdery cargo (14) in the cargo hold (10), such that the cargo flows towards said central point in the cargo hold, in that a pneumatic unloading pump (16) is arranged in or adjacent the central point in the cargo hold (10) at least partially under the bottom (12) of the cargo hold and that the unloading pump (16) is set up to directly receive the fluidised powdery cargo (14). The unloading pump is a pressure tank pump, where the side wall (20) of the pump (16) comprises at least one inlet (18) for the powdery cargo (14), at a height which, in the main, corresponds to the flow direction of the powdery cargo (14), by means of which the powdery cargo (14), with the help of gravitational forces, flows into the pump (16) and fills the pump almost completely or to a level corresponding to that of the cargo hold, and that the pump (16), after filling, is arranged to be pressurised to blow said cargo (14) ashore. |
