| 摘要 |
The invention relates to a dewatering device comprising a drum screen arranged for rotational movement inside a housing, means arranged to supply medium to be dewatered, means to remove from the drum screen interior material retained therein, and means for removal of water passing through the drum screen. In accordance with the invention the drum screen is formed with a number of axial carrier protrusions and the devices for removal of material retained inside the drum screen (2) consist of an upwardly open material discharge duct extending the lengthwise direction of the drum screen at the upper part thereof for reception, upon rotation of the drum screen, of material lifted by said carrier protrusions, in addition to which means are provided above the material discharge duct (16) for flushing thereof from the exterior of the drum screen.
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