| 摘要 |
The invention refers to a decanter centrifuge particularly for sludge centrifugation, incorporating a drum (1), a rotor (12) arranged therein and equipped with a helical screw (14) for feed of sludge, a sludge outlet and a reject outlet (11, 5) and a flush washing device (16) for washing (flushing) in countercurrent to the dewatered sludge. In the rotor (12) in close connection to the blades (15) of the helical screw (14) are provided a number of threaded holes for connection of the nozzles (17) of the flush washing device (16). In response to the washing requirement, certain or entire groups of threaded holes are closable by means of sealing plugs (23), so that the washing (flushing) can be effected in several consecutive steps with portions without flushing inbetween.
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