| 摘要 |
A centrifuge bowl (10) includes a flat base (16) and a generally conical peripheral wall (15) upstanding from the base. A jacket (25) surrounding the bowl allows injection of water from a chamber (28) between the bowl and the jacket through openings (34) in the peripheral wall into the bowl for fluidization of materials within the bowl. A feed duct (12) extends to the base and discharges feed materials onto the base for moving outwardly onto the peripheral wall and passing over the peripheral wall. A first portion (24a) of the peripheral wall is smooth, imperforate and frusto-conical. At the upper edge of the first portion is provided a pair of axially spaced recesses (24b, 24c) with injection openings at the base of the recesses for the fluidizing water. Heavier materials collect within the recesses and are discharged outwardly through a plurality of controlled discharged openings around the recesses. Lighter materials escape through the open mouth (17) of the bowl.
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