| 摘要 |
A centrifugal separator with substantially continuous discharge of the concentrate comprises a centrifuge drum (10) with axially spaced rings (24) projecting inwardly from the peripheral wall (15) of the drum. The material between the rings (24) is fluidized by injection of water (29, 34). Each channel between the rings (24) has a number of exit openings (40) at the base of the channel for discharge of the concentrate. Each exit opening (40) includes a pinch valve (50) to restrict the discharged to predetermined time periods. Each exit (40) includes injection openings (83) around the exit for injecting water to replace the material discharged to maintain the fluidization between the channel.
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