| 摘要 |
<p>A decanter centrifuge which includes an annular bowl (7), a hollow tube (20) on the axis of the bowl, and means (23) for discharging from the bowl a first phase of an input sludge (15), the centrifuge being characterised by a fluid-activated airlift device (27) which includes a discharge line (30) radially supported from the hollow tube, and a fluid supply line (28, 28A) for conveying fluid from within the hollow tube to an outer end portion of the discharge line to effect removal from the bowl through said line of another phase of the sludge.</p> |
