Decanter centrifuge incorporating airlift device
OwnerRobert E. Highinventor
Life of this patent
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Abstract
A decanter centrifuge which includes an annular bowl, a hollow tube on the axis of the bowl, and means for discharging from the bowl a first phase of an input sludge, the centrifuge being characterized by a fluid-activated airlift device which includes a discharge line radially supported from the hollow tube, and a fluid supply line 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.
Claims9
A decanter centrifuge for the separation and recovery from an input sludge of at least a light phase and a heavy phase material, comprising an annular bowl, a hollow tube extending axially through said bowl, means for discharging from at least one end of said bowl one of said material phases, and a fluid-activated airlift device supported by said hollow tube for collecting from within said bowl during operation of said centrifuge another of said material phases and conveying said other phase to discharge means, said airlift device including a first part supported by said hollow tube and extending radially therefrom into said bowl and a second part connected to receive a fluid supply from said hollow tube and being connected to introduce said fluid supply into said first part to activate said airlift device for collection of said other material phase.
Dependencies are inferred from the claim text.