Disc stack, centrifugal sedimentation

Figure 8.4 Three common sedimenting centrifuge designs. A) Scroll discharge decanter, B) Tubular bond C) Disc stack, no solids discharge [Courtesy of Alpha Laval Separation Ltd.]...

Figure 1.12 Schematic representation of a nozzle discharge disc stack sedimenting centrifuge.

These rising channels also provide the entrance for the liquid mixture into the spaces between the discs. As centrifugal force separates the two liquids, the solids move outwards to the sediment holding space adjacent to the bowl wall. A channel is shown in Figure 7.8, which illustrates the operation of the disc stack by means of a cross-section through half of the stack, the axis of rotation being to the right of the section. 

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