Filtrate discharge accelerator system for center valve filter dr

Details Filtrate discharge accelerator system for center valve filter dr Filtrate discharge accelerator system for center valve filter dr

1985-12-23

1987-07-14

Fisher, Richard V.

Liquid purification or separation

Filtrate splash plate and/or deflector

210404, 162335, B01D 3306

Patent

active

046801154

ABSTRACT:
A center valve rotary drum filter includes radially disposed baffles or vanes which extend in the center valve opening from axial surface channels to a central drainage conduit. The baffles provide channels in the center valve opening which collect, direct, and accelerate filtrate flow toward the drainage conduit thereby improving the overall operating efficiency of the filter. The center valve rotary drum filter further includes a curved flow passage between the flow-confining walls. This flow passage is curved toward the central axis of the drainage conduit for directing filtrate flow to the drainage conduit. In a preferred case, the curved flow passage comprises a concavely curved, cone-like member having a broad proximal base and a narrow distal end. The base end is directed toward the one of the radial flow-confining walls opposite the entrance to the drainage conduit, the distal end being directed toward the central axis of the drainage conduit.

REFERENCES:
patent: 770307 (1904-09-01), Parker
patent: 2537414 (1951-01-01), Lindblad
patent: 2998883 (1961-09-01), Rich
patent: 3125514 (1964-03-01), Frykhult
patent: 3150083 (1964-09-01), Luthi
patent: 3305439 (1967-02-01), Siegel
patent: 3306457 (1967-02-01), Putnam
patent: 3794178 (1974-02-01), Luthi
patent: 4154687 (1979-05-01), LaValley
Handbook for Pulp and Paper Technologists, G. A. Smook, Canadian Pulp and Paper Association, Montreal, Quebec, 1982, p. 111.

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