Pressure screen with turbulence chamber means

Liquid purification or separation – Filter – With residue removing means or agitation of liquid

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Details

162343, 209273, 210414, 210415, 210435, 210512R, B01D 2102, B01D 2118, B01D 2532, B01D 3336

Patent

active

040439194

ABSTRACT:
Apparatus for separating a fibrous suspension of raw stock into acceptable stock and waste material in which an inlet at one end of a casing directs raw stock against a conical plate closing one end of a rotor in the housing and into an annular elongated inner chamber formed beween the imperforate peripheral wall of the rotor and a stationary cylindrical screen surrounding the rotor in the housing so that acceptable stock passes through the screen into an outer space from which it can be removed through a suitable outlet and waste material is directed by elongated angularly inclined ribs on the outer surface of the rotor wall into a turbulence chamber in which a radially extending rib on the other end of the rotor acts on the stock and from whence relatively light waste material is removed through a tangentially extending outlet at the top of the casing and relatively heavy material is removed through an outlet at the bottom of the casing and in which diluent water is introduced into the turbulence chamber through an inlet pipe in a direction generally tangenital to the stock flow and in the direction of the flow.

REFERENCES:
patent: 2902156 (1959-09-01), Dahlberg
patent: 3051233 (1962-08-01), Baxter
patent: 3387708 (1968-06-01), Salomon et al.
patent: 3456793 (1969-07-01), Salomon
patent: 3581893 (1971-06-01), Rich
patent: 3647067 (1972-03-01), Vogel
patent: 3735873 (1973-05-01), Bergstedt

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