Classifying – separating – and assorting solids – Sifting – With liquid treatment
Patent
1984-08-01
1986-06-10
Chin, Peter
Classifying, separating, and assorting solids
Sifting
With liquid treatment
162 55, 209306, B07B 104
Patent
active
045941521
ABSTRACT:
An apparatus for treating a fibre suspension in a liquid to remove therefrom solid foreign particles. The apparatus has an inlet for receiving inflowing fibre suspension mixed with solid foreign particles; a first outlet for discharging part of the suspension liquid and said solid foreign particles; a screen positioned to define a filtering enclosure extending between said inlet and first outlet; a rotor disposed within said filtering enclosure for rotation therein to apply to the suspension fluidizing forces breaking up interlocked fibre flocs present therein and thereby fluidizing a part of said suspension to exit therefrom through said screen; and a second outlet communicating with the exterior of said screen to allow exit of fluidized suspension. The rotor has a plurality of radially extending blades supported by a central shaft, and the screen has a plurality of radially extending ribs inwardly directed to a predetermined clearance with said radially extending blades to thereby establish fluidizing forces acting upon the suspension.
REFERENCES:
patent: 2230647 (1941-02-01), Knight
patent: 3363759 (1968-01-01), Clarke-Pounder
patent: 3400820 (1968-09-01), Nelson
patent: 3411721 (1968-11-01), Delcellier
patent: 3499528 (1970-03-01), Salomon
patent: 3680696 (1972-08-01), Morin
patent: 4093506 (1978-06-01), Richter
patent: 4105543 (1978-08-01), Seifert
patent: 4155841 (1979-05-01), Chupka et al.
Chin Peter
Kamyr AB
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