Screen basket for fiber suspensions and method for the productio

Details Screen basket for fiber suspensions and method for the productio Screen basket for fiber suspensions and method for the productio

1999-12-16

2000-10-17

Walsh, Donald P.

Classifying, separating, and assorting solids

Sifting

Elements

209405, 209407, 29515, 2989662, 295221, B07B 149

Patent

active

061317438

ABSTRACT:
A rotationally symmetrical screen for fiber suspensions with an inlet and outlet side, having a series of profiled bars which extend transversely to the circumferential direction of the screen, the cross-section of the profiled bars having a first end region facing away from the screen outlet side and a second end region facing away from the screen inlet side, and with metallic supporting rings lying in planes extending perpendicularly to the screen axis, each of the supporting rings having a series of cutouts open at their edge towards the screen inlet side, the shape of the cutouts corresponding to the configuration of the second cross-sectional end regions of the profiled bars lying in the cutouts, and forming an undercut in which a projection of the profiled bar cross section engages so that the profiled bars are held positively in a radial direction in relation to the screen axis and in the circumferential direction of the screen with their second cross-sectional end regions in the supporting ring cutouts; wherein the supporting rings are provided on the side of the profiled bars facing the screen outlet side with regions which are deformed such that as a result of a displacement of supporting ring material in the direction towards the screen inlet side, the profiled bar projections are pressed in this direction against the undercuts of the supporting ring outlets.

REFERENCES:
patent: 5090721 (1992-02-01), Lange
patent: 5234550 (1993-08-01), Ekholm et al.
patent: 5394600 (1995-03-01), Chen
patent: 5611399 (1997-03-01), Richard et al.

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