Bi-directional rotor and stator in a vortical circulation

Details Bi-directional rotor and stator in a vortical circulation Bi-directional rotor and stator in a vortical circulation

D - Textiles, Paper

21

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92/39

D21D 1/00 (2006.01) D21B 1/34 (2006.01) D21D 5/00 (2006.01)

Patent

CA 1215258

ABSTRACT OF THE DISCLOSURE A vortical circulation pulper, of the type designed to pulp difficult to defiber stock, and having a rotor revolving within a stator, in one wall of a pulp container, to circulate a charge in a path within the con- tainer a rotor/stator, stock reduction, interface alongside the path for re- ducing the size of chunks to smaller pieces and a rotor/stator stock attrition interface in rear of said stock reduction interface on the path to receive and defiber said smaller pieces is provided with a bi-directional rotor and a bi- directional stator, both having symmetrical, generally, isosceles triangle shaped peaks and valleys therearound. Rotation of the rotor can thus be reversed when its stock reduction edges wear down and such reverse rotation, resharpens the worn edges.

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