Mixing apparatus, particularly for mixing of bleaching agents into cellulosic pulp

Claim 1

MIXING APPARATUS COMPRISING A CASING HAVING A GENERALLY CYLINDRICAL SHELL AND MEANS DEFINING A CASING END WALL, SAID END WALL EXTENDING GENERALLY OBLIQUELY TO THE LONGITUDINAL AXIS OF SAID SHELL; A ROTATABE AGITATOR ENCLOSED IN SAID CASING NEAR SAID END WALL AND EXTENDING LONGITUDINALLY THEREIN, THE AGITATOR INCLUDING AT LEAST ONE DISK-LIKE PORTION AND MEANS DEFINING PROJECTIONS ON SAID DISK-LIKE PORTION EXTENDING FROM ONE FACE THEREOF TOWARD SAID OBLIQUE END WALL A SUBSTANTIAL PORTION OF THE DISTANCE BETWEEN SAID DISK-LIKE PORTION AND SAID OBLIQUE END WALL, SAID DISK-LIKE PORTION HAVING THE PERIPHERY THEREOF GENERALLY ADJACENT SAID CYLINDRICAL SHELL AND SAID DISK-LIKE PORTION INCLUDING MEANS DEFINING AT LEAST ONE APERTURE COMMUNICATING BETWEEN THE FACES OF SAID DISK-LIKE PORTION, INLET MEANS FOR SUPPLYING MATERIAL TO BE MIXED TO SAID CASING ECCENTRICALLY THEREOF BETWEEN SAID OBLIQUE END WALL AND SAID DISK-LIKE PORTION; WHEREBY MATERIAL TO BE MIXED, SUPPLIED THROUGH SAID INLET, IS ENGAGED BY SAID PROJECTIONS AND ROTATED BY SAID AGITATOR, SAID MATERIAL BEING PULSATED BACK AND FORTH THROUGH SAID APERTURE BY THE INTERACTION OF SAID AGITATOR AND SAID OBLIQUE END WALL.