Patent ID: 6156159
Filing Date: 2000-12-05
Classification: B01F,D21C,Y10S

Abstract:
A device for mixing fluid into a pulp suspension of cellulose-containing fibre material, comprising:a pulp inlet for the pulp suspension;a pulp outlet for fully treated pulp mixture; anda reaction section located in between the pulp inlet and the pulp outlet, the reaction section comprising a stator shell, a rotor coaxial with the stator shell, an annular gap defined between the rotor and the cylindrical shell, and at least one fluid inlet;wherein said fluid is located in close proximity to a common central axis of the rotor and the stator shell in such a manner that the fluid is supplied substantially into the center of rotation of the rotating pulp suspension and the pulp and fluid thereafter passing in a radial direction by radially directed openings in the rotor to the annular gap,whereby an intensive mixing takes place in the annular channel, by projecting flow-effecting elements provided at the rotor,whereafter finished pulp mixture is fed out in a tangentially direction to the stator shell after having passed the annular channel.