Method and apparatus for effecting even distribution and mixing of high consistency pulp and treatment fluid

摘要

Method and apparatus for the continuous distribution and mixing of high concentration pulp with at least one treatment fluid such as chlorine or chlorine dioxide. An enclosed housing has a cylindrical portion, a closed conical wall portion extending inwardly from one end of the cylindrical portion, and a generally converging open conical portion extending outwardly from the other end of the cylindrical portion. High concentration pulp is introduced into the cylindrical portion of the housing, and a rapid circular movement is imparted thereto by rapidly rotating rotor transport blades, so that the pulp is essentially fluidized. Treatment fluid is added to the pulp through the cylindrical housing portion to generally form a layer over pulp rotating in the cylindrical housing portion. The circular movement of the pulp and treatment fluid is transformed into a whirling translational movement thereof as the pulp moves from the cylindrical portion of the housing through the open conical portion of the housing, and eventually out an opening at the termination of the open conical portion of the housing, and the pulp and treatment fluid are totally mixed by the time they exit from the housing for passage to another treatment station.