| 摘要 |
An apparatus for separating relatively light fractions from relatively dense fra ctions in a pulp suspension. The apparatus has a tubular housing of circular cross section defin ing a separation chamber extending longitudinally from an inlet end to an outlet end, with an inl et at the inlet end for tangentially introducing a flow of the pulp suspension into the housing for vort ical flow along the length of the separation chamber towards the outlet. The vortical flow effects a separation of the relatively light fraction from the relatively dense fraction. The housing has a t least two outlets at the outlet end, one outlet being positioned to accommodate an exiting flow of the re latively light fraction and the other outlet being positioned to accommodate an exiting flow of the rela tively dense fraction. The diameter of the separation chamber at an intermediate region along its lengt h is enlarged in comparison to its diameter at the inlet and outlet ends.
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