公开(公告)号：WO2021094386A1

公开(公告)日：2021-05-20

申请号：PCT/EP2020/081783

申请日：2020-11-11

Applicant: FLSMIDTH A/S

Inventor： JOHANSEN, Johnny ,  KYHNAUV, Jesper, Gerdes ,  NIKISCHER, Tod

IPC: B04B1/00 ,  B03B5/32 ,  B04B7/08

Abstract: A centrifuge (1) for separating intermixed particulate material of different specific gravity. The centrifuge (1) comprising a centrifuge bowl (10) having a plurality of annular recesses (19), a housing (30), an inlet (17), and means for rotating the centrifuge bowl (10) about the central axis (15). An annular cavity (31) is defined between the housing (30) and the centrifuge bowl (10). The annular cavity (31) is fluidly connected to the plurality of annular recesses (19) on the inner surface of the centrifuge bowl by a number of perforations in the centrifuge bowl wall (12). The annular cavity (31) has a fluid inlet to provide fluid into the annular cavity. The annular cavity (31) has an accumulated cross-sectional flow area (Allow) at two different heights in the annular cavity that differs by at least a factor 10.