公开(公告)号：WO2022079604A1

公开(公告)日：2022-04-21

申请号：PCT/IB2021/059361

申请日：2021-10-12

Applicant: FLSMIDTH A/S

Inventor： SOK, Thien ,  COLTRIN, Ian

IPC: B03D1/16 ,  B03D1/14 ,  B03D1/18 ,  B01F23/23

Abstract: A self-aspirated froth flotation cell 100 may include a slurry vortex stabilizer 166 having an annular body 234 with an upper annular edge 176 and an aperture 180 extending through a central region of the annular body 234. The aperture 180 may have an inner surface 182 bounded between an upper inner edge 178 and a lower inner edge 200 that is configured to allow the drive shaft 142 to rotate freely therein. The slurry vortex stabilizer 166 may have an annular undersurface 210 configured with a inner first portion 212, a second portion 236 provided around the first portion 212, and an annular intersection, transition, or inflection 214 therebetween. A sloped upper surface 242 which tapers downwardly towards the central region of the annular body 234 as it approaches the aperture 180 forms a lower fluid surface boundary within a standpipe 152.

公开(公告)号：WO2021084430A1

公开(公告)日：2021-05-06

申请号：PCT/IB2020/060082

申请日：2020-10-28

Applicant: FLSMIDTH A/S

Inventor： SOK, Thien ,  LELINSKI, Dariusz ,  DABROWSKI, Bartosz ,  CHRISTODOULOU, Lance ,  COLTRIN, Ian ,  SRINIVASAN, Muthu ,  SILVA, Ronney Rodrigues

IPC: B03D1/14 ,  B01F3/04 ,  B03D1/16 ,  B03D1/20

Abstract: A rotor (1) for a self-aspirated flotation cell (100) includes a body (2) having a base (25), and a bottom surface (19) that may be frustoconical. The rotor (1) may have a plurality of vanes (8) extending radially-outwardly from the body (2). A pumping cavity (9) may be centrally disposed within the rotor (1). The pumping cavity (9) may be defined below the bottom surface (19) and between inner surface portions (22) of the plurality of vanes (8). The plurality of vanes (8) may each extend from an upper vane surface (10) to a lower vane surface (18). The lower vane surfaces (18) may extend beyond the bottom surface (19) of the base (25).

公开(公告)号：WO2021161260A1

公开(公告)日：2021-08-19

申请号：PCT/IB2021/051200

申请日：2021-02-12

Applicant: FLSMIDTH A/S

Inventor： COLTRIN, Ian ,  LELINSKI, Dariusz ,  DABROWSKI, Bartosz ,  CHRISTODOULOU, Lance ,  SRINIVASAN, Muthu ,  SILVA, Ronney Rodrigues ,  SOK, Thien

IPC: B03D1/14 ,  B03D1/16 ,  B01F3/04 ,  B01F7/16 ,  B03D1/20

Abstract: A disperser hood (1) for a self-aspirated flotation cell (100) includes a collar (2), and a conical member (4) extending downwardly and radially-outwardly from the collar (2). The disperser hood (1) may be characterised in that it further comprises a plurality of vanes (6) extending downwardly from the conical member (4). Each of the plurality of vane (6) may have a lower side (8), a radially-inner side (9), and an external radius, curve, or chamfer (7) extending between the lower side (8) and radially-inner side (8).