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    Apparatus for froth flotation
    1.
    发明授权
    Apparatus for froth flotation 失效
    泡沫浮选装置

    公开(公告)号：US3307697A

    公开(公告)日：1967-03-07

    申请号：US29406263

    申请日：1963-07-10

    申请人： BOLIDENS GRUV AB

    发明人： SON FAHLSTROM PER A H H ,  OLAV OYASATER

    IPC分类号： B03D1/16

    CPC分类号： B03D1/16 ,  B03D1/1412 ,  B03D1/1456 ,  B03D1/1462 ,  B03D1/1493 ,  B03D1/242

    摘要： 973,396. Froth flotation apparatus; agitating apparatus; aerating liquids. BOLIDENS GRUVAKTIEBOLAG. July 5, 1963 [Aug. 3, 1962], No. 26768/63. Headings B1C and B2H. A froth flotation chamber has an impeller with blades 23 on a base plate 22, the gap between the ends of the blades 23 and a surrounding array of baffle plates 11 being fed with a curtain of air bubbles from an air supply ring 24. The supply ring comprises three sections supplied from a main 29 by feeders 27 and is preferably of rubber with a bonded soft iron stiffener. The rubber is slitted or slotted underneath, the slitted version allowing the ring to seal itself against backpressure. The ring may carry discharge nozzles. Coarse and fine fractions of pulp are admitted through ports 3 and 4 and leave through ports 6 and 7 to a chamber with an outlet weir 9, 10. Froth is paddled into a launder 16 by rotating blades 15.

    Flotation machines
    2.
    发明授权
    Flotation machines 失效
    浮选机

    公开(公告)号：US2711823A

    公开(公告)日：1955-06-28

    申请号：US23987851

    申请日：1951-08-02

    申请人： BOLIDENS GRUV AB

    发明人： GUDMAR KIHLSTEDT PER ,  RUDOLF LOFGREN TORE

    IPC分类号： B03D1/16

    CPC分类号： B03D1/16 ,  B03D1/1456 ,  B03D1/1462 ,  B03D1/1493

    摘要： 699,045. Froth-flotation apparatus; impellers. BOLIDENS GRUVAKTIEBOLAG. Aug. 2, 1951 [Aug. 2, 1950], No. 18337/51. Classes 82(ii) and 86 A mixing impeller for a froth flotation machine comprises a disc 3, to the upper side of which radial blades s 4 are secured, and a guide baffle device surrounding t h e blades, there being a peripheral recess 5 in the disc between each blade which is deepest adjacent the blade trailing edge. Each baffle 9 of the baffle device is at a small angle "a" to the radius of the impeller. Smaller radial blades 10 are fitted beneath the disc 3.