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    CONTROL METHOD OF A FLOTATION MACHINE THAT IS USED IN METALLURGICAL PROCESSES
    1.
    发明公开
    CONTROL METHOD OF A FLOTATION MACHINE THAT IS USED IN METALLURGICAL PROCESSES 有权
    控制方法用于浮选FOR冶金工艺

    公开(公告)号：EP2621637A1

    公开(公告)日：2013-08-07

    申请号：EP11779189.7

    申请日：2011-09-26

    申请人： Outotec OYJ

    发明人： RINNE, Antti ,  SALOHEIMO, Kari

    IPC分类号： B03D1/16 ,  B03D1/02 ,  G01F23/28

    CPC分类号： B03D1/02 ,  B03D1/028 ,  B03D1/16 ,  B03D1/20 ,  G01F23/296 ,  G01F23/2962

    摘要： The invention relates to a method of using a flotation machine that is used in metallurgical processes and to a flotation machine. The flotation machine foams hydrophobic particles from anaqueous slurry that contains these particles. The flotation machine includes a flotation cell (1), and a rotor (2) that is inside the flotation cell. The rotor (2) is rotated at a mixing power, which maintains the suspension in the slurry and mixing of air with the slurry to form the foam, and the mixing power is controlled by adjusting the rotation speed of the rotor. The amount of solid matter S accumulated on the bottom of the cell (1) is determined, and the rotation speed of the rotor (2) is adjusted on the basis of the determined amount of solid matter. The flotation machine includes a measuring device (5) for determining the amount of solid matter accumulated on the bottom of the cell. The adjusting device (4) is arranged to adjust the rotation speed of the motor (3), which rotates the rotor (2), on the basis of the measuring result of the measuring device (5) to remove the solid matter from the bottom of the cell.

    FLOTATION MACHINE
    4.
    发明公开
    FLOTATION MACHINE 有权
    浮选

    公开(公告)号：EP2539076A1

    公开(公告)日：2013-01-02

    申请号：EP11746919.7

    申请日：2011-02-22

    申请人： Outotec OYJ

    发明人： PELTOLA, Aleksi ,  RINNE, Antti

    IPC分类号： B03D1/14 ,  B01F13/08 ,  C02F1/24

    CPC分类号： B01F3/04539 ,  B01F3/04617 ,  B01F13/0827 ,  B01F13/0836 ,  B01F2003/04546 ,  B01F2003/04652 ,  B01F2003/04687 ,  B03D1/1412 ,  B03D1/16 ,  B03D1/20 ,  C02F1/24 ,  C02F2201/002

    摘要： An air distribution and mixing device is arranged in the vicinity of the bottom of a flotation cell for distributing air to the slurry for forming froth and mixing the slurry in the flotation cell. A rotor part of the air distribution and mixing device has air distribution apertures and is attached to the lower end of a drive shaft extending vertically in the flotation cell. The drive shaft has a hollow interior, which constitutes a flow channel for conducting flotation air to the air distribution holes of the rotor part. An electric motor for rotating the drive shaft is supported by a separate supporting framework, which is on top of the flotation cell. The electric motor is a permanent magnet motor that comprises having a vertical rotor shaft, the lower end of which is in permanent contact directly with the upper end of the drive shaft.