Process for producing metals and metal alloys in a smelt reduction vessel
    12.
    发明授权
    Process for producing metals and metal alloys in a smelt reduction vessel 失效
    在冶炼还原容器中生产金属和金属合金的方法

    公开(公告)号:US5647888A

    公开(公告)日:1997-07-15

    申请号:US431670

    申请日:1995-05-02

    CPC classification number: C21B13/0006 C21B13/143 Y02P10/136

    Abstract: A process and a smelt reduction vessel (1) for producing metals and metal alloys, in particular iron and iron alloys, from metal oxides and ores in a smelt reduction vessel. The process and the vessel are characterized in that loss of liquid and solids with waste gases (11) from the vessel are minimized by causing the waste gases, oxidizing gases (5) and entrained liquid and solids in the space in the vessel that is above the molten metal to rotate about a vertical axis of the vessel thereby forcing liquid and solids outwardly toward the wall of the vessel. This rotational motion may be caused by injecting some or all the oxidizing gases through tuyeres (4) positioned above the bath surface obliquely to a vertical plane through a vertical axis of the vessel. The vessel may have a substantially rotationally symmetrical shape at least in the space above the molten metal (2A).

    Abstract translation: 一种用于从熔融还原容器中的金属氧化物和矿石生产金属和金属合金,特别是铁和铁合金的工艺和熔融还原容器(1)。 该方法和容器的特征在于,通过使废气,氧化气体(5)和夹带在液体和固体的容器中的空间中的液体和固体,使来自容器的废气(11)的液体和固体的损失最小化 熔融金属围绕容器的垂直轴线旋转,从而迫使液体和固体向外朝向容器的壁。 这种旋转运动可以通过将一些或所有氧化气体注入到通过容器的垂直轴线倾斜于垂直平面的位于浴表面上方的风嘴(4)来引起。 容器至少在熔融金属(2A)上方的空间中可具有基本上旋转对称的形状。

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