Method of desulfurizing an iron melt
    2.
    发明授权
    Method of desulfurizing an iron melt 失效
    铁熔体脱硫方法

    公开(公告)号:US4392887A

    公开(公告)日:1983-07-12

    申请号:US327450

    申请日:1981-12-04

    申请人: Jean Goedert

    发明人: Jean Goedert

    IPC分类号: C21C1/02 C21C7/064 C21C7/02

    CPC分类号: C21C1/02 C21C7/064 C21C7/0645

    摘要: A desulfurization method in which an iron melt, carefully skimmed from slag in a ladle, is covered with about 1 to 2 kg. of lime per ton of iron, the melt is deoxidized to at most 35 ppm of oxygen and is then blown with a mixture of lime, calcium fluoride and metallic aluminum in an inert gas by means of a lance immersed in the bath so that the outlet of the lance is at an average depth of about 1500 mm below the bath surface.

    摘要翻译: 一种脱硫方法,其中从钢包中的渣中精心撇去的铁熔体被约1至2kg覆盖。 的石灰每吨铁,将熔体脱氧至至多35ppm的氧,然后通过浸入浴中的喷枪在惰性气体中用石灰,氟化钙和金属铝的混合物吹入,使得出口 喷枪的平均深度在浴表面下方约1500毫米。

    Method of desulfurizing a ferrous melt
    4.
    发明授权
    Method of desulfurizing a ferrous melt 失效
    黑色金属熔体脱硫方法

    公开(公告)号:US4415358A

    公开(公告)日:1983-11-15

    申请号:US371439

    申请日:1982-04-23

    CPC分类号: C21C7/064 B22D1/005

    摘要: A melt is contained in a vessel having below the level of the melt an at least gas-pervious wall portion. First the slag is removed, normally by pouring it off, from the melt. Then a finely divided treatment solids suspended in a gas is introduced through the wall portion into the melt. The melt reacts thoroughly with these solids. Immediately deslagging the melt substantially reduces its ability to pick up nitrogen or hydrogen. This can be enhanced by the further step, prior to introduction of the suspension, of adding pure lime to the melt to form a protective layer thereon. The vehicle gas for the powder of course is inert, normally argon. The vessel can also be sealed up with a tight cover after addition of pure lime to it and before introduction of the suspension. Otherwise in the subsequent desulfurizing nitrogen and hydrogen will enter into the metal matrix, especially if there is an appropriate slag present.

    摘要翻译: 熔体包含在具有低于熔体高度的至少一个气体可透过壁部分的容器中。 首先,通常将熔渣从熔体中倒出来。 然后将悬浮在气体中的细碎处理固体通过壁部分引入熔体中。 熔体与这些固体彻底反应。 立即脱气熔体显着降低其吸收氮气或氢气的能力。 这可以通过进一步的步骤,在引入悬浮液之前,将纯石灰添加到熔体中以在其上形成保护层来增强。 用于粉末的汽车气体当然是惰性的,通常是氩气。 在加入纯石灰并在引入悬浮液之前,也可以用紧密的盖子密封容器。 否则在随后的脱硫氮气中,氢气将进入金属基质,特别是如果存在适当的矿渣。

    Process and apparatus for the desulfurizing of iron melts
    5.
    发明授权
    Process and apparatus for the desulfurizing of iron melts 失效
    铁熔体脱硫的工艺和设备

    公开(公告)号:US4347078A

    公开(公告)日:1982-08-31

    申请号:US106367

    申请日:1979-12-21

    申请人: Jean Goedert

    发明人: Jean Goedert

    IPC分类号: C21C1/02 C21C7/00 C21C7/064

    CPC分类号: C21C7/0037 C21C7/064 C21C1/02

    摘要: A desulphurizing agent is blown into a metallurgical converter from a storage bin which is connected over a vane type bilowthrough feeder. Variable amounts of desulphurizing agents are fed through the inlet by margin the rotational speed of the vanes.

    摘要翻译: 将脱硫剂从连接在叶片式双向通过进料器上的储存箱吹入冶金转化器。 可变量的脱硫剂通过入口通过叶片的转速进给。