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1. 发明授权

US3985549A Process for continuously refining molten metals 失效
标题翻译：不断精炼熔融金属的工艺
公开(公告)号：US3985549A
公开(公告)日：1976-10-12
申请号：US575174
申请日：1975-05-07
申请人： Paul Rheinlander , Gustav Mahn , Klaus Berner , Klaus Schulz, deceased , by Ingrid Ruhland, legal representative
发明人： Paul Rheinlander , Gustav Mahn , Klaus Berner , Klaus Schulz, deceased , by Ingrid Ruhland, legal representative
IPC分类号： C21C5/56 , C21C7/00
CPC分类号： C21C5/567
摘要： The disclosed process of continuously refining molten metal is carried out in a refining apparatus having communicating first and second refining stage spaces. Refining gas, such as oxygen, is blown into the molten metal in the presence of a slag layer on the molten metal. The molten metal and the slag are conveyed as two separate non-intermingled streams through the refining stage spaces, as distinguished from a slag-metal emulsion. The slag in the second refining stage space is caused continuously to flow back into the first refining stage space to form a slag layer on the molten metal in the first refining stage space. Refining gas is blown into the molten metal in the first refining stage space below said slag layer, and the molten metal is conveyed from said first refining stage space to said second refining stage space while preventing the flow of slag from said first refining stage space to said second refining stage space. Refining gas is blown onto said molten metal in said second refining stage space in the presence of slag so that a slag layer on the molten metal in said second refining stage space is formed. The molten metal and the slag are separated from each other after the molten metal has passed through said second refining stage space.
摘要翻译：所公开的连续精炼熔融金属的方法在具有连通的第一和第二精炼阶段空间的精炼装置中进行。在熔融金属上存在熔渣层的情况下，将诸如氧气的精炼气体吹入熔融金属中。与熔渣金属乳液不同，熔融金属和炉渣作为两个单独的非混合流输送通过精炼阶段空间。第二精炼阶段空间中的炉渣被连续地引回到第一精炼阶段空间中，以在第一精炼阶段空间中的熔融金属上形成渣层。精炼气体被吹入所述渣层下方的第一精炼阶段空间中的熔融金属中，并且熔融金属从所述第一精炼阶段空间输送到所述第二精炼阶段空间，同时防止来自所述第一精炼阶段空间的炉渣流说第二个炼油阶段的空间。在渣的存在下，在所述第二精炼阶段空间中将精炼气吹到所述熔融金属上，从而形成所述第二精炼阶段空间中的熔融金属上的炉渣层。在熔融金属通过所述第二精炼阶段空间之后，熔融金属和熔渣彼此分离。

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