Method for refining molten metal and apparatus for same
    1.
    发明授权
    Method for refining molten metal and apparatus for same 失效
    冶炼金属的方法及其设备

    公开(公告)号:US5753004A

    公开(公告)日:1998-05-19

    申请号:US586871

    申请日:1996-01-24

    IPC分类号: C21C7/10 C22B9/05 C21B11/10

    CPC分类号: C21C7/10 C22B9/05

    摘要: A method of refining molten metal includes the steps of reduced-pressure-refining molten metal in a heated vessel, adding slag-forming agents into the refined molten metal while keeping the molten metal in the vessel, or after pouring the molten metal into another vessel, re-refining the molten metal by heating the molten metal with inert-gas plasma and while stirring the molten metal as occasion demands. Preferably, the refining apparatus includes two adjacent chambers, each chamber isolated from the surrounding atmosphere. The chambers can be connected with, or separated from, each other and each chamber is provided with an exhaust device. One of the chambers is provided with an induction heating refining furnace, and the other chamber is provided with inert gas plasma heater. The apparatus also includes a re-refining vessel which is transferable between the two chambers, and a material feeder for feeding slag-forming agents into the re-refining vessel.

    摘要翻译: PCT No.PCT / JP94 / 02268 Sec。 371日期:1996年1月24日 102(e)日期1996年1月24日PCT 1994年12月27日PCT公布。 公开号WO95 / 32312 PCT 日期:1995年11月30日精炼熔融金属的方法包括在加热容器中减压精炼熔融金属的步骤,将熔渣形成剂添加到精炼的熔融金属中,同时将熔融金属保持在容器中, 熔融金属进入另一个容器,通过用惰性气体等离子体加热熔融金属并根据需要搅拌熔融金属来重新精炼熔融金属。 优选地,精炼装置包括两个相邻的室,每个室与周围大气隔离。 室可以彼此连接或彼此分离,并且每个室设置有排气装置。 其中一个室设有感应加热精炼炉,另一个室设有惰性气体等离子体加热器。 该设备还包括可在两个室之间转移的再精炼容器和用于将成渣剂进料到再精炼容器中的料料供料器。