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公开(公告)号:US6156263A
公开(公告)日:2000-12-05
申请号:US77906
申请日:1998-06-04
申请人: Sang Bok An , Joon Yang Chung , Dae Saeng Kim , Chang Hee Yim , Byeong Og You , Hyeon Soo Choi , Wang Yeol Seo , Chang Hyun Lee
发明人: Sang Bok An , Joon Yang Chung , Dae Saeng Kim , Chang Hee Yim , Byeong Og You , Hyeon Soo Choi , Wang Yeol Seo , Chang Hyun Lee
CPC分类号: C21C7/10
摘要: A molten steel refining apparatus and a method therefor, in which the carbon component of molten steel can be easily removed, the temperature drop of molten steel can be effectively reduced, and a stable operation is realized. The apparatus for refining molten steel for manufacturing ultra low carbon steel includes an RH vacuum-degassing device consisting of a vessel and a snorkel composed of an up-leg and a down-leg. The apparatus further includes a plurality of gas injection lance nozzles each consisting of an inner tube and an outer tube, and installed on the side wall of the vessel of the RH vacuum-degassing device so as to inject gas toward molten steel within the vessel. The inner tube includes a throat for forming a jet stream of super-sonic velocity, and the outer tube injects cooling gas for cooling the inner tube.
摘要翻译: PCT No.PCT / KR96 / 00264 Sec。 371日期:1998年6月4日 102(e)1998年6月4日PCT 1996年12月30日PCT PCT。 出版物WO98 / 15664 日期:1998年04月16日一种能够容易地除去钢水的碳成分的钢水精炼装置及其制造方法,可以有效地降低钢水的温度下降,实现稳定的运转。 用于精炼用于制造超低碳钢的钢水的设备包括由容器和由上腿和下腿组成的浮潜的RH真空脱气装置。 该装置还包括多个气体喷射喷枪喷嘴,每个喷嘴喷枪喷嘴各自由内管和外管组成,并且安装在RH真空脱气装置的容器的侧壁上,以将气体注入容器内的钢水。 内管包括用于形成超声速喷射流的喉部,外管注入用于冷却内管的冷却气体。