公开(公告)号：US20110000340A1

公开(公告)日：2011-01-06

申请号：US12920741

申请日：2009-03-03

申请人： Akitoshi Matsui ,  Yuichi Uchida ,  Yasuo Kishimoto ,  Futoshi Ogasawara

发明人： Akitoshi Matsui ,  Yuichi Uchida ,  Yasuo Kishimoto ,  Futoshi Ogasawara

IPC分类号： C22B15/02 ,  C22B15/00

CPC分类号： C22B9/106 ,  C21C1/025 ,  C21C7/0645 ,  C21C2200/00 ,  C22B1/005 ,  C22B9/10 ,  C22B15/0056 ,  Y02P10/214 ,  Y02P10/22 ,  Y02P10/234 ,  Y02P10/236

摘要： In producing high-quality steel with use of copper-containing steel scraps as an iron source, the copper-containing steel scraps are melted with addition of carbon to produce hot metal for steelmaking, then, copper contained in the hot metal is removed by sulfur-containing flux, and sulfur contained in the hot metal is removed. With this method, the copper in the steel scraps can be removed efficiently and without the need for large facilities. Preferably, the sulfur-containing flux used is flux having Na2S as the main component. The treatment for removing copper in the hot metal is preferably carried out with use of refining equipment with mechanical stirrer or by the flux injecting method. Besides, it is preferable that a shaft furnace having a coke bed formed inside is used to produce hot metal having a higher concentration of sulfur for the copper removal treatment.

摘要翻译： 在使用含铜钢屑作为铁源生产优质钢时，通过添加碳熔化含铜钢屑，以生产用于炼钢的热金属，然后通过硫除去铁水中所含的铜 并且除去包含在热金属中的硫。 通过这种方法，可以有效地去除钢屑中的铜而无需大型设备。 优选地，使用的含硫助熔剂是具有Na 2 S作为主要成分的助熔剂。 用于除去热金属中的铜的处理优选使用具有机械搅拌器的精炼设备或通过注射方法进行。 此外，优选的是，将内部形成有焦炭床的竖炉用于生产具有较高浓度硫的热金属用于铜去除处理。