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    Apparatus for adding solid alloying ingredients to molten metal stream
    1.
    发明授权
    Apparatus for adding solid alloying ingredients to molten metal stream 失效
    将固体合金成分添加到熔融金属流中的装置

    公开(公告)号：US4630801A

    公开(公告)日：1986-12-23

    申请号：US824517

    申请日：1986-01-31

    Applicant: Daniel Rellis, Jr. ,  Donald R. Fosnacht ,  Charles R. Jackson

    Inventor： Daniel Rellis, Jr. ,  Donald R. Fosnacht ,  Charles R. Jackson

    IPC: C21C7/00

    CPC classification number: C21C7/0043

    Abstract: An elongated, vertical conduit has an upper end, communicating with the bottom opening in an upper container or ladle, and an open lower end disposed above the top surface of a bath of molten metal in a lower container or tundish. A descending stream of molten metal is directed from the conduit into the bath. A shroud encloses the conduit and the descending stream. The pressure within the shroud is lower than the outside pressure and is regulated. A mixture of transport gas and solid, particulate alloying ingredient prone to excessive fuming is injected into the descending stream within the shroud.

    Abstract translation: 细长的垂直导管具有与上部容器或钢包中的底部开口连通的上端，以及设置在下部容器或中间包中的熔融金属浴的顶表面上方的敞开的下端。 熔融金属的下降流从导管引导到浴中。 护罩包围导管和下降流。 护罩内的压力低于外部压力，并被调节。 运输气体和易于过度发烟的固体颗粒合金成分的混合物被注入到护罩内的下降流中。

    System and method for producing metallic iron
    2.
    发明授权
    System and method for producing metallic iron 有权
    金属铁生产系统及方法

    公开(公告)号：US08097065B2

    公开(公告)日：2012-01-17

    申请号：US12418037

    申请日：2009-04-03

    Applicant: Rodney L. Bleifuss ,  David J. Englund ,  Iwao Iwasaki ,  Donald R. Fosnacht ,  Mark M. Brandon ,  Bradford G. True

    Inventor： Rodney L. Bleifuss ,  David J. Englund ,  Iwao Iwasaki ,  Donald R. Fosnacht ,  Mark M. Brandon ,  Bradford G. True

    IPC: C21B13/10 ,  C21B13/08

    CPC classification number: C21B13/0073 ,  C21B13/10 ,  C21C5/567 ,  C21C2100/02 ,  C22B1/212 ,  C22B1/245 ,  C22B5/10 ,  F27B9/045 ,  F27B9/26 ,  F27B9/3005 ,  F27B9/36 ,  Y02P10/136

    Abstract: A hearth furnace 10 for producing metallic iron material has a furnace housing 11 having a drying/preheat zone 12, a conversion zone 13, a fusion zone 14, and optionally a cooling zone 15, the conversion zone 13 is between the drying/preheat zone 12 and the fusion zone 14. A moving hearth 20 is positioned within the furnace housing 11. A hood or separation barrier 30 within at least a portion of the conversion zone 13, fusion zone 14 or both separates the fusion zone 14 into an upper region and a lower region with the lower region adjacent the hearth 20 and the upper region adjacent the lower region and spaced from the hearth 20. An injector introduces a gaseous reductant into the lower region adjacent the hearth 20. A combustion region may be formed above the hood or separation barrier.

    Abstract translation: 用于生产金属铁材料的炉床10具有炉壳11，其具有干燥/预热区12，转化区13，熔融区14和任选的冷却区15，转化区13位于干燥/预热区之间 移动的炉床20定位在炉壳体11内。在转化区域13，熔融区域14或两者的至少一部分内的罩或隔离层30将熔融区域14分离成上部区域 下部区域具有邻近炉膛20的下部区域和与下部区域相邻并且与炉膛20间隔开的上部区域。喷射器将气态还原剂引入邻近炉膛20的下部区域中。可以在 罩或隔离屏障。

    Method and apparatus for adding solid alloying ingredients to molten metal stream
    4.
    发明授权
    Method and apparatus for adding solid alloying ingredients to molten metal stream 失效
    将固体合金成分添加到熔融金属流中的方法和装置

    公开(公告)号：US4602949A

    公开(公告)日：1986-07-29

    申请号：US731077

    申请日：1985-05-06

    Applicant: Daniel Rellis, Jr. ,  Donald R. Fosnacht ,  Charles R. Jackson

    Inventor： Daniel Rellis, Jr. ,  Donald R. Fosnacht ,  Charles R. Jackson

    IPC: C21C7/00 ,  C22C33/08

    CPC classification number: C21C7/0043

    Abstract: An elongated, vertical conduit has an upper end, communicating with the bottom opening in an upper container or ladle, and an open lower end disposed above the top surface of a bath of molten metal in a lower container or tundish. A descending stream of molten metal is directed from the conduit into the bath. A shroud encloses the conduit and the descending stream. The pressure within the shroud is lower than the outside pressure and is regulated. A mixture of transport gas and solid, particulate alloying ingredient prone to excessive fuming is injected into the descending stream within the shroud.

    Abstract translation: 细长的垂直导管具有与上部容器或钢包中的底部开口连通的上端，以及设置在下部容器或中间包中的熔融金属浴的顶表面上方的敞开的下端。 熔融金属的下降流从导管引导到浴中。 护罩包围导管和下降流。 护罩内的压力低于外部压力，并被调节。 运输气体和易于过度发烟的固体颗粒合金成分的混合物被注入到护罩内的下降流中。

    Method for recycling oily mill scale
    5.
    发明授权
    Method for recycling oily mill scale 失效
    回收油质量规的方法

    公开(公告)号：US4585475A

    公开(公告)日：1986-04-29

    申请号：US314107

    申请日：1981-10-23

    Applicant: Donald R. Fosnacht

    Inventor： Donald R. Fosnacht

    IPC: C21C5/32 ,  C22B1/248 ,  C21C7/068

    CPC classification number: C22B1/248 ,  C21C5/32 ,  Y02P10/212 ,  Y10S75/962

    Abstract: Oily mill scale recovered from steel manufacturing operations downstream of a refining stage for molten steel is recycled to the refining stage. Coarse particles of mill scale are removed in a pre-screening operation, the mill scale is mixed and blended with a binder, and the mixture is agglomerated into shapes, such as briquettes, using external mechanical pressure. The agglomerated shapes are introduced into molten metal containing excessive carbon, where the shapes act as a coolant and the iron oxide in the mill scale reacts with some of the carbon. The oily mill scale is neither deoiled nor ground more finely prior to introduction into the molten metal, and all processing of the mill scale is conducted under ambient conditions of temperature, pressure and atmosphere. The agglomerated shapes may be aged prior to introduction into the molten metal.

    Abstract translation: 在钢水精炼阶段下游的钢铁生产操作中回收的油灰量被回收到精炼阶段。 在预筛选操作中除去粗粉碎的粗颗粒，将研磨料与粘合剂混合并混合，并使用外部机械压力将混合物团聚成形状，例如团块。 将附聚形状引入含有过量碳的熔融金属中，其中形状用作冷却剂，并且研磨机中的氧化铁与一些碳反应。 在引入熔融金属之前，油性粉碎机既不脱油也不磨碎，并且在温度，压力和气氛的环境条件下进行所有加工。 凝聚形状可以在引入熔融金属之前老化。

    Tundish with fluid flow control structure
    10.
    发明授权
    Tundish with fluid flow control structure 失效
    中间包带流体流量控制结构

    公开(公告)号：US4653733A

    公开(公告)日：1987-03-31

    申请号：US799286

    申请日：1985-11-20

    Applicant: Frank H. Bugajski ,  Donald R. Fosnacht

    Inventor： Frank H. Bugajski ,  Donald R. Fosnacht

    IPC: B22D11/10 ,  B22D11/118 ,  C21B3/00

    CPC classification number: B22D11/118 ,  B22D11/10 ,  B22D41/003

    Abstract: An elongated tundish for the continuous strand casting of molten metal has a plurality of outlet openings arranged in a row extending in the longitudinal direction of the tundish. There is an elongated dam extending in said longitudinal direction between the row of outlet openings and the location of impact, on the tundish bottom, of a ladle nozzle stream of molten metal. The dam provides uniform residence times in the tundish for molten metal exiting the tundish at inner and outer outlet openings in the row of openings. Fluid flow control structure is located between the dam and the tundish side wall adjacent the row of outlet openings to avoid a dead zone in that region.

    Abstract translation: 用于连续铸造熔融金属的细长中间包具有沿中间包的纵向方向延伸排列成排的多个出口。 在一排出口开口之间延伸有细长的坝体，并且在中间包底部上具有熔融金属的浇包喷嘴流的冲击位置。 大坝在中间包中提供均匀的停留时间，以使熔融金属离开中间包在开口行中的内部和外部出口开口处。 流体流动控制结构位于坝和围绕出口开口排的中间包侧壁之间，以避免该区域的死区。

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