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    OXYGEN INJECTION METHOD
    3.
    发明申请
    OXYGEN INJECTION METHOD 审中-公开
    氧气注入方法

    公开(公告)号：WO2008002585A1

    公开(公告)日：2008-01-03

    申请号：PCT/US2007/014844

    申请日：2007-06-26

    Applicant: PRAXAIR TECHNOLOGY, INC. ,  MAHONEY, William, John ,  RILEY, Michael, Francis ,  DENEYS, Adrian, Christianl ,  VARDIAN, Gary, Thomas ,  MANLEY, Stephen, A.

    Inventor： MAHONEY, William, John ,  RILEY, Michael, Francis ,  DENEYS, Adrian, Christianl ,  VARDIAN, Gary, Thomas ,  MANLEY, Stephen, A.

    IPC: C21C5/52 ,  C21C5/46

    CPC classification number: F23D14/22 ,  C21C5/4606 ,  C21C5/5217 ,  F23D14/32 ,  F23D14/48 ,  F27D1/16 ,  Y02P10/216

    Abstract: A method of injecting oxygen into a melt located within a metallurgical furnace having a heated furnace atmosphere in which oxygen and fuel is injected into 1 or more nozzles having passageways of converging- diverging configuration under choked flow conditions to produce supersonic jet or jets discharged from the passageways. Fuel is injected into internal circumferential locations of the passageways so as to impart a structure to the jets being discharged that have an outer circumferential region containing a mixture of fuel and oxygen and a central region containing essentially oxygen. Such a structured jet upon discharge interacts with the furnace atmosphere to create an outer shear-mixing zone in which the outer circumferential layer mixes with the heated furnace atmosphere and auto- ignites to produce a flame envelope surrounding a supersonic jet of oxygen. The jet of oxygen and flame envelope can be directed against a melt contained within the metallurgical furnace for injection of oxygen into the melt.

    Abstract translation: 将氧气注入位于具有加热炉气氛的冶金炉内的熔体中的方法，其中将氧气和燃料注入到具有在阻塞流动条件下具有会聚 - 分叉形状的通道的1个或更多个喷嘴中以产生超音速喷射或从 通道。 将燃料喷射到通道的内部圆周位置，以便给出排出的具有包含燃料和氧气的混合物的外周区域和基本上含有氧的中心区域的结构。 放电时的这种结构化射流与炉子气氛相互作用，形成一个外部剪切混合区，外部外层与加热的炉子气氛混合，并自动点燃以产生围绕超音速喷射氧气的火焰包络。 氧气和火焰包层的射流可以针对包含在冶金炉内的熔体用于将氧气注入到熔体中。

    RELIABLE IGNITION OF HOT OXYGEN GENERATOR
    4.
    发明申请
    RELIABLE IGNITION OF HOT OXYGEN GENERATOR 审中-公开
    热氧发生器的可靠点火

    公开(公告)号：WO2010002762A2

    公开(公告)日：2010-01-07

    申请号：PCT/US2009049008

    申请日：2009-06-29

    Applicant: PRAXAIR TECHNOLOGY INC ,  MAHONEY WILLIAM JOHN ,  BIELEC BRYAN R ,  VARDIAN GARY THOMAS ,  DENEYS ADRIAN CHRISTIAN ,  RILEY MICHAEL FRANCIS ,  SLYE WILLIAM ERIC

    Inventor： MAHONEY WILLIAM JOHN ,  BIELEC BRYAN R ,  VARDIAN GARY THOMAS ,  DENEYS ADRIAN CHRISTIAN ,  RILEY MICHAEL FRANCIS ,  SLYE WILLIAM ERIC

    IPC: F23D14/32

    CPC classification number: F23D14/22 ,  F23D14/32 ,  F23D2700/026 ,  F23D2900/00006 ,  F23Q13/00

    Abstract: A stream of hot oxygen is formed by providing a duct and a fuel lance movable axially within the duct, flowing gaseous fuel out of the lance into the duct, mixing it in the duct with gaseous oxidant, flowing the mixture out of the duct into an atmosphere which is hot enough that it ignites the mixture without aid of an ignition source other than said atmosphere, and combusting said mixture in a flame that does not extend into said duct; then moving the lance so its fuel outlet approaches the duct exit orifice so that the base of said flame moves inside said duct to the fuel outlet; and then moving the lance to draw the fuel outlet and the flame attached thereto away from the exit orifice into the duct; and increasing the flow rate of gaseous oxidant in said duct, so that combustion of fuel within the duct heats uncombusted oxygen which emerges as a stream of hot oxidant.

    Abstract translation: 通过提供在管道内轴向移动的管道和燃料喷枪来形成热氧流，将气体燃料从喷枪流出到管道中，将其与气体氧化剂混合在管道中，将混合物从管道中流出到 足够高的气氛，使得在没有辅助除了所述气氛之外的点火源的情况下点燃混合物，并且在不延伸到所述管道中的火焰中燃烧所述混合物; 然后移动喷枪使其燃料出口接近管道出口孔，使得所述火焰的底部在所述管道内移动到燃料出口; 然后移动喷枪以将燃料出口和附接到其上的火焰从出口喷射到管道中; 并且增加所述管道中的气态氧化剂的流速，使得管道内燃料的燃烧加热作为热氧化剂流出现的未燃氧。

    OXYGEN INJECTION METHOD
    5.
    发明申请
    OXYGEN INJECTION METHOD 审中-公开
    氧气注射法

    公开(公告)号：WO2008002585A8

    公开(公告)日：2008-12-04

    申请号：PCT/US2007014844

    申请日：2007-06-26

    Applicant: PRAXAIR TECHNOLOGY INC ,  MAHONEY WILLIAM JOHN ,  RILEY MICHAEL FRANCIS ,  DENEYS ADRIAN CHRISTIANL ,  VARDIAN GARY THOMAS ,  MANLEY STEPHEN A

    Inventor： MAHONEY WILLIAM JOHN ,  RILEY MICHAEL FRANCIS ,  DENEYS ADRIAN CHRISTIANL ,  VARDIAN GARY THOMAS ,  MANLEY STEPHEN A

    IPC: C21C5/52 ,  C21C5/46

    CPC classification number: F23D14/22 ,  C21C5/4606 ,  C21C5/5217 ,  F23D14/32 ,  F23D14/48 ,  F27D1/16 ,  Y02P10/216

    Abstract: A method of injecting oxygen into a melt located within a metallurgical furnace having a heated furnace atmosphere in which oxygen and fuel is injected into 1 or more nozzles having passageways of converging- diverging configuration under choked flow conditions to produce supersonic jet or jets discharged from the passageways. Fuel is injected into internal circumferential locations of the passageways so as to impart a structure to the jets being discharged that have an outer circumferential region containing a mixture of fuel and oxygen and a central region containing essentially oxygen. Such a structured jet upon discharge interacts with the furnace atmosphere to create an outer shear-mixing zone in which the outer circumferential layer mixes with the heated furnace atmosphere and auto- ignites to produce a flame envelope surrounding a supersonic jet of oxygen. The jet of oxygen and flame envelope can be directed against a melt contained within the metallurgical furnace for injection of oxygen into the melt.

    Abstract translation: 一种将氧气注入位于具有加热炉气氛的冶金炉内的熔体的方法，其中氧气和燃料被注入到具有在扼流条件下的会聚 - 发散结构的通道的一个或多个喷嘴中，以产生超音速喷射或从 通道。 燃料被喷射到通道的内部圆周位置，以便为正被排出的射流赋予结构，该结构具有包含燃料和氧气的混合物的外周区域和基本上包含氧气的中心区域。 排出时的这种结构化射流与炉内气氛相互作用以产生外部剪切混合区，其中外部周围层与加热炉气氛混合并自燃以产生围绕超音速氧射流的火焰包围。 氧气和火焰包膜射流可以直接对着冶金炉内的熔体喷射氧气进入熔体。

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