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    MULTIPLEX COHERENT JET LANCE
    1.
    发明专利
    MULTIPLEX COHERENT JET LANCE 失效

    公开(公告)号：JP2000313913A

    公开(公告)日：2000-11-14

    申请号：JP2000096901

    申请日：2000-03-31

    Applicant: PRAXAIR TECHNOLOGY INC

    Inventor： ANDERSON JOHN ERLING ,  FARRENKOPF DENNIS ROBERT ,  SEMENZA RICHARD THOMAS ,  MATHUR PRAVIN CHANDRA ,  MAHONEY WILLIAM JOHN

    IPC: C22B9/05 ,  C21C5/30 ,  C21C5/46 ,  C21C5/48 ,  C21C7/072 ,  C22B13/02 ,  C22B15/06 ,  C22B19/32 ,  F23D14/22 ,  F23D14/32 ,  F27B3/22 ,  F27D7/02

    Abstract: PROBLEM TO BE SOLVED: To form a multiplex coherent gas jet with a simple lance by feeding out fuel and oxidizer from the end part of a lance, burning, forming a flame envelope surrounding plural gas jets and individually holding the flow of each gas jet over this longitudinal direction. SOLUTION: The gas is jetted from each outlet opening hole 5 in plural nozzles 3 arranged in the lance 1. A first annular jetting means 8 on an acting surface at the end part 2 of the lance 1 is formed as a ring encircling the outlet opening holes 5 of plural nozzles 3 and a second annular jetting means 9 is formed as a ring by encircling the first annular jetting means 8. The fuel and the oxidizer exhausted from those two annular means are burnt to form the envelope surrounding plural gas jets. A space 11 formed with an outer extending part 10 forms a protecting zone which immediately protects at the flow-out time of the oxidizer from the end part 2 and works in assistant to obtain the coherency to each gas jet.

    SYSTEM FOR GENERATING SINGLE COHERENT JET
    2.
    发明专利
    SYSTEM FOR GENERATING SINGLE COHERENT JET 失效

    公开(公告)号：JP2001181726A

    公开(公告)日：2001-07-03

    申请号：JP2000334319

    申请日：2000-11-01

    Applicant: PRAXAIR TECHNOLOGY INC

    Inventor： MAHONEY WILLIAM JOHN ,  ANDERSON JOHN ERLING

    IPC: F23D14/54 ,  C21C5/46 ,  C22B9/05 ,  F23D14/22 ,  F23D14/48 ,  F27D3/16 ,  F27D7/02 ,  F27D99/00

    Abstract: PROBLEM TO BE SOLVED: To provide a system, in which gas from plural gas flows can be passed through over the long distance from these supplying devices. SOLUTION: This system is the one for forming single coherent gas jet from plural initial gas jets injected from a single lance. The initial gas jet itself is the coherent and angled inward and surrounded by a flame. The initial coherent gas jets merge to form the single coherent gas jet, and the gases of the initial gas jets do not substantially interact within the single coherent gas jet over the whole length of the resulting single coherent gas jet.

    METHOD FOR CHANGING LENGTH OF COAGULATED JET
    3.
    发明专利
    METHOD FOR CHANGING LENGTH OF COAGULATED JET 失效

    公开(公告)号：JP2001141236A

    公开(公告)日：2001-05-25

    申请号：JP2000265107

    申请日：2000-09-01

    Applicant: PRAXAIR TECHNOLOGY INC

    Inventor： ANDERSON JOHN ERLING ,  SARMA BALU ,  MAHONEY WILLIAM JOHN

    IPC: F23N5/00 ,  B05B1/34 ,  F23C5/14 ,  F23D14/22 ,  F23D14/32 ,  F23D14/84 ,  F27D7/02

    Abstract: PROBLEM TO BE SOLVED: To provide a method by which the length of a coagulated jet can be changed without changing the facility nor the flow rate of the gas constituting the jet. SOLUTION: In a method for changing length of coagulated jet, a coagulated jet is established by using a flame surrounding material generated by using gaseous fuel and the length of the jet is changed by changing the flow rate of the fuel. Desirably, the total flow rate of the fuel and an inert gas for makeup is fixed by using the inert gas. This method includes a step of establishing a coagulated jet having a first length by forming the flame surrounding material coaxially with the flow of a main gas, by combusting the gaseous fuel and an oxidizing material by supplying the main gas in a main gas flow at a main gas flow rate and the gaseous fuel at a first gaseous fuel flow rate, and another step of establishing another coagulated jet having a second length which is different from the first length by forming the flame surrounding material coaxially with the flow of the main gas, by combusting the gaseous fuel and oxidizing material by supplying the main gas in the main gas flow at the main gas flow rate and the gaseous fuel at a second gaseous fuel flow rate which is different from the first flow rate.

    RELIABLE IGNITION OF HOT OXYGEN GENERATOR
    5.
    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
    7.
    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。

    METHOD FOR PRODUCING LOW CARBON STEEL
    8.
    发明申请
    METHOD FOR PRODUCING LOW CARBON STEEL 审中-公开
    生产低碳钢的方法

    公开(公告)号：WO2005069977A3

    公开(公告)日：2006-02-23

    申请号：PCT/US2005002102

    申请日：2005-01-19

    Applicant: PRAXAIR TECHNOLOGY INC ,  RILEY MICHAEL FRANCIS ,  MAHONEY WILLIAM JOHN

    Inventor： RILEY MICHAEL FRANCIS ,  MAHONEY WILLIAM JOHN

    IPC: C21C5/32 ,  C21C5/46 ,  C21C5/52 ,  C21C7/068

    CPC classification number: C21C7/068 ,  C21C5/4606 ,  C21C5/5217 ,  C21C2300/02 ,  Y02P10/216

    Abstract: A method for producing low carbon steel (13) wherein molten steel is decarburized in a three stage refining procedure comprising a first stage wherein oxygen is provided for decarburization enveloped in a gas shroud (16), a second stage wherein oxygen is provided for decarburization enveloped in a flame shroud (16), and a third stage wherein inert gas or oxygen is provided enveloped in a flame shroud (16).

    Abstract translation: 一种生产低碳钢（13）的方法，其中钢水在三阶段精炼过程中脱碳，包括第一阶段，其中提供用于脱气的氧气包围在气体罩（16）中，其中提供氧气以脱碳包封 在火焰护罩（16）中，以及第三级，其中惰性气体或氧被包围在火焰罩（16）中。

    OXYGEN INJECTION METHOD
    10.
    发明专利
    OXYGEN INJECTION METHOD 未知

    公开(公告)号：CA2654912C

    公开(公告)日：2011-08-23

    申请号：CA2654912

    申请日：2007-06-26

    Applicant: PRAXAIR TECHNOLOGY INC

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

    IPC: C21C5/52 ,  C21C5/46

    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.

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