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    Method for melting and refining metals
    1.
    发明授权
    Method for melting and refining metals 失效
    熔化和精炼金属的方法

    公开(公告)号：US4752330A

    公开(公告)日：1988-06-21

    申请号：US933149

    申请日：1986-11-21

    Applicant: Grigory M. Gitman

    Inventor： Grigory M. Gitman

    IPC: C21C5/46 ,  C21C5/32

    CPC classification number: C21C5/4606 ,  Y02P10/212

    Abstract: This invention relates to a lance/burner apparatus and a method for melting and refining metals. Combustion produced from an oxy-fuel or fuel-air-oxygen flame is used to preheat and melt scrap. Oxygen is introduced through a lance pipe into the molten scrap to refine the metal.

    Abstract translation: 本发明涉及一种喷枪/燃烧器装置和一种熔化和精炼金属的方法。 使用由氧燃料或燃料 - 空气 - 氧气火焰产生的燃烧来预热和熔化废料。 氧气通过喷枪管引入熔融废料中以精炼金属。

    Apparatus for melting and refining metals
    3.
    发明授权
    Apparatus for melting and refining metals 失效
    用于熔化和精炼金属的装置

    公开(公告)号：US4865297A

    公开(公告)日：1989-09-12

    申请号：US185910

    申请日：1988-04-25

    Applicant: Grigory M. Gitman

    Inventor： Grigory M. Gitman

    IPC: C21C5/46

    CPC classification number: C21C5/4606 ,  Y02P10/212 ,  Y10S266/901

    Abstract: This invention relates to a lance/burner apparatus and a method for melting and refining metals. Combustion produced from an oxy-fuel or fuel-air-oxygen flame is used to preheat and melt scrap. Oxygen is introduced through a lance pipe into the molten scrap to refine the metal.

    Abstract translation: 本发明涉及一种喷枪/燃烧器装置和一种熔化和精炼金属的方法。 使用由氧燃料或燃料 - 空气 - 氧气火焰产生的燃烧来预热和熔化废料。 氧气通过喷枪管引入熔融废料中以精炼金属。

    Oxy-fuel burner
    6.
    发明授权
    Oxy-fuel burner 失效
    氧燃料燃烧器

    公开(公告)号：US4473350A

    公开(公告)日：1984-09-25

    申请号：US391601

    申请日：1982-06-24

    Applicant: Grigory M. Gitman

    Inventor： Grigory M. Gitman

    IPC: C21C5/52 ,  F23M5/02 ,  F27B3/20 ,  F23D11/36

    CPC classification number: F23L7/007 ,  C21C5/5217 ,  F23M5/025 ,  F27B3/20 ,  Y02E20/344 ,  Y02P10/216 ,  Y02P10/34

    Abstract: An oxygen-fuel burner of the rocket burner type includes a graphite burner block for direct exposure to the interior of a furnace, and a cylindrical combustion chamber formed through the hot face of the burner block and extending into the burner block. An oxygen supply conduit delivers oxygen to the combustion chamber along the center line of the combustion chamber and fuel supply ducts deliver fuel to the combustion chamber at the concave surface of the combustion chamber. A plurality of rectilinear cooling bores extend into the burner block and are arranged in a parallel array about the combustion chamber. A liquid coolant header moves cooling liquid through a plurality of parallel supply tubes which are telescopically received within the cooling bores, thereby maintaining the burner block at a reduced temperature. The nozzle that supplies the oxygen to the combustion chamber is movable along the length of the combustion chamber so as to change the shape of the flame emitted from the burner.

    Abstract translation: 火箭燃烧器类型的氧 - 燃料燃烧器包括用于直接暴露于炉内部的石墨燃烧器块，以及通过燃烧器块的热面形成并延伸到燃烧器块中的圆柱形燃烧室。 氧气供应管道沿着燃烧室的中心线将氧气输送到燃烧室，并且燃料供应管道在燃烧室的凹面处将燃料输送到燃烧室。 多个直线冷却孔延伸到燃烧器块中并且围绕燃烧室布置成平行阵列。 液体冷却液集管将冷却液移动通过可伸缩地容纳在冷却孔内的多个平行供应管，从而将燃烧器块保持在降低的温度。 向燃烧室供给氧气的喷嘴可沿着燃烧室的长度移动，以便改变从燃烧器发出的火焰的形状。

    Recuperative burner
    7.
    发明授权
    Recuperative burner 失效
    恢复燃烧器

    公开(公告)号：US4453913A

    公开(公告)日：1984-06-12

    申请号：US380560

    申请日：1982-05-21

    Applicant: Grigory M. Gitman

    Inventor： Grigory M. Gitman

    IPC: F23D14/34 ,  F23D23/00 ,  F23L15/04 ,  F23Q9/00

    CPC classification number: F23D14/34 ,  F23D23/00 ,  F23L15/04 ,  Y02E20/344 ,  Y02E20/348

    Abstract: A pair of burner tubes are arranged in concentric relationship. Fuel and air in a rich fuel-air ratio is provided to the central burner tube, and fuel and air in a lean fuel-air ratio is provided to the outer burner tube. The rich combination of fuel and air is partially burned at a temperature of about 2,500.degree. F. while the lean combination of fuel and air is burned at a temperature of less than 2,800.degree. F., and the flames from the burner tubes are mixed at the ends of the burner tubes to form a final flame envelope and to finish the combustion of the rich mixture. Exhaust gas is directed about the burner tubes, and combustion supply air is circulated about and preheated by the exhaust gas conduits and the outer burner tube. The separate combustion of the rich and lean fuel-air mixtures at relatively low temperatures and the subsequent mixing of the flames from the burner tubes results in low NOx emissions and results in high luminosity of the final flame envelope.

    Abstract translation: 一对燃烧器管以同心关系布置。 向中央燃烧器管提供富燃料比的燃料和空气，并且向外部燃烧器管提供燃料和贫空燃比的空气。 燃料和空气的丰富组合在约2,500°F的温度下部分燃烧，而燃料和空气的稀混合在低于2800°F的温度下燃烧，并且来自燃烧器管的火焰被混合在 燃烧器管的端部形成最终的火焰包层并完成富混合物的燃烧。 废气被引导到燃烧器管周围，并且燃烧供给空气围绕废气管道和外部燃烧器管循环并预热。 富燃料和贫油燃料 - 空气混合物在相对较低的温度下分开燃烧，随后从燃烧器管中混合火焰导致低NOx排放，并导致最终火焰包络的高亮度。

    Method and apparatus for rapid high temperature ladle preheating
    8.
    发明授权
    Method and apparatus for rapid high temperature ladle preheating 失效
    快速高温钢包预热的方法和装置

    公开(公告)号：US4718643A

    公开(公告)日：1988-01-12

    申请号：US863862

    申请日：1986-05-16

    Applicant: Grigory M. Gitman

    Inventor： Grigory M. Gitman

    IPC: B22D41/015 ,  F27D23/00

    CPC classification number: B22D41/015 ,  Y10S266/901

    Abstract: This invention relates to ladle heating methods and apparatus. More particularly, this invention pertains to rapid high temperature ladle preheating utilizing an optimized heating cycle by involving oxygen and combustion air preheated by recuperation in the fuel burning process. Controlled oxygen flow directed into the process is used to increase the heat input during the initial preheating phase and to insure maximum efficiency of the system during the soaking phase of ladle preheating. The disclosed ladle preheating station comprises a refractory lined lid including a partially open refractory ring for docking a portion of a ladle rim having a significant protrusion caused by a local accumulation of solidified metal or slag, said refractory lid opening shaped to receive said protrusion within the opening while providing a gap between said metal deposition and the refractory lid. A burning device is located through said refractory lid for combusting fuel with air or oxygen or both and directing high temperature combustion products into the ladle interior. Also disclosed is a means for providing a protective facing for the ladle heater ring where it comes into contact with the ladle rim. The facing comprises stainless steel plates with a soft refractory material between said plates and the main refractory material of the ladle heater.

    Abstract translation: 本发明涉及钢包加热方法和装置。 更具体地说，本发明涉及利用优化的加热循环的快速高温钢包预热，其中包括在燃料燃烧过程中通过回收预热的氧气和燃烧空气。 引导到该过程的受控氧气用于增加初始预热阶段期间的热输入，并确保在钢包预热的均热阶段期间系统的最大效率。 所公开的钢包预热站包括耐火衬里盖，其包括部分打开的耐火环，用于对接具有由固化的金属或炉渣的局部积聚引起的具有显着突起的钢包边缘的一部分，所述耐火盖开口成形为接收所述突起内的所述突起 同时在所述金属沉积和耐火盖之间提供间隙。 燃烧装置通过所述耐火盖设置，用于燃烧具有空气或氧气的燃料或两者，并将高温燃烧产物引导到钢包内部。 还公开了一种用于提供用于钢包加热器环的保护面的装置，其中钢包加热器环与钢包边缘接触。 面板包括在所述板和钢包加热器的主要耐火材料之间具有软质耐火材料的不锈钢板。

    Centralized ladle heating and drying system
    10.
    发明授权
    Centralized ladle heating and drying system 失效
    集中浇包加热干燥系统

    公开(公告)号：US4494927A

    公开(公告)日：1985-01-22

    申请号：US493248

    申请日：1983-05-10

    Applicant: Grigory M. Gitman

    Inventor： Grigory M. Gitman

    IPC: B22D41/015 ,  F27D3/14 ,  F27D3/00 ,  C21B9/00 ,  F24J3/00

    CPC classification number: B22D41/015 ,  F27D3/14

    Abstract: Several ladles (11-14) for receiving hot metals are preheated by applying a lid (40, 42) to the rim of each ladle and directing an open flame through the lid into the ladle. The hot exhaust gases move back through the lid and through a heat exchanger (35-38) to heat the oncoming combustion air, and the exhaust gases from the ladles being preheated are combined and directed through a lid (41) applied to a ladle at a drying station to dry the ladle.

    Abstract translation: 通过将盖（40,42）施加到每个钢包的边缘并将明火通过盖引导到钢包中来预热几个用于接收热金属的钢包（11-14）。 热废气通过盖子并通过热交换器（35-38）移动，以加热迎面而来的燃烧空气，并将来自预热的钢包的废气组合并引导通过施加到钢包的盖（41） 一个烘干站干燥钢包。

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