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

    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

    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。

    Recuperative furnace wall
    4.
    发明授权
    Recuperative furnace wall 失效
    再生炉壁

    公开(公告)号:US4664618A

    公开(公告)日:1987-05-12

    申请号:US642075

    申请日:1984-08-16

    CPC classification number: F27D1/00 F23L15/04 F23M5/00 F27D17/004 Y02E20/348

    Abstract: The present invention relates to a method and apparatus for waste heat recovery and reduction in industrial furnaces and heating equipment. The method of heat recovery comprises directing the exhaust gases through a system of channels inside the refractory wall where heat from the flue gases is transferred to the refractory lining and also to the combustion air traveling inside of a heat exchanger also located inside said channels. The high temperature exhaust flue gases traveling along said channels increase the hot face temperature of the refractory wall and reduce the heat flux from the working chamber through the refractory wall. An apparatus for the realization of the heat recovery method includes a flue duct, a recuperator, hot air piping and a hot air burner, all located inside the furnace wall refractory lining.

    Abstract translation: 本发明涉及工业炉和加热设备中废热回收和还原的方法和装置。 热回收的方法包括引导排气通过耐火壁内的通道系统,其中来自烟道气的热量被传送到耐火衬里,并且还引导到也位于所述通道内的热交换器内部的燃烧空气。 沿着所述通道行进的高温废气烟道气增加耐火壁的热面温度,并减少从工作室穿过耐火墙的热通量。 用于实现热回收方法的装置包括烟道,换热器,热空气管道和热空气燃烧器,全部位于炉壁耐火衬里内。

    Centralized ladle heating and drying system
    5.
    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:US4432726A

    公开(公告)日:1984-02-21

    申请号:US418798

    申请日:1982-09-16

    CPC classification number: F27D3/14 B22D41/015

    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桶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,并且将来自预热的钢包的废气组合并引导通过施加到干燥站的钢包的盖41 干勺子

    Method and apparatus for rapid high temperature ladle preheating
    6.
    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

    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
    8.
    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

    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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