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71. 发明申请

US20210355554A1 PRODUCTION APPARATUS AND METHOD FOR ELECTRIC ARC FURNACE STEELMAKING WITH FULLY CONTINUOUS ULTRA-SHORT PROCESS 有权
公开(公告)号：US20210355554A1
公开(公告)日：2021-11-18
申请号：US17124506
申请日：2020-12-17
申请人： University of Science and Technology Beijing
发明人： Rong ZHU , Bohan TIAN , Kai DONG , Guangsheng WEI , Rongfang SU
IPC分类号： C21B13/12 , F27B3/19
摘要： A production apparatus and method for electric arc furnace steelmaking with a fully continuous ultra-short process are provided. A continuous adding, melting, smelting and continuous casting of a metal material are integrated, and a metallurgy process is completed in a flowing of a molten steel, to realize a continuous production of ingot blanks. The production apparatus includes four operation sites of an electric arc furnace for melting and primary refining, a sealed tapping chute for molten steel flowing, a refinement storage bed for molten-steel desulfurization and alloying and a conticaster for continuous casting A material flow, an energy flow and a time stream in the four operation sites are in a dynamic equilibrium. The production apparatus and method realize a molten-steel casting is started within 120 minutes after the metal material is started to be continuously added, and an uninterrupted continuous production is maintained for above 80 hours.

72. 发明申请

US20210214812A1 Method and apparatus for the production of cast iron, cast iron produced according to said method 有权
公开(公告)号：US20210214812A1
公开(公告)日：2021-07-15
申请号：US17214401
申请日：2021-03-26
申请人： TENOVA S.P.A.
发明人： Francesco Memoli , Cesare Giavani , Silvio Maria Reali , Kyle James Shoop
IPC分类号： C21B13/14 , C21B13/00 , C21B13/12 , C21C1/08 , C21C5/52 , B22F9/08 , C21B11/10 , C22C33/02 , C22C33/08 , C22C37/00
摘要： A method for the production of cast iron starting from pre-reduced iron ore (DRI) with an electric arc furnace includes the steps of preparing a charge of pre-reduced iron ore DRI having a metallization higher than 90% and containing over 2.8% by weight of carbon, wherein at least 80% of the carbon is combined with the iron to form iron carbide Fe3C; charging the charge of pre-reduced iron ore into the electric arc furnace; and melting the DRI charge to form liquid cast iron having at least 80% by weight of actual carbon content deriving from the carbon in the charge of pre-reduced iron ore, the melting step being in a reducing atmosphere and in a melting chamber of the electric arc furnace subjected to a positive internal pressure generated by the gases produced by reduction reactions that develop during melting.

73. 发明申请

US20210176835A1 SPRAY COOLING FURNACE ELECTRODES WITH A COOLING LIQUID THAT CONTAINS SURFACTANTS 有权
公开(公告)号：US20210176835A1
公开(公告)日：2021-06-10
申请号：US17255272
申请日：2019-10-15
申请人： CHEMTREAT, INC.
发明人： Joseph S. STRASSER , Jeffrey R. TANSKI
IPC分类号： H05B7/12 , C21C5/52 , C21B13/12 , F27B14/06 , F27B14/08 , F27D9/00
摘要： A method for cooling furnace electrodes using a cooling liquid containing surfactants. This method can be applied to electrodes used in electric arc furnaces and ladle metallurgy furnaces. The method can involve spraying the cooling liquid onto the electrode, thereby lowering the temperature of the electrode and reducing electrode consumption.

74. 发明申请

US20200207665A1 REFRACTORY BATCH, A METHOD FOR PRODUCING AN UNSHAPED REFRACTORY CERAMIC PRODUCT FROM THE BATCH AND AN UNSHAPED REFRACTORY CERAMIC PRODUCT OBTAINED BY THE METHOD 审中-公开
公开(公告)号：US20200207665A1
公开(公告)日：2020-07-02
申请号：US16643267
申请日：2018-11-08
申请人： Refractory Intellectual Property GmbH & Co. KG
发明人： Stefan Heid , Roland Nilica
IPC分类号： C04B35/04 , C04B35/626 , C04B35/634 , C04B35/63 , C21B13/12
摘要： The invention relates to a refractory batch, to a method for producing an unshaped refractory ceramic product from the batch, and to an unshaped refractory ceramic product obtained by said method.

75. 发明授权

US10060677B2 Equipment for measurement and control of load material or scrap feeding into a furnace and relative method 有权
公开(公告)号：US10060677B2
公开(公告)日：2018-08-28
申请号：US14882398
申请日：2015-10-13
申请人： Paolo Argenta , Silvio Reali , Claudio Lodati , Mauro Bianchi Ferri
发明人： Paolo Argenta , Silvio Reali , Claudio Lodati , Mauro Bianchi Ferri
IPC分类号： F27D13/00 , F27D3/00 , F27D21/00 , C21C5/52 , C21C5/56 , F27B3/18 , F27B3/28 , F27B7/28 , C21B13/12 , F27D19/00
CPC分类号： F27D21/0035 , C21B13/12 , C21C5/527 , C21C5/567 , C21C2005/5288 , C21C2300/02 , F27B3/183 , F27B3/28 , F27B7/28 , F27D3/0024 , F27D3/0025 , F27D19/00 , F27D2019/0075 , Y02P10/216 , Y02W30/54
摘要： Equipment for the measurement and control of load material and scrap metal feeding into an electrical arc furnace includes an automatic control device for feeding control of load material or scrap according to the energy supplied to the bath, and a measuring device for the added load material, in correlation with the automatic control device, and a weighing device for the furnace shell, its contents and any other components it may support.

76. 发明申请

US20180209012A1 REDUCED IRON MANUFACTURING METHOD 审中-公开
公开(公告)号：US20180209012A1
公开(公告)日：2018-07-26
申请号：US15577151
申请日：2016-04-26
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
发明人： Yui HOSONO , Masaki SHIMAMOTO , Takao HARADA , Shingo YOSHIDA , Shoichi KIKUCHI , Taiji HATAKEYAMA
IPC分类号： C22B1/24 , C21B13/12
摘要： The reduced iron manufacturing method of the present invention includes preparing an agglomerate by agglomerating a mixture containing an iron oxide-containing substance and a carbonaceous reducing agent, and preparing reduced iron by heating the agglomerate to reduce iron oxide in the agglomerate, characterized in that Expression (I) as follows is satisfied: Cfix×Xunder105/OFeO≤51 (I) where OFeO is the mass percentage of oxygen contained in the iron oxide in the agglomerate, Cfix is the mass percentage of total fixed carbon contained in the agglomerate, and Xunder105 is the mass percentage of particles having a particle diameter of 105 μm or less with respect to the total mass of particles configuring the carbonaceous reducing agent.

77. 发明授权

US09500411B2 Burner and/or injector panel apparatus, methods of installation and use of the same in a metal-melting furnace, and metal-melting furnace including the same 有权
标题翻译：燃烧器和/或注射器面板装置，其在金属熔化炉中的安装和使用方法以及包括其的金属熔化炉
公开(公告)号：US09500411B2
公开(公告)日：2016-11-22
申请号：US14749052
申请日：2015-06-24
申请人： Air Liquide Advanced Technologies U.S. LLC
发明人： Yury Eyfa
IPC分类号： F27B3/20 , C21C5/52 , F27B3/22 , F27D1/12 , C21B13/12 , F27B3/08 , F27D99/00
CPC分类号： F27B3/205 , C21B13/12 , C21C5/5217 , F27B3/085 , F27B3/225 , F27D1/12 , F27D99/0033 , Y02P10/216 , Y10T29/49826
摘要： A burner and/or injector panel apparatus includes a flange rotatable within a cylindrical aperture in a horizontal plate and securely retainable between one or more retaining clips and the plate. Extending downward from the flange is a main body with a cylindrical chamber. A burner, burner/injector, or injector is contained within the cylindrical chamber. The main body has a helical cooling circuit extending around the cylindrical chamber and burner and/or injector. The burner and/or injector panel apparatus may be installed through a furnace wall, especially an electric arc furnace, more particularly, a balcony panel of a sump area of an electric arc furnace. The burner and/or injector panel apparatus may be tilted from horizontal or rotated around its vertical axis in order to better target a target area of a molten bath of metal with a flame, jet of oxygen, or stream of carbon particles.
摘要翻译：燃烧器和/或注射器面板装置包括可在水平板中的圆柱形孔内旋转的凸缘，并可牢固地保持在一个或多个固定夹和板之间。从法兰向下延伸的是具有圆柱形腔室的主体。燃烧器，燃烧器/喷射器或喷射器包含在圆柱形腔室内。主体具有围绕圆柱形腔室和燃烧器和/或喷射器延伸的螺旋形冷却回路。燃烧器和/或注射器面板装置可以通过炉壁，特别是电弧炉，更具体地，电弧炉的贮槽区域的阳台面板安装。燃烧器和/或注射器面板装置可以从水平方向倾斜或围绕其垂直轴线旋转，以便更好地用火焰，氧气射流或碳颗粒物流瞄准金属熔池的目标区域。

78. 发明授权

US09453678B2 Apparatus for manufacturing molten metal 有权
标题翻译：用于制造熔融金属的设备
公开(公告)号：US09453678B2
公开(公告)日：2016-09-27
申请号：US13500790
申请日：2010-10-08
申请人： Masahiko Tetsumoto
发明人： Masahiko Tetsumoto
IPC分类号： F27D99/00 , F27D3/00 , F27B3/08 , C21B13/02 , C21B13/10 , C21B13/12 , F27B3/18 , F27B3/20
CPC分类号： F27B3/08 , C21B13/026 , C21B13/10 , C21B13/12 , F27B3/18 , F27B3/205
摘要： Disclosed is a production device of which secondary combustion efficiency can be further improved when a molten metal is produced by directly reducing and melting a metal agglomerate raw material layer in an electric heating furnace. Specifically, material charging chutes (4, 4) are disposed at either end portion (2, 2) of a furnace in the width direction of the furnace. Electrodes (5) are disposed in a central region in the furnace width direction. Secondary combustion burners (6) are disposed in an upper portion (1) of the furnace having stepped portions descending from both end portions (2, 2) in the furnace width direction to the electrodes (5). Raw material layers (12) each having a downslope inclined to lower portions of the electrodes (5) are formed in advance by charging a carbonaceous material (A) from the chutes (4, 4), and metal agglomerate raw material layers (13) are formed on the slopes of the raw material layers (12) by charging metal agglomerate raw material (B). Molten iron is produced by sequentially melting lower end portions of the metal agglomerate raw material layers (13) by arc heating at the electrodes (5). At the same time, an oxygen containing gas (C) is blown from the secondary combustion burners (6) so as to cause the combustion of a CO containing gas generated from the metal agglomerate raw material layers (13) while the metal agglomerate raw material layers (13) descend along the slopes of the raw material layers (12), and the metal agglomerate raw material layers (13) are heated by the radiant heat of the combustion.
摘要翻译：公开了一种通过在电加热炉中直接还原和熔融金属聚集体原料层来制造熔融金属时可以进一步提高二次燃烧效率的生产装置。具体地说，在炉的宽度方向上的炉子的任一端部（2,2）上设置材料充填槽（4,4）。电极（5）设置在炉宽方向的中央区域。二次燃烧燃烧器（6）设置在炉的上部（1）中，炉的上部（1）具有从炉宽度方向上的两个端部（2,2）向电极（5）下降的阶梯部。通过从滑槽（4,4）中填充碳质材料（A）和金属聚集体原料层（13），预先形成各自具有倾斜于电极（5）下部的下坡的原料层（12）通过填充金属聚集体原料（B）而形成在原料层（12）的斜面上。通过在电极（5）处通过电弧加热依次熔化金属聚集体原料层（13）的下端部来制造熔融铁。同时，从二次燃烧燃烧器（6）吹入含氧气体（C），从而使金属聚集体原料层（13）产生的含CO气体燃烧，同时金属凝聚原料层（13）沿着原料层（12）的斜面下降，金属聚集体原料层（13）被燃烧的辐射热加热。

79. 发明授权

US08979971B2 Process for producing metallic components 有权
标题翻译：金属部件的制造方法
公开(公告)号：US08979971B2
公开(公告)日：2015-03-17
申请号：US13465773
申请日：2012-05-07
申请人： Rainer Schuster
发明人： Rainer Schuster
IPC分类号： C21B11/10 , C21B13/12 , C21C5/52 , C21C5/54 , C22B4/00 , C22B9/22 , B22F3/105 , B22F5/10
CPC分类号： B22F3/1055 , B22F5/003 , B22F5/10 , B22F7/08 , B22F2998/10 , B33Y10/00 , Y02P10/295 , Y10T428/12014 , B22F2003/248 , B22F3/16
摘要： A process for producing a metallic component with an opening or a hollow space by selective laser sintering or laser melting includes melting a metallic powder in layers at appropriate cross-sectional regions by using laser radiation. After the laser sintering or laser melting process, the component is subjected to a fracture splitting process, in which the component is fractured into at least two fractional parts along a fracture line and then the at least two fractional parts are connected to one another at the sites of fracture to form the component. The fracture line contacts or passes through the opening or the hollow space.
摘要翻译：通过选择性激光烧结或激光熔融来制造具有开口或中空空间的金属部件的方法包括通过使用激光辐射在合适的横截面区域层压金属粉末。在激光烧结或激光熔融处理之后，对该部件进行断裂分解处理，其中部件沿断裂线断裂成至少两个分数部分，然后至少两个分数部分彼此连接断裂部位形成部件。断裂线接触或穿过开口或中空空间。

80. 发明申请

US20110239822A1 PRODUCTION OF FERRO-ALLOYS 审中-公开
标题翻译：生产合金
公开(公告)号：US20110239822A1
公开(公告)日：2011-10-06
申请号：US13061452
申请日：2009-08-28
申请人： Paul Anthony Vielhauer , Paul James O'kane , Jonathan David Dicker , Catherine Louise Skidmore
发明人： Paul Anthony Vielhauer , Paul James O'kane , Jonathan David Dicker , Catherine Louise Skidmore
IPC分类号： C21C5/52 , C21B11/10 , C21B13/12
CPC分类号： C22B5/10 , C21C5/5217 , C21C5/527 , C21C5/54 , C21C2007/0062 , C21C2300/02 , C22B4/06 , C22C33/00 , F27B3/10 , F27B3/18 , Y02P10/216
摘要： A method for producing a ferro-alloy, such as steel, in an electric arc furnace or other suitable metallurgical furnace is disclosed. The method comprises supplying a mixture of (a) a carbon-containing polymer that is capable of acting as a slag foaming agent and (b) another source of carbon into the furnace during at least a part of a power-on phase of the method. A metallurgical furnace is also disclosed.
摘要翻译：公开了一种在电弧炉或其它合适的冶金炉中生产诸如钢之类的铁合金的方法。该方法包括在该方法的通电阶段的至少一部分期间，将（a）能够充当炉渣发泡剂的含碳聚合物和（b）另一碳源的混合物。还公开了一种冶金炉。

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