公开(公告)号：US06549557B1

公开(公告)日：2003-04-15

申请号：US09860887

申请日：2001-05-18

申请人： Brian Bowman

发明人： Brian Bowman

IPC分类号： H05B722

CPC分类号： H05B7/20 ,  F27B3/085 ,  H05B7/06 ,  H05B7/144 ,  Y02P10/256 ,  Y02P10/259

摘要： An AC arc furnace has a plurality of electrodes arranged inside a furnace chamber enclosed by a shell. Each electrode is electrically connected to an electrode power source in series through corresponding auxiliary electromagnetic coils. The electromagnetic coils are arranged around the furnace shell in a pre-defined geometric pattern proximate the corresponding electrodes so that when each of the electrodes receives power from the power source and generates an arc inside the furnace, external magnetic fields are generated by the corresponding series connectedelectromagnetic coils. The external magnetic fields penetrate the shell to control deflection of the arcs caused by internal magnetic fields.

摘要翻译： 交流电弧炉具有多个电极，该多个电极布置在由壳体包围的炉室内部。 每个电极通过相应的辅助电磁线圈串联电连接到电极电源。 电磁线圈以邻近相应电极的预先定义的几何图案布置在炉壳周围，使得当每个电极从电源接收电力并在炉内产生电弧时，通过相应的系列产生外部磁场 连接电磁线圈。 外部磁场穿透壳体以控制由内部磁场引起的电弧偏转。

公开(公告)号：US06377602B1

公开(公告)日：2002-04-23

申请号：US09600896

申请日：2000-07-24

申请人： Bruno Aita ,  Fernando Clocchiatti

发明人： Bruno Aita ,  Fernando Clocchiatti

IPC分类号： H05B722

CPC分类号： C21C5/5217 ,  F27B3/225 ,  Y02P10/216

摘要： Method and device to feed tuyeres in an electric furnace, the tuyeres comprising a central conduit to deliver a comburent gaseous substance and a peripheral conduit to deliver a cooling gaseous substance, the method providing to send to the central conduit a comburent mixture consisting of oxygen and neutral gas (N2, Ar, etc.) in defined percentages, the oxygen and the neutral gas being fed, for each of the tuyeres, to a mixing device with a high mixing capacity, at least the pressure of the neutral gas being able to be adjusted on the relative feed line so as to modulate the pressure of the mixture according to the characteristics of the melting process.

摘要翻译： 用于在电炉中进口风口的方法和装置，所述风口包括用于输送组合气体物质的中心导管和用于输送冷却气体物质的外围导管，所述方法提供向中心导管发送由氧和 中性气体（N 2，Ar等）以确定的百分比计，将每个风口的氧气和中性气体进料到具有高混合能力的混合装置，至少中性气体的压力能够 在相对进料管线上进行调节，以根据熔融过程的特性调节混合物的压力。

公开(公告)号：US06614831B2

公开(公告)日：2003-09-02

申请号：US09902139

申请日：2001-07-10

申请人： Valery G. Shver

发明人： Valery G. Shver

IPC分类号： H05B722

CPC分类号： F27D9/00 ,  C21C5/462 ,  C21C5/5217 ,  C21C2005/4626 ,  F27B3/205 ,  F27B3/225 ,  F27D1/12 ,  F27D2009/0045 ,  H05B7/185 ,  Y02P10/216

摘要： A mounting enclosure and an improved mounting arrangement for apparatus used in metal melting, refining and processing, particularly those apparatus adapted for steel making in an electric arc furnace, such as burners, lances and the like with supersonic oxygen lancing capability and injectors or the like for the introduction of particulate matter. The mounting enclosure is fluid cooled to survive the hostile environment of the electric arc furnace and is designed to occupy the step between the side wall and hearth of the furnace without any substantial change to the structure of the furnace. The mounting enclosure comprises a plurality of fluid cooling conduits surrounding an apparatus aperture and an injector aperture which are formed through the enclosure and adapted to mount an apparatus and an injector. The mounting arrangement includes utilizing the mounting enclosure to mount an apparatus with supersonic oxidizing gas lancing capability and an injector for particulate carbon in an electric arc furnace. Because the mounting enclosure is approximately the width of the step, the discharge openings of the apparatus and the injector are moved closer to the surface of the melt and toward the center of the furnace thereby providing increased efficiency. The discharge openings will now be extended to near the edge of the step so that the oxidizing gas flow pattern of the apparatus does not degrade the hearth material or other furnace equipment mounted nearby and the carbon flow pattern of the injector sufficiently agitates the slag to produce foaming.

公开(公告)号：US06490312B1

公开(公告)日：2002-12-03

申请号：US09806848

申请日：2001-04-04

申请人： Fritz-Peter Pleschiutschnigg ,  Wei-Ping Wu

发明人： Fritz-Peter Pleschiutschnigg ,  Wei-Ping Wu

IPC分类号： H05B722

CPC分类号： C21C5/5229 ,  C21B13/026 ,  C21B13/12 ,  C21C5/565 ,  F27B3/085 ,  F27B3/186 ,  F27D17/003 ,  Y02P10/216

摘要： A direct-current arc furnace for producing steel has a smelting vessel with electrodes, tapping openings for the molten mass and slag, and a device for a direct removal of exhaust gases. The smelting vessel is extended upwardly by a central shaft for introducing melt-down material into the vessel. The extension of the central shaft forms a melt-down material column. A shaft suction device is provided as an extension of the shaft for removal of the exhaust gases during the smelting process. Adjacent to the shaft openings are provided in the upper part of the smelting vessel for receiving a vessel suction device for dust and/or gases resulting during the charging process of the melt-down material. The shaft suction device and the vessel suction device are connected to a common device and switching elements are provided for actuating only one suction device and/or adjusting a combination of the exhaust gas flows dependent on the charging and smelting process.

摘要翻译： 用于生产钢的直流电弧炉具有带电极的熔炼容器，用于熔融物料和炉渣的出料口，以及用于直接除去废气的装置。 熔融容器由中心轴向上延伸，用于将熔化材料引入容器中。 中心轴的延伸部形成熔化材料柱。 轴抽吸装置设置为用于在冶炼过程中排出废气的轴的延伸部。 在熔融容器的上部附近设置有轴开口，用于在熔化材料的装料过程中接收用于灰尘和/或气体的容器抽吸装置。 轴抽吸装置和容器抽吸装置连接到共同的装置，并且提供开关元件以仅驱动一个抽吸装置和/或根据充电和熔炼过程来调整排气流的组合。

公开(公告)号：US06289035B1

公开(公告)日：2001-09-11

申请号：US09502064

申请日：2000-02-10

申请人： Valery G. Shver

发明人： Valery G. Shver

IPC分类号： H05B722

CPC分类号： H05B7/185 ,  C21C5/462 ,  C21C5/5217 ,  F27B3/205 ,  F27B3/225 ,  F27D1/12 ,  F27D2009/0045 ,  Y02P10/216

摘要： A mounting block and an improved mounting arrangement for apparatus used in metal melting, refining and processing, particularly those apparatus adapted to steel making in an electric arc furnace, such as burners, lances and the like with supersonic oxygen lancing capability. The mounting block is fluid cooled to survive the hostile environment of the electric arc furnace and is designed to rest on the step between the side wall and hearth of the furnace without any substantial change to the structure of the furnace. The mounting block comprises a plurality of fluid cooling conduits surrounding an aperture which is formed through the block and adapted to mount the apparatus. The mounting arrangement includes utilizing the mounting block to mount an apparatus with supersonic oxidizing gas or lancing capability in an electric arc furnace. The apparatus is mounted by passing it through an aperture in a water cooled side panel aligned with the mounting aperture in the mounting block. Because the mounting block is approximately the width of the step, the discharge opening of the apparatus is moved closer to the surface of the melt and toward the center of the furnace thereby providing increased efficiency. The discharge opening will now also extend past the inner edge of the step so that the oxidizing gas flow pattern does not degrade the hearth material and other furnace equipment mounted nearby.

摘要翻译： 特别是适用于具有超音速氧气穿刺能力的电弧炉（例如燃烧器，喷枪等）中的钢铁制造的装置的安装块和改进的用于金属熔化，精炼和加工的装置的安装布置。 安装块被流体冷却以在电弧炉的恶劣环境下存活，并且被设计成搁置在炉的侧壁和炉膛之间的台阶上，而对炉的结构没有任何实质的改变。 安装块包括围绕孔的多个流体冷却导管，其形成为穿过该块并适于安装该装置。 安装装置包括利用安装块在电弧炉中安装具有超音速氧化气体或穿刺能力的装置。 通过将装置通过与安装块中的安装孔对准的水冷侧板中的孔安装。 由于安装块大致为台阶的宽度，所以设备的排出口移动到更靠近熔体的表面并且朝向炉的中心，从而提高效率。 排出口现在也将延伸超过台阶的内边缘，使得氧化气体流动图案不会降低炉附近和其他附近安装的炉子设备。