公开(公告)号：US09677814B2

公开(公告)日：2017-06-13

申请号：US13704749

申请日：2011-06-23

Applicant: Cesare Giavani ,  Nicola Ambrogio Maria Monti

Inventor： Cesare Giavani ,  Nicola Ambrogio Maria Monti

IPC: F27D3/00 ,  C21C5/52 ,  F27B3/08 ,  F27B3/18 ,  F27D13/00 ,  F27D17/00

CPC classification number: F27D3/003 ,  C21C5/5217 ,  C21C5/527 ,  C21C2005/5282 ,  F27B3/085 ,  F27B3/186 ,  F27D3/0025 ,  F27D13/002 ,  F27D17/003 ,  F27D17/004 ,  Y02P10/216

Abstract: A process for heating a metal feedstock (31) fed in continuous to a smelting furnace (30) through a second horizontal heating section (34) through which hot discharge fumes collected from said furnace (30) pass, said fumes exerting a heating phase of said feedstock (31), characterized in that, immediately before entering said second heating section (34), the feedstock (31) is subjected to a preheating phase by heating means other than the discharge fumes collected from the smelting furnace (30). In a plant for the embodiment of said process, said different heating means are envisaged inside a first preheating section (33), which is operatively connected with said second heating section (34) by means of an intermediate fume evacuation section (35), the fumes coming from said sections (33) and (34) being conveyed to said section. Said sections (33, 34) preferably have a tunnel configuration.

公开(公告)号：US08241391B2

公开(公告)日：2012-08-14

申请号：US13101519

申请日：2011-05-05

Applicant: Antonio Carlos da Cruz ,  Oskar Wessel Bender

Inventor： Antonio Carlos da Cruz ,  Oskar Wessel Bender

IPC: C22B7/00 ,  C22B4/08

CPC classification number: C22B21/0092 ,  C22B1/216 ,  C22B7/003 ,  C22B7/04 ,  C22B9/20 ,  C22B21/0069 ,  F27B3/06 ,  F27B3/085 ,  F27B3/20 ,  F27B7/12 ,  F27B7/2083 ,  F27B7/2206 ,  F27D17/003 ,  Y02P10/214 ,  Y02P10/218

Abstract: A process for the treatment of loads or residues of non-ferrous metals and their alloys includes the steps of loading of scraps or dross to be processed and heating the load and melting the metal. The process additionally includes revolving the heated load, tapping the molten metal and emptying a cavity of the furnace. Heating of the load or residues to a temperature above the melting temperature of the metal or non-ferrous alloy to be recovered is carried out by a free burning convective arc which is independent from the supply of external gas to the process, and which may dispense with the use of melting salts.

Abstract translation: 用于处理有色金属及其合金的载荷或残余物的方法包括加载待处理的废渣或渣滓的步骤，加热载体并熔化金属。 该方法还包括旋转加热负载，攻破熔融金属并排空炉的空腔。 将负载或残留物加热到高于要回收的金属或非铁合金的熔融温度的温度下，通过自由燃烧的对流电弧进行，该电弧独立于向工艺供应的外部气体，并且可以分配 使用熔盐。

公开(公告)号：US20100319348A1

公开(公告)日：2010-12-23

申请号：US12787169

申请日：2010-05-25

Applicant: Jeremy A. JONES ,  Qinghua XIE ,  Paykan SAFE

Inventor： Jeremy A. JONES ,  Qinghua XIE ,  Paykan SAFE

IPC: F01K27/00 ,  F01K13/00

CPC classification number: F22B1/183 ,  F01K3/00 ,  F27B3/26 ,  F27D17/003 ,  F27D17/004 ,  Y02P80/152

Abstract: A waste heat recovery system in which hot waste fluids, such as flue gasses, pass through a fluid heat exchanger configured to transfer energy in the form of heat to a heat transfer liquid, preferably molten salt. The energy in the molten salt is used to generate useable power such as electrical energy. The waste gas heat recovery system is especially adapted for use with batch processes, such as steelmaking and copper converting, and allows continuous or substantially continuous power production.

Abstract translation: 废热回收系统，其中诸如烟道气的热废液通过构造成以热的形式将能量转移到传热液体，优选熔融盐的流体热交换器。 熔盐中的能量用于产生可用的功率，例如电能。 废气热回收系统特别适用于诸如炼钢和铜转化之类的分批工艺，并允许连续或基本连续的发电生产。

公开(公告)号：US20100208765A1

公开(公告)日：2010-08-19

申请号：US12371361

申请日：2009-02-13

Applicant: Christopher CARLSON ,  David COLE ,  Kegan DREW ,  Christopher MANNING

Inventor： Christopher CARLSON ,  David COLE ,  Kegan DREW ,  Christopher MANNING

IPC: F27D17/00 ,  C21B15/00

CPC classification number: F27D17/003 ,  C21C5/5211 ,  C21C2005/5288 ,  F27B3/28 ,  F27D19/00 ,  F27D21/00 ,  Y02P10/216

Abstract: A furnace damper control system and method thereof including a furnace having at least one opening through which electromagnetic radiation from within the furnace may be sensed, an exhaust duct capable of receiving an exhaust gas stream emerging from the furnace, and a controllable damper capable of adjusting the pressure in the exhaust duct. A sensor is capable of sensing electromagnetic radiation through one or more of the openings of the furnace and generating a sensor signal corresponding to the electromagnetic radiation, and a processor is capable of processing the sensor signal and generating a monitoring signal responsive to a parameter of the electromagnetic radiation indicative of furnace emissions. A controller is capable of controlling the damper responsive to the monitoring signal indicative of the furnace emissions.

Abstract translation: 一种炉阻尼器控制系统及其方法，其包括具有至少一个开口的炉，通过该开口可以感测来自炉内的电磁辐射，能够接收从炉出来的废气流的排气管，以及能够调节 排气管中的压力。 传感器能够通过炉的一个或多个开口感测电磁辐射，并产生对应于电磁辐射的传感器信号，并且处理器能够处理传感器信号并响应于 指示炉排放的电磁辐射。 控制器能够响应于指示炉排放的监视信号来控制阻尼器。

公开(公告)号：US20070138714A1

公开(公告)日：2007-06-21

申请号：US11699606

申请日：2007-01-30

Applicant: Harald Berger ,  Peter Mittag ,  Bernhard Aigner

Inventor： Harald Berger ,  Peter Mittag ,  Bernhard Aigner

IPC: C21C5/52

CPC classification number: C21B13/12 ,  C21B13/14 ,  C21C5/527 ,  C21C5/565 ,  F27B3/065 ,  F27B3/10 ,  F27B3/183 ,  F27D17/003 ,  F27D2003/127 ,  Y02P10/216

Abstract: In a method and a device for melting down metal-containing material, preferably fine-particulate metal-containing material, such as sponge iron, in a metallurgical melting furnace (1), wherein, in an interior space (11) of the melting furnace (1), a metal melt (5) and a slag layer (6) floating on top of the metal melt (5) are maintained, the metal-containing material is added by means of a supply means dipping into the slag layer (6) and energy is added in the form of electric arcs (14), the metal-containing material is charged directly into the central region (Z) of the melting furnace (1) by means of at least one charging tube (8) exclusively serving for conveying material via the charging tube outlet (9) of the same, the electric arcs (14) are directed obliquely towards the metal melt (5) against the central region (Z) of the melting furnace (1) and the metal-containing material is melted in the slag layer (6) and a mixed process slag-metal melt is maintained in the region of the charging tube outlet (9). (FIG. 1).

Abstract translation: 在冶金熔化炉（1）的熔化炉（1）的内部空间（11）的熔融炉（1）的熔融炉（1）的熔融炉（1）的熔融炉（1）的熔融炉内， （1）中，保持金属熔体（5）和漂浮在金属熔体（5）的顶部上的熔渣层（6），通过浸入炉渣层（6）中的供给装置添加含金属材料 ）和能量以电弧（14）的形式添加，所述含金属材料通过至少一个仅供给的充电管（8）直接装入熔炉（1）的中心区域（Z） 为了通过其充电管出口（9）输送材料，电弧（14）相对于熔化炉（1）的中心区域（Z）倾斜地朝向金属熔体（5）并且含金属 材料在渣层（6）中熔化，混合工艺渣金属熔体是主要的 污染在充电管出口（9）的区域中。 （图1 ）。

公开(公告)号：US06440195B1

公开(公告)日：2002-08-27

申请号：US09509323

申请日：2000-03-21

Applicant: Rodney James Dry

Inventor： Rodney James Dry

IPC: C21B1312

CPC classification number: C21B13/0026 ,  C21B13/0013 ,  C21B13/14 ,  C21C5/56 ,  C22B5/18 ,  F27B3/18 ,  F27B3/225 ,  F27D13/00 ,  F27D17/003 ,  F27D2009/0013 ,  Y02P10/136

Abstract: A process and an apparatus for producing metals from a metalliferous feed material are disclosed. The process includes the steps of partially reducing and at least partially melting a metalliferous feed material in a pre-reduction/melting means and completely reducing the partially reduced feed material in a reduction means. The pre-reduction/melting means is positioned directly above the reduction means and communicates with the reduction means so that at least partially molten, partially reduced feed material flows downwardly into a central region of the reduction means. The reduction means includes a vessel that contains a molten bath having a metal layer and a slag layer on the metal layer. The process includes injecting oxygen-containing gas into the reduction means and post-combusting reaction gas generated in the molten bath and injecting oxygen-containing gas into the pre-reduction/melting means and post-combusting reaction gas discharged from the reduction means. The process further includes injecting solid carbonaceous material and a carrier gas into a metal rich region of the molten bath and causing upward movement of splashes, droplets and streams of molten material which forms a transition zone.

Abstract translation: 公开了一种用于从含金属进料中生产金属的方法和设备。 该方法包括以预还原/熔化装置部分还原和至少部分熔化含金属进料的步骤，并且在还原装置中完全还原部分还原的进料。 预还原/熔化装置直接定位在还原装置上方并与还原装置连通，使得至少部分熔融的部分还原的原料向下流入还原装置的中心区域。 还原装置包括在金属层上含有金属层和熔渣层的熔池的容器。 该方法包括将含氧气体注入到还原装置中并在熔池中产生的后燃烧反应气体，并将含氧气体注入预还原/熔融装置，并从还原装置排出的后燃烧反应气体。 该方法还包括将固体碳质材料和载气注入熔池的富金属区域，并引起形成过渡区的熔融材料的飞溅，液滴和物流的向上运动。

公开(公告)号：US06301285B1

公开(公告)日：2001-10-09

申请号：US09654630

申请日：2000-09-05

Applicant: Christopher Z. Sieradzki ,  Craig L. Peters

Inventor： Christopher Z. Sieradzki ,  Craig L. Peters

IPC: F27D1700

CPC classification number: F27D17/003 ,  F27B3/065 ,  F27B3/085 ,  F27B3/28 ,  F27D17/008 ,  F27D2007/045

Abstract: The present invention provides a system and method for collecting fumes from an arc furnace of the type typically used in metal foundries. The system provides an electrode hood with extended sides for improved collection of fumes from the vicinity of the electrodes. It also provides a movable spout hood for collection of fumes when metal is tapped. The furnace is tilted when metal is tapped. A tilting duct is connected to provide a path for emissions drawn into the hood on the furnace. The tilting duct moves with the furnace. A stationary duct leads to the bag house. The tilting duct and stationary duct meet at an interface and have facing openings that maintain a path for collecting fumes throughout the entire range of motion of the furnace. The stationary duct has a group of dampers that open and close as the furnace tilts to limit air intake to the portion of the stationary duct opening that is adjacent the tilting duct opening. Variable position dampers may be provided at the electrode hood and furnace door. In the bag house, there is a dust containment assembly to limit the movement of the collected dust. A variable speed fan may be used with the system.

Abstract translation: 本发明提供一种用于从通常用于金属铸造厂的电弧炉中收集烟雾的系统和方法。 该系统提供具有延伸侧面的电极罩，用于改善从电极附近收集的烟雾。 它还提供一个可移动的喷口，用于在金属被攻丝时收集烟雾。 当金属被攻丝时，炉子倾斜。 连接倾斜管道以提供吸入炉内的发动机排放的路径。 倾斜管道与炉子一起移动。 固定的导管通向袋子房。 倾斜管道和固定管道在界面处相交并且具有面对的开口，其保持用于在炉的整个运动范围内收集烟雾的路径。 固定管道具有一组阻尼器，当炉子倾斜时打开和关闭，以将进气限制在与倾斜管道开口相邻的固定管道开口部分。 可以在电极罩和炉门设置可变位置阻尼器。 在袋子的房子里，有一个集尘装置来限制收集的灰尘的运动。 系统可以使用变速风扇。

公开(公告)号：US06175584B1

公开(公告)日：2001-01-16

申请号：US09482949

申请日：2000-01-14

Applicant: Milorad Pavlicevic ,  Peter Tishchenko ,  Alfredo Poloni ,  Angelico Della Negra

Inventor： Milorad Pavlicevic ,  Peter Tishchenko ,  Alfredo Poloni ,  Angelico Della Negra

IPC: F27D1700

CPC classification number: F27D17/003 ,  F27B3/24

Abstract: Aspiration system to reduce the losses of fine materials and powders from an electric arc furnace having a lower hearth suitable to contain the bath of metal material being melted, a substantially cylindrical chamber arranged above the hearth, at least one electrode arranged in a central zone of the chamber and a roof arranged to cover the chamber and provided with at least one aperture through which the fumes produced by the bath can exit, the system comprising a first aspiration sub-system arranged inside the chamber and at least another discharge sub-system arranged in correspondence with the roof, the first aspiration sub-system comprising a coil of cooling pipes arranged helical so as to define, in a vertical direction, empty zones between the spirals of pipes, the coil of cooling pipes being distanced from the cylindrical wall of the chamber to define a peripheral interspace through which the fumes can ascend towards the roof according to at least an ascensional, rotatory vortex.

Abstract translation: 一种吸引系统，用于减少来自具有适于容纳熔融的金属材料浴的下炉的电弧炉的细料和粉末的损失，布置在炉床上方的大致圆柱形的室，布置在炉床的中心区域中的至少一个电极 所述室和屋顶布置成覆盖所述室并且设置有至少一个孔，所述浴产生的烟雾可以穿过所述孔排出，所述系统包括布置在所述室内的第一抽吸子系统和布置在所述室中的至少另一个排出子系统 与屋顶相对应的第一抽吸子系统包括螺旋排列的冷却管线圈，以便在竖直方向上限定管道螺旋之间的空区，冷却管线圈与圆柱形壁的间隔开 所述室限定外围空间，烟雾可以根据至少上升的旋转涡流朝着屋顶上升。

公开(公告)号：US5999556A

公开(公告)日：1999-12-07

申请号：US296951

申请日：1999-04-22

Applicant: Manfred Haissig

Inventor： Manfred Haissig

IPC: F27B3/18 ,  F27B3/20 ,  F27B3/22 ,  F27B3/24 ,  F27B3/28 ,  F27D3/15 ,  F27D3/16 ,  F27D17/00 ,  F27D19/00 ,  F27D99/00

CPC classification number: F27B3/225 ,  F27B3/186 ,  F27B3/24 ,  F27B3/28 ,  F27D17/003 ,  F27D17/004 ,  C21C2005/5288 ,  C21C5/305 ,  F27B3/205 ,  F27D2019/0015 ,  F27D2099/0048 ,  F27D3/1545 ,  F27D3/16 ,  Y02P10/216

Abstract: An electric arc furnace comprises a closed melting vessel and includes means for charging metal to be molten into the melting vessel. At least one electrode extends into the melting vessel and generates an electric arc and forms a molten metal bath. At least one oxygen lance can be extended into the melting vessel for injecting oxygen into the molten metal bath and create a reaction where the carbon monoxide is generated. Gas is exhausted from the melting vessel and the carbon monoxide gas concentration of the exhaust gas is measured. A post combustion chamber receives the exhaust gas and provides post combustion of the exhaust gas. Post combustion oxygen is injected into the melting vessel in an amount sufficient to provide post combustion based on the amount of oxygen necessary for post combustion of the exhaust gas and the post combustion chamber.

Abstract translation: 电弧炉包括封闭的熔化容器，并且包括用于将要熔化的金属装入熔化容器的装置。 至少一个电极延伸到熔化容器中并产生电弧并形成熔融金属浴。 至少一个氧枪可以延伸到熔融容器中，用于将氧气注入到熔融金属浴中，并产生产生一氧化碳的反应。 从熔融容器排出气体，测定废气的一氧化碳气体浓度。 后燃烧室接收废气并提供废气的后燃烧。 后燃烧氧气以足以提供后燃烧的量基于废气和后燃烧室的后燃烧所需的氧气量注入熔融容器中。

公开(公告)号：US5956365A

公开(公告)日：1999-09-21

申请号：US206311

申请日：1998-12-07

Applicant: Manfred Haissig

Inventor： Manfred Haissig

IPC: F27B3/18 ,  F27B3/20 ,  F27B3/22 ,  F27B3/24 ,  F27B3/28 ,  F27D3/15 ,  F27D3/16 ,  F27D17/00 ,  F27D19/00 ,  F27D99/00 ,  F27D13/00

CPC classification number: F27B3/225 ,  F27B3/186 ,  F27B3/24 ,  F27B3/28 ,  F27D17/003 ,  F27D17/004 ,  C21C2005/5288 ,  C21C5/305 ,  F27B3/205 ,  F27D2019/0015 ,  F27D2099/0048 ,  F27D3/1545 ,  F27D3/16 ,  Y02P10/216

Abstract: An electric arc furnace comprises a closed melting vessel and includes a roof through which metal to be molten is charged into the melting vessel. At least one electrode extends into the melting vessel and generates an electric arc and forms a molten metal bath. At least one oxygen lance can be extended into the melting vessel for injecting oxygen into the molten metal bath and create a reaction where the carbon monoxide is generated. Gas is exhausted from the melting vessel and the carbon monoxide gas concentration of the exhaust gas is measured. A post combustion chamber receives the exhaust gas and provides post combustion of the exhaust gas. Post combustion oxygen is injected into the melting vessel in an amount sufficient to provide post combustion based on the amount of oxygen necessary for post combustion of the exhaust gas and the post combustion chamber.

Abstract translation: 一种电弧炉包括一个封闭的熔化容器，并包括一个屋顶，待熔化的金属通过该屋顶被加入到熔化容器中。 至少一个电极延伸到熔化容器中并产生电弧并形成熔融金属浴。 至少一个氧枪可以延伸到熔融容器中，用于将氧气注入到熔融金属浴中，并产生产生一氧化碳的反应。 从熔融容器排出气体，测定废气的一氧化碳气体浓度。 后燃烧室接收废气并提供废气的后燃烧。 后燃烧氧气以足以提供后燃烧的量基于废气和后燃烧室的后燃烧所需的氧气量注入熔融容器中。