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公开(公告)号：US20170261263A1
公开(公告)日：2017-09-14
申请号：US15511480
申请日：2015-08-25
摘要： A tap on a metallurgical vessel, in particular an electric arc furnace, is provided with a refractory end brick (6) that has an outlet opening (10). There is assigned to the lower face surface (11) of the end brick (6) a slot (15) which is shaped such that with the latter a tear-off edge (16) is generated on the outlet opening (10) when emptying the vessel. This slot (15) is annular in form and is provided here with a radially outwardly inclined inclined surface (18), and this tear-off edge (16) is thus formed immediately following the outlet opening (10). Thus, after each tapping process, the tap can be cleaned without manual assistance by shearing off with the front edge of the plate of the closure device.
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公开(公告)号：US09664444B2
公开(公告)日：2017-05-30
申请号：US13989711
申请日：2011-08-30
申请人： Joon-Seong Ki , Jin-Ill Hwang
发明人： Joon-Seong Ki , Jin-Ill Hwang
IPC分类号： F27D3/00 , F27D1/00 , C21B9/10 , F27B3/10 , F27B3/08 , F27B3/19 , F27D1/18 , F27D3/15 , C21C5/54 , C21B3/04 , F27D3/16
CPC分类号： F27B3/105 , C21B3/04 , C21C5/54 , C21C2300/02 , F27B3/085 , F27B3/19 , F27D1/1858 , F27D3/1545 , F27D3/1554 , F27D2001/1875 , F27D2003/168 , Y02P10/216
摘要： A slag discharge door device for an electric furnace is provided. The device prevents slag from flowing out via a slag discharge port by making a discharge control door body move up and down to and from the upper surface of a supporting body where slag is discharged by flowing to the upper surface, and the discharge of slag is controlled, such that during steel-making work in the electric furnace, the outflow of slag is prevented and heat losses are reduced, the efficiency of arc heat due to the formation of foamed slag is increased, and valuable metals are recovered from the molten slag thereby increasing the percentage of molten steel recovered.
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公开(公告)号：US09612055B1
公开(公告)日：2017-04-04
申请号：US14969562
申请日：2015-12-15
申请人： Bruno Thut
发明人： Bruno Thut
摘要： A kit enables selective circulation and transfer of molten metal of a furnace. The kit includes a transfer block of refractory material adapted to be disposed downstream of a refractory pump wall of a pump well. The block includes a transfer passageway that extends from alignment with an opening in the pump wall toward an exterior vessel outside the furnace. A support structure can be adapted to be fixed over the furnace. Pulleys can be carried by the support structure. An actuator can be positioned outside of the furnace. A cable can be fastened at one end portion to the transfer block and at another end portion to the actuator and extends around the pulleys. When actuated in one stroke the actuator moves the cable so as to move the block upward out of alignment with the pump wall opening to cause molten metal circulation. When actuated in another stroke the actuator moves the cable to permit the transfer block to move downward into alignment with the pump wall opening to carry out transfer of molten metal to the vessel. Also featured is a furnace including a kit or a selective transfer and circulation device, and a method of installing the kit or device in a furnace.
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公开(公告)号：US09416430B2
公开(公告)日：2016-08-16
申请号：US13984106
申请日：2012-02-27
申请人： Graham Guest
发明人： Graham Guest
IPC分类号： F27D27/00 , C21C5/52 , B01F13/08 , F27B3/02 , F27B3/04 , F27B3/10 , F27B3/19 , C21C7/00 , F27D3/14 , F27D11/06 , F27D3/00
CPC分类号： C21C5/5241 , B01F13/0809 , C21C5/5211 , C21C5/5247 , C21C5/527 , C21C7/00 , F27B3/02 , F27B3/045 , F27B3/10 , F27B3/19 , F27D3/14 , F27D11/06 , F27D27/00 , F27D2003/004
摘要： The apparatus includes a furnace having a furnace chamber (14), a port (16) in fluid communication with the furnace chamber having an inclined lower wall (18), and a bi-directional induction unit (24) mounted to the inclined lower wall for inducing flow in molten material in the port. A retractable channel plate assembly (26) is selectively positionable in the port to define an extraction flow channel (28) for the molten material between the channel plate assembly and the inclined lower wall. A drive arrangement (64) moves the channel plate assembly into and out of the port and the control of a control system (74) which includes a sensor system (78) for measuring the level of the molten material in the port and a feedback system for providing information regarding the position of the channel plate assembly. A method of operating the apparatus is also disclosed.
摘要翻译： 该装置包括具有炉室（14）的炉子，与炉室流体连通的具有倾斜下壁（18）的端口（16）和安装在倾斜下壁上的双向感应单元（24） 用于在端口中的熔融材料中引起流动。 可缩回通道板组件（26）可选择性地定位在端口中，以限定用于在通道板组件和倾斜下壁之间的熔融材料的提取流动通道（28）。 驱动装置（64）将通道板组件移入和移出端口以及控制系统（74）的控制，控制系统（74）包括用于测量端口中的熔融材料的水平的传感器系统（78）和反馈系统 用于提供关于通道板组件的位置的信息。 还公开了一种操作该装置的方法。
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公开(公告)号：US20150323255A1
公开(公告)日：2015-11-12
申请号：US14273717
申请日：2014-05-09
申请人： Altek L.L.C. , Altek Europe Ltd
发明人： Richard C. Chandler
CPC分类号： F27B3/19 , C22B7/003 , C22B9/16 , C22B21/0092 , F27B3/045 , F27B3/10 , F27B3/18 , F27D27/00 , Y02P10/218
摘要： An exemplary furnace system for melting stock metal includes a main hearth and a side well subsystem, which includes a melting well disposed downstream of the main hearth for receiving flow from the main hearth, an input flow inducer disposed upstream of the melting well and downstream of the main hearth, and an output flow inducer disposed downstream of the melting well and upstream of the main hearth. The input flow inducer drives molten metal into the melting well, thereby forming a differential metal head in the melting well. The output flow inducer evacuates molten metal from an output conduit, thereby reducing counter-pressure at an output port of the melting well communicating with the output conduit. This allows atmospheric pressure to add to the differential metal head in the melting well, resulting in an increase in productivity of the side well subsystem and of the furnace system as a whole.
摘要翻译： 用于熔化原料金属的示例性炉系统包括主炉和侧井子系统，其包括设置在主炉底部的熔融井，用于接收来自主炉的流动;输入流动诱导器，其设置在熔融井的上游， 主炉，以及设置在熔融井下游和主炉上游的输出流动诱导器。 输入流引导器将熔融金属驱入熔融井，从而在熔化井中形成差动金属头。 输出流动诱导器从输出导管排出熔融金属，从而减少与输出导管连通的熔化井的输出端口处的反压力。 这允许大气压力在熔融井中添加到差分金属头部，导致侧井子系统和整个炉系统的生产率提高。
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26.发明授权公开(公告)号：US08475707B2
公开(公告)日：2013-07-02
申请号：US12963865
申请日：2010-12-09
申请人： Jinlong Zhan
发明人： Jinlong Zhan
摘要： An apparatus and a method of manufacturing direct reduction iron and a reduction firing apparatus. The apparatus has a reduction furnace including a left chamber, a right chamber, a material containing device, a step mechanism, a slag distributing device, a charging device, heating burners, a fume extraction path, a charging device, a material receiving tank and a slag discharging path. The method includes the following steps: distributing and charging the slag in the material containing device; carrying and sending the material containing device through a preheating station, a heating station and a reduction station sequentially. Meanwhile, heating the material to be reduced by a combustion of fuel with the heating burners; discharging the reduced material into the material receiving tank; placing the material device from which the material is discharged into the feeding side of the other chamber, then a next work circulation begins.
摘要翻译： 一种制造直接还原铁的装置和方法以及还原烧制装置。 该装置具有还原炉，其包括左室，右室，含材料装置，台阶机构，炉渣分配装置，充气装置，加热燃烧器，烟气抽出路径，充电装置，材料容纳罐和 炉渣排放路径。 该方法包括以下步骤：在材料容纳装置中分配和充填炉渣; 通过预热站，加热站和还原站依次运送和发送材料容纳装置。 同时，用加热燃烧器加热燃料燃烧而减少的材料; 将还原材料排放到材料容纳罐中; 将材料从其排出的材料装置放入另一个室的进料侧，然后开始下一个工作循环。
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公开(公告)号：US20120146268A1
公开(公告)日：2012-06-14
申请号：US13405461
申请日：2012-02-27
CPC分类号： C22B15/0045 , C22B9/16 , C22B15/006 , F27B3/14 , F27B3/18 , F27D1/1858 , F27D3/04 , Y10S266/90
摘要： A stack of copper plates is placed in a melting chamber having a closed roof of refractory material. The stack is placed in a tilted orientation leaning against a side wall of the melting chamber, with lower edges of the copper plates resting on an inclined hearth surface. A door to the melting chamber is closed to block the infiltration of oxygen. A burner is fired into the melting chamber to heat the closed roof of refractory material, and the stack of copper plates is melted under the influence of combustion products from the burner and heat radiated from the closed roof. Molten copper is drained downward from the bottom edge of the inclined hearth surface to avoid immersing the copper plates in a molten bath.
摘要翻译： 将一叠铜板放置在具有封闭的耐火材料屋顶的熔化室中。 堆叠被放置成倾斜于熔化室的侧壁的倾斜方向，铜板的下边缘搁置在倾斜的炉床表面上。 关闭熔化室的门，以阻止氧的渗透。 燃烧器被烧入熔化室以加热耐火材料的封闭屋顶，并且在来自燃烧器的燃烧产物和从封闭屋顶辐射的热量的影响下，铜板堆叠熔化。 熔融铜从倾斜炉床表面的底部边缘向下排出，以避免将铜板浸入熔池中。
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公开(公告)号：US20120006156A1
公开(公告)日：2012-01-12
申请号：US13257411
申请日：2010-03-10
申请人： Rafic Boulos Daou
发明人： Rafic Boulos Daou
CPC分类号： F27D17/004 , C21C5/527 , C21C5/5294 , C21C2005/5282 , C21C2200/00 , F27B3/085 , F27B3/18 , F27B3/26 , Y02P10/216
摘要： A steel production facility and a method of uninterrupted, or at least cyclical, steelmaking in the facility. In the case of uninterrupted steelmaking at least the first three of the following steps and in case of cyclical steelmaking all five steps are performed: charge materials are molten uninterruptedly or cyclically in an electric arc furnace; the charge materials (e.g., shredded scrap-iron pieces shredded in a shredding-system for shredding discarded iron and/or steel junk), Direct Reduced Iron and/or Hot Briquette Iron are uninter ruptedly or continuously during a melting process cycle fed into the electric arc furnace; a part of liquid steel is uninterruptedly or cyclically discharged from the steel bath of the electric arc furnace; from the thermic energy included in the hot process-exhaust of the electric arc furnace, electric energy is, by means of power generation, generated uninterruptedly or at least during a melting process cycle; a shredding-system assigned to the electric arc furnace for shredding the scrap is powered by the electric energy generated from the process exhaust.
摘要翻译： 钢铁生产设施和在设施中不间断或至少循环炼钢的方法。 在不间断炼钢的情况下，至少要执行以下前三个步骤，并且在循环炼钢的情况下，执行所有五个步骤：充电材料在电弧炉中不间断地或周期性地熔融; 电荷材料（例如，切碎的废碎铁和/或钢垃圾粉碎系统中的碎屑铁屑），直接还原铁和/或热煤饼铁在熔化过程循环期间不间断地或连续地进入 电弧炉; 液态钢的一部分不间断地或循环地从电弧炉的钢浴排出; 根据电弧炉的热处理排气中包含的热能，电能通过发电不间断地或至少在熔化过程循环中产生; 分配给用于粉碎废料的电弧炉的粉碎系统由从工艺废气产生的电能驱动。
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公开(公告)号：US06049560A
公开(公告)日：2000-04-11
申请号：US205146
申请日：1998-12-03
申请人： Charles John Freeman
发明人： Charles John Freeman
CPC分类号： F27D3/14 , B22D41/60 , F27B3/19 , F27D1/0006 , F27D2009/0013 , F27D2099/0015 , Y02P10/253
摘要： An inductively heated drain tube fashioned of high temperature, electrically conducting materials is disclosed. An inductor surrounds the drain tube. The inductor and drain tube are cast within a refractory material. The drain tube is then placed in communication with the side of a bath of molten materials. When power is supplied to the inductor, the inductor couples with the drain tube, heating the drain tube and allowing it to act as a drain for high temperature molten materials. When power is removed from the inductor, a flow of cooling liquid through the inductor cools the drain tube, solidifying the molten materials and stopping their flow through the drain tube. The refractory material encases the inductor, acting as a thermal barrier and preventing damage from molten materials.
摘要翻译： 公开了一种由高温导电材料制成的感应加热排水管。 电感器围绕排水管。 电感和排水管浇注在耐火材料中。 然后将排水管放置成与熔融材料浴的一侧连通。 当向电感器供电时，电感器与排水管耦合，加热排水管并使其作为高温熔融材料的排水口。 当从电感器去除电力时，通过电感器的冷却液体流冷却排水管，固化熔融材料并阻止它们流过排水管。 耐火材料包住电感器，充当热障，并防止熔融材料损坏。
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公开(公告)号：US4981285A
公开(公告)日：1991-01-01
申请号：US416925
申请日：1989-10-04
CPC分类号： C21C5/562 , F27B3/19 , Y02P10/143 , Y02P10/216 , Y10S266/90 , Y10S266/901
摘要： Process and apparatus for the rapid efficient melting of solid ferrous metal scrap without direct exposure to water vapor, carbon dioxide, oxygen or oxygen-containing gases, using natural gas and/or other caloric gaseous fuels. The apparatus includes a furnace having a refractory base, means for introducing ferrous metal such as solid steel scrap to the wall area, means for providing a slag layer over the solid steel scrap, and gas burner means for emitting one or more forced gas flames for superheating the slag layer to a liquid which covers the scrap and for agitating and circulating the molten slag to form a highly-efficient heat-transfer medium for melting and refining the steel scrap while it is insulated against contact with gases, particularly water vapor, carbon dioxide, oxygen or oxygen-containing gases. The process may operate continuously and can recover heat for scrap preheating, turbine power and other efficient uses.
摘要翻译： 使用天然气和/或其他热量气体燃料，无需直接暴露于水蒸汽，二氧化碳，氧气或含氧气体的实体黑色金属废料的快速有效熔融的方法和设备。 该装置包括具有耐火基座的炉子，用于将诸如实心废钢的黑色金属引入壁区的装置，用于在固体废钢上提供炉渣层的装置，以及用于排放一个或多个强制气体火焰的气体燃烧器装置 将渣层过热到覆盖废料的液体，并搅拌和循环熔渣以形成用于熔融和精炼废钢的高效传热介质，同时与废气接触，特别是水蒸汽，碳 二氧化碳，氧气或含氧气体。 该过程可以连续运行，并可以回收热量用于废料预热，涡轮功率和其他有效用途。
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