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公开(公告)号：US06327296B1
公开(公告)日：2001-12-04
申请号：US09601574
申请日：2000-09-08
IPC分类号： F27D102
CPC分类号： F27D1/1816 , F27D17/003
摘要： A cooled roof for electric arc furnaces (20) or ladle furnaces (29). The roof being used as a covering element and including a cooling system comprising tubes fed with cooling fluid. The roof including at least a central aperture (25) for the positioning and movement of the electrodes (30) and at least a peripheral aperture (14) for the aspiration and discharge of fumes. The aperture (14) being connected to intake systems. The roof including two single-block cooling structures, inner (1) and outer (12), consisting of respective bent tubes (15, 16) developing according to adjacent and superimposed rings or spirals. The inner (11) and outer (12) cooling structures being associated with one another at least in correspondence with the respective bases facing towards the inside of the furnace (20, 29). Between the inner cooling structure (11) and the outer cooling structure (12) there being defined an annular interspace (13) in which the fumes circulate in an annular direction and slow down. The annular interspace (13) communicating with the peripheral aperture. The inner cooling structure (11) including fume-transit interstices connecting the inside of the furnace (20, 29) with the annular interspace (13).
摘要翻译： 电弧炉（20）或钢包炉（29）的冷却屋顶。 屋顶被用作覆盖元件并且包括包括供给冷却流体的管的冷却系统。 该屋顶至少包括用于电极（30）的定位和移动的中心孔（25）和用于抽吸和排放烟雾的至少一个周边孔（14）。 孔（14）连接到进气系统。 屋顶包括两个单块冷却结构，内部（1）和外部（12），由相应的弯曲管（15,16）组成，根据相邻和叠加的环或螺旋形成。 内部（11）和外部（12）冷却结构至少与朝向炉子（20,29）的内部的相应基座相对应。 在内部冷却结构（11）和外部冷却结构（12）之间，限定了环形间隙（13），其中烟雾在环形方向上循环并且减慢。 环形间隙（13）与外围孔连通。 内部冷却结构（11）包括将炉子（20,29）的内部与环形间隙（13）连接的通风间隙。
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2.发明授权
公开(公告)号：US5762127A
公开(公告)日：1998-06-09
申请号：US470453
申请日：1995-06-06
IPC分类号： B22D11/055 , B22D11/22 , B22D11/04
CPC分类号： B22D11/055 , B22D11/22
摘要： Crystalliser and method to control the deformations of the sidewalls of a crystalliser (11) for the continuous casting of billets/blooms/slabs (24), which is associated with a mould (10) and cooperates externally with a box-shaped structure (13) creating a cooling chamber (14), in which a cooling fluid circulates, and cooperates internally with the skin of the billets/blooms/slabs (24) being formed, the cooling chamber (14) containing an intermediate wall (20) creating a circulation channel (21) in cooperation with the outer surface of the sidewall (12) of the crystalliser (11), at least one upper zone (37) being included in cooperation at least with the vicinity of the meniscus and with the portion below the meniscus (27) of liquid metal, a lower zone (38) being also included and beginning in the vicinity of the zone of separation of the forming skin from the inner surface of the sidewall (12) of the crystalliser (11) and extending towards the outlet of the crystalliser (11), the pressure of the cooling fluid in the lower zone (38) of the crystalliser (11) being a function of the desired value (g1) of an air interspace (36) between the sidewall (12) of the crystalliser (11) and the skin of the forming billet/bloom/slab (24), this desired value of air interspace (36) tending towards a zero value.
摘要翻译： 结晶器和控制结晶器（11）的侧壁的变形的方法，用于连续铸造与模具（10）相连的坯料/坯料（24），并且与外壳与箱形结构（13）配合 （14），其中冷却流体循环并与所形成的坯料/坯料/板坯（24）的表皮内部配合，所述冷却室包含中间壁（20），所述中间壁（20）形成 循环通道（21）与结晶器（11）的侧壁（12）的外表面协作，至少一个上部区域（37）至少与弯月面附近配合并且与下部的部分 液体金属的弯月面（27），还包括下部区域（38），并且从成形皮肤与分离器（11）的侧壁（12）的内表面分开的区域附近开始并向着 结晶器（11）的出口， 确定结晶器（11）的下部区域（38）中的冷却流体是结晶器（11）的侧壁（12）和皮肤（11）之间的空气间隙（36）的期望值（g1）的函数 形成坯料/坯料/板坯（24）时，空气间隙（36）的期望值倾向于零值。
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3.发明授权Continuous-casting crystalliser with increased heat exchange and method to increase the heat exchange in a continuous-casting crystalliser 失效具有增加的热交换的连续铸造结晶器和用于增加连续铸造结晶器中的热交换的方法
公开(公告)号：US5611390A
公开(公告)日：1997-03-18
申请号：US470454
申请日：1995-06-06
IPC分类号： B22D11/055 , B22D11/22 , B22D11/04
CPC分类号： B22D11/22 , B22D11/055
摘要： The crystalliser (11) cooperates externally with a box-shaped structure (13) creating cooling chambers (14), in which a cooling fluid circulates, and cooperates internally with the skin of the billets, blooms or slabs (24) being formed. The cooling chambers (14) containing intermediate walls (20) create circulation channels (21) in cooperation with the outer surfaces (12) of the sidewalls of the crystalliser (11), at least one upper zone (34) being included in cooperation at least with the vicinity of the meniscus and with the portion below the meniscus (33) of liquid metal, a lower zone (26) being also included and beginning in the vicinity of the zone of separation of the forming skin from the inner surfaces (12) of the crystalliser (11) and extending towards the outlet of the crystalliser (11). By acting on the cross-section and/or conformation of at least one longitudinal portion of at least one side of the cross-section of the circulation channels (21), e.g., by providing elements to disturb the flow of cooling fluid in the circulation channels (21), and by acting on the different pressures of the cooling fluid present between the inlet and outlet of that longitudinal portion of the circulation channels (21) a desired turbulence of the cooling fluid is created which is such as to increase the coefficient of heat exchange to a value greater than 40,000 W/m.sup.2 K. The side walls of the crystallizer preferably have a thickness between 4 and 15 mm.
摘要翻译： 结晶器（11）在外部与一个形成冷却室（14）的箱形结构（13）配合，其中冷却流体循环，并与内部形成的坯料，花纹或板坯（24）的内部配合。 包含中间壁（20）的冷却室（14）与结晶器（11）的侧壁的外表面（12）配合产生循环通道（21），至少一个上部区域（34）在 至少与弯月面附近并且与液态金属的弯液面（33）下方的部分一起，还包括下部区域（26），并且从成形皮肤与内表面（12）的分离区域附近开始 ）和结晶器（11）的出口延伸。 通过作用于循环通道（21）的横截面的至少一侧的至少一个纵向部分的横截面和/或构造，例如通过提供元件来扰乱循环中的冷却流体的流动 通道（21），并且通过作用于存在于循环通道（21）的该纵向部分的入口和出口之间的冷却流体的不同压力，产生了所需的冷却流体的湍流，这样使得系数 的热交换值大于40,000 W / m2K。 结晶器的侧壁优选地具有4至15mm的厚度。
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公开(公告)号：US6163561A
公开(公告)日：2000-12-19
申请号：US381914
申请日：1999-09-27
申请人： Giampietro Benedetti , Milorad Pavlicevic , Alfredo Poloni , Gianni Gensini , Angelico Della Negra
发明人： Giampietro Benedetti , Milorad Pavlicevic , Alfredo Poloni , Gianni Gensini , Angelico Della Negra
CPC分类号： F27D1/12 , C21C5/527 , F27D3/0027 , F27D13/002 , Y02P10/216
摘要： Basket to manipulate scrap in cooperation with an arc furnace (11) and with means to pre-heat the scrap by means of the fumes from the fourth hole (14), the basket being able to be associated with a movable covering system (16) and including a containing body, a bottom equipped with toothed lower closing means which may be momentarily opened, and lateral extensions for moving and positioning the basket, the containing body comprising a first upper part (10a) which acts as a buffer store to temporally increase the capacity of the basket (10) and a second lower part (10b) to contain the scrap, with a capacity substantially mating with the volume of the load of the melting furnace (110) which it has to feed, wherein the second lower part (10b) is associated with cooling means.
摘要翻译： PCT No.PCT / IB98 / 00427 Sec。 371 1999年9月27日第 102（e）1999年9月27日PCT PCT 1998年3月23日PCT公布。 公开号WO98 / 42880 日期1998年10月1日用于与电弧炉（11）配合操作废料的垫片，并且借助于来自第四孔（14）的烟雾来预热废料的装置，该篮子能够与可移动的 覆盖系统（16）并且包括容纳体，底部配备有可以短暂打开的齿形下闭合装置和用于移动和定位篮子的侧向延伸部分，所述容纳体包括第一上部部分（10a） 缓冲存储器，以暂时地增加篮子（10）的容量和第二下部（10b）以容纳废料，其容量基本上与其必须进给的熔炉（110）的负载体积相配合， 其中所述第二下部（10b）与冷却装置相关联。
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5.发明授权Melting method for an electric ARC furnace with alternative sources of energy and relative electric ARC furnace with special burner positioning 失效具有替代能源的电ARC炉的熔化方法和具有特殊燃烧器定位的相对电弧炉
公开(公告)号：US5802097A
公开(公告)日：1998-09-01
申请号：US583727
申请日：1996-01-17
CPC分类号： F27B3/225 , C21C5/5217 , F27B3/205 , Y02P10/216
摘要： Melting method for an electric arc furnace with alternative sources of energy for the melting of iron-based alloys, the electric furnace (10) including tuyeres (13) positioned on the bottom to deliver oxygen, at least one tuyere (15) to deliver coal dust which works in the area of contact between the bath of molten metal (16) and the layer of slag (22), at least one supersonic lance (12) cooperating with a lance (29) to deliver coal dust, these lances (12, 29) having a working position (12c, 29c) in which the supersonic lance (12) is positioned in close proximity to the surface of the molten metal (16) and the lance (29) to deliver coal dust is positioned in the vicinity of the surface of the layer of slag (22), and a plurality of burners (28) positioned on the cooled sidewalls (31) of the furnace (10) and delivering oxygen-based gases and combustible substances, whereby at least two first burners (28) work with the action of one burner supporting the action of the next one, the furnace (10) being charged with one or more charges which provide for a first step of start-up of the melting and a second step of melting, a refining step and a tapping step being included, in which method in the first step of start-up of the melting at least one second burner (28e) collaborates in freeing quickly the path of introduction of the supersonic lance (12) and of the lance (29) to deliver coal dust.
摘要翻译： 一种具有用于铁基合金熔化的替代能源的电弧炉的熔化方法，所述电炉（10）包括位于底部以输送氧的风口（13），至少一个风口（15）以输送煤 在熔融金属（16）的熔池与炉渣（22）之间的接触区域中工作的灰尘，至少一个与喷枪（29）配合以输送煤尘的超音速喷枪（12），这些喷枪 ，29），其中超音速喷枪（12）位于靠近熔融金属（16）表面的工作位置（12c，29c）上，并且用于输送煤尘的喷枪（29）位于附近 （22）的表面的多个燃烧器（28）和位于炉（10）的冷却的侧壁（31）上的多个燃烧器（28），并且输送氧气和可燃物质，由此至少两个第一燃烧器 （28）在一个燃烧器的作用下工作，支持下一个燃烧器的动作 e（10）被带有一个或多个电荷，其提供熔化启动的第一步骤和熔化的第二步骤，包括精炼步骤和攻丝步骤，其中在第一步骤中开始的方法 熔化的至少一个第二燃烧器（28e）的协同作用可以快速释放超声波喷枪（12）和喷枪（29）的引入路径，以输送煤尘。
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公开(公告)号：US5772430A
公开(公告)日：1998-06-30
申请号：US798728
申请日：1997-02-13
CPC分类号： F27D9/00 , F27B3/24 , F27D1/12 , F27D2009/0016 , F27D2009/0032
摘要： Cooling device with panels for arc electric furnaces, which is used in an electric melting furnace in cooperation with the vertical sidewall placed above the lower shell (11) of the furnace, the furnace comprising in its lower part one lower shell (11) to contain a bath (12) of melting metal and an upper shell defined by a plurality of panels (16) comprising a plurality of cooling tubes (17), the lower shell (11) including at its outer part a metallic containing element (15), the inner refractory having an upper edge (19) located substantially at the level of the upper edge of the layer of slag (14) contained above the bath (12) of melting metal, each panel (16) including an outer layer (116) and at least an inner layer (22) of cooling tubes (17), the layers (116, 22) developing vertically along the vertical side wall of the furnace above the refractory edge of the lower shell (11) and being separated by an interspace (23).
摘要翻译： 用于电弧电炉的冷却装置，其与放置在炉的下壳体（11）上方的垂直侧壁协作用于电熔炉中，该炉在其下部包括一个下壳体（11）以容纳 熔化金属的熔池（12）和由包括多个冷却管（17）的多个板（16）限定的上壳体，所述下壳体（11）在其外部包括金属容纳元件（15）， 内部耐火材料具有上边缘（19），其基本上位于熔融金属浴（12）上方的炉渣层（14）的上边缘的高度处，每个板（16）包括外层（116） 和至少一个冷却管（17）的内层（22），所述层（116,22）沿着炉子的垂直侧壁垂直地展开，位于下壳体（11）的耐火边缘上方并且被间隙分开 （23）。
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7.发明授权Method for the continuous casting of long products and relative continuous casting line 失效连续铸造长产品和相对连续铸造线的方法
公开(公告)号：US5771560A
公开(公告)日：1998-06-30
申请号：US693796
申请日：1996-07-31
CPC分类号： B22D11/1206 , B21B1/46 , Y10S29/005 , Y10T29/49991 , Y10T29/5184 , Y10T29/5198
摘要： Method and continuous casting line for the continuous casting advantageously, but not only, of long products such as billets or blooms, whereby the solidification of the cast product (16) is completed at a position downstream of the outlet of the mould (13) and whereby the cast product (16) leaving a continuous casting machine (11) curving at a speed of at least 4 mts/min. is transferred into the horizontal segment with at least 12% of the section constituted by the liquid core without being sheared to size, the liquid core being solidified just before the cast product (16) is fed to a temperature-maintaining and pre-heating system and is then fed to a temperature-equalisation and fast-heating system and is fed lastly to a rolling train without any discontinuity and/or interruptions of the process, the preset casting speed bring at least higher than the critical speed of the rollers of the rolling train (18), and there being at least a stage, between the temperature-equalisation and fast heating system, where the core of the cast product (16) is tempered by the propagation of the surface heat, the temperature of the core and the surface of the cast product (16) being made uniform and homogeneous.
摘要翻译： 用于连续铸造的方法和连续铸造线有利地但不仅仅是诸如坯料或花纹的长产品，由此铸造产品（16）的凝固在模具（13）的出口下游的位置处完成，并且 由此铸造产品（16）离开连续铸造机（11）以至少4mts / min的速度弯曲。 被转移到水平段中，其中至少12％的部分由液芯构成，而不被剪切至尺寸，液体芯刚好在铸造产品（16）被供给到温度保持和预热系统之前被固化 然后被送入温度均衡和快速加热系统，并且最后被馈送到轧制系统而没有任何不连续和/或中断过程，预设的铸造速度至少高于辊子的临界速度 轧制系（18），并且在温度均衡和快速加热系统之间存在至少一个阶段，其中铸造产品（16）的芯通过表面热的传播，芯的温度和 铸造产品（16）的表面被制成均匀且均匀。
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公开(公告)号：US5743729A
公开(公告)日：1998-04-28
申请号：US798729
申请日：1997-02-13
CPC分类号： F27D9/00 , F27B3/24 , F27D1/12 , F27D2009/0016 , F27D2009/0032
摘要： Cooling device with panels for arc electric furnaces, which is used in an electric melting furnace in cooperation with the vertical sidewall placed above the lower shell (11) of the furnace, the furnace comprising in its lower part one lower shell (11) to contain a bath (12) of melting metal and an upper shell defined by a plurality of panels (16) comprising a plurality of cooling tubes (17), the lower shell (11) including at its outer part a metallic containing element (15), the inner refractory having an upper edge (19) located substantially at the level of the upper edge of the layer of slag (14) contained above the bath (12) of melting metal, at least part of the outer panel (16) consisting of a horizontal row (18) of cooling tubes (17) arranged slightly above a substantial part of the upper refractory edge (19) of the lower shell (11).
摘要翻译： 用于电弧电炉的冷却装置，其与放置在炉的下壳体（11）上方的垂直侧壁协作用于电熔炉中，该炉在其下部包括一个下壳体（11）以容纳 熔化金属的熔池（12）和由包括多个冷却管（17）的多个板（16）限定的上壳体，所述下壳体（11）在其外部包括金属容纳元件（15）， 所述内部耐火材料具有上边缘（19），所述上边缘（19）基本上位于熔融金属浴槽（12）上方的所述熔渣（14）上方的所述炉渣层（14）的上边缘的高度处，所述外板（16）的至少一部分由 布置在下壳体（11）的上耐火材料边缘（19）的大部分上方的冷却管（17）的水平排（18）。
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9.发明授权
公开(公告)号：US5543602A
公开(公告)日：1996-08-06
申请号：US238497
申请日：1994-05-05
申请人： Gianni Gensini , Giovanni Coassin
发明人： Gianni Gensini , Giovanni Coassin
CPC分类号： H02J3/28 , Y10T307/527 , Y10T307/587
摘要： Method for the storage and controlled supply of electric energy for discontinuous loads in steelworks and in particular for metal melting systems and rolling mills, the method comprising at least one main supply line (18) connected to a main supply source (11) of electric energy and a plurality of loads (12-13-14-114-20), whereby the level of maximum active power supplied by that main supply source (11) to the steelworks is limited by a sub-station (27) to a level "P.sub.0 " lower than the peaks of maximum absorption by those loads (12-13-14-114-20), the method comprising at least one accumulation line (16) connected in parallel to the main supply line (18) and supplying at least one storage assembly (17), which is connected to the loads (12-13-14-114-20) through a secondary supply line (19).
摘要翻译： 用于存储和控制供应钢铁不连续负载的电能的方法，特别是用于金属熔化系统和轧机的方法，该方法包括至少一个连接到主电源（11）的主电源线（18） 和多个负载（12-13-14-114-20），由此由该主供应源（11）提供给钢厂的最大有功功率的水平由分站（27）限制到“ P0“低于这些负载（12-13-14-114-20）的最大吸收峰值，该方法包括至少一个与主供应管线（18）并联连接的累积管线（16），并至少提供 一个存储组件（17），其通过二次供应管线（19）连接到负载（12-13-14-114-20）。
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10.发明授权Method and device to control the force applied to the electrode-bearing arms of an electric arc furnace 失效控制施加到电弧炉的电极轴承臂的力的方法和装置
公开(公告)号：US5274664A
公开(公告)日：1993-12-28
申请号：US734785
申请日：1991-07-23
申请人： Giovanni Nigris , Gianni Gensini
发明人： Giovanni Nigris , Gianni Gensini
CPC分类号： H05B7/156 , Y02P10/256 , Y02P10/259
摘要： Method and device to control the force applied to the electrode-bearing arms of an electric arc furnace, the vertical regulation of the electrodes being achieved with an electrohydraulic or electropneumatic system consisting of an operational cylinder actuated by a fluid under pressure so as to raise and lower the electrodes, the control means of the system being adjustable by means of an electrical device, whereby the working pressure of the operational cylinder is measured by a pressure transducer (15) and is processed by a processor system (16) so as to obtain the weight of the electrodes and the condition of static pressure, the processor system (16) governing a quick-response servovalve (18) and being governed by an interface (19) of the system that adjusts the electrical current fed to the electrodes (11).
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