-
1.发明授权
公开(公告)号：US5444733A
公开(公告)日：1995-08-22
申请号：US238060
申请日：1994-05-04
CPC分类号： F27B3/205 , C21C5/5217 , F27B3/085 , F27B3/225 , F27D2099/0048 , Y02P10/143 , Y02P10/216
摘要： Electric arc furnace with alternative sources of energy, which functions with direct current or alternating current and comprises at least one lance (12) to inject pure or combined oxygen above the bath (16) and a plurality of tuyeres (13) positioned in the hearth of the furnace (10) to inject oxygen below the bath, the tuyeres (13) being cooled by a peripheral movement of a cooling mixture consisting of at least one gas having a high cooling power (methane, butane, inert gases, etc.) and of at least one diluting gas (nitrogen, carbon dioxide), pipes (15) being included to introduce additives and powdered coal, post-combustion burners (28) possibly being comprised, the tuyeres (13) including an oxygen delivery pipe (18) having a diameter greater than 8 mm., the oxygen pressure being capable of being modulated according to the working steps, there being a constant minimum pressure of delivery. Melting operating method associated with such an electric furnace, wherein the charging operation with each single charge (skip) is divided into defined periods, with which are associated a pressure of delivery of oxygen through the tuyeres (13) and a percentage of gas having a high cooling power and proportioned to the rate of flow of the oxygen, there being a minimum pressure of delivery of oxygen in each moment of the working of the furnace (10).
摘要翻译： 具有替代能量源的电弧炉，其具有直流或交流电的功能，并且包括至少一个喷枪（12）以在浴（16）上方注入纯净或组合的氧气，以及多个位于炉膛中的风口（13） 的炉子（10）中以将氧气注入到熔池下方，风嘴（13）由冷却混合物的周边运动冷却，冷却混合物由至少一种具有高冷却能力的气体（甲烷，丁烷，惰性气体等）组成， 以及至少一个稀释气体（氮气，二氧化碳），包括引入添加剂和粉煤的管道（15），可能包括的燃烧后燃烧器（28），所述风口（13）包括氧气输送管道（18） ），氧气压力能够根据工作步骤进行调节，存在恒定的最小输送压力。 与这种电炉相关联的熔化操作方法，其中每个单次充电（跳过）的充电操作被划分为限定的时间段，通过风口（13）与氧的输送压力相关联，并且具有 高的冷却功率并且与氧气的流量成比例，在炉子（10）的每个工作时刻都有最小的氧气输送压力。
-
2.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）。
-
3.发明授权Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current 失效具有控制电流的直接电弧炉和控制电流的直接电弧炉的方法
公开(公告)号：US5239554A
公开(公告)日：1993-08-24
申请号：US612981
申请日：1990-11-15
CPC分类号： H05B7/156 , Y02P10/256 , Y02P10/259
摘要： Method to feed a three-phase direct-arc electric furnace with controlled current and also a three-phase electric furnace thus fed for the smelting of metals, e.g. iron-based alloys, the furnace comprising means (GI) for regulation of the length of the arc by means of action on the height of the electrodes, the mains supply of the furnace including at least one medium voltage line and a transformer to serve the arc furnace, an element to regulate the arc current being comprised in each phase in the segment connecting the medium voltage line and the transformer and consisting of at least one inductor (L1), a thyristor-controlled valve (T) or alternatively a regulation element consisting of a saturable reactor being included in parallel with at least part of the inductor, one or the other of these regulation elements cooperating with a device (s1) to measure the intensity of the arc current and with an assembly (GC) that controls the arc current of the furnace by means of action on the overall value of the equivalent series reactance. The method includes feeding current to the furnace through the mains supply and varying the value of a series reactance of the segment connecting the medium voltage line and the transformer.
-
公开(公告)号：US5542165A
公开(公告)日：1996-08-06
申请号：US238057
申请日：1994-05-04
IPC分类号： B21B1/26 , B21B1/34 , B21B1/46 , B21B15/00 , B21B45/00 , B21B45/08 , C21D1/42 , C21D9/00 , B21B13/22
CPC分类号： C21D9/0081 , B21B1/466 , B21B1/26 , B21B1/34 , B21B2015/0014 , B21B45/00 , B21B45/004 , B21B45/08 , C21D1/42 , Y02P10/253 , Y10T29/49991 , Y10T29/5184
摘要： Line to produce strip and/or sheet or a combined line for strip/sheet, starting from at least one plant for the continuous casting of thin or medium slabs, the continuous casting plant comprising in sequence a continuous casting machine (12), at least one assembly (13) for shearing to size, a temperature restoration system, a rolling train (17-117) and a possible assembly (19) for the cooling of strip/sheet. A device to accelerate the speed of feed of the slabs is included downstream of the assembly (13) for shearing to size. The temperature-restoration system includes an induction furnace (14) with at least one working frequency to heat the surface and edges of the slabs, the induction furnace (14) being followed by a low-speed descaler (115) and by a tunnel furnace (16). An emergency shears (24) and high-speed descaler (15) is included between the tunnel furnace (16) and the rolling train (17-117).
摘要翻译： 用于生产条带和/或片材的线或用于条/片的组合线，从至少一个用于连续铸造薄板或中板的工厂开始，连续铸造设备至少包括连续铸造机器（12） 用于剪切尺寸的一个组件（13），温度恢复系统，滚动列车（17-117）和用于冷却带材/片材的可能的组件（19）。 用于加速板坯进给速度的装置包括用于剪切尺寸的组件（13）的下游。 温度恢复系统包括感应炉（14），其具有至少一个工作频率以加热板的表面和边缘，感应炉（14）之后是低速除垢器（115）和隧道炉 （16）。 在隧道炉（16）和轧制列车（17-117）之间包括一个应急剪切机（24）和高速除垢机（15）。
-
5.发明授权
公开(公告)号：US5383218A
公开(公告)日：1995-01-17
申请号：US094338
申请日：1993-07-20
CPC分类号： H05B7/144 , F27B3/085 , H05B7/11 , Y02P10/256 , Y02P10/259
摘要： Direct-current smelting furnace with control of deflection of the electric arc, which comprises an upper electrode (13) with relative return-flow lines and a plurality of bottom electrodes (11) positioned on the hearth of the furnace (12) and arranged in two or more assemblies, each assembly having its own controlled supply line connected to its own transformer (16), there being included downstream of each transformer (16) its own thyristor rectifier assembly (17) associated with its own means to control voltage (26), current (24) and firing angle (23), at least the lines supplying the bottom conductors (32) being at least partly screened in the vicinity of the melting furnace (12)
摘要翻译： 具有控制电弧偏转的直流熔炼炉，其包括具有相对回流管线的上电极（13）和位于炉（12）的炉床上的多个底电极（11），并布置在 两个或更多个组件，每个组件具有连接到其自己的变压器（16）的其自己的受控供电线，每个变压器（16）的下游包括其自身的可控硅整流器组件（17），其与其自身的装置相关联，以控制电压（26 ），电流（24）和触发角（23），至少提供底部导体（32）的线在熔炉（12）附近至少部分地被筛选，
-
6.发明授权
公开(公告)号：US5941299A
公开(公告)日：1999-08-24
申请号：US756552
申请日：1996-11-26
CPC分类号： B22D11/1206 , B21B1/463
摘要： The controlled pre-rolling of a slab, leaving a continuous casting plant is carried out with pairs of pre-rolling elements (14, 114, 16) assembled in at least one pre-rolling assembly (10), the first of these pre-rolling assemblies (10) being positioned immediately downstream of the foot rolls (12) of a crystalliser (11). At least one data processing and controlling unit (21) governs the positioning and the adjustment of the pre-rolling elements (14, 114, 16), the final pre-rolling zone being pre-defined by a specific pair (No. X) of pre-rolling elements positioned along the path of extraction of the slab (20), the data processing and controlling unit (21) having access to an inner memorised archive where there is a plurality of pre-defined tables or technological cards (27) containing the map of the desired values of reduction in thickness in the pre-rolling step as a function of the working parameters pre-set and/or monitored and/or detected continuously, each significant variation of at least two of these parameters causing a new table or technological card (27) to be selected with a resulting re-definition of the position and/or action of the pre-rolling elements (14, 114, 16).
摘要翻译： 离开连续铸造设备的板坯的受控预轧通过组装在至少一个预轧组件（10）中的成对预轧元件（14,114,16）进行， 滚动组件（10）位于结晶器（11）的脚卷（12）的紧挨着的下方。 至少一个数据处理和控制单元（21）控制预滚动元件（14,114,16）的定位和调整，最终预滚动区域由特定对（No.X）预定义， 沿着板坯（20）的提取路径定位的预滚动元件，数据处理和控制单元（21）具有访问内部存储的存档，其中存在多个预定义的表或技术卡（27） 包含在预轧步骤中作为预设和/或连续监测和/或检测的工作参数的函数的预轧步骤中期望的厚度减小值的图，每个这些参数中的至少两个的显着变化导致新的 表格或技术卡（27）被选择，从而重新定义预滚动元件（14,114,16）的位置和/或动作。
-
公开(公告)号：US5673857A
公开(公告)日：1997-10-07
申请号：US453814
申请日：1995-05-30
CPC分类号： B22D41/50
摘要： Discharge nozzle (10) for continuous casting of slabs having narrow sides between about 30 and about 300 mm. wide, which is employed to distribute liquid metal in a continuous casting mould and is of a type comprising a substantially vertical discharge pipe (11), which is closed at its lower end and includes lateral terminal discharge holes (14) facing towards the narrow sides of the mould and cooperating with means (13) that distribute and deflect the flow of liquid metal, the discharge pipe (11) comprising a first segment (11a) having a downwardly converging circular cross-section and a second downwardly diverging segment (11b) with a cross-section which can be varied progressively from circular to substantially rectangular at least with rounded short sides, the distribution and deflection means (13) consisting of two distribution chambers (15), one per each lateral discharge hole (14), the chambers (15) being open at their upper (16a) and lower (16b) portions and being defined by a sidewall (17) which, at the opposite side of the lateral discharge hole (14), is conformed as a downwardly diverging deflector (18) forming an angle ".alpha." with the vertical between 10.degree. and 35.degree., the lateral discharge holes (14) being adjacent to a bottom end wall (12) and having an overall section about equal to the section of the outlet of the second segment (11b) of the discharge pipe (11), each distribution chamber (15) defining an upper discharge outlet (16a) and a lower discharge outlet (16b).
摘要翻译： 用于连续铸造具有约30和约300mm之间的窄边的板坯的排放喷嘴（10）。 用于在连续铸造模具中分配液态金属，并且是一种类型，其包括基本上垂直的排放管（11），其在其下端封闭，并且包括面向窄边的侧向端子排出孔（14） 与所述液体金属流的分配和偏转的装置（13）配合，所述排放管（11）包括具有向下会聚的圆形横截面的第一段（11a）和第二向下分叉段（11b） 至少具有圆形短边的横截面可以从圆形到大致矩形逐渐变化，由两个分配室（15）组成的分配和偏转装置（13），每个横向排出孔（14）中的一个， 室（15）在其上部（16a）和下部（16b）部分处敞开，并且由侧壁（17）限定，侧壁（17）在侧向排放孔（14）的相对侧被配置为向下 横向偏转器（18）与垂直于10°和35°之间形成角度“α”，横向排出孔（14）与底端壁（12）相邻，并且具有大约等于 排出管（11）的第二段（11b）的出口，每个分配室（15）限定上排出口（16a）和下排出口（16b）。
-
8.发明授权
公开(公告)号：US5601138A
公开(公告)日：1997-02-11
申请号：US553015
申请日：1995-11-03
申请人： Bruno Di Giusto , Fulvio Fasano , Wogler Ruzza , Mirco Striuli , Alfredo Lavazza , Andrea Carboni , Giovanni Coassin
发明人： Bruno Di Giusto , Fulvio Fasano , Wogler Ruzza , Mirco Striuli , Alfredo Lavazza , Andrea Carboni , Giovanni Coassin
CPC分类号： B22D11/0602 , B21B1/463 , B21B37/62 , B22D11/0622 , B22D11/1206 , B22D11/16 , B21B2201/14
摘要： Method for the controlled pre-rolling of thin slabs (20) leaving a continuous casting plant, whereby the pre-rolling is carried out with a plurality of pairs of rolls (14-16), a first pre-rolling assembly (10) being positioned immediately downstream of foot rolls (12) of a mold (11), at least one displaceable roll (16) being included in the pairs of rolls (14-16), the pairs of rolls (14-16) being associated with pressure transducer (18) and hydraulic capsule (17), position transducer (24) being included. The pressure transducer (18) and position transducer (24) can be associated with a data processing unit (21), at least the first of the pairs of rolls (14-16) processing a slab (20) which has just emerged from the mold (11) with a thin solidified skin. The method achieves a pre-rolling with a reduction of the thickness of the slab (20) leaving the last pair of pre-rolling rolls (14-16) by at least 10% so as to eliminate the liquid core and to bring into contact the zones in a two-phase condition in order that the central solidification structure be refined and the central separation be minimized. Device suitable to carry out the controlled pre-rolling of thin slabs according to the above method, which comprises an element (25a) to monitor the temperature of the liquid bath in a tundish, an element (25b) to monitor the temperature of a slab (20), an element (26) to monitor the speed of the slab (20) and an element (28) to monitor the inclusion of a liquid cone.
摘要翻译： 用于允许离开连续铸造设备的薄板坯（20）的受控预轧的方法，由此通过多对轧辊（14-16）进行预轧，第一预轧组件（10） 定位在模具（11）的脚卷（12）的紧挨下游的位置，至少一个位移辊（16）包括在成对辊（14-16）中，成对的辊（14-16）与压力 传感器（18）和液压胶囊（17），位置传感器（24）。 压力传感器（18）和位置传感器（24）可以与数据处理单元（21）相关联，至少第一对辊（14-16）处理刚刚从 模具（11）具有薄的固化皮肤。 该方法通过将最后一对预轧辊（14-16）的板坯（20）的厚度减小至少10％来实现预轧，从而消除液芯并使其接触 这两个区域处于两相状态，以便中心凝固结构被精炼并使中心分离最小化。 适用于根据上述方法进行薄板受控预轧的装置，其包括用于监测中间包中的液槽的温度的元件（25a），用于监测板坯温度的元件（25b） （20），用于监测板坯（20）的速度的元件（26）和用于监视液体锥体的包含的元件（28）。
-
公开(公告)号：US06199620B1
公开(公告)日：2001-03-13
申请号：US09088879
申请日：1998-06-02
IPC分类号： B22D1112
CPC分类号： B21B1/466
摘要： Method to transform a rolling mill in order to revamp an old-type rolling line (10) fed by slabs with a thickness greater than 160 mm and arriving from an accumulation store (12) and to insert a segment of new line comprising at least a continuous casting machine (19) to produce thin and medium slabs, with attached relative operating assemblies such as extraction, straightening, shearing devices etc., the old line (10) comprising a roughing unit with one or more stands and a terminal segment (21) with a finishing train (15), a cooling area (17), systems to collect the product (18a, 18b) etc., the segment of new line (110) being achieved and installed in a position near the old line (10) while the old line (10) continues working, the segment of new line (110) being equipped substantially at the terminal end with a movable element (120) in order to be at least temporarily connected to the terminal end (21) of the old line (10).
摘要翻译： 为了改造由厚度大于160mm的板坯供给的旧式轧制线（10）并从堆积储存器（12）到达并且插入一段新的生产线，其包括至少一个 连续铸造机（19），用于生产薄板和中型板，具有附接的相对操作组件，例如提取，矫直，剪切装置等，旧线（10）包括具有一个或多个支架的粗加工单元和端子段（21 ），具有精整列车（15），冷却区域（17），收集产品（18a，18b）等的系统，新线路（110）的段被实现并安装在靠近旧线路 ），而旧线（10）继续工作，新线（110）的段基本上在终端装配有可移动元件（120），以便至少临时连接到可移动元件的终端（21） 旧线（10）。
-
公开(公告)号：US5803155A
公开(公告)日：1998-09-08
申请号：US646017
申请日：1996-05-07
CPC分类号： B22D11/1206 , B21B1/463 , B21B2015/0014 , B21B2201/14
摘要： The casting line for slabs comprises at least a mould (11), an assembly of foot rolls (12) located at the outlet of the mould (11), a plurality of containing and guide assemblies (13) associated with the vertical segment of the line, a possible extraction assembly cooperating downstream with the last containing and guide assembly (13) and a drawing assembly (16) associated with the horizontal segment of the line, the containing and guide assemblies (13) covering at least the whole vertical segment of the casting line, at least part of the rolls (14) of the containing and guide assemblies (13) cooperating with an actuator (19) governed by a data processing unit (20) to obtain a controlled soft-reduction pre-rolling at least in the second part of the vertical segment of the casting line.
摘要翻译： 用于板坯的铸造线至少包括模具（11），位于模具（11）的出口处的脚辊（12）的组件，多个容纳和引导组件（13），其与所述模具 线路，可能的下游提取组件与最后的容纳和引导组件（13）以及与所述线的水平段相关联的绘图组件（16）配合，所述容纳和引导组件（13）至少覆盖所述垂直段 铸造线，容纳和引导组件（13）的至少部分辊（14）与由数据处理单元（20）控制的致动器（19）配合，以获得至少控制的软还原预轧 在铸造线垂直段的第二部分。
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.041 秒)
