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1. 发明授权

US10697030B2 Plant combination for producing steel and method for operating the plant combination 有权
公开(公告)号：US10697030B2
公开(公告)日：2020-06-30
申请号：US15102418
申请日：2014-12-11
申请人： ThyssenKrupp AG
发明人： Reinhold Achatz , Jens Wagner , Markus Oles , Peter Schmöle , Ralph Kleinschmidt , Bärbel Kolbe , Matthias Patrick Krüger , Christoph Meißner
IPC分类号： C21B5/06 , C21B7/00 , C21C5/38 , C01C1/04 , C07C29/00 , C12P7/06 , C12P7/16 , C12P7/30 , C21C5/28 , C25B1/04 , F01D15/10
摘要： The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel, a gas-conducting system for gases that occur in the production of pig iron and/or in the production of crude steel, and a power-generating plant for electricity generation. The power-generating plant is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the production of pig iron and/or a partial amount of the converter gas. According to the invention, a chemical or biotechnological plant is provided and connected to the gas-conducting system and arranged in parallel with the power-generating plant with respect to the gas supply. Externally obtained electricity and power-generating plant electricity are used to cover the electricity demand of the plant complex.

2. 发明申请

US20160304978A1 COMBINED SYSTEM FOR PRODUCING STEEL AND METHOD FOR OPERATING THE COMBINED SYSTEM 审中-公开
标题翻译：用于生产钢的组合系统和操作组合系统的方法
公开(公告)号：US20160304978A1
公开(公告)日：2016-10-20
申请号：US15102142
申请日：2014-12-11
申请人： THYSSENKRUPP AG , THYSSENKRUPP INDUSTRIAL SOLUTIONS AG , THYSSENKRUPP STEEL EUROPE AG
发明人： Reinhold Achatz , Jens Wagner , Markus Oles , Peter Schmöle , Ralph Kleinschmidt , Matthias Patrick Krüger , Denis Krotov , Olaf von Morstein
IPC分类号： C21C5/28 , C25B15/08 , C21C5/40 , C21C1/00 , C21B3/04 , C12M1/00 , C21B7/00 , F01K7/30 , F01D15/10 , C01B3/02 , C01C1/04 , C07C29/151 , C25B1/04 , C21B5/00
摘要： The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel and a gas-conducting system for gases that occur in the production of pig iron and/or in the production of crude steel. According to the invention, the plant complex additionally has a chemical or biotechnological plant connected to the gas-conducting system and a plant for producing hydrogen. The plant for producing hydrogen is connected to the gas-conducting system by a hydrogen-carrying line. Also the subject of the invention is a method for operating the plant complex.
摘要翻译：本发明涉及一种钢铁生产用植物复合体，包括生产生铁的高炉，生产粗钢的转炉炼钢厂和生产生铁中产生的气体导气系统和/或生产粗钢。根据本发明，植物复合物还具有连接到导气系统的化学或生物技术设备和用于产生氢气的设备。生产氢气的工厂通过氢气输送管线与导气系统连接。本发明的主题也是操作植物复合物的方法。

3. 发明授权

US08021599B2 Method and installation for producing steel products with optimum surface quality 有权
标题翻译：生产具有最佳表面质量的钢制品的方法和安装
公开(公告)号：US08021599B2
公开(公告)日：2011-09-20
申请号：US12378305
申请日：2009-02-13
申请人： Fritz-Peter Pleschiutschnigg , Karl-Ernst Hensger , Dieter Rosenthal , Rainer Teworte , Dieter Tembergen
发明人： Fritz-Peter Pleschiutschnigg , Karl-Ernst Hensger , Dieter Rosenthal , Rainer Teworte , Dieter Tembergen
IPC分类号： C21B13/12 , C21C5/28 , C21C7/076 , C21C7/10
CPC分类号： C21C7/10 , B21B1/26 , B21B1/466 , B21B3/02 , B21B37/74 , B21B37/76 , B21B45/004 , B21B45/08 , B21B2201/14 , C21C5/5264 , C21C5/5294 , C21D8/02 , Y02P10/216 , Y10T29/5184
摘要： A method for producing steel products (1) with optimum surface quality wherein the molten steel (1b) is produced in a process route (10, 100; 12; 13) that is selected according to a desired final microstructure (9), by melting in a furnace (2b) with an electrode system (31), and in a vacuum degassing system; or by melting in a furnace installation (35) or an individual furnace vessel (30), in a ladle furnace (25), and in a differential-pressure vacuum degassing system (43); or by melting in a furnace (2b) with additions of alloying materials (26), a partial-quantity degassing in the ladle furnace (25), or a vacuum degassing system (27) and a ladle degassing (27).
摘要翻译：一种用于生产具有最佳表面质量的钢产品（1）的方法，其中在根据期望的最终微结构（9）选择的工艺路线（10,100; 12; 13）中，通过熔化在具有电极系统（31）的炉（2b）中，并在真空脱气系统中; 或在熔炉装置（35）或单独的炉容器（30）中，在钢包炉（25）中和在差压真空脱气系统（43）中熔化; 或者通过添加合金材料（26），在钢包炉（25）或真空脱气系统（27）和钢包脱气（27）中的部分数量的脱气在炉（2b）中熔化。

4. 发明授权

US6162387A Vacuum refining furnace 失效
标题翻译：真空精炼炉
公开(公告)号：US6162387A
公开(公告)日：2000-12-19
申请号：US219
申请日：1998-09-18
申请人： Kensuke Shimomura , Tadashi Imoto , Mayumi Okimori , Gaku Ogawa , Tomoaki Tanaka
发明人： Kensuke Shimomura , Tadashi Imoto , Mayumi Okimori , Gaku Ogawa , Tomoaki Tanaka
IPC分类号： C21C5/28 , C21C7/10 , C22B9/04
CPC分类号： C21C7/10 , C21C5/28 , C22B9/04 , Y10S266/903
摘要： A refining furnace used for vacuum refining has a sealing cover mounted on the refining furnace so as to cover the furnace throat of the refining furnace and to be in close contact with a sealing flange (10) formed on the refining furnace. The adhesion of metal and slag to the sealing flange is prevented without using any flange cover. A sealing flange (10) is formed on the outer surface of the refining furnace (1) at a position on a conical part (8) extending between the furnace throat (9) and a straight body part or on the straight body part. A slag-stopping dummy flange (11) is formed on the outer surface of the refining furnace (1) at a position between a furnace throat (9) and the sealing flange (10). The slag-stopping dummy flange (11) has an outer circumference lying on the inner side of the inner circumference of a sealing cover (4) and on the outer side of the inner circumference of a lower end part of a dust collecting hood for atmospheric refining.
摘要翻译： PCT No.PCT / JP98 / 00821 Sec。 371日期：1998年9月18日 102（e）1998年9月18日PCT 1998年2月27日提交PCT用于真空精炼的精炼炉具有安装在精炼炉上的密封盖，以覆盖精炼炉的炉喉，并与形成在精炼炉上的密封凸缘（10）。在不使用任何法兰盖的情况下，可以防止金属和炉渣对密封法兰的粘附。密封凸缘（10）在精炼炉（1）的外表面上形成在在炉喉（9）和直体部分之间或直体部分上延伸的锥形部分（8）上的位置处。在炉膛（9）和密封凸缘（10）之间的位置，在精炼炉（1）的外表面上形成止渣假模法兰（11）。防渣假凸缘（11）具有位于密封盖（4）的内周的内侧的外周和大气的集尘罩的下端部的内周的外侧精制。

5. 发明授权

US6126714A Revert manufactured from iron-bearing waste material 有权
标题翻译：由含铁废料回收
公开(公告)号：US6126714A
公开(公告)日：2000-10-03
申请号：US330181
申请日：1999-06-15
申请人： John D. Lynn , Colvin W. Smith , Glenn C. Keyser
发明人： John D. Lynn , Colvin W. Smith , Glenn C. Keyser
IPC分类号： C22B1/00 , C21C5/28 , C21C5/36 , C22B1/243 , C22B7/02 , C22B7/04
CPC分类号： C22B1/243 , C21C5/28 , C22B7/04 , Y02P10/216 , Y02P10/234 , Y10S75/952 , Y10S75/961
摘要： The invention is directed to a process for dehydrating and recycling back into a BOF converter wet BOF scrubber sludge to produce a steelmaking revert having an improved flow rate when handled in a recycle stream. Wet sludge is combined with hot BOF slag to provide a slag/sludge mixture. The wet sludge causes the mixture to have a moisture content greater than 10% water by weight, and the hot slag, having a temperature below the molten liquid state, vaporizes the water in the mixture and reduces the moisture content to about 4% water by weight or less. The dehydrated mixture has improved flow rate properties when it is recycled as a steelmaking revert.
摘要翻译：本发明涉及一种将BOF转化器湿BOF洗涤器污泥脱水回收并再循环的方法，以在循环流中处理时产生具有改善的流速的炼钢回收器。湿渣与热BOF渣混合，提供渣/污泥混合物。湿污泥使得混合物的水分含量大于10重量％，并且具有低于熔融液体状态的温度的热渣蒸发混合物中的水，并通过以下方式将水分含量降低至约4％重量或更少。脱水混合物在作为炼钢回收再循环时具有改善的流动性能。

6. 发明授权

US6030430A Blast furnace with narrowed top section and method of using 失效
公开(公告)号：US6030430A
公开(公告)日：2000-02-29
申请号：US122086
申请日：1998-07-24
申请人： H. Bruce Claflin , John Jasbinsek
发明人： H. Bruce Claflin , John Jasbinsek
IPC分类号： F23G5/00 , C10G1/00 , C10J3/00 , C10J3/02 , C10J3/16 , C10J3/20 , C21B5/00 , C21B7/00 , C21B7/16 , C21C5/28 , C21C5/30 , C21C5/36 , C21C5/40 , C22B7/02 , C21B5/06
CPC分类号： C21B5/008 , C21B5/00 , C21B5/001 , C21B7/00 , Y02E20/12 , Y02P10/212 , Y02P10/34 , Y10S75/958
摘要： Described herein is an Improved Converter System designed to help reduce air, land and water pollution by completely converting materials that presently cause pollution into clean burning fuels and a host of other products beneficial to mankind. The primary conversion unit in the system is a zone controlled multipurpose slagging-ash oxygen jet blast converter. All incoming materials are passed through this process computer aided talented offspring of its two ancient prototypes the blast furnace and slagging-ash gas producers and the zone controlled blast furnaces described in U.S. Pat. Nos. 4,381,938, 4,495,054, 3,928,023 and 3,814,404. It employs two sets of tuyeres located in the bosh to input endothermic reacting gases, vapors and dusts through tuyere sets T1 and T2. A 100% oxygen jet blast is also input through tuyere set T2. Three sets of tuyeres in the stack are used to output finished products and by-products, T3, T4 and T5, zone control the stack temperature profile and remove recycling in the stack materials.Incoming solid raw materials are charged in at the top and molten slag and metal are removed from near the bottom as in conventional blast furnace practice. As the burden descends it is completely converted by the precisely controlled as to temperature volume, and composition up moving gas stream. It is originated by combusting in the bosh a more central than conventional portion of the carbonaceous grate with the oxygen jet blast entering through tuyere set T2. It furnishes the heat required to completely convert the downmoving burden to a gas, vapor, molten slag, molten metal or dust. The portion of the gas withdrawn through tuyere set T3 just above the mantel in two modes of operation is an ideal boiler fuel or reducing gas as withdrawn. When it is combusted it produces only water, carbon dioxide and nitrogen, no harmful gases or chemical residues. All other by-products withdrawn or raw materials consumed in other units in the improved converter system producing finished products needed by mankind. Burning in the bosh a more central than conventional portion of the carbonaceous grate with the oxygen jet blast entering through tuyere set T2. It furnishes the heat required to completely convert the down moving burden to a gas, vapor, molten slag, molten metal or dust. The portion of the gas withdrawn through tuyere set T3 located in the stack just above the bosh is an ideal boiler fuel or reducing gas as withdrawn. When it is combusted it produces only water, carbon dioxide and nitrogen, no harmful gases or chemical residues.

7. 发明授权

US5980607A Steelmaking method with oxygen from rectification of air 失效
标题翻译：炼钢方法与氧气整流空气
公开(公告)号：US5980607A
公开(公告)日：1999-11-09
申请号：US841746
申请日：1997-04-30
申请人： Stephen Roger Clare , Martin Imre Mayer
发明人： Stephen Roger Clare , Martin Imre Mayer
IPC分类号： C01B13/02 , C21C5/28 , C21C5/46 , C21C7/072 , F25J3/04 , C21B5/00 , C21C7/068
CPC分类号： F25J3/04412 , C01B13/0248 , C21C5/28 , C21C7/072 , F25J3/04084 , F25J3/0409 , F25J3/04303 , F25J3/04545 , F25J3/04557 , F25J3/04678 , F25J3/04703 , C01B2210/0046 , C01B2210/0051 , C01B2210/0062 , C01B2210/0082 , C01B2210/0084 , C01B2210/0085 , F25J2200/90 , F25J2215/54 , F25J2235/58 , Y02P10/122 , Y02P10/128 , Y02P20/152
摘要： A method of supplying both an oxygen steelmaking process and an ironmaking process with oxygen. The oxygen is separated from air by rectification of the air. A first stream of oxygen from the rectification to the steelmaking process. A second stream of oxygen is also supplied from the rectification to the ironmaking process. The first and second streams of oxygen are both withdrawn from essentially the same stage of the rectification and both contain from about 97 to about 98% by volume of oxygen and less than about 100 parts per million of nitrogen.
摘要翻译：一种向氧气炼钢工艺和炼铁工艺供氧的方法。氧气通过空气的整流与空气分离。从整流到炼钢过程的第一流氧气。第二氧气流也从精馏提供给炼铁过程。第一和第二氧气流都从精馏的基本上相同的阶段排出，并且都含有约97至约98体积％的氧气和小于约100ppm的氮气。

8. 发明授权

US5769923A Decarburization refining process for chromium-containing molten metal and associated top blowing lance 失效
标题翻译：含铬熔融金属及相关顶吹喷枪的脱碳精炼工艺
公开(公告)号：US5769923A
公开(公告)日：1998-06-23
申请号：US680782
申请日：1996-07-16
申请人： Hiroshi Nishikawa , Masaru Washio , Tomomichi Terabatake , Akihito Hirota , Naoki Kikuchi
发明人： Hiroshi Nishikawa , Masaru Washio , Tomomichi Terabatake , Akihito Hirota , Naoki Kikuchi
IPC分类号： C21C5/00 , C21C5/28 , C21C5/46 , C21C7/068 , F27B3/22 , C21C5/30
CPC分类号： C21C7/0685 , C21C5/005 , C21C5/4606 , F27B3/225
摘要： Method and top blowing lance for decarburization refining chromium molten ferrous metal in which dust formation and chromium loss due to oxidation are suppressed and high productivity is achieved. Decarburization of molten ferrous metal is achieved by blowing gaseous oxygen into the molten metal in a refining furnace provided with a top blowing lance having a plurality of gas blowing nozzles at the tip of the lance. The gas blowing nozzles include at least one sub-nozzle provided at or near the lance axis and a plurality of main nozzles at an outer section of the lance. Blowing refining is carried out with oxygen flow from a plurality of the main nozzles at a flow rate higher than that from the sub-nozzle(s), when the carbon content in the molten metal is about 1 wt % or more.
摘要翻译：用于脱碳精炼铬冶炼黑色金属的方法和顶吹喷枪，其中由于氧化而产生粉尘形成和铬损失并且实现高生产率。熔融黑色金属的脱碳是通过在精炼炉中将气态氧吹入熔融金属而实现的，所述精炼炉具有在喷枪尖端具有多个气体吹制喷嘴的顶吹喷枪。气体喷射喷嘴包括设置在喷枪轴线处或附近的至少一个副喷嘴和在喷枪外部的多个主喷嘴。当熔融金属中的碳含量为约1重量％以上时，以比来自副喷嘴的流量高的流量从多个主喷嘴的氧气流进行吹炼精炼。

9. 发明授权

US5702502A Method for direct use of chromite ore in the production of stainless steel 失效
标题翻译：方法直接使用铬铁矿生产不锈钢
公开(公告)号：US5702502A
公开(公告)日：1997-12-30
申请号：US573316
申请日：1995-12-14
申请人： David M. Kundrat , Allan M. Smillie , Richard C. Sussman
发明人： David M. Kundrat , Allan M. Smillie , Richard C. Sussman
IPC分类号： C21C7/00 , C21C5/00 , C21C5/28 , C21C7/04 , C21C7/06 , C21C7/068 , C21C7/10 , C21B15/00 , C22B4/04 , C22B9/00
CPC分类号： C21C5/005
摘要： A three-stage process for obtaining metallic Cr units insitu during the production of stainless steel. Raw chromite ore or a concentrate produced from chromite ore is mixed with a carbonaceous reductant and slagging agents are added to an iron bath (24) for smelting and refining in a refining reactor (10). During the first stage, partially metallized chromite is smelted by carbon in the reactor that is top-and bottom-blown with oxygen and oxygen-containing gases respectively to produce a chromium alloy bath having a carbon content well below saturation. In the second stage, the alloy bath is decarburized by being bottom stirred with the oxygen-containing gas to the final bath carbon specification. In the third stage, the alloy bath is reduced by a metalloid reductant such as silicon or aluminum and again bottom stirred but with a non-oxidizing gas to achieve a high chromium yield. The reactor includes a top lance (18) extending through a throat (14) with a lower portion (20) of the lance extending to a point just above the bath and means (22) such as a tuyere or porous plug mounted at or near a bottom (16) and extending through a refractory lining (12) for stirring the iron bath containing dissolved carbon. Lance (18) includes a central passage (34) for injecting a compact, focused jet oxygen gas (30) that can penetrate through a slag layer (26) for decarburization of the iron bath and an outer passage (32) for discharging an oxygen gas (28) above the bath for post-combustion of CO to CO.sub.2. Passage (32) includes a plurality of evenly spaced annular diverging nozzles (33). The lance also includes a pair of concentric conduits (36) and (38) for conducting a coolant.
摘要翻译：在不锈钢生产过程中获得金属铬单元的三阶段工艺。将原铬铁矿或由铬铁矿生产的浓缩物与碳质还原剂混合，并将成渣剂加入到铁浴（24）中，以在精炼反应器（10）中熔炼和精炼。在第一阶段，部分金属化的铬铁矿分别用氧气和含氧气体进行顶吹和底吹的反应器中的碳熔炼，以产生碳含量远低于饱和度的铬合金浴。在第二阶段，通过与含氧气体底部搅拌至最终浴碳规格，使合金浴脱碳。在第三阶段中，合金浴由诸如硅或铝的类金属还原剂还原，并再次用底部搅拌而用非氧化性气体还原，以获得高的铬产率。反应器包括延伸穿过喉部（14）的顶部喷枪（18），其中喷枪的下部（20）延伸到浴的正上方，以及装置（22），例如安装在或靠近底部（16）并延伸穿过耐火衬里（12），用于搅拌含有溶解碳的铁浴。喷枪（18）包括一个中心通道（34），用于喷射一个致密聚焦的喷射氧气（30），该气体可以穿透用于铁浴脱碳的炉渣层（26），以及用于排出氧气的外部通道在浴上方的气体（28），用于CO至CO的后燃烧。通道（32）包括多个均匀间隔开的环形发散喷嘴（33）。喷枪还包括用于传导冷却剂的一对同心导管（36）和（38）。

10. 发明授权

US5462613A Method and apparatus for producing steel rods with a desired tensile strength and model for simulating same 失效
标题翻译：用于生产具有所需拉伸强度的钢棒的方法和装置以及用于模拟它的模型
公开(公告)号：US5462613A
公开(公告)日：1995-10-31
申请号：US254969
申请日：1994-06-07
申请人： Robert J. Glodowski , Allyen E. Wilson, III
发明人： Robert J. Glodowski , Allyen E. Wilson, III
IPC分类号： C21C5/28 , C21D9/573
CPC分类号： C21C5/285 , C21D9/5732
摘要： A method and apparatus are provided for producing rods having a desired tensile strength from a rod manufacturing process set to an optimal operating condition. Initially, the rod manufacturing process is set in an optimal condition to produce rods at a maximum rate, while optimizing the mechanical properties therein. Raw materials are melted and a "heat of steel" representing one lot is poured into a ladle which is sampled to determine its chemical composition. The percentage content of each element is utilized within an empirical model modeling the rod manufacturing process to predict the tensile strength of rods. The empirical model is again utilized to determine the amount by which a control element must be varied to adjust the predicted tensile strength to the desired tensile strength. The control element represents an element, such as, carbon which significantly impacts the tensile strength of the rod. The predicted level of the control element necessary to achieve the target tensile strength is referred to as the "floating aim level" thereof. If the floating aim level exceeds a maximum accepted level for the control element the empirical model is again used to determine the necessary level of a second control element. Next, the heat of steel is trimmed to provide a lot having the target tensile strength.
摘要翻译：提供了一种方法和装置，用于从棒制造过程设置到最佳操作条件来生产具有期望拉伸强度的棒。最初，杆制造过程被设定在最佳条件下，以最大速率生产杆，同时优化其中的机械性能。将原材料熔化，将代表一批的“钢热”倒入钢包中，该钢包被取样以确定其化学成分。在一个经验模型中利用每个元素的百分比来建模棒制造过程来预测棒的拉伸强度。经验模型再次用于确定控制元件必须变化的量，以将预测的拉伸强度调整到所需拉伸强度。控制元件表示一种元素，例如显着影响杆的拉伸强度的碳。实现目标拉伸强度所需的控制元件的预测值被称为“浮动目标水平”。如果浮动目标水平超过控制元件的最大可接受水平，则经验模型再次用于确定第二控制元件的必要水平。接下来，对钢的热量进行修整以提供具有目标拉伸强度的很多。

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