公开(公告)号：US08764879B2

公开(公告)日：2014-07-01

申请号：US13318857

申请日：2010-05-07

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C21B15/00 ,  C21B13/12

CPC分类号： C21C5/527 ,  C21C5/54 ,  C21C7/0087 ,  C21C2005/366 ,  C21C2007/0062 ,  C21C2300/02 ,  Y02P10/216

摘要： During the production of non-stainless steel, slag containing a high proportion of metal oxides, primarily iron oxide, is formed during the smelting of the solid material in the electric arc furnace. The concentration of the iron oxide often reaches values of more than 20%. This slag has a poor foaming capability and does not permit the typical characteristics of a carbon steel slag to be achieved. In order to cause such a slag to foam, according to the invention it is proposed to load the electric arc furnace with pellets or briquettes (8) which consist of a defined mixture of an iron oxide carrier and an iron carrier as ballast material, of carbon as reducing agent and also of a binder material, which react in the electric arc furnace in a reducing manner, floating under the slag (7) in the steel melt (6). The reaction gases (12) produced in this way consist primarily of carbon monoxide and advantageously support the foaming of the slag.

摘要翻译： 在非不锈钢的生产过程中，在电弧炉中固体材料的熔炼过程中形成了含有高比例金属氧化物，主要是氧化铁的炉渣。 氧化铁的浓度通常达到超过20％的值。 该渣具有差的发泡能力，不能实现碳钢渣的典型特征。 为了使这样的炉渣发泡，根据本发明，提出了将电弧炉装载到由氧化铁载体和铁载体的限定混合物组成的颗粒或团块（8）作为压载材料， 碳作为还原剂以及还原剂在电弧炉中以还原的方式反应，漂浮在钢熔体（6）内的炉渣（7）下方。 以这种方式生产的反应气体（12）主要由一氧化碳组成，并有利地支持炉渣的起泡。

公开(公告)号：US08043402B2

公开(公告)日：2011-10-25

申请号：US12223416

申请日：2007-01-15

申请人： Johann Reichel ,  Lutz Rose ,  Miroslav Karbowniczek

发明人： Johann Reichel ,  Lutz Rose ,  Miroslav Karbowniczek

IPC分类号： C21B13/12

CPC分类号： C21C5/527 ,  C21C7/0025 ,  C21C2005/5288 ,  C21C2007/0062 ,  C21C2300/02 ,  F27B3/10 ,  Y02P10/216

摘要： A method for producing a foamed slag (1) on a metal bath (2) in a metallurgical furnace (3), in which a mixture (4) containing at least one metal oxide and carbon is introduced into the furnace (3), the metal oxide is reduced by the carbon below the slag (1) that is located there, and the gases produced during the reduction process form bubbles such that the slag is foamed. In order to optimize the formation of foamed slag, the mixture (4) is delivered into the furnace (3) in such a way that a desired height (h) or a desired section of the height (h) of the layer of foamed slag (1) is generated or maintained.

摘要翻译： 在冶金炉（3）的金属浴（2）上制造发泡渣（1）的方法，其中将含有至少一种金属氧化物和碳的混合物（4）引入炉（3）中， 金属氧化物被位于那里的炉渣（1）下方的碳减少，并且在还原过程中产生的气体形成气泡，使得炉渣发泡。 为了优化泡沫炉渣的形成，将混合物（4）以这样的方式被输送到炉子（3）中，使得所需的高度（h）或发泡炉渣层的高度（h）的所需部分 （1）生成或维护。

公开(公告)号：US20060260435A1

公开(公告)日：2006-11-23

申请号：US10557190

申请日：2004-04-23

申请人： Lutz Rose ,  Johann Reichel

发明人： Lutz Rose ,  Johann Reichel

IPC分类号： C21B13/12

CPC分类号： C21C7/0087 ,  C21C5/5264 ,  C21C5/54 ,  C21C7/0037 ,  C21C2300/02 ,  Y02P10/216

摘要： The invention relates to a method for producing foamed slag on high-chromium steel melts in an electric furnace, whereby a mixture consisting of a metal oxide and carbon is introduced into the furnace, the metal oxide in the slag is reduced by the carbon, and the gases created in the slag form bubbles which thus foam up the slag. In order to be able to control the gas formation and thus the foaming process, the mixture consisting of a metal oxide and carbon and optionally an iron carrier is introduced as preforms, such as pellets, which are compressed and/or provided with a binding agent. The gas formation can be controlled in terms of location, type and time, by adjusting the characteristics of the pellets, especially the density and/or compression characteristics thereof.

摘要翻译： 本发明涉及一种在电炉中生产高铬钢熔体上的发泡渣的方法，由此将由金属氧化物和碳组成的混合物引入炉中，炉渣中的金属氧化物被碳还原， 在炉渣中产生的气体形成气泡，从而使炉渣发泡。 为了能够控制气体形成和发泡过程，将由金属氧化物和碳组成的混合物和任选的铁载体引入作为压缩和/或提供结合剂的预制件，例如颗粒 。 通过调整颗粒的特性，特别是其密度和/或压缩特性，可以根据位置，类型和时间来控制气体形成。

公开(公告)号：US08133296B2

公开(公告)日：2012-03-13

申请号：US12734341

申请日：2008-10-22

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C21B13/12

CPC分类号： C22C33/04 ,  C21B13/006 ,  C21B13/12 ,  C21B13/143 ,  C21C5/005 ,  C22B23/021 ,  C22C37/08

摘要： In order to allow a significant reduction of the steel production cost when producing stainless steel with the alloying elements chromium and nickel, according to the invention, it is proposed to perform the intermediate production of ferrochrimium and ferronickel in two separate direct reduction processes based on low-cost chromium ore and nickel ore in two SAF (3, 4) arranged in parallel on the primary side of a processing converter (6).

摘要翻译： 为了在使用合金元素铬和镍制造不锈钢时显着降低钢铁生产成本，根据本发明，建议以两种分开的直接还原方法为基础进行中间生产铁 - 铁和镍铁 在处理转换器（6）的初级侧并联排列的两个SAF（3,4）中的铬铬矿和镍矿。

公开(公告)号：US20100089202A1

公开(公告)日：2010-04-15

申请号：US12449424

申请日：2008-01-10

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C21C7/00 ,  C21C5/54 ,  C21C5/52

CPC分类号： C21C5/527 ,  C21C5/5264 ,  C21C5/54 ,  C21C7/0087 ,  C21C2007/0062 ,  C21C2300/02 ,  Y02P10/216

摘要： During the production of stainless steel, a slag is formed during the melting of the solid material in the electric arc furnace, the slag having a high degree of metal oxides, particularly chromium oxide. The chromium concentration often reaches values of more than 30%. Currently, such slags cannot be reduced to a desired degree due to their composition. In order to minimize the resulting high loss of recyclable material, the invention provides to charge the electric arc furnace with pellets, or briquettes (8), which are made of a defined mixture of an iron carrier as the ballast material, carbon, or carbon and silicon, as the reducing agent, and a binder, wherein they react beneath the slag layer (7) in the steel melt (6) with the metal oxides of the slag (7), particularly with the chromium oxide present, in a floating, chemical, and reducing manner. The reaction gases (12) produced in the process, which are mainly made of carbon monoxide, advantageously support a foaming of the slag (7).

摘要翻译： 在不锈钢生产过程中，在电弧炉内的固体材料熔化过程中形成炉渣，炉渣具有高度的金属氧化物，特别是氧化铬。 铬浓度通常达到30％以上。 目前，由于它们的组成，这样的炉渣不能降低到期望的程度。 为了最小化所产生的可再循环材料的高损失，本发明提供了用电铸炉（8）对电弧炉进行充电，所述颗粒或压块（8）由铁载体作为压载材料，碳或碳的限定混合物制成 和作为还原剂的硅以及粘合剂，其中它们与钢熔体（6）中的熔渣层（7）之下与炉渣（7）的金属氧化物（特别是存在的铬氧化物）在浮动状态下反应 ，化学和还原方式。 在该方法中产生的主要由一氧化碳制成的反应气体（12）有利地支持炉渣（7）的发泡。

公开(公告)号：US08673047B2

公开(公告)日：2014-03-18

申请号：US13002915

申请日：2009-07-03

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C21C5/54

CPC分类号： C21C7/0087 ,  C21C5/527 ,  C21C5/54 ,  C21C2005/366 ,  Y02P10/216

摘要： A process and material for producing foamed slag by which the foaming of a slag with a high chromium oxide content can be achieved. An electric arc furnace is charged with a mixture of metal oxides and carbon and, below the slag at the metal-slag interface, the metal oxide is reduced by carbon and limestone and becomes thermally discordant. The occurring gases cause the slag to foam due to the formation of bubbles.

摘要翻译： 用于生产泡沫炉渣的方法和材料，通过该方法和材料可以实现具有高氧化铬含量的炉渣的发泡。 在电弧炉中装有金属氧化物和碳的混合物，并且在金属 - 炉渣界面处的炉渣下方，金属氧化物被碳和石灰石还原，变得热不和谐。 所产生的气体由于形成气泡而导致炉渣发泡。

公开(公告)号：US20090255375A1

公开(公告)日：2009-10-15

申请号：US12223416

申请日：2007-01-15

申请人： Johann Reichel ,  Lutz Rose ,  Miroslav Karbowniczek

发明人： Johann Reichel ,  Lutz Rose ,  Miroslav Karbowniczek

IPC分类号： C22B9/10

CPC分类号： C21C5/527 ,  C21C7/0025 ,  C21C2005/5288 ,  C21C2007/0062 ,  C21C2300/02 ,  F27B3/10 ,  Y02P10/216

摘要： The invention relates to a method for producing a foamed slag (1) on a metal bath (2) in a metallurgical furnace (3). According to said method, a mixture (4) containing at least one metal oxide and carbon is introduced into the furnace (3), the metal oxide is reduced by means of the carbon below the slag (1) that is located there, and the gases produced during the reduction process form bubbles such that the slag is foamed. In order to optimize the formation of foamed slag, the mixture (4) is delivered into the furnace (3) in such a way that a desired height (h) or a desired section of the height (h) of the layer of foamed slag (1) is generated or maintained.

摘要翻译： 本发明涉及一种用于在冶金炉（3）中的金属浴（2）上生产泡沫炉渣（1）的方法。 根据该方法，将含有至少一种金属氧化物和碳的混合物（4）引入炉（3）中，通过位于炉渣（1）下方的碳来还原金属氧化物， 在还原过程中产生的气体形成气泡，使得炉渣发泡。 为了优化泡沫炉渣的形成，将混合物（4）以这样的方式被输送到炉子（3）中，使得所需的高度（h）或发泡炉渣层的高度（h）的所需部分 （1）生成或维护。

公开(公告)号：US20130192422A1

公开(公告)日：2013-08-01

申请号：US13634710

申请日：2011-01-24

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C10L5/36

CPC分类号： C10L5/361 ,  C21C5/527 ,  C21C2005/5282 ,  C21C2300/02 ,  Y02P10/216

摘要： It is known that a foamed slag can be produced on stainless steel melts in an electric arc furnace by introducing a mixture of metal oxides, limestone, carbon and a binder in the form of briquettes into the furnace so that the briquettes become arranged there in such a way that the metal oxides are reduced by the carbon and the limestone is thermally dissociated at the metal-slag interface beneath the slag and the resulting gases bring about foaming of the slag by bubble formation. This foaming on steels having a high chromium content, due to the significant uptake of chromium oxide by the slag, leads to problems which result from the physicochemical properties of slags having a high chromium oxide content. To provide, according to the invention, briquettes suitable for producing foamed slag having a high chromium oxide content, which is carried out, in particular by the process of WO 2010/003401 A1, all briquette properties to be taken into account and all materials suitable for briquette production are tabulated in the form of a matrix.

摘要翻译： 众所周知，通过将金属氧化物，石灰石，碳和粘结剂的混合物以压块的形式引入炉中，可以在电弧炉中的不锈钢熔体上生产泡沫炉渣，使得压块在其中排列在炉中 金属氧化物被碳还原的方式，并且石灰石在炉渣下方的金属 - 炉渣界面处热解离，并且所产生的气体通过气泡形成引起炉渣的起泡。 由于铬的氧化铬的显着摄取，铬含量高的钢的这种发泡会导致由具有高氧化铬含量的炉渣的物理化学性质而产生的问题。 根据本发明，为了提供适合于生产具有高铬氧化物含量的泡沫炉渣的压块，特别是通过WO 2010/003401 A1的方法进行，所有的煤样性质都要考虑到并且所有材料都适合 用于块煤的生产以矩阵的形式列出。

公开(公告)号：US20110197708A1

公开(公告)日：2011-08-18

申请号：US13002915

申请日：2009-07-03

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C21C5/52

CPC分类号： C21C7/0087 ,  C21C5/527 ,  C21C5/54 ,  C21C2005/366 ,  Y02P10/216

摘要： A process and material for producing foamed slag by which the foaming of a slag with a high chromium oxide content can be achieved. An electric arc furnace is charged with a mixture of metal oxides and carbon and, below the slag at the metal-slag interface, the metal oxide is reduced by carbon and limestone and becomes thermally discordant. The occurring gases cause the slag to foam due to the formation of bubbles.

摘要翻译： 用于生产泡沫炉渣的方法和材料，通过该方法和材料可以实现具有高氧化铬含量的炉渣的发泡。 在电弧炉中装有金属氧化物和碳的混合物，并且在金属 - 炉渣界面处的炉渣下方，金属氧化物被碳和石灰石还原，变得热不和谐。 所产生的气体由于形成气泡而导致炉渣发泡。

公开(公告)号：US08747518B2

公开(公告)日：2014-06-10

申请号：US13522637

申请日：2011-01-05

申请人： Johann Reichel ,  Lutz Rose

发明人： Johann Reichel ,  Lutz Rose

IPC分类号： C21C5/28

CPC分类号： C21C5/28 ,  C21C2300/02

摘要： In order to carry out foaming of a slag having a high ratio of chromium oxide having values of often above 20% of a non-corrosive melt in an AOD (Argon Oxygen Decarburization) or MRP (Metallurgical Refining Process) converter or CONARC SSt for stainless steel by adding a foam material, according to the invention a previously defined mixture (5) of a metal oxide, iron carrier, carbon and binding material in the form of pellets or briquettes (4) is introduced into the converter, which reacts in a chemically reducing manner under the slag layer (2) due to the high ambient temperature, wherein gaseous carbon monoxide formed in particular by means of the reduction process of the metal oxide with the carbon within the pellets or briquettes (4) induces the slag foaming with the gas bubbles (7) thereof and wherein the specific density of the pellets or briquettes (4) and the resolve time of the reduction process are selected so that optimal bubble formation in respect of size and duration is achieved.

摘要翻译： 为了在AOD（氩氧化脱碳）或MRP（冶金精炼工艺）转炉或CONARC SSt的不锈钢中进行具有高于非腐蚀性熔体的20％以上的氧化铬比例高的炉渣发泡 通过添加泡沫材料的钢，根据本发明，将金属氧化物，铁载体，碳和粒料形式的粘结材料（4）的预定义的混合物（5）引入转化器中，所述混合物（5）在 由于环境温度高，在渣层（2）下的化学还原方式，其中特别通过金属氧化物与颗粒内的碳的还原过程形成的气体一氧化碳（4）引起炉渣发泡， 其气泡（7），并且其中选择颗粒或团块（4）的比密度和还原过程的分解时间，使得关于尺寸和持续时间的最佳气泡形成为 。。