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1. 发明授权

US07094271B2 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel 失效
标题翻译：生产不锈钢的方法，特别是含有铬和铬 - 镍的高级钢
公开(公告)号：US07094271B2
公开(公告)日：2006-08-22
申请号：US10399007
申请日：2001-09-27
申请人： Karl Reiner Götzinger , Stefan Lemke , Johann Reichel , Bernt Rollinger
发明人： Karl Reiner Götzinger , Stefan Lemke , Johann Reichel , Bernt Rollinger
IPC分类号： C21B11/10 , C21C5/30
CPC分类号： C21C5/5264 , C21C5/005 , C21C5/5252 , C21C7/0685
摘要： The invention relates to a method for producing stainless steels, in particular steels containing chromium and chromium-nickel. The method is carried out in a melting device containing a metallurgical vessel, or in a melting device (1) containing at least two vessels (2, 3) for supplying a steel-casting installation, an electric arc furnace process (1) and an air-refining process taking place alternately in the two vessels (2, 3). To improve the efficiency of a method of this type, the aim of the invention is to carry out a reversible treatment of unreduced converter slag in the electric-arc furnace mode. To achieve this, in the first treatment stage, the slag (19) with a high chromium content is melted together with the added charge, the slag is then reduced during the melting process with the silicon and carbon under favorable thermodynamic conditions of the arc, once the slag has reached a minimum temperature of 1,490° C. and the slag is subsequently removed. The air-refining process is then carried out, during which the carbon content is reduced to a value of less than 0.9%. The metal slag (18) is tapped at a tapping temperature of between 1,620 and 1,720° C., the unreduced slag (19) with a high chromium content from the air-refining process remaining in the treatment vessel.
摘要翻译：本发明涉及一种生产不锈钢的方法，特别是含有铬和铬 - 镍的钢。该方法在包含冶金容器的熔化装置中进行，或在包含至少两个用于供应铸钢装置的容器（2,3）的熔化装置（1）中进行，电弧炉工艺（1）和两个船只（2,3）交替进行空气精炼过程。为了提高这种方法的效率，本发明的目的是在电弧炉模式下对未还原的转炉炉渣进行可逆处理。为了实现这一点，在第一处理阶段，具有高铬含量的炉渣（19）与添加的电荷一起熔化，然后在电弧的有利的热力学条件下，在熔融过程中，用硅和碳还原炉渣，一旦渣达到最低温度为1490℃，随后除去渣。然后进行空气精炼过程，在此期间碳含量降低到小于0.9％的值。金属渣（18）在1,620和1,720℃之间的出钢温度下被攻丝，剩余在处理容器中的来自空气精炼工艺的具有高铬含量的未还原炉渣（19）。

2. 发明申请

US20060196308A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace 审中-公开
标题翻译：在电弧炉中从含有金属氧化物的炉渣中回收金属元素，特别是金属铬的方法
公开(公告)号：US20060196308A1
公开(公告)日：2006-09-07
申请号：US10556496
申请日：2004-04-23
申请人： Bernt Rollinger , Johann Reichel
发明人： Bernt Rollinger , Johann Reichel
IPC分类号： C22B34/32
CPC分类号： C22B34/32 , C21C5/5264 , C21C5/56 , C21C7/0087 , C21C2005/5276 , C22B5/10 , C22B7/04 , Y02P10/214 , Y02P10/216 , Y02P10/23
摘要： The invention relates to a method for recovering metallic elements, especially metallic chromium, from slag containing oxides, especially chromium oxides, in an electric-arc furnace. According to said method, the slag is not reduced in a separate step after melting, but the following steps are carried out: a charge is introduced into tile electric-arc furnace, and melted, forming a molten metal and slag; said molten metal is tapped off, leaving the unreduced slag in the furnace vessel; a further charge of scrap metal including reducing agents for tile slag is added; the slag is reduced during the melting of said charge; and the slag and the molten metal are then lapped off. The inventive method can also be used in ladle metallurgy or converter metallurgy.
摘要翻译：本发明涉及在电弧炉中从含有氧化物，特别是铬氧化物的炉渣中回收金属元素，特别是金属铬的方法。根据上述方法，在熔融后的分离工序中，炉渣不会被还原，但是进行以下步骤：将电荷引入瓷砖电弧炉中，熔化，形成熔融金属和炉渣; 所述熔融金属被分离，将未还原的炉渣留在炉容器中; 添加另外的废金属，包括瓦片渣的还原剂; 在所述电荷熔化期间，炉渣被还原; 然后将渣和熔融金属粉碎。本发明的方法也可以用于钢包冶金或转炉冶金。

3. 发明授权

US5350434A Process and apparatus for making molten steel 失效
标题翻译：用于制造钢水的工艺和设备
公开(公告)号：US5350434A
公开(公告)日：1994-09-27
申请号：US61765
申请日：1993-05-13
申请人： Bernt Rollinger
发明人： Bernt Rollinger
IPC分类号： C21C5/28 , C21B13/00 , C21C5/52 , C21C5/56 , C21C7/00 , C22B4/00
CPC分类号： C21B13/0013 , C21C5/567 , C21C2007/0093 , C21C5/52 , C21C5/565 , Y02P10/216
摘要： The process for making a refined molten steel includes melting preheated solid iron sources and solid carbon sources in a melting vessel with heat generated by electric arc to form a carbon-containing molten material and then melting other preheated solid iron and carbon sources in the carbon-containing molten material by heat generated by combustion reaction in the melting vessel. In the combustion reaction oxygen is fed into the molten material through nozzles located in the melting vessel below the surface of the molten bath. The exhaust gases formed in the melting vessel are used to preheat the solid iron sources and then are burned in an afterburner to reduce pollution. An apparatus for performing the process is also described.
摘要翻译：制造精炼钢水的方法包括在熔融容器中熔化预热的固体铁源和固体碳源，由电弧产生的热量形成含碳熔融材料，然后熔化其中预热的固体铁和碳源，通过在熔融容器中的燃烧反应产生的热量容纳熔融材料。在燃烧反应中，氧气通过位于熔融槽表面下方熔融容器内的喷嘴进入熔融材料。在熔融容器中形成的废气用于预热固体铁源，然后在加力燃烧器中燃烧以减少污染。还描述了用于执行该处理的装置。

4. 发明授权

US4448402A Apparatus for directly making liquid pig-iron from coarse iron ore 失效
标题翻译：用于从粗铁矿石直接制造液体生铁的设备
公开(公告)号：US4448402A
公开(公告)日：1984-05-15
申请号：US494096
申请日：1983-05-12
申请人： Ralph Weber , Bernt Rollinger , Rolf Hauk , Michael Nagle , Bernhard Rinner
发明人： Ralph Weber , Bernt Rollinger , Rolf Hauk , Michael Nagle , Bernhard Rinner
IPC分类号： C21B13/00 , C21B13/14 , F27B1/20
CPC分类号： C21B13/14 , C21B13/002
摘要： A device is described for directly making liquid pig-iron from coarse iron ore. Hot sponge-iron particles are directly conveyed by a worm conveyor (17) through a communicating passage (19) from a direct-reduction blast-furnace shaft (2) into a smelter-gasifier (1), and a stream (24) of gas flows, after cooling to below 950.degree. C., in counter-current to the sponge-iron particles, from the smelter-gasifier (1) to the blast-furnace shaft (2), this gas stream having a volumetric flow-rate not more than 30 percent of the total reduction-gas flow reaching the blast-furnace shaft (FIG. 1).
摘要翻译：描述了用于从粗铁矿石直接制造液体生铁的装置。热海绵铁颗粒通过蜗杆传送器（17）直接通过连通通道（19）从直接还原高炉轴（2）输送到冶炼炉 - 气化器（1）中，并且流（24）在从熔化炉 - 气化器（1）到高炉井（2）的冷却至950℃以下的与海绵铁颗粒相反的气体中，气体流动，具有体积流量不超过到达高炉轴的总还原气体流量的30％（图1）。

5. 发明授权

US4409023A Process for directly making liquid pig-iron from coarse iron ore 失效
标题翻译：从粗铁矿直接生产液态生铁的工艺
公开(公告)号：US4409023A
公开(公告)日：1983-10-11
申请号：US300904
申请日：1981-09-10
申请人： Ralph Weber , Bernt Rollinger , Rolf Hauk , Michael Nagl , Bernhard Rinner
发明人： Ralph Weber , Bernt Rollinger , Rolf Hauk , Michael Nagl , Bernhard Rinner
IPC分类号： C21B13/00 , C21B13/14
CPC分类号： C21B13/14 , C21B13/002
摘要： A process and a device are described for directly making liquid pig-iron from coarse iron ore. Hot sponge-iron particles are directly conveyed by a worm conveyor (17) through a communicating passage (19) from a direct-reduction blast-furnace shaft (2) into a smelter-gasifier (1), and a stream (24) of gas flows, after cooling to below 950.degree. C., in counter-current to the sponge-iron particles, from the smelter-gasifier (1) to the blast-furnace shaft (2), this gas stream having a volumetric flow-rate not more than 30 percent of the total reduction-gas flow reaching the blast-furnace shaft (FIG. 1).
摘要翻译：描述了从粗铁矿石直接制造液体生铁的方法和装置。热海绵铁颗粒通过蜗杆传送器（17）直接通过连通通道（19）从直接还原高炉轴（2）输送到冶炼炉 - 气化器（1）中，并且流（24）在从熔化炉 - 气化器（1）到高炉井（2）的冷却至950℃以下的与海绵铁颗粒相反的气体中，气体流动，具有体积流量不超过到达高炉轴的总还原气体流量的30％（图1）。

6. 发明授权

US4392637A Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions 失效
标题翻译：具有能够在不同方向旋转的喷嘴或燃烧器的冶金熔化设备
公开(公告)号：US4392637A
公开(公告)日：1983-07-12
申请号：US300903
申请日：1981-09-10
申请人： Ralph Weber , Bernt Rollinger , Michael Nagl , Bernhard Rinner
发明人： Ralph Weber , Bernt Rollinger , Michael Nagl , Bernhard Rinner
IPC分类号： C21B7/16 , C21B11/00 , F23C5/06 , F27B1/16 , F27B3/20
CPC分类号： C21B7/16 , F23C5/06 , F27B1/16
摘要： Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions. The blow-nozzle or burner comprises at least one tube. The nozzle-head (12) has a bulge, in the example described a spherical calotte (13), which is retained between two ring-seats (14 and 15) (the FIGURE).
摘要翻译：具有能够在不同方向旋转的喷嘴或燃烧器的冶金熔化设备。喷嘴或燃烧器包括至少一个管。喷嘴头（12）在该实施例中具有凸起，其形成为保持在两个环座（14和15）（图）之间的球形电缆（13）。

7. 发明授权

US4317677A Process for producing liquid crude iron and reduction gas 失效
标题翻译：生产液化粗铁和还原气的方法
公开(公告)号：US4317677A
公开(公告)日：1982-03-02
申请号：US81490
申请日：1979-10-03
申请人： Ralph Weber , Emil Elsner , Walter Maschlanka , Bernt Rollinger , Gerhard Sanders
发明人： Ralph Weber , Emil Elsner , Walter Maschlanka , Bernt Rollinger , Gerhard Sanders
IPC分类号： C21B11/02 , C21B13/00 , C21B13/14 , C21B11/00
CPC分类号： C21B13/0073 , C21B13/002 , C21B13/143 , Y02P10/136
摘要： A process for the production of molten crude iron and reduction gas is described wherein the molten iron and gas are formed in a smelting gasifier, to which is introduced at the upper portion thereof preheated sponge iron of particle size between 3 mm and 30 mm and coal to form a fluidized bed, and an oxygen-containing gas at the lower portion thereof, and controlling the ratio of oxygen-containing gas and coal to maintain a high temperature zone in the lower portion of the gasifier and a lower temperature zone in the upper portion thereof, the oxygen-containing gas being introduced substantially immediately above the resulting melt which is formed at the bottom of the gasifier.
摘要翻译：描述了生产熔融粗铁和还原气体的方法，其中在熔融气化炉中形成铁水和气体，在其上部引入粒度在3mm至30mm之间的预热海绵铁和煤在其下部形成流化床和含氧气体，并控制含氧气体和煤的比例，以保持气化器下部的高温区和上部的较低温度区部分地，基本上立即在形成在气化器底部的所得熔体上方引入含氧气体。

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