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1. 发明专利

JP2011219818A Dephosphorizing method 有权
标题翻译：去磷化方法
公开(公告)号：JP2011219818A
公开(公告)日：2011-11-04
申请号：JP2010090399
申请日：2010-04-09
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKAMURA MASANOBU , YAMAMOTO YUKI , TSUSHIMA TAKU
IPC分类号： C21C1/02 , C21C5/35
摘要： PROBLEM TO BE SOLVED: To reliably produce general purpose steel by optimizing the oxygen ratio of a solid oxygen source and supply timing of the solid oxygen source.SOLUTION: When dephosphorization of molten iron is performed by supplying a gas oxygen source and a solid oxygen source in a top-blown converter type refining vessel before a decarburization process, the solid oxygen ratio of the solid oxygen source for total oxygen is 10-60%. During supply of 0 to less than 10% of gas oxygen of total gas oxygen used for dephosphorization, 30-80% of the total solid oxygen source is charged, and the residual solid oxygen source is charged during supply of 10 to less than 60% of gas oxygen of the total gas oxygen. The supply rate when the residual solid oxygen source is charged is 0.3-1.5 Nm/min/t, and when 60% or more of gas oxygen of the total gas oxygen is supplied, the solid oxygen source is not supplied.
摘要翻译：要解决的问题：通过优化固体氧源的氧比和固体氧源的供应时间来可靠地生产通用钢。解决方案：在脱碳过程之前，通过在顶吹转炉型精炼容器中供给气体氧源和固体氧源进行铁水脱磷时，固体氧源对于总氧的固体氧比为 10-60％。在用于脱磷的总气体氧气中的0至小于10％的气体供应期间，将总固体氧源的30-80％加入，并且在供给10至小于60％的气体氧气的总气体氧气。当残留的固体氧源被充电时的供给速率为0.3-1.5Nm 3 / min / t，并且当提供总气体氧气的60％或更多的气体氧，不提供固体氧源。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2010229511A Method for operating blast furnace 审中-公开
标题翻译：操作BLAST FURNACE的方法
公开(公告)号：JP2010229511A
公开(公告)日：2010-10-14
申请号：JP2009079480
申请日：2009-03-27
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SAWAYAMA MUNEYOSHI , UCHIDA HISASHI , TADAI RIKIZO , TSUSHIMA TAKU
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for operating a blast furnace with which in the blast furnace charging limestone as sub-raw material from the furnace top-part, especially even in the blast furnace blowing a large quantity of fine powdery coals by blending many pellets, the blast furnace operation is stabilized by reliably preventing non-slagging of the limestone in the lower part of the furnace and further, lower cost of the pig iron can be attained.
SOLUTION: In the method for operating the blast furnace, charging the limestone as the sub-raw material from the furnace top-part, this method is performed as follows: the limestone is charged into an ore layer and also, a volume average granular diameter d
LS (unit:mm) of the limestone, is set as the following formula. The formula: d
LS ≤0.1067×T
F -5.267W
LS/T -134.8. Wherein, W
LS/T : the limestone charging speed (kg/min/number of tuyeres) per one piece of the tuyere in the blast furnace, and T
F : the theoretical combustion temperature (°C) at the front of the tuyere.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种操作高炉的方法，在高炉中将来自炉顶部的原料装入石灰石，特别是在高炉中吹送大量细粉煤通过混合许多颗粒，高炉操作通过可靠地防止炉子下部的石灰石不成渣而稳定，并且还可以降低生铁成本。解决方案：在高炉操作方法中，将来自炉顶部的副原料装入石灰石中，该方法如下进行：将石灰石装入矿石层，并将体积石灰石的平均粒径d LS（单位：mm）设定为下式。公式：d ≤0.1067×T -5.267W -134.8。其中W LS / T ：高炉风口中每一片风口的石灰石充气速度（风口/公斤/风口数）和T F ：在风口前方的理论燃烧温度（℃）。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2009115558A Slug analysis method 有权
标题翻译： SLUG分析方法
公开(公告)号：JP2009115558A
公开(公告)日：2009-05-28
申请号：JP2007287757
申请日：2007-11-05
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： SUZUKI RYOHEI , TSUSHIMA TAKU , NAKAMURA SHUYA
IPC分类号： G01N1/36 , G01N23/223
摘要： PROBLEM TO BE SOLVED: To provide a slug analysis method of correctly and rapidly analyzing the trace elements inside a slug, especially, volatile trace elements.
SOLUTION: After the slug is crushed, 95% of the collected slug or more has a sphere-converted diameter of ≤50 μm. A sample is formed, by applying a pressure of ≥30 t/cm
2 and pressing it for a period of 20 seconds or longer, and has a thickness of 2-4 mm and irregularities of ≤0.05 mm on analysis plane. The volatile trace element inside the slug is analyzed, by irradiating the analysis plane with X rays, at a voltage of 30-40 kV and a current of 50-70 mA.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种分块分析方法，用于正确且快速地分析渣块内的微量元素，特别是挥发性微量元素。
解决方案：在塞子被压碎后，95％的收集的塞子或更多的球体转换直径≤50μm。通过施加≥30t/ cm 2的压力形成样品，并将其压制20秒或更长时间，并且具有2-4mm的厚度和≤0.05mm的不规则在分析平面上。通过用X射线照射分析平面，在30〜40kV的电压和50〜70mA的电流下，分析絮状物内部的挥发性微量元素。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2013237902A Dust recycle method 有权
标题翻译： DUST RECYCLE方法
公开(公告)号：JP2013237902A
公开(公告)日：2013-11-28
申请号：JP2012111898
申请日：2012-05-15
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TSUSHIMA TAKU , SUGITANI TAKASHI , SAWAYAMA MUNEYOSHI
IPC分类号： C21C5/38
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a dust recycle method in which dust produced in a decarbonizing treatment can be reused to the utmost in a decarbonizing furnace while suppressing the zinc content in molten steel obtained and the amount of lead eluted from slag produced in a decarbonizing treatment.SOLUTION: In a dust recycle method, the amount of particulate dust X (kg/t) charged into a decarbonizing furnace satisfies the following formula (1): X≤(172-100B)/A and formula (2): X≤(6.34-100b+0.0292c-0.708d)/a. In the formula (1), A represents the zinc concentration (mass%) in the particulate dust; and B represents the amount of zinc (kg/t) contained in raw materials other than the particulate dust charged into the decarbonizing furnace. In the formula (2), (a) represents the lead concentration (mass%) in the particulate dust; (b) represents the amount of lead (kg/t) contained in raw materials other than the particulate dust charged into the decarbonizing furnace; (c) represents the amount of slag (kg/t) produced in the decarbonizing furnace; and (d) represents the basicity of the slag.
摘要翻译：要解决的问题：提供一种粉尘再循环方法，其中在脱碳炉中最大程度地重新使用脱碳处理中产生的粉尘，同时抑制所获得的钢水中的锌含量和从脱碳生成的炉渣中洗脱的铅的量处理。解决方案：在粉尘循环方法中，装入脱碳炉中的粉尘X（kg / t）的量满足下式（1）：X≤（172-100B）/ A和式（2）：X ≤（6.34-100b + 0.0292c-0.708d）/ a。在式（1）中，A表示颗粒状粉尘中的锌浓度（质量％）; B表示除了装入脱碳炉内的粉尘以外的原料中所含的锌（kg / t）。式（2）中，（a）表示颗粒状粉尘中的铅浓度（质量％）。（b）表示除了装入脱碳炉内的微粒尘埃以外的原料中含有的铅（kg / t）（c）表示脱碳炉中产生的炉渣量（kg / t）和（d）表示炉渣的碱度。

5. 发明专利

JP2013221165A Sintered ore 有权
标题翻译：烧结ORE
公开(公告)号：JP2013221165A
公开(公告)日：2013-10-28
申请号：JP2012092067
申请日：2012-04-13
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： ARAI HIROTADA , HOSONO YUI , TSUSHIMA TAKU , DEURA TETSUSHI
IPC分类号： C22B1/16 , C21C1/02 , C21C5/28
摘要： PROBLEM TO BE SOLVED: To use sintered ore not only for a blast furnace but also for dephosphorizing treatment.SOLUTION: A sintered ore can be obtained by sintering a sintering material containing iron ore and carbonaceous material. When a matrix perimeter length for each matrix unit area of the sintered ore is X and mass of calcium ferrite contained in the sintered ore is Y, Z=1/X+Y/100 is 1.8 or more, X≤0.74 mm/mm, and Y≤4 mass%. Thereby the sintered ore has sufficient strength as a blast furnace raw material and further has superior dephosphorizing performance.
摘要翻译：要解决的问题：不仅用于高炉而且还用于脱磷处理。烧结矿可以通过烧结含铁矿石和含碳材料的烧结材料获得。当烧结矿的每个矩阵单位面积的基体周长为X，烧结矿中所含的铁酸钙质量为Y时，Z = 1 / X + Y / 100为1.8以上，X≤0.74mm/ mm， Y≤4质量％。因此，烧结矿石作为高炉原料具有足够的强度，并且还具有优异的脱磷性能。

6. 发明专利

JP2012153549A Method for recovering valuable metal from steelmaking slag 有权
标题翻译：从钢铁渣中回收有价金属的方法
公开(公告)号：JP2012153549A
公开(公告)日：2012-08-16
申请号：JP2011011874
申请日：2011-01-24
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TSUSHIMA TAKU , SAKAMOTO KOICHI
IPC分类号： C04B5/00 , B09B3/00 , B09B5/00 , C22B1/00 , C22B7/04 , C22B47/00
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To enhance the recovery rate of iron-manganese oxide recovered from steelmaking slag.SOLUTION: This method for recovering valuable metals from steelmaking slag containing CaO-SiO-POphase and (Fe, Mn)Ophase includes: removing the base metal from the steelmaking slag; adjusting basicity of the steelmaking slag to 1.5-2.5; crushing the slag from which the base metal has been removed so that the typical particle size of the slag after crushing becomes ≤50 μm; classifying the crushed slag into coarse particles and fine particles so that the ratio of the typical particle size of the coarse particles to the typical particle size of the fine particles becomes ≥2.5 times; and recovering the coarse particles after classification.
摘要翻译：要解决的问题：提高从炼钢炉渣回收的铁锰氧化物的回收率。
解决方案：从含有CaO-SiO 2 -P 2 O 5 相和（Fe，Mn）O x 相包括：从炼钢渣中除去母材; 调整炼钢渣的碱度至1.5-2.5; 粉碎已经除去贱金属的炉渣，使粉碎后的渣的典型粒径为≤50μm; 将粉碎的渣分类为粗颗粒和细颗粒，使得粗颗粒的典型粒径与微粒的典型粒径的比例变为≥2.5倍; 并在分级后回收粗颗粒。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2011105971A Method for recovering valuable element from by-product of refining 有权
标题翻译：从精炼副产品中回收有价值元素的方法
公开(公告)号：JP2011105971A
公开(公告)日：2011-06-02
申请号：JP2009259978
申请日：2009-11-13
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TSUSHIMA TAKU
IPC分类号： C22B7/04 , B09B3/00 , C04B5/00 , C21C1/02 , C21C5/28 , C22B47/00
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To easily recover valuable elements included in a by-product of refining S produced upon refining. SOLUTION: There is disclosed a method for recovering valuable elements from a by-product of refining S produced upon refining. In the method, the valuable elements being the object for recovery contained in the by-product of refining S are recovered by bringing the by-product of refining S into contact with a solid matter 6 while a part or the whole of compounds of the valuable elements is melted, wherein the solid matter 6 has a porosity of ≥15% and contains a compound which forms a solid solution with the above molten compounds of the valuable elements. The by-product of refining S is slag produced by dephosphorization treatment or decarburization treatment in a steel making process, and Fe and Mn are recovered by bringing the slag S into contact with the solid matter 6 containing MgO as a principal component at 1,350 to 1,400°C. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：为了容易地回收包括在精炼后生产的精炼S的副产物中的有价值的元素。解决方案：公开了一种从精制后生产的精炼S的副产物中回收有价值元素的方法。在该方法中，通过使精炼S的副产物与固体物质6接触而回收，作为精炼S的副产物中所含的回收对象的有价值元素，而有价值的化合物的一部分或全部化合物元素熔化，其中固体物质6的孔隙率≥15％，并且含有与上述有价值元素的熔融化合物形成固溶体的化合物。精炼S的副产物是在炼钢过程中通过脱磷处理或脱碳处理产生的炉渣，通过使炉渣S与含有MgO作为主要成分的固体物质6接触，回收Fe和Mn，为1,350〜1,400 C。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010126744A Method for dephosphorizing molten pig iron 审中-公开
公开(公告)号：JP2010126744A
公开(公告)日：2010-06-10
申请号：JP2008300029
申请日：2008-11-25
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KIMURA SEII , YAMAMOTO HIRONORI , TSUSHIMA TAKU
IPC分类号： C21C1/02 , C21C5/35 , C21C5/36
摘要： PROBLEM TO BE SOLVED: To enhance dephosphorization efficiency when dephosphorizing molten pig iron while reducing the amount of non-slagging CaO.
SOLUTION: The method for dephosphorizing molten pig iron is directed for dephosphorizing the molten pig iron 3 by charging the molten pig iron 3 into a converter 1 or a ladle having a bottom blowing function includes: dividing each of lime and converter slag to be charged into the molten pig iron 3 according the sizes, and determining each amount to be supplied to the molten pig iron 3 according the sizes; and optimizing the density of a stirring power of the bottom blowing which stirs the molten pig iron 3, on the basis of each amount of the lime and the converter slag to be supplied which have been divided into the sizes.
COPYRIGHT: (C)2010,JPO&INPIT

9. 发明专利

JP2008038232A Molten-steel treatment method which can inhibit slag from forming 有权
标题翻译：可以阻止形成滑石的钢铁处理方法
公开(公告)号：JP2008038232A
公开(公告)日：2008-02-21
申请号：JP2006217775
申请日：2006-08-10
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TSUSHIMA TAKU , NAKAMURA MASANOBU
IPC分类号： C21C7/00
摘要： PROBLEM TO BE SOLVED: To provide a molten-steel treatment method which can inhibit slag from forming during the treatment of molten steel. SOLUTION: The molten-steel treatment method includes increasing a carbon content in the molten steel by charging carbon into the molten steel which has been blown down in a converter, in a ladle, wherein one part or all of the charged material has a carbon content C [wt.%] of more than 70. The treatment method also includes controlling a ratio C/A at the end of molten steel treatment, which is a ratio of a CaO content [wt.%] in a slag at the end of the molten steel treatment divided by an Al 2 O 3 content [wt.%] at the ending time so that a weight Wc [kg/ton Steel ] of carbon added through the charge of the material and the ratio C/A at the end of molten steel treatment can satisfy any of the following expressions: (1) Wc×1.7+0.6≤C/A≤2.0, when Wc is smaller than 0.4; (2) Wc×0.2+1.2≤C/A≤2.0, when Wc is 0.4 or larger but smaller than 1.5; and (3) 1.5≤C/A≤2.0, when Wc is 1.5 or larger. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种在钢水处理期间可以抑制炉渣形成的钢水处理方法。解决方案：钢水处理方法包括通过在钢包中将碳填充到已经在转炉中被吹走的钢水中来增加钢水中的碳含量，其中一部分或全部带电材料具有碳含量C [wt。％]大于70％。处理方法还包括控制钢水处理结束时的C / A比，其为炉渣中CaO含量[wt。％] 结束时钢水处理量除以Al 2 3 含量[wt。％]，使得重量Wc [kg / ton 钢“）和钢水处理结束时的比例C / A可以满足下列任何一个表达式：（1）Wc×1.7 +0.6≤C/A≤2.0 当Wc小于0.4时; （2）当Wc为0.4以上且小于1.5时，Wc×0.2 +1.2≤C/A≤2.0; 和（3）1.5≤C/A≤2.0，当Wc为1.5以上时。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2014084526A Method for manufacturing direct-reduced iron 审中-公开
标题翻译：制造直接还原铁的方法
公开(公告)号：JP2014084526A
公开(公告)日：2014-05-12
申请号：JP2012237276
申请日：2012-10-26
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TSUSHIMA TAKU , O SHORIN , YOSHIDA SHINGO , TATEISHI MASATAKA
IPC分类号： C21B13/00 , C21B13/10 , C21B13/12 , C22B1/16 , C22B1/244 , C22B5/10 , C22B7/02
CPC分类号： C22B1/16 , C21B13/00 , C21B13/0046 , C21B13/006 , C21B13/008 , C22B1/14 , C22B1/245 , C22B5/10 , C22B7/02 , Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing direct-reduced iron capable, on an occasion for manufacturing direct-reduced iron by heating an agglomerate, of improving the productivity of the direct-reduced iron by enhancing the yield of the direct-reduced iron.SOLUTION: The provided method for manufacturing direct-reduced iron includes a step of agglomerating a mixture including an iron oxide source, a carbonaceous reductant, and a melting point adjuster and a step of heating the obtained agglomerate and reducing the iron oxide within the agglomerate, whereas a mass including at least 1 mass% of silicate minerals having solidus temperatures of 1300°C or below is used as the agglomerate. It is desirable for the silicate minerals to include volatile contents, to be of the amphibole group, and to comprise at least one type selected from the group consisting of actinolite, cummingtonite, and grunerite. The silicate minerals can be used as the iron oxide source or melting point adjuster.
摘要翻译：要解决的问题：提供一种制造直接还原铁的方法，其能够通过加热附聚物来制造直接还原铁，通过提高直接还原铁的直接还原铁的产率来提高直接还原铁的生产率所提供的直接还原铁的制造方法包括使包含氧化铁源，碳质还原剂和熔点调节剂的混合物凝聚的步骤，以及将获得的附聚物加热并还原氧化铁的步骤凝聚物，而使用包含至少1质量％的固相线温度为1300℃以下的硅酸盐矿物的质量作为附聚物。硅酸盐矿物质优选包括挥发性成分，并且包含至少一种选自由以下组成的组中的至少一种：放射钙质，钙矾石和苦杏仁。硅酸盐矿物可用作氧化铁源或熔点调节剂。

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