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1. 发明专利

JP2009249697A Desulfurizing agent and method for desulphurizing molten iron 审中-公开
标题翻译：脱硫剂和用于硫化铁的方法
公开(公告)号：JP2009249697A
公开(公告)日：2009-10-29
申请号：JP2008100408
申请日：2008-04-08
申请人： Jfe Mineral Co Ltd , Jfe Steel Corp , Jfeスチール株式会社 , Jfeミネラル株式会社
发明人： IWAASA MAKI , HINO YUTA , OYAMA TOMOJI , NABESHIMA SEIJI , SUZUKI TAKESHI , KUSAMA TOMONORI
IPC分类号： C21C1/02 , C21C7/04 , C21C7/064 , C21C7/072 , C21C7/076
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a desulfurizing agent having CaO as the main component with which the agent can be manufactured with comparatively simple method and even in the case of being the molten iron at the low temperature of ≤1300°C, the desulfurization can be highly efficiently performed. SOLUTION: The desulfurizing agent contains CaO-containing powdery material containing CaO as the main component and CaF 2 , and a solid powdery material which mainly contains Al 2 O 3 and SiO 2 , and solidifies after pre-melting. In this case, it is desirable to use ≥5 mass% to ≤[100-10X]mass% [wherein X is CaF 2 content (mass%) of in the CaO-containing powdery material] of the blending ratio of the above solid powdery material or to use a blast furnace slag generated as a by-product when the molten iron is produced in the blast furnace as the solid powdery material. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种以相对简单的方法制备具有CaO作为主要成分的脱硫剂，即使在低于≤1300℃的铁水的情况下，可以高效率地进行脱硫。解决方案：脱硫剂含有含有CaO作为主要成分的CaO的粉末状材料，CaF 2 ，以及主要含有Al 2 O 3的固体粉末材料， SB> 3 和SiO 2 ，并在预熔化后固化。在这种情况下，优选使用≥5质量％〜≤[100-10×]质量％[其中，X是含CaO粉末材料中的CaF 2 含量（质量％）] 上述固体粉末材料的混合比例，或者当在高炉中生产作为固体粉末材料的铁水时，使用作为副产物产生的高炉矿渣。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009132969A Top and bottom-blown converter 有权
标题翻译：顶部和底部转换器
公开(公告)号：JP2009132969A
公开(公告)日：2009-06-18
申请号：JP2007309846
申请日：2007-11-30
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OYAMA TOMOJI , TANAKA YOSHIYUKI , IZAWA TOMOO , KAMEYAMA KYOICHI
IPC分类号： C21C5/35 , C21C5/30
摘要： PROBLEM TO BE SOLVED: To obtain a converter in which the generating quantity of humic dust is reduced and also, a metallurgical characteristic can be improved.
SOLUTION: In a top and bottom-blown converter including a top-blown lance and bottom-blown tuyeres, the bottom-blown tuyeres 5a, 5b, 5c, 5d, 5e and 5f are disposed out of the bottom-blown fire-point viewed from above by maldistributing to the molten steel-tapping hole side or to the charging side from the center axis 1 of the converter. Further, a range disposing the bottom-blown tuyeres 5a, 5b, 5c, 5d, 5e and 5f is made to be a range slipping to the molten steel tapping hole or the charging side from the center axis 1 of the converter by the length of 1/4 of the maximum diameter of the converter.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得腐蚀性粉尘的产生量减少的转炉，并且还可提高冶金特性。解决方案：在顶吹和底吹式转炉中，包括顶吹喷枪和底吹风口，底吹风口5a，5b，5c，5d，5e和5f设置在底吹火焰之外通过从转炉的中心轴1向钢水龙头侧或充气侧分布不均匀，从上方观察。此外，将底吹风口5a，5b，5c，5d，5e，5f的配置范围设定为从转炉的中心轴1向钢水龙头或充电侧滑动的距离为转换器最大直径的1/4。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2013086107A Method and apparatus for continuously casting steel 有权
标题翻译：连续铸钢的方法和装置
公开(公告)号：JP2013086107A
公开(公告)日：2013-05-13
申请号：JP2011226699
申请日：2011-10-14
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ITO YOICHI , NABESHIMA SEIJI , OYAMA TOMOJI , MATSUMOTO RYUJI , NAKASEKO MAKOTO
IPC分类号： B22D11/124 , B22D11/128 , B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for continuously casting a steel capable of effectively preventing generation of cross-section defects.SOLUTION: In the method for continuously casting the steel, a radiation thermometer 11 capable of measuring the total width of a cast slab is installed in a range within 5 m from a position L=D/2K(D: total thickness (mm) of the slab, K: solidification constant (mm min)), which is a final solidification position in the case where the casting speed is set to 2.0 m/min. When a difference in temperature in the cast slab width direction ΔT_width (°C ) measured by the radiation thermometer 11 exceeds 150°C, the cooling intensity for the cast slab is adjusted in a cooling zone range that satisfies d/D=0.1 to 0.4, where d is the thickness (mm) of a solidified shell and D is the total thickness (mm) of the slab, so that the difference in temperature in the case slab width direction is equal to or less than 150°C.
摘要翻译：解决的问题：提供一种能够有效防止产生横截面缺陷的连续铸造钢的方法和装置。解决方案：在连续铸造钢的方法中，能够测量铸坯的总宽度的辐射温度计11安装在从位置L 2.0 < / SB> = D 2 / 2K 2 （D：板坯的总厚度（mm），K：凝固常数 mm min - 1/2 ）），其为铸造速度为2.0m / min的情况下的最终凝固位置。当由辐射温度计11测量的铸坯宽度方向ΔT_width（℃）的温度差超过150℃时，在满足d / D = 0.1〜0.4的冷却区域范围内调整铸坯的冷却强度，其中d是固化壳的厚度（mm），D是板坯的总厚度（mm），使得板坯宽度方向上的温度差等于或小于150℃。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2009114491A Method for refining molten steel by rh-vacuum degassing apparatus 有权
标题翻译：通过真空脱气装置精炼钢的方法
公开(公告)号：JP2009114491A
公开(公告)日：2009-05-28
申请号：JP2007287102
申请日：2007-11-05
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OYAMA TOMOJI , KOYANAGI TAKAYUKI , TANAKA YOSHIYUKI , KAMEYAMA KYOICHI
IPC分类号： C21C7/06 , C21C7/04 , C21C7/068 , C21C7/076 , C21C7/10
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a refining method by which when an Al-less extra-low carbon steel is refined using an RH-vacuum degassing apparatus, the erosion of a refractory in the RH-vacuum degassing apparatus caused by slag and deoxidation product can be prevented, as a result, the productivity of the RH-vacuum degassing apparatus is improved and production cost can be remarkably reduced compared with the conventional method. SOLUTION: The method for refining molten steel with the use of the RH-vacuum degassing apparatus is provide in which unoxidized molten steel 3 is vacuum-degassing-treated using the RH-vacuum degassing apparatus and thereafter, Si-source for deoxidation is added into the molten steel in a RH-vacuum vessel 5 and the molten steel is deoxidized, and the Al-less extra-low carbon steel having ≤0.001 mass% Al content is refined by the RH-vacuum degassing apparatus, wherein at any timing of before charging the Si-source for deoxidation at the end period of the vacuum decarburization treatment, at the same time of charging the Si-source for deoxidation or after charging the Si-source for deoxidation, a flux 16 containing MgO as the main component is added into the molten steel in the RH-vacuum vessel. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种精炼方法，当使用RH-真空脱气装置对不含Al的超低碳钢进行精炼时，由炉渣引起的RH真空脱气装置中的耐火材料的侵蚀并且可以防止脱氧产物，结果，与常规方法相比，RH真空脱气装置的生产率提高并且生产成本可以显着降低。解决方案：使用RH真空脱气装置对钢水进行精炼的方法，其中使用RH真空脱气装置对未氧化的钢水3进行真空脱气处理，然后进行脱氧用Si源在RH真空容器5中加入到钢水中，钢水脱氧，通过RH真空脱气装置对Al含量≤0.001质量％的Al-Al超低碳钢进行精制，在真空脱碳处理结束期间，在将Si源进行脱氧之前或在用于脱氧的Si源充电之后，在将Si源进行脱氧之前进行脱氧的时间，含有MgO作为主要的助熔剂16 将组分添加到RH真空容器中的钢水中。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2009191300A Method for desulfurizing molten pig iron 有权
标题翻译：用于脱硫铸铁的方法
公开(公告)号：JP2009191300A
公开(公告)日：2009-08-27
申请号：JP2008031198
申请日：2008-02-13
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OYAMA TOMOJI , INOUE YOSHINORI , TANAKA YOSHIYUKI , IZAWA TOMOO
IPC分类号： C21C1/02
摘要： PROBLEM TO BE SOLVED: To provide a method for efficiently desulfurizing molten pig iron, which can enhance the efficiency of a desulfurization reaction compared to a conventional method without needing a new cost for remodeling a facility, when desulfurizing the molten pig iron while using a mechanically stirring type desulfurization device.
SOLUTION: The method for desulfurizing the molten pig iron includes desulfurizing the molten pig iron by adding a CaO-based desulfurization agent 6 which has been divided into three or more stages onto the top of the hot pig iron that is stirred by an impeller 4 at an interval of three minutes or longer, when desulfurizing the hot pig iron 3 in the mechanically stirring type desulfurization apparatus while using the CaO-based desulfurizing agent.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了提供一种有效地使生铁脱硫的方法，与常规方法相比，可以提高脱硫反应的效率，而不需要重新设计设备的新成本，当熔融生铁脱硫时使用机械搅拌式脱硫装置。解决方案：用于对生铁进行脱硫的方法包括通过将已分成三级或更多级的CaO类脱硫剂6添加到热生铁的顶部上，使熔融生铁脱硫，在使用CaO系脱硫剂的同时，在机械搅拌型脱硫装置中对热生铁3进行脱硫时，间隔3分钟以上的叶轮4。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009221559A Impeller for mechanical-stirring type desulfurizing apparatus 有权
标题翻译：机械搅拌式脱硫装置用叶轮
公开(公告)号：JP2009221559A
公开(公告)日：2009-10-01
申请号：JP2008068642
申请日：2008-03-18
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OYAMA TOMOJI , TANAKA YOSHIYUKI , SUMI IKUHIRO
IPC分类号： C21C1/02
摘要： PROBLEM TO BE SOLVED: To provide an impeller for mechanical-stirring type desulfurizing apparatus with which in the case of applying the desulfurize-treatment to molten iron with the mechanical-stirring type desulfurizing apparatus provided with the impeller, a new facility reforming cost is not needed, and aggregation of a CaO-based desulfurizing agent can be restrained and thereby, the desulfurizing reaction interfacing area is increased and the desulfurize-treatment can efficiently be performed by making to be high of the desulfurizing reaction efficiency. SOLUTION: The impeller 1 for mechanical-stirring type desulfurizing apparatus is provided with: an impeller shaft 2; a plurality of blades 3 arranged at the periphery of the impeller shaft, and applying the desulfurization to the molten iron by rotating with the impeller shaft as rotation-center; and a projecting part 4 inclined to the lower part toward the impeller shaft side from the blade side and projected to lower part in the impeller shaft side, is provided on the lower surface of the blades and the impeller shaft. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决问题的方案为了提供一种用于机械搅拌型脱硫装置的叶轮，在用设有叶轮的机械搅拌型脱硫装置对铁水进行脱硫处理的情况下，新的设备重整不需要成本，可以抑制CaO系脱硫剂的聚集，从而提高脱硫反应接合面积，并且可以通过使脱硫反应效率高而有效地进行脱硫处理。解决方案：用于机械搅拌式脱硫装置的叶轮1设置有：叶轮轴2; 设置在叶轮轴的周边的多个叶片3，通过以叶轮轴为旋转中心的旋转将脱硫施加到铁水中; 并且在叶片和叶轮轴的下表面上设置有从叶片侧向下部向叶轮轴侧倾斜并突出到叶轮轴侧的下部的突出部4。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2012232333A Vertical bending type continuous casting machine, continuous casting method, and cooling unit extension method of the continuous casting machine 有权
标题翻译：连续式连续铸造机，连续铸造方法和连续铸造机的冷却单元延伸方法
公开(公告)号：JP2012232333A
公开(公告)日：2012-11-29
申请号：JP2011103109
申请日：2011-05-02
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TANAKA YOSHIYUKI , OYAMA TOMOJI , OSHIMA KENJI , MIKUNI MASATO
IPC分类号： B22D11/124 , B22D11/08 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To improve the quality of a cast slab 12 while controlling any meandering.SOLUTION: There is provided a continuous casting of the type in which a dummy bar is inserted from the lower side, in particular, a vertical bending type continuous casting machine capable of executing the cooling by a vertical section with a plurality of cooling segments being arrayed therein. Each cooling segment has a cast slab cooling mechanism and a plurality of pairs of guide rolls 5 for guiding a cast slab 12, and a plurality of pairs of pinch rolls 6 are arranged, which impart the downward force to the cast slab 12 with respect to the downstream position from the plurality of cooling segments. A plurality of pairs of guide rolls 5 and a plurality of pairs of pinch rolls 11 are arranged in the cooling segment 10 which is arranged on a lowest part among the plurality of cooling segments. The diameter of the pinch rolls 11 is smaller than the diameter of the pinch rolls 6 located on the downstream side of the plurality of cooling segments.
摘要翻译：要解决的问题：为了提高铸坯12的质量，同时控制任何蜿蜒曲折。解决方案：提供一种从下侧插入虚拟棒的连续铸造，特别是能够通过具有多个冷却的垂直部分进行冷却的垂直弯曲型连续铸造机在其中排列片段。每个冷却段具有铸坯冷却机构和用于引导铸造板坯12的多对导向辊5，并且布置多个成对的夹送辊6，其相对于铸造板12向铸造板12施加向下的力来自多个冷却段的下游位置。多个引导辊5和多对夹送辊11布置在冷却段10中，冷却段10布置在多个冷却段中的最下部。夹送辊11的直径小于位于多个冷却段的下游侧的夹送辊6的直径。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2011042865A Method of desulfurizing molten iron 有权
标题翻译：冷却铁的方法
公开(公告)号：JP2011042865A
公开(公告)日：2011-03-03
申请号：JP2010051581
申请日：2010-03-09
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OYAMA TOMOJI , TANAKA YOSHIYUKI , INOUE YOSHINORI , IZAWA TOMOO
IPC分类号： C21C1/02
CPC分类号： C21C7/0645 , C21C1/06 , C21C7/0075 , F27D27/00
摘要： PROBLEM TO BE SOLVED: To provide a method of desulfurizing molten iron 2, whereby reaction efficiency of an added desulfurizing agent can be improved.
SOLUTION: The method of desulfurizing molten iron 2 comprises stirring the molten iron 2 to which the desulfurizing agent 8 is added and thereby dispersing the desulfurizing agent 8 to desulfurize the molten iron 2. Here, the desulfurizing agent 8 is added to the molten iron 2 in a plurality of batches in a manner such that stirring is temporarily stopped or conducted at a reduced stirring force when adding at least one of the second or later batches of the desulfurizing agent 8 in order to cause a slag 9 to rise to the surface of the molten iron 2, and the desulfurizing agent 8 is added to the floating slag 9.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供铁水2的脱硫方法，可以提高添加的脱硫剂的反应效率。解决方案：铁水2的脱硫方法包括搅拌加入脱硫剂8的铁水2，由此分散脱硫剂8使铁水2脱硫。这里，将脱硫剂8加入到以多个批次的铁水2的方式，使得当加入至少一个第二批次或后续的脱硫剂8批次时，以减少的搅拌力暂时停止或进行搅拌，以使渣9升至铁水2的表面和脱硫剂8被添加到浮渣9中。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2011042815A Method for desulfurizing molten iron 有权
标题翻译：用于脱硫铁的方法
公开(公告)号：JP2011042815A
公开(公告)日：2011-03-03
申请号：JP2009189784
申请日：2009-08-19
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KIKUCHI NAOKI , IWAASA MAKI , MATSUI AKITOSHI , OYAMA TOMOJI , TANAKA YOSHIYUKI , KISHIMOTO YASUO
IPC分类号： C21C1/02
摘要： PROBLEM TO BE SOLVED: To efficiently disperse added desulfurizing agent in molten iron by optimizing the eccentric amount of an impeller, and simultaneously optimizing the additional position of the desulfurizing agent according to disorder of a rotational stream of the molten iron in order to minimize the load of a motor torque caused by the eccentricity while securing the sufficient forcible direction in the rotational stream, when the molten iron is desulfurized while causing the forcible disorder to the rotational stream of the molten iron by making the impeller into an eccentric state.
SOLUTION: In the case of desulfurizing the molten iron by immersing the impeller 4 into the molten iron 3 stored into a refining vessel 2, rotating the impeller 4 into the molten iron while making the rotational shaft 4a thereof into almost vertical state, and stirring the desulfurizing agent 7 on the molten iron and the molten iron, when the inner diameter of the refining vessel is defined as D, the rotational shaft is made eccentric to the center of the refining vessel within
摘要翻译：要解决的问题：通过优化叶轮的偏心量，有效地将添加的脱硫剂分散在铁水中，同时根据铁水的旋转流的紊乱同时优化脱硫剂的附加位置，以便在通过使叶轮成为偏心状态的同时使铁水脱硫而对铁水的旋转流产生强制混乱的同时，将由偏心引起的电动机转矩的负荷减至最小，同时确保旋转流中的足够的强制方向。解决方案：在通过将叶轮4浸入到精炼容器2中储存的铁水3中来使铁水脱硫的情况下，将叶轮4旋转成铁水同时使其旋转轴4a处于几乎垂直的状态，并且在铁水和铁水上搅拌脱硫剂7时，当精炼容器的内径定义为D时，旋转轴在精炼容器的中心偏心于

10. 发明专利

JP2009079257A Method for producing molten steel 审中-公开
标题翻译：生产钢铁的方法
公开(公告)号：JP2009079257A
公开(公告)日：2009-04-16
申请号：JP2007249360
申请日：2007-09-26
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： TANAKA YOSHIYUKI , OYAMA TOMOJI , SUGA TAKUYA , KAMEYAMA KYOICHI
IPC分类号： C21C7/04 , B09B3/00 , C22B1/242 , C22B5/04 , C22B7/02
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To produce molten steel by effectively utilizing Mn-containing dust generated in a production process of ferro-manganese as Mn source in an alloy component for steel. SOLUTION: The production method for molten steel in this invention is performed as the followings, that a formed material containing Mn-containing dust, aluminum dross generated in the production process for ferro-manganese and binder for agglomerating these materials, is charged in a ladle during tapping off of the molten steel from a refining furnace into a ladle, and manganese oxide in the Mn-containing dust is reduced with the metallic Al in the aluminum dross to recover the Mn-content in the Mn-containing dust into the molten steel. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过在钢的合金成分中有效地利用铁锰的Mn生成过程中产生的含Mn粉末作为Mn源来生产钢水。解决方案本发明的钢水的制造方法如下进行：在铁锰的生产工艺中产生的含有锰的粉尘，产生的铝浮渣和用于使这些材料凝聚的粘合剂的成形材料被充入在将钢水从精炼炉中取出到钢包中时在钢包中，并且含锰粉尘中的锰氧化物与铝渣中的金属Al还原，以使含Mn粉尘中的Mn含量回收到钢水。版权所有（C）2009，JPO＆INPIT

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