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1. 发明专利

JP2014076481A Continuous casting facility, and continuous casting method 有权
标题翻译：连续铸造设备和连续铸造方法
公开(公告)号：JP2014076481A
公开(公告)日：2014-05-01
申请号：JP2012226732
申请日：2012-10-12
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , YOSHIDA HIROMI , MURAI TAKESHI , ARAMAKI NORICHIKA , MIKI YUJI
IPC分类号： B22D11/11 , B22D11/115
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting facility capable of preventing capture to a coagulation shell of an acid-removed product, an Ar gas bubble and mold powder, when continuously casting by impressing a DC magnetostatic field over the whole width direction of a slab casting piece.SOLUTION: A continuous casting facility according to the present invention is a continuous casting facility having an upper magnetic pole 6 having the center positioned on an upper side than a discharge hole 5 of an immersion nozzle 4 and opposed by sandwiching a casting mold long side 2 and a lower magnetic pole 9 having the center positioned on a lower side than the discharge hole of the immersion nozzle and opposed by sandwiching the casting mold long side, on a back face of the casting mold long side, and impressing a DC magnetostatic field over the slab casting piece whole width from the lower magnetic pole, and superimposably impressing the DC magnetostatic field over the slab casting piece whole width from the upper magnetic pole and an AC movement magnetic field over the slab casting piece whole width, and a DC electromagnet for impressing the DC magnetostatic field of the upper magnetic pole, is divided into four parts in a width direction of a casting mold, and is constituted so that magnetic flux density impressed from the DC electromagnet can be independently changed by the divided respective DC electromagnets.
摘要翻译：要解决的问题：提供一种连续铸造设备，其能够防止在酸性去除产物，Ar气泡和模具粉末的凝结壳体上的捕获，当通过在整个宽度方向上施加DC静磁场而连续铸造时板坯铸件。解决方案：根据本发明的连续铸造设备是具有上磁极6的连续铸造设备，上磁极6的中心位于比浸没喷嘴4的排出孔5的上侧，并且通过夹持铸件模具长边2和下部磁极9，其中心位于比浸入式喷嘴的排出孔低的下侧，并且通过将铸模长边夹在铸模长边的背面上，并将其压印直流静磁场在板坯铸件整体宽度从下磁极，并重叠地施加直流静电场在板坯铸件pi 从上磁极的整体宽度和板坯铸件整体上的交流运动磁场，以及用于压制上磁极的直流静磁场的直流电磁体在铸件的宽度方向上分成四部分并且构成为使得从DC电磁体施加的磁通密度可以通过分开的各个DC电磁体独立地改变。

2. 发明专利

JP2014001456A Recovery method for iron and phosphorus from steel slag 有权
标题翻译：钢铁矿石和磷的回收方法
公开(公告)号：JP2014001456A
公开(公告)日：2014-01-09
申请号：JP2013146266
申请日：2013-07-12
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KIKUCHI NAOKI , MATSUI AKITOSHI , TAKAHASHI KATSUNORI , TOFUSA HIROYUKI , KISHIMOTO YASUO
IPC分类号： C21C5/28 , C01B25/26 , C21B5/00 , C21C1/02 , C22B1/16 , F27D15/00
CPC分类号： Y02P10/234
摘要： PROBLEM TO BE SOLVED: To provide a recovery method for iron and phosphorus from steel slag that can effectively and individually utilize the phosphorus and the iron recovered as resources while recovering the phosphorus and the iron from the steel slag at low costs when the steel slag containing the phosphorus such as dephosphorized slag is recycled.SOLUTION: A recovery method for iron and phosphorus from steel slag includes: a first step of causing phosphorus-containing steel slag to be subjected to a reduction treatment by using reducing agents such as carbon, Si and Al and reducing and recovering iron oxide and phosphorus oxide in the slag as phosphorus-containing molten iron; a second step of using the steel slag from which the iron oxide and the phosphorus oxide are removed as a CaO source in a sintering step and recycling sintered ore manufactured in a blast furnace; a third step of causing the phosphorus-containing molten iron recovered by the reduction treatment to be subjected to a dephosphorizing treatment until the phosphorus concentration in the phosphorus-containing molten iron becomes 0.1 mass% or less and condensing phosphorus in CaO-based flux; and a fourth step of mixing the phosphorus-containing molten iron having the phosphorus concentration of 0.1 mass% or less as an iron source with blast furnace molten iron.
摘要翻译：要解决的问题：提供钢渣中铁和磷的回收方法，可以有效和单独地利用作为资源回收的磷和铁，同时以低成本从钢渣中回收磷和铁，当含有脱磷渣等磷回收利用。解决方案：钢渣中铁和磷的回收方法包括：通过使用还原剂如碳，硅和含铁钢渣对含磷钢渣进行还原处理的第一步骤并在炉渣中还原和回收氧化铁和氧化磷作为含磷铁水; 在烧结步骤中使用除去氧化铁和氧化磷作为CaO源的钢渣的第二步骤，并且回收在高炉中制造的烧结矿; 将通过还原处理回收的含磷铁水进行脱磷处理直至含磷铁水中的磷浓度成为0.1质量％以下并在CaO类助熔剂中浓缩磷的第3工序; 以及将铁浓度为0.1质量％以下的含磷铁水与高炉铁水混合的第四工序。

3. 发明专利

JP2013189688A Method for removing sulfur from desulfurization slag 审中-公开
标题翻译：从脱硫槽中去除硫的方法
公开(公告)号：JP2013189688A
公开(公告)日：2013-09-26
申请号：JP2012057484
申请日：2012-03-14
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , KIKUCHI NAOKI , MIKI YUJI
IPC分类号： C21C1/02 , C04B5/00 , C21B5/00 , C22B1/16 , F27D7/06 , F27D17/00
CPC分类号： Y02P10/234
摘要： PROBLEM TO BE SOLVED: To efficiently remove sulfur contained in desulfurization slag, in order to utilize the desulfurization slag produced in the desulfurizing treatment of molten iron in a recycling manner.SOLUTION: This method for removing sulfur from desulfurization slag includes: a first step of heating the desulfurization slag in an atmosphere where an atmospheric temperature is in the range of 1,100 to 1,400°C and CO/COratio in the atmosphere is adjusted so that oxygen gas partial pressure (P) defined in formula (1): P=(P/P)×[1/exp(-ΔG/R×T)] lies in the range of 10to 10atm, and removing the sulfur in the desulfurization slag to the gas phase side of the atmosphere as SOx; a second step of applying a desulfurization treatment to exhaust gas containing the SOx removed to the gas phase side in the first process; and a third step of recycling the desulfurization slag in which the sulfur content is reduced by the first step as a CaO source in the pig iron making step or a steelmaking step.
摘要翻译：要解决的问题：为了有效地去除脱硫渣中所含的硫，以循环方式利用铁水脱硫处理中产生的脱硫渣。解决方案：从脱硫渣中除去硫的方法包括：第一步在气氛温度为1100〜1400℃的气氛中加热脱硫渣，调节气氛中的CO / CO比，使式（1）中定义的氧气分压（P）：P =（P / P）×[1 / exp（ - ＆Dgr; G / R×T）]在10〜10atm的范围内，并将脱硫渣中的硫作为SO x除去大气的气相侧; 对在第一工序中除去到气相侧的含有SOx的废气进行脱硫处理的第二工序; 以及第三步骤，在生铁步骤或炼钢步骤中，将作为CaO源的第一步硫含量减少的脱硫炉再循环。

4. 发明专利

JP2011080143A Method for producing molten pig iron 有权
标题翻译：生产铁皮的方法
公开(公告)号：JP2011080143A
公开(公告)日：2011-04-21
申请号：JP2010199645
申请日：2010-09-07
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KISHIMOTO YASUO , UCHIDA YUICHI , MATSUI AKITOSHI , SUZUKI TAKESHI
IPC分类号： C21B11/10 , C21C1/02 , C21C5/35
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a practical process for producing a pig iron which can be used for manufacturing various types of steel having high quality, while using a variety of iron scrap as an iron source.
SOLUTION: The method for producing molten pig iron includes the steps of: producing molten pig iron containing carbon by using the iron scrap as the iron source, in an arc furnace; mixing the molten pig iron with molten pig iron produced in a blast furnace; and desulfurizing the mixed molten pig iron. In this case, it is preferable to further dephosphorize the molten pig iron after the desulfurizing treatment, and to control the carbon concentration of the molten pig iron to be produced in the arc furnace to 1.5 mass% or more.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于生产生铁的实际方法，其可以用于制造具有高质量的各种钢，同时使用各种废铁作为铁源。解决方案：生产熔炼生铁的方法包括以下步骤：在电弧炉中使用废铁作为铁源生产含碳的生铁; 将熔融生铁与在高炉中生产的熔融生铁混合; 并将混合的生铁脱硫。在这种情况下，优选在脱硫处理后进一步对生铁进行脱磷，并且将在电弧炉中产生的生铁的碳浓度控制在1.5质量％以上。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010163651A Method for producing molten steel while using iron scrap as iron source 有权
标题翻译：使用铁屑作为铁源生产钢铁的方法
公开(公告)号：JP2010163651A
公开(公告)日：2010-07-29
申请号：JP2009006310
申请日：2009-01-15
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： UCHIDA YUICHI , MATSUI AKITOSHI , KISHIMOTO YASUO
IPC分类号： C21C1/04 , C21B11/02
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a method which does not need a large-scaled facility, can efficiently remove copper in an iron scrap with a little amount of a sulfur-containing flux, and finally produces molten steel containing little amount of both copper and sulfur, when producing the molten steel for a high-quality steel while using the copper-containing iron scrap as a main iron source, and removing copper in the iron scrap by using the sulfur-containing flux. SOLUTION: When producing molten steel while using the iron scrap as the iron source, the method for producing the molten steel includes the steps of: producing a molten pig iron for steelmaking by carburization-melting the iron scrap which has been shredded and subjected to magnetic concentration and/or gravity concentration after the shredding treatment: then removing copper contained in the molten pig iron by using the sulfur-containing flux; subsequently removing sulfur contained in the molten pig iron; and furthermore, decarburization-refining the molten pig iron from which sulfur has been removed. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供不需要大规模设备的方法，可以用少量含硫助焊剂有效地除去废铁中的铜，最后生产含少量当使用含铜铁废料作为主要铁源时，在生产用于高品质钢的钢水时，使用含硫助焊剂除去废铁中的铜，同时使用铜和硫。解决方案：在使用铁屑作为铁源时制造钢水时，钢水的制造方法包括以下步骤：通过对已经粉碎的铁屑进行渗碳熔融来生产炼钢用熔融生铁，在粉碎处理后经受磁性浓度和/或重力浓度：然后通过使用含硫助焊剂去除熔融生铁中所含的铜; 随后除去熔融生铁中所含的硫; 此外，对去除了硫的熔融生铁进行脱碳精炼。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009203538A Method for refining molten pig iron 有权
标题翻译：精炼铁皮的方法
公开(公告)号：JP2009203538A
公开(公告)日：2009-09-10
申请号：JP2008049020
申请日：2008-02-29
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , KAWABATA RYO , AKABOSHI YOSHIAKI
IPC分类号： C21C1/02 , C21C1/04
摘要： PROBLEM TO BE SOLVED: To provide a method for desiliconizing or dephosphorizing a molten pig iron with the use of a container having a small free board such as a hot-metal ladle and a torpedo car, while inhibiting an outburst of slag, shortening the treatment period of time, and enhancing the productivity even without arranging a cylindrical body for securing the free board. SOLUTION: This method for refining the molten pig iron includes: top-blowing and supplying a gaseous oxygen source from one supply system provided on a top-blow lance 7; at the same time, top-blowing and supplying at least one part of a solid oxygen source 4 from another supply system provided on the top-blow lance, onto the same place as a place to which the gaseous oxygen source has been supplied or the surface of a molten pig iron bath in the vicinity of the place, by using a carrier gas; and controlling the respective amounts of the oxygen sources to be supplied so that a ratio V/F O2 (kg/Nm 3 ) of a supply rate of the gaseous oxygen source F O2 (Nm 3 /min×t) to a supply rate of the solid oxygen source V (kg/min×t) is in a range of 0.60 to 6.0, when desiliconizing or dephosphorizing the molten pig iron 2 housed in the hot-metal ladle 5 or the torpedo car by adding the oxygen source and a CaO-based flux 3 to the molten pig iron. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了提供使用具有小型自由板的容器如铁水包和鱼雷车对熔融生铁进行脱硅或脱磷的方法，同时抑制炉渣的爆发，缩短处理时间，并且即使不设置用于固定自由板的圆柱体也可提高生产率。解决方案：用于精炼生铁的方法包括：从设置在顶吹喷枪7上的一个供应系统顶吹和供应气态氧源; 同时，将设置在顶吹喷枪上的另一供给系统的固体氧源4的至少一部分顶吹并供给到与供给气态氧源的位置相同的位置，通过使用载气在该地方附近的熔融生铁浴表面; 并且控制供给的氧源的相应量，使得气态氧源F的供给速率的比率V / F O2 （kg / Nm 3 / SP>）固体氧源V的供给速度（kg / min×t）为0.60〜6.0的范围内，当< 通过向熔融生铁中加入氧源和CaO类助熔剂3，使容纳在铁水包5或鱼雷车中的熔融生铁2脱硅或脱磷。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2015038250A 製鋼スラグからの鉄及び燐の回収方法有权
标题翻译：从钢铁渣中回收铁和磷的方法
公开(公告)号：JP2015038250A
公开(公告)日：2015-02-26
申请号：JP2014197989
申请日：2014-09-29
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： KIKUCHI NAOKI , MATSUI AKITOSHI , TAKAHASHI KATSUNORI , TOFUSA HIROYUKI , KISHIMOTO YASUO
IPC分类号： C21C5/28 , C21C1/02 , F27D15/00
CPC分类号： Y02P10/234
摘要：【課題】脱燐スラグなどの燐を含有する製鋼スラグのリサイクルにあたり、該製鋼スラグから燐及び鉄を安価に回収するとともに、回収した燐及び鉄を資源として有効活用することのできる、製鋼スラグからの鉄及び燐の回収方法を提供する。【解決手段】本発明の製鋼スラグからの鉄及び燐の回収方法は、燐を含有する製鋼スラグを炭素、Si、Alなど還元剤を用いて還元処理して(但し、鉄鋼溶湯存在下で還元処理する場合を除く)、製鋼スラグ中の鉄酸化物及び燐酸化物を還元し、前記燐酸化物が還元されて生成した燐を、前記鉄酸化物が還元されて生成した鉄に溶解させて、燐濃度が0.5質量%以上の溶融状態の燐含有溶融鉄として回収する工程と、前記燐含有溶融鉄を、フッ素を含有しないCaO系フラックスを用いて、燐含有溶融鉄中の燐濃度が0.1質量%以下となるまで脱燐処理し、CaO系フラックス中に燐をP2O5として20質量%以上濃縮させる工程と、を有する。【選択図】なし
摘要翻译：要解决的问题：提供一种回收铁和磷的方法，其能够在回收含磷炼钢渣中，从炼钢炉渣中低成本回收磷和铁。脱磷渣，利用回收的磷铁作为资源。解决方案：从炼钢渣中回收铁和铁的方法包括用还原剂（如还原剂）还原含磷炼钢渣的步骤。碳，Si或Al，不包括在钢水存在下的还原处理，以还原炼钢炉渣中的氧化铁和磷氧化物，将由磷氧化物还原产生的磷溶解在铁还原产生的铁中氧化物以回收熔融状态的磷浓度为0.5质量％以上的含磷铁水，以及通过使用无氟CaO系助熔剂对含磷铁水进行脱磷处理的工序含磷铁水中的磷的浓度为0.1质量％以下，从而使磷在CaO系焊剂中浓度为浓度为20质量％以上。

8. 发明专利

JP2014213327A 鋼の連続鋳造方法有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2014213327A
公开(公告)日：2014-11-17
申请号：JP2013089788
申请日：2013-04-22
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： MATSUI AKITOSHI , MURAI TAKESHI , ARAMAKI NORICHIKA , MIKI YUJI
IPC分类号： B22D11/115 , B22D11/10 , B22D11/18
CPC分类号： B22D11/10 , B22D11/11 , B22D11/18
摘要：【課題】複雑な電磁流動制御装置を用いることなく、欠陥が少ない高品質のスラブを製造することができ、しかも広幅のスラブを含む多様な鋳造幅のスラブの製造に適用できる鋼の連続鋳造方法を提供する。【解決手段】鋳型外側に、鋳型長辺部を挟んで対向し且つ鋳型上下方向においてメニスカス近傍に位置する1対の磁極を備えた連続鋳造機を用い、磁極に交流磁界を印加して溶鋼に水平方向の旋回撹拌を与えつつ、鋼の連続鋳造を行う方法であり、溶鋼吐出孔の水平方向から下向きの溶鋼吐出角度が15〜45?の浸漬ノズルを用い、スループットを2〜6Ton/minとし、スラブの鋳造幅W(mm)に応じて、磁極に印加する交流磁界の強度A(Gauss)を、370?Ln(W)−2500≦A≦370?Ln(W)−2050 の範囲に制御する。【選択図】図1
摘要翻译：要解决的问题：提供一种能够制造用于减少缺陷的高质量板坯的钢的连续铸造方法，并且还可用于制造包括宽板坯的各种铸造宽度的板坯，而不使用复杂的电磁流量控制装置解决方案：该方法用于通过使用具有与铸件相对的一对磁极的连续铸造机，通过在磁极上施加交流磁场而在钢水中连续铸造水平方向上的转动搅拌通过夹持铸模长边部并且在铸模垂直方向上位于弯液面附近来模制外部，并且施加在磁极上的交流磁场的强度A（Gauss）被控制在370×Ln的范围内（W）-2500≤A≤370×Ln（W）-2050，通过使用15t的浸渍喷嘴，将生产量为2〜6Torr / mm的板坯的铸造宽度W（mm）在从钢水排出孔的水平方向向下的熔融金属排出角度为45°。

9. 发明专利

JP2013060659A Method for decarburizing and refining molten iron in converter 有权
标题翻译：用于在转换器中去碳化和精炼铁的方法
公开(公告)号：JP2013060659A
公开(公告)日：2013-04-04
申请号：JP2012182974
申请日：2012-08-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OGASAWARA YASUSHI , KIKUCHI NAOKI , MATSUI AKITOSHI , IDO HIROHARU , IWAKI YOZO , KIKUCHI MASAMICHI , KOBAYASHI TAISUKE , KIYAMA TAKUYA
IPC分类号： C21C5/30 , C21C5/35
摘要： PROBLEM TO BE SOLVED: To stabilize the phosphorus concentration in molten iron when finishing decarburization and refining of the molten iron in a converter without excessively supplying an oxygen gas and prolonging the time required for decarburization and refining.SOLUTION: In the decarburization and refining of the molten iron 16 in the converter 1, the FeO concentration in a slag is estimated on the basis of the unknown oxygen amount obtained from an oxygen balance. According to the transition of the estimated FeO concentration, one or more of the oxygen gas flow rate from a top blowing lance, height of the top-blowing lance 2 and the flow rate of an agitation gas from a bottom-blowing tuyere 3 are controlled. Thus, the FeO concentration in the slag at the time when supplying 40 vol% of the whole oxygen gas amount is controlled to be 1.0-3.0 times of the FeO concentration calculated as a target value from the target phosphorus concentration and target temperature or the like when finishing decarburization and refining. After that, the temperature of the molten iron is measured by putting a sub-lance in the molten iron at the time when a carbon concentration in the molten iron becomes a prescribed value, and a subsequent oxygen gas supply amount is decided by comparing the measured value of the molten iron temperature with the target value thereof at end point.
摘要翻译：要解决的问题：在转炉中完成铁水的脱碳和精炼而不过度供应氧气并延长脱碳和精炼所需的时间时，稳定铁水中的磷浓度。解决方案：在转炉1中的铁水16的脱碳和精炼中，炉渣中的FeO浓度基于从氧平衡获得的未知氧量估计。根据估计的FeO浓度的转变，控制顶吹喷枪的氧气流量，顶吹喷枪2的高度和来自底吹风口3的搅拌气体的流量的一种或多种，。因此，将供给全部氧气量的40体积％时的炉渣中的FeO浓度控制为从目标磷浓度和目标温度等算出的作为目标值的FeO浓度的1.0-3.0倍完成脱碳和精炼时。之后，铁水的温度在铁水中的碳浓度成为规定值时，通过在铁水中放置亚枪，测定铁水的温度，通过比较测定的铁铁水温度的值，其目标值在终点。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2012072018A Method for separating phosphorus 有权
标题翻译：分离磷的方法
公开(公告)号：JP2012072018A
公开(公告)日：2012-04-12
申请号：JP2010218310
申请日：2010-09-29
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAO YASUKO , TAKAHASHI KATSUNORI , KIKUCHI NAOKI , MATSUI AKITOSHI
IPC分类号： C01B25/22 , B01D11/02 , B09B3/00 , C02F1/64 , C04B5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for separating and recovering phosphorus from a compound oxide derived from steelmaking slag or a CaO-based flux component in which phosphorus is concentrated.SOLUTION: The method for separating phosphorus is characterized in that the compound oxide containing, by mass%, ≥10% of CaO, ≥5% of total Fe and ≥10% of POis brought into contact with an organic acid solution or an organic acid salt solution, whereby phosphorus in the compound oxide is extracted into the solution, and dissolved iron and manganese are precipitated and separated as complexes with the organic acid or organic acid salt.

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