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1. 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。

2. 发明专利

JP2012031452A Method of dephosphorizing hot metal 审中-公开
标题翻译：脱氢高纯金属的方法
公开(公告)号：JP2012031452A
公开(公告)日：2012-02-16
申请号：JP2010170300
申请日：2010-07-29
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KIKUCHI NAOKI , DEN KEITA , TAKAHASHI YUKIO , OKUYAMA GORO , KISHIMOTO YASUO
IPC分类号： C21C1/02 , C21C5/35 , C21C5/46
摘要： PROBLEM TO BE SOLVED: To melt an added cold iron source in a period of a predetermined dephosphorization processing time in dephosphorizing hot metal by injecting a dephosphorization-refining agent to the hot metal while heating by a burner function.SOLUTION: In a dephosphorization processing method, while stirring gas 28 is blown from a bottom-blowing tuyere 7 and the hot metal 26 is stirred, a lime-based dephosphorization-refining agent 29 together with inert gas are injected to the hot metal from a center hole of a top-blowing lance 3. At the same time, fuel is supplied from a fuel injection hole arranged around the center hole, and oxygen gas is supplied from an oxygen gas injection hole for fuel combustion arranged around the fuel injection hole to form a flame. The dephosphorization-refining agent is heated by the flame. In addition, oxygen gas is supplied to the hot metal from more than three circumferential holes arranged on an outer side of the oxygen gas injection hole for fuel combustion to dephosphorize the hot metal with the cold iron source charged at a blend ratio of 5-30 mass%. A flow rate Q of the stirring gas is obtained by using the expression (1) depending on the blend ratio X of the cold iron source, and the stirring gas of more than an obtained gas flow rate is blown to dephosphorize. The expression (1) is Q=0.02×(X-5)+0.10.
摘要翻译：待解决的问题：通过在通过燃烧器功能加热的同时将脱磷精制剂注入到热金属中，在预定的脱磷处理时间的期间内对添加的冷铁源进行熔融，从而使热金属脱磷。解磷：在脱磷处理方法中，从底吹风口7吹入搅拌气体28并搅拌铁水26时，将石灰基脱磷精制剂29与惰性气体一起注入热金属从顶吹喷枪3的中心孔。同时，从设置在中心孔周围的燃料喷射孔供给燃料，并且从设置在燃料周围的燃料燃烧用氧气喷射孔供给氧气注射孔形成火焰。脱磷精炼剂被火焰加热。此外，氧气从设置在氧气注入孔的外侧的三个以上的周向孔供给到燃料燃烧中，以与铁水混合比为5-30的冷铁源进行脱磷质量％。通过根据冷铁源的混合比X使用表达式（1）获得搅拌气体的流量Q，并且吹送大于所获得的气体流量的搅拌气体以脱磷。式（1）为Q = 0.02×（X-5）+0.10。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011121115A Continuous casting method of steel 有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2011121115A
公开(公告)日：2011-06-23
申请号：JP2010049973
申请日：2010-03-07
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MIKI YUJI , KISHIMOTO YASUO
IPC分类号： B22D11/04 , B22D11/10 , B22D11/11 , B22D11/115 , B22D11/20 , B22D27/02
CPC分类号： B22D11/115
摘要： PROBLEM TO BE SOLVED: To provide a high quality slab having less foaming defects and flux-caused defects. SOLUTION: In the continuous casting method of steel, the steel is continuously cast by using a continuous casting machine, that is equipped with a pair of upper magnetic poles 3a, 3b and a pair of lower magnetic poles 4a, 4b oppositely facing along a long side of a casting die at the outer side of the casting die and having a molten steel discharging port 20 of a dipping nozzle located between the peak position of the DC magnetic field of the upper magnetic poles and the peak position of the DC magnetic field of the lower magnetic poles, and controlling the molten steel flow by a DC magnetic field impressed each to the pair of the upper magnetic poles and the pair of the lower magnetic poles while stirring the molten steel by an AC magnetic field impressed in a superimposed manner to the pair of the upper magnetic poles. In accordance with the width of a slab that is cast and casting speed, the intensity of the AC magnetic field impressed to the upper magnetic poles and the intensity of the DC magnetic field impressed to the upper magnetic poles and the lower magnetic poles are controlled to a specific range. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有较少发泡缺陷和通量引起缺陷的高品质板坯。解决方案：在钢的连续铸造方法中，使用连续铸造机连续铸造钢，该连续铸造机配备有一对上磁极3a，3b和一对相对的下磁极4a，4b 沿着铸模的外侧的铸模的长边，并且具有位于上磁极的直流磁场的峰值位置和直流电极的峰值位置之间的浸渍喷嘴的钢水排出口20 下磁极的磁场，并且通过施加在一对上磁极和一对下磁极中的直流磁场来控制钢水流，同时通过施加在叠加到一对上磁极上。根据铸造和铸造速度的板坯的宽度，施加到上磁极的交流磁场的强度和施加到上磁极和下磁极的直流磁场的强度被控制为一个特定的范围。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011117015A 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：JP2011117015A
公开(公告)日：2011-06-16
申请号：JP2009273323
申请日：2009-12-01
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： IWAASA MAKI , KIKUCHI NAOKI , OKUYAMA GORO , UCHIDA YUICHI , KISHIMOTO YASUO
IPC分类号： C21C1/02
摘要： PROBLEM TO BE SOLVED: To provide a method for desulfurizing molten pig iron, which efficiently adds a fine granular desulfurizing agent having excellent reactivity by suppressing scattering of the desulfurizing agent and at the same time efficiently decreases oxygen potential of the molten pig, thereby stably and efficiently desulfurizing the molten pig iron, in the desulfurization treatment of the molten pig iron by adding the desulfurizing agent from a top-blowing lance to the molten pig iron in a top-blowing manner, the molten pig iron being stirred with a mechanical stirring type desulfurizing apparatus. SOLUTION: In the method for desulfurizing the molten pig iron 3 by using the mechanical stirring type desulfurizing apparatus, the desulfurizing agent together with gas for conveyance are added from the end part of the top-blowing lance 5 having multi-tube structure to the bath surface of the molten pig iron in a top-blown manner, the molten pig iron being stirred with an impeller 4, and also one or two or more kinds of gases among reducing gas, inert gas and non-oxidizing gas, are simultaneously sprayed toward the bath surface of the molten pig iron from a section of the end part of the top-blowing lance 5 provided in the outer circumference of a section for top-blowing the desulfurizing agent, and thus the desulfurization treatment is performed. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于通过抑制脱硫剂的飞散有效地添加具有优异的反应性的细粒状脱硫剂，同时有效地降低熔融猪的氧气的脱硫生铁的方法，从而通过以顶吹方式将顶吹喷枪的脱硫剂以最高的吹送方式添加到熔融生铁中，在熔融生铁的脱硫处理中，使熔融生铁稳定有效地脱硫，将熔融生铁与机械式搅拌式脱硫装置。解决方案：在通过使用机械搅拌式脱硫装置对熔融生铁3进行脱硫的方法中，从具有多管结构的顶吹喷枪5的端部添加脱硫剂和输送气体以吹风方式向熔融生铁的浴表面喷射熔融生铁，同时用叶轮4搅拌，还原气体，惰性气体和非氧化气体中的一种或两种以上的气体分别为同时从设置在用于顶吹脱硫剂的部分的外周的顶吹喷枪5的端部的一部分向熔融生铁的浴表面喷射，从而进行脱硫处理。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010189670A Method for producing phosphate resource raw material 有权
标题翻译：生产磷酸盐资源原料的方法
公开(公告)号：JP2010189670A
公开(公告)日：2010-09-02
申请号：JP2009032265
申请日：2009-02-16
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , KIKUCHI NAOKI , TAKAHASHI KATSUNORI , TOFUSA HIROYUKI , KISHIMOTO YASUO
IPC分类号： C21C1/02 , C01B25/01 , C21C5/28 , C21C7/00
摘要： PROBLEM TO BE SOLVED: To provide a method for efficiently producing a phosphate resource raw material having high phosphorus content at a low cost by recovering and concentrating the phosphorus in a steel-making slag containing phosphorus.
SOLUTION: The steel-making slag containing the phosphorus, is reduced by using a reduction-agent containing one or more among carbon, silicon and aluminum, and thus, iron-oxide and phosphorus-oxide in the steel-making slag are reduced to obtain the phosphorus. To molten iron containing ≥0.5% phosphorus obtained like this, oxygen-source having ≥40 vol.% of the supplied oxygen-source, is supplied by blowing into the molten iron through a top-blowing lance as the oxygen gas and also, ≥40 mass% of the supplied lime-source expressed in term of pure CaO is together with a gas for trnsformation, and the dephosphorizing-treatment is applied by supplying the oxygen-source and the lime-source without using fluorine-source as slag-making promoting agent of the lime-source, and the phosphate concentration in the generated dephosphorus slag is concentrated to ≥10 mass% and thus, the dephosphorus slag is recovered to make the phosphate resource raw material.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：待解决的问题：提供一种通过在含磷的炼钢渣中回收和浓缩磷来有效地生产具有低磷含量的磷含量的磷酸盐原料的方法。解决方案：通过使用在碳，硅和铝中含有一种或多种的还原剂，含有磷的炼钢渣被还原，因此炼钢渣中的氧化铁和氧化磷为减少获得磷。对于这样获得的含有≥0.5％磷的铁水，供氧量≥40体积％的氧源通过作为氧气的顶吹喷枪吹入铁水中，并且≥ 以纯CaO表示的所供给的石灰源的40质量％与用于晶体形成的气体一起，通过不使用氟源作为制渣而供给氧源和石灰源来进行脱磷处理石灰源的促进剂，将生成的脱磷渣中的磷酸盐浓度浓缩至≥10质量％，从而回收脱磷渣，制成磷酸盐原料。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010163653A Method for producing molten iron using iron scrap as iron-source 有权
标题翻译：使用铁屑作为铁源生产铁的方法
公开(公告)号：JP2010163653A
公开(公告)日：2010-07-29
申请号：JP2009006465
申请日：2009-01-15
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , UCHIDA YUICHI , KISHIMOTO YASUO
IPC分类号： C21C1/04 , C21C1/02 , C22B7/00 , C22B9/10 , C22B9/16
CPC分类号： Y02P10/214 , Y02P10/22 , Y02P10/236
摘要： PROBLEM TO BE SOLVED: To efficiently remove copper in molten iron without needing a large-scaled facility when a high-class steel is produced by using the steel scraps as the iron-source and removing the copper in the molten iron due to the copper in steel scraps by using sulfur-contained flux and also, to efficiently remove the sulfur which is brought into the molten iron from the sulfur-containing flux by preventing the returning of the copper in the flux into the molten iron without discharging the sulfur-containing flux from a reaction vessel.
SOLUTION: In a method for producing the molten iron using the steel scraps as the iron-source, the sulfur-containing flux is added to the molten iron which is produced by carburize-melting of the copper-containing steel scraps and accommodated in the reaction vessel, and the copper in the molten iron is absorbed in this flux to remove the copper in the molten iron, and successively, CaO-containing material is added into this reaction vessel without discharging the flux containing the copper, and the sulfur-containing flux is solidified by thermal absorption due to this CaO-containing material. Thereafter, it is desirable that the desulfurization-processing is successively performed using the CaO-containing material as the desulfurizing agent.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了有效地除去铁水中的铜而不需要大规模的设备，当通过使用钢屑作为铁源生产高档钢，并且由于钢中的铜通过使用含硫助焊剂废弃，并且通过防止将助熔剂中的铜返回到铁水中而不排出硫而有效地除去从含硫助焊剂引入铁水中的硫来自反应容器的通量。解决方案：在使用钢屑作为铁源的铁水的制造方法中，将含硫助焊剂添加到通过含铜钢屑的渗碳熔融而制成的铁水中，在反应容器中，铁水中的铜被吸收在该助熔剂中以除去铁水中的铜，然后将含CaO的材料加入该反应容器中而不排出含有铜的焊剂，硫含量的助熔剂由于这种含CaO材料而被热吸收固化。此后，优选使用含CaO材料作为脱硫剂连续进行脱硫处理。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2012007190A Method for resource recovery from steelmaking slag, and raw material for phosphate fertilizer 有权
标题翻译：钢铁渣回收利用方法，磷酸盐肥料原料
公开(公告)号：JP2012007190A
公开(公告)日：2012-01-12
申请号：JP2010141137
申请日：2010-06-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , KIKUCHI NAOKI , KISHIMOTO YASUO , TOFUSA HIROYUKI , TAKAHASHI KATSUNORI , MIYATA YASUTO , YAO YASUKO
IPC分类号： C21C5/28 , B09B3/00 , C04B5/00 , C21B13/08 , C21C1/02 , F27D15/00
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To inexpensively recover metal iron from decarburization refining slag and preliminary dephosphorized slag which are produced in a steelmaking process and utilize the steelmaking slag as a civil engineering and construction material or an environmental improvement material, which do not cause volume expansion and clouding phenomenon of seawater, and further as raw materials for phosphate fertilizers.SOLUTION: In the method for resource recovery from steelmaking slag, decarburization refining slag produced in decarburization refining of molten iron in a converter and preliminary dephosphorized slag produced in preliminary dephosphorization treatment of molten iron are mixed such that a basicity (mass% of CaO/mass% of SiO) of the mixture after the mixing of the slag is 1.5-2.8, reduction treatment for the reduction of an iron oxide in the slag is subjected to the mixture using a reducing agent containing one or more selected from carbon, silicon and aluminum, and the slag after the reduction treatment is used as one or more of a civil engineering and construction material, an environmental improvement material and raw materials for phosphate fertilizers, while metal iron obtained through the reduction treatment is used as an iron source.
摘要翻译：要解决的问题：从炼钢过程中生产的脱碳精炼渣和预脱磷炉中廉价回收金属铁，并利用炼钢渣作为土木工程和建筑材料或环境改善材料，不会造成体积膨胀和海水混浊现象，进一步成为磷肥的原料。解决方案：在炼钢渣资源回收方法中，将转炉中铁水脱碳精炼产生的脱碳精炼渣和在铁水预脱磷处理中产生的预脱磷渣混合，使碱度（质量％炉渣混合后混合物的CaO / CaO /质量％SiO 2 ）为1.5〜2.8，对炉渣中的氧化铁还原处理进行了使用含有选自碳，硅和铝中的一种或多种的还原剂的混合物，还原处理后的渣用作土木工程和建筑材料，环境改善材料和磷酸盐肥料的原料中的一种或多种，而使用通过还原处理得到的金属铁作为铁源。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2011208277A Method for recovering iron and phosphorus from steelmaking slag and raw material for phosphatic fertilizer 有权
标题翻译：用于从钢铁渣和原料回收磷酸盐和磷的方法用于磷肥
公开(公告)号：JP2011208277A
公开(公告)日：2011-10-20
申请号：JP2011037978
申请日：2011-02-24
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUI AKITOSHI , KIKUCHI NAOKI , TAKAHASHI KATSUNORI , KISHIMOTO YASUO , YAO YASUKO
IPC分类号： C21C5/28 , C21C1/02 , C21C5/36
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To previously recover phosphorus from slag at a low cost and to effectively utilize the recovered phosphorus as resources, in recycling the steelmaking slag containing the phosphorus in a pig iron-making process and the steelmaking process.SOLUTION: A method for recovering iron and phosphorus from the steelmaking slag includes: a first process in which the steelmaking slag containing the phosphorus is reduction-treated to recover the high phosphorus and high manganese pig iron containing ≥0.5 mass% phosphorus; a second process in which the slag obtained by the reducing treatment is recycled in the pig iron-making process or the steelmaking process; a third process in which the high phosphorus and high manganese pig iron is treated for demanganization; a fourth process in which the slag generated by the demanganization treatment is discharged; a fifth process in which the dephosphorization treatment is performed to the molten pig iron in a treating vessel after discharging the slag; a sixth process in which molten iron to which dephosphorization treatment is performed so as to have the phosphorus concentration of ≤0.10 mass% in the molten pig iron in the fifth process is recycled in the steelmaking process; and a seventh process in which the slag generated in the dephosphorization treatment in the fifth process is recovered and used as a phosphoric acid resources raw material.
摘要翻译：要解决的问题：为了以低成本预先从炉渣中回收磷，有效利用回收的磷作为资源，在生铁工艺和炼钢工艺中循环利用含磷的炼钢渣。解决方案：从炼钢渣中回收铁和铁包括：第一种还原处理含有磷的炼钢渣，回收含磷含量≥0.5质量％的高磷和高锰铁; 通过还原处理获得的炉渣在生铁工艺或炼钢工艺中循环的第二工序; 第三种处理高锰矿和高锰矿生铁的过程，通过脱矿处理生成的炉渣排出的第四工序; 排出炉渣后在处理容器中对熔融生铁进行脱磷处理的第五工序; 在第五工序中，在熔融生铁中进行脱磷处理以使磷浓度≤0.10质量％的铁水在炼钢过程中回收的第六工序; 在第五工序中脱磷处理中生成的炉渣回收并用作磷酸原料的第七工序。

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

JP2011038176A Steel-making method with converter 有权
标题翻译：具有转换器的钢制方法
公开(公告)号：JP2011038176A
公开(公告)日：2011-02-24
申请号：JP2009188894
申请日：2009-08-18
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： UCHIDA YUICHI , KISHIMOTO YASUO , MAEDA TAKAHIKO , FURUYA MASAYUKI , IGARASHI YUMA
IPC分类号： C21C5/30 , C21C5/46
摘要： PROBLEM TO BE SOLVED: To provide a steel-making method with a converter, being profitabler than the conventional proposal with which in the case of refining molten steel by simultaneously performing a decarburizing-refining and dephosphorizing-refining to molten iron in the converter, the dephosphorizing-refining can be performed in the dephosphorizing efficiency at the same grade as the ordinal method with the less amount of a refining agent for dephosphorizing.
SOLUTION: In the steel-making method with the converter, with which the dephosphorizing agent mainly containing CaO is added while performing the carburizing refining to the molten iron by supplying gaseous oxygen source and solid oxygen source, as the oxygen source into the converter and this dephosphorizing agent is made into slag and the dephosphorizing-refining is applied to the molten iron at the same time of the decarburizing-refining, and molten steel is obtained from the molten iron; the gaseous oxygen source is supplied onto the molten iron surface from one of supplying system, and the solid oxygen source from the other one of supplying system is supplied onto the molten iron surface near the position supplying the gaseous oxygen source by using a gas for conveying.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有转炉的炼钢方法，比在通过同时进行脱碳精炼和脱磷精炼到钢水中的钢水精炼的情况下的常规方案更有利可图转化器中，脱磷精炼可以以与较少量的脱磷精制剂相同的次序进行脱磷效率。＆lt;解决方案＆gt;在使用转化器的炼钢方法中，通过向主要含CaO的脱磷剂进行渗碳精炼，通过供给气态氧源和固体氧源作为氧源进入渗碳精炼将该脱磷剂制成渣，在脱碳精炼的同时将脱磷精炼施加到铁水，由铁水获得钢水; 气体氧源从供给系统中的一个供给到铁水表面，来自供给系统的另一个的固体氧源通过使用输送气体供给到供给气体氧源的位置附近的铁水表面。版权所有（C）2011，JPO＆INPIT

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