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    • 1. 发明专利
    • Method for producing molten iron
    • 生产铁的方法
    • JP2009256794A
    • 2009-11-05
    • JP2009074740
    • 2009-03-25
    • Kobe Steel Ltd株式会社神戸製鋼所
    • TATEISHI MASATAKASUGIDACHI HIROSHIFUJIMOTO HIDEAKI
    • C21B11/00
    • C21C5/35
    • PROBLEM TO BE SOLVED: To provide a molten iron production method capable of stably improving the productivity of the molten iron in its production using an iron bath type melting furnace while preventing troubles such as solidification of the molten iron and slag caused by temperature degradation when tapping them.
      SOLUTION: The method includes a melting step in which the iron source B as a raw material, a carbon material C and a slag-making material D are charged into the melting furnace 1 while blowing an inert gas A through a bottom-blown tuyere 7 to stir the molten metal, and an oxygen-containing gas E is top-blown through the top-blown lance 5, whereby the iron source B is melted by combustion heat generated by burning the carbon material C and the carbon in the molten iron to produce the molten iron and slag. The melting step comprises at least one step of tapping the molten iron and slag from a tap hole 9 in such a state that the melting furnace 1 retains a posture taken in the production of the molten iron. In the step of tapping the molten iron and slag, the production of the molten iron is continued or interrupted, and the top blowing of the oxygen-containing gas E is continued to maintain the molten iron temperature in the furnace at a preset lowest level or above.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种铁水生产方法,其能够在使用铁浴式熔融炉的生产中稳定提高铁水的生产率,同时防止由于温度导致的铁水和炉渣凝固等问题 点击时退化 解决方案:该方法包括熔融步骤,其中将作为原料的铁源B,碳材料C和炼渣材料D装入熔化炉1中,同时通过底部吹送惰性气体A, 吹风口7搅拌熔融金属,并且通过顶吹喷枪5顶吹含氧气体E,由此通过燃烧碳材料C和碳中的碳产生的燃烧热量使铁源B熔化 铁水产生铁水和铁渣。 熔融步骤包括在熔融炉1保持在生产铁水中所采取的姿势的状态下,从出钢孔9中分出铁水和炉渣的至少一个步骤。 在对铁水和炉渣进行攻丝的步骤中,继续或中断铁水的生产,并且继续顶吹含氧气体E,以将炉内的铁水温度维持在预设的最低水平,或 以上。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Production method for reduced iron
    • 减少铁的生产方法
    • JP2012107271A
    • 2012-06-07
    • JP2010255364
    • 2010-11-15
    • Kobe Steel Ltd株式会社神戸製鋼所
    • SUGIYAMA TAKESHITATEISHI MASATAKAHARADA TAKAOYOSHIDA SHOHEI
    • C21B13/08C22B1/243
    • C21B13/0046C21B13/008C21B13/105
    • PROBLEM TO BE SOLVED: To provide a technology capable of producing reduced iron having a per-piece crushing load of ≥80 kgf.SOLUTION: In this method for producing reduced iron, when heating an agglomerate containing an iron oxide-containing substance and a carbonaceous reducing agent and producing reduced iron by reducing the iron oxide in the agglomerate, the agglomerate is heated in the first stage so that the metallization ratio becomes 60-95% in each heating temperature range described below in (a)-(d), determined based on the basicity (CaO/SiOratio) of the agglomerate, and the agglomerate is subsequently heated in the second stage at 1,300-1,400°C as long as 5-18 minutes: (a) in the case of CaO/SiO
    • 要解决的问题:提供能够生产具有≥80kgf的每件破碎载荷的还原铁的技术。 解决方案:在制造还原铁的方法中,当加热含有含铁氧化物的物质和碳质还原剂的附聚物并通过还原附聚物中的氧化铁制备还原铁时,在第一阶段加热附聚物 使得在(a) - (d)中所述的每个加热温度范围内,基于碱度(CaO / SiO 2 比)确定的金属化率为60-95% 的附聚物,然后在第二阶段中在1300-1400℃下长达5-18分钟加热附聚物:(a)在CaO / SiO 2 0.93,加热温度范围为0.093℃,(b)在0.93≤CaO/ SiO 2 <1.07的情况下,加热温度范围为≤1223° C,(c)在1.07≤CaO/ SiO 2 <1.87的情况下,加热温度范围为≤230℃,(d)在1.87≤ CaO / SiO 2 ,加热温度范围<1,300 C。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Method for suppressing slag-forming in continuous melting furnace
    • 在连续熔融炉中抑制成型渣的方法
    • JP2009041043A
    • 2009-02-26
    • JP2007204444
    • 2007-08-06
    • Kobe Steel Ltd株式会社神戸製鋼所
    • TATEISHI MASATAKA
    • C21B11/08C21B13/14F27B3/28F27D19/00
    • F27B3/19C21C5/567C21C2005/5288C21C2300/04C22B7/04C22B9/10F27D3/14F27D3/1509F27D3/159Y02P10/216
    • PROBLEM TO BE SOLVED: To provide a method for suppressing slag-forming in a continuous melting furnace with which the molten metal can continuously be produced under stable state by surely suppressing the slag-forming while grasping the slag-forming state in the continuous melting furnace. SOLUTION: In the method for suppressing the slag-forming in the continuous melting furnace, in which the molten metal, such as molten iron, is continuously produced by melting a solid reducing metal; the flowing rate of flue gas discharged from the continuous melting furnace during blowing is measured over time and when the flowing rate of the flue gas in the state of increasing tendency, the charging speed of a suppressor for suppressing the slag-forming, is made to be high, and when the flowing rate of the flue gas is in the state of decreasing tendency, the charging speed of the above suppressor, is made to be low. COPYRIGHT: (C)2009,JPO&INPIT
    • 待解决的问题:提供一种在连续熔融炉中抑制熔渣形成的方法,通过在保持炉渣形成状态的同时抓住炉渣形成状态,可以在稳定的状态下连续地制造熔融金属 连续熔炼炉 解决方案:在通过熔融固体还原金属连续生产熔融金属(例如铁水)的连续熔炉中抑制炉渣形成的方法中, 随着时间的推移,测量从连续熔炼炉排出的烟道气的流动速度,并且当处于增加趋势的状态下的烟道气的流量时,将用于抑制成渣的抑制剂的装料速度设定为 高,并且当烟道气的流量处于降低趋势的状态时,使上述抑制器的充电速度变低。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Melting furnace and molten metal producing method using it
    • 熔化炉和金属生产方法
    • JP2007232273A
    • 2007-09-13
    • JP2006054523
    • 2006-03-01
    • Kobe Steel Ltd株式会社神戸製鋼所
    • TATEISHI MASATAKA
    • F27B3/28F27B3/19F27D3/14F27D19/00
    • F27B3/28F27B3/19F27D3/14F27D19/00F27D21/0028
    • PROBLEM TO BE SOLVED: To provide a melting furnace and a molten metal producing method using it providing easy and positive grasping and maintaining of a slag level in the furnace, in regard to a melting furnace melting solid reduced metal such as solid reduced iron and producing molten metal such as molten iron.
      SOLUTION: A batch type residue discharge port 9 is periodically opened and closed, and when doing so, a furnace internal pressure variation and/or an exhaust gas temperature variation are detected. If the furnace internal pressure variation and/or the exhaust gas temperature variation come below predetermined set values, the batch type residue discharge port 9 is opened for a predetermined time and slag S is discharged from a melting furnace body 1 to lower the slag level SL in the melting furnace body 1. On the other hand, if the furnace internal pressure variation and/or the exhaust gas temperature variation is the set value or more, control is carried out to maintain the slag level SL in the melting furnace body 1 by closing the batch type residue discharge port 9 for a predetermined time and maintaining or raising the slag level SL in the melting furnace body 1.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供使用熔融炉和熔融金属制造方法,其提供容易且积极地把持和保持炉中的炉渣水平,关于熔化炉熔化固体还原金属如固体还原 铁和生产熔融金属如铁水。 解决方案:批量式残渣排出口9周期性地打开和关闭,当这样做时,检测炉内部压力变化和/或废气温度变化。 如果炉内压变化和/或排气温度变化低于预定设定值,则批式残渣排出口9打开预定时间,并且从熔炉体1排出炉渣S以降低炉渣水平SL 另一方面,如果炉内压力变化和/或排气温度变化为设定值以上,则进行控制,以使熔渣炉体1中的渣量SL维持在熔炉体1内 关闭批式残渣排放口9一段预定的时间,并维持或提高熔炉炉体1中的渣量SL。版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Raw material agglomerate for producing reduced iron
    • 原材料生产减少铁的原料
    • JP2013014791A
    • 2013-01-24
    • JP2011146546
    • 2011-06-30
    • Kobe Steel Ltd株式会社神戸製鋼所
    • TATEISHI MASATAKA
    • C21B13/10C22B1/16C22B1/24
    • PROBLEM TO BE SOLVED: To provide a raw material agglomerate for producing reduced iron, which can be effectively used as a heat source by burning combustible gas contained in volatile matter generated from an agglomerate in a furnace when producing reduced iron by heating a carbonaceous material containing a volatile substance and the agglomerate containing an iron oxide-containing material in a rotary hearth furnace.SOLUTION: The raw material agglomerate used for producing the reduced iron by heating in the rotary hearth furnace is composed of a core part and an outer layer part for covering the core part. The core part contains the volatile substance-containing carbonaceous material and the outer layer part contains the iron oxide-containing material. Mass of the volatile substance contained in the outer layer part is smaller than the mass of the volatile substance contained in the core part.
    • 要解决的问题:提供一种用于制造还原铁的原料团块,其可以通过在通过加热生产还原铁的同时燃烧由炉中的附聚物产生的挥发性物质中包含的可燃气体而被有效地用作热源 含有挥发性物质的碳质材料和在转底炉中含有含氧化铁的材料的附聚物。 解决方案:用于通过在转底炉中加热制造还原铁的原料团聚体由用于覆盖芯部的芯部和外层部构成。 核心部分含有挥发性物质的含碳材料,外层部分含有含氧化铁的材料。 包含在外层部分中的挥发性物质的质量小于包含在芯部分中的挥发性物质的质量。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Exhaust gas treatment facility and dust recovery method by exhaust gas treatment facility
    • 排气处理设备的排气设备和除尘方法
    • JP2010019525A
    • 2010-01-28
    • JP2008182908
    • 2008-07-14
    • Kobe Steel Ltd株式会社神戸製鋼所
    • TATEISHI MASATAKA
    • F27D17/00B01D50/00C21C5/38F27B1/22F27B3/26
    • F27B3/26B01D46/0023B01D46/0035B01D46/02C21C5/40F27D17/004F27D17/008Y02P10/265Y02P10/283
    • PROBLEM TO BE SOLVED: To provide an exhaust gas treatment facility capable of facilitating effective use of dust by separating and recovering dust in exhaust gas discharged from a molten metal manufacturing furnace and of easily controlling furnace pressure of the molten metal manufacturing furnace and exhaust gas composition. SOLUTION: The exhaust gas treatment facility 1 is provided with an exhaust gas duct 2 which is communicated with a smoke stack 12 for discharging exhaust gas from an exhaust gas outlet 21 of the molten metal manufacturing furnace 20 discharging high-temperature exhaust gas including dust to the atmosphere after the dust is removed from the exhaust gas and in which a dust collecting means and a suction fan 5 are interposed. The dust collecting means comprises a wet type dust collector 3 interposed in the molten metal manufacturing furnace 20 side of the exhaust gas duct 2 and collecting coarse particle dust and a dry type dust collector 4 interposed in the suction fan 5 side of the wet type dust collector 3 and collecting fume type particulate dust. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种排气处理设备,其能够通过分离和回收从熔融金属制造炉排出的废气中的灰尘并且容易地控制熔融金属制造炉的炉压而有效地利用灰尘,以及 废气组成。 解决方案:废气处理设备1设置有排气管道2,排气管道2与用于从排出高温废气的熔融金属制造炉20的废气出口21排出废气的烟囱12连通 在从废气中除去灰尘并且其中插入有灰尘收集装置和吸入风扇5的情况下,包括灰尘到大气中。 集尘装置包括插入在废气管道2的熔融金属制造炉20侧的湿式集尘器3,并收集粗粉尘和插入湿式粉尘的吸入风扇5侧的干式集尘器4 收集器3和收集烟雾型颗粒尘埃。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Method for producing molten iron by heating with arc
    • 用ARC加热生产铁的方法
    • JP2009074120A
    • 2009-04-09
    • JP2007242651
    • 2007-09-19
    • Kobe Steel Ltd株式会社神戸製鋼所
    • FUJIMOTO HIDEAKIMIMURA TAKESHIMIYAHARA ITSUOHARADA TAKAOTATEISHI MASATAKASUGIDACHI HIROSHI
    • C21B11/10C21C5/54F27B3/08
    • F27B3/08C21B11/10C21B13/004C21B13/008C21C7/0025C21C7/0087C21C7/072C21C2007/0062Y02P10/136
    • PROBLEM TO BE SOLVED: To provide a method for inexpensively and stably producing molten iron with superior productivity by heating and melting solid reduced iron with an arc while using an arc-heating type melting furnace, which does not cause a slag-forming phenomenon in the furnace, and can surely discharge the slag produced in a melting operation without tilting the furnace. SOLUTION: The method for producing the molten iron comprises the steps of: adjusting the amount of the carbonaceous material (C) to be charged into the arc-heating type melting furnace 1 provided with a bottom-blow stirring function to form a carbonaceous-material-suspended slag layer 13 in the upper layer of a molten slag layer 12 that has been formed on a molten iron layer 11, by suspending a part of the carbonaceous material (C) in the upper layer; further forming a carbonaceous-material covering layer 14 formed of only the carbonaceous material (C), on the upper side of the carbonaceous-material-suspended slag layer 13; storing the molten iron and molten slag for one tap; and discharging the molten iron and the molten slag for the one tap from a tap hole 10. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种通过在使用电弧加热型熔融炉的同时使用电弧加热和熔化固体还原铁,以优异的生产率廉价且稳定地生产铁水的方法,其不引起成渣 在炉中发生现象,并且可以在不使炉子倾斜的情况下,在熔化操作中产生的炉渣放出。 钢铁的制造方法包括以下步骤:调整装入具有底吹搅拌功能的电弧加热式熔融炉1中的含碳材料(C)的量,以形成 通过将一部分碳质材料(C)悬浮在上层中,形成在铁水层11上的熔渣层12的上层中的碳质材料悬浮渣层13; 在含碳材料悬浮的渣层13的上侧进一步形成仅由碳质材料(C)形成的碳质材料覆盖层14; 储存铁水和熔渣一次; 并将铁水和一个水龙头的熔渣从出气孔10排出。版权所有(C)2009,JPO&INPIT