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公开(公告)号：US4065298A
公开(公告)日：1977-12-27
申请号：US643840
申请日：1975-12-23
IPC分类号： C21C5/32
CPC分类号： C21C5/32
摘要： In a steel making process with an oxygen top-blown converter when a certain inclining angle (.theta.) is given within a range of 0
摘要翻译： 在具有氧顶吹转炉的炼钢过程中，当在0°/ 15°的范围内给出一定的倾斜角（θ）至氧气喷枪的正常轴线的一个倾斜角度（θ）被支撑在 喷枪和一定数量的旋转（nu）在0
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公开(公告)号：US4102675A
公开(公告)日：1978-07-25
申请号：US814272
申请日：1977-07-11
申请人： Yoshio Miyashita , Akira Masui , Kenzo Yamada , Kenji Takahashi
发明人： Yoshio Miyashita , Akira Masui , Kenzo Yamada , Kenji Takahashi
CPC分类号： C21C5/36 , C21B3/06 , C21C2005/363 , Y02W30/543 , Y10S75/958
摘要： A method of regenerating molten slag remaining in a furnace or converter or the like after tapping of steel, by adding solid carbon and flux to the slag, blowing oxygen into the slag, heating to a temperature of more than 1500.degree. C and agitating. The regenerated slag can be controlled in composition to be most suitable for such ultimate uses as lime, cement, etc.
摘要翻译： 通过向炉渣中加入固体碳和助熔剂，向炉渣中添加固体碳和助熔剂，将炉内的氧气吹入炉中，加热至1500℃以上并进行搅拌，从而在熔炼炉或转炉等中残渣的熔渣再生。 再生炉渣的成分可以控制在最适合石灰，水泥等最终用途。
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公开(公告)号：US4988079A
公开(公告)日：1991-01-29
申请号：US503805
申请日：1990-04-03
申请人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Ichiro Kikuchi
发明人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Ichiro Kikuchi
CPC分类号： C21B13/14 , C21B13/0006 , C21C5/305 , Y02P10/136 , Y02P10/265 , Y02P10/283 , Y10S75/958
摘要： An apparatus for smelting reduction comprising a preheat and prereduction furnace for preheating and prereducing iron ores; a smelting reduction furnace into which iron ores, carbonaceous material and fluxing material are charged and in which the iron ores are smelted and reduced; a top-blow oxygen lance through which oxygen gas is blown into the smelting reduction furnace, having decarbonizing nozzles and post combustion nozzles; and the smelting reduction furnace having bottom and side tuyeres built respectively in a side wall and a bottom thereof.
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公开(公告)号：US5065985A
公开(公告)日：1991-11-19
申请号：US520785
申请日：1990-05-08
申请人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Osamu Terada
发明人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Osamu Terada
CPC分类号： C21B13/143 , Y02P10/136
摘要： An apparatus for a smelting reduction of iron ore comprising a preheat and prereduction furnace which preheats and prereduces iron ore, a smelting reduction furance into which said preheated and prereduced iron ore, carbonaceous material and fluxes are charged and in which said preheated and prereduced iron ore are smelted and reduced, a top blow oxygen lance having decarburizing nozzles and post-combustion nozzles and blowing oxygen into said smelting reduction furance, and at least one side tuyere placed at a side wall of the smelting reduction furnace and at least one bottom tuyere placed at a bottom of the smelting reduction furnace through which a stirring gas is respectively blown so that at least a part of said stirring gas introduced through said at least one side tuyere hits a swollen portion of the molten metal by said stirring gas introduced through said at least one bottom tuyere.
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5.发明授权Method for controlling a flow rate of gas for prereducing ore and apparatus therefor 失效用于控制用于预处理及其装置的气体流量的方法
公开(公告)号：US5183495A
公开(公告)日：1993-02-02
申请号：US619759
申请日：1990-11-29
IPC分类号： C21B13/14
CPC分类号： C21B13/14
摘要： A method for controlling a flow rate of gas for prereducing ore comprises the steps of prereducing ore in a prereduction furnace having a fluidized bed with a gas generated in a smelting reduction furnace and controlling a pressure of gas generated in the smelting reduction furnace and introduced into the prereduction furnace, thereby controlling the actual flow rate of gas introduced into the prereduction furnace. An apparatus for controlling a flow rate of gas for prereducing ore comprises a flow passage for introducing gas generated in a smelting reduction furnace into a prereduction furnace and a gas pressure control valve positioned in the flow passage.
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公开(公告)号：US4792352A
公开(公告)日：1988-12-20
申请号：US45624
申请日：1987-05-01
申请人： Akichika Ozeki , Kenzo Yamada , Katsuhiro Iwasaki
发明人： Akichika Ozeki , Kenzo Yamada , Katsuhiro Iwasaki
CPC分类号： C21C5/35 , C21B13/0013 , Y02P10/136
摘要： A method for manufacturing molten steel wherein iron ore and coal are continuously supplied onto molten metal containing carbon of 1% or less while blowing oxygen gas is being introduced onto the molten metal through a lance. Simultaneously with this operation, stirring gas is being introduced into the molten metal at a rate of 0.05 to 0.5 Nm.sup.3 /min/ton of molten metal through a tuyere. The slag and the molten steel produced, is continuously or periodically discharged.
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公开(公告)号：US4936908A
公开(公告)日：1990-06-26
申请号：US246456
申请日：1988-09-19
申请人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Ichiro Kikuchi
发明人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Ichiro Kikuchi
CPC分类号： C21B13/14 , C21B13/0006 , C21C5/305 , Y02P10/136 , Y02P10/265 , Y02P10/283 , Y10S75/958
摘要： A method for smelting and reducing iron ores comprises the steps of: the step of preheating and prereducing iron ores; the step of charging the preheated and prereduced iron ores into a smelting reduction furnace; the step of charging carbonaceous material and fluxing material into the smelting reduction furnace; the step of blowing in oxygen gas into the smelting reduction furnace through a top-blow oxygen lance having decarbonizing nozzles and post combustion nozzles; and the step of blowing in stirring gas through side and bottom tuyeres set respectively in a side wall and a bottom of the smelting reduction furnace. Furthermore, an apparatus for smelting reduction fitted for the method comprising: a preheat and prereduction furnace preheating and prereducing iron ores; a smelting reduction furnace into which iron ores, carbonaceous material and fluxing material are charged and in which the iron ores are smelted and reduced; a top-blow oxygen lance through which oxygen gas is blown in into the smelting reduction furnace, having decarbonizing nozzles and post combustion nozzles; and the smelting reduction furnace having bottom and side tuyeres built respectively in a side wall and a bottom thereof.
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公开(公告)号：US5000784A
公开(公告)日：1991-03-19
申请号：US276612
申请日：1988-11-28
申请人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Osamu Terada
发明人： Kenji Takahashi , Katsuhiro Iwasaki , Shigeru Inoue , Haruyoshi Tanabe , Masahiro Kawakami , Kenzo Yamada , Osamu Terada
CPC分类号： C21B13/143 , Y02P10/136
摘要： A method for smelting reduction of iron ore comprises the steps of: preheating and prereducing iron ore; charging said preheated and prereduced iron ore, carbonaceous material and flux into a smelting reduction furnace; blowing oxygen gas through a top blow oxygen lance having decarburizing nozzles and post-combustion nozzles into said smelting reduction furnace, an end of said top blow oxygen lance being arranged between an upper side level of a slag layer and a lower side level of said slag layer; blowing a stirring gas through at least one side tuyere placed in side wall of said smelting furnace and at least one bottom tuyer placed in bottom wall of said reduction furnace so that at least part of said stirring gas introduced through at least one said side tuyere hits a swollen portion of the molten metal by said stirring gas introduced through at least one said bottom tuyere; and controlling a flow rate of said oxygen gas and said stirring gas blown in said smelting reduction furnace so that an OD of infurnace gas of said smelting furnace ranges 0.5 to 1.0, where said OD is represented by the following formula: OD=(H.sub.2 O+CO.sub.2 )/(H.sub.2 +H.sub.2 O+CO+CO.sub.2). And, further, an apparatus used in the above-mentioned method.
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9.发明授权Method for adjusting chemical composition of molten pig iron tapped from blast furnace 失效用于调整从高炉中抽取的生铁的化学成分的方法
公开(公告)号：US4601749A
公开(公告)日：1986-07-22
申请号：US776968
申请日：1985-09-04
申请人： Kenzo Yamada , Katsuhiro Iwasaki , Mitsuru Ohtsuki , Haruo Ito
发明人： Kenzo Yamada , Katsuhiro Iwasaki , Mitsuru Ohtsuki , Haruo Ito
摘要： At least one lance is substantially vertically arranged above a hot-metal runner of a blast furnace so that the lowermost end of the lance is spaced apart by a prescribed distance from the surface of molten pig iron flowing through the hot-metal runner. A granular chemical composition adjusting agent for adjusting the chemical composition of molten pig iron is blown, through the lance, into molten pig iron by means of a carrier gas to adjust the chemical composition of molten pig iron so as to satisfy the following two equations:0.5H.ltoreq.H.sub.p
摘要翻译： PCT No.PCT / JP85 / 00045 Sec。 371日期：1985年9月4日 102（e）1985年9月4日PCT PCT公布1985年2月4日PCT公布。 第WO85 / 03524号公报 日期：1985年8月15日。至少一个喷枪基本上垂直地布置在高炉的热金属流道上方，使得喷枪的最下端与流过熔融生铁的熔融生铁表面间隔规定的距离 热金属跑步者。 将用于调节生铁的化学成分的粒状化学成分调节剂通过喷枪通过载气吹入熔融生铁中，以调节生铁的化学成分，以满足以下两个方程： 0.5H
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