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公开(公告)号：US4389246A
公开(公告)日：1983-06-21
申请号：US290587
申请日：1981-08-06
CPC分类号： C10J3/57 , C10J3/08 , C10J3/74 , C10J2200/152 , C10J2300/0906 , C10J2300/093 , C10J2300/0943 , C10J2300/0946 , C10J2300/0956 , C10J2300/0959 , C10J2300/0969 , C10J2300/0976 , C21C2250/02 , Y10S75/958
摘要： In a process for the gasification of solid carbonaceous material such as coal, powdered coal is top-blown onto a molten iron bath stored in a furnace through a non-submerged lance toward a hot spot formed by means of a jet of oxygen and steam top-blown through a non-submerged lance, coal being blown by means of a carrier gas, and flux is optionally added into the furnace by the lump or blown toward the hot spot, thereby the coal being gasified. The ratio L/L.sub.o of the depression depth L of the molten iron bath to the molten iron bath depth L.sub.o is maintained from 0.05 to 0.15, and the blowing velocity of the solid carbonaceous material is maintained from 50 to 300 m/sec so as to suppress the forming of an adhered mass in the furnace. A stirring gas is blown through a bottom nozzle to stir the molten iron bath.
摘要翻译： 在煤等固体碳质材料气化的过程中，将粉煤通过非浸没式喷枪向存储在炉中的铁水浴顶吹到通过氧气和蒸汽顶部形成的热点 通过非浸没式喷枪吹入，煤通过载气吹送，并且任选地通过块将助熔剂加入到炉中或者吹向热点，从而使煤气化。 铁水槽的凹陷深度L与铁水浴深度Lo的比L / Lo保持在0.05〜0.15，固体碳质材料的吹入速度保持在50〜300m /秒， 抑制在炉中形成附着物。 将搅拌的气体吹过底部喷嘴以搅拌铁水浴。
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公开(公告)号：US4456477A
公开(公告)日：1984-06-26
申请号：US498863
申请日：1983-05-27
申请人： Seiichi Masuda , Tohru Matsuo , Yoshimichi Ohkita , Takeo Aoki , Hidemasa Nakajima , Shozo Okamura , Takeyuki Hirata , Shoji Anezaki
发明人： Seiichi Masuda , Tohru Matsuo , Yoshimichi Ohkita , Takeo Aoki , Hidemasa Nakajima , Shozo Okamura , Takeyuki Hirata , Shoji Anezaki
摘要： A process for producing an ultra-low phosphorus steel containing 0.010% or less of phosphorus is disclosed, which comprises charging a desiliconized pig iron into a top- and bottom-blowing oxygen converter, introducing a slag-forming agent in a powdered form onto the molten iron together with the top-blowing oxygen and introducing a bottom-blowing gas selected from the group consisting of an inert gas, nitrogen gas, oxygen gas, carbon monoxide gas, carbon dioxide gas and mixtures thereof during the oxygen top-blowing or during both the oxygen top-blowing and the subsequent tapping.
摘要翻译： 公开了一种含有0.010％以下的磷的超低磷钢的制造方法，其特征在于，将脱硅生铁装入上下吹氧转化器中，将粉末形成剂引入到 熔融铁与顶吹氧气一起引入，并且在氧气吹制期间或在氧气吹入期间引入选自惰性气体，氮气，氧气，一氧化碳气体，二氧化碳气体及其混合物的底吹气体 氧气顶吹和随后的攻丝。
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公开(公告)号：US4328030A
公开(公告)日：1982-05-04
申请号：US148531
申请日：1980-05-09
申请人： Yasuyuki Tozaki , Minoru Ueda , Takeyuki Hirata , Syoji Anezaki
发明人： Yasuyuki Tozaki , Minoru Ueda , Takeyuki Hirata , Syoji Anezaki
CPC分类号： C21C5/35 , C21C5/40 , Y02P10/283
摘要： A process and apparatus for making steel in a basic oxygen furnace by the top-blowing of pure oxygen and the bottom-blowing of a gas mainly composed of carbon dioxide are disclosed, in which a waste gas discharged from said basic oxygen furnace is utilized as the only source of the gas to be blown into a molten metal.
摘要翻译： 公开了一种通过纯氧的顶吹和主要由二氧化碳构成的气体的底吹来在碱性氧气炉中制造钢的方法和装置，其中将从所述碱性氧炉排出的废气用作 被吹入熔融金属的气体的唯一来源。
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公开(公告)号：US4290802A
公开(公告)日：1981-09-22
申请号：US154217
申请日：1980-05-29
CPC分类号： C21C5/4606 , C21C5/35
摘要： An oxygen top-blowing steelmaking process is disclosed, which comprises preparing a molten metal suitable for producing steel in a basic oxygen furnace, carrying out the top-blowing and bottom-blowing and then tapping the resulting molten steel. The bottom-blowing is carried out at least partly during the period of time from beginning of blowing to the tapping of the melt and a powder of a slag-forming agent, such as quick lime, limestone, is introduced into the molten metal together with the top-blowing of oxygen jet injected through an oxygen lance so as to form an effective slag at an early stage of refining.
摘要翻译： 公开了一种氧吹风炼钢方法，其包括在碱性氧气炉中制备适合于生产钢的熔融金属，进行顶吹和底吹，然后对所得钢水进行攻丝。 底吹至少部分地在从吹制开始到熔融物出料的时间段内进行，并且诸如生石灰，石灰石的成渣剂粉末与 通过氧枪喷射的氧气喷射的顶吹，以便在精炼的早期阶段形成有效的炉渣。
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