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公开(公告)号：US4316739A
公开(公告)日：1982-02-23
申请号：US181024
申请日：1980-08-25
申请人： Donald Beggs , John C. Scarlett
发明人： Donald Beggs , John C. Scarlett
CPC分类号： C21B13/002 , C21B13/06 , F27B1/025 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A method and apparatus for producing molten iron in which pulverized coal is gasified with oxygen in an iron melting chamber, iron pellets on an upstanding hearth in the melting chamber are exposed to the gasification heat and melted. Molten iron trickles down from the hearth to a surrounding liquid bath. Off-gases from the chamber are utilized for direct reduction of iron oxide pellets to produce hot reduced iron pellets which are melted in the chamber.
摘要翻译： 在铁熔化室中用煤气化粉煤的铁水的方法和装置，在熔化室中的直立炉床上的铁丸暴露于气化热并熔化。 熔化铁从炉膛下降到周围的液体浴。 来自室的废气用于直接还原氧化铁颗粒以产生在室中熔化的热还原铁丸。
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公开(公告)号：US4381939A
公开(公告)日：1983-05-03
申请号：US229611
申请日：1981-01-29
CPC分类号： C22B23/021 , C21B13/0073 , C22B5/12 , Y02P10/136
摘要： Ores which include in combination iron oxide, cobalt oxide and nickel oxide are treated in a continuous shaft reduction furnace to selectively reduce nickel and cobalt to metallized form while leaving the iron oxide in the oxide form. Reacted top gas is recycled and mixed with partially combusted gasified fossil fuel in a combustion chamber to achieve the required concentration of reductants in the reducing gas. The cooling zone operates with a similar concentration of reductants in the cooling gas. Apparatus is also disclosed for carrying out the process.
摘要翻译： 在连续轴还原炉中处理包含氧化铁，氧化钴和氧化镍的组合的矿石，以选择性地将镍和钴还原成金属化形式，同时留下氧化物为氧化物形式。 反应的顶部气体在燃烧室中再循环并与部分燃烧的气化化石燃料混合，以实现还原气体中所需的还原剂浓度。 冷却区在冷却气体中与类似浓度的还原剂一起运行。 还公开了用于执行该过程的装置。
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3.发明授权
公开(公告)号：US4260412A
公开(公告)日：1981-04-07
申请号：US112680
申请日：1980-01-16
CPC分类号： C21B13/0073 , Y02P10/136
摘要： A method of producing direct reduced iron with fluid bed coal gasification in which a portion of cooled, recycled gas is used as coolant in the gasification chamber and a second portion of the cleaned recycled gas is heated and mixed with the hot, dust-free gasification gas to form reducing gas for the direct reduction process. Limestone is preferably mixed with the pulverized coal feed to the gasification chamber to desulfurize the gas.
摘要翻译： 一种利用流化床煤气化生产直接还原铁的方法，其中将一部分冷却的再循环气体用作气化室中的冷却剂，并将第二部分清洁的再循环气体与热无尘气化 气体形成还原气体，用于直接还原过程。 石灰石优选与粉煤进料混合到气化室以对气体进行脱硫。
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公开(公告)号：US4470581A
公开(公告)日：1984-09-11
申请号：US459435
申请日：1983-01-20
CPC分类号： C21B13/0073 , C22B23/021 , C22B5/12 , Y02P10/136
摘要： Ores which include in combination iron oxide, cobalt oxide and nickel oxide are treated in a continuous shaft reduction furnace to selectively reduce nickel and cobalt to metallized form while leaving the iron oxide in the oxide form. Reacted top gas is recycled and mixed with partially combusted gasified fossil fuel in a combustion chamber to achieve the required concentration of reductants in the reducing gas. The cooling zone operates with a similar concentration of reductants in the cooling gas. Apparatus is also disclosed for carrying out the process.
摘要翻译： 在连续轴还原炉中处理包含氧化铁，氧化钴和氧化镍的组合的矿石，以选择性地将镍和钴还原成金属化形式，同时留下氧化物为氧化物形式。 反应的顶部气体在燃烧室中再循环并与部分燃烧的气化化石燃料混合，以实现还原气体中所需的还原剂浓度。 冷却区在冷却气体中与类似浓度的还原剂一起运行。 还公开了用于执行该过程的装置。
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5.发明授权
公开(公告)号：US4331470A
公开(公告)日：1982-05-25
申请号：US187024
申请日：1980-09-15
CPC分类号： C21B13/0073 , Y02P10/136 , Y02P10/216
摘要： A method and apparatus for the direct reduction of iron in a shaft furnace using gas from the gasification of solid fossil fuel, such as coal, in which the fuel gas is desulfurized and upgraded in the shaft furnace and direct reduction of iron oxide is carried out in the same furnace. Clean export fuel can be produced by this method along with direct reduced iron. The apparatus includes means for controlling the temperature of the process gas entering the furnace.
摘要翻译： 使用来自固体化石燃料（例如煤）的气体的气体直接还原铁的方法和装置，其中燃料气体在竖炉中脱硫和升级并直接还原氧化铁 在同一炉中 清洁出口燃料可以通过这种方法和直接还原铁生产。 该装置包括用于控制进入炉的工艺气体的温度的装置。
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公开(公告)号：US4270740A
公开(公告)日：1981-06-02
申请号：US156850
申请日：1980-06-05
CPC分类号： C21B13/002 , C21B13/06 , C21B13/14 , F27B1/26 , Y02P10/122 , Y02P10/128 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： Apparatus for reducing particulate iron oxide and producing molten iron in which coal and oxygen are injected into a molten iron bath to melt the iron, gasify the coal and produce a hot off-gas which is then used as the reductant in a counterflow shaft furnace to reduce iron oxide pellets and/or natural ore in a continuous manner. The hot reduced iron product from the shaft furnace is discharged directly into the molten iron bath from which the molten iron product is discharged.
摘要翻译： 用于还原颗粒氧化铁并生产铁水的装置，其中将煤和氧气注入铁水浴中以熔化铁，气化煤并产生热废气，然后将其用作逆流竖炉中的还原剂 以连续的方式还原氧化铁颗粒和/或天然矿石。 来自竖炉的热还原铁产品直接排放到铁水池中，从其中排出铁水产品。
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公开(公告)号：US4238226A
公开(公告)日：1980-12-09
申请号：US58037
申请日：1979-07-16
CPC分类号： C21B13/002 , C21B13/06 , C21B13/14 , Y02P10/122 , Y02P10/128 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A method and apparatus for reducing particulate iron oxide and producing molten iron in which coal and oxygen are injected into a molten iron bath to melt the iron, gasify the coal and produce a hot off-gas which is then used as the reductant in a counterflow shaft furnace to reduce iron oxide pellets and/or natural ore in a continuous manner. The hot reduced iron product from the shaft furnace is discharged directly into the molten iron bath from which the molten iron product is discharged.
摘要翻译： 一种用于还原颗粒氧化铁并生产铁水的方法和装置，其中将煤和氧气注入铁水浴中以熔化铁，使煤气化并产生热废气，然后将其用作逆流中的还原剂 竖炉以连续的方式还原氧化铁颗粒和/或天然矿石。 来自竖炉的热还原铁产品直接排放到铁水池中，从其中排出铁水产品。
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公开(公告)号：US4235425A
公开(公告)日：1980-11-25
申请号：US57932
申请日：1979-07-16
申请人： Donald Beggs , John C. Scarlett
发明人： Donald Beggs , John C. Scarlett
CPC分类号： C21B13/002 , C21B13/06 , F27B1/025 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A method and apparatus for producing molten iron in which pulverized coal is gasified with oxygen in an iron melting chamber, iron pellets on an upstanding hearth in the melting chamber are exposed to the gasification heat and melted. Molten iron trickles down from the hearth to a surrounding liquid bath. Off-gases from the chamber are utilized for direct reduction of iron oxide pellets to produce hot reduced iron pellets which are melted in the chamber.
摘要翻译： 在铁熔化室中用煤气化粉煤的铁水的方法和装置，在熔化室中的直立炉床上的铁丸暴露于气化热并熔化。 熔化铁从炉膛下降到周围的液体浴。 来自室的废气用于直接还原氧化铁颗粒以产生在室中熔化的热还原铁丸。
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9.发明授权
公开(公告)号：US4201571A
公开(公告)日：1980-05-06
申请号：US967348
申请日：1978-12-07
申请人： John C. Scarlett , Donald Beggs
发明人： John C. Scarlett , Donald Beggs
CPC分类号： C21B13/02 , C21B13/0073 , C21B2100/02 , C21B2100/04 , Y02P10/136
摘要： A method for the direct reduction of iron and production of fuel gas in which a fossil fuel is gasified to produce a hot gas which is tempered with a carbon dioxide rich gas. The mixture is reacted with carbon to upgrade it in reducing potential and is desulfurized by reaction with lime in a first shaft furnace to form a hot reducing gas. The hot reducing gas is utilized as the reductant in a counterflow shaft reduction furnace, a minor portion of the spent reducing gas is recycled as tempering gas for the gas from the hot gasifier, and the major portion of spent reducing gas becomes a source of fuel gas.
摘要翻译： 一种用于直接还原铁和生产燃料气体的方法，其中使化石燃料气化以产生用富二氧化碳气体回火的热气体。 使混合物与碳反应以提高其降低电位，并通过与第一竖炉中的石灰反应脱硫以形成热还原气体。 热还原气体用作逆流还原炉中的还原剂，少量部分废还原气体作为用于来自热气化器的气体的回火气体再循环，并且废还原气体的主要部分成为燃料源 加油站。
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公开(公告)号：US4685964A
公开(公告)日：1987-08-11
申请号：US783517
申请日：1985-10-03
CPC分类号： C21B13/002 , C21B13/14 , Y02P10/122 , Y02P10/128 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A highly efficient method and apparatus for production of molten iron using coal by coal gasification in a molten iron gasifier-melter. The gasifier-melter is coupled to a direct reduction shaft furnace and utilizes both the gaseous and solid output of the shaft furnace. The process is especially efficient when using non-metallurgical coals.
摘要翻译： 一种用于在铁水气化器 - 熔化器中通过煤气化生产使用煤的铁水的高效方法和装置。 气化器 - 熔化器连接到直接还原竖炉，并利用竖炉的气体和固体输出。 当使用非冶金煤时，该方法特别有效。
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