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    • 32. 发明专利
    • LANCE
    • JPS62185814A
    • 1987-08-14
    • JP2757586
    • 1986-02-10
    • SUMITOMO METAL IND
    • IKEMIYA HIROYUKIYAMAMOTO TAKAIKUYOSHIDA SHUJIWADA MINORU
    • F27D3/16C21C1/00
    • PURPOSE:To develop a lance having excellent treating power by using specifically constructed inside pipe and outside pipe to constitute the lance to be used for preliminary refining of a molten iron, mixing oxygen and treating agent in a nozzle part and blowing the mixture into the molten iron. CONSTITUTION:The molten iron is subjected to preliminary refining such as desiliconization, dephosphorization and desulfurization prior to refining of the molten iron to a steel. Powder of Na2CO3, CaO, etc., as the treating agent for preliminary refining and gaseous O2 for oxidizing impurities are blown by a lance into the molten iron. The lance to be used in this case is constituted of a double pipe system in which the inside pipe 4 is freely attachably and detachably inserted into the outside pipe 3 coated with refractories 2. A right- angled conduit part 5 and a convergent type nozzle 6 are formed to the top end of the outside pipe 3 and the top end 4A of the inside pipe 4 is bent toward the nozzle 6 and is provided in the part inner than the outlet of the outside pipe 3 in such a manner that the center lines 6C coincide with each other. The gaseous O2 is ejected from the outside pipe 3 and the treating agent 7 for preliminary refining from the inside pipe 4 into the molten iron.
    • 34. 发明专利
    • Gas substituting method of gas installation for blast furnace
    • 气体燃烧气体安装方法
    • JPS5956506A
    • 1984-04-02
    • JP16779182
    • 1982-09-27
    • Sumitomo Metal Ind Ltd
    • YAMAMOTO TAKAIKUHATANAKA HIROMITSUTANAKA MINORU
    • C21B7/22C21B9/14
    • C21B9/14
    • PURPOSE:To perform safely gas substitution with low-cost gas by detecting the oxygen concn. of the waste combustion gas to be used as a medium gas, confirming that the compsn. thereof is within the range of the object for substitution and conducting the gas to a piping system for purging. CONSTITUTION:An introducing pipe 3 for waste combustion gas is successively provided to the discharging pipe 21 for waste combustion gas of a hot stove 2, and the other end thereof is communicated with an air introducing pipe 16 of a cleaning system. The oxygen concn. of the waste combustion gas introduced into the pipe 3 is analyzed continuously with a detector 5 in the stage of repairing the gas cleaning system 1 of the installation for a blast furnace gas. It is confirmed that the compsn. of the gas is within the safe limit of not inducing explosion and a water sealing valve 4 is opened to discharge the combustible gas in the system 1 with a release valve 17. At the same time, a medium gas is admitted through the pipe 3 and the pipe 16 into the system 1. The valve 4 is closed upon completion of the gas substitution and a fan 15 is changed over to an air introducing side to introduce the air into the system 1.
    • 目的:通过检测氧浓度,以低成本气体进行安全的气体替代。 的废气燃烧气体用作中等气体,证实了该燃料气体。 在取代对象物的范围内,将气体导入用于清洗的管道系统。 构成:在热风炉2的废气燃烧气体排出管21上依次设置有用于废气的导入管3,其另一端与清洗系统的空气导入管16连通。 氧气浓度 在用于高炉煤气的装置的气体净化系统1的修复阶段,用检测器5连续分析引入到管3中的废燃烧气体。 证实了compsn。 的气体处于不引起爆炸的安全限度内,并且打开一个水密封阀4以便用释放阀17排出系统1中的可燃气体。同时,介质气体通过管3和 管道16进入系统1.阀4在气体替换完成时关闭,风扇15转换到空气引入侧以将空气引入系统1。
    • 36. 发明专利
    • Efficient recovery method of platinum group element from copper iron scrap
    • 铜铁组元素的有效恢复方法
    • JP2011149052A
    • 2011-08-04
    • JP2010011022
    • 2010-01-21
    • Osaka UnivSumitomo Metal Ind Ltd住友金属工業株式会社国立大学法人大阪大学
    • NAKAMOTO MASASHIYAMAMOTO TAKAIKU
    • C22B11/02C22B7/00C22B9/02
    • C22B11/042C22B7/003C22B11/02C22B11/025C22B59/00Y02P10/214Y02P10/22Y02P10/234Y02P10/236
    • PROBLEM TO BE SOLVED: To provide a means for efficiently recovering platinum group elements by efficiently concentrating platinum group elements into a molten copper phase obtained from copper iron scrap (scrap containing both copper and iron) containing platinum group elements typified by platinum.
      SOLUTION: The copper iron scrap containing the platinum group elements, is melted and a carbon source is caused to be contained in the obtained molten material, and thus, this molten material comprises two-liquid phases of a molten copper phase containing one or more kinds rare metals selected from the group composed of Nd, Pr and Dy and a molten iron phase containing carbon concentration of ≥1 mass%, and the molten copper phase is recovered by separating this two liquid phases, and the platinum melted in this molten copper phase is separated and recovered from the molten copper phase. The copper iron scrap may contain rare metal and a member containing the rare metal may be added into the molten material. Further, the total concentration of the rare metal contained in the molten copper phase, is desirable to be ≥1 mass%.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种通过有效地将铂族元素浓缩到由含有以铂为代表的铂族元素的铜铁废料(含铜和铁的废料)获得的熔融铜相中来有效地回收铂族元素的方法。 解决方案:含有铂族元素的铜铁屑被熔化,并且在获得的熔融材料中包含碳源,因此该熔融材料包括含有一个熔融铜相的两液相 或更多种选自由Nd,Pr和Dy组成的组的稀有金属和含有≥1质量%的碳浓度的铁水相,并且通过分离这两个液相来回收熔融铜相,并且铂在该 熔融铜相从熔融铜相中分离回收。 铜铁废料可以含有稀有金属,并且可以将含有稀有金属的成分加入到熔融材料中。 此外,熔融铜相中所含的稀有金属的总浓度优选为≥1质量%。 版权所有(C)2011,JPO&INPIT
    • 38. 发明专利
    • METHOD FOR PREDICTING FURNACE HEAT IN BLAST FURNACE
    • JPH11335710A
    • 1999-12-07
    • JP14073698
    • 1998-05-22
    • SUMITOMO METAL IND
    • UJISAWA MASARUYAMAMOTO TAKAIKU
    • C21B5/00
    • PROBLEM TO BE SOLVED: To provide a method for predicting furnace heat, by which the accuracy of the furnace heat control in a blast furnace is improved and the blast furnace can stably be operated. SOLUTION: Molten iron temp. and Si content in the molten iron, are calculated by using the operational data in every moment while correcting reaction speed in the furnace in a model so as to match the reaction quantity in the furnace calculated by inputting the operational data in every moment in a blast furnace mathematical model in the consideration of the reaction speed of the principal reaction (indirect reducing reaction of ore, hydrogen reducing reaction of the ore, direct reducing reduction of the ore and transition reaction of Si into the molten iron) generated in the blast furnace with the reaction quantity in the furnace calculated by using furnace gas composition. Then, in the case of holding the operational condition at the point of an attending time, or in the case of changing, the variation of the molten iron temp. and the SI content in the molten iron are predictly calculated.
    • 39. 发明专利
    • OPERATION OF BLAST FURNACE
    • JPH11286705A
    • 1999-10-19
    • JP9180098
    • 1998-04-03
    • SUMITOMO METAL IND
    • SUNAHARA KOHEIINADA TAKANOBUJINBO TAKAOYAMAMOTO TAKAIKUMATSUKURA YOSHITOKU
    • C21B5/00
    • PROBLEM TO BE SOLVED: To provide an operating method of blast furnace, by which the productivity of a blast furnace can be improved without increasing air-flow resistance and liquid-flow resistance in the furnace under a high PCI operation. SOLUTION: The increasing amount of the ratio (ΔP/P) of the pressure loss ΔP between a tuyere and the furnace top part to the blasting pressure P developed according to the increase of blown-in pulverized fine coal quantity, is measured and the charging quantity of iron raw material containing metallic iron from the furnace top part is increased based on the preobtd. relation of the rising quantity of ΔP/P and the iron raw material (e.g. reduced iron) quantity including the metallic iron charged from the furnace top part. When the increasing amount of the pressure loss ratio in the furnace becomes >=0.025 per 30 kg/ton of pig iron of increasing quantity of the blown-in pulverized fine coal quantity, the reduced iron having >=25 mm average grain diameter and >=50% ratio of metallized part, is used, and it is desirable to charge the reduced iron so that the mixing ratio in the iron source (iron ore, sintered ore, etc.), exceeds the rising quantity of the pressure loss ratio in the furnace before and after blowing in the pulverized fine coal × 100 (wt.%).