专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPS58207313A Refining method of steel 失效
标题翻译：钢精炼方法
公开(公告)号：JPS58207313A
公开(公告)日：1983-12-02
申请号：JP9171682
申请日：1982-05-28
申请人： Sumitomo Metal Ind Ltd
发明人： MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO , NAKAJIMA HIDEO , OKAMURA SHIYOUZOU , HIRATA TAKEYUKI , ANEZAKI MASAHARU
IPC分类号： C21C5/32 , C21C5/35
CPC分类号： C21C5/35
摘要： PURPOSE:To obtain easily ultra-low phosphorus steel in O2 top blown refining by adding slag making agents in the form of powder to molten iron and blowing gases under the bath surface. CONSTITUTION:O2 is injected from three pieces of peripheral nozzles 16 in a nozzle head part A to the molten iron in a converter CV inserted therein with a lance B so that the molten steel is refined by top blowing of O2. Powder of >=1 kind slag making agents such as quicklime, limestone, fluorite, dolomite or the like is carried by a gaseous carrier and is added to the molten iron from the nozzle 15 in the central part. The powder is guided to the surface S of the molten iron without scattering by the O2 from the nozzles 16. >=1 kind among inert gases and gaseous N2, O2, CO, CO2 are blown through a tuyere N under the bath surface S during the period of said blowing or till the discharging period after the end of the blowing that follows the blowing period. The stirring of the molten steel or molten slag is thus intensified; therefore, even if a large amt. of the slag making agent is added, slag-off is accelerated and the formation of slag having >=5 basicity which is considered impossible heretofore is made possible.
摘要翻译：目的：通过将粉末形式的造渣剂加入到铁水中并在浴表面吹入气体，以便在O2顶吹精炼中容易地获得超低磷钢。构成：将O 2从喷嘴头部A中的三个周边喷嘴16喷射到其中插入有喷枪B的转炉CV中的铁水中，使得钢水通过顶吹O2而精炼。 > = 1种造渣剂如生石灰，石灰石，萤石，白云石等粉末由气态载体承载，并从中心部分的喷嘴15加入到铁水中。粉末被引导到铁水的表面S，而不会被来自喷嘴16的O 2散射。在惰性气体中，> = 1种，气体N 2，O 2，CO，CO 2在浴表面S下吹入风口N 所述吹送的期间或直到吹塑结束后的排出期间。因此钢水或熔渣的搅拌加剧; 因此，即使是一个大的amt。的添加渣渣，加速了脱渣，使成为以前不可能的> = 5碱度的渣的形成成为可能。

22. 发明专利

JPS58193309A Method for refining steel 失效
标题翻译：炼钢方法
公开(公告)号：JPS58193309A
公开(公告)日：1983-11-11
申请号：JP7412882
申请日：1982-04-30
申请人： Sumitomo Metal Ind Ltd
发明人： OKANE KOUJI , NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , MASAKO TAKASHI
IPC分类号： C21C5/32 , C21C5/46
CPC分类号： C21C5/4606
摘要： PURPOSE:To enhance the yield ratio of steel, by a method wherein a firing point cooling agent is supplied from a passing orifice communicated with the outlet part of an oxygen nozzle and blown into molten iron containing an extremely reduced amount of slag while dispersed in oxygen in good efficiency to effecutuate the cooling of a firing point and to prevent fume loss. CONSTITUTION:In an oxygen top blowing steel manufacturing method, a mixture consisting of blowing grade oxygen and one kind or more cooling agent such as CO2, CaCO3, steam, water, a Mn ore or an iron ore is blown into molten iron in a state extremely reduced in a slag amount or made slagless by carrying out desilication and dephosphrization by using a porous lance 1. This porous lance 1 has such a structure that a cooling agent supply passage 2 having a passing orifice 2-1 is provided at the center thereof and an oxygen supply passage 3 having an oxygen nozzle 3-1 is provided around said passage 2 and is further equipped with cooling water passages 4, 5. A cooling agent in the cooling agent supply passage 2 is injected to the outlet part of the oxygen nozzle 3-1 from the passing orifice 2-1 and mixed and dispersed in an oxygen jet to be blown into a firing point.
摘要翻译：目的：为了提高钢的屈服比，通过一种方法，其中从与氧气喷嘴的出口部分连通的通孔中提供点火冷却剂，并将其吹入含有极少量的炉渣的铁水中，同时分散在氧气中以有效的方式来实现燃点的冷却和防止烟气流失。构成：在氧气吹制钢制造方法中，将由吹发级氧气和一种或多种冷却剂如CO 2，CaCO 3，蒸汽，水，Mn矿石或铁矿石组成的混合物在一种状态下吹入铁水通过使用多孔喷枪1进行脱溶解和脱磷处理，极大地降低炉渣量或无渣。该多孔喷枪1具有这样的结构，即在其中心设置具有通孔2-1的冷却剂供给通道2 并且在所述通道2周围设置具有氧气喷嘴3-1的供氧通道3，并且还具有冷却水通道4,5。冷却剂供给通道2中的冷却剂被注入氧气的出口部分喷嘴3-1从通孔2-1喷射并混合并分散在氧气射流中以吹入点火点。

23. 发明专利

JPS58181846A Preparation of ferroalloy 失效
标题翻译：食品的制备
公开(公告)号：JPS58181846A
公开(公告)日：1983-10-24
申请号：JP6283382
申请日：1982-04-14
申请人： Sumitomo Metal Ind Ltd
发明人： OKANE KOUJI , NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , MASAKO TAKASHI
IPC分类号： C22C33/04 , C22C38/00
摘要： PURPOSE: To prepare ferroalloy, by blowing a metal ore such as Cr ore as a particulate form as a mixture with oxygen into molten iron in a melting furnace by using a porous, non-immersed top blowing lance to melt and reduce the metal ore in high productivity and high yield.
CONSTITUTION: A molten iron bath 8 is stored in a melting furnace 1 at about 1,300°C and a carbonaceous substance 10 such as coal, coke, pitch or heavy oil from the central nozzle a
1 of a porous non-immersed top blowing lance 2 having a cooling channel a
4 while oxygen is blown thereinto from a nozzle a
3 to gasify said carbonaceous substance to recover a produced gas from a recovery skirt 3 and a hood 4. When the temp. of the molten iron bath 8 reaches a high temp. of about 1,600°C or more by gasification reaction, a mixture comprising one kind or more metal ore or metal oxide of Cr, Ni, Mn, V, Mo or Fe is blown thereinto from a nozzle a
2 in a particulate form and further mixed in an oxygen jet 11 from the nozzle a
3 in the vicinity of an outlet to be securely added to the high temp. firing point formed by the oxygen jet 11, and ferroalloy is formed by quick heat reception, melting and reduction.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：通过使用多孔非浸入式顶吹喷枪将金属矿石如Cr矿石作为与氧气的混合物吹入熔融炉中的铁水中，以熔融并还原金属矿石，制备铁合金生产率高，产量高。构成：将熔融铁浴8储存在约1300℃的熔化炉1和多孔非浸入式顶吹喷枪2的中心喷嘴a1上的碳质物质10如煤，焦炭，沥青或重油具有冷却通道a4，同时从喷嘴a3吹入氧气，从而使所述碳质物质气化，从回收裙3和罩4中回收产生的气体。的铁水浴8达到高温。通过气化反应为约1600℃以上，将从Cr 1，Ni，Mn，V，Mo或Fe的一种以上的金属矿或金属氧化物的混合物从颗粒状的喷嘴a2吹入其中，进一步混合在来自出口附近的喷嘴a3的氧气喷射11中，以牢固地添加到高温。由氧气射流11形成的点火，通过快速的热接收，熔融还原，形成铁合金。

24. 发明专利

JPS5879817A CONCENTRATION OF TITANIUM OXIDE 失效
公开(公告)号：JPS5879817A
公开(公告)日：1983-05-13
申请号：JP17870781
申请日：1981-11-07
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , KOJIYOU SAKAE , OKANE KOUJI , TAGAMI TOYOSUKE , FUKUDA JIYUUICHIROU , ANEZAKI MASAHARU , MATSUO TOORU , MASUDA SEIICHI
IPC分类号： C01G23/04
摘要： PURPOSE:To prepare concentrated slag of titanium oxide in a reducing chamber efficiently, by feeding a raw material source for titanium to the reducing chamber separated by the partition wall of a gasifying furnace of iron bath, reducing selectively oxides of metals such as Fe, etc. in the raw material. CONSTITUTION:The smelting furnace 1 is separated into the gasifying chamber 3 and the reducing chamber 4 by the partition wall 2, constructed in such a way that the molten iron 6 can flow freely in the space between the partition wall 2 and the bottom of the furnace, and Ar, N2, O2, CO2, etc. is fed from the nozzles 12 and 13 for sending a stirring gas at the bottom of the furnace to the molten iron 6. The coal, coke, pitch, heavy oil, etc. 17 together with the oxygen 18 are introduced from the unimmersed spray lance 5 in the gasifying chamber 3 and gasified so that the molten iron 6 is heated to about 1,500-1,700 deg.C and a carbon content is raised. In this state, the raw material source 19 for titanium such as iron sand, titanium ore, etc. is blown from the lance 9 in the reducing chamber 4 into it. Oxides of metals such as Fe, Cr, V, etc. contained in the raw material source 19 for titanium are reduced selectively with carbon in the molten iron 6, so that the content of titanium oxide in the slag 21 is raised.

25. 发明专利

JPS5873742A MANUFACTURE OF FERROALLOY 失效
公开(公告)号：JPS5873742A
公开(公告)日：1983-05-04
申请号：JP10672081
申请日：1981-07-07
申请人： SUMITOMO METAL IND
发明人： FUKUDA JIYUUICHIROU , TAGAMI TOYOSUKE , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , KOJIYOU SAKAE , OKANE KOUJI , NAKAJIMA HIDEMASA , MATSUO TOORU , MASUDA SEIICHI , ANEZAKI MASAHARU
IPC分类号： C22C33/04
摘要： PURPOSE:To manufacture a ferroalloy used as an additive for an alloying element in a steel manufacturing stage at a low cost by blowing carbonaceous fuel, together with O2, into a molten iron bath in a melting furnace to gasify the fuel, simultaneously charging metallic ore or metallic oxide of Cr, Ni, Mn or the like, and melting and reducing it. CONSTITUTION:Carbonaceous fuel such as coal or coke, together with O2, is blown into a considerable amount of a molten iron bath stored in a melting furnace to gasify the fuel, and simultaneously >=1 kind of metallic ore or metallic oxide of Cr, Ni, Mn, V, Mo or the like is charged and melted. As a result, C solubilized in the iron bath is reacted with O2, producing gaseous CO2, and by utilizing a large quantity of heat generated during the reaction and C solubilized in the iron bath, said metallic ore or metallic oxide is reduced to obtain the desired ferroalloy.

26. 发明专利

JPS5849622A CONCENTRATION OF TITANIUM OXIDE 失效
公开(公告)号：JPS5849622A
公开(公告)日：1983-03-23
申请号：JP14713781
申请日：1981-09-17
申请人： SUMITOMO METAL IND
发明人： OKAMURA SHIYOUZOU , SUEYASU MASANOBU , KOJIYOU SAKAE , OKANE KOUJI , NAKAJIMA HIDEMASA , TAGAMI TOYOSUKE , FUKUDA JIYUUICHIROU , ANEZAKI MASAHARU , MATSUO TOORU , MASUDA SEIICHI
IPC分类号： C22B34/12 , C01G23/04 , C01G23/047
摘要： PURPOSE:To concentrate titanium oxide contained in the raw material of titanium source, economically, by introducing a carbonaceous material together with oxygen into a molten iron bath to effect the gasification of the carbonaceous material, and at the same time, throwing the titanium source to the bath to reduce the iron oxide. CONSTITUTION:A carbonaceous material 3 is introduced together with oxygen 4 through the lance 5 or 25 into the molten iron 1 of 1,200-1,400 deg.C stored in the smelting furnace 2, and is gassified. The gas produced in the furnace is recovered via the vertically movable skirt 9 and hood 10. When the temperature of the iron bath in the furnace has reached 1,500-1,600 deg.C by the heat of the gassification reaction, the titanium source material 6 is introduced into the molten iron bath through the bottom nozzle 8, lance 25 or chute 11. The titanium source material added to the iron bath is molten quickly and reacts with a large amount of carbon dissolved in the iron bath to proceed the reduction reaction of the oxide of metals such as Fe. Titanium oxide which cannot be reduced under the oxidation potential in the system is captured by the melting and the reduction, and the titanium oxide can be concentrated.

27. 发明专利

JPS5811377A FISSION REACTOR 失效
公开(公告)号：JPS5811377A
公开(公告)日：1983-01-22
申请号：JP10861981
申请日：1981-07-10
申请人： SUMITOMO METAL IND
发明人： SUEYASU MASANOBU , OKAMURA SHIYOUZOU , OOKITA YOSHIMICHI
IPC分类号： C10J3/57 , C10J3/20 , F27B3/02

28. 发明专利

JPS589959A MANUFACTURE OF FERROALLOY 失效
公开(公告)号：JPS589959A
公开(公告)日：1983-01-20
申请号：JP10672181
申请日：1981-07-07
申请人： SUMITOMO METAL IND
发明人： FUKUDA JIYUUICHIROU , TAGAMI TOYOSUKE , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , KOJIYOU SAKAE , OKANE KOUJI , NAKAJIMA HIDEMASA , MATSUO TOORU , MASUDA SEIICHI , ANEZAKI MASAHARU
IPC分类号： C22C33/04
摘要： PURPOSE:To manufacture a ferroalloy at a low cost while recovering a large quantity of useful gases by melting and reducing metallic ore or metallic oxide using surplus heat generated by gasification in a gasifying furnace holding an iron bath and carbon dissolved in the iron bath. CONSTITUTION:A carbonaceous substance 3 such as coal, coke or heavy oil and a gasifying agent 4 such as O2 are blown into molten iron 1 stored in a melting furnace 2 at about 1,300 deg.C from a lance 6 to decompose the substance 3 in the iron bath 1 into H2 and CO. The gases are recovered through a liftable skirt 9 and a hood 10. By heat generated by the gasification reaction the temp. of the iron bath 1 reaches about 1,600 deg.C. Finely crushed metallic ore 5 is then blown into the bath 1 from the lance 6. The ore 5 is reduced with C dissolved in the bath 1, and the molten iron 1 is converted into a ferroalloy. In case of an easily oxidizable metal such as Cr, it remains in slag 12 as oxide, so the blowing of the ore 5 and O24 is suitably stopped, and by vigorously blowing an inert gas 7 from bottom blowing nozzles 8, the bath 1 is violently agitated to allow the reduction to proceed.

29. 发明专利

JPS6050143A PRODUCTION OF FERRO ALLOY 失效
公开(公告)号：JPS6050143A
公开(公告)日：1985-03-19
申请号：JP15739483
申请日：1983-08-29
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , KOJIYOU SAKAE , ANEZAKI MASAHARU
IPC分类号： C22C33/04 , C22B9/05
摘要： PURPOSE:To perform melt reduction of a large amt. of metallic ore, etc. with a small amt. of a carbonaceous material by providing successively a nozzle for blowing powder and granules, a nozzle for blowing a gasifying agent and a nozzle for blowing an oxidizing agent for secondary combustion from the central part to the outside of a non-immersed top blowing lance. CONSTITUTION:A non-immersed top blowing multihole lance L1 of a melting furnace is provided with a nozzle a1 for blowing powder and granules which blows a powder and granular carbonaceous material, metallic ore, metallic oxide, etc. in the central part of a lance body 2-1. A nozzle a2 for blowing a gasifying agent such as oxygen or the like is provided around the nozzle a1. A nozzle a3 for blowing an oxidizing agent such as oxygen or the like intended mainly for secondary combustion of the formed gas in the furnace is further provided on the same circumference or the outside of the nozzle a2 and the angle theta2 of inclination of said nozzle a3 with respect to the axis of the lance is set at 20-60 deg.. The melt-reducing power for metallic ore, metallic oxide, etc. is thus remarkably improved.

30. 发明专利

JPS5959821A Metal refining furnace and its operating method 失效
标题翻译：金属精炼炉及其操作方法
公开(公告)号：JPS5959821A
公开(公告)日：1984-04-05
申请号：JP16971482
申请日：1982-09-30
申请人： Sumitomo Metal Ind Ltd
发明人： OKANE KOUJI , OKAMURA SHIYOUZOU , SUEYASU MASANOBU , KOJIYOU SAKAE , NAKAJIMA HIDEMASA
IPC分类号： C21C5/48 , C21C5/35
CPC分类号： C21C5/35
摘要： PURPOSE:To regulate the flow rate of gas to be blown into molten metal in a furnace by using porous bricks as part of the material of the wall of the furnace contacting with the molten metal, and connecting the bricks to a coolant source. CONSTITUTION:Porous bricks 5, 5' are used as part of the material of the wall 1 of a metal refining furnace contacting with molten metal 2 in the furnace, and the bricks 5, 5' are connected to a coolant source with ducts 6, 6'. The preferred diameter of the pores in the bricks 5, 5' is 0.5-1.5mm., and the pores are arranged at intervals of 20-50mm.. Gas is blown into the molten metal 2 from the bricks 5, 5' to accelerate the agitation and refining of the molten metal 2. Since the gas is blown through the pores of said small diameter, the flow rate of the gas to be blown is easily regulated.
摘要翻译：目的：通过使用多孔砖作为与熔融金属接触的炉壁的材料的一部分来调节在炉中熔融金属中吹入的气体的流量，并将砖连接到冷却剂源。构成：多孔砖5,5'用作与炉中的熔融金属2接触的金属精炼炉的壁1的材料的一部分，并且砖5,5'与具有导管6的冷却剂源连接， 6' 。砖5,5'中的孔的优选直径为0.5-1.5mm，孔以20-50mm的间隔布置。气体从砖5,5'吹入熔融金属2中以加速熔融金属2的搅拌和精炼。由于气体吹过所述小直径的孔，所以容易调节待吹气体的流量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式