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21. 发明专利

JPH0196317A MANUFACTURE OF MOLTEN PIG IRON 失效
公开(公告)号：JPH0196317A
公开(公告)日：1989-04-14
申请号：JP25137487
申请日：1987-10-05
申请人： SUMITOMO METAL IND
发明人： KAMEI YASUO , MIYAZAKI TOMIO , YAMAOKA HIDEYUKI
IPC分类号： C21C1/08 , C21B11/02 , C21C1/00 , C21C5/56
摘要： PURPOSE:To attain a high-thermal-efficiency operation in molten pig iron manufacture by passing a high-temp. reducing gas through a packed bed of scrap in a vertical furnace, allowing coke to float on molten slag, and then blowing a combustion supporting gas so as to burn a high-temp. gas. CONSTITUTION:Scrap 5 is charged into a vertical furnace 1-2 to form a packed bed of scrap, and a hydrocarbon-type fuel 6 is blown through a blast lance 2-1 in a horizontal furnace 1-1. The generated high-temp. reducing gas is passed countercurrent through the packed bed of scrap. Subsequently, coke 8 is charged through a raw fuel-charging hole 2-3 in the ceiling part 2 of the horizontal furnace and allowed to float on molten pig iron slag 9. Then, a combustion supporting gas 17 is blown through a combustion supporting gas-blowing hole 2-2 in the ceiling part 2 of the horizontal furnace and also through a combustion supporting gas-blowing hole 3 in the side wall of the vertical furnace and a high-temp. gas is burnt. The scrap 5 is heated and melted by means of the resulting heat. by this method, FeO concentration in the slag can be kept at a low value and, as a result, the corrosion of refractories can be prevented.

22. 发明专利

JPS63216908A BACH TYPE PRODUCTION FOR MOLTEN METAL 失效
公开(公告)号：JPS63216908A
公开(公告)日：1988-09-09
申请号：JP5088787
申请日：1987-03-04
申请人： SUMITOMO METAL IND
发明人： YAMAOKA HIDEYUKI , MIYAZAKI TOMIO , KAMEI YASUO
IPC分类号： C21B11/00
摘要： PURPOSE:To improve thermal efficiency, by utilizing reducing gas generating by burning carboneous material in packing layer in a furnace to the reduction of ore and burning by produced gas, which does not reduct ore, by combustion- aiding gas blowing to the packing layer, to utilize as sensible heat. CONSTITUTION:The carboneous material 6 and the ore 7 are charged in the cylindrical furnace 1 to form the packing layer 9. Next, the combustion-aiding gas (for example, O2) is blown from the combustion-aiding gas blowing nozzle 3 arranged at the furnace bottom of the above cylindrical furnace 1, to burn the carboneous material 6. By this method, high temp. reducing gas is generated and also the ore 7 is prereduced. Next, the combustion-aiding gas is blown in the above packing layer 9, to burn the by produced gas, which is not contributed to the reduction of ore 7, and preheat the ore 7. Further, under remaining condition of the carboneous material 6 in the furnace 1, by blowing the combustion-aiding gas, molten iron and molten slag are extracted from tapping hole 4 for the molten iron and slag.

23. 发明专利

JPS63195207A PRODUCTION OF MOLTEN IRON 失效
公开(公告)号：JPS63195207A
公开(公告)日：1988-08-12
申请号：JP2793187
申请日：1987-02-09
申请人： SUMITOMO METAL IND
发明人： KAMEI YASUO , MIYAZAKI TOMIO , YAMAOKA HIDEYUKI
IPC分类号： C21B11/02
摘要： PURPOSE:To produce molten iron having excellent quality at a little coke ratio and low cost, by keeping high reducing atmosphere inside of furnace at the time of producing molten iron from steel scrap as raw material by a cylindrical furnace providing tuyeres for blasting and an auxiliary fuel combustion room and heating the raw material by using the auxiliary fuel. CONSTITUTION:The steel scrap 10 of iron raw material, coke 11 for blast furnace and slag making agent 12 of lime stone, silica, etc., are charged from upper raw material charging hole 1 of the cylindrical furnace, and air 13 and oxygen 14 are blown from the tuyere 4 and also the auxiliary fuel 17 of heavy oil, fine powdered coal, etc., is burnt in the auxiliary fuel combustion room 5 by the air 18, and the charged raw material is heated and melted by generated high temp. gas and the molten iron 15 is produced by carbonizing and siliconizing the steel scrap. In this case, by making CO2/(CO2+CO) and H2O/(H2O+H2) in the generated gas by combustion of the coke to both zero as the bosh gas in the blast furnace and making the temp. of combustion gas to >=2,000 deg.C, the molten iron having good quality is produced under good fuel efficiency.

24. 发明专利

JPS6345311A METHOD FOR OPERATING BLAST FURNACE 失效
公开(公告)号：JPS6345311A
公开(公告)日：1988-02-26
申请号：JP18614486
申请日：1986-08-09
申请人： SUMITOMO METAL IND
发明人： YAMAOKA HIDEYUKI , MIYAZAKI TOMIO , KAMEI YASUO
IPC分类号： C21B5/00
摘要： PURPOSE:To enable perfect combustion of pulverized coal and to minimize coke consumption by blowing the pulverized coal of the amt. satisfying the specific conditions associated to the molar amt. of O2 under blasting together with the oxygen-enriched air regulated to an adequate oxygen partial pressure from tuyeres into a blast furnace. CONSTITUTION:The pulverized coal is blown together with the air into the blast furnace from the tuyeres and smelting is executed contriving at reduction of coke consumption. The air to be blasted from the tuyeres in the above- mentioned operating method for the blast furnace is enriched with O2 and the oxygen partial pressure Po2 expressed by the equation PO2=(amt. of O2 in the air+amt. of enriching O2)/(amt. of air+amt. of enriching O2)Xblasting pressure (absolute pressure) is regulated to Po2>1 atom (absolute pressure). The amt. of the pulverized coal to be blown form the above-mentioned tuyeres is set within the conditions 1

25. 发明专利

JPS6160124B2 失效
公开(公告)号：JPS6160124B2
公开(公告)日：1986-12-19
申请号：JP1801879
申请日：1979-02-19
申请人： SUMITOMO METAL IND
发明人： HATANO MICHIHARU , KURITA KOICHI , YAMAOKA HIDEYUKI , SHIMODA TERUHISA , KARYA JUNJI
IPC分类号： C21B5/00

26. 发明专利

JPS61130411A Method for controlling characteristic of reducing gas in production of reduced iron 失效
标题翻译：控制还原铁生产中减少气体特性的方法
公开(公告)号：JPS61130411A
公开(公告)日：1986-06-18
申请号：JP25372484
申请日：1984-11-29
申请人： Sumitomo Metal Ind Ltd
发明人： KAMEI YASUO , YAMAOKA HIDEYUKI , FUKAGAWA MAKOTO , TACHIBANA MASAHISA
IPC分类号： C21B13/00 , C21B11/02 , C21B13/02 , C21B13/14
摘要： PURPOSE: To improve the production efficiency of reduced iron by controlling adequately the temp. and compsn. of the reducing gas generated by the gasfication of fuel in the stage of supplying the reducing gas to a vertical type reduction furnace and producing the reduced iron from iron ore.
CONSTITUTION: Coke 14 is charged into a gasifying furnace 1 and coal fuel 12 and gaseous oxygen 13 are supplied into the furnace through tuyeres 11 so as to be imperfectly burned and to generate the reducing gas consisting essentially of CO and H
2 . The reducing gas is supplied through a pipeline 3 into the vertical type reduction furnace 2 to reduce lumped iron oxide 10 and to produce the solid reduced iron 15. The compsn. of CO, H
2 , etc., in the reducing gas and the temp. are respectively measured with an analyzer 7 and a thermometer 6 provided to the pipeline 3 for the reducing gas and the flow rates of the O
2 , CO
2 and H
2 O to be blown through gas blowing pipes 4-1, 4-2, 4-3 are regulated adequately by respective flow rate regulating valves 5-1, 5-2, 5-3 to control the temp. and compsn. components of the reducing gas entering the furnace 2, by which the reduced iron is produced with high thermal efficiency and reduction efficiency.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过充分控制温度来提高还原铁的生产效率。和compsn。在将还原气体供给到垂直型还原炉的阶段中由燃料气化产生的还原气体，并从铁矿石生产还原铁。构成：将焦炭14装入气化炉1中，将煤燃料12和气态氧13通过风口11供入炉中，使其不完全燃烧并产生基本上由CO和H2组成的还原气体。还原气体通过管道3供给到垂直型还原炉2中，以减少集中氧化铁10并产生固体还原铁15。的CO，H2等，在还原气体和温度下。分别用分析器7和设置在管道3上的还原气体的温度计6和通过气体吹送管4-1,4-2,4-3吹送的O 2，CO 2和H 2 O的流量进行测量。通过相应的流量调节阀5-1,5-2,5-3充分调节以控制温度。和compsn。进入炉2的还原气体的成分，通过该成分制造还原铁，具有高的热效率和还原效率。

27. 发明专利

JPS616122B2 JPS616122B2 - 失效
公开(公告)号：JPS616122B2
公开(公告)日：1986-02-24
申请号：JP13380281
申请日：1981-08-25
申请人： Sumitomo Metal Ind
发明人： KURITA KOICHI , HATANO MICHIHARU , YAMAOKA HIDEYUKI
IPC分类号： C21B5/00 , C21B7/24
CPC分类号： C21B7/24

28. 发明专利

JPS60200949A PRODUCTION OF HIGH-CARBON FERROMANGANESE 失效
公开(公告)号：JPS60200949A
公开(公告)日：1985-10-11
申请号：JP5445184
申请日：1984-03-23
申请人： SUMITOMO METAL IND
发明人： FUKAGAWA MAKOTO , YAMAOKA HIDEYUKI , KAMEI YASUO , TACHIBANA MASAHISA
IPC分类号： C22B4/00 , C22B9/04 , C22B47/00 , C22C33/04
摘要： PURPOSE:To reduce the manganese oxide in slag and to produce high-carbon ferromanganese at a good yield by receiving high-carbon ferromanganese and slag after smelting into a ladle and charging adequately a carbon source into the ladle under specific conditions. CONSTITUTION:The high-carbon ferromanganese and slag produced in an electric furnace or blast furnace are taken out in the molten state into a ladle 1. A furnace cap 7 and and an arc electrode 8 are set in a prescribed position and the coke of the amot. exceeding the amt. of the carbon necessary for reducing MnO in the slag 5 is fed from a hopper 10 into the ladle to refine the high-carbon ferromanganese and slag. The slag 5 and the metal 6 are maintained at 130- 1,500 deg.C under heating and stirring by arc electrodes 8 and an induction coil 9. An inert gas such as N2 or the like is fed into the ladle through a porous plug 3 to maintain the inert gaseous atmosphere of a low CO partial pressure below

29. 发明专利

JPS60200903A PRODUCTION OF REDUCED IRON 失效
公开(公告)号：JPS60200903A
公开(公告)日：1985-10-11
申请号：JP5693784
申请日：1984-03-23
申请人： SUMITOMO METAL IND
发明人： YAMAOKA HIDEYUKI
IPC分类号： C21B13/00
摘要： PURPOSE:To produce reduced iron with a lessened reducing gas in the stage of subjecting powder iron ore to solid phase reduction in a fluidized bed furnace method and producing the reduced iron by forming a packed bed having gaps of spherical refractories in the fluidized bed. CONSTITUTION:A preliminary reduction furnace 1 and final reduction furnace 2 packed therein with spherical alumina 3 having 20mm. diameter at 0.4 voids are installed and powder iron ore 4 having

30. 发明专利

JPS60162177A BLAST LANCE FOR VERTICAL TYPE REDUCING MELTING FURNACE 失效
公开(公告)号：JPS60162177A
公开(公告)日：1985-08-23
申请号：JP1673484
申请日：1984-02-01
申请人： SUMITOMO METAL IND
发明人： KAMEI YASUO , YAMAOKA HIDEYUKI , FUKAGAWA MAKOTO , TACHIBANA MASAHISA
IPC分类号： F27B1/10 , F27B1/28

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