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1. 发明专利

JPH01177324A METHOD FOR PRE-REDUCING ORE FLUIDIZED BED 失效
公开(公告)号：JPH01177324A
公开(公告)日：1989-07-13
申请号：JP83788
申请日：1988-01-06
申请人： KOBE STEEL LTD
发明人： ONODA MAMORU , ASHINAGA TAKEHIKO , SHINOHARA KATSUFUMI , TAKENAKA YOSHIMICHI , IMANISHI NOBUYUKI
IPC分类号： C22B1/10
摘要： PURPOSE:To prevent sticking and to stabilize pre-reduction of fluidized bed for ore by introducing ore powder restraining attached carbon quantity to low in the pre-reduction furnace and adding carbonic material for supplementing shortage of the carbon quantity to the quantity in accordance with composition of gas for pre-reduction. CONSTITUTION:At the time of pre-reducing the ore, the coal/ore ratio is set to about 0.5-0.85. At first, the ore powder is introduced into the fluidized bed pre-reduction furnace under restraining the attached carbon quantity on the ore powder to low. On the other hand, by adding the carbonic material obtd. from coal carbonization process, the shortage of the carbonic quantity is supplemented. Then, the adding quantity of the carbonic material is adjusted in accordance with the composition of the gas for pre-reduction introducing the adding quantity of the carbonic material into the furnace. A part of the added carbonic material functions as the stick-preventing agent. By this method, the high pre-reduction ratio can be obtd. and also the quantity of coal used can be reduced.

2. 发明专利

JPS5640442A TREATMENT OF STEEL PRODUCTION SLAG 失效
公开(公告)号：JPS5640442A
公开(公告)日：1981-04-16
申请号：JP11765279
申请日：1979-09-12
申请人： KOBE STEEL LTD
发明人： FUJITA ISAO , IMANISHI NOBUYUKI , KUDOU YASUO , SHINOHARA KATSUFUMI
IPC分类号： C21C5/28 , B03C1/00 , C21C5/00 , F27D15/00
摘要： PURPOSE:To enable iron based ore to be recovered and reclaimed from steel production sludge and to use as iron production material by a method wherein sludge is crushed to below a specified value and selected by high magnetic force. CONSTITUTION:A steel production sludge discharged from converters or electric furnaces contains a considerable amount of metal iron. Such steel production sludge is crushed to sizes of 105mu or less, preferably to sizes of 44mu or less, then is selected by high magnetic force, preferably by high magnetic flux density at gradient of 100K Gauss 1cm or higher. This allows iron based ore to be recovered from sludge and to use it as raw material of iron production. Furthermore, the remaining slag is reused as raw material for high-quality cement.

3. 发明专利

JPH0629448B2 失效
公开(公告)号：JPH0629448B2
公开(公告)日：1994-04-20
申请号：JP7532386
申请日：1986-03-31
申请人： KOBE STEEL LTD
发明人： MORI KENJI , ONODA MAMORU , WATANABE MAKOTO , SHINOHARA KATSUFUMI , ASHINAGA TAKEHIKO , IMANISHI NOBUYUKI
IPC分类号： C21B13/00 , C10G11/00 , C21B13/14

4. 发明专利

JPS62230920A METHOD FOR OPERATING FLUIDIZED BED TYPE THERMAL DECOMPOSITION FURNACE 失效
公开(公告)号：JPS62230920A
公开(公告)日：1987-10-09
申请号：JP7532486
申请日：1986-03-31
申请人： KOBE STEEL LTD
发明人： MORI KENJI , SHINOHARA KATSUFUMI , ASHINAGA TAKEHIKO , IMANISHI NOBUYUKI , TAKENAKA YOSHIMICHI , KAMIJO TSUNAO
IPC分类号： F27B15/00 , C21B13/00
摘要： PURPOSE:To surely prevent the sticking of powdery or granular iron ore by introducing the iron ore into a fluidized bed type thermal decomposition furnace together with a fluidizing gas to form a fluidized bed, introducing a carbon source into the middle layer of the bed and thermally decomposing it. CONSTITUTION:Powdery or granular iron ore is introduced into a fluidized bed type thermal decomposition furnace 1 from the bottom together with a fluidizing gas to form a fluidized bed consisting of lower, middle and upper layers in which the grain size of the iron ore is gradually reduced toward the upper part. A carbon source such as tar produced by the dry distillation of coal is introduced into the middle layer and thermally decomposed to stick carbon to the surface of the powdery or granular iron ore. The carbon stuck powdery or granular iron ore of a relatively small grain size and the powdery or granular iron ore of a relatively large grain size having no stuck carbon are discharged from the middle layer.

5. 发明专利

JPS6169910A Fluidized bed reducing method of iron ore 失效
标题翻译：铁矿石流化床还原方法
公开(公告)号：JPS6169910A
公开(公告)日：1986-04-10
申请号：JP19133084
申请日：1984-09-12
申请人： Kobe Steel Ltd
发明人： SAEKI OSAMU , MORI KENJI , ONODA MAMORU , WATANABE MAKOTO , SHINOHARA KATSUFUMI , ASHINAGA TAKEHIKO , IMANISHI NOBUYUKI
IPC分类号： C21B13/00
CPC分类号： C21B13/0033 , Y02P10/136
摘要： PURPOSE: To prevent the generation of sticking and to execute efficiently reduc tion reaction in a smoothly flowing state by sticking the carbon content consisting of a coal type carboneous material to the surface of fine and granular iron ore then reducing the iron ore by a fluidized bed method.
CONSTITUTION: The fine and granular iron ore Ore and the pulverous carboneous material C are charged into the 1st fluidized bed furnace 1 and a reducing gas (or inert gas) is blown therein from the bottom to heat the materials to about 400W600°C. The carbon content is thus stuck and deposited at about 3.5W5wt% on the iron ore surface. The carbon-stuck iron ore (C/Ore) is fed to the 2nd fluidized bed furnace 2 where the reducing gas is blown from the bottom to heat the ore to about 900W1,200°C and to reduce the ore. Even if the reaction temp. is increased in this state, sticking does not arise and the reduction reaction progresses smoothly. The reduced iron F obtd. in such a manner is fed together with carbon and oxygen to a melting furnace 3 where impurities are removed from the reduced iron and the molten iron is produced.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了防止产生粘附并通过将由煤型碳质材料构成的碳含量粘附在细粒状铁矿石的表面上，以平滑流动的状态有效地进行还原反应，然后通过流化床还原铁矿石方法。构成：将细粒状铁矿石和粉状碳质材料C装入第一流化床炉1中，从底部向其中吹入还原气体（或惰性气体），将材料加热至约400-600度。 C。因此碳含量被粘附并沉积在铁矿石表面上的约3.5-5wt％。将碳 - 碳铁矿石（C / Ore）进料到第二流化床炉2中，从底部吹入还原气体，将矿石加热到约900-1200℃，并减少矿石。即使反应温度在这种状态下增加，粘附不会发生，并且还原反应进行顺利。减铁铁以这种方式与碳和氧一起进料到熔化炉3，其中从还原铁中除去杂质并产生铁水。

6. 发明专利

JPS53145924A ADDITIVE FOR WARM BATH 失效
公开(公告)号：JPS53145924A
公开(公告)日：1978-12-19
申请号：JP6083477
申请日：1977-05-24
申请人： KOBE STEEL LTD
发明人： OKAMOTO KEIKO , IMANISHI NOBUYUKI , KAWAI TAKAO , SHINOHARA KATSUFUMI , TAMURA MASAKO
IPC分类号： A61K8/00 , A61K8/96 , A61Q19/10
摘要： PURPOSE:An additive for warm bath giving similar effect to natural hot spring, comprising surfur-containing slug produced in the course of iron manufacturing.

7. 发明专利

JPS5324317A PROCESS FOR TREATMENT OF BLAST FURNACE SLAG BALLAST 失效
公开(公告)号：JPS5324317A
公开(公告)日：1978-03-07
申请号：JP9939676
申请日：1976-08-19
申请人： KOBE STEEL LTD
发明人： FUJITA ISAO , IMANISHI NOBUYUKI , SHINOHARA KATSUFUMI , KAWAI TAKAO
IPC分类号： C04B5/00

8. 发明专利

JPH0360884B2 失效
公开(公告)号：JPH0360884B2
公开(公告)日：1991-09-18
申请号：JP19133084
申请日：1984-09-12
申请人： KOBE STEEL LTD
发明人： SAEKI OSAMU , MORI KENJI , ONODA MAMORU , WATANABE MAKOTO , SHINOHARA KATSUFUMI , ASHINAGA TAKEHIKO , IMANISHI NOBUYUKI
IPC分类号： C21B13/00

9. 发明专利

JPS63262426A RAW MATERIAL FOR IRON MANUFACTURE 失效
公开(公告)号：JPS63262426A
公开(公告)日：1988-10-28
申请号：JP9908487
申请日：1987-04-21
申请人： KOBE STEEL LTD
发明人： ASHINAGA TAKEHIKO , ONODA MAMORU , IMANISHI NOBUYUKI , TSUCHIYA OSAMU , SHINOHARA KATSUFUMI
IPC分类号： C22B1/14 , C21B13/02
摘要： PURPOSE:To improve operation stability, by using, as a raw material for iron manufacture to be supplied to a vertical furnace, a material prepared by coating the surface of a lumpy or spherical raw material for iron manufacture with cement-blended iron ore so as to prevent clustering. CONSTITUTION:After the iron content of a lumpy or spherical raw material (core) for iron manufacture is regulated to 66-70wt.%, the above raw material is coated with a cement-blended iron ore of about 6- =about 1,000 deg.C operating temp., and high-efficiency prereduction can be carried out by inhibiting heat loss.

10. 发明专利

JPS62230924A MANUFACTURE OF SMELTED AND REDUCED IRON 失效
公开(公告)号：JPS62230924A
公开(公告)日：1987-10-09
申请号：JP7532586
申请日：1986-03-31
申请人： KOBE STEEL LTD
发明人： TAKENAKA YOSHIMICHI , KAMIJO TSUNAO , SHINOHARA KATSUFUMI , ASHINAGA TAKEHIKO , MORI KENJI , NISHIDA REIJIRO
IPC分类号： C21B13/14
摘要： PURPOSE:To stably maintain high operational efficiency when smelted and reduced iron is manufactured by combining reduction in a fluidized bed with smelting and reduction, by specifying the rate of prereduction of iron ore in a prereducing stage and the efficiency of secondary combustion in a smelting and reducing furnace. CONSTITUTION:Powdery iron ore is preheated with a preheater 1 and sent to a fluidized bed type carbon coating tower 2, where the ore is brought into contact with tar or the like fed to the tower 2 to coat the surface of the ore with carbon. The ore is sent to a fluidized bed prereducing furnace 3, prereduced at 75-95% rate of prereduction and sent to a smelting and reducing furnace 4, where the ore is finally reduced with gaseous CO produced by the reaction of a carbonaceous material with oxygen. At the same time, quick lime is blown to carry out dephosphorization and secondary combustion is carried out with

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