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1. 发明专利

JP2004266899A Small dc motor having superior recyclability 有权
公开(公告)号：JP2004266899A
公开(公告)日：2004-09-24
申请号：JP2003052663
申请日：2003-02-28
申请人： Nippon Steel Corp , Nittetsu Elex Co Ltd , 新日本製鐵株式会社 , 株式会社日鉄エレックス
发明人： OHASHI TETSUO , NISHIKAWA KIYOSHI , NAMIENO TSUTOMU , ONISHI TADAHARU , FUKUTANI KAZUHIKO , TAJIMA KEISUKE
IPC分类号： H02K3/02 , H02K3/04 , H02K13/00 , H02K23/00
摘要： PROBLEM TO BE SOLVED: To offer a small DC motor having superior recyclability to be used in electrical equipment for automobile. SOLUTION: This small DC motor having superior recyclability to be used in electrical equipment for automobile, is characterised in that the winding wound around an armature, which constitutes a rotor, consists of Al or an Al alloy, where the coating treatment for insulating is applied, and an armature piece connected with the winding consists of a stainless steel or a ferroalloy. COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JPS57134503A OPERATION METHOD FOR BLAST FURNACE 失效
公开(公告)号：JPS57134503A
公开(公告)日：1982-08-19
申请号：JP2015981
申请日：1981-02-16
申请人： NIPPON STEEL CORP
发明人： NISHIKAWA KIYOSHI , MAEKAWA NORIYUKI , ISHIGURO KEN
IPC分类号： C21B5/00
摘要： PURPOSE:To lower the height of an average softening and melt-sticking zone and to blow low Si iron by charging iron-contg. main nut raw materials mainly near the periphery of a furnace to make the layer thickness around the periphery of the furnace thin and operating the furnace with increasing the temp. before tuyeres. CONSTITUTION:The sintered are O1 of ordinary grain sizes is charged to the center-intermediate of the inside of a blast furnace 6 and fine grain sintered ore O2 is charged mainly near the furnace wall by controlling the movable armor or swiveling chute in the top part of said furnace. The layer thickness of the fine grain sintered ore O2 is so controlled as to attain 1/3-2/3 the thickness of the sintered ore O1 layer. When coke C1 is charged next and the above-mentioned charging is repeated, the root position 8 of a softening and melt-sticking zone is heightened. Thereupon, the blast furnace is operated by increasing the temp. before the blast furnace tuyeres 4, lowering the position of the softening and melt-sticking zone of the heightened position 8 and lowering the height of the average softening and melt-sticking zone. Then, the depth of Si in molten iron is lowered.

3. 发明专利

JPS55119107A CHARGING METHOD OF RAW MATERIAL FOR BLAST FURNACE 失效
公开(公告)号：JPS55119107A
公开(公告)日：1980-09-12
申请号：JP2693879
申请日：1979-03-08
申请人： NIPPON STEEL CORP
发明人： HIMEDA MASATAKA , SATOU FUMIHIRO , NISHIKAWA KIYOSHI , KUSHIMA YUKIMASA , ASHIMURA TOSHIKATSU
IPC分类号： A61B5/0408 , A61B5/0478 , A61B5/0492 , C21B5/00
摘要： PURPOSE:To improve the gas ventilation property of a blast furnace in the case when the compounding ratio of pellets are high by a method wherein ores, whose main bodies are the pellets, are charged near a furnace wall as the first ore dump after dumping coke. CONSTITUTION:Ores consisting of the pellet base of the compounding ratios of approximate 50% or more are dumped as the first ore dump after dumping coke. When compounding residual pellets into succeeding ore dump, the quantity of the pellets is decreased up to the compounding ratios of approximate 50% or less in order to lessen the flowing-in effect of the pellets to a central portion of the furnace. When adopting this method, the flowing-in of the pellets to the central portion of the furnace is controlled, the thickness of an ore layer at the central portion need not be thickened, and a mixing layer with excellent gas permeability can be formed extending over a central region from the middle. Thus, the distribution of gas in the furnace is stabilized in a central flow shape, gas ventilation becomes stable, and the heat load of a furnace wall portion can also be kept at a low level.

4. 发明专利

JPS6213510A PRELIMINARY TREATMENT DEVICE FOR MOLTEN IRON 失效
公开(公告)号：JPS6213510A
公开(公告)日：1987-01-22
申请号：JP15056185
申请日：1985-07-09
申请人： NIPPON STEEL CORP
发明人： NISHIKAWA KIYOSHI , MASAGAKI AKIO , IMAI ATSUHIKO
IPC分类号： C21B7/14 , C21C1/00 , C21C1/02 , C21C1/04
摘要： PURPOSE:To permit an easy slag-off treatment and to prevent the hindrance of the passage of a molten iron by solidification of the residual iron by tiltably disposing a reaction vessel to the molten iron spout part between the large spout of a blast furnace and molten iron tilting spout and supplying a preliminary treatment agent to the molten iron dropped and poured into the reaction vessel. CONSTITUTION:The molten iron from which blase furnace slag is removed is dropped and poured from the molten iron spout 10 into the reaction vessel 11 and a desiliconizing agent is supplied by a lance 9 to the dropping position so as to react with the molten iron, by which the molten iron is separated to desiliconized slag 15 and desiliconized iron 16. The slat 15 and iron 16 are respectively discharged by a skimmer 12 to a desiliconized slag discharge spout part 13 and a desiliconized iron discharge spout part 14. The vessel 11 is tilted to the molten slag spout 17 side by a hydraulic cylinder 24 to discharge residual slag 41 to the spout 17 when there is no more inflow of the molten iron to the vessel 11 upon completion of one tapping. The reaction vessel is then tilted to the molten iron spout 18 side to discharge the residual iron 29 to the spout 18. The solidification of the residual iron 29 is thereby prevented and the failure in the next tapping and desiliconization treatment is averted.

5. 发明专利

JPS57131303A METHOD FOR OPERATION OF BLAST FURNACE 失效
公开(公告)号：JPS57131303A
公开(公告)日：1982-08-14
申请号：JP1438381
申请日：1981-02-04
申请人： NIPPON STEEL CORP
发明人： NISHIKAWA KIYOSHI , NISHIO MICHITAKA , YAMAMOTO MICHITO , HAMADA MASAHIKO
IPC分类号： C21B5/00
摘要： PURPOSE:To achieve less variance in the quality of molten iron, stable furnace conditions and less time since tappint till slag off in a blast furnace provided with >=2 tap holes, by eliminating the temp. difference in the molten iron between the tap holes. CONSTITUTION:Tuyere end temps. are determined by the heat balance in tuyere parts; for example, the molten iron temps. from respective tap holes are made always constant by changing the blowing rate of heavy oil whereby the operations of a blast furnace can be continued stably. With a blast furnace wherein the Nos. 2, 3 THs on the 2nd, 1st hearth side of tap holes Nos. 1-3 THs are usually used alternately in tapping, the No. 1 TH is used as a spare and its tuyeres are divided appriximately equally to Nos. 1-27. In case the molten iron temp. of the No. 2 TH is slightly higher between the Nos. 2 and 3 THs in the stage of operation, 27 pieces of the tuyeres are quadrisected to the No. 1 near the latter, the tuyere group of the Nos. 21-27, the tuyere group of the Nos. 9-15 near the former, and the other goup. The rate of the heavy oil to be blown is changed to a slight decrease, a slight increase and absence of the increase or decrease in order of these groups, whereby the differences in said molten iron temps. are eliminated.

6. 发明专利

JPS524521A PROCESS FOR PREPARING ARTIFICIAL MASONRY MATERIAL FROM BLAST FURNACE SLAG 失效
公开(公告)号：JPS524521A
公开(公告)日：1977-01-13
申请号：JP8106775
申请日：1975-07-01
申请人： NIPPON STEEL CORP
发明人： SHIMOMURA YASUTO , KUSHIMA YUKIMASA , NISHIKAWA KIYOSHI
IPC分类号： C04B5/00 , C03C10/00 , C04B35/16 , C04B35/653

7. 发明专利

JPS57143412A HUMIDIFYING METHOD FOR BLAST FOR BLAST FURNACE 失效
公开(公告)号：JPS57143412A
公开(公告)日：1982-09-04
申请号：JP2937481
申请日：1981-03-03
申请人： NIPPON STEEL CORP
发明人： SHIODA HARUYOSHI , NISHIKAWA KIYOSHI , ISHIGURO KEN , SAITOU YOSHIO
IPC分类号： C21B9/00 , C21B9/16
摘要： PURPOSE:To improve the thermal efficiency of a hot stove in particular and to improve a heat energy effect by adding moisture in the state of water drops into the blast to be supplied from the hot stove to a blast furnace thereby humidifying the blast for blast furnaces. CONSTITUTION:When the tuyere level temp. in a blast furnace 7 or the heat level in the furnace 7 fluctuates, an adequate instruction is given to a controller 22 by taking the rate of fluctuations during operation of a blower 1, the moisture content of the atmospheric air, the max. permissible amt. of water tobe added, etc. into consideration. In accordance with this instruction, the water drops in the fine water droplet staate are added through a nozzle 18 installed in a blast pipe 11 into the cold wind 3 which is increased of pressure by the blower 1. The water drops are evaporated in the pipe 11 before they arrive at a hot stove 5 by the sensible heat of the pressure increased blast 3, by which blast air 17 is humidified; at the same time, the temp. of the air 17 is reduced by the degree corresponding to the heat of evaporation of the water drops. Next, the humidified blast 3 is heat exchanged with the air 17 of reduced temp. in a regeneration chamber 14 which is already heated by the combustion heat of fuel 8 for combustion in the furnace 5, whereby it is heated up to the prescribed value and the hot blast 6 is blown through a blast pipe 6 into the furnace 7.

8. 发明专利

JPS51151713A PROCESS FOR PREPARING ARTIFICIAL MASONRY PRODUCTS FROM BLAST FURNACE SLAG 失效
公开(公告)号：JPS51151713A
公开(公告)日：1976-12-27
申请号：JP7539275
申请日：1975-06-20
申请人： NIPPON STEEL CORP
发明人： SHIMOMURA YASUTO , KUSHIMA YUKIMASA , NISHIKAWA KIYOSHI
IPC分类号： C04B5/00 , C03C10/00 , C04B35/16 , C04B35/22

9. 发明专利

JPH06264120A PRODUCTION OF PIG IRON 失效
公开(公告)号：JPH06264120A
公开(公告)日：1994-09-20
申请号：JP7505993
申请日：1993-03-10
申请人： NIPPON STEEL CORP
发明人： KANOSHIMA HIDEO , NISHIKAWA KIYOSHI , FURUKAWA TAKASHI , KAWAOKA KOJI , NAITO MASAAKI
IPC分类号： C21B5/00 , C21B11/02
摘要： PURPOSE:To effectively utilize scrap at the time of producing molten iron for steelmaking. CONSTITUTION:In this production method for pig iron supplied to the steelmaking, a small capacity vertical type reduction melting furnace 1 is arranged in parallel with a blast furnace 2 and the vertical type reduction melting furnace 1 mainly uses the scrap as the iron source and the scrap is charged together with coke to produce the molten iron, and impurity contents in the molten iron in the vertical type reduction melting furnace 1 are analyzed in each unit quantity of the molten iron, and by comparing with impurity limit contents in the molten iron required in each kind of steel in the steelmaking process, the molten iron of the vertical type reduction melting furnace 1 and molten iron of the blast furnace 2 are mixed so as to produce the molten iron having each impurity limit content or lower. By this method, the molten iron of the vertical type reduction melting furnace, in which the purity is varied according to the impurity contents in the scrap, can be used to the max. limit quantity being permissible in each kind of steel in the steelmaking process and the consumption of the scrap in the iron-making and the steelmaking continuous system is increased.

10. 发明专利

JPS58213806A Operating method of blast furnace 失效
标题翻译： BLAST FURNACE作业方法
公开(公告)号：JPS58213806A
公开(公告)日：1983-12-12
申请号：JP9489882
申请日：1982-06-04
申请人： Nippon Steel Corp
发明人： KANBE MITSUO , NISHIO MICHITAKA , NISHIKAWA KIYOSHI , NAITOU FUMIO
IPC分类号： C21B5/00
CPC分类号： C21B5/006
摘要： PURPOSE:To prevent blow-by accident by setting the factorial effect for the blow-by of a blast furnace at three factorial effects, and making preventive measures for the blow-by which differ according to the degree of the influence of the blow-by by the respective factorial effects alone or by the combination thereof. CONSTITUTION:The factorial effect for the blow-by of a blast furnace is determined at the following three factorial effects: The first factorial effect: One or plurality among air permeability, the fluctuation in the air permeability, the fluctuation in the descending speed of charge and the fluctuation in the top temp. of the furnace are anomalous. The second factorial effect: Either one or both of the circumferential balance in the distribution of gaseous flow and the fluctuation in the circumferential balance in the distribution of gaseous flow are anomalous. The third factorial effect: The fluctuation in the top pressure of the furnace is anomalous. The system for controlling the operation of the blast furnace is improved as a preventive measure for the blow-by in the case of the 1st factorial effect alone. The rate of blasting is decreased by a small rate and the ore/coke is decreased by a small rate in the case of the combination of the 1st factorial effect and the 2nd factorial effect or the combination of the 1st factorial effect and the 3rd factorial effect. The rate of blasting is decreased by a large rate and the one/coke is decreased by a large rate in the case of the combination of the 1st factorial effect, the 2nd factorial effect and the 3rd factorial effect.
摘要翻译：目的：通过设定三级因素影响高炉窜气的因果关系，防止窜气，并根据窜气的影响程度，对窜气作出预防措施的不同，通过单独的因子效应或其组合。构成：高炉窜气的阶乘效应由以下三个因素决定：第一个阶乘效应：透气度，透气度波动，电荷下降速度波动中的一个或多个和最高温度的波动。的炉子是异常的。第二个因素效应：气流分布中的圆周平衡和气流分布中圆周平衡的波动中的一个或两个是异常的。第三个阶段效应：炉顶压力的波动是异常的。用于控制高炉操作的系统作为仅在第一阶段效应的情况下的窜气的预防措施得到改善。在第一因子效应和第二因子效应的组合或第一因子效应和第三因子效应的组合的情况下，爆破率降低了一个小的比例，并且矿石/焦炭减少了一个小的速率。在第一因子效应，第二因子效应和第三因子效应的组合的情况下，爆破率以较大的速率降低，并且焦炭减少了很大的速率。

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