专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS59120361A DETECTION OF NOZZLE OPENING DEGREE OF ROTARY NOZZLE 失效
公开(公告)号：JPS59120361A
公开(公告)日：1984-07-11
申请号：JP22711082
申请日：1982-12-27
申请人： NIPPON KOKAN KK , NIHON ROOTARII NOZURU KK
发明人： TSUNOSAKI YOSHIO , SHIRAISHI YUKIO , YOSHIHARA TETSUYA , SAKAMOTO MIOSHI , YOSHIDA HIROSHI
IPC分类号： B22D11/18 , B22D37/00 , B22D41/26
摘要： PURPOSE:To detect the opening degree of a rotary nozzle with high accuracy without receiving the influence of temp. by detecting the rotating angle of a rotor or intermediate gear in a sliding part which opens and closes the nozzle hole with a photodetector and transmitting the same with an optical fiber to a photoelectric conversion part. CONSTITUTION:A sliding plate brick 5 is rotated via a gear 8 provided on the outside circumference of a rotor to select the opening degree of a nozzle hole 6 in the bottom part of a pan 1 for a molten steel. The rotation of a rotor 7 or an intermediate gear 15 is transmitted via a flexible shaft 16 to the rotary disc 19 of a detector 17. The light signal generated by the detector is received with a photodetecting head 22, which detects the rotating angle of the disc 19 in the form of the opening degree of the nozzle hole 6. Said opening degree is fed, via an optical fiber 24, to a photoelectric conversion part 26 which converts the angle to an electric signal and applies the signal on a control device 27. The device 27 calculates the signal, compares the same with a set value corresponding to the level of the molten steel and controls a motor 13, thereby adjusting the opening degree of the hole 6.

2. 发明专利

JPH07164023A METHOD FOR SIZING STEEL PIPE 失效
公开(公告)号：JPH07164023A
公开(公告)日：1995-06-27
申请号：JP31649093
申请日：1993-12-16
申请人： NIPPON KOKAN KK
发明人： OKAMOTO YOSHIHIDE , KOBAYASHI NOBUO , YOSHIDA HIROSHI , KAJIYAMA FUYUHIKO
IPC分类号： B21B17/14 , B21B19/10 , B21B27/02
摘要： PURPOSE:To attain a forming condition free from the generation of a roll mark by finding the generation limit line of the roll mark according to the ovalities of three roll stands, and limiting the ovalities of two roll stands and a draft in an outside diameter. CONSTITUTION:In places upper than curves P and Q, where drafts in outside diameter, are large, roll marks occur. Therefore, when the ovalities of three roll stands, are 1.0%, the ovalities of two roll stands and a draft in outside diameter, are selected in the range lower than the curve P. For instance, if the ovalities of the two roll stands, are 1%, its draft in outside diameter, is made

3. 发明专利

JPH0565222B2 失效
公开(公告)号：JPH0565222B2
公开(公告)日：1993-09-17
申请号：JP13585489
申请日：1989-05-31
申请人： NIPPON KOKAN KK , FUKUYAMA GAS KK
发明人： YOSHIDA HIROSHI , KITAJIMA KAZUTSUGU , KOSHI HIDEYUKI , MITSUNARI ETSUJI , EGUCHI HIDENORI
IPC分类号： B01D53/86 , B01D53/94 , B01J23/80 , C10K1/34

4. 发明专利

JPH0496995A PRODUCTION OF HIGH-BTU GAS 失效
公开(公告)号：JPH0496995A
公开(公告)日：1992-03-30
申请号：JP21316090
申请日：1990-08-10
申请人： NIPPON KOKAN KK , FUKUYAMA GAS KK
发明人： SHIKADA TSUTOMU , ASANUMA MINORU , TACHIBANA YAKUDO , YOSHIDA HIROSHI , KITAJIMA KAZUTSUGU , MITSUNARI ETSUJI , EGUCHI HIDENORI
IPC分类号： C10K1/00 , C10K3/02
摘要： PURPOSE:To easily obtain the title gas through such processes that O2 is added to a mixture of coke oven gas and converter gas, and the sulfur compounds contained are removed using an iron oxide catalyst, and then the CO and CO2 are hydrogenated in the presence of a catalyst containing Al, Si, etc., followed by acting a methanating catalyst on the system and then removing the inert gas. CONSTITUTION:Oxygen gas 7 is added to a mixture of coke oven gas 1 and converter gas 4, the resulting gas is fed to a gas purifier 6 where the sulfur compounds in the mixed gas are removed in the presence of an iron oxide-based catalyst 9, and the resultant gas is fed to a hydrocarbon-synthesizing equipment 11 where the remaining carbon monoxide and carbon dioxide in the mixed gas is hydrogenated into a hydrocarbon gas in the presence of a complex catalyst 12 consisting of a mixture of (A) a metal (compound) having hydrogenation-catalytic activity and (B) a crystalline aluminosilicate with the molar ratio of the silica to alumina being

5. 发明专利

JPH0324225A OXYGEN ENRICHING COMBUSTION METHOD FOR CONTINUOUS HEATING FURNACE 失效
公开(公告)号：JPH0324225A
公开(公告)日：1991-02-01
申请号：JP16013289
申请日：1989-06-22
申请人： NIPPON KOKAN KK
发明人： ISHIGUCHI YUKIO , YOSHIDA HIROSHI , IDETA TATATOMI , ISHII YOSHIHIDE
IPC分类号： F23N5/00 , C21D1/52 , C21D9/00 , F23L7/00 , F27D17/00
摘要： PURPOSE:To increase the effect of oxygen enrichment and to reduce equipment investment by decreasing the concn. of discharged NOx by applying a non- catalyst ammonia denitration method in which by-produced ammonia is effectively utilized, thereby increasing the concn. of oxygen. CONSTITUTION:The concn. of the NOx in waste gas is decreased by applying the non-catalyst ammonia denitration method in which the ammonia byproduced in a stage for refining coke furnace gases to the continuous heating furnace is used as a denitration agent. The concn. of the oxygen in the air for combustion is increased by as much as the difference between the concn. of the NOx and the environmental regulated value of the NOx. The increasingly generated NOx is decreased down to about 1/3 to 1/4 by this oxygen enrichment. The concn. at the point of the time when the waste gas is discharged from a chimney is thereby suppressed to the regulated value or below. The threshold of the concn. of the oxygen which can be used for enrichment at the same regulated value or below is greatly improved and the fuel saving effect of the oxygen enrichment is enhanced.

6. 发明专利

JPS6347309A SMELTING, REDUCING AND REFINING EQUIPMENT 失效
公开(公告)号：JPS6347309A
公开(公告)日：1988-02-29
申请号：JP19246386
申请日：1986-08-18
申请人： NIPPON KOKAN KK
发明人： YOSHIDA HIROSHI , FUJII SHIRO
IPC分类号： C21B13/00 , C21B13/14
摘要： PURPOSE:To enable the self-supply of the entire amt. of the oxygen to be used in a smelting and reducing furnace in a smelting and reducing process for iron ore having the smelting and reducing furnace and prereducing furnace by separating and recovering oxygen from air by making use of the sensible heat of an exhaust gas and combustion heat. CONSTITUTION:A molten iron is produced by the preheated lime and coal and prereduced iron ore supplied from the prereducing furnace 2 to the smelting and reducing furnace 1 and blowing gaseous O2 to the furnace to smelt and reduce the iron ore. The exhaust gas of the smelting and reducing furnace 1 is fed to the prereducing furnace 2 to preheat and prereduce the iron ore, coal, lime, etc. The exhaust gas is passed through a dust collector 3 and a heat exchanger 4 where steam is generated. A steam turbine 12 is driven by the generated steam. The cooled gas is subjected to the sepn. and recovery of CO2 in a CO2 removing device and is subjected to the combustion of the CO and H2 contained therein in a burner 7 to drive a gas turbine 8, by which a generator 11 is driven. The O2 in the air is separated from N2 by an air compressor 14 and an oxygen separator. The entire amt. of the gaseous oxygen to be used in the smelting and reducing furnace 1 is thus obtd.

7. 发明专利

JPS62214234A POWER GENERATING SYSTEM 失效
公开(公告)号：JPS62214234A
公开(公告)日：1987-09-21
申请号：JP5693886
申请日：1986-03-17
申请人： NIPPON KOKAN KK
发明人： FUJII SHIRO , KONISHI JIRO , SAKURAI HISASHI , SUGIYAMA SHUNICHI , KOBAYASHI KOJI , YOSHIDA HIROSHI , SHIBATA MOTOHIRO
IPC分类号： C21B9/00 , F02C3/30 , F02C7/10
摘要： PURPOSE:To facilitate the adjustment of energy balance by accumulating the heat of a regenerative heat exchanger with a by-product gas fuel and, then, sending air to said heat exchanger and radiating said air and feeding a gas turbine with said air. CONSTITUTION:A by-product gas 9 is sent to a combustion chamber 2 through heat exchangers 4, 3 and the heat which a combustion product gas possesses is accumulated in a regenerative heat exchanger 1. Air which is pressurized by an air compressor 7 is sent to the regenerative heat exchanger 1 through the heat exchanger 4 is heated by a blasting and radiating process. The heated high-temp. and high-pressure air is fed to a gas turbine 6 to generate electricity. Thereby, the heat which a surplus gas possesses can be taken out as necessary, facilitating the adjustment of energy balance.

8. 发明专利

JPS6220811A CYCLICALY USING METHOD FOR MOLTEN IRON LADLE 失效
公开(公告)号：JPS6220811A
公开(公告)日：1987-01-29
申请号：JP16009685
申请日：1985-07-22
申请人： NIPPON KOKAN KK
发明人： YOSHIDA HIROSHI , FUJII SHIRO
IPC分类号： F27D3/12 , B22D41/05 , C21C1/06
摘要： PURPOSE:To prevent the temp. drop during the conveyance of an empty ladle and to cyclically use the molten iron ladle with good workability by capping the molten iron ladle after discharging with a thin steel sheet and dropping the molten iron into the ladle from above the cap body, thereby melting the cap body into the molten iron. CONSTITUTION:The cap 4 for temp. retaining is imposed from above to the aperture in the upper part of the molten iron ladle 1 which is emptied by discharging the molten iron into a converter 2. The cap 4 is constituted of the thin steel sheet in such a manner that the cap 4 can be melted in the molten iron. The ladle 1 on which the cap 4 is placed is moved by a carriage 5 toward a blast furnace to receive the molten iron therefrom. The molten iron is poured from above the cap 4 into the ladle 1 and the cap 4 falls into the ladle 1 by the weight and heat of the molten iron so that the cap is melted in the molten iron 3. The ladle after receiving the molten iron moves to the converter 2 and the molten iron is discharged from the ladle into the converter. Slag floats on the top of the hot metal in the ladle 1 during the movement after the receiving. The heat retaining characteristic is maintained by such slag. The yield of the molten iron is improved by such cyclicaly using method.

9. 发明专利

JPS59109609A Steel marine structure and construction thereof 失效
标题翻译：钢结构及其结构
公开(公告)号：JPS59109609A
公开(公告)日：1984-06-25
申请号：JP21702082
申请日：1982-12-13
申请人： Nippon Kokan Kk , Nishimatsu Kensetsu Kk , Penta Ocean Constr Co Ltd
发明人： KAMEI TOSHIO , TAKANO MORIKUNI , WATARI YOSHIHARU , OGAWA YASUSUKE , OOHIRA TAKUYA , YOSHIDA HIROSHI
IPC分类号： E02B17/00 , E02B3/06 , E02B17/02
CPC分类号： E02B17/027
摘要： PURPOSE:To construct a semi-permanent marine structure by a method in which a water-permeable layer and soil and sand layer are orderly provided from above in a cell with a bottom plate of a water-impermeable membrane, and a water-inside-cell discharge tube projected through the soil and sand layer from the water-permeable layer to the upside of the cell is provided. CONSTITUTION:A steel cell 8 having a bottom plate 7 made of a water-impermeable membrane, e.g., a steel sheet, a water-impermeable rubber, concrete, etc., on its bottom is settled into water. One or more water-inside-cell discharge tubes 10 are set on the bottom of the cell in such a way as to project the tops of them through the upper part of the cell. Gravel, etc., is charged to the bottom of the cell to form a water-permeable layer 9 and soil and sand are charged onto the layer 9 to form a soil and sand layer 11. Since the residual water lever in the cell can be lowered thereby, compression force and tensile force to be generated in the upper and lower parts of the cell 8 can be controlled within allowable values.
摘要翻译：目的：通过以下方法构建半永久性海洋结构：其中透水层和土层和砂层从上方有序地提供在具有不透水膜的底板的细胞中，提供了从透水层向电池上方突出通过土层和砂层的电池放电管。构成：在其底部具有由不透水膜（例如钢板，不透水橡胶，混凝土等）制成的底板7的钢槽8沉入水中。将一个或多个水内电池放电管10设置在电池的底部，以使其顶部突出通过电池的上部。砾石等装入细胞底部以形成透水层9，并将土壤和沙粒装入层9上以形成污垢和砂层11.由于细胞中的剩余水杆可以是因此，可以将在电池单元8的上部和下部中产生的压缩力和张力控制在允许值内。

10. 发明专利

JP2000017344A METHOD FOR AGGLOMERATING METALLIC WORKED WASTE 失效
公开(公告)号：JP2000017344A
公开(公告)日：2000-01-18
申请号：JP20289298
申请日：1998-07-03
申请人： KEIHAN KK , NIPPON KOKAN KK
发明人： OMIZO KIYOSHI , YOSHIDA HIROSHI , FUTAGAWA HIDEO , YAMAMOTO NAOKI , TAWARA TSUTOMU , IWAMA TAKURO , SATO SHINKICHI , WAKIMOTO KAZUMASA , ISHIZAKA SHO
IPC分类号： C22B1/24 , C21C5/28 , C21C5/52 , C22B1/244
摘要： PROBLEM TO BE SOLVED: To agglomerate metallic worked waste so as to reuse it, though the metallic worked waste is hardly reused and is discarded as before because there are cotton-like grinding waste and powdery grinding waste in the metallic worked waste and the both are fine and the treatment is inconvenient. SOLUTION: This agglomerating method is provided with the following processes, (a) a process 10 in which cotton-like grinding waste having a 100 mm major axis formed by mutually entangling the metallic grinding waste in the range of a

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