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1. 发明专利

JPS6365730B2 失效
公开(公告)号：JPS6365730B2
公开(公告)日：1988-12-16
申请号：JP21871884
申请日：1984-10-19
申请人： NIPPON KOKAN KK , ASAHI GARASU KK
发明人： YAMAOKA YOJIRO , IINO BUNGO , IZUMI MASARO , TSUCHIMOTO YOSHIHIRO , TAKESA KAZUHIKO , FURUKAWA KAZUHIRO
IPC分类号： C21B5/00 , C21B7/14

2. 发明专利

JP2001049315A STAVE COOLER 失效
公开(公告)号：JP2001049315A
公开(公告)日：2001-02-20
申请号：JP22635699
申请日：1999-08-10
申请人： NIPPON KOKAN KK
发明人： MATSUURA MASAHIRO , IINO BUNGO , SAKAI ATSUSHI , ARAKI TSUNEO
IPC分类号： C21B7/10 , C21B7/00 , F27D1/12
摘要： PROBLEM TO BE SOLVED: To make cooling suitable, to prevent the deterioration of erosion, etc., and to obtain the stabilization for long time by constituting a stave cooler with a main body composed of an iron or an iron alloy including a cooling flow-passage and an outer peripheral part composed of a copper or a copper alloy disposed at the outer priphery of the main body. SOLUTION: The stave cooler is composed of the cast iron-made of main body 1 having the cooling flow passage 3 and the copper-made outer peripheral part 2 arranged so as to cover the whole body of the outer periphery thereof. According to this constitution, the outer peripheral portion is held to the low temp. by covering the outer peripheral portion of the main body easily becoming the high temp. with the copper-made member having high thermal conductivity, and while holding the cooling to the suitable degree, the erosion can be prevented. Then, the temp. in the stave cooler is generally at higher temp. in the outer peripheral part than that in the center part and further, at higher temp. in the corner part. Under the temp. condition, etc., in metallurgical furnace, in the case of being the portion whose corosion is considered as the problem only at the corner part, the copper-made member may be disposed only at the corner part, and in this method, it can be avoided to excessively strengthen the cooling.

3. 发明专利

JP2000119712A METHOD FOR CHARGING RAW MATERIAL AT FURNACE COOLING TIME OF BELL BLAST FURNACE 失效
公开(公告)号：JP2000119712A
公开(公告)日：2000-04-25
申请号：JP29246998
申请日：1998-10-14
申请人： NIPPON KOKAN KK
发明人： GOCHO MAKOTO , WATANABE YOSHINORI , IINO BUNGO
IPC分类号： C21B5/00 , C21B7/18
摘要： PROBLEM TO BE SOLVED: To prevent the lowering of a stock line at opened tuyere side and to prevent the aggravation of furnace condition and the breakage of equipment caused by blowoff, etc., by opening a few of tuyeres at the furnace cooling time, opening adjacent tuyeres in order and also, using raw material having low heap angle. SOLUTION: At the furnace cooling time of a blast furnace, a few of tuyeres are opened to start the operation. The adjacent tuyeres are opened in order and finally, the whole tuyeres are opened to continue the operation. At this time, as the raw material to be charged, the raw material having low heap angle, such as pellet, is used to prevent the lowering of the stock line. The charge of the raw material 20 is conducted by using a swing hopper 22, etc. Under state of stopping the swing hopper 22, the raw material 20 is received through a charging belt conveyor 21. The swing hopper 22 is swung to a prescribed position and the raw material 20 is shifted to the direction desirable to charge and successively, a bell is opened to charge the raw material to the prescribed position. In this way, the raw material is charged to an arbitrary position in the circular direction in the furnace to prevent the lowering of the stock line.

4. 发明专利

JPH05196368A IGNITION FURNACE FOR SINTERING AND OPERATION METHOD THEREOF 失效
公开(公告)号：JPH05196368A
公开(公告)日：1993-08-06
申请号：JP721692
申请日：1992-01-20
申请人： NIPPON KOKAN KK
发明人： FUKUYO HIROSHI , HATTORI MICHINORI , IINO BUNGO
IPC分类号： C22B1/20 , F27B21/08 , F27B21/14
摘要： PURPOSE:To provide an ignition furnace for sintering and an operating method therefor in which an amount of used fuel is reduced and sintered ore is produced with a high yield. CONSTITUTION:An ignition furnace for sintering having a pallet 11 for conveying a sintering raw material 13 and a combustion burner 20 through which a combustion flame 21 is brought into collision with the sintering raw material on the pallet 11 is prepared. A relation between a fuel using amount and the air-fuel ratio of the combustion burner 20 and the position, where ignition of the sintering raw material is optimized, of the combustion flame 21 formed by the combustion burner 20 and a relation with the width of the combustion flame 21 in the position are determined. An amount of fuel used in the burner 20 is controlled according to the moving speed of the pallet 11 such that a fuel feed amount per a unit area of the pallet 11 is adjusted to a constant value and from the amount of used fuel, the angle and the height of the burner 20 are controlled based on the relation.

5. 发明专利

JPH05117733A TUYERE FOR BLAST FURNACE 失效
公开(公告)号：JPH05117733A
公开(公告)日：1993-05-14
申请号：JP30981291
申请日：1991-10-29
申请人： NIPPON KOKAN KK
发明人： FURUKAWA TAKESHI , MATSUURA MASAHIRO , IINO BUNGO , SHIMOMURA AKIO
IPC分类号： C21B5/00 , C21B7/16
摘要： PURPOSE:To provide a tuyere for blast furnace, by which the gas ventilation and the liquid permeability at the peripheral part of a raceway are improved by positively burning close shell formed at the above part and coke retained at the above part and if necessary, the thermal condition at the furnace core part can be controlled by blowing the auxiliary fuel in the furnace. CONSTITUTION:In the tuyere 5 for blowing a hot blast into the blast furnace in order to heat and melt the charged material into the blast furnace, at least one piece of an auxiliary blowing hole 6 is arranged to a barrel part of the tuyere 5 and the hot blast and if necessary, the auxiliary fuel is blown into the blast furnace from the auxiliary blowing hole 6.

6. 发明专利

JPH0517809A HEARTH DESULFURIZATION METHOD FOR BLAST FURNACE 失效
公开(公告)号：JPH0517809A
公开(公告)日：1993-01-26
申请号：JP26854591
申请日：1991-09-20
申请人： NIPPON KOKAN KK
发明人： ITO HARUO , OKOCHI IWAO , IINO BUNGO
IPC分类号： C21C1/02
摘要： PURPOSE:To enhance the desulfurization efficiency in a pretreatment of molten iron. CONSTITUTION:A desulfurizing agent is blown by a blowing lance 7 into the desulfurization 1 which is tapped from a blast furnace, falls from a molten iron trough 2 and is poured into a molten iron ladle 5. The desulfurization efficiency of the molten iron 1 is improved by utilizing the stirring force of the molten iron dropped and poured into the molten iron ladle 5 in this way.

7. 发明专利

JPS6187806A Feeder for pipe for oxygen hole opening of blast furnace tap hole 失效
标题翻译：用于管道的进料器用于开孔的BLAST FURNACE TAP孔
公开(公告)号：JPS6187806A
公开(公告)日：1986-05-06
申请号：JP20798084
申请日：1984-10-05
申请人： Nippon Kokan Kk
发明人： SHINTANI NAOMICHI , SHIBATA MICHIYASU , IINO BUNGO , AMANO MASARU , KARIYASU TAKAHIRO
IPC分类号： C21B7/12
CPC分类号： C21B7/12
摘要： PURPOSE:To feed mechanically and automatically a pipe for oxygen hole opening into a tap hole by inserting the pipe between a driving roller and driven roller, grasping the pipe by the pressure of the driven roller and turning the driving roller thereby feeding the pipe into the tap hole. CONSTITUTION:A stand 1 is installed near the tap hole of the blast furnace and the pipe 15 for oxygen hole opening is inserted between the driving roller 2 and the driven roller 7 in a casing 8 via guide rollers 18. A screw bar 10 is rotated to press a bracket 6 by a spring 11 (by a cylinder 14 if necessary) so that the pipe 15 is strongly grasped by the driven roller 7 and the driving roller 2. The roller 2 is then rotated to insert automatically the pipe 15 via a guide pipe 17 into the tap hole to be subjected to oxygen hole opening. Oxygen is supplied from a hose connected to the rear end of the pipe 15 into the pipe and the tap hole is opened by the oxidation heat. The inside of the casing 8 is cooled by supplying air from a nozzle 20.
摘要翻译：目的：通过将管道插入驱动辊和从动辊之间，机械自动进给氧气孔开口的管道，通过从动辊的压力抓住管道并转动驱动辊，从而将管道送入水龙头孔。构成：在高炉的排气孔附近安装支架1，并且通过引导辊18将壳体8中的用于氧气孔开口的管15插入驱动辊2和从动辊7之间。螺杆10旋转通过弹簧11（如果需要通过气缸14）按压支架6，以便由从动辊7和驱动辊2强力地抓住管子15，然后使辊子2旋转以自动地插入管子15，经由引导管17进入要进行氧孔打开的抽头孔。氧气从连接到管15的后端的软管供给到管中，并且通过氧化热打开排出孔。通过从喷嘴20供给空气来冷却壳体8的内部。

8. 发明专利

JPS60152607A MACHINE FOR EXCHANGING DRILL AND METALLIC ROD FOR MACHINE FOR PIERCING TAP HOLE IN BLAST FURNACE 失效
公开(公告)号：JPS60152607A
公开(公告)日：1985-08-10
申请号：JP701884
申请日：1984-01-20
申请人： NIPPON KOKAN KK , MAZDA MOTOR
发明人： IKEDA MINORU , SHINTANI NAOMICHI , SHIBATA MICHIYASU , SHIYUDOU KOUHEI , SAKURAI SABUROU , KURIHARA TAIZOU , IINO BUNGO
IPC分类号： C21B7/12
摘要： PURPOSE:To improve the safety of a worker and the efficiency of work by installing a drill holder, a metallic rod skid and a device for picking a drill out of the holder and a metallic rod out of the skid so that the attachment of a drill and a metallic rod to a machine for piercing a tap hole and the detachment of them can be mechanized. CONSTITUTION:A machine for exchanging a drill and a metallic rod for a machine for piercing a tap hole in a blast furnace is composed of a drill holder 2, a metallic rod skid 3, a device 4 for picking a drill 20 out of the holder 2 and a metallic rod 30 out of the skid 3, a device 5 for attaching and detaching a drill and a metallic rod, and a device 6 for recovering an old metallic rod. The device 5 is composed of plural feed devices 510 each having grips 500 for gripping a drill 20 and a metallic rod 30 and capable of sliding in a direction perpendicular to their axes, an inserting device for moving a drill 20 and a metallic rod 30, and a lifter 530 for lifting the inserting device and the devices 510 up or down.

9. 发明专利

JP2000119718A METHOD FOR DETECTING AND PREVENTING NATURAL OPENING OF TUYERE IN BLAST FURNACE 失效
公开(公告)号：JP2000119718A
公开(公告)日：2000-04-25
申请号：JP29248098
申请日：1998-10-14
申请人： NIPPON KOKAN KK
发明人： GOCHO MAKOTO , WATANABE YOSHINORI , SHIMOGORYO SHINICHI , IINO BUNGO
IPC分类号： C21B7/16
摘要： PROBLEM TO BE SOLVED: To detect the crack of clay packed in a tuyere in the small crack stage, to quickly repair the crack and to prevent the natural opening of the tuyere by measuring the temp. at the outside of a portion which is not water-cooled at the upstream part of the tuyere and detecting the development of the leaked blasting from the difference between the measured temp. and the atmospheric temp. SOLUTION: The temp. of the outside of the portion at the upstream part of the tuyere which is not water-cooled, is measured and the temp. difference between the measured temp. and the atmospheric temp., is obtd. to detect the development of the leaked blasting in the tuyere at the initial stage. That is, in the case of developing no leaked blasting, since the hot blasting is entirely not made to flow in the inner part of the portion at the upstream part, the measured temp. is almost equal to the atmospheric temp. In the case of developing the leaked blasting even in a little, since the hot blasting at about 120 deg. is passed through the inner part of the tuyere, the measured temp. is remarkably raised. In the case of detecting the development of the leaked blasting, refractory is spread onto the surface of the clay packed in the front end part of the tuyere and the crack is repaired to prevent the natural opening of the tuyere.

10. 发明专利

JP2565040B2 失效
公开(公告)号：JP2565040B2
公开(公告)日：1996-12-18
申请号：JP30981291
申请日：1991-10-29
申请人： NIPPON KOKAN KK
发明人： FURUKAWA TAKESHI , MATSURA MASAHIRO , IINO BUNGO , SHIMOMURA AKIO
IPC分类号： C21B5/00 , C21B7/16

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