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1. 发明专利

JPS5573811A KILLING AGENT FOR CONVERTER SLAG 失效
公开(公告)号：JPS5573811A
公开(公告)日：1980-06-03
申请号：JP14497078
申请日：1978-11-25
申请人： NIPPON KOKAN KK , HONDA KK
发明人： HASEGAWA TERUYUKI , NAKAGAWA MASAYOSHI , FUNANOGAWA HIROSHI , ISHIBASHI TAKEMUNE , SUZUKI SHIGEYOSHI , NISHINO HITOSHI , MIYAKE KOUICHI
IPC分类号： C21C5/28 , C21C5/36
摘要： PURPOSE:The captioned additive which is obtainable by mixing steel making air crushing slag to sawdust and press molding the mixture and which is free from shape collapsion during transport and is superior in acting effect. CONSTITUTION:When air crushing slag 20-40% obtainable by blowing air to steel making slag such as converter molten slag is mixed in sawdust and the mixture is press molded, the additive which is high in bulk density, burns by reaching deep into the molten slag, produces sufficient CO2 gas and exhibit killing effect is obtained. Since it is superior in breakdown resistance, it does not cause shape collapsion and dusting, thus permitting good maintenance of working environment.

2. 发明专利

JPS5847646B2 JPS5847646B2 - 失效
公开(公告)号：JPS5847646B2
公开(公告)日：1983-10-24
申请号：JP14784178
申请日：1978-12-01
申请人： Mitsubishi Jukogyo Kk , Nippon Kokan Kk
发明人： NAKAHARA TAKAFUMI , FUJIWARA MAKOTO , SATO NOBUO , TAGUCHI KYOMI , FUNANOGAWA HIROSHI
IPC分类号： C21B3/06 , C21B3/08 , G01F1/74
CPC分类号： Y02W30/543

3. 发明专利

JPS558458A PREVENTING METHOD FOR ADHESION OF SLAG* RAW METAL* OR THE LIKE IN SLAG LADLE 失效
公开(公告)号：JPS558458A
公开(公告)日：1980-01-22
申请号：JP8086178
申请日：1978-07-05
申请人： NIPPON KOKAN KK
发明人： TAGUCHI KIYOMI , FUNANOGAWA HIROSHI , NAKAMURA TOSHIHIDE
IPC分类号： C21B3/10
摘要： PURPOSE:To prevent the adhesion of raw metal included in the molten slag upon the inner surface of the ladle, and to improve the descaling property at the slagging off into the ladle, by previously laying the necessary amount of air-pulverized conventer slag as the flooring material in the slag ladle, and then, by tapping the molten slag, etc., into the ladle. CONSTITUTION:The air-pulverized converter slag 5 is laid as the flooring material on the bottom 1a of the slag ladle 1; and the molten slag 4 is poured. Since the air- pulverized converter slag 5 is the spherical fine particle, its angle of repose is so low as about 15 degrees, therefore, even in case of generating the cracks 3 in the bottom 1a, the cracks 3 are perfectly filled up by the air-pulverized converter slag 5. As a result, the bottom 1a is almost uniformly covered by the slag 5, so that the penetration of the molten slag 4 inyo the cracks 3 is prevented, and the adhesion of raw metal does not cause. According to this method, the dusting at the molten slag tapping work, is diminished, and the danger of explosion can be avoided.

4. 发明专利

JPS5541922A MANUFACTURE OF SINTERED ORE 失效
公开(公告)号：JPS5541922A
公开(公告)日：1980-03-25
申请号：JP11356678
申请日：1978-09-18
申请人： NIPPON KOKAN KK
发明人： FUNANOGAWA HIROSHI , WADA TSUTOMU , OOZEKI SHIYOUICHIROU , ONO SHIGEYUKI
IPC分类号： C22B1/16
摘要： PURPOSE:To manufacture sintered ore with high productivity while preventing occurrence of an environmental pollution problem, etc. by adding fine grain slag obtd. by air-pulverizing molten converter slag to sintering blended raw material followed by sintering. CONSTITUTION:Molten converter slag is let to flow at a constant flow rate and scattered with a high speed air current of a fixed vol. spouted from a nozzle at a constant speed. The scattered slag is spheroidized and solidified during flying to be converted into air-pulverized converter slag having an average grain diameter of about 1.5mm and sufficient strength. This slag is added to bedding powder, return ore, lime, etc., and the blended raw material is charged into the pallet of a sintering machine and sintered.

5. 发明专利

JPS5534604A HOT IRON TREATING METHOD 失效
公开(公告)号：JPS5534604A
公开(公告)日：1980-03-11
申请号：JP10483278
申请日：1978-08-30
申请人： NIPPON KOKAN KK
发明人： TAGUCHI KIYOMI , FUNANOGAWA HIROSHI
IPC分类号： C21C1/02
摘要： PURPOSE:To remove desulfurization slag without lowering the yield of hot iron and to keep the iron hot at a low cost by using air-pulverized converter slag after desulfurizing hot iron in a hot iron ladle. CONSTITUTION:Hot iron is received in a hot iron ladle from a blast furnace, and CaC2 as a desulfurizing agent is added to the iron and agitated to desulfurize the iron. Since desulfurization slag formed contains much S and deteriorates the quality of steel owing to resulfurization when fed into a converter together with the hot iron, it is required to remove the slag as thoroughly as possible. In order to remove the slag, air-pulverized converter slag is charged into the ladle aggregate the molten desulfurization slag, and the aggregated slag is removed from the hot iron in the ladle. The surface of the hot iron is convered with the converter slag in place of perlite, chaff or the like to keep the iron hot until it is charged into a converter.

6. 发明专利

JPS5521546A MOLTEN SLAG PROCESSING DEVICE 失效
公开(公告)号：JPS5521546A
公开(公告)日：1980-02-15
申请号：JP9367878
申请日：1978-08-02
申请人： MITSUBISHI HEAVY IND LTD , NIPPON KOKAN KK
发明人： TOUKO YOSHIAKI , TAGUCHI KIYOMI , FUNANOGAWA HIROSHI
IPC分类号： F27D15/00 , B01J2/02 , C21B3/08 , F27D15/02 , F27D17/00
摘要： PURPOSE:To provide the subject device wherein granulated molten slag is cooled with air injected along several-stage inclined bed surfaces, and carried to a cyclone by accompanying air and separated, and thereafter heated air is passed through a heat exchanger, thereby to granulate molten slag and effectively recover the heat thereof. CONSTITUTION:High-temperature molten slag 2 is caused to flow continuously from a molten slag introducing through 1, and, at the same time, air is injected from an air injection nozzle 4 to render the slag 2 into granular slags 5 having a grain size of 0.5 to 2.0mmphi. The slags 5 fly within the main body 6 of a hood and tends to fall on a floor surface 6b, and quenched with a cool air stream from a plurality of air injection ports 7, being blown to a hopper part 6a along the floor surface 6b and drawn by an suction blower, and introduced into the cyclone and separated. Air which has absorbed the heat from the slags 5 and elevated to a high temperature such as several hundreds degrees is heat-recovered in the heat exchanger behind the cyclone and exhausted through the suction blower.

7. 发明专利

JPS54126609A LOADING METHOD FOR SLIDING OPENNCLOSE MECHANISM OF CONVERTER TAP HOLE 失效
公开(公告)号：JPS54126609A
公开(公告)日：1979-10-02
申请号：JP3404778
申请日：1978-03-27
申请人： NIPPON KOKAN KK
发明人： KATAYAMA HEITA , HIROSE TAKESHI , MATSUDA YASUHIRO , FUNANOGAWA HIROSHI
IPC分类号： C21C5/46
摘要： PURPOSE:To repair a sliding open-close mechanism, an upper nozzle, sleeve bricks in a short time and at excellent adjustment preciseness, by inserting, in replacement and repair of a sliding open-close mechanism, an upper nozzle, and sleeve bricks of a converter tap hole, a steel pipe of an outer diameter equal to that of the tap hole into the sliding open-close mechanism, so as to fit into the hole sleeve. CONSTITUTION:Damaged sliding open-close mechanism 5 of a converter tap hole is removed. Then only the fused upper nozzle 3 is removed, sleeve bricks being left as it is. A new upper nozzle 3 is arranged at the fixed plate 6 side of a new sliding open-close mechanism 5. A steel pipe 11 on a diameter equal to that of the tap hole is inserted into the tap hole of the new mechanism 5 and the upper nozzle 3 so as to integrate the mechanism 5 with the upper nozzle 3. The insertion and loading of the pipe 11 is carried out so that the upper nozzle 3 may come into contact with the rear end of the sleeve bricks, than a kneaded material 10 is poured into the gap between the steel pipe 11 and the sleeve bricks in order to joint them. After completion of the operation, the steel pipe is drawn off, kneaded material is poured into the gap between the sleeve 2 and the upper nozzle 3, thus completing the replacement and repair.

8. 发明专利

JPS6039730B2 失效
公开(公告)号：JPS6039730B2
公开(公告)日：1985-09-07
申请号：JP2498578
申请日：1978-03-07
申请人： NIPPON KOKAN KK
发明人： KATAYAMA HEITA , FUNANOGAWA HIROSHI , MATSUDA YASUHIRO , NOZAWA SENKICHI , MYATA MUTSUE
IPC分类号： B22D37/00 , B22D41/30 , C21C5/44 , C21C5/46

9. 发明专利

JPS552739A STOPPER FOR SPRUE IN CONVERTER 失效
公开(公告)号：JPS552739A
公开(公告)日：1980-01-10
申请号：JP7466978
申请日：1978-06-20
申请人： NIPPON KOKAN KK , SUZUKI GIKEN KOGYO KK
发明人： MATSUO MASAHIRO , KANETANI GENJI , SATOU HIDEKI , FUNANOGAWA HIROSHI , SUZUKI TSUNEO
IPC分类号： C21C5/46
摘要： PURPOSE:To rapidly stop the effluent of the slag at the end stage of the tapping work for the molten steel, by supporting the sprue stopping plug of the converter using the support bracket, and by inserting the plug into the molten steel in the converter, and by bringing down the plug using the hydraulic cylinder. CONSTITUTION:In case of tapping the molten steel out of the tapping hole 39 of the converter 11, the effluent of the slag at the end stage of effluent of molten steel is to be rapidly stopped; for this purpose, the plug is used for stopping the tapping hole 39 without setting up the converter. Hereupon, the turning arm 8 is horizontally freely rotatably attached to the upper and lower parts 4 installed in the staionary frame 1 so as to be freely elevating. The saddle 13 is attached to the turning arm 8 so as to be freely movable in the direction of length of the turning arm 8, and also, the support arm 16 is vertically freely rotatably attached to the saddle 13; in which, the tip of the support arm 16 is provided with the support bracket 42 for vertically freely movably supporting the support rod 41 for supporting the stopping plug for the tapping hole 39 of the converter 11. When the slag begins to flow out of the tapping hole 39, the support arm 16 is instantaneously turned downward by the hydraulic cylinder 18, and the plug rapidly closes the tapping hole 39.

10. 发明专利

JPS54149234A Thaw promoting method 失效
标题翻译：推广方法
公开(公告)号：JPS54149234A
公开(公告)日：1979-11-22
申请号：JP5615878
申请日：1978-05-13
申请人： Nippon Kokan Kk
发明人： TOKUNAGA TOSHIMI , FUNANOGAWA HIROSHI , IMAI RIYOUICHI
IPC分类号： C09K3/18 , E01H5/10

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