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1. 发明专利

JP2010242148A Method of inhibiting slag adhesion to refining vessel refractory 有权
$Method of inhibiting slag adhesion to refining vessel refractory$
标题翻译：抑制SLAC粘附精炼船用耐火材料的方法
公开(公告)号：JP2010242148A
公开(公告)日：2010-10-28
申请号：JP2009090951
申请日：2009-04-03
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： WATANABE KUNIHIKO , YAMAMOTO SEIJI , TAKAHASHI KIYOSHI
IPC分类号： C21C1/02 , C21C7/00 , C21C7/04 , C21C7/064 , C21C7/072 , C21C7/076 , C21C7/10
CPC分类号： Y02P10/242
摘要： PROBLEM TO BE SOLVED: To provide a method of inhibiting slag adhesion to a refining vessel refractory occurring when performing refining treatment of molten metal using a refining agent containing no fluorine. SOLUTION: The method of inhibiting slag adhesion to the refining vessel refractory is characterized in that soda-lime glass is added into a refining vessel prior to or concurrently with the refining treatment of molten metal using the refining agent containing no fluorine. The refining treatment of molten metal is desulfurization treatment of molten iron and when a desulfurizing agent containing CaO, metallic Mg, MgO, burnt dolomite and Al dross is used as the refining agent containing no fluorine, the method exhibits the excellent effect. The refining treatment is any one of molten pig iron desulfurization treatment of a KR (Kanbara Reactor) process, torpedo-car molten pig iron desulfurization treatment, desulfurization treatment by injection of powder to the molten steel and molten steel vacuum degassing treatment. It is desirable that the addition quantity of the soda-lime glass is controlled to be 0.5-5 kg/ton of the molten metal. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种在使用不含氟的精制剂进行熔融金属精炼处理时发生的对精炼容器耐火材料的渣附着抑制的方法。解决方案：对精炼容器耐火材料的渣附着力的方法的特征在于，在使用不含氟的精炼剂的熔融金属的精炼处理之前或同时，将钠钙玻璃加入到精炼容器中。熔融金属的精炼处理是铁水的脱硫处理，使用含有CaO，金属Mg，MgO，烧白云石和Al渣的脱硫剂作为不含氟的精制剂时，效果优异。精炼处理是KR（Kanbara反应器）方法的熔融生铁脱硫处理，鱼雷铁水脱铁处理，通过向钢水注入粉末的脱硫处理和钢水真空脱气处理中的任何一种。希望将钠钙玻璃的添加量调节为熔融金属的0.5-5kg /吨。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2008138253A Desulfurization refining agent for molten pig iron, and desulfurization method 有权
标题翻译：用于硬质铁的脱硫精炼剂和脱硫方法
公开(公告)号：JP2008138253A
公开(公告)日：2008-06-19
申请号：JP2006325584
申请日：2006-12-01
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMADA WATARU , HARASHIMA KAZUMI , MIYAMOTO KOICHI , TAKAHASHI KIYOSHI
IPC分类号： C21C1/02
摘要： PROBLEM TO BE SOLVED: To provide a desulfurization refining agent for effectively desulfurization-refining molten pig iron without using CaF
2 , in a mechanical stirring type desulfurization treatment for the molten pig iron.
SOLUTION: The desulfurization refining agent to be used in the mechanical stirring type desulfurization treatment for the molten pig iron includes granular iron in an amount of 1.5 to 5.0 mass%, FeO in a concentration of 2 to 7 mass%, and CaO in a concentration of 80 mass% or more. The desulfurization refining agent includes quicklime or a blend of quicklime and steelmaking slag, as a main raw material, and a magnetically separated powder from the steelmaking slag as an additive to the main raw material. This mechanical stirring type desulfurization method includes using the desulfurization refining agent. The desulfurization refining agent contains the granular iron, and accordingly has high density, is entangled in the molten pig iron in an early step of the desulfurization treatment to contribute to the desulfurization reaction and achieves remarkably high desulfurization efficiency in spite of containing no CaF
2 .
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了在熔融生铁的机械搅拌型脱硫处理中提供用于在不使用CaF 2 SBB的情况下有效地脱硫精炼熔融生铁的脱硫精炼剂。解决方案：用于熔融生铁机械搅拌型脱硫处理的脱硫精制剂包括1.5〜5.0质量％的粉末状铁，2〜7质量％的FeO，CaO 浓度为80质量％以上。脱硫精制剂包括生石灰或作为主要原料的生石灰和炼钢渣的混合物，以及作为主要原料的添加剂的来自炼钢渣的磁分离粉末。该机械搅拌型脱硫方法包括使用脱硫精制剂。脱硫精制剂含有粒状铁，因此密度高，在脱硫处理的早期阶段在生铁中缠结，有助于脱硫反应，尽管不含CaF 2 。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2005036263A Material of civil work using waste lime, and method for recycling waste lime 有权
标题翻译：使用废物的公民工作材料和回收废物的方法
公开(公告)号：JP2005036263A
公开(公告)日：2005-02-10
申请号：JP2003198821
申请日：2003-07-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： IBARAKI TETSUJI , IMURA SHOJI , TAKAHASHI KIYOSHI
IPC分类号： B09B3/00 , C04B5/06 , C04B18/14 , C21B3/06
CPC分类号： Y02P10/242 , Y02W30/543 , Y02W30/94
摘要： PROBLEM TO BE SOLVED: To provide a material of civil work manufactured by inexpensively treating a waste lime produced in a furnace such as a refuse incinerator or an industrial furnace, and to provide a method for recycling the waste lime. SOLUTION: The material of civil work using waste lime is produced by supplying the particles of a calcium compound, which have adsorbed chlorine or sulfur oxides existing in a waste gas produced in the furnace, into molten iron or molten slag; mixing them with other oxides to synthesize a composite slag consisting of calcium oxide, silicon oxide and other oxides; and cooling the composite slag. The method for recycling waste lime uses the above process. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供通过廉价处理在诸如垃圾焚烧炉或工业炉的炉中产生的废石制造的民用工作材料，并提供废石灰回收的方法。解决方案：使用废石灰的民用工程材料是通过将存在于炉中产生的废气中的氯或硫氧化物吸附在铁水或熔渣中的钙化合物颗粒，将其与其他氧化物混合，合成由氧化钙，氧化硅等氧化物组成的复合渣; 并冷却复合渣。回收废石灰的方法采用上述方法。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2001248976A IMPELLER FOR AGITATING MOLTEN IRON 失效
公开(公告)号：JP2001248976A
公开(公告)日：2001-09-14
申请号：JP2000059461
申请日：2000-03-03
申请人： NIPPON STEEL CORP
发明人： YAMAUCHI MASAO , KOSEKI TSUNEO , TANIGUCHI GOUKIYO , HATA KEIJI , TAKAHASHI KIYOSHI
IPC分类号： B22D1/00 , C21C1/02 , F27D27/00 , F27D23/04
摘要： PROBLEM TO BE SOLVED: To provide an impeller for agitating a molten iron to prevent an adherence of a slag to an upper surface of the impeller. SOLUTION: The impeller for agitating the molten iron to agitate the molten iron in a container comprises a slag adherence preventing plate having an inclination of 30 to 70 degrees to an upper surface of the impeller or an inclination of 30 to 70 degrees to the upper surface of the impeller itself.

5. 发明专利

JP2001248975A CARBON-CONTAINING REFRACTORIES OF IMPELLER FOR DESULFURIZING MOLTEN IRON 失效
公开(公告)号：JP2001248975A
公开(公告)日：2001-09-14
申请号：JP2000059460
申请日：2000-03-03
申请人： NIPPON STEEL CORP
发明人： TAKAHASHI KIYOSHI , TANIGUCHI GOUKIYO , HATA KEIJI , YAMAUCHI MASAO , KATAOKA ATSUICHIRO
IPC分类号： C21C1/02 , F27D27/00 , F27D23/04
摘要： PROBLEM TO BE SOLVED: To provide an impeller for desulfurizing to prevent an adherence of a slag to an impeller rotary shaft or an impeller. SOLUTION: Carbon-containing refractories of the impeller for desulfurizing a molten iron for agitating the molten iron in a container prevent the adherence of the slag to the impeller rotary shaft or the impeller by using the carbon- containing refractories for the impeller rotary shaft or the impeller.

6. 发明专利

JPH07214292A METHOD FOR REPAIRING TAP HOLE OF VESSEL FOR MOLTEN METAL 失效
公开(公告)号：JPH07214292A
公开(公告)日：1995-08-15
申请号：JP811594
申请日：1994-01-28
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： DATE HIRONORI , MURAKAMI TAKAYUKI , TAKAHASHI KIYOSHI , KOMOTO NOBUHIKO , KOYAKATA KATSUYOSHI , HINA HIROSHI , CHIBA KAZUO , SAKOTA KATSUHIRO , SAWADA SHIGEHISA , SHIRAI TAKEOMI
IPC分类号： B22D41/02 , F27D1/16
摘要： PURPOSE:To easily repair the worn part of the refractories of the tap hole in the upper part of a sliding system to an original exact shape. CONSTITUTION:A cylindrical body 2 made of the refractories is formed perpendicularly in a positioning member having a positioning part on its outside surface coaxially with the inside hole of this positioning member. A repair unit fitted with a cap 14 is used for the top of this cylindrical body 2. This repair unit is inserted into the tap hole of the upper part worn from the outside surface of the vessel bottom toward the inside surface and a repair material made of the refractories is packed into the spacing between the worn tap hole of the upper part and the outside surface of the repair unit. A cap 14 is thereafter ejected down by using a rod or air pressure. The positioning member and cylindrical body which are discretely formed may be joined to each other or both may be formed as an integral unit.

7. 发明专利

JPH05139854A HIGHLY SPALLING-RESISTANT NONFIRED REFRACTORY 失效
公开(公告)号：JPH05139854A
公开(公告)日：1993-06-08
申请号：JP30765091
申请日：1991-11-22
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： SASAKA ISAO , IWASHITA KAZUTOSHI , SATO TAKAYOSHI , TAKAHASHI KIYOSHI
IPC分类号： B22D11/10 , B22D41/54 , C04B35/76
摘要： PURPOSE:To provide the title refractory suitable for highly spalling-resistant nonfired upper nozzles for SN satisfying the requirement for improving both spalling resistance and corrosion resistance associated with multiple continuous casting of molten steel. CONSTITUTION:The objective refractory excellent in spalling resistance, usable many times when applied to upper nozzles for SN, can be obtained by incorporating (A) a mixture of (1) 85-95wt.% of refractory aggregate and (2) 5-15wt.% of an organic binder with (B) 1-10wt.% of Al fiber and/or Al alloy fiber having a diameter of 0.1-2mm and length of 5-50mm produced by chatter vibration cutting.

8. 发明专利

JPH07126734A SLAG CUT BALL 失效
公开(公告)号：JPH07126734A
公开(公告)日：1995-05-16
申请号：JP27187693
申请日：1993-10-29
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： TACHIKAWA AKIHIRO , TAWARA KATSUHIKO , AMO HIROTO , YAMAGUCHI TOMOKI , IWAMA SHIGEO , TAKAHASHI KIYOSHI
IPC分类号： F27D3/14 , C21C5/46
摘要： PURPOSE:To improve a slag cut effect by prevention of failure at the time of use and an increase in bulk sp. gr. by limiting the content of the alumina cement of castable refractories for covering the outside surfaces of arbors. CONSTITUTION:The balls are constituted by limiting the content ratio of the alumina cement in the sheath refractories to 1 to 9wt.%. As a result, the water of crystallization contained in the refractories is made less than in the conventional refractories and the bulk sp. gr. of the balls is increased. Then, the balls are held in a sunk state without generating the crack and destruction by a rapid temp. change when the balls are charged into the furnace and, therefore, a slag cut rate is improved. The degradation in the hardening strength by a reduction in the content ratio of the alumina cement is sufficiently dealt with addition of 0.1 to 5wt.% superfine powder of silica and 0.01 to 1wt.% dispersant, such as phosphate, carboxylate or silicate of alkaline metals to the refractories.

9. 发明专利

JPH06316716A DEVICE FOR PREVENTING BREAKAGE OF COOLING PLATE IN BLAST FURNACE 失效
公开(公告)号：JPH06316716A
公开(公告)日：1994-11-15
申请号：JP12480193
申请日：1993-04-30
申请人： NIPPON STEEL CORP
发明人： KIMURA HIDETOSHI , TAKAHASHI YASUHIRO , TAKAHASHI KIYOSHI , NIINUMA SHINICHI
IPC分类号： C21B7/10
摘要： PURPOSE:To efficiently and economically prevent or restrain the vaporization of cooling water in the cooling plate and to prevent the breakage of the cooling plate by beforehand detecting a sign of the vaporization in the cooling plate and taking the preventing measure to the breakage of the cooling plate only in the necessary cooling system. CONSTITUTION:A part of the cooling plate 4 is exposed to the inside of the high temp. furnace 1 of a blast furnace caused by wearing of the furnace wall 11 and the temp. of the cooling water is raised. This condition can be confirmed by the sign phenomenon of the vaporization, by clouding phenomenon due to the generation of bubbles in the cooling water by visually checking the condition of drainage 5 in the cooling water for cooling plate. At the time of condirming this condition, immediately, e.g. a three-way valve 8 as directional change-over valve is manually operated, and a water supplying source is changed over into a high pressure water pipe 7 which has an original pressure higher than the pressure loss due to gas-liquid two phase flow in the cooling plate 4 and a supplying/draining water piping 3 system. By this method, the generation of the vaporization of the cooling water in cooling plate is prevented from happening or the vaporizing phenomenon after its occurring can be restrained and the breakage of the cooling plate can be prevented.

10. 发明专利

JPS5828979A GAS BLOWN REFRACTORY TO MOLTEN METAL AND ITS MANUFACTURE 失效
公开(公告)号：JPS5828979A
公开(公告)日：1983-02-21
申请号：JP12785081
申请日：1981-08-17
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO , KUROSAKI ROZAI KK
发明人： TAKAHASHI KIYOSHI , KANENAE MASATOKI , OOISHI TAKAO , KUWABARA REIJIROU , KASAI HIROSHI , KOYAMA TAKESHI
IPC分类号： F27D3/16 , C21C7/072 , C22B9/05 , F27D1/00

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