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1. 发明专利

JP2013072090A Method for operating converter, magnesia carbon brick used in the converter, method for manufacturing the brick, and lining structure of the converter 有权
标题翻译：转换器使用的转换器方法，转炉中使用的镁碳砖，制造砖的方法和转炉的内部结构
公开(公告)号：JP2013072090A
公开(公告)日：2013-04-22
申请号：JP2011209495
申请日：2011-09-26
申请人： Kurosaki Harima Corp , 黒崎播磨株式会社 , Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： TANAKA MASAHITO , YOSHITOMI TAKENORI , HANAGIRI SEIJI , UMEDA SHINGO , TAMURA YOSHIHIRO , SATO MASAHARU , NAKAMURA HISASHI , TAKEUCHI TOMOHIDE , MATSUI TAKESHI , TAKEUCHI KAZUHIKO
IPC分类号： C21C5/36 , C04B35/043 , C04B35/63 , C21C5/44
摘要： PROBLEM TO BE SOLVED: To prevent deformation of a steel shell and to improve refining efficiency in a converter used in an iron-making process, to cope with environmental issues and resource depletion issues concerning graphite, and to improve corrosion resistance of a magnesium carbon brick.SOLUTION: In a method for operating the converter, the magnesia carbon brick is used as a part of or the entire lining brick, wherein the mass ratio of magnesia particles with a particle size of ≥1 mm to magnesia particles with a particle size of
摘要翻译：要解决的问题：为了防止钢壳的变形并提高炼铁工艺中使用的转炉中的精炼效率，以应对有关石墨的环境问题和资源耗尽问题，并提高一氧化碳的耐腐蚀性镁碳砖。解决方案：在用于操作转炉的方法中，将氧化镁碳砖用作整个衬砌砖的一部分或全部，其中颗粒尺寸≥1mm的氧化镁颗粒的质量比与具有颗粒的氧化镁颗粒耐火原料化合物的尺寸<1mm为1.27〜2.58，石墨为氧化镁和石墨总量的≤10质量％。这里，转炉的运转使得在吹炼结束时转炉内炉渣中CaO与SiO 2 的质量比（C / S）≥2.0，氧化铁炉渣中Fe（Fe）计算出的含量为≥12质量％。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012036064A Alumina-carbon unfired brick for lining molten metal holding furnace, method for producing the same, and furnace equipment and construction method using the same 有权
标题翻译：用于内衬金属保持炉的氧化铝碳纤维砖及其制造方法及其设备及使用其的构造方法
公开(公告)号：JP2012036064A
公开(公告)日：2012-02-23
申请号：JP2010180344
申请日：2010-08-11
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： MISHIMA MASAAKI , HOKII TOSHIYUKI , WAKITA TAMOTSU , KONO KOJI , IMAGAWA HIROSHI , MATSUI TAKESHI
IPC分类号： C04B35/103 , B22D41/02
摘要： PROBLEM TO BE SOLVED: To inhibit a hydration reaction in a spinel added alumina-carbon unfired brick, to enhance corrosion resistance to various slags and hot strength, and to improve thermal conductivity maintaining characteristics so as to reduce heat loss by release from a molten metal holding furnace.SOLUTION: The alumina-carbon unfired brick for lining a molten metal holding furnace is provided which is obtained by adding an organic binder to a refractory raw material composition consisting of 6-25 mass% of a carbon raw material, 0.1-4 mass% of aluminum and/or aluminum alloy, 2-20 mass% of a spinel ultrafine powder and the balance essentially an alumina raw material, kneading these, molding and heat treating at ≤1,000°C. The spinel ultrafine powder in the refractory raw material composition has a particle size of
摘要翻译：要解决的问题：为了抑制添加氧化铝 - 碳未烧结砖的尖晶石中的水合反应，以提高对各种炉渣的耐腐蚀性和热强度，并且提高热导率保持特性，以便通过从熔融金属保温炉。解决方案：提供了一种用于衬里熔融金属保持炉的氧化铝 - 碳未烧砖，其通过将有机粘合剂添加到由6-25质量％的碳原料组成的耐火材料组合物中，0.1-4质量％铝和/或铝合金的质量％，2-20质量％的尖晶石超细粉末，余量基本上为氧化铝原料，将其捏合，成型和热处理在≤1000℃。耐火材料组合物中的尖晶石超细粉末的粒径为<150μm，平均粒径为0.1-50μm，由MgO的25〜50质量％，余量为Al 2 ○ 3 。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2007204316A Method for manufacturing monolithic refractory utilizing used refractory 有权
$Method for manufacturing monolithic refractory utilizing used refractory$
标题翻译：制造使用耐火材料的单晶耐火材料的方法
公开(公告)号：JP2007204316A
公开(公告)日：2007-08-16
申请号：JP2006025033
申请日：2006-02-01
申请人： Kurosaki Harima Corp , Nippon Steel Corp , 新日本製鐵株式会社 , 黒崎播磨株式会社
发明人： INUZUKA TAKAYUKI , HANAGIRI SEIJI , MATSUI TAKESHI , MATSUDA TSUYOSHI , ASO SEIJI , SAKAKI SUMIO , YAMAMOTO SHINSUKE , IKEBE TETSUNORI , MAEKAWA AKIYOSHI , SHIRAMA TOICHI
IPC分类号： C04B35/66
摘要： PROBLEM TO BE SOLVED: To provide a monolithic refractory having good spalling resistance and good corrosion resistance in combination by effectively utilizing a used porous refractory material in recycling refractories. SOLUTION: In a method for manufacturing a monolithic refractory by using a used refractory material obtained by recovering used refractories, crushing them and adjusting their particle size as a part of a composition, a used refractory material obtained by classification which contains MgO in an amount of ≤15 mass% and has an apparent porosity, measured for a particle size of 2-3.35 mm, of 10-30% and pH value after adjusting the particle size of 7-9.5 is mixed at least into a coarse particle region having a particle size of ≥1 mm. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过在回收耐火材料中有效利用所用的多孔耐火材料，提供组合具有良好的耐剥离性和良好的耐腐蚀性的整体耐火材料。解决方案：在通过使用通过回收使用的耐火材料获得的使用的耐火材料，将其粉碎并调整其作为组合物的一部分的粒径的方法来制造单块耐火材料的方法中，将通过分级获得的使用的耐火材料含有MgO 将具有10〜30％的粒径，测定的表观孔隙率为≤15质量％，调整粒径为7〜9.5的pH值至少混入粗粒子区域具有≥1mm的粒度。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2013112832A Skid post and split block for skid post 有权
标题翻译： SKID POST和SPLIT BLOCK FOR SKID POST
公开(公告)号：JP2013112832A
公开(公告)日：2013-06-10
申请号：JP2011257856
申请日：2011-11-25
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： TSUKIGASE HIROKI , KONO KOJI , MATSUI TAKESHI , UEHARA TAKUO , OTSUBO HIROAKI , ITAKUSU MOTOKUNI , INOUE HIROYUKI
IPC分类号： C21D1/00
摘要： PROBLEM TO BE SOLVED: To make it possible to enhance heat insulation efficiency by reducing the escape of heat to cooling pipes and to prevent crazing and cracking due to thermal stress.SOLUTION: Skid posts 2 arranged in a heating furnace each include a cooling pipe 8 and a fire-resistant heat-insulating means which surrounds the external circumference of the cooling pipe 8 and are characterized in that the fire-resistant heat-insulating means includes a cylindrical block part 6 placed so as to surround the cooling pipe 8 and a heat-insulating layer part 4 disposed between the internal circumferential surface of the cylindrical block part 6 and the external circumferential surface of the cooling pipe 8, the cylindrical block part 6 is composed of a plurality of annular block parts 5 laid upon each other in the longitudinal direction of the cooling pipe 8, and the annular block parts 5 are each constituted by circumferentially joining three or more split blocks 3 through joint parts 9, that annular block parts 5 which adjoin each other in the longitudinal direction of the cooling pipe 8 are arranged in position shifted in the circumferential direction to avoid the superposition of the joints 9 therebetween, and there is an expansion allowance of the annular block parts between the annular block parts 5 which adjoin each other in the longitudinal direction of the cooling pipe 8.
摘要翻译：要解决的问题：通过减少热量对冷却管的逸出并防止由于热应力引起的裂纹和裂纹，可以提高隔热效率。解决方案：布置在加热炉中的撬杆2包括冷却管8和围绕冷却管8的外周的耐火隔热装置，其特征在于耐火保温装置包括以包围冷却管8的方式放置的圆柱形块部分6和设置在圆柱形块部分6的内圆周表面和冷却管8的外圆周表面之间的隔热层部分4，圆柱形块部分6由在冷却管8的长度方向上相互放置的多个环形块部5构成，环状块部5分别通过连接部9将3个以上的分割块3周向连接起来，在冷却管8的长度方向上彼此相邻的环状块部5被配置成沿圆周方向位置偏移以避免s 在它们之间的接合部9的上部，并且在冷却管8的长度方向上彼此相邻的环状块部5之间存在环状块部的膨胀余量。（C）2013，JPO＆INPIT

5. 发明专利

JP2000309818A SLEEVE REFRACTORY IN STEEL TAPPING HOLE OF CONVERTER FOR STEELMAKING 失效
公开(公告)号：JP2000309818A
公开(公告)日：2000-11-07
申请号：JP11264799
申请日：1999-04-20
申请人： NIPPON STEEL CORP , KUROSAKI HARIMA CORP
发明人： SAITO YOSHITOSHI , KONO KOJI , SAKAMOTO HIROSHI , INUZUKA TAKAYUKI , NAKAMURA HISASHI , KASAHARA HAJIME , NAKAHO MASATERU , MATSUI TAKESHI , SURUGA TOSHIHIRO
IPC分类号： C04B35/043 , C04B35/634 , C04B35/66 , C21C5/46
摘要： PROBLEM TO BE SOLVED: To impart a close structure and high strength at high temp. and an excellent erosion resistance to slag without lowering heat spalling resistance by forming a blended material containing a resin-coated magnesia grain and carbon. SOLUTION: A steel tapping hole sleeve refractory is formed with the blended material containing the resin-coated magnesia grains composed of electromelting clinker, burnt clinker, natural magnesite or the like and, on the magnesia grains, applied with a novolak-resol type phenol resin, and the carbon of natural flake- graphite, artificial graphite or the like. Grain sizes of the magnesia grains are made to 1-5 mm, and the fixed carbon content in the coated-resin is made to >=20 wt.%, and it is desirable to use 0.5-2 pts.wt. of the resin per 100 pts.wt. of the magnesia grains. Further, if necessary, as the other components, Al, Si, Al-Mg, B4C, or the like, can be added.

6. 发明专利

JP2000327403A REFRACTORY FOR BOTTOM BLOWING TUYERE OF STEEL MAKING CONVERTER 失效
公开(公告)号：JP2000327403A
公开(公告)日：2000-11-28
申请号：JP14212699
申请日：1999-05-21
申请人： NIPPON STEEL CORP , KUROSAKI HARIMA CORP
发明人： SAITO YOSHITOSHI , KONO KOJI , SAKAMOTO HIROSHI , INUZUKA TAKAYUKI , NAKAMURA HISASHI , KASAHARA HAJIME , NAKAHO MASATERU , MATSUI TAKESHI , SURUGA TOSHIHIRO
IPC分类号： C04B35/043 , C21C5/48
摘要： PROBLEM TO BE SOLVED: To obtain refractory having dense structure in the whole temp. region of the use environment and high in strength and excellent in slag erosion resistance by forming a blended material containing resin coated magnesia particles, magnesia particles and carbon. SOLUTION: It is preferable that the magnesia particle is added at need to improve the strength and the content is desirably 20-75 wt.%. The content of the carbon is 3-40 wt.%, to which 0.5-10 wt.% metal and 0.2-5 wt.% compound containing boron per carbon are preferably added. As the resin to be applied, novolak and a resol type phenolic resin are used and the resin is applied by kneading the magnesia particle with the resin to be applied. The size of the magnesia particle of the resin coated magnesia particle is 1-10 mm, the quantity of the fixed carbon in the resin to be applied is 15-50 wt.% and the quantity of the resin is preferably 0.5-2 wt.% per 100 pts.wt. magnesia particle. The change of strength and elastic modulus in the environment, where rapid heating- quenching is repeated, is remarkably reduced.

7. 发明专利

JP2001261456A MONOLITHIC REFRACTORY MATERIAL HAVING CLOSE-PACKED STRUCTURE EXCELLENT IN STRENGTH AND SPALLING RESISTANCE 失效
公开(公告)号：JP2001261456A
公开(公告)日：2001-09-26
申请号：JP2000082940
申请日：2000-03-23
申请人： NIPPON STEEL CORP , KUROSAKI HARIMA CORP
发明人： SHINPO AKIHIRO , MATSUI TAKESHI , ISOBE TOSHIHIRO , KAMIO HIDETOSHI
IPC分类号： C04B28/06 , C04B35/66 , F27D1/00 , F27D1/10 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To obtain a monolithic refractory material having a close-packed structure, in the base material of which crack initiation/extension can be inhibited from being caused and also which has improved strength and spalling resistance. SOLUTION: In this monolithic refractory material containing alumina, when fire-resistant aggregate grains excluding coarse grains each having a >=10 mm grain size are classified into plural grain groups each having a different grain size range from those of the other, on the basis of the grain size distribution of the fire-resistant aggregate grains excluding the coarse grains, the volume mix proportion of these grain groups is determined so as to meet the Andreasen distribution formula P=100(X/D)n (wherein: D is the maximum grain size; P is a ratio (%) of grains each having a

8. 发明专利

JP2001253781A MONOLITHIC REFRACTORIES FOR WETTING PART OF LADLE FOR MOLTEN STEEL 失效
公开(公告)号：JP2001253781A
公开(公告)日：2001-09-18
申请号：JP2000063607
申请日：2000-03-08
申请人： KUROSAKI HARIMA CORP , NIPPON STEEL CORP
发明人： SHINPO AKIHIRO , MATSUI TAKESHI , ISOBE TOSHIHIRO , KAMIO HIDETOSHI
IPC分类号： C04B28/06 , C04B35/66 , C21C5/46 , F27D1/00 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To impart a sufficient load softening characteristic to refractories of alumina-magnesia wetting parts without impairing the denseness of a structure possessed by the alumina-magnesia. SOLUTION: 1. The monolithic refractories for the wetting parts of a ladle for molten steel which are prepared by adding alumina cement and a dispersant to 100 mass % refractory aggregate consisting of 3 to 15 mass % magnesia, 0 to 2 mass % volatile silica and the balance alumina as chief materials and consisting of 10 to 80 mass % of alumina round particles at a ratio occupying in 100 mass % refractory aggregate in the alumina. 2. The monolithic refractories for the wetting parts of the ladle for molten steel as stated in 1 in which the monolithic refractories are previously formed to a block shape by casting 3. The monolithic refractories for the wetting parts of the ladle for molten steel as stated in 1 or 2, in which the load softening point is 1,400 to 1,600 deg.C in T2 (the point compressed to 2% of the initial height of a test piece from the maximum point T1 at a softening curve) in the value measured by a testing method complying with JIS-R 2209.

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