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

JPH03257087A PRODUCTION OF ORNAMENTAL FIRED ARTICLE 失效
公开(公告)号：JPH03257087A
公开(公告)日：1991-11-15
申请号：JP5237790
申请日：1990-03-02
申请人： INAX CORP , NIPPON STEEL CORP
发明人： MORIOKA TOSHIMICHI , HIRANO YASUHISA , IWAHASHI AKIRA , MATSUO MASATAKA , KURAYOSHI KAZUMI , ISHII AKIO
IPC分类号： C04B41/86 , C04B41/80 , C04B41/89
摘要： PURPOSE:To obtain the ornamental fired article having a beautiful ornamental layer due to reduction coloration and excellent in chemical resistance by providing an uncolored layer contg. a reduction-coloring component on the surface of a base, applying a light-transmissive chemical-resistant protective film-forming material, firing the material and then blowing a reducing gas against the fired material. CONSTITUTION:A glaze (e.g. a preparation of feldspar, quartz sand, zinc white, copper oxide, etc.) having a reduction-coloring component is applied on the surface of a tile base 12 to form an uncolored ornamental layer 10. A light- transmissive chemical-resistant protective film forming material 14 (e.g. a mixture of transparent frit and Gaerome clay) is then applied on the surface of the ornamental layer 10. The material is colored, a reducing gas generated by a reduction burner 16 is blown against the colored article which is still hot to reduction-color the coloring component of the ornamental layer 10, and an ornamental colored article is obtained. Since the obtained article has the chemical-resistant protective film 14, the article is not discolored or faded even when washed with a detergent.

2. 发明专利

JPH03257086A SURFACE TREATMENT OF FIRED BODY 失效
公开(公告)号：JPH03257086A
公开(公告)日：1991-11-15
申请号：JP5237890
申请日：1990-03-02
申请人： INAX CORP , NIPPON STEEL CORP
发明人： ISHIDA HIDEKI , MORIOKA TOSHIMICHI , HIRANO YASUHISA , IWAHASHI AKIRA , MATSUO MASATAKA , KURAYOSHI KAZUMI , ISHII AKIO
IPC分类号： C04B41/80 , C04B41/86
摘要： PURPOSE:To stably reduction-color the surface of a fired body by blowing a reducing gas contg. gaseous CO as the essential component against the surface of the fired body contg. the metal oxides of Cu, Fe and Ti and which is still hot after firing. CONSTITUTION:A reducing gas consisting of gaseous CO alone or a reducing gas consisting of an inert gas (e.g. N2) contg. >=3% of gaseous CO or a gaseous mixture of CO and H2 is prepared. The reducing gas is blown against the surface of a fired body contg. 0.2-10% of the metal oxides of Cu, Fe and Ti and which is still hot after firing to reform the surface. Consequently, the fired body surface is beautifully reduction-colored in part or in whole. In this case, the reducing gas is preheated to >=500 deg.C and then blown against the fired body surface to cause an excellent reduction reaction, and a stabilized reduction color is obtained.

3. 发明专利

JPH03257085A REDUCTION TREATMENT OF FIRED BODY 失效
公开(公告)号：JPH03257085A
公开(公告)日：1991-11-15
申请号：JP5237590
申请日：1990-03-02
申请人： INAX CORP , NIPPON STEEL CORP
发明人： MORIOKA TOSHIMICHI , HIRANO YASUHISA , IWAHASHI AKIRA , MATSUO MASATAKA , KURAYOSHI KAZUMI , ISHII AKIO
IPC分类号： C04B41/80
摘要： PURPOSE:To stably obtain products having a uniform color developed by reduction by carrying out reduction treatment while preventing the penetration of external atmospheric gas into a reduction treatment part. CONSTITUTION:Bodies 14 to be fired on many rolls 12 arranged parallel to each other are introduced into a continuous firing furnace and fired. The fired bodies 14 are introduced into the rear part of the firing zone and the surface of each of the fired bodies 14 is subjected to reduction treatment by blowing reducing flames from many nozzles of a reducing burner 16. At this time, inert gas fed from a duct 18 is blown into the furnace from plural openings 20 pierced before and behind the burner 16 so as to prevent the penetration of external atmospheric gas into the reduction treatment part.

4. 发明专利

JPH03257084A REDUCTION TREATMENT OF FIRED BODY 失效
公开(公告)号：JPH03257084A
公开(公告)日：1991-11-15
申请号：JP5237490
申请日：1990-03-02
申请人： INAX CORP , NIPPON STEEL CORP
发明人： MORIOKA TOSHIMICHI , HIRANO YASUHISA , IWAHASHI AKIRA , MATSUO MASATAKA , KURAYOSHI KAZUMI , ISHII AKIO
IPC分类号： C04B41/80
摘要： PURPOSE:To prevent the deformation and cracking of a fired body during reduction treatment and to develop a desired uniform color by reduction by blowing reducing flames on the surface of the fired body at a specified interval. CONSTITUTION:A burner 12 having many nozzles is set in front of the surface of a fired body 10 at 15-80mm interval and reducing flames 14 from the burner 12 are directly blown on the surface of the fired body 10 immediately after firing to carry out reduction treatment.

5. 发明专利

JPH03255807A BURNER FOR SURFACE REDUCTION OF BURNED ITEM 失效
公开(公告)号：JPH03255807A
公开(公告)日：1991-11-14
申请号：JP5237390
申请日：1990-03-02
申请人： INAX CORP , NIPPON STEEL CORP
发明人： MORIOKA TOSHIMICHI , HIRANO YASUHISA , IWAHASHI AKIRA , MATSUO MASATAKA , KURAYOSHI KAZUMI , ISHII AKIO
IPC分类号： F23D14/56 , F27B9/24 , F27B9/30 , F27B9/36 , F27D7/04 , F27D99/00
摘要： PURPOSE:To uniformize the composition and concentration of reducing gas over the area from outer periphery to central region by disposing a large number of blowoff holes with specific diameter of a burner in such a manner that the interval between the adjacent blowoff holes is made smaller than specific number of times the diameter of the hole. CONSTITUTION:There are provided a burner head 12 and a premixing section 14, where fuel gas and air respectively fed from feed ports 16, 18 is premixed and then sent therefrom to the burner head 12. The mixed gas is blown off and excessive fuel gas is decomposed by flames to produce reducing gas. A large number of blowoff holes 26 have a diameter (d) of 1-5mm and the interval (l) between the adjacent holes 26, 26 is less than three times the diameter of the hole. And the mixed gas blown off from the holes 26 is decomposed in flames containing reducing gas, so that reducing gas is produced. Reduction is performed by blowing said reducing gas, wherein the reduction is carried out in a zone isolated from the outside atmosphere, so that the reduction is performed uniformly.

6. 发明专利

JPH03255884A CONTINUOUS CALCINATION FURNACE 失效
公开(公告)号：JPH03255884A
公开(公告)日：1991-11-14
申请号：JP5237690
申请日：1990-03-02
申请人： INAX CORP , NIPPON STEEL CORP
发明人： MORIOKA TOSHIMICHI , HIRANO YASUHISA , IWAHASHI AKIRA , MATSUO MASATAKA , KURAYOSHI KAZUMI , ISHII AKIO
IPC分类号： F27B9/04 , F27B9/24 , F27B9/36 , F27D7/06
摘要： PURPOSE:To obtain a stable reduced color of a calcined article by disposing a reducing band where a reducing flame from a burner is prevented from passing through gaps among rollers by a shielding plate located in close vicinity to the rollers opposing to a burner. CONSTITUTION:In a continuous calcination furnace 10, an article 14 to be calcined is calcined upon passing through a calcination band whilst it is carried by a roller 12 from an inlet of a furnace to an outlet of the same, and the article 14 is reduced by a burner 16 in a reducing band located therebehind, and thereafter the article 14 is carried after passing through a heat holding band 21 and cooled into a product. In the reading band, a refractory material- made shielding member 18 is formed over a predetermined range just under and the reducing burner 16 so as to bury a space below the roller 12. Hereby, a reducing flame from the burner 16 is prevented from passing downwardly through spaces among the rollers 12. Accordingly, the flame is prevented from being distributed and a flame state prevented from being disturbed and a flame state prevented from being changed each time the article 14 passes through just under the burner 16. Thus, reducing conditions are kept uniform and stable reduced color is yielded.

7. 发明专利

JP2011214020A Cooling structure of bottom lower part of blast furnace 有权
标题翻译： BLAST FURNACE下部冷却结构
公开(公告)号：JP2011214020A
公开(公告)日：2011-10-27
申请号：JP2010080433
申请日：2010-03-31
申请人： Kurosaki Harima Corp , Nippon Steel Corp , Nippon Steel Engineering Co Ltd , 新日本製鐵株式会社 , 新日鉄エンジニアリング株式会社 , 黒崎播磨株式会社
发明人： KURAYOSHI KAZUMI , TAGO HIROKI , NITTA NORIO , SASAKI TOSHIHISA
IPC分类号： C21B7/10 , C04B35/66 , C21B7/00 , F27D1/00 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide a cooling structure of a furnace bottom part of a blast furnace, with which good cooling performance can be obtained.SOLUTION: The cooling structure of the furnace bottom lower part of the blast furnace, which is constructed between a bottom plate 7 arranged at the lower surface of the body of the blast furnace 1 and the foundation 10 of the blast furnace 1 and is provided with water-cooling pipes 8 for cooling in the inner part, has a boundary line at a prescribed position in the vertical direction of the cooling structure. In the upper part from the boundary line, a pressure-fed material 21 composed of 10-60 mass% alumina raw material, >0 to 5 mass% graphite and ≥35 mass% silicon carbide raw material, and having thermal conductivity of 6-20 W/m.k is filled at a portion till the bottom plate 7. In the lower part from the boundary line, a castable material 25 having lower thermal conductivity than pressure-fed material 21, is filled at a portion till the foundation 10 of the blast furnace 1.
摘要翻译：要解决的问题：提供一种高炉炉底部的冷却结构，可以获得良好的冷却性能。解决方案：高炉炉底下部的冷却结构底板7布置在高炉1的主体的下表面和高炉1的基座10上，并且设置有用于在内部部分中冷却的水冷却管8，具有在规定位置的边界线冷却结构的垂直方向。在边界线的上部，由10-60质量％的氧化铝原料，> 0〜5质量％的石墨和≥35质量％的碳化硅原料构成的导热率为6〜在底板7的一部分填充20W / m·k。在边界的下部，将具有比加压材料21低的导热性的浇注材料25填充到直到基底10的部分高炉1。

8. 发明专利

JPH06293557A MAGNESIA-CARBON FIRE BRICK 失效
公开(公告)号：JPH06293557A
公开(公告)日：1994-10-21
申请号：JP7689993
申请日：1993-04-02
申请人： HARIMA CERAMIC CO LTD , NIPPON STEEL CORP
发明人： KURAYOSHI KAZUMI , TANAKA MASAHITO
IPC分类号： C04B35/043 , C04B35/04
摘要： PURPOSE:To provide a magnesia-carbon fire brick excellent in corrosion resistance to be used for the lining of a molten metal treating vessel. CONSTITUTION:This fire brick consist essentially of a magnesia refractory containing an electromelting magnesia and carbon, and the electromelting magnesia is defined as 10-80wt.% in 3-0.7-mm particle size 3mm particle size. Since the electromelting magnesia is blended in to this obtained magnesia-carbon fire brick the corrosion resistance is improved. And since the electromelting magnesia is used in the specific ratio of blending amount and particle size, the blending amount is reduced than heretofore and the cost of the brick is minimized.

9. 发明专利

JPH01259101A MANUFACTURE OF FERROUS SPHERICAL PARTICLE 失效
公开(公告)号：JPH01259101A
公开(公告)日：1989-10-16
申请号：JP8538988
申请日：1988-04-08
申请人： NIPPON STEEL CORP , HAMADA JUKO
发明人： MATSUO MASATAKA , KURAYOSHI KAZUMI , FUKUOKA HIROMI
IPC分类号： B22F1/00
摘要： PURPOSE:To easily manufacture ferrous spherical particles having only a little iron oxide by charging ferrous powder in combustion flame gas together with inert gas and melting and sphering the ferrous powder in the flame. CONSTITUTION:The oxygen-propane flame 2 and the ferrous powder 3 are injected from a burner 1. The above ferrous powder 3 is come into the burner 1 together with inert gas 9 of nitrogen gas, etc., through a pipe 4 from a hopper 5 and injected from powder injection holes 11. On the other hand, the oxygen 6 and the propane 7 are come into the burner 1 through a gas controller 8 to become the oxygen-propane mixed gas and injected from flame holes 10 to form the flame 2. The powder injection holes 11 and the flame holes 10 in the burner 1 are arranged as circularly sandwich-state. By this constitution, the ferrous powder 3 is injected into the flame 2 while preventing oxidation with the inert gas. By this method, the ferrous powder 3 is melted and perfectly sphered with surface tension and the ferrous spherical particle having only a little iron oxide is obtd. through cooling process.

10. 发明专利

JPH01163595A METHOD OF EXECUTING REFRACTORY HEAT-INSULATING LINING 失效
公开(公告)号：JPH01163595A
公开(公告)日：1989-06-27
申请号：JP32148387
申请日：1987-12-21
申请人： NIPPON STEEL CORP
发明人： FUKUOKA HIROMI , TSUKADA MINORU , KURAYOSHI KAZUMI , MATSUMOTO YOSHIBUMI
IPC分类号： F27D1/00
摘要： PURPOSE: To sustain refractoriness stably for a long term by planting the forward end part of a lining ceramic fiber directly in a refractory of indeterminate shape under wet state immediately after installation. CONSTITUTION: When the ceiling part of a prefab steel piece heating furnace is subjected to refractory heat insulation lining, a split iron skin 1 is fixed with a frame 6 to form a frame and set upside down. After being set with anchor bricks 5, forms is filled compactly with muddy refractories 2' of indeterminate shape and lining ceramic fibers 4 are pasted onto a retainer plate 7 with a handle. Free end of the fiber 4 is then pressed against the surface of the refractories 2' filling the forms under wet state by means of the plate 7. It is cured and dried up under that state before removing the forms and brought into the furnace while fixing the plate 7 and jointed with the iron skin part 1 thus forming the ceiling part. According to the structure, heat insulating and shielding effect of ceramic fiber can be sustained for a long time without requiring any maintenance.

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