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1. 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.

2. 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。

3. 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.

4. 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.

5. 发明专利

JPH01100084A PRODUCTION OF SPRAY-COATED TILE 失效
公开(公告)号：JPH01100084A
公开(公告)日：1989-04-18
申请号：JP25898087
申请日：1987-10-13
申请人： NIPPON STEEL CORP
发明人： MATSUO MASATAKA , KURAYOSHI KAZUMI
IPC分类号： C04B41/86 , C04B41/89
摘要： PURPOSE:To obtain a flame spray-coated tile free from warp and deformation and having excellent durability, by flame-spraying a glaze to a tile substrate and applying inorganic particles to the surface of the glaze while the surface is still in a hot and viscous state. CONSTITUTION:A tile substrate 1 composed of a sintered material produced by sintering cordierite, chamotte, pagodite, alumina, silica, etc., or their mixture is sprayed with a glaze 3 produced by mixing various pigments in e.g. an SiO2- R2O-R2O3 frit through a flame-spray burner 2 to form a glaze layer 4 having a thickness of 0.2-2mm. Inorganic particles 5 having particle diameter of

6. 发明专利

JPH01100082A APPARATUS FOR PRODUCING SPRAY-COATED TILE HAVING PATTERN 失效
公开(公告)号：JPH01100082A
公开(公告)日：1989-04-18
申请号：JP25897987
申请日：1987-10-13
申请人： NIPPON STEEL CORP
发明人： MATSUO MASATAKA , KURAYOSHI KAZUMI
IPC分类号： C04B41/86
摘要： PURPOSE:To facilitate the partial control of temperature and obtain a glaze layer having varied patterns, by controlling the flame-spray condition of a glaze, thereby controlling the color development of the flame-sprayed glaze. CONSTITUTION:Plurality of glazes 9 stored in storage tanks 1a-1e are transferred through a line 3 to a flame-spray burner 4 by driving feeders 2a-2e in controlled state, melted with flame 7 of a fuel gas and O2 gas supplied through lines 5, 6, and sprayed against a tile substrate 8 to form a glaze layer 10. The state of the feeders 2a-2e, i.e. driven or non-driven, is detected and the detection signal (a) is inputted into a controlling mechanism 11 and compared with a standard signal (b) such as optimum spraying conditions according to the kind and feeding rate of the glaze or the change in the color tone of the glaze corresponding to the spray temperature. The spraying conditions are calculated according to the results, the calculated result (C) is transmitted to the feeders 2a-2e and lines 5, 6 and the designated kind of glaze is sprayed to a tile substrate 8 under the necessary color-developing conditions.

7. 发明专利

JPH01100079A BAKING OF GLAZE ON COLUMNAR OBJECT 失效
公开(公告)号：JPH01100079A
公开(公告)日：1989-04-18
申请号：JP25897787
申请日：1987-10-13
申请人： NIPPON STEEL CORP
发明人： MATSUO MASATAKA , KURAYOSHI KAZUMI
IPC分类号： C04B41/86 , C04B41/50
摘要： PURPOSE:To easily form a glaze layer on a surface of a columnar object, by standing the object on a rotary table, rotating the table and flame-spraying a glaze against the circumference of the columnar object while vertically reciprocating a flame-spray burner along the longitudinal direction of the columnar object. CONSTITUTION:A columnar tile substrate 1 is set up vertically on a rotary table 2 containing a built-in motor and a flame-spray burner 3 is disposed opposite to the substrate interposing a prescribed distance from the circumference of the columnar tile substrate 1. The rotary table 2 is rotated with the motor and a glaze 4 (e.g. SiO2-R2O frit) is flame-spray coated to the circumference of the columnar tile substrate 1 with the flame-spray burner 3 while vertically reciprocating the flame-spray burner 3 along the longitudinal direction of the columnar tile substrate 1. A glaze layer 5 is formed on the whole circumference of the tile substrate 1 by this process. Preferably, the spraying of the glaze 4 is carried out while maintaining a definite distance between the burner 3 and the tile substrate 1 with a sensor detecting the distance between the burner 3 and the tile substrate 1.

8. 发明专利

JPS63199814A METHOD FOR PRETREATING MOLTEN IRON BY UTILIZING SLAG 失效
公开(公告)号：JPS63199814A
公开(公告)日：1988-08-18
申请号：JP2967187
申请日：1987-02-13
申请人： NIPPON STEEL CORP
发明人： ONO KATSUYA , YAMAGUCHI KAZUYOSHI , MATSUO MASATAKA , KURAYOSHI KAZUMI
IPC分类号： C21C1/00 , C21C1/02 , C21C1/04
摘要： PURPOSE:To reduce generating slag quantity and to reduce unit consumption of a treating agent and heating cost by injecting the pretreating agent to continu ing flow of molten iron after heating at high temp. and executing dephosphorization without slagging off on the downstream side after desiliconizing at the upstream side. CONSTITUTION:The pretreating agents for desiliconizing agent and dephosphoriz ing agent are injected to the molten iron flow 4 flowing on the trough bottom 3 of casting floor of a blast furnace from lances 1, 2 to execute the pretreatment of molten iron 4. Then, the lance 1 at the upstream is used and the prescribed desiliconizing agent containing iron oxide and CaO is injected, to execute the desiliconization. After that, in the downstream side, the slag generated by desiliconizing treatment without slag off is used, and further the dephosphorizing agent having CaO content is injected from the lance 2, to execute the dephos phorizing treatment. In this way, by saving the addition quantities of oxide iron and fluorspar, total slag generated quantity is reduced and this treating load is reduced. Further, the unit consumption of iron oxide, etc. heating cost of treating agent can be reduced.

9. 发明专利

JPS58141321A LIGHTING METHOD OF SKID PIPE OF HEATING FURNACE 失效
公开(公告)号：JPS58141321A
公开(公告)日：1983-08-22
申请号：JP2124182
申请日：1982-02-15
申请人： NIPPON STEEL CORP
发明人： MATSUMOTO YOSHIBUMI , KURAYOSHI KAZUMI
IPC分类号： C21D1/00 , F27D3/02
摘要： PURPOSE:To decrease the quantity of heat transfer to the cooling water in a skid pipe, by applying heat insulating refractory linings wherein an inside layer consists of heat insulating materials, an intermediate layer of refractories contg. metallic fibers and an outside layers of heat insulating materials on the skid pipe. CONSTITUTION:Ceramic fibers 3' impregnated with colloidal silica as heat insulating materials are wound around a skid pipe 1 of a heating furnace as an inside layer of the linings thereof. Refractory castables 5' contg. >=0.1wt% fibers 7 of stainless steel or the like are lined thickly thereon. Ceramic fibers 4' as an outside layer are wound on the outside of the castables 5' with adhesive agents. Then, there is no need for studding to the pipe 1; therefore, the quantity of the heat to be flowed out through the studs is eliminated and the heat losses by the cooling water in the pipe 1 are decreased.

10. 发明专利

JPH08110174A DEVICE FOR PILING UP BRICKS TO REFINING CONTAINER 失效
公开(公告)号：JPH08110174A
公开(公告)日：1996-04-30
申请号：JP24787594
申请日：1994-10-13
申请人： HARIMA CERAMIC CO LTD , NIPPON STEEL CORP
发明人： KURAYOSHI KAZUMI , YONEZAWA YOJI
IPC分类号： C21C5/44 , F27D1/16
摘要： PURPOSE: To provide a device for piling up bricks capable of reducing the number of mechanical devices brought into a furnace and performing an easy piling-up of the bricks even for a small-sized converter. CONSTITUTION: A turning rail 6 is arranged at an opening of a converter 2 and a turning frame 7 is mounted on the turning rail 6. An extending or retracting rod 12 is supported in a vertical direction at the turning frame 7, an articulated jib 13 is pivotally supported at the lower end of the extending or retracting rod 12. The extremity end of the jib 13 is provided with an oscilatable vacuum set 28, an extremity end operating panel and an operating handle 32 and the like, and then bricks 4 sucked and held by an suction and fixing pad are piled up at desired locations at the inner wall of the converter 2 through a horizontal turning of the jig 13 and the extending or retracting operation of the extending or retracting rod 12.

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