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1. 发明专利

JP2004131748A Structure for sealing cooling water pipe protecting tube in stave cooler and iron shell 审中-公开
公开(公告)号：JP2004131748A
公开(公告)日：2004-04-30
申请号：JP2002294538
申请日：2002-10-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OKUDA TAKAAKI , MORIMITSU HIROTOMO
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To provide a sealing structure which shortens the projecting length of cooling water piping and a protecting tube from an iron shell because of flexible sealing structure even when a stave cooler is thermally deformed and which provides a function for restraining the excessive thermal-deformation of the stave cooler.
SOLUTION: In the structure for sealing a cooling water pipe protecting tube 3 in a stave cooler 1 and an iron shell 4, a corrugated thin sheet 7 having projecting and recessed parts having a concentrically circular shape is arranged between an inner cylinder 5 welded on the outside of the above protecting tube and a cylindrical sealing box 6 welded to the iron shell. Desirably, the maximum outer diameter (d1) of the inner cylinder welded on the outside of the protecting tube is larger than the minimum inner diameter (d2) of the cylindrical sealing box welded to the iron shell, and the maximum outer diameter part of the inner cylinder is positioned in a more outer part of the furnace compared to the minimum inner diameter part of the cylindrical sealing box.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003171708A PROTECTIVE DEVICE OF TUYERE FOR METALLURGICAL FURNACE 审中-公开
公开(公告)号：JP2003171708A
公开(公告)日：2003-06-20
申请号：JP2001376200
申请日：2001-12-10
申请人： NIPPON STEEL CORP
发明人： OKUDA TAKAAKI , MORIMITSU HIROTOMO
IPC分类号： C21B7/16 , F27D1/00
摘要： PROBLEM TO BE SOLVED: To provide a protective structure of a tuyere for a metallurgical furnace which prevents hot contents in the furnace from being directly dropping on the upper side of the tuyere and prolongs the service life of the tuyere. SOLUTION: In the protective device of the tuyere 1 which is provided to blow hot air into the metallurgical furnace used to smelt ores or the like and supported by a refractory 4 disposed therearound, a metal piece 6 having a refrigerant passage 8 is protruded on the in-furnace side and arranged on the upper part of the refractory 4 above the tuyere. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2003049211A Stave cooler 有权
标题翻译：冷却器
公开(公告)号：JP2003049211A
公开(公告)日：2003-02-21
申请号：JP2001235476
申请日：2001-08-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORIMITSU HIROTOMO , OKUDA TAKAAKI
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To provide a more economic and high rigidity stave cooler.
SOLUTION: The stave cooler has vertically long reinforcing ribs along the height direction of the stave cooler formed in a cast base material at the positions of a passage for coolant at the back surface side.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供更经济和更高刚性的凉板。解决方案：在冷却剂在后表面侧的通道的位置处，壁板式冷却器沿着形成在铸造基材中的壁板冷却器的高度方向具有垂直长的加强筋。

4. 发明专利

JP2002275514A COOLING TUBE IN STAVE COOLER 失效
公开(公告)号：JP2002275514A
公开(公告)日：2002-09-25
申请号：JP2001073985
申请日：2001-03-15
申请人： NIPPON STEEL CORP
发明人： KISHIGAMI KAZUTSUGU , MORIMITSU HIROTOMO
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To provide a double structural cooling tube cast into a stave cooler, in which high cooling capacity is obtained by strengthening the stickiness between the inner tube and the outer tube thereby increasing the thermal conductivity. SOLUTION: In the cooling tube in the stave cooler used for cooling the furnace wall of a blast furnace, an electric furnace, etc., plural outer tubes 2 are disposed on the inner tube 1 cast with a cast iron at interval to form the double tubes, and a coating material 3 is applied on the surface of the inner tube 1 at the interval between the outer tubes 2, and the outer diameter of the inner tube 1 and the inner diameter of the outer tube 2 are defined by an inequality. The inequality is D1>d2>D1-0.5 (wherein, D1 is the outer diameter (mm) of the inner tube and d2 is the inner diameter (mm) of the outer tube).

5. 发明专利

JP2002030314A ROLLED PLATE-MADE STAVE COOLER 失效
公开(公告)号：JP2002030314A
公开(公告)日：2002-01-31
申请号：JP2000207764
申请日：2000-07-10
申请人： NIPPON STEEL CORP
发明人： MORIMITSU HIROTOMO , OKUDA TAKAAKI
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To improve the cooling capacity by devising shapes of cooling water passages in a rolled plate-made stave cooler, and to make an existing iron shell opening hole usable. SOLUTION: One pair of mutually facing one pair of (1) U-shaped water passages, (2) L-shaped water passages, (3) chevron-shaped water passages, (4) U-shaped water passages and chevron-shaped water passages and (5) L-shaped water passages and chevron-shaped water passages are formed respectively. The opening hole of the rolled plate end surface in each water passage is closed with a plug, and a water supply hole and a water discharge hole introduced to the outside surface of the rolled plate from each end part of the water passage are arranged. Thus, a water supply pipe and a water discharge pipe are made of the rolled material having fine and uniform structure and high strength and heat-conductivity and can collectively be set and the existing iron shell opening hole parts can be used as they are. Further, the construction period can drastically be shortened and the downtime of a blast furnace can be shortened. Furthermore, the long service life of the stave cooler can be expected without lowering the iron shell strength.

6. 发明专利

JP2003034810A Stave cooler 有权
标题翻译：冷却器
公开(公告)号：JP2003034810A
公开(公告)日：2003-02-07
申请号：JP2001223553
申请日：2001-07-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OKUDA TAKAAKI , MORIMITSU HIROTOMO
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To provide a long-lasting and economical stave cooler for enhancing the maintenance function of monolithic refractory, reducing the area of the projecting part of the stave cooler exposed to the furnace gas, after the refractory has become extinct, reducing crack generation around the foot of the projected part, and possibly reducing circulation quantity of cooling water.
SOLUTION: The stave cooler 1 which is installed around the inner face of the metallurgy furnace, comprises arranging an upper face 3 of a shelf-shaped jutting part 2 which is installed around the in-furnace face of a stave body, so as to have an angle of elevation of less than 10 degree toward the inside of the furnace, a lower face 4 of the shelf-shaped jutting part 2, so as to have an angle of elevation of greater than 30 degree toward the inside of the furnace, and curvature at the parts 5 and 6 in which the upper face 3 and the lower face 4 respectively intersect with the stave body.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供一个持久和经济的梯形冷却器，用于提高整体耐火材料的维护功能，减少暴露于炉煤气的壁板冷却器突出部分的面积，耐火材料已经灭绝后，减少裂纹在投影部分的脚下产生，并可能减少冷却水的循环量。解决方案：安装在冶金炉内表面的隔板冷却器1包括：布置在台板体的炉内面周围的搁板形突出部分2的上表面3，以便具有向炉内部提供小于10度的仰角，即搁板状突出部2的下表面4，朝向炉内侧具有大于30度的仰角，以及在上表面3和下表面4分别与梯形体相交的部分5和6处的曲率。

7. 发明专利

JP2001294915A DEVICE FOR COOLING REFRACTORIES IN SIDE WALL AT FURNACE BOTTOM IN BLAST FURNACE 失效
公开(公告)号：JP2001294915A
公开(公告)日：2001-10-26
申请号：JP2000114093
申请日：2000-04-14
申请人： NIPPON STEEL CORP
发明人： MORIMITSU HIROTOMO , OKUDA TAKAAKI
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To intensify cooling of refractories in a side wall at a furnace bottom in a blast furnace, and to perform the stable cooling having high reliability without hard work at low cost. SOLUTION: In a device for cooling the refractories in the side wall at the furnace bottom in the blast furnace constituted of carbon brick, castable refractory and an iron shell in order from inside of the furnace, the cooling device is formed of triple-tubes and two-layers at the outside of the triple-tubes are used as a cooling water flowing passage closed at the tip end and the center is formed in a hollow state opened at the tip end part. The triple-tubes penetrate the iron shell and the castable refractory, and the tip end thereof is embedded into a bored hole bored in the carbon brick. In the hollow, it is desirable to insert a thermo-meter for detecting the temperature of the furnace bottom and further, it is desirable that the hollow part is a guiding passage of a pressing-in paste for closely sticking the bored hole of the carbon brick and the cooling device.

8. 发明专利

JP2000273511A STAVE COOLER 失效
公开(公告)号：JP2000273511A
公开(公告)日：2000-10-03
申请号：JP8475299
申请日：1999-03-26
申请人： NIPPON STEEL CORP
发明人： MORIMITSU HIROTOMO , KISHIGAMI KAZUTSUGU , HIRATA KOJI , HIRAO YUJI
IPC分类号： C21B7/10
摘要： PROBLEM TO BE SOLVED: To obtain a stave cooler for cooling a furnace wall having homogeneous heat insulating characteristic by inserting a cooling pipe at the rear surface side and the preformed porous ceramics at the working surface side as cast-in. SOLUTION: A cooling pipe 2 is disposed at the rear surface side of the stave cooler 1 and the preformed porous ceramic 3 is disposed at the working surface side and these are inserted as cast-in. It is desirable that the diameter of pores 4 in the porous ceramic 3 is >= average 2 mm and the percentage of void is >=50%. The porous ceramic 3 is separately used to either one of alumina base and SiC base according to thermal loading state in a blast furnace. Since the preformed ceramic having the homogeneous percentage of void is used, a complex body of the homogeneous casting and the porous ceramic is obtd. after casting. Since cast iron flows into the voids in the porous ceramic 3 at the casting time, the cast iron holds the porous ceramic 3 with the wide holding surface and prevents the fall-down. The porous ceramic 3 is formed as a panel-state and has good workability when the stave is manufactured.

9. 发明专利

JP2004099925A Structure for cast copper stave cooler 有权
公开(公告)号：JP2004099925A
公开(公告)日：2004-04-02
申请号：JP2002259759
申请日：2002-09-05
申请人： Nippon Steel Corp , Nittetsu Plant Designing Corp , 新日本製鐵株式会社 , 日鐵プラント設計株式会社
发明人： MORIMITSU HIROTOMO , MURATA TARUMI
IPC分类号： C21B7/10 , F27D1/12
摘要： PROBLEM TO BE SOLVED: To provide a structure for cast copper stave cooler with which the joining strength of the copper casting with a cooling water passage at the outer part and the reliability are high and the stave cooler can sufficiently restrain the deformation becoming a convex-shape toward the inside of a blast furnace.
SOLUTION: In the structure of the cast copper stave cooler for cooling the furnace wall in the blast furnace, the cooling water passage is formed at the outer part of the above cast copper by casting a steel pipe having a stopper for preventing the fall-out in the outer periphery, at the end part of the cooling water passage arranged in the inner part of the cast copper. Projection having reverse tapered shape toward the furnace outside of this cast copper, is cast to hold castable refractories with the projection.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003247011A METHOD AND DEVICE FOR OPENING/CLOSING MOLTEN METAL TAPPING HOLE FOR METALLURGICAL FURNACE 审中-公开
公开(公告)号：JP2003247011A
公开(公告)日：2003-09-05
申请号：JP2002043413
申请日：2002-02-20
申请人： NIPPON STEEL CORP
发明人： OKUDA TAKAAKI , MORIMITSU HIROTOMO
IPC分类号： C21B7/12
摘要： PROBLEM TO BE SOLVED: To provide a method and a single device for opening/closing a molten metal tapping hole used for both functions of the opening and the closure of the molten metal tapping hole. SOLUTION: In the method for opening/closing the molten metal tapping hole 1 in a metallurgical furnace for melting raw materials, such as ore, a core metal rod 2 is used as a spindle and a mud material 3 having a cross sectional shape a little larger than that of the molten metal tapping hole, is formed as a columnar shape around the core metal rod, and the molten metal tapping hole is closed by driving in the mud material together with the above core metal rod and desirably, the molten metal tapping hole is opened by pulling out the driven-in core metal rod together with the above mud material from the mud material. COPYRIGHT: (C)2003,JPO

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