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1. 发明专利

JPH05170560A FILLER FOR TAP HOLE OF BLAST FURNACE 失效
公开(公告)号：JPH05170560A
公开(公告)日：1993-07-09
申请号：JP34142391
申请日：1991-12-24
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： HORI HIRAKAZU , YAMAGUCHI KAZUNARI , FURUSATO ISAO , KATAOKA MINORU , UCHIDA YOSHIHIKO , MATSUNAGA TAKASHI , NAKAMURA NOBU , NAKAYAMA MASAAKI , AMANO SHIGERU , IWANAGA TAKEICHI , SATO TAKAYOSHI , KOBAYASHI MASANORI
IPC分类号： C04B35/66 , C21B7/12
摘要： PURPOSE:To obtain a long-life filler for tap hole of a blast furnace enabling the long-term spouting of molten ion even by enlarging the diameter of the tap hole of a blast furnace by compounding ZrO2 and C powder having controlled particle sizes at a specific ratio and adding metal powder to the mixture. CONSTITUTION:The objective filler is produced by compounding (A) 15-90 pts.wt. of ZrO2 having particle diameter of

2. 发明专利

JPH08169773A PACKING MATERIAL IN BLAST-FURNACE TAP HOLE 失效
公开(公告)号：JPH08169773A
公开(公告)日：1996-07-02
申请号：JP33463494
申请日：1994-12-20
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO , DAINIPPON INK & CHEMICALS
发明人： NAKAMURA NOBU , MARUOKA TOMOAKI , MATSUNAGA TAKASHI , HORI HIRAKAZU , SAMEJIMA KENICHI , NISHIMURA DAIJIRO
IPC分类号： C04B35/00 , C04B35/66 , C21B7/12
摘要： PURPOSE: To obtain a packing material in a blast-furnace tap hole stabilizing the charging pressure of a mud gun and facilitating the cleaning of the mud gun by using a refractory aggregate and a phenol resin soluble in the aromatic solvent with the ortho-to-para ratio specified as the main components. CONSTITUTION: A refractory aggregate A selected from silicon carbide, alumina, agalmatolite, chamotte, magnesia, zirconia, etc., and a phenol resin B soluble in the aromatic solvent with the ortho-to-para ratio controlled to >=2 are incorporated as the main components, and a curing agent C (e.g. hexamine) and tar and/or pitch D are further incorporated, as required, to produce the packing material in a blast-furnace tap hole. The component A: component B: component D weight ratio is preferably controlled to 100:5 to 25:0 to 20. The amt. of component C is preferably controlled to 0 to 3wt.% of the total amt. of components B and D. Consequently, the obtained packing material in a blast-furnace tap hole is filled deeply to the central part, and the abnormal blowoff of gas is prevented.

3. 发明专利

JPH05170559A ZRB2-C BASED FILLER FOR TAP HOLE OF BLAST FURNACE 失效
公开(公告)号：JPH05170559A
公开(公告)日：1993-07-09
申请号：JP34142091
申请日：1991-12-24
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： HORI HIRAKAZU , YAMAGUCHI KAZUNARI , FURUSATO ISAO , KATAOKA MINORU , UCHIDA YOSHIHIKO , MATSUNAGA TAKASHI , NAKAMURA NOBU , NAKAYAMA MASAAKI , AMANO SHIGERU , IWANAGA TAKEICHI , SATO TAKAYOSHI , KOBAYASHI MASANORI
IPC分类号： C04B35/66 , C21B7/12
摘要： PURPOSE:To provide a long-life filler for a tap hole of a blast furnace. CONSTITUTION:The objective long-life filler for a tap hole of a blast furnace contains ZrB2 and carbon powder having particle diameters adjusted to

4. 发明专利

JPS5160620A Kororonaijokyokenchihoho 失效
公开(公告)号：JPS5160620A
公开(公告)日：1976-05-26
申请号：JP13580374
申请日：1974-11-25
申请人： Nippon Steel Corp
发明人： SUKATA MASAYASU , ABE ISAO , NAKAMURA NOBU
IPC分类号： C21B5/00 , C21B7/00 , C21B7/24

5. 发明专利

JPS5123410A KORONO ENSHUBARANSUKENCHIHOHO 失效
公开(公告)号：JPS5123410A
公开(公告)日：1976-02-25
申请号：JP9633674
申请日：1974-08-22
申请人： NIPPON STEEL CORP
发明人： SUKATA MASAYASU , ABE ISAO , KUME SHOICHI , OOKUBO NAOTAKE , NAKAMURA NOBU
IPC分类号： C21B7/24 , C21B7/16

6. 发明专利

JPH06212221A METHOD FOR MAINTAINING TROUGH AND CONSTITUTION AND ARRANGEMENT OF EQUIPMENT USED IN TROUGH MAINTAINING WORKS 失效
公开(公告)号：JPH06212221A
公开(公告)日：1994-08-02
申请号：JP28213093
申请日：1993-10-18
申请人： NIPPON STEEL CORP
发明人： ANAMI YASUHIKO , IWANAGA TAKEICHI , KUZE SHUNSUKE , UCHIDA TAKAYUKI , NAKAMURA NOBU
IPC分类号： C21B7/14 , F27D1/16
摘要： PURPOSE:To efficiently maintain a trough on the hearth of blast furnace in a labor saving without needing the skillness and the technique by making the repairing and the maintenance of a refractory in the inner surface of the troughs for molten iron and molten slag in the hearth of blast furnace the off-line work and semi-automating. CONSTITUTION:A dismantling pattern of the refractory damaged in the troughs for flowing down the molten iron and the molten slag from the blast furnace on the hearth of blast furnace, is detected with an observing device 50, and the remaining iron and the remaining refractory at the bottom part of the damaged trough 1 are crushed with a rotary drum 11 in a trough dismantling device 52 and carried out in a recovering bucket with a removing device 13. After cutting and maintaining the inner surface of the trough 1, a molding flask as a core for working the refractory is fixed by arranging the fixed space between the molding flask and the surface of the trough 1 with a fitting/detaching 22 fitted to supporting rails 21 and castable refractory in a kneader 30 is poured and filled into a space between the upper surface of the trough and the molding flask through a hopper 31 and a chute 32. Successively, after removing the molding flask, the filled refractory is dried and solidified with a burner, and by forming the new refractory layer on the inner surface of the trough 1, the repairing of the damaged trough is executed.

7. 发明专利

JPH06145743A METHOD FOR WORKING TROUGH REFRACTORY AND DEVICE THEREFOR 失效
公开(公告)号：JPH06145743A
公开(公告)日：1994-05-27
申请号：JP32228292
申请日：1992-11-09
申请人： NIPPON STEEL CORP
发明人： ANAMI YASUHIKO , IWANAGA TAKEICHI , KUZE SHUNSUKE , UCHIDA TAKAYUKI , NAKAMURA NOBU
IPC分类号： C21B7/14 , F27D1/16 , F27D3/00 , F27D3/14
摘要： PURPOSE:To efficiently execute a trough repairing work in the remote and semi-automatical condition in an exclusive workshop by placing and positioning a trough on a truck and giving the vibration with a vibrator while pouring the refractory between a molding frame and the trough. CONSTITUTION:The trough 7 taken out from a casting floor in a blast furnace is loaded on the truck (not shown in the figure) and positioned to the prescribed place in a workshop. The molding frame 2 is remotely and automatically shifted and positioned at the center of this trough 7 through the self-travelling truck 5. Successively, the refractory is stored into a hopper 18 at every butch of kneading and poured into two gaps between the trough 7 and the molding frame 2 at the same time from the lower part while self-travelling in the longitudinal direction of the trough at the prescribed velocity. Further, while pouring the refractory, the vibrator (not shown in the figure) is inserted into the refractory into both the above-mentioned two gaps, and while giving the vibration, the formation is executed.

8. 发明专利

JPS51115206A FURNACE TOP MONITORING WINDOW 失效
公开(公告)号：JPS51115206A
公开(公告)日：1976-10-09
申请号：JP4049275
申请日：1975-04-02
申请人： NIPPON ELECTRON OPTICS LAB , NIPPON STEEL CORP
发明人： ABE ISAO , NAKAMURA NOBU , OKAZAKI EIZOU , TANAKA YOSHIKATSU , SAWADA YASUHIRO , MASUKI AKIHISA , SHINOMIYA HISAYUKI
IPC分类号： C21B7/24 , F27B1/28
摘要： PURPOSE:An observation device for blast furnaces etc. featuring low dust adhesion and effective removal of dust settling, thereby ensuring full utilization of the capabilities of the unit.

9. 发明专利

JPH06116611A DEVICE AND METHOD FOR HOT-REPAIRING LARGE TROUGH IN BLAST FURNACE 失效
公开(公告)号：JPH06116611A
公开(公告)日：1994-04-26
申请号：JP29196392
申请日：1992-10-07
申请人： NIPPON STEEL CORP
发明人： ANAMI YASUHIKO , NAKAYAMA TAKEHIRO , OKAWA AKIHIRO , FUJIKAKE YOUICHI , TANAKA HIROYUKI , NAKAMURA NOBU , MARUMOTO SEIICHI
IPC分类号： C21B7/14
摘要： PURPOSE:To execute hot-repairing of a large trough by measuring the partial damaging condition in the large trough and automatic-controlling or remote-controlling a nozzle for ejecting a castable refractory for repairing according to the damaging condition. CONSTITUTION:Based on data of profile data and data memory 72 showing the damaging condition of the castable refractory in the large trough measured by a damage measuring part 20, by controlling a driving part 50 and a spraying part 40, the ejecting position, angle of the nozzle in the spraying part 40 and the ejecting quantity of the castable refractory for repairing are controlled to execute the automatic repair to the damaged position. This repairing condition is measured as three dimensional image data with a damaging data imaging part 30 and shown as the three-dimensional image on a displaying part 102 through an image data transmitting part 73 and an image data receiving part 101. According to this displayed content, by executing the remote- operation in the operating part 103, this operating data is transferred to a driving control part 71 through an operating data part 104 and an operating data receiving part 74, and the driving control part 71 controls the ejecting position and angle of the nozzle and the ejecting quantity to execute the remote repairing.

10. 发明专利

JPS5125415A KOROJUCHAKUTAI NO ENSHUBARANSUKENCHIHOHO 失效
公开(公告)号：JPS5125415A
公开(公告)日：1976-03-02
申请号：JP9863074
申请日：1974-08-28
申请人： NIPPON STEEL CORP
发明人： SUKATA MASAYASU , ABE ISAO , NAKAMURA NOBU
IPC分类号： C21B5/00 , C21B7/24

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