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51. 发明专利

JPH04332387A SPRAYING METHOD FOR REFRACTORY MATERIAL 失效
公开(公告)号：JPH04332387A
公开(公告)日：1992-11-19
申请号：JP12670791
申请日：1991-04-30
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MITSUI HARUO , YUMOTO TOSHIHIDE , YOSHIMURA MATSUICHI , OGUCHI MASAO , MUNETOMO SATOO , HANAOKA KAN
IPC分类号： C21B7/06 , F27D1/16
摘要： PURPOSE:To prevent clogging of a nozzle by a method wherein aggregate and mortar, which are supplied to a spray nozzle through different routes, are mixed in the spray nozzle while curing agent, supplied through further different route, is added to the aggregate and mortar at the vicinity of the tip end of the spray nozzle. CONSTITUTION:Aggregate 40 and mortar 20 are supplied to a spray nozzle 1 through different routes and are mixed in a mixing chamber 14 situated at the root of the spray nozzle 1. Curing agent 30, supplied to the spray nozzle 1 through a further different route, is blown into the spray nozzle 1 from a curing agent blowing part 13 together with high-pressure air 50. 1 Then, the curing agent 30 is added to the aggregate 40 and the mortar 20 at the vicinity of the tip end of the spray nozzle 1 through a space 11 surrounded by a rubber tube 2 and the main body of the spray nozzle 1. Accordingly, the curing agent 30 will never be contacted with the aggregate 40 and/or mortar 20 and will never be cured in the nozzle 1 whereby the clogging of the nozzle 1 can be prevented.

52. 发明专利

JPH04224062A NOZZLE FOR CASTING WITH HIGH DURABILITY 失效
公开(公告)号：JPH04224062A
公开(公告)日：1992-08-13
申请号：JP41437890
申请日：1990-12-26
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MITSUI HARUO , TAKESHITA SHIGEYUKI , IIDA MASAKAZU
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PURPOSE:To prevent the durability from reducing which is caused by cracking with the repeated heat impact exerted to the nozzle for casting of continuous casting, etc., to improve the acid resisting property and the corrosion resisting property and to prolong the durable life. CONSTITUTION:The reinforcing material 7 of the metallic wire, the steel wire and the carbon fiber is arranged in the monolithic refractory on the outer circumferential part of the nozzle 7 for casting, the monolithic refractory having excellent slag resistance and molten metal resistance is used at the slag line part 5 and the metal line part 6 of the lower part of the above casting nozzle 1 where are in contact with the molten metal or the slag, and also the monolithic refractory having excellent oxidation resistance is used on the upper side of this slag line part 5 where is not in contact with the molten metal or the slag.

53. 发明专利

JPH0431378A COATING MATERIAL FOR PREVENTING CARBON ADHERENCE 失效
公开(公告)号：JPH0431378A
公开(公告)日：1992-02-03
申请号：JP13871190
申请日：1990-05-28
申请人： KAWASAKI REFRACTORIES CO LTD , KAWASAKI STEEL CO
发明人： MITSUI HARUO , OGUCHI MASAO , KAWAKAMI TATSUO , YOSHIMURA HIDEO , HONMA MICHIO , TERASONO KIYOMI
IPC分类号： C04B41/87 , C04B35/66 , F27D1/00
摘要： PURPOSE:To provide a coating material improved in carbon adherence preventiveness, comprising each specified amount of two or more kinds of Al2O3 fine powder differing in size from one another, SiO2 fine powder and a silicic acid colloid solution. CONSTITUTION:A total of 100 pts.wt. of the objective coating material can be obtained by dispersing (A) 5-40 pts.wt. of Al2O3 fine powder

54. 发明专利

JPH03205374A CASTABLE REFRACTORY 失效
公开(公告)号：JPH03205374A
公开(公告)日：1991-09-06
申请号：JP34242389
申请日：1989-12-30
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MIKI NORIO , MINO HIDEHIKO , MITSUI HARUO
IPC分类号： C04B35/66
摘要： PURPOSE:To improve fluidity by mixing respectively specific amounts of refractory aggregate, refractory fine powder, alumina cement, sodium polyphosphate, a compound salt of alumina cement and CaCl2 and sodium naphthalenesulfonate. CONSTITUTION:60-80wt.% refractory aggregate having adjusted granular size is mixed with 30-36wt.% refractory fine powder such as silica fine powder having

55. 发明专利

JPH03140793A PANEL DEVICE FOR REPAIR OF BLAST FURNACE AND THE LIKE 失效
公开(公告)号：JPH03140793A
公开(公告)日：1991-06-14
申请号：JP28076689
申请日：1989-10-26
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MITSUI HARUO , SHIMIZU MASASHIGE , OGUCHI MASAO , KAWAKAMI TATSUO
IPC分类号： E04G23/02 , C21B7/06 , F27D1/16
摘要： PURPOSE:To permit the repair of a furnace without leaking repairing material into a furnace by a method wherein a repairing bag, filled with the repairing material so as to be capable of repairing a furnace wall, is attached to the filling side of the repairing material of a panel for repairing the furnace wall and the like of a blast furnace. CONSTITUTION:A panel 2 for repairing is formed by precasting refractories into a predetermined rectangular shape and a panel iron sheet 5 is attached to the back surface of the same to reinforce it. A repairing bag 4' is attached to the panel iron sheet 5 at the back surface of the repairing panel 2. When a repairing material 3 is forced into the repairing bags 4 of the repairing panel 2, provided from a repairing material supplying pipe 9, and the repairing bags 4 are filled gradually with the repairing material 3, the repairing bags 4 are inflated along remaining furnace wall 10 and the repairing bags 4 of the repairing panel 2 are brought into contact with the repairing bags 4 of the neighboring panels 2 closely whereby a space between the repairing panel 2 and the furnace wall 10 may be filled gradually.

56. 发明专利

JPH02166207A VESSEL FOR MOLTEN METAL OF IRON TAPPING TROUGH AND THE LIKE 失效
公开(公告)号：JPH02166207A
公开(公告)日：1990-06-26
申请号：JP32230288
申请日：1988-12-20
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： YAMANE TOSHIO , MITSUI HARUO , OGUCHI MASAO , KAWAKAMI TATSUO
IPC分类号： C21B7/14
摘要： PURPOSE:To shorten working time for lining and to extend the service life thereof by fitting refractory block body having symmetrical shape at inner side face and outer side face in the lining of a vessel for molten metal and making changeable of the outer side face side to the inner side face side. CONSTITUTION:The vessel 1 for molten metal charging the molten metal of an iron through a tapping trough, etc., in a blast furnace are formed by arranging permanent lining bricks 3 and base material 4 for trough material at inner side of iron shell 2 in the outer circumferential part and fitting the refractory block body 6 through castable refractory body 5 at the inner side thereof. Then, this refractory block body 6 is formed with a bottom face side refractory block body 8 composed of symmetrical plate shape at upper and lower sides and refractory block bodies 7 for side face sides composed of symmetrical trapezoid shape cross section at right and left inserted into both sides of the above body 8. By this constitution, the outer side face side of the refractory block bodies 7, 8 is made to changeable by reusing to the inner side face side, and the working time of the lining is shortened and the service life thereof is extended.

57. 发明专利

JPH01270638A HOT STRENGTH TESTER 失效
公开(公告)号：JPH01270638A
公开(公告)日：1989-10-27
申请号：JP10100788
申请日：1988-04-22
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MITSUI HARUO , HAYASHIDA SHIGERU , YAMANE TOSHIO , KAWAKAMI TATSUO
IPC分类号： G01N3/18 , G01N3/60
摘要： PURPOSE:To perform a test in a testing furnace having small capacity, by arranging sample pieces on a rail at a definite pitch to send the same into a strength tester. CONSTITUTION:In a testing furnace (electric furnace) 1, a furnace lid 3 is mounted to the upper surface of a furnace wall 2 formed into a U-shaped slightly oblong cross- section in an openable and closable state and sample pieces 5 such as refractory tiles are sent in the furnace from the sample piece inlet 4 thereof to be sent to a strength tester 6 while the tested sample pieces 5 are discharged from the freely openable and closable discharge port 8 provided to a furnace floor 7. A rail floor material 10 provided with rails 9 in parallel at a predetermined interval is arranged to the upper surface of the furnace floor 7 and the sample pieces 5 are arranged on the rails through spacers 11 to be mounted thereon and fed by a definite dimension by a moving apparatus (electromotive cylinder) 12. The spacers 11 are made lower than the sample pieces 5 and depressed at the central parts thereof so as not to obstruct a transverse breaking strength. Heaters 24 are arranged to the furnace lid 3 at a definite interval and raise the temp. in the furnace 1 to predetermined temp. to heat the sample pieces 5. Inert gas blow-in pipes 25 are arranged on both sides of the furnace wall 2 at a definite interval and N2-gas blown in the furnace 1 to control an atmosphere in the furnace.

58. 发明专利

JPH01170545A METHOD FOR FORMING REVERSE T-SHAPE NOZZLE FOR POURING MOLTEN METAL AND CORE FOR FORMING NOZZLE 失效
公开(公告)号：JPH01170545A
公开(公告)日：1989-07-05
申请号：JP32916187
申请日：1987-12-24
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MITSUI HARUO , DAIMON MASAYA , HIGASHIHARA TAKESHI , TANAKA MASANOBU
IPC分类号： B22D25/02 , B22C9/10 , B22D41/08
摘要： PURPOSE:To simply and easily execute forming without any cracking by constituting an expanding part at upper end part of a core used by combining with a cylindrical mold with liquid freezing-solidified and elastic baggy part. CONSTITUTION:The liquid 6 is supplied in the elastic baggy part 42' through a communicating hole 5 of a core metal part 41' and held to the prescribed shape by expanding, and also by freezed-solidifying the liquid 6, the holding of the liquid is stabilized and after that, the lower end of the communicating hole 5 is closed to form the core 4'. Successively, the core 4' is combined and raw material 1 for forming is packed into cavity formed by this combination and further, after covering an upper cover 3, it is pressurized and formed. After forming, the mold separation of the upper cover 3 and the cylindrical mold 2 can be easily executed by drawing upward as the ordinary method.

59. 发明专利

JPH01167589A LINING OF CONTAINER FOR MOLTEN METAL WITH AMORPHOUS REFRACTORY 失效
公开(公告)号：JPH01167589A
公开(公告)日：1989-07-03
申请号：JP32783287
申请日：1987-12-23
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： IWASAKI HIDEO , MUROI NOBUAKI , OGURA KAZUHIRO , MITSUI HARUO , TORITANI YASUNOBU
IPC分类号： B22D41/02 , B28B1/08 , B28B19/00 , F27D1/16
摘要： PURPOSE:To carry out the lining of containers for molten metal in a simple manner and under good working conditions by pouring an amorphous refractory material into the space between the inner surfaces of a container for molten metal and the outer surfaces of a flexible bladder and, after curing, by drawing off fluid from the interior of the bladder, it is then removed. CONSTITUTION:A flexible bladder 6 is put into a container for molten metal 3 through the iron inlet 4 and fastened in place by a supporting means 9; after filling the bladder by pouring a fluid therein, an amorphous refractory material 12 is poured into the interior through the iron inlet 4 so as to be placed between permanent lining brick 5 and the flexible bladder 6 and cured. After the curing, the fluid in the bladder 6 is drawn off, the bladder-supporting means 9 is removed from the iron inlet 4, and the bladder 6 now having shrunk is removed from the iron inlet 4. By subsequent having and drying the amorphous refractory lining 12 is completed. Thus the work of forming a amorphous refractory lining can be simplified and an improvement can be achieved in the efficiency of the work and the conditions under which the work is carried out.

60. 发明专利

JPS62288175A VIBRATION FORMING REFRACTORIES 失效
公开(公告)号：JPS62288175A
公开(公告)日：1987-12-15
申请号：JP13206286
申请日：1986-06-06
申请人： KAWASAKI REFRACTORIES CO LTD
发明人： MITSUI HARUO , SATO KENICHI , TORITANI YASUNOBU , YAMANE TOSHIO , KAWAKAMI TATSUO
IPC分类号： C04B35/66 , C04B35/76

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