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1. 发明专利

JPH03146204A PRODUCTION OF CAST IRON CLAD STEEL PRODUCT HAVING GOOD VIBRATION-DAMPING PROPERTY 失效
公开(公告)号：JPH03146204A
公开(公告)日：1991-06-21
申请号：JP28570389
申请日：1989-10-31
申请人： NIPPON STEEL CORP
发明人： KURIHARA KAZUHISA , HAJI TOSHIAKI , WAGURI SHINJIRO
IPC分类号： B21B1/38 , B32B15/01 , C21C1/08 , C21D8/02 , C22C37/00
摘要： PURPOSE:To produce the cast iron clad steel billet having an excellent vibration- damping property and excellent toughness and weldability by rolling a laminated iron steel billet formed by laminating a cast iron which consists of a molten iron added with either of Ca-Si or Fe-Si on a steel product under specific rolling conditions. CONSTITUTION:The cast iron formed by adding either of 0.1 to 20% Ca-Si or 0.1 to 20% Fe-Si, by weight %, to the molten iron having >=2.5% carbon equiv. regulated by C%+1/3 Si% and casting this molten iron, then solidifying the casting is laminated on the steel product to constitute the laminated iron steel billet. This laminated iron steel billet is heated to 900 to 1140 deg.C and is subjected to finish rolling at >=750 deg.C finishing temp. As a result, the cast iron clad steel product consisting of the flake graphite cast iron and the ordinary steel or special steel and having the excellent vibration-damping property and the excellent toughness and weldability is produced at a low cost with a high productivity.

2. 发明专利

JPS63282204A METHOD FOR OPERATING BLAST FURNACE 失效
公开(公告)号：JPS63282204A
公开(公告)日：1988-11-18
申请号：JP11556187
申请日：1987-05-12
申请人： NIPPON STEEL CORP
发明人： WAGURI SHINJIRO , ASHIMURA TOSHIKATSU , BABA MASAKI
IPC分类号： C21B5/00 , C21B7/24
摘要： PURPOSE:To regulate the distribution of the charge in the radial direction in the furnace and to stably and efficiently operate the blast furnace by sampling the charge in the region below the central part of the shaft of the blast furnace, and obtaining the analytical value information of the ZnO in the charge in a specified direction. CONSTITUTION:The charge is sampled in the region below the central part of the shaft of the blast furnace wherein the gas temp. is preferably kept at >=700 deg.C, and the ZnO in the charge in the radial direction in the furnace is analyzed. The distribution of the reduction rate in the furnace is obtained from the ZnO distribution information. The charge distribution in the furnace is further estimated from the distribution. The falling positions of the coke, ore, etc., to be charged into the furnace from blast furnace feeders are regulated so that the charge distribution is specified. By this method, the blast furnace is stably, efficiently, and continuously operated.

3. 发明专利

JPH0133523B2 失效
公开(公告)号：JPH0133523B2
公开(公告)日：1989-07-13
申请号：JP11982385
申请日：1985-06-04
申请人： NIPPON STEEL CORP
发明人： WAGURI SHINJIRO , MOCHIZUKI SHIRO , ANAMI KUNYOSHI , IDE EIJI
IPC分类号： C21B7/00 , B65G53/66 , C21B5/00

4. 发明专利

JPH01160929A COKE DRY TYPE FIRE-EXTINGUISHING DEVICE 失效
公开(公告)号：JPH01160929A
公开(公告)日：1989-06-23
申请号：JP31994687
申请日：1987-12-16
申请人： NIPPON STEEL CORP
发明人： SANADA TERUO , WAGURI SHINJIRO
IPC分类号： C07C39/02
摘要： PURPOSE:To obtain the title device capable of cooling to prescribed temperature without causing floating phenomenon of red-hot coke even if remarkable change occurs in red-hot coke temperature and treating amount per time, by providing pulling-out piping of cooling gas having pulling-out amount-adjusting equipment in a cooling tower body. CONSTITUTION:Inside and outside passing-through hole 22 is provided at nearly equal intervals on circumference of cooling tower body part wall and one end of pulling-out piping 30 consisting of adjust valve 14a, branched piping 14, ring header pipe 15, adjust valve 17 for adjusting total pulling-out gas amount and piping 16 connecting to pipe rout 9b of cooling gas in the upper stream side of cyclone 10 is connected to the passing through hole 22. Temperature of already cooled coke cut out on a discharge conveyer 6 is measured with 20 and the measured value is introduced into a cutting-out temperature control device 19 to control the opening of adjust valve 17 and rotating speed of blower 11 and blowing amount of cooling gas is adjusted to maintain temperature of already cooled coke to prescribed value or below. The distribution in circumferential direction of pulling-out amount of cooling gas is adjusted by the adjust valve 14a provided in the branched piping 14.

5. 发明专利

JPS6362827A PRODUCTION OF SINTERED ORE 失效
公开(公告)号：JPS6362827A
公开(公告)日：1988-03-19
申请号：JP20576786
申请日：1986-09-03
申请人： NIPPON STEEL CORP
发明人： WAGURI SHINJIRO , SASAKI MICHIO , INASUMI TADAHIRO , KONISHI MASARU , HARAFUJI SHOICHI
IPC分类号： C22B1/20
摘要： PURPOSE:To produce sintered ore having a high yield and strength with high efficiency by calculating the porosity part of specific size from the tomographic images obtd. by projecting radiation to the arbitrary cross section of the sintered ore and adjusting and controlling sintering conditions. CONSTITUTION:The radiation is projected and scanned to the arbitrary section of the sintered ore and the intensity of the transmitted radiation is detected. The above-mentioned operation is carried out from the circumference of the above-mentioned cross section and the image of the above-mentioned cross section is synthesized from the resulted intensity of the transmitted radiation. The radiation intensities by each of the constituting picture elements of the resulted image are segmented by the CT value of CT value (-)=(mus-muw)/muwxXK (where muw; coefft. of X-ray absorption of water, mus; coefft. of X-ray absorption of sample, K; constant). The ratio of the part where one size exhibiting the negative CT value exceeds 5mm with in the segment of the negative CT values is thereby calculated. The operating conditions for sintering are adjusted and controlled when the ratio exceeds 40%.

6. 发明专利

JPS61279605A PULVERIZED COAL FEEDER TO BLAST FURNACE 失效
公开(公告)号：JPS61279605A
公开(公告)日：1986-12-10
申请号：JP11982385
申请日：1985-06-04
申请人： NIPPON STEEL CORP
发明人： WAGURI SHINJIRO , MOCHIZUKI SHIRO , ANAMI KUNIYOSHI , IDE EIJI
IPC分类号： C21B7/00 , B65G53/66 , C21B5/00
摘要： PURPOSE:To operate stably a blast furnace at a low cost by providing a pulverized coal supplying system having the pulverized coal supplying capacity expresed by the specific equation when the blast furnace is going to be blown down in the event of a trouble in a coal crusher. CONSTITUTION:The pulverized coal supplying system having the pulverized coal supplying capacity to maintain at least the equation (AXB)+C=DXB when the blast furnace is going to be blown down by the trouble in the coal crusher is provided. A: the pulverized coal supplying capacity (weight/hour) of the remaining coal crusher except the defective coal crusher, B: the period (hour) for preparing the blowing down of the blast furnace, C: the storage capacity (weight) of th storage tank, D: the blowing rate (weight/time) of the pulverized coal to the blast furnace. More specifically, plural units of the crushers are provided to the pulverized coal supplying system and the number of the crushers having the possibility of getting out of order within 6-7hr in the period for preparing the blowing down of the blast furnace is preliminarily predicted and the required capacity of the storage tank is determined by making effective use of the remaining supplying capacity of the crusher group except such crushers.

7. 发明专利

JPH0629432B2 失效
公开(公告)号：JPH0629432B2
公开(公告)日：1994-04-20
申请号：JP6498088
申请日：1988-03-18
申请人： NIPPON STEEL CORP
发明人： SANADA TERUO , WAGURI SHINJIRO
IPC分类号： C10B39/02

8. 发明专利

JPS6157363B2 失效
公开(公告)号：JPS6157363B2
公开(公告)日：1986-12-06
申请号：JP2446480
申请日：1980-02-28
申请人： NIPPON STEEL CORP
发明人： EZAKI KAN , WAGURI SHINJIRO , TOKUNAGA MASAAKI
IPC分类号： C21B5/00

9. 发明专利

JPS61257405A METHOD AND APPARATUS FOR OPERATING BLAST FURNACE 失效
公开(公告)号：JPS61257405A
公开(公告)日：1986-11-14
申请号：JP9931385
申请日：1985-05-10
申请人： NIPPON STEEL CORP
发明人： WAGURI SHINJIRO , MOCHIZUKI SHIRO , INOUE YOSHIHIRO , HIGUCHI SHOJI
IPC分类号： C21B7/24 , C21B5/00
摘要： PURPOSE:To improve the reaction in a blast furnace and to contrive to improve productivity and maintenance characteristic of the furnace body, improve fuel ratio, etc., by operating the blast furnace in such a manner as to maintain adequately the temp. of the furnace core body measured by a probe inserted therein. CONSTITUTION:A furnace core sonde 1 holding the probe which has internally a glass fiber connected with an image processor and/or thermometer and has the length to permit the insertion into the core body 12 of the blast furnace 2 and the function to cool itself to a self-traveling carriage 11 is used. Such probe 10 is inserted into the furnace through a bent pipe 7 of a tuyere 5 for blowing hot air and an air shut-off device 9 provided in a rear part 8 in the lower part of a straight pipe 6 to measure the temp. of the body 12. The furnace is so operated as to maintain the measured temp. of the furnace core body at >=1,200 deg.C. The reaction in the furnace is thus improved by the good ventilation characteristic.

10. 发明专利

JPH01240593A DRY QUENCHING OF COKE AND DEVICE THEREFOR 失效
公开(公告)号：JPH01240593A
公开(公告)日：1989-09-26
申请号：JP6498088
申请日：1988-03-18
申请人： NIPPON STEEL CORP
发明人： SANADA TERUO , WAGURI SHINJIRO
IPC分类号： C10B39/02
摘要： PURPOSE:To prevent column bricks from collapsing, by setting a bypass piping to connect a cooling gas circulating line at the downstream side of a cooler to the vicinity of an air suction pipe and an air suction vent to a sloping flue and a flow rate control valve. CONSTITUTION:When a low-temperature cooling gas which has been discharged from a diffusion pipe 22 is directly sucked from the vicinity of an air suction vent 21b into a sloping flue 1c, temperature variability of column brick 10 to cause collapse of the column brick 10 is lessened with increase in the amount of the sucked low-temperature cooling gas and the temperature of the gas can be suppressed to 60-50 deg.C range not to lead to problems of operation. Further when the amount of the low-temperature cooling gas introduced is regulated corresponding to amounts of combustible gases such as H2 or CO evolved from coke in a cooling column 1 or an amount of air sucked from an air suction pipe 21 required for combustion of the gases, the temperature variability of the column brick 10 is further lessened.

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