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1. 发明专利

JPH04325614A MOLTEN IRON PRE-TREATING AGENT FOR PRODUCING STAINLESS STEEL AND ITS MANUFACTURE 失效
公开(公告)号：JPH04325614A
公开(公告)日：1992-11-16
申请号：JP12177691
申请日：1991-04-25
申请人： KAWASAKI STEEL CO , KAWATETSU MINING
发明人： NIKO KIYOSUKE , YOSHIMOTO MASAAKI , AIHARA TSUNEO , HASEGAWA TSUNEYA , KOMAMURA SEI , WATANABE YOICHI , NAKAZAWA MANABU
IPC分类号： C21C1/02 , C21C1/04
摘要： PURPOSE:To provide a molten iron pre-treating agent effectively used at the time of producing a stainless steel in which treatment of wet OG dust is easy and safe and treating cost is low. CONSTITUTION:At the time of smelting the stainless steel, by drying the slurry of Cr and Ni-incorporating dust collected with the wet-type from unburnt gas recovery type converter in chromium ore smelting reduction process at

2. 发明专利

JPH059527A PRODUCTION OF LOW-P PIG 失效
公开(公告)号：JPH059527A
公开(公告)日：1993-01-19
申请号：JP15929291
申请日：1991-07-01
申请人： KAWASAKI STEEL CO , KAWATETSU MINING
发明人： AIHARA TSUNEO , NIKO KIYOSUKE , MARUSHIMA HIROYA , WATANABE YOICHI , HASEGAWA TSUNEYA , ITAYA HIROSHI , KOMAMURA SEI , TAMURA NOZOMI , USHIJIMA TAKASHI , SATO KAZUHIKO , KUSAKABE TARO , TSUNAKAWA TORU , MASUMOTO SHINICHI , NAKAZAWA MANABU , SATO YUKIO , KATAYAMA EIJI
IPC分类号： C21B11/02
摘要： PURPOSE:To inexpensively and easily mass-produce low-P pig without using an electrolytic method or low-P carbonaceous material. CONSTITUTION:A carbonaceous material packed type smelting reduction furnace 1 having two-stage tuyeres 2, 3 is used and the gas temp. at the furnace top is kept at >=700 deg.C. Particulate metal oxides contg. >=20% FeO are blown into this furnace from the upper-stage tuyere 2. The dephosphorization reaction in the furnace is accelerated in this way and the P entering from the carbonaceous material and raw materials is evaporated and the vapor thereof is discharged together with the furnace top exhaust gases, by which the low-P pig is produced.

3. 发明专利

JPH11132663A DRYER AND DRYING METHOD FOR CITY GARBAGE 失效
公开(公告)号：JPH11132663A
公开(公告)日：1999-05-21
申请号：JP29265897
申请日：1997-10-24
申请人： KAWASAKI STEEL CO
发明人： SUMI MASAYUKI , NAKANISHI KATSUYUKI , AIHARA TSUNEO
IPC分类号： F26B25/00 , B09B3/00
摘要： PROBLEM TO BE SOLVED: To produce city garbage of target moisture content easily and accurately by making a decision that an object to be dried has dried up when the temperature rise thereof exceeds a preset level. SOLUTION: A large number of thermocouples 3 for measuring the temperature of an object to be dried through direct contact are arranged in each drying chamber 1 and a temperature measurement 7 is inputted through a thermometer 4 to a controller 20. The controller 20 compares the measurement 7 with a target temperature rise rate and decides completion of dry up. The decision result is delivered as an open/close signal 8 for a damper 6 for discharging a dried object 15 from the drying chamber 1. The target temperature rise rate for deciding completion of dry up is determined by previously performing the dry up experiment of city garbage and determining the relationship between the temperature rise rate and the moisture content during a reduced rate dry up interval.

4. 发明专利

JPH09108698A AMMONIACAL LIQUID TREATMENT 失效
公开(公告)号：JPH09108698A
公开(公告)日：1997-04-28
申请号：JP27152395
申请日：1995-10-19
申请人： KAWASAKI STEEL CO
发明人： HOTTA TSUGIO , SUGIBE HIDETAKA , TAKAHASHI YUTAKA , OZAWA TATSUYA , AIHARA TSUNEO
IPC分类号： C02F3/12 , C02F1/20 , C02F9/00
摘要： PROBLEM TO BE SOLVED: To provide a method of treating ammoniacal liquid in which treatment cost is lowered. SOLUTION: Ammoniacal liquid still treatment water 5 is sent to an acidic tank 17 to make it acidic water 19 adjusted to an acidic area of about pH3-5. The acidic water 19 is sent to a filter 14 and is separated into filtrate 15 and filter cake 16. The filtrate 15 is sent to a neutralization tank 6 to turn it into neutralized water 30 adjusted to about pH7. The neutralized water 30 is sent to an aeration tank 9 together with dilution water 10 and is subjected to activated sludge treatment by using microorganisms in the aeration tank 9. Neutralized water 30a is discharged as discharge water to outside the system via a flocculating and settling basin 11 and an activated carbon adsorption tank 12. Further, the filter cake 16 is sent to a combustion facility 24 to subject it to combustion treatment.

5. 发明专利

JPH0958815A TRANSPORT TRUCK 失效
公开(公告)号：JPH0958815A
公开(公告)日：1997-03-04
申请号：JP22152395
申请日：1995-08-30
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： YUKI KATSUHIKO , YASUDA TANEMITSU , AIHARA TSUNEO , OZAWA TATSUYA
IPC分类号： B65G1/00 , B60L5/00 , B65G1/04 , B65G43/00
摘要： PROBLEM TO BE SOLVED: To supply electric power to a transport truck moved inside of a receiving facility including plural stairs even on the lifter provided with no electric power supply means. SOLUTION: A current collector 22 capable of touching a trolley wire 21 arranged a long the track 7 of a transport truck 6 on each stair of a receiving facility is provided on the main body 12 of the transport truck and also a driving means is provided for making the current collector 22 to be elongated to touch the trolley wire 21 or retreated to be stored inside of the transport truck when the transport truck is placed on a lifter making ascending and descending motion.

6. 发明专利

JPH07243812A METHOD AND APPARATUS FOR MEASUREMENT OF WORN-OUT AMOUNT OF OVEN WALL OF COKE OVEN 失效
公开(公告)号：JPH07243812A
公开(公告)日：1995-09-19
申请号：JP3350294
申请日：1994-03-03
申请人： KAWASAKI STEEL CO
发明人： OSADA YASUSHI , AIHARA TSUNEO , SUGIBE HIDETAKA
IPC分类号： G01B11/00 , C10B41/00 , F27D1/00 , G01C3/06
摘要： PURPOSE:To measure the worn-out amount of the right oven wall and the left oven wall of a carbonization chamber with high accuracy by a method wherein a criterion value which has been corrected according to the advance direction of a ram head is subtracted from a measured value. CONSTITUTION:A plurality of sensors 1 are installed at equal intervals in the height direction at a ram head 2 for an extruder. The extruder is pushed into from the entrance part of a carbonization chamber, a distance up to an oven wall 6 is the measured by a correction sensor 8 at the junction part of the head 2 to a rod 3 and an initial measured value t1 is used as a criterion value in the width direction of the carbonization chamber. At the same time, measurements in the width direction are performed by the individual sensors 1, and individual measured values L1, L2, L3,... are obtained. Then the extruder is advanced, the rod 3 is moved by a distance between correction sensors 8, 9, and a distance t up to the oven wall 6 is measured by the sensor 9 in a state that the rod 3 has been deformed thermally. At this time, the criterion value t1 is regarded as having been changed by (t1-t2)=DELTAt. When the worn-out amount of the oven wall is found, it is corrected by DELTAt. When measured values by the individual sensors 1 at this time are designated as M1, M2, M3,..., worn- out amounts.of the oven wall are M1-t1+DELTAt, M2-t1+DELTAt, M3-t1+DELTAt,....

7. 发明专利

JPH07126648A METHOD FOR REMOVING SOOT BETWEEN GAS MIXING CHAMBER AND HIGH-TEMPERATURE TUYERE IN VERTICALLY FORMED COKE DRY DISTILLATION OVEN 失效
公开(公告)号：JPH07126648A
公开(公告)日：1995-05-16
申请号：JP27205993
申请日：1993-10-29
申请人： KAWASAKI STEEL CO
发明人： TAKAHASHI YUTAKA , ISHIBASHI GENICHI , HOTTA TSUGIO , SUGIBE HIDETAKA , AIHARA TSUNEO , OZAWA TATSUYA
IPC分类号： C10B43/10 , C10B47/10 , C10B53/08
摘要： PURPOSE:To easily and automatically remove soot adhered to part of the gas feed pipelines of a vertically formed coke oven without stopping the operation of a dry distillation oven. CONSTITUTION:The dry distillation gas discharged via the top of a vertically formed coke dry distillation oven or a fuel gas is divided into hot gas burned with a burner and another hot gas heated through a heat exchanger, and these two kinds of gases are mixed again in a mixing chamber to change into a high-temperature dry distillation gas, which is then fed, into the vertically formed coke dry distillation oven, through its high-temperature tuyere. In this case, the channel on the side of the heat exchanger 9 is fed, as necessary, with an oxygen-contg. gas 20 or steam 19, thereby, removing soot from the gas feed pipelines of the dry distillation oven.

8. 发明专利

JPH06330046A PRODUCTION OF FORMED COKE 失效
公开(公告)号：JPH06330046A
公开(公告)日：1994-11-29
申请号：JP11963193
申请日：1993-05-21
申请人： KAWASAKI STEEL CO
发明人： OSADA YASUSHI , AIHARA TSUNEO , IMAIZUMI FUJIO
IPC分类号： C10B3/02 , C10B53/08 , C10B57/04 , C10B57/10
摘要： PURPOSE:To efficiently obtain formed coke by heating part of the coke oven gas produced in a dry distillation oven with a continuous heat exchanger and returning the gas to the oven and by using the combustion exhaust gas generated as heat source for adjusting moisture content of coal to effect energy saving. CONSTITUTION:A dryer 2 is fed with coal 1 which is, in turn, fed with the combustion exhaust gas 14 at 250-300 deg.C generated from a continuous heat exchanger 10 to adjust moisture content of the coal 1, and the exhaust gas 27 passed through the dryer 2 is freed from dust using a dust remover 26 and the resultant exhaust gas 28 is released via a stack 13 into the air. The moisture-adjusted coal is then regulated in granular size with a grinder 3, being kneaded with a binder 20 and hot water 21 using a kneader 4 and made into formed coal 12 with a molding machine 5. Subsequently, the formed coal 12 is loaded in a dry distillation oven 6, being heated directly with hot air 24, 25 to conduct dry distillation to produce formed coke 7 which is then discharged via the oven bottom out of the oven. For the hot air 24, 25 for dry distillation, part of the coke oven gas 16 generated in the dry distillation oven 6 is heated with a high-temperature gas heater 11 and further heated with the continuous heat exchanger 10 and then returned to the dry distillation oven 6.

9. 发明专利

JPH0688112A DEVICE FOR DISCHARGING RESIDUAL MOLTEN IRON IN TAPPING TROUGH AND DEVICE FOR OPERATING STOPPER 失效
公开(公告)号：JPH0688112A
公开(公告)日：1994-03-29
申请号：JP23704692
申请日：1992-09-04
申请人： KAWASAKI STEEL CO
发明人： HASEGAWA TSUNEYA , AIHARA TSUNEO , KIMURA MASAJI , NIKO KIYOSUKE , IMAIDA YASUO
IPC分类号： C21B7/14
摘要： PURPOSE:To provide a stopper type simple and safe residual molten iron discharging device and the stopper operating device in a skimmer type molten iron tapping trough in a blast furnace, etc. CONSTITUTION:In the skimmer type molten iron tapping trough in the blast furnace, etc., a cut-through groove 11 is formed at the trough wall side part of stand-up part 5' in the flow behind a skimmer damper and the stopper 12 is inserted in this groove 11. By vertically operating the stopper with a stopper operating device being vertically movable and normally/reversely turnable, the residual molten iron discharging work can be executed in short time.

10. 发明专利

JPH059529A TREATMENT OF IRON MAKING DUST 失效
公开(公告)号：JPH059529A
公开(公告)日：1993-01-19
申请号：JP15929191
申请日：1991-07-01
申请人： KAWASAKI STEEL CO
发明人： TAMURA NOZOMI , NIKO KIYOSUKE , AIHARA TSUNEO , TAGUCHI SEIJI
IPC分类号： C21B11/02 , C22B7/02
摘要： PURPOSE:To recover iron making dust as a molten metal with fewer stages by drying the iron making dust without pelletizing the dust, charging the dust together with coke from the top of a shaft furnace or drying and pulverizing the dust and supplying the powder into the furnace from the tuyere thereof. CONSTITUTION:The iron making dust 9 is collected by a wet dust collector 8 and is thickened and dehydrated by a thickener 7 and a dehydrator 6. The dehydrated dust is charged together with the coke 15 from the top of the shaft furnace into a hopper 11. Or the dust is further dried and pulverized by a drying device 5 using waste combustion gases, etc., and the powder is blown together with hot wind from the tuyere 3 into the shaft furnace 1.

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