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31. 发明专利

JPH05222422A SMELTING REDUCTION METHOD FOR ORE USING COKE PACKING LAYER TYPE SMELTING REDUCTION FURNACE 失效
公开(公告)号：JPH05222422A
公开(公告)日：1993-08-31
申请号：JP2124392
申请日：1992-02-06
申请人： KAWASAKI STEEL CO
发明人： WATANABE YOICHI , NIKO KIYOSUKE , AIHARA TSUNEO , HASEGAWA TSUNEYA
IPC分类号： C21B11/02 , F27B17/00
摘要： PURPOSE:To omit exhaust gas treating equipment, such as cyclone, venturi scrubber, thickener, or wet type exhaust gas treating equipment, such as venturi scrubber, thickener, and to utilize the exhaust heat to dry raw material. CONSTITUTION:The high temp. exhaust gas discharged from a coke packing layer type smelting reduction furnace 14 is directly supplied into a spray dryer 10, and sensible heat of the exhaust gas is utilized as the heat source for drying slurry-state raw material powder, and the drying of the raw material powder and collection (recovery) of dust in the exhaust gas after recovering the exhaust heat, are executed.

32. 发明专利

JPH05202407A SMELTING REDUCTION METHOD OF ORE USING COKE PACKING TYPE SMELTING REDUCTION FURNACE 失效
公开(公告)号：JPH05202407A
公开(公告)日：1993-08-10
申请号：JP1186992
申请日：1992-01-27
申请人： KAWASAKI STEEL CO
发明人： WATANABE YOICHI , NIKO KIYOSUKE , AIHARA TSUNEO , HASEGAWA TSUNEYA
IPC分类号： C21B13/02 , C22B5/10
摘要： PURPOSE:To make exhaust gas treatment equipment, etc., unnecessary by directly atomizing slurry raw material powder into a furnace from an atomizer arranged at the furnace top, drying, and collecting dust in the exhaust gas into the raw material powder by adsorption and reusing. CONSTITUTION:The slurry raw material powder produced at the other section is concentrated through a thicker 5 and a decanter 6 and atomized in the furnace by an atomizer 2 arranged at the furnace top of the vertical type smelting reduction furnace 1. The atomized slurry raw material powder is heated and dried with the high temp. exhaust gas in the furnace to be made into the dried raw material powder and the dust in the exhaust gas is absorbed and a part thereof is dropped in the furnace. The other large part of the raw material powder is discharged into a cyclone 7 together with the exhaust gas, and mixed material of the dried raw material powder and the dust in the exhaust gas piled and collected in the bottom part thereof are charged into a storing vessel 8. The mixed material in the storing vessel 8 is further injected into the furnace from a tuyere 3 through a uniform discharge pressure hopper 9 and an injection tank 10 and reused. By this method, the maintenance operating cost of the equipment and conveying cost of the recovery dust, etc., can be reduced.

33. 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

34. 发明专利

JPS54149305A Partial replacement of steel shell 失效
标题翻译：部分替代钢壳
公开(公告)号：JPS54149305A
公开(公告)日：1979-11-22
申请号：JP5852278
申请日：1978-05-17
申请人： Kawasaki Steel Co
发明人： AIHARA TSUNEO
IPC分类号： C21B9/10 , C22B9/00 , F27D1/00

35. 发明专利

JP2000180062A DRYING METHOD OF REFUSE 失效
公开(公告)号：JP2000180062A
公开(公告)日：2000-06-30
申请号：JP35298798
申请日：1998-12-11
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI KATSUYUKI , SUMI MASAYUKI , AIHARA TSUNEO
IPC分类号： C10L5/46 , F26B17/00 , F26B25/00
摘要： PROBLEM TO BE SOLVED: To achieve a target moisture rate after dry up easily and inexpensively by arranging a heating plate and stirring blade in a drying tank and performing uniform mixing, stirring and thermal drying in units of drying tank thereby making uniform the drying time of city refuse being fed continuously at a specified processing speed. SOLUTION: A dryer 1 comprises a six stag vertical drying tank 2 into which crushed city refuse 3 is fed from an upper hopper 4 through a screw feeder 5. Each drying tank 2 is arranged with a stirring blade 6 being driven through a rotary driver 7 and provided with an indirect heating jacket 6 for heating city refuse in the drying tank 2, and a potentiometer 9 for measuring the height of refuse layer in the drying tank 2 continuously. The potentiometer 9 delivers a measurement signal 34 to a control 31 which controls opening/ closing of a damper 10 provided for each drying tank with a damper open/close signal 35 depending on the measurement signal 34.

36. 发明专利

JPH11315291A PROCESS AND APPARATUS FOR PRODUCING SOLID FUEL 失效
公开(公告)号：JPH11315291A
公开(公告)日：1999-11-16
申请号：JP5011499
申请日：1999-02-26
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI KATSUYUKI , SUMI MASAYUKI , AIHARA TSUNEO
IPC分类号： B09B3/00 , C10L5/46 , C10L5/48
摘要： PROBLEM TO BE SOLVED: To produce a solid fuel while avoiding its contamination by harmful components and while drying it at a high efficiency by supplying a drying gas contg. no harmful component to a drying step in a solid fuel production process. SOLUTION: In producing a solid fuel from wastes by using a combustion gas of combustible substances as a heat source of drying, steam 35 is generated by a waste heat boiler 34 by using the combustion gas as the heat source and is used in the drying step 8, and simultaneously the combustion gas is subjected to heat exchange with circulating air 52 through a partition wall in an air heater 40, and thus heated air is sent to the gas drying step 50 to be used for drying.

37. 发明专利

JPH11270819A TREATMENT OF URBAN WASTE 失效
公开(公告)号：JPH11270819A
公开(公告)日：1999-10-05
申请号：JP7680198
申请日：1998-03-25
申请人： KAWASAKI STEEL CO
发明人： SUMI MASAYUKI , NAKANISHI KATSUYUKI , AIHARA TSUNEO
IPC分类号： B09B3/00 , F23G5/00 , F23G5/02 , F23G5/04 , F23G5/46
摘要： PROBLEM TO BE SOLVED: To restrict the discharging of harmful substances such as dioxine or the like and to enable the effective utilization of energy by adding slaked lime to an urban waste, drying the waste such that the moisture percentage becomes not more than a given level, and burning the waste by a combustion boiler. SOLUTION: In a method for burning a so-called urban waste containing a raw refuse without forming the refuse into a solid fuel, slaked lime is added to the urban waste and is dried until the moisture percentage becomes not more than 10% by weight. The urban waste under such condition is called as a dried fluff and has a high calorific value of 3,500-4,000 kcal/h and this value is stable for a long time. To lower the moisture percentage not more than 10% by weight, an indirect heating method using steam is adopted, wherein the urban waste is dried for approximately one hour at a temperature of 120 deg.C. Furthermore, an amount of addition of slaked lime may be usually approximately 1-2% by weight for the urban waste. This fluff is effective to the reduction of dioxine at the time of combustion which requires a low moisture content and a uniformity. Furthermore, to make use of heat energy of an exhaust gas generated by the combustion boiler, the recovery of the steam and power generation are performed.

38. 发明专利

JPH11267603A TREATMENT OF WASTE AND ITS DEVICE 失效
公开(公告)号：JPH11267603A
公开(公告)日：1999-10-05
申请号：JP7794698
申请日：1998-03-25
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI KATSUYUKI , SUMI MASAYUKI , AIHARA TSUNEO
IPC分类号： B09B3/00 , B09B5/00 , F23G5/033 , F23G5/04
摘要： PROBLEM TO BE SOLVED: To attain a continuous operation of an incinerator and to suppress a discharge of a harmful material by providing the first stage in which the waste such as city waste is crushed and screened, slaked lime is added, and the mixture is dried to form a powdery particle and the second stage in which the powdery particle is burned to generate steam and utilizing a part of the generated steam as a heat source for drying. SOLUTION: The city waste 1 is crushed by a crushing/screening machine 2 to screen and remove metals 3 such as iron, aluminum, etc., then the slaked lime supplied from an addition device 31 is added and dried with a drying device 5 to form the dried powdery particle 6 hardly causing putrefaction and malodor, and the particle 6 is stored in a storage tank 7. Then the particle 6 is burned in a combustion furnace 8 and the steam is generated in a boiler 10 by this combustion gas. A waste gas 15 is discharged to atmosphere after being treated at a waste gas treating stage 11. The generated steam 12 is used for an electricity generation and other heat utilization at a steam utilizing device 13 and also a part of the steam 21 is used as a drying heat source of the drying device 5, and the waste gas 22 of the drying device 5 is burned in the boiler 10 to deodorize and detoxicate.

39. 发明专利

JPH10311677A METHOD FOR DRYING GARBAGE OR INDUSTRIAL WASTE 失效
公开(公告)号：JPH10311677A
公开(公告)日：1998-11-24
申请号：JP12589397
申请日：1997-05-15
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI KATSUYUKI , SUMI MASAYUKI , AIHARA TSUNEO , MIYOSHI FUMIHIRO
IPC分类号： F26B3/06 , B09B3/00 , C09K3/00 , F26B9/06
摘要： PROBLEM TO BE SOLVED: To fully utilize the drying function of garbage or industrial waste and at the same time minimize a load for repairing and maintaining a drying device by adding a wall surface adhesion prevention material to the garbage or the industrial waste when indirectly heating and drying the garbage or the industrial waste. SOLUTION: Municipal garbage that is received by an upstream process and is crushed by a biaxial crushing machine is stored in a crushed object hopper 1 as crushed garbage 1, and then the crushed garbage 11 is fed into the drying container of an indirect-heating-type steam drying machine 3 via a fixed-amount supply equipment 2 that is attached to the crushed object hopper 1. In this case, a material 12 for preventing adhesion onto a wall surface is supplied to the crushed object hopper 1. For example, industrial slaked lime is used as the material 12 for preventing adhesion onto the wall surface, and the material for preventing adhesion onto the wall surface being stored in a silo is cut by a fixed amount using a rotary valve and is sent into the crushed object hopper 1 via a conduit with compression air being discharged from a blower for discharging the agent for preventing adhesion onto the wall surface.

40. 发明专利

JPH06235008A OPERATION OF SHAFT FURNACE 失效
公开(公告)号：JPH06235008A
公开(公告)日：1994-08-23
申请号：JP2140893
申请日：1993-02-09
申请人： KAWASAKI STEEL CO
发明人： AIHARA TSUNEO , NIKO KIYOSUKE , USHIJIMA TAKASHI
IPC分类号： C21B5/00 , C21B11/02
摘要： PURPOSE:To provide an operational method for shaft furnace, in which a consumed energy in the furnace can be reduced, by optimizing gas discharging velocity in the furnace opening part. CONSTITUTION:The gas velocity 3 at the furnace opening 2 part in the shaft furnace 1 is made to be 1.5+ or -0.2(m/s) and dust containing ash generated in the furnace is discharged to the outside of the furnace. In the case of being the ordinary gas velocity at 0.5-1.0(m/s), as the coke ash is not sufficiently discharged to the outside of the furnace and is melted in the furnace and discharged as molten slag, energy in the furnace is consumed uselessly. The attached figure show, 4: raceway at front of a tuyere, 5: coke combustion ash, 6: blasting, 7: discharging hole (iron tapping hole), 8: stock line.

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