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1. 发明专利

JPS61270318A METHOD FOR CONTROLLING OPERATION OF BLAST FURNACE 失效
公开(公告)号：JPS61270318A
公开(公告)日：1986-11-29
申请号：JP11266385
申请日：1985-05-25
申请人： KOBE STEEL LTD
发明人： OKIMOTO KENICHI , INABA SHINICHI , ONO REIJI , NOMA FUMIO
IPC分类号： C21B5/00 , C21B7/24
摘要： PURPOSE:To stabilize the operation of a blast furnace by estimating the grain size of the raw material in the blast furnace based on the discharge time of the blast furnace raw material from a surge hopper and adjusting the grain size of the raw material to be charged according to such estimation. CONSTITUTION:A positive primary correlation exists between the discharge time of the blast furnace raw material to be discharged from a surge hopper and and the average grain size of the raw material in the blast furnace. The discharge time of the blast furnace raw material from the surge hopper is detected in accordance with said correlation and the average grain size of the raw material in the blast furnace is estimated. The estimated result is fed back to the grain size adjustment of the raw material charged into the blast furnace and the blast furnace raw material having the desired grain size is selected. The point to be fed back may be the stage of kneading the raw material. The blast furnace operation is stabilized by such controlling method.

2. 发明专利

JPS6465207A METHOD FOR CONTROLLING FURNACE CORE SOLID REDUCING AGENT LAYER IN BLAST FURNACE OPERATION 失效
公开(公告)号：JPS6465207A
公开(公告)日：1989-03-10
申请号：JP22098187
申请日：1987-09-03
申请人： KOBE STEEL LTD
发明人： ISOBE MITSUTOSHI , KIMURA YOSHIO , SHIMIZU SHOKEN , HORI RYUICHI , NOMA FUMIO , KAMIJO TSUNAO
IPC分类号： C21B5/00
摘要： PURPOSE:To improve the air permeability in the furnace core part of a blast furnace so that the blast furnace waves are stabilized, the operating efficiency of the blast furnace is improved and the life of the blast furnace is extended by charging a specified amt. of good-quality coke having excellent air permeability to the furnace core part at the time of the blast furnace operation. CONSTITUTION:The good-quality lump coke CB having the excellent air permeability and liquid permeability is charged into th central part of an ore layer O and thereafter, the ordinary coke CA is charged around the coke CB in order to improve the air permeability in the furnace core part and to stabilize the furnace waves at the time of forming raw material layers by alternately charging the coke CA and the ore O from the blast furnace top. A relation rt>=0.03Rt is maintained between the radius Rt of the raw material layer in the furnace top part and the radius rt in the axial central part of the furnace and the ratio of the good-quality coke CB to be charged to the rt part is maintained at >=0.2% of the total coke quantity so that the ratio of the good-quality coke occupied in the furnace core coke C0 in the bottom part attains about >=5%.

3. 发明专利

JPS58221207A Detection of abnormality in transport piping for blowing powder fuel into blast furnace 失效
标题翻译：用于将粉末燃料吹入火炉的运输管道中的异常检测
公开(公告)号：JPS58221207A
公开(公告)日：1983-12-22
申请号：JP10459182
申请日：1982-06-16
申请人： Kobe Steel Ltd
发明人： TANAKA KOUZOU , TAMADA SHINICHI , MIZOKAWA TAKUMI , NOMA FUMIO
IPC分类号： G01F1/00 , C21B5/00 , C21B7/00 , C21B7/24 , G01M3/28
CPC分类号： C21B5/003
摘要： PURPOSE:To detect exactly the abnormality in a transport piping for blowing power fuel into a blast furnace by measuring air quantity discretely with each of branch pipes for blowing hot wind, and detecting the abnormality in the supply of the powder fuel. CONSTITUTION:An airflow meter 1 for branch pipe is provided to a branch pipe for blowing hot wind to be connected to each tuyere 4 and the abnormal change in the hot air quantity in each branch pipe is detected, in blowing of powder fuel into a blast furance. If the rate of blowing of the powder fuel into the hot wind branch pipe is decreased by the trouble in a transport pipe 5 for powder fuel during the operation of the blast furnace, the flow rate of the hot wind in the hot wind branch pipe increases. The abnormality in the supply of the powder fuel is detected from an abnormal change in the hot wind quantity in the branch pipe in accordance with the relation thereof, and the abnormality in the pipe 5 is detected from said abnormality. The abnormality such as clogged piping, ruptured piping or the like in the transport piping for blowing is detected by the above-mentioned method.
摘要翻译：目的：准确检测输送管道中的异常情况，以便通过与用于吹热风的各支管分别测量空气量并检测粉末燃料的供应异常来将动力燃料吹入高炉。构成：将用于分支管的气流计1设置到用于吹送风的连接管，以连接到每个风口4，并且检测每个分支管中的热空气量的异常变化，将粉末燃料吹入鼓风保险如果在高炉运转中粉末燃料的输送管5中的故障导致粉末燃料吹入热风支管中的速度降低，则热风支管中的热风的流量增加。根据其关系，从分支管中的热风量的异常变化来检测粉末燃料的供给异常，并且根据所述异常检测管5的异常。通过上述方法检测用于吹送的输送管道中的管道堵塞，管路破裂等异常。

4. 发明专利

JP2003105452A METHOD FOR PRODUCING REDUCED METAL 审中-公开
公开(公告)号：JP2003105452A
公开(公告)日：2003-04-09
申请号：JP2001301449
申请日：2001-09-28
申请人： KOBE STEEL LTD
发明人： SHIMIZU SHOKEN , NOMA FUMIO , KASAI AKITO , TOKUDA KOJI , KOBAYASHI ISAO
IPC分类号： C22B5/10 , C21B11/00 , C22B1/14 , C22B7/00 , C22B7/02
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a reduced metal excellent in the productivity while avoiding erosion of a refractory, as the method for producing the reduced metal by heating and reducing an oxidized metal, such as ore, by using a molten metal bath together with a carbonaceous reducing agent, such as carbonaceous material. SOLUTION: Mixture D of the oxidized metal raw material A and the carbonaceous reducing agent B is pressurize-formed at 250-550 deg.C and a formed body E having >=2.1 g/cm apparent density is produced, and this body E is dipped into molten slag L on the molten metal bath K. CO gas generated from the formed body E is secondarily burnt by blowing oxygen gas F into the molten slag L, and the formed body E is heated through the molten slag L with this secondary combustion heat and the oxidized metal in the formed body E is reduced and melted to produce the reduced metal.

5. 发明专利

JP2002235105A METHOD FOR OPERATING LOW Si MOLTEN IRON BY INJECTION OF PULVERIZED FINE COAL AT HIGH RATIO IN BLAST FURNACE 失效
公开(公告)号：JP2002235105A
公开(公告)日：2002-08-23
申请号：JP2001030984
申请日：2001-02-07
申请人： KOBE STEEL LTD
发明人： MORI TSUGURO , MATSUI YOSHIYUKI , NOMA FUMIO
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for operating low Si molten iron by injection of pulverized fine coal at high ratio in a blast furnace by which increase of Si concentration in molten iron faced when the pulverized fine coal is stably injected at a ratio of >=100 kg/thm, further >=150 kg/thm into the blast furnace, is restrained to low level. SOLUTION: In the blast furnace operation by the injection of the pulverized fine coal for injecting the pulverized fine coal at high ratio such as >=100 kg/ton of pig iron, basic flux is injected together with the pulverized fine coal from a tuyere in the blast furnace so as to disperse both injected materials, and also, a part of coke charged into the furnace is charged into the center part of the blast furnace.

6. 发明专利

JPH058247B2 失效
公开(公告)号：JPH058247B2
公开(公告)日：1993-02-01
申请号：JP22099187
申请日：1987-09-03
申请人： KOBE STEEL LTD
发明人： HORI RYUICHI , NOMA FUMIO , SHIMIZU SHOKEN
IPC分类号： C21B5/00

7. 发明专利

JPH0377844B2 失效
公开(公告)号：JPH0377844B2
公开(公告)日：1991-12-11
申请号：JP22098487
申请日：1987-09-03
申请人： KOBE STEEL LTD
发明人： HORI RYUICHI , NOMA FUMIO
IPC分类号： C21B5/00

8. 发明专利

JPS6465212A METHOD FOR OPERATING BLAST FURNACE 失效
公开(公告)号：JPS6465212A
公开(公告)日：1989-03-10
申请号：JP22099187
申请日：1987-09-03
申请人： KOBE STEEL LTD
发明人： HORI RYUICHI , NOMA FUMIO , SHIMIZU SHOKEN
IPC分类号： C21B5/00
摘要： PURPOSE:To discharge a low melting point circulation metal to the outside of a blast furnace so that the volume of the metal accumulated in the blast furnace is decreased by charging a specific quantity of coke to the central part of ore layers to increase the air permeability and temp. in the central part of the blast furnace in the blast furnace operation to alternately form coke layers and the ore layers in the blast furnace. CONSTITUTION:Blasting is executed to heat and reduce the ore while the coke layers and ore layers formed by alternately charging the coke and ore to the blast furnace from the furnace top are allowed to descent and the ore is heated and reduced. The coke is charged to the central part of the ore layers at >=0.2pts.wt. when the quantity of the charge coke to form the respective coke layers is designated as 100pts.wt. in this blast furnace operation. The (ore/coke) ratio in the central part is thereby lowered and the heat flow ratio is lowered, by which the gas temp. is increased and the air permeability is improved. The low melting point metal vapor (Zn and alkali metals, etc.) accompanied by the central gaseous flow is thereby prevented from condensing and settling and is released together with the furnace top gas, by which the volume of the metal vapor accumulated in the furnace is decreased.

9. 发明专利

JPS62290809A RAW MATERIAL CHARGING METHOD FOR BLAST FURNACE 失效
公开(公告)号：JPS62290809A
公开(公告)日：1987-12-17
申请号：JP13403786
申请日：1986-06-10
申请人： KOBE STEEL LTD
发明人： YATANI SUSUMU , HONDA KEISUKE , NOMA FUMIO
IPC分类号： C21B5/00
摘要： PURPOSE:To maintain stable center gas flow in a blast furnace by charging most of necessary cokes on the whole cross section of the blast furnace as layer and separately charging the remained cokes at the center part of the furnace. CONSTITUTION:The most of necessary cokes are charged as changing gradually the discharging part at lower end part of a rotating chute 11 from inclined angle theta1 in the range from the middle point between the furnace center and the furnace wall 12 to the furnace wall 12, to form the coke layer 14 on ore layer 13. Then, as the coke in the coke layer 14 is gradually flowed from the furnace wall side toward the furnace center part, the layer thickness is almost uniformized. Next, the rotating chute 11 is positioned at the furnace center line, and the remaining cokes are charged to form slightly elevated coke boundary 14a at the center part on the coke layer 14. Further, the ore layer 13 is formed on this, to obstruct flowing of the ore further into the center part by the center part coke boundary 14a. In this way, the coke layer 14 and the ore layer 13 are piled alternately and in the furnace center part, the columnar coke boundary composing of coke only is formed.

10. 发明专利

JP2003328043A Process for manufacturing sintered ore 有权
标题翻译：制造烧结炉的工艺
公开(公告)号：JP2003328043A
公开(公告)日：2003-11-19
申请号：JP2002143126
申请日：2002-05-17
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MATSUMURA TOSHIHIDE , NOMA FUMIO
IPC分类号： C22B1/16
摘要： PROBLEM TO BE SOLVED: To provide a process for manufacturing a sintered ore which does not require excessive facility cost, even by using a large amount of ores having a large water-holding capacity in an exhaust gas circulatory system and maintains or improves a productivity and a yield of the produced sintered ore by maintaining or improving a permeability of a sintered layer by maintaining or reducing a moisture content in the circulated exhaust gas without drastically increasing the production cost.
SOLUTION: First, the ore material for sintering is classified into a first type of raw materials containing the ore material having a large water-holding capacity and a second type of raw materials comprising other ore materials, and auxiliary materials and solid fuels are separately added to each type. Then, a higher concentration of an additive comprising an organic fiber a clay material and an organic binder is selectively added in a high concentration to the first type. After mixing and granulating the raw materials into pseudo-particles, the pseudo-particles of both types are mixed and sintered through a conventional procedure.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使在废气循环系统中使用大量的具有大的保水能力的矿石，也提供了不需要过度设备成本的烧结矿的制造方法，并且维持或改善通过维持或提高循环废气中的含水量而保持或提高烧结层的渗透性，而不会显着提高生产成本，可以提高生产率和产量。解决方案：首先，用于烧结的矿石材料被分为含有具有大的保水能力的矿石材料的第一类原料和包含其他矿石材料的第二类原料，辅助材料和固体燃料分别添加到每种类型。然后，以高浓度选择性地添加包含粘土材料和有机粘合剂的有机纤维的添加剂的浓度较高的第一种类型的添加剂。将原料混合并造粒成假颗粒后，通过常规方法将两种类型的假颗粒混合并烧结。版权所有（C）2004，JPO

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