公开(公告)号：EP2743357B1

公开(公告)日：2017-03-15

申请号：EP11870736.3

申请日：2011-12-06

申请人： Obschestvo s Ogranichennoi Otvetstvennostyu "Promyshlennyye Innovatsionnyye Tekhnologii Natsionalnoi Koksokhimicheskoi Assotsiatsii"

发明人： KOBELEV, Vladimir Andreevich ,  CHERNAVIN, Alexander Yurevich ,  CHERNAVIN, Daniil Alexandrovich ,  NECHKIN, Georgii Alexandrovich ,  STUKOV, Mikhail Ivanovich ,  ZAGAINOV, Vladimir Semenovich ,  KOSOGOROV, Sergey Alexandrovich ,  ZORIN, Maxim Viktorovich ,  POSOKHOV, Yury Mikhailovich ,  ANDREYKOV, Eugenii Josifovich ,  VALYAVIN, Gennady Georgievich ,  ZAPORIN, Viktor Pavlovich ,  SUKHOV, Sergey Vitalevich ,  BIDILO, Igor Viktorovich ,  MAMAEV, Mikhail Vladimirovich

IPC分类号： C21B5/00 ,  C21B5/02 ,  C21B5/04

CPC分类号： C21B5/02 ,  C21B5/007 ,  C21B5/04 ,  Y02P10/212

公开(公告)号：EP2653563A4

公开(公告)日：2017-03-08

申请号：EP11856085

申请日：2011-07-15

申请人： JFE STEEL CORP

发明人： FUJIWARA DAIKI ,  MURAO AKINORI ,  WATAKABE SHIRO ,  KITAHARA MASAYUKI

IPC分类号： C21B5/00 ,  C21B5/06 ,  C21B7/00 ,  C21B7/16

CPC分类号： C21B5/003 ,  C21B5/06 ,  C21B7/163 ,  C21B2005/005 ,  C21B2100/26 ,  C21B2100/60 ,  Y02P10/283

摘要： Provided is a method for operating a blast furnace in which further improvement in combustion temperature and further reduction of the specific consumption of reducing agents are possible. A double tube lance is used as a lance 4 through which reducing agents are injected into a blast furnace via a tuyere 3. By injecting a solid reducing agent such as pulverized coal 6 and an inflammable reducing agent such as an utility gas 9 through the double tube lance 4 and by setting the oxygen excess ratio of air blown to the tuyere 3 to be from 0.7 to 1.3, there is a significant increase in the temperature of the pulverized coal 6 due to the utility gas 9 which contacts O 2 contained in the blown air in first being burnt, which causes an increase in the heating rate of the pulverized coal 6 and the pulverized coal 6 being sufficiently burnt. As a result, there is a significant increase in combustion temperature, which makes it possible to reduce the specific consumption of reducing agents. At the same time, it is possible to prevent the double tube lance 4 from being deformed due to the increased temperature by setting the flow velocity at the exit of the outer tube of the double tube lance 4 to be from 20 m/sec to 120 m/sec.

摘要翻译： 本发明提供一种高炉的运转方法，能够进一步提高燃烧温度，并且能够进一步降低还原剂的比耗。 双管喷枪用作喷枪4，还原剂通过喷枪3通过风口3喷射到高炉中。通过双喷嘴将固体还原剂如煤粉6和可燃性还原剂如商用气体9喷射到高炉 通过将喷吹到风口3的空气的氧过剩率设定为0.7〜1.3，由于接触了包含在风筒3中的O 2的市电气体9，煤粉6的温度显着上升 首先吹入的空气被燃烧，这导致粉煤6和煤粉6充分燃烧的加热速率增加。 结果，燃烧温度显着增加，这使得可以减少还原剂的特定消耗量。 同时，通过将双管喷枪4的外管的出口处的流速设定为从20m / sec到120，可以防止由于升高的温度导致双管喷枪4变形 米/秒。

公开(公告)号：EP3124626A1

公开(公告)日：2017-02-01

申请号：EP15768555.3

申请日：2015-03-23

申请人： JFE Steel Corporation

发明人： NOUCHI Taihei ,  TAKAHASHI Koichi ,  TERUI Koki ,  SATO Michitaka ,  YOSHIOKA Aya

IPC分类号： C21B5/00

CPC分类号： C21B5/06 ,  C21B5/003 ,  C21B2005/005 ,  Y02P10/283

摘要： [TASK]
It is to propose a method of operating an oxygen blast furnace which is capable of lowering the temperature in the combustion zone at the tuyere tip while decreasing an emission amount of CO 2 as compared to the conventional ones.
[SOLUTION]
In a method of operating an oxygen blast furnace by blowing at least pure oxygen from tuyeres to generate blast furnace gas containing a small amount of nitrogen from a furnace top, a temperature of a combustion zone at a tuyere tip is lowered by blowing a tuyere-blowing gas, in which the sum of volume fractions of hydrocarbon and hydrogen is not less than 50%, together with the pure oxygen from the tuyeres.

公开(公告)号：EP2407742B1

公开(公告)日：2016-11-09

申请号：EP10169326.5

申请日：2010-07-13

申请人： Kutsch, Thorsten

发明人： Kutsch, Thorsten

IPC分类号： F27B1/16 ,  C21B5/00 ,  F23D17/00

CPC分类号： F27B1/16 ,  C21B5/003 ,  C21B7/163 ,  C21B13/023 ,  F23D1/00 ,  F23D17/005 ,  F23K3/02

公开(公告)号：EP3029160A1

公开(公告)日：2016-06-08

申请号：EP14832268.8

申请日：2014-06-18

申请人： JFE Steel Corporation

发明人： TSUDA, Kazuro ,  HIRATA, Takehide ,  YAMAHIRA, Naoshi ,  ABE, Hidekazu

IPC分类号： C21B7/24 ,  C21B5/00 ,  F27D21/00 ,  G05B23/02

CPC分类号： G06T7/0004 ,  C21B5/006 ,  C21B7/24 ,  F27B1/16 ,  F27B1/28 ,  F27D1/16 ,  F27D1/18 ,  F27D21/00 ,  F27D21/02 ,  F27D2021/026 ,  G06K9/4661 ,  G06K9/6269 ,  G06T7/60 ,  G06T2207/10016 ,  G06T2207/20076

摘要： An abnormality detection device 10 includes tuyere cameras 31 installed in the vicinities of a plurality of tuyeres 11 of the blast furnace 1 and an image processing device 7. A representative brightness vector collection unit 773 of the image processing device 7 determines representative brightnesses based on brightness values of respective pixels for the tuyeres images previously shot by the tuyere cameras 31 at the same time so as to collect representative brightness vectors in a time-series manner. An index extraction unit 775 performs principal component analysis on the representative brightness vectors collected in the time-series manner so as to extract a principal component vector. The representative brightness vector collection unit 773 collects the representative brightness vector from tuyere images shot by the tuyere cameras 31 at the same time during an operation. The abnormality detection processor 777 calculates a length of a normal line drawn from the collected representative brightness vector in the direction of the principal component vector as an evaluation value and compares the evaluation value with a predetermined threshold so as to detect the abnormality of the blast furnace 1.

公开(公告)号：EP2987871A4

公开(公告)日：2016-04-27

申请号：EP14785099

申请日：2014-03-28

申请人： JFE STEEL CORP

发明人： MURAO AKINORI ,  FUJIWARA DAIKI ,  WATAKABE SHIRO ,  SATO MICHITAKA ,  WATANABE TAKASHI ,  SHIMOMURA AKIO

IPC分类号： C21B5/00

CPC分类号： C21B5/003 ,  C21B5/007 ,  F27D3/16 ,  F27D3/18 ,  F27D2003/168 ,  F27D2003/185

摘要： [Task] It is to propose a blast furnace operation method capable of increasing the productivity and decreasing CO 2 emission even in the operation at a pulverized coal ratio of not less than 150 kg/t-p. [Solution] A method of operating a blast furnace by blowing a pulverized coal at an amount of not less than 150 kg/t-p from tuyeres through a lance into a blast furnace, characterized in that when the operation is performed under a condition that lump coke charged from a furnace top has a strength defined in JIS K2151 (DI 150 15 ) of not more than 87%, the pulverized coal blown through the tuyere contains not more than 60 mass% as a weight ratio of coal having a particle size of not more than 74 µm and has an average volatile matter of not more than 25 mass%, and a blast temperature blown through the tuyere is not higher than 1100°C, oxygen is simultaneously blown into the furnace with the blowing of the pulverized coals through the lance and a gas having an oxygen concentration of 60 vol%-97 vol% is used as a carrier gas for the blowing of the pulverized coal.

公开(公告)号：EP2796567A4

公开(公告)日：2016-03-02

申请号：EP12859760

申请日：2012-10-11

申请人： POSCO

发明人： CHOI EUNG-SOO ,  HEOR GEUM-SIK ,  BAE JIN-CHAN

IPC分类号： C21B13/00 ,  C21B5/00 ,  C21B5/02 ,  C21B7/16 ,  C21B13/14

CPC分类号： C21B5/003 ,  C21B5/001 ,  C21B5/026 ,  C21B7/163 ,  C21B13/002 ,  C21B13/0066 ,  C21B13/143 ,  C21B2100/60 ,  Y02P10/136

公开(公告)号：EP2840152A4

公开(公告)日：2015-11-18

申请号：EP12878418

申请日：2012-06-06

申请人： JFE STEEL CORP

发明人： SATO TAKESHI ,  SUMI HIROYUKI ,  FUJIMOTO HIDEKAZU ,  ANYASHIKI TAKASHI ,  SATO HIDEAKI

IPC分类号： C21B5/00 ,  C22B1/245

CPC分类号： C21B5/008 ,  C21B5/006

摘要： In a method for operating a blast furnace by forming a coke layer 1 and an ore layer in a blast furnace, an ore layer is formed as ore layer 2 and 3 of a plurality of batches including two or more batches, the carbon iron composite is mixed into the ore layer of at least one batch among the plurality of batches but not into at least another batch. In operation during which an ore layer thickness ratio, i.e., ore layer thickness/(ore layer thickness + coke layer thickness), is varied in a furnace radius direction, the furnace radius direction position preferably varies among ore layers of the plurality of batches and the carbon iron composite is preferably mixed into an ore layer 2 of a batch at a furnace radius direction position where the ore layer thickness ratio is relatively large.

公开(公告)号：EP2788516A4

公开(公告)日：2015-09-23

申请号：EP12856259

申请日：2012-12-06

申请人： TECH RESOURCES PTY LTD

发明人： DRY RODNEY JAMES ,  MEIJER HENDRIKUS KOENRAAD ALBERTUS

IPC分类号： C21B11/00 ,  C21B5/00 ,  C21B7/00 ,  C21B13/00 ,  C21C5/00 ,  C22B5/00 ,  F27B1/00 ,  F27B3/18 ,  F27B3/22 ,  F27B5/00 ,  F27B7/20 ,  F27B9/30 ,  F27B14/08 ,  F27D3/00 ,  F27D9/00 ,  F27D13/00

CPC分类号： C21B11/08 ,  C21B13/0013 ,  C21B2100/282 ,  C21B2100/42 ,  C21B2100/66 ,  C21C5/567 ,  C21C2200/00 ,  C22B5/10 ,  C22B5/12 ,  F27D3/16 ,  F27D3/18 ,  F27D2003/168 ,  Y02P10/122 ,  Y02P10/136 ,  Y02P10/265 ,  Y02P10/283

摘要： A method of starting a molten-bath based melting process includes commencing supplying cold oxygen-containing gas and cold carbonaceous material into a main chamber of a smelting vessel within at most 3 hours after completing a hot metal charge into the vessel and igniting the carbonaceous material and heating the main chamber and molten metal in the main chamber.

公开(公告)号：EP2857529A1

公开(公告)日：2015-04-08

申请号：EP13797875.5

申请日：2013-03-19

申请人： Nippon Steel & Sumitomo Metal Corporation

发明人： NATSUI, Takuya ,  NAKANO, Kaoru ,  INADA, Takanobu

IPC分类号： C21B5/00 ,  C21B7/20

CPC分类号： C21B7/20 ,  C21B5/008

摘要： With respect to raw material charging from a furnace intermediate portion to a furnace wall, a coke batch (first charging batch 5a) is piled up such that a coke surface has a piled-up peak in a range of dimensionless furnace-opening radius of 0.6 to 0.8, and forms a raw material piled-up slope which is inclined toward a furnace center and toward the furnace wall; a mixture batch of ore and coke (third charging batch 5c) is charged such that its fall point of charging is on the furnace wall side from the piled-up peak of coke; and an ore batch (fourth charging batch 5d) is charged such that its fall point of charging is in a range of dimensionless furnace-opening radius of 0.5 to 0.9. This makes it possible to independently control and decrease O/C in the vicinity of the furnace wall without requiring a new ancillary facility, and to prevent formation of furnace wall deposits without significantly increasing reducing material ratio of the blast furnace. It is desirable that the charging amount of the mixture batch of ore and coke is less than that of the ore batch.

摘要翻译： 对于从炉中间部向炉壁的原料充填，堆积了焦炭批次（第一加料批料5a），使得焦炭表面在无量纲的炉开口半径为0.6的范围内具有堆积峰 形成为朝向炉中心朝向炉壁倾斜的原料堆积斜坡， 加入矿石和焦炭的混合物批料（第三充填批料5c），使得其充电的下降点位于焦炭堆积顶峰的炉壁侧; 并且将矿石批次（第四充电批料5d）充电，使得其充电的下降点在无量纲的开炉半径为0.5至0.9的范围内。 这使得可以独立地控制和减少炉壁附近的O / C，而不需要新的辅助设备，并且防止炉壁沉积物的形成而不显着增加高炉的还原材料比。 矿石和焦炭的混合物批料的装料量优选小于矿石批料的装料量。