EP0447908A1 - Verfahren zum Einblasen von Kohlenstaub in einen Hochofen sowie Kohleeinblaslanze zur Durchführung des Verfahrens - Google Patents

Verfahren zum Einblasen von Kohlenstaub in einen Hochofen sowie Kohleeinblaslanze zur Durchführung des Verfahrens Download PDF

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Publication number
EP0447908A1
EP0447908A1 EP91103653A EP91103653A EP0447908A1 EP 0447908 A1 EP0447908 A1 EP 0447908A1 EP 91103653 A EP91103653 A EP 91103653A EP 91103653 A EP91103653 A EP 91103653A EP 0447908 A1 EP0447908 A1 EP 0447908A1
Authority
EP
European Patent Office
Prior art keywords
oxygen
coal
lance
blast furnace
coal dust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91103653A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kurt Dipl.-Ing. Bosselmann
Manfred Dipl.-Ing. Greuel
Ferdinand Kaune
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoesch Stahl AG
Original Assignee
Hoesch Stahl AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoesch Stahl AG filed Critical Hoesch Stahl AG
Publication of EP0447908A1 publication Critical patent/EP0447908A1/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a coal blowing lance for performing the method.
  • the blast furnace wind has been enriched with oxygen to achieve good efficiency in fine coal combustion in the blast furnace.
  • This oxygen is added to the blast furnace wind in front of the wind heaters and gets into the furnace via cowper, hot wind pipe, nozzle assembly and blow mold.
  • This method which is common worldwide, only a certain amount of fine coal per ton of RE can be blown in with known furnace and Möller ratios, since only a part of the added oxygen is effective for coal gasification or combustion due to the usual geometries of blow mold and coal blowing lance.
  • coal dust Due to the concentrated coincidence of the components coal dust and oxygen, the coal dust is ignited for a short time, coupled with a subsequent rapid gasification. This significantly increases the efficiency for the combustion of coal dust.
  • a coal blowing lance 1 is shown with an inner tube 2 for the coal dust and an inner tube 2 surrounding this inner tube 2 with an annular gap 3, wherein the inner tube 2 springs back slightly compared to the outer tube 4.
  • the coal dust is fed via the connecting line 5 to the pipe 2 and the oxygen through the connecting valve 6 to the annular gap 3.
  • Coal dust and oxygen are brought together by means of the specially designed coal injection lance 1 in the blow mold, not shown, taking into account the different speeds of coal dust and oxygen. There is an initial ignition in the mouth area of the coal injection lance 1 within the blow molding space.
  • the design of the media speeds does not burn the coal injection lance, since coal dust and oxygen are completely separated from one another until they meet.
  • the oxygen also represents an excellent cooling medium and thus also increases the service life of the injection lance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
EP91103653A 1990-03-20 1991-03-09 Verfahren zum Einblasen von Kohlenstaub in einen Hochofen sowie Kohleeinblaslanze zur Durchführung des Verfahrens Withdrawn EP0447908A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904008963 DE4008963C1 (enrdf_load_stackoverflow) 1990-03-20 1990-03-20
DE4008963 1990-03-20

Publications (1)

Publication Number Publication Date
EP0447908A1 true EP0447908A1 (de) 1991-09-25

Family

ID=6402660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103653A Withdrawn EP0447908A1 (de) 1990-03-20 1991-03-09 Verfahren zum Einblasen von Kohlenstaub in einen Hochofen sowie Kohleeinblaslanze zur Durchführung des Verfahrens

Country Status (3)

Country Link
EP (1) EP0447908A1 (enrdf_load_stackoverflow)
DE (1) DE4008963C1 (enrdf_load_stackoverflow)
WO (1) WO1991014791A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU91264B1 (en) * 2006-07-12 2008-01-14 Wurth Paul Sa Pulverized coal injection lance
WO2010108880A2 (en) 2009-03-24 2010-09-30 Paul Wurth S.A. Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace
WO2011147781A1 (en) 2010-05-26 2011-12-01 Paul Wurth S.A. Tuyere stock arrangement of a blast furnace

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136274A1 (de) * 1991-11-04 1993-05-06 Kortec Ag, Zug, Ch Verfahren und vorrichtung zum schutz einer in einer heisswindleitung eines hochofens angeordneten einblasvorrichtung
DE69322002T2 (de) * 1992-07-01 1999-04-01 Paul Wurth S.A., Luxemburg/Luxembourg Vorrichtung zum Einblasen von Kohlenstaub in einen Hochofen
DE102014216336A1 (de) 2014-08-18 2016-02-18 Küttner Holding GmbH & Co. KG Verfahren zum Einblasen von Ersatzreduktionsmitteln in einen Hochofen
DE102018113774A1 (de) * 2018-06-08 2019-12-12 Aktien-Gesellschaft der Dillinger Hüttenwerke Vorrichtung und Verfahren zum Einbringen eines Ersatzreduktionsmittels in einen Hochofen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU38966A1 (enrdf_load_stackoverflow) *
FR1259738A (fr) * 1960-06-11 1961-04-28 British Iron Steel Research Procédé et appareil pour la fabrication de fonte dans un haut-fourneau
WO1986005520A1 (en) * 1985-03-14 1986-09-25 British Steel Corporation Improvements in or relating to ironmaking by means of a smelting shaft furnace
JPS62142707A (ja) * 1985-12-17 1987-06-26 Kawasaki Steel Corp 高炉の粉粒体吹込み方法
JPS62263906A (ja) * 1986-05-12 1987-11-16 Sumitomo Metal Ind Ltd 高炉羽口からの微粉炭吹込み方法
EP0278221A1 (en) * 1987-01-09 1988-08-17 Nippon Kokan Kabushiki Kaisha Tuyere of blast furnace
JPH0192304A (ja) * 1987-05-30 1989-04-11 Sumitomo Metal Ind Ltd 高炉の微粉炭吹込み用ノズル
EP0319505A1 (fr) * 1987-12-03 1989-06-07 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Procédé de réduction des minerais dans un four à cuve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU39431A1 (enrdf_load_stackoverflow) * 1959-12-24 1961-01-18
US3758090A (en) * 1971-03-26 1973-09-11 Nippon Kokan Kk Combustion apparatus for blast furnaces
LU82622A1 (fr) * 1980-07-14 1982-02-17 Wurth Anciens Ets Paul Procede et dispositif d'injection de combustibles solides dans une conduite de vent chaud d'un four a cuve
JPS62142706A (ja) * 1985-12-17 1987-06-26 Kawasaki Steel Corp 高炉内への粉粒体吹込み方法
JPS62192509A (ja) * 1986-02-17 1987-08-24 Kobe Steel Ltd 高炉の微粉炭吹込み方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU38966A1 (enrdf_load_stackoverflow) *
FR1259738A (fr) * 1960-06-11 1961-04-28 British Iron Steel Research Procédé et appareil pour la fabrication de fonte dans un haut-fourneau
WO1986005520A1 (en) * 1985-03-14 1986-09-25 British Steel Corporation Improvements in or relating to ironmaking by means of a smelting shaft furnace
JPS62142707A (ja) * 1985-12-17 1987-06-26 Kawasaki Steel Corp 高炉の粉粒体吹込み方法
JPS62263906A (ja) * 1986-05-12 1987-11-16 Sumitomo Metal Ind Ltd 高炉羽口からの微粉炭吹込み方法
EP0278221A1 (en) * 1987-01-09 1988-08-17 Nippon Kokan Kabushiki Kaisha Tuyere of blast furnace
JPH0192304A (ja) * 1987-05-30 1989-04-11 Sumitomo Metal Ind Ltd 高炉の微粉炭吹込み用ノズル
EP0319505A1 (fr) * 1987-12-03 1989-06-07 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Procédé de réduction des minerais dans un four à cuve

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 369 (C-461)[2816], 2. Dezember 1987; & JP-A-62 142 707 (KAWASAKI STEEL CORP.) 26-06-1987 *
PATENT ABSTRACTS OF JAPAN, Band 12, Nr. 148 (C-493)[2995], 7. Mai 1988; & JP-A-62 263 906 (SUMITOMO METAL IND.) 16-11-1987 *
PATENT ABSTRACTS OF JAPAN, Band 13, Nr. 302 (C-616)[3650], 12. Juli 1989; & JP-A-01 092 304 (SUMITOMO METAL IND.) 11-04-1989 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008006764A1 (en) * 2006-07-12 2008-01-17 Paul Wurth S.A. Pulverized coal injection lance
DE212007000007U1 (de) 2006-07-12 2008-09-04 Paul Wurth S.A. Kohlenstaub-Einblaslanze
AU2007274343B2 (en) * 2006-07-12 2010-08-05 Paul Wurth S.A. Pulverized coal injection lance
EA014345B1 (ru) * 2006-07-12 2010-10-29 Поль Вурт С.А. Форсунка для вдувания угольной пыли
LU91264B1 (en) * 2006-07-12 2008-01-14 Wurth Paul Sa Pulverized coal injection lance
US8080200B2 (en) 2006-07-12 2011-12-20 Paul Wurth S.A. Pulverized coal injection lance
CN101490282B (zh) * 2006-07-12 2012-12-12 保尔伍斯股份有限公司 煤粉喷枪
US8945463B2 (en) 2009-03-24 2015-02-03 Paul Wurth S.A. Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace
WO2010108880A2 (en) 2009-03-24 2010-09-30 Paul Wurth S.A. Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace
WO2011147781A1 (en) 2010-05-26 2011-12-01 Paul Wurth S.A. Tuyere stock arrangement of a blast furnace
JP2013531732A (ja) * 2010-05-26 2013-08-08 ポール ヴルス エス．エイ． 高炉のための羽口装置
CN102918346A (zh) * 2010-05-26 2013-02-06 保尔伍斯股份有限公司 鼓风炉的风口弯头装置
US8980165B2 (en) 2010-05-26 2015-03-17 Paul Wurth S.A. Tuyere stock arrangement of a blast furnace
CN102918346B (zh) * 2010-05-26 2015-04-01 保尔伍斯股份有限公司 鼓风炉的风口弯头装置

Also Published As

Publication number Publication date
WO1991014791A1 (de) 1991-10-03
DE4008963C1 (enrdf_load_stackoverflow) 1991-11-14

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