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GB1447404A - Blast furnace and method of operating the same - Google Patents

Blast furnace and method of operating the same

Info

Publication number
GB1447404A
GB1447404A GB4457473A GB4457473A GB1447404A GB 1447404 A GB1447404 A GB 1447404A GB 4457473 A GB4457473 A GB 4457473A GB 4457473 A GB4457473 A GB 4457473A GB 1447404 A GB1447404 A GB 1447404A
Authority
GB
United Kingdom
Prior art keywords
tuyeres
blast furnace
furnace
gas
blast
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.)
Expired
Application number
GB4457473A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4457473A priority Critical patent/GB1447404A/en
Publication of GB1447404A publication Critical patent/GB1447404A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

1447404 Blast furnace operation HB CLAFLIN 22nd Sept 1973 44574/73 Heading C7D A blast furnace is operated with an oxygen enriched blast introduced through the normal tuyeres while through two vertically spaced sets of auxiliary tuyeres located above the latter there is introduced an auxiliary reducing gas obtained by feeding a mixture of air, oxygen and uncleaned blast furnace top gas into a separate conversion furnace where it is combusted with carbonaceous fuel, the product being mixed with blast furnace top gas for temperature control before introduction to the blast furnace. The flow of gas to the uppermost set of tuyeres is so controlled that the temperature of the adjacent solid charge is maintained below 1000‹C. In a modification an uncleaned uncooled exhaust gas from a basic oxygen converter is also mixed with the gas stream before introduction to the conversion furnace, while only roll scale may be charged to the top of the latter. As illustrated, mixed gases are introduced into conversion furnace 31 through tuyeres 38 and react with a bed of coal, the resultant reducing gas being withdrawn through manifold 33 and passed to the auxiliary tuyeres 46, 47 of blast furnace 45. Top gas leaving the conversion furnace is recycled to the tuyeres of the latter while metal and slag resulting from the dust content of the gases fed to that furnace are tapped periodically.
GB4457473A 1973-09-22 1973-09-22 Blast furnace and method of operating the same Expired GB1447404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4457473A GB1447404A (en) 1973-09-22 1973-09-22 Blast furnace and method of operating the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4457473A GB1447404A (en) 1973-09-22 1973-09-22 Blast furnace and method of operating the same

Publications (1)

Publication Number Publication Date
GB1447404A true GB1447404A (en) 1976-08-25

Family

ID=10433924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4457473A Expired GB1447404A (en) 1973-09-22 1973-09-22 Blast furnace and method of operating the same

Country Status (1)

Country Link
GB (1) GB1447404A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030430A (en) * 1998-07-24 2000-02-29 Material Conversions, Inc. Blast furnace with narrowed top section and method of using
LU91493B1 (en) * 2008-10-31 2010-05-03 Wurth Paul Sa Method for operating a blast furnace and blast furnace installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030430A (en) * 1998-07-24 2000-02-29 Material Conversions, Inc. Blast furnace with narrowed top section and method of using
LU91493B1 (en) * 2008-10-31 2010-05-03 Wurth Paul Sa Method for operating a blast furnace and blast furnace installation
WO2010049536A1 (en) * 2008-10-31 2010-05-06 Paul Wurth S.A. Method for operating a blast furnace and blast furnace installation
US8545597B2 (en) 2008-10-31 2013-10-01 Paul Wurth S.A. Method for operating a blast furnace and blast furnace installation

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee