GB1358997A - Operation of shaft furnaces - Google Patents

Operation of shaft furnaces

Info

Publication number
GB1358997A
GB1358997A GB1596671A GB1596671A GB1358997A GB 1358997 A GB1358997 A GB 1358997A GB 1596671 A GB1596671 A GB 1596671A GB 1596671 A GB1596671 A GB 1596671A GB 1358997 A GB1358997 A GB 1358997A
Authority
GB
United Kingdom
Prior art keywords
fuel
furnace
oxygen
carbon
hearth
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
GB1596671A
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
Priority claimed from DE19702025318 external-priority patent/DE2025318A1/en
Priority claimed from DE19702031560 external-priority patent/DE2031560A1/en
Application filed by Individual filed Critical Individual
Publication of GB1358997A publication Critical patent/GB1358997A/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
    • C21B5/001—Injecting additional fuel or reducing agents
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • 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

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

1358997 Blast furnace operation P RHEINLANDER 20 May 1971 [23 May 1970 26 June 1970] 15966/71 Heading C7D A supplementary carbonaceous fuel is decomposed externally of the furnace (which operates with hot blast) and the products introduced into the furnace hearth, the resultant cooling effect being compensated temporarily by using less ore in the charge, or by increasing the oxygen content or temperature of the bath, until a new equilibrium is attained. The fuel may be reacted with sufficient oxygen to convert all its carbon content to carbon monoxide, or with less oxygen when soot is produced; in such a case the oxidizing gas should be pre-heated so that a crystalline reactive soot is obtained. In another embodiment water vapour is added to the fuel during the reaction. Decomposition products of the fuel may be supplied to the hearth through a pipe extending through a tuyÞre, or separately from the latter. Decomposition may be carried out in a common reaction chamber serving all tuyÞres, or each tuyere may have an individual chamber. The furnace may be operated under such conditions that the CO 2 : CO and H 2 O: H 2 ratios in the top gas are those corresponding to the equilibrium between iron, wastite and carbon, while some or all of the top gas may, after removal of CO 2 and H 2 O be recycled to the reaction vessel.
GB1596671A 1970-05-23 1971-05-20 Operation of shaft furnaces Expired GB1358997A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702025318 DE2025318A1 (en) 1970-05-23 1970-05-23 Blast furnace operation utilising supple-mentary fuels - to cut down coke consumption
DE19702031560 DE2031560A1 (en) 1970-06-26 1970-06-26 Process for operating blast furnaces with coke and additional fuels

Publications (1)

Publication Number Publication Date
GB1358997A true GB1358997A (en) 1974-07-03

Family

ID=25759176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1596671A Expired GB1358997A (en) 1970-05-23 1971-05-20 Operation of shaft furnaces

Country Status (1)

Country Link
GB (1) GB1358997A (en)

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Legal Events

Date Code Title Description
PS Patent sealed