FR2328049A1 - Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption - Google Patents

Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption

Info

Publication number
FR2328049A1
FR2328049A1 FR7531549A FR7531549A FR2328049A1 FR 2328049 A1 FR2328049 A1 FR 2328049A1 FR 7531549 A FR7531549 A FR 7531549A FR 7531549 A FR7531549 A FR 7531549A FR 2328049 A1 FR2328049 A1 FR 2328049A1
Authority
FR
France
Prior art keywords
oxygen
air blast
nonferrous metals
reduce coke
melting iron
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.)
Granted
Application number
FR7531549A
Other languages
French (fr)
Other versions
FR2328049B1 (en
Inventor
Pierre Karinthi
Noel Lutgen
Alain Geron
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.)
Air Liquide SA
Original Assignee
Air Liquide SA
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 Air Liquide SA filed Critical Air Liquide SA
Priority to FR7531549A priority Critical patent/FR2328049A1/en
Priority to IT2827076A priority patent/IT1067301B/en
Priority to BE171470A priority patent/BE847230A/en
Priority to ES452400A priority patent/ES452400A1/en
Priority to LU76008A priority patent/LU76008A1/xx
Publication of FR2328049A1 publication Critical patent/FR2328049A1/en
Priority to ES462696A priority patent/ES462696A1/en
Application granted granted Critical
Publication of FR2328049B1 publication Critical patent/FR2328049B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/02—Shaft or like vertical or substantially vertical furnaces with two or more shafts or chambers, e.g. multi-storey
    • F27B1/025—Shaft or like vertical or substantially vertical furnaces with two or more shafts or chambers, e.g. multi-storey with fore-hearth
    • 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
    • C21B2100/66—Heat exchange
    • 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
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • 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
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)

Abstract

Metal is made in a second melting process in a shaft furnace, starting from a metal charge, e.g. molten iron made in a cupola and the gas formed by O2 and coke is used to preheat the metal charge. The novelty is that the metal charge is preheated to 200-1540 degrees C, using both the heat and the latent heat in the gas; the O2 in the air is adjusted so Q.Cg D.Cm, where Q is the gas flow and Cg its specific heat; D is the rate of adding the metal charge and Cm its specific heat. Pure O2 may be used and may contain CH4 so the preheating gas contains N2, CO, H2O and H2. The conservation of coke in melting cast iron, but the process may be applied to melting ferro-alloys, Pb or Zn scrap.
FR7531549A 1975-10-15 1975-10-15 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption Granted FR2328049A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7531549A FR2328049A1 (en) 1975-10-15 1975-10-15 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption
IT2827076A IT1067301B (en) 1975-10-15 1976-10-13 SECOND MELT METAL PROCESSING PROCESS WITH PREHEATING OF METAL CHARGES AND OVEN FOR ITS INSTALLATION
BE171470A BE847230A (en) 1975-10-15 1976-10-13 PROCESS FOR THE PREPARATION OF A SECOND FUSION METAL WITH PREHEATING OF THE METAL LOADS AND OVEN FOR ITS IMPLEMENTATION,
ES452400A ES452400A1 (en) 1975-10-15 1976-10-14 Procedure for the elaboration of a second fusion metal. (Machine-translation by Google Translate, not legally binding)
LU76008A LU76008A1 (en) 1975-10-15 1976-10-14
ES462696A ES462696A1 (en) 1975-10-15 1977-09-27 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7531549A FR2328049A1 (en) 1975-10-15 1975-10-15 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption

Publications (2)

Publication Number Publication Date
FR2328049A1 true FR2328049A1 (en) 1977-05-13
FR2328049B1 FR2328049B1 (en) 1979-04-27

Family

ID=9161226

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7531549A Granted FR2328049A1 (en) 1975-10-15 1975-10-15 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption

Country Status (5)

Country Link
BE (1) BE847230A (en)
ES (2) ES452400A1 (en)
FR (1) FR2328049A1 (en)
IT (1) IT1067301B (en)
LU (1) LU76008A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556366A3 (en) * 1983-12-07 1985-06-14 Sacilor Process for the production of pig iron in a tank furnace and in particular in a blast furnace with a metal furnace charge of 100 % of scrap iron
EP0382900A1 (en) * 1989-01-31 1990-08-22 Sumitomo Metal Industries, Ltd. Method for manufacturing molten pig iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556366A3 (en) * 1983-12-07 1985-06-14 Sacilor Process for the production of pig iron in a tank furnace and in particular in a blast furnace with a metal furnace charge of 100 % of scrap iron
EP0382900A1 (en) * 1989-01-31 1990-08-22 Sumitomo Metal Industries, Ltd. Method for manufacturing molten pig iron

Also Published As

Publication number Publication date
ES452400A1 (en) 1977-12-16
ES462696A1 (en) 1978-07-01
BE847230A (en) 1977-04-13
IT1067301B (en) 1985-03-16
FR2328049B1 (en) 1979-04-27
LU76008A1 (en) 1977-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse