ES462696A1 - 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
ES462696A1
ES462696A1 ES462696A ES462696A ES462696A1 ES 462696 A1 ES462696 A1 ES 462696A1 ES 462696 A ES462696 A ES 462696A ES 462696 A ES462696 A ES 462696A ES 462696 A1 ES462696 A1 ES 462696A1
Authority
ES
Spain
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.)
Expired
Application number
ES462696A
Other languages
Spanish (es)
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
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of ES462696A1 publication Critical patent/ES462696A1/en
Expired 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (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.
ES462696A 1975-10-15 1977-09-27 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption Expired ES462696A1 (en)

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 (1)

Publication Number Publication Date
ES462696A1 true ES462696A1 (en) 1978-07-01

Family

ID=9161226

Family Applications (2)

Application Number Title Priority Date Filing Date
ES452400A Expired 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)
ES462696A Expired ES462696A1 (en) 1975-10-15 1977-09-27 Cupola melting iron or nonferrous metals - using air blast enriched with oxygen to reduce coke consumption

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES452400A Expired 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)

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)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556366B3 (en) * 1983-12-07 1985-11-22 Sacilor PROCESS FOR THE PRODUCTION OF REFINING CAST IRON IN A TANK OVEN AND IN PARTICULAR IN A BLAST FURNACE WITH A METAL FURNACE OF 100% SCRAP
JPH02200713A (en) * 1989-01-31 1990-08-09 Sumitomo Metal Ind Ltd Device and method for producing molten iron

Also Published As

Publication number Publication date
FR2328049B1 (en) 1979-04-27
IT1067301B (en) 1985-03-16
ES452400A1 (en) 1977-12-16
FR2328049A1 (en) 1977-05-13
BE847230A (en) 1977-04-13
LU76008A1 (en) 1977-05-11

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980401