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WO2005119380A3 - Computer implemented control process for the production of molten pig iron - Google Patents

Computer implemented control process for the production of molten pig iron Download PDF

Info

Publication number
WO2005119380A3
WO2005119380A3 PCT/IB2005/051759 IB2005051759W WO2005119380A3 WO 2005119380 A3 WO2005119380 A3 WO 2005119380A3 IB 2005051759 W IB2005051759 W IB 2005051759W WO 2005119380 A3 WO2005119380 A3 WO 2005119380A3
Authority
WO
WIPO (PCT)
Prior art keywords
production
pig iron
molten pig
computer implemented
control process
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.)
Ceased
Application number
PCT/IB2005/051759
Other languages
French (fr)
Other versions
WO2005119380A2 (en
Inventor
Donato Antonello Di
Eros Faraci
Paolo Granati
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.)
Rina Consulting Centro Sviluppo Materiali SpA
Original Assignee
Centro Sviluppo Materiali SpA
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 Centro Sviluppo Materiali SpA filed Critical Centro Sviluppo Materiali SpA
Publication of WO2005119380A2 publication Critical patent/WO2005119380A2/en
Publication of WO2005119380A3 publication Critical patent/WO2005119380A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2300/00—Process aspects
    • C21C2300/06—Modeling of the process, e.g. for control purposes; CII
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/305—Afterburning
    • 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
    • Y02P10/25—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

A computer implemented control process for the production of molten pig iron using computerized means for controlling and varying the flow rate of fuel supply, and/or the flow rate of oxygen injection into a reactor, wherein a reduction reaction of iron ores takes place, in order to vary the value of the oxidation degree (GO) of the resulting gas, equal to the ratio (%H2O + %CO2) / (%H2O + %CO2 + %CO + %H2), and the value of the temperature of the resulting gas in the reactor. Therefore, the control logic of the process allows to control the operating parameters of the process for the production of molten pig iron, allowing the cutting down on fuel consumptions and a good thermal efficiency of the transformation.
PCT/IB2005/051759 2004-05-31 2005-05-30 Computer implemented control process for the production of molten pig iron Ceased WO2005119380A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000267A ITRM20040267A1 (en) 2004-05-31 2004-05-31 COMPUTERIZED CONTROL PROCEDURE FOR THE PRODUCTION OF LIQUID CAST IRON.
ITRM2004A000267 2004-05-31

Publications (2)

Publication Number Publication Date
WO2005119380A2 WO2005119380A2 (en) 2005-12-15
WO2005119380A3 true WO2005119380A3 (en) 2006-03-16

Family

ID=35427808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/051759 Ceased WO2005119380A2 (en) 2004-05-31 2005-05-30 Computer implemented control process for the production of molten pig iron

Country Status (2)

Country Link
IT (1) ITRM20040267A1 (en)
WO (1) WO2005119380A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102591285A (en) * 2012-02-20 2012-07-18 新兴铸管股份有限公司 Universal automatic control system for AOD (Argon Oxygen Decarburization) and top-bottom combined blown furnace
CN109439833B (en) * 2018-12-11 2019-11-08 滨州亚泰雅德动力配件有限公司 High Nickel Cast Iron Engine Stigma carbon content control method and device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1132994A (en) * 1964-12-10 1968-11-06 Centre Nat Rech Metall Method of controlling the operation of a blast furnace
US4227921A (en) * 1978-02-27 1980-10-14 Sumitomo Kinzoku Kogyo Kabushiki Kaisha Method of controlling a blast furnace operation
US4273577A (en) * 1978-08-28 1981-06-16 Kobe Steel, Limited Blast-furnace operation method
US6352574B1 (en) * 1997-03-25 2002-03-05 Centro Sviluppo Materiali S.P.A. Process for direct production of cast iron from fine iron ore and fine coal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1132994A (en) * 1964-12-10 1968-11-06 Centre Nat Rech Metall Method of controlling the operation of a blast furnace
US4227921A (en) * 1978-02-27 1980-10-14 Sumitomo Kinzoku Kogyo Kabushiki Kaisha Method of controlling a blast furnace operation
US4273577A (en) * 1978-08-28 1981-06-16 Kobe Steel, Limited Blast-furnace operation method
US6352574B1 (en) * 1997-03-25 2002-03-05 Centro Sviluppo Materiali S.P.A. Process for direct production of cast iron from fine iron ore and fine coal

Also Published As

Publication number Publication date
WO2005119380A2 (en) 2005-12-15
ITRM20040267A1 (en) 2004-08-31

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