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FR2081814A1 - Open hearth furnace steel making process - Google Patents

Open hearth furnace steel making process

Info

Publication number
FR2081814A1
FR2081814A1 FR7106725A FR7106725A FR2081814A1 FR 2081814 A1 FR2081814 A1 FR 2081814A1 FR 7106725 A FR7106725 A FR 7106725A FR 7106725 A FR7106725 A FR 7106725A FR 2081814 A1 FR2081814 A1 FR 2081814A1
Authority
FR
France
Prior art keywords
jet
charge
open hearth
hearth furnace
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.)
Withdrawn
Application number
FR7106725A
Other languages
French (fr)
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.)
Veitscher Magnesitwerke AG
Original Assignee
Veitscher Magnesitwerke AG
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 Veitscher Magnesitwerke AG filed Critical Veitscher Magnesitwerke AG
Publication of FR2081814A1 publication Critical patent/FR2081814A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
    • 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)
  • Furnace Details (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Steel prodn. from scrap, pig iron and possible ore is carried out in a flame fired furnace such as an open hearth furnace by firstly heating the solid charge up to >1000 degrees C whence molten iron is sprayed into the furnace carried by a jet of fuel. The iron is added as a vertical jet to a jet of the fuel directed at the bath at an oblique angle. Pref. jet of oxygen is employed as carrier for the molten iron. The method results in much faster melting of the charge and permits a large increase in the proportion of scrap in the charge.
FR7106725A 1970-03-10 1971-02-26 Open hearth furnace steel making process Withdrawn FR2081814A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT224570 1970-03-10

Publications (1)

Publication Number Publication Date
FR2081814A1 true FR2081814A1 (en) 1971-12-10

Family

ID=3530721

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7106725A Withdrawn FR2081814A1 (en) 1970-03-10 1971-02-26 Open hearth furnace steel making process

Country Status (2)

Country Link
DE (1) DE2109153A1 (en)
FR (1) FR2081814A1 (en)

Also Published As

Publication number Publication date
DE2109153A1 (en) 1971-09-23

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse