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GB1262765A - Process and apparatus for controlling the refining of pig-iron - Google Patents

Process and apparatus for controlling the refining of pig-iron

Info

Publication number
GB1262765A
GB1262765A GB2218469A GB2218469A GB1262765A GB 1262765 A GB1262765 A GB 1262765A GB 2218469 A GB2218469 A GB 2218469A GB 2218469 A GB2218469 A GB 2218469A GB 1262765 A GB1262765 A GB 1262765A
Authority
GB
United Kingdom
Prior art keywords
oxygen
fumes
determinations
hood
slag
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
GB2218469A
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1262765A publication Critical patent/GB1262765A/en
Expired 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

1,262,765. Oxygen steel making. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. May 1, 1969 [May 3, 1968j, No.22184/69. Heading C7D. Oxygen top-blowing of pig-iron is controlled by measuring the quantity of oxygen blown in; determing the quantity of Co burnt in the hood by measuring the temperature of the fumes, using the ratio K = [CO]/([CO] + [CO 2 ]) representing the proportion of CO in the CO + CO 2 in the fumes and a thermal balance; determining the rate of decarburization, the instantaneous C content of the metal, the distribution of oxygen between the metal and slag and the total quantity of oxygen supplied to the slag from the above measured and determined values; and regulating the blast conditions so that these four parameters approach or follow a predetermined course. The hood may operate with or without sprayed water cooling; the variation of the value of the ratio K may be allowed for in the determinations when its value is continually measured (e.g. by measurement of the noise level close to the mouth of the converter); and the determinations and control may be effected by a preferably digital computer. The control may be affected through the rate of oxygen flow, the height of the lance above the melt or the instantaneous quantity of oxygen blown in up to that time.
GB2218469A 1968-05-03 1969-05-01 Process and apparatus for controlling the refining of pig-iron Expired GB1262765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU56014 1968-05-03

Publications (1)

Publication Number Publication Date
GB1262765A true GB1262765A (en) 1972-02-09

Family

ID=19725587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2218469A Expired GB1262765A (en) 1968-05-03 1969-05-01 Process and apparatus for controlling the refining of pig-iron

Country Status (5)

Country Link
BE (1) BE731622A (en)
DE (1) DE1921963A1 (en)
FR (1) FR2007753B1 (en)
GB (1) GB1262765A (en)
LU (1) LU56014A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112662834B (en) * 2020-11-30 2022-08-05 攀钢集团攀枝花钢铁研究院有限公司 Asymmetric bottom blowing CO of converter 2 Method for extracting vanadium

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU47933A1 (en) * 1965-02-08 1966-08-08
LU50939A1 (en) * 1966-04-20 1966-10-20

Also Published As

Publication number Publication date
LU56014A1 (en) 1970-01-13
BE731622A (en) 1969-10-16
DE1921963A1 (en) 1970-01-29
FR2007753A1 (en) 1970-01-09
FR2007753B1 (en) 1973-02-02

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