JPS5594421A - Operating method in top blowing oxygen converter - Google Patents

Operating method in top blowing oxygen converter

Info

Publication number
JPS5594421A
JPS5594421A JP177979A JP177979A JPS5594421A JP S5594421 A JPS5594421 A JP S5594421A JP 177979 A JP177979 A JP 177979A JP 177979 A JP177979 A JP 177979A JP S5594421 A JPS5594421 A JP S5594421A
Authority
JP
Japan
Prior art keywords
dust
fire point
fe2o3
molten iron
top blowing
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
JP177979A
Other languages
Japanese (ja)
Other versions
JPS622005B2 (en
Inventor
Hideo Matsui
Yoshihiro Fujii
Toru Yoshida
Yutaka Narita
Yoshihiro Hatsuta
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP177979A priority Critical patent/JPS5594421A/en
Publication of JPS5594421A publication Critical patent/JPS5594421A/en
Publication of JPS622005B2 publication Critical patent/JPS622005B2/ja
Granted 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
    • C21C5/38—Removal of waste gases or dust

Abstract

PURPOSE:To lower temperature of fire point to suppress the production of smoke and dust as well as to ease the recovery of combustible exhaust gas and stabilize operation by mixing CO2 in oxygen for blowing or using the same alone at the time of refining steel in an oxgyen top blowing converter. CONSTITUTION:At the time of refining molten iron to steel in the oxygen top blowing converter, the temperature of fire point becomes extremely high owing to exothermic reaction of O2 and the C in the molten iron, casuing Fe to evaporate. This solidifies to fine Fe or is oxidized to Fe2O3 by air or the molten iron of the fire point is directly oxidized by O2 to produce a large amount of Fe, Fe2O3-base smoke and dust, thereby increasing the burden of a dust collector. At this time, CO2 gas is mixed in O2 or used alone. The reaction of CO2 and C is endothermic reaction, which lowers the temperature of the fire point and this results in considerably reduced production amount of the above-mentioned Fe, Fe2O3-base smoke and dust hence reduced burden of the dust collector to prevent the occurrence of its troubles, thereby stabilizing its operation and easing the recovery of the combustible exhaust gas containing CO.
JP177979A 1979-01-13 1979-01-13 Operating method in top blowing oxygen converter Granted JPS5594421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP177979A JPS5594421A (en) 1979-01-13 1979-01-13 Operating method in top blowing oxygen converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP177979A JPS5594421A (en) 1979-01-13 1979-01-13 Operating method in top blowing oxygen converter

Publications (2)

Publication Number Publication Date
JPS5594421A true JPS5594421A (en) 1980-07-17
JPS622005B2 JPS622005B2 (en) 1987-01-17

Family

ID=11511054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP177979A Granted JPS5594421A (en) 1979-01-13 1979-01-13 Operating method in top blowing oxygen converter

Country Status (1)

Country Link
JP (1) JPS5594421A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60230930A (en) * 1984-04-26 1985-11-16 アレゲニ−　ルドラム　スチ−ル　コ−ポレ−シヨン System and method for manufacturing steel in blast bessel
US9926828B2 (en) 2014-05-09 2018-03-27 Bayerische Motoren Werke Aktiengesellschaft Tailpipe cover for an exhaust system of a motor vehicle and exhaust system having such a tailpipe cover
CN110804684A (en) * 2019-10-16 2020-02-18 北京科技大学 CO converter2-O2Dynamic control method for temperature of mixed blowing smelting fire point area

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147115A (en) * 1978-05-11 1979-11-17 Basf Ag Treatment of molten pig iron* steel* or alloy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147115A (en) * 1978-05-11 1979-11-17 Basf Ag Treatment of molten pig iron* steel* or alloy

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60230930A (en) * 1984-04-26 1985-11-16 アレゲニ−　ルドラム　スチ−ル　コ−ポレ−シヨン System and method for manufacturing steel in blast bessel
US9926828B2 (en) 2014-05-09 2018-03-27 Bayerische Motoren Werke Aktiengesellschaft Tailpipe cover for an exhaust system of a motor vehicle and exhaust system having such a tailpipe cover
CN110804684A (en) * 2019-10-16 2020-02-18 北京科技大学 CO converter2-O2Dynamic control method for temperature of mixed blowing smelting fire point area

Also Published As

Publication number Publication date
JPS622005B2 (en) 1987-01-17

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