JPS558457A - Oxygen bottom blasting converter - Google Patents

Oxygen bottom blasting converter

Info

Publication number
JPS558457A
JPS558457A JP8084378A JP8084378A JPS558457A JP S558457 A JPS558457 A JP S558457A JP 8084378 A JP8084378 A JP 8084378A JP 8084378 A JP8084378 A JP 8084378A JP S558457 A JPS558457 A JP S558457A
Authority
JP
Japan
Prior art keywords
gas
converter
blasted
tuyere
tube
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
JP8084378A
Other languages
Japanese (ja)
Other versions
JPS5833290B2 (en
Inventor
Nagayasu Bessho
Kyoji Nakanishi
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP53080843A priority Critical patent/JPS5833290B2/en
Publication of JPS558457A publication Critical patent/JPS558457A/en
Publication of JPS5833290B2 publication Critical patent/JPS5833290B2/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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/48—Bottoms or tuyéres of converters

Landscapes

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

Abstract

PURPOSE:To make possible the adjustment, etc., of composition to be freely controlled, and to make possible the improvement of the dephosphorization and desulfurization capacity, by installing the auxiliary tuyere separately from the double tube refining tuyere (hydrocarbon gas for cooling is passed through the outer tube, and O2 gas through the inner tube) installed at the bottom of the converter. CONSTITUTION:When the molten iron in the converter is desulfurized, N2 gas is blasted from the outer tubes 1a, 1b, of the double tube tuyere installed at the bottom of the converter, and the desulfurizer (Fe-Si, Fe-Mn, etc., for instance) together with N2 gas is blasted from the separate auxiliary tuyere 2. Next, at the oxidizing refining process after the slagging off, O2 and CaO from the inner tube 1a, and the cooling gas like as C3H8, etc., from the outer tube 1b, are blasted, and N2 gas is blasted from the auxiliary tuyere 2. According to this method, the desulfurization of the molten iron and the oxidizing refining can be executed in the same furnace; hereby, the labor saving and the cost reduction can be contrived.
JP53080843A 1978-07-05 1978-07-05 Oxygen bottom blowing converter Expired JPS5833290B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53080843A JPS5833290B2 (en) 1978-07-05 1978-07-05 Oxygen bottom blowing converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53080843A JPS5833290B2 (en) 1978-07-05 1978-07-05 Oxygen bottom blowing converter

Publications (2)

Publication Number Publication Date
JPS558457A true JPS558457A (en) 1980-01-22
JPS5833290B2 JPS5833290B2 (en) 1983-07-19

Family

ID=13729630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53080843A Expired JPS5833290B2 (en) 1978-07-05 1978-07-05 Oxygen bottom blowing converter

Country Status (1)

Country Link
JP (1) JPS5833290B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441961A (en) * 1977-09-09 1979-04-03 Toshiba Corp Sphering of thermoplastic particles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102977U (en) * 1983-12-20 1985-07-13 三菱鉛筆株式会社 Shape pencil chuck set
JPS63260493A (en) * 1987-04-17 1988-10-27 株式会社　寿 Propelling pencil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966518A (en) * 1972-08-01 1974-06-27
JPS50137805A (en) * 1974-04-11 1975-11-01

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966518A (en) * 1972-08-01 1974-06-27
JPS50137805A (en) * 1974-04-11 1975-11-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441961A (en) * 1977-09-09 1979-04-03 Toshiba Corp Sphering of thermoplastic particles
JPS552167B2 (en) * 1977-09-09 1980-01-18

Also Published As

Publication number Publication date
JPS5833290B2 (en) 1983-07-19

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