JPS5582716A - Regenerating method for oxygen-blowing tuyere of converter - Google Patents

Regenerating method for oxygen-blowing tuyere of converter

Info

Publication number
JPS5582716A
JPS5582716A JP15499278A JP15499278A JPS5582716A JP S5582716 A JPS5582716 A JP S5582716A JP 15499278 A JP15499278 A JP 15499278A JP 15499278 A JP15499278 A JP 15499278A JP S5582716 A JPS5582716 A JP S5582716A
Authority
JP
Japan
Prior art keywords
damaged
pipes
tuyere
flange parts
cut
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
JP15499278A
Other languages
Japanese (ja)
Other versions
JPS6029598B2 (en
Inventor
Yuji Sato
Hiroshi Onishi
Toshikazu Shinozaki
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 JP15499278A priority Critical patent/JPS6029598B2/en
Publication of JPS5582716A publication Critical patent/JPS5582716A/en
Publication of JPS6029598B2 publication Critical patent/JPS6029598B2/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 regenerate the damaged bottom tuyer of a bottom-blown converter by repairement, by cutting off the damaged straight parts of the inner and the outer pipes of a damaged bottom tuyere of a bottom-blown converter from the flange parts, then by welding new straight pipes to the flange parts. CONSTITUTION:When a bottom blown converter tuyere composed of an inner and an outer pipes is damaged by melting, a ceramic tube 1 at the central part is first removed. The straight parts 2a, 2b of the damaged inner pipe and the outer pipe of the tuyere are cut off at a position (A). Then the damaged part on the inner pipe 2a is cut at the position (B) to remove the damaged part. The top ends of the flange parts 2b, 3b of the inner and the outer pipes are cut to form groove faces. New straight pipes 5a, 6a are butted to the cut grooves of the flange parts 2b, 3b, and a material for preventing melt down is arranged at the back side. Then the flange parts and the new straight pipes are located by means of mandrels 8, 9, and a movable plate 11 so as to maintain the straightness of the straight pipes 5a, 6a. Hereafter the grooves are welded in order to repair the tuyere.
JP15499278A 1978-12-18 1978-12-18 Method for regenerating tuyere for oxygen injection in converter Expired JPS6029598B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15499278A JPS6029598B2 (en) 1978-12-18 1978-12-18 Method for regenerating tuyere for oxygen injection in converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15499278A JPS6029598B2 (en) 1978-12-18 1978-12-18 Method for regenerating tuyere for oxygen injection in converter

Publications (2)

Publication Number Publication Date
JPS5582716A true JPS5582716A (en) 1980-06-21
JPS6029598B2 JPS6029598B2 (en) 1985-07-11

Family

ID=15596338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15499278A Expired JPS6029598B2 (en) 1978-12-18 1978-12-18 Method for regenerating tuyere for oxygen injection in converter

Country Status (1)

Country Link
JP (1) JPS6029598B2 (en)

Also Published As

Publication number Publication date
JPS6029598B2 (en) 1985-07-11

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