JPS5739115A - Controlling method for bottom blown gas - Google Patents

Controlling method for bottom blown gas

Info

Publication number
JPS5739115A
JPS5739115A JP11347080A JP11347080A JPS5739115A JP S5739115 A JPS5739115 A JP S5739115A JP 11347080 A JP11347080 A JP 11347080A JP 11347080 A JP11347080 A JP 11347080A JP S5739115 A JPS5739115 A JP S5739115A
Authority
JP
Japan
Prior art keywords
gas
flow amount
tuye
res
ratio
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.)
Pending
Application number
JP11347080A
Other languages
Japanese (ja)
Inventor
Akiya Ozeki
Teruyuki Hasegawa
Youichi Nimura
Kenzo Yamada
Tsutomu Usui
Kounoshin Tamura
Toshio Edane
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP11347080A priority Critical patent/JPS5739115A/en
Publication of JPS5739115A publication Critical patent/JPS5739115A/en
Pending 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
    • C21C5/34—Blowing through the bath

Landscapes

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

Abstract

PURPOSE:To retain stable agitation and refining, by measuring the back pressure and gas flow amount of tuye res for bottom blowing to detect clogging in them, and by altering the gas flow amount and the gas ratio of tuye res having the occurrence of clogging and of other tuye res to keep the total flow amount of gas and the total gas ratio constant. CONSTITUTION:Each back pressure of tuye res for bottom blowing 1a-1d and each flow amount of gas blown from pipes 10a-10d are measured with pressure guages 2a-2d and flow meters 3a-3d, 3'a-3'd. The measurements are input to an operation unit 4 and tuye res having the occurrence of clogging are detected. When e.g. a tuye re 1a gets clogged, the operation unit 4 instructs the flow amount controlling valves 5a, 5'a to increase the flow amount of gas or the O2 ratio in gas. On the other hand, the operation unit 4 gives instructions to flow amount controlling valves 5b-5d, 5'b-5'd to make compensations for the increased flow amount of gas or O2 ratio in gas in the tuye re 1a. Consequently, the flow amount of gas or the O2 ratio in gas in other tuye res 1b-1d is decreased and the total flow amount of gas and the total O2 ratio in gas are kept constant.
JP11347080A 1980-08-20 1980-08-20 Controlling method for bottom blown gas Pending JPS5739115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11347080A JPS5739115A (en) 1980-08-20 1980-08-20 Controlling method for bottom blown gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11347080A JPS5739115A (en) 1980-08-20 1980-08-20 Controlling method for bottom blown gas

Publications (1)

Publication Number Publication Date
JPS5739115A true JPS5739115A (en) 1982-03-04

Family

ID=14613059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11347080A Pending JPS5739115A (en) 1980-08-20 1980-08-20 Controlling method for bottom blown gas

Country Status (1)

Country Link
JP (1) JPS5739115A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586918A (en) * 1981-07-02 1983-01-14 Kobe Steel Ltd Controller for gas blowing for bottom blowing to top and bottom blowing converter
JPS59159912A (en) * 1983-03-02 1984-09-10 Nippon Steel Corp Operating method of top and bottom blown converter
FR2545392A1 (en) * 1983-05-06 1984-11-09 Voest Alpine Ag METALLURGICAL CONTAINER FOR FINE LIQUID METALS
JPS6219912U (en) * 1985-07-22 1987-02-06
WO2001021842A1 (en) * 1999-09-22 2001-03-29 Voest-Alpine Industrieanlagenbau Gmbh Method for injecting gases or solids into the bottom of a bath

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445610A (en) * 1977-08-26 1979-04-11 British Steel Corp Control process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445610A (en) * 1977-08-26 1979-04-11 British Steel Corp Control process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586918A (en) * 1981-07-02 1983-01-14 Kobe Steel Ltd Controller for gas blowing for bottom blowing to top and bottom blowing converter
JPS6215606B2 (en) * 1981-07-02 1987-04-08 Kobe Steel Ltd
JPS59159912A (en) * 1983-03-02 1984-09-10 Nippon Steel Corp Operating method of top and bottom blown converter
FR2545392A1 (en) * 1983-05-06 1984-11-09 Voest Alpine Ag METALLURGICAL CONTAINER FOR FINE LIQUID METALS
JPS59215413A (en) * 1983-05-06 1984-12-05 ホエスト−アルピン・アクチエンゲゼルシヤフト Metallurgical vessel for molten metal
JPS6219912U (en) * 1985-07-22 1987-02-06
WO2001021842A1 (en) * 1999-09-22 2001-03-29 Voest-Alpine Industrieanlagenbau Gmbh Method for injecting gases or solids into the bottom of a bath

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