JPS5462905A - Recovering method for exhaust gas from converter - Google Patents

Recovering method for exhaust gas from converter

Info

Publication number
JPS5462905A
JPS5462905A JP12959377A JP12959377A JPS5462905A JP S5462905 A JPS5462905 A JP S5462905A JP 12959377 A JP12959377 A JP 12959377A JP 12959377 A JP12959377 A JP 12959377A JP S5462905 A JPS5462905 A JP S5462905A
Authority
JP
Japan
Prior art keywords
exhaust gas
concentration
gas
refining
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
JP12959377A
Other languages
Japanese (ja)
Other versions
JPS6110005B2 (en
Inventor
Masahisa Tate
Akira Masui
Hideo Uchibori
Susumu Sekine
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 JP12959377A priority Critical patent/JPS5462905A/en
Publication of JPS5462905A publication Critical patent/JPS5462905A/en
Publication of JPS6110005B2 publication Critical patent/JPS6110005B2/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
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

PURPOSE:To recover the whole quantity of the above-mentioned exhaust gas as the fuel, by blowing-in the combustible gas consisting of CO as the main component from the mechanism for blowing-in the combustible gas according to the concentration of CO measured with the detecting mechanism for the composition of exhaust gas and, in this way, by regulating the concentration of CO in the exhaust gas within the range of combustible gas. CONSTITUTION:The CO concentration of the exhaust gas generated from the nearly same period as the start of the refining of steel may be below the allowable concentration as the fuel at the upper stream side above the part for blowing-in the gas but it is necessary to reduce at least the O2 concentration below the explosion limit. At the initial stage and final stage of the refining, the exhaust gas from the detection hole 4 is sent to the analyzing and computing mechanism 5, the damper 7 is driven and controlled according to the result, the combustible gas is blown into the duct 2 through the piping 6 and, in this way, the CO concentration is maintained within an appropriate range. At the intermediate stage of the refining, the blowing of the combustible gas into the duct 2 is stopped generally. Accordingly, because the CO concentration in the whole exhaust gas from the start of the refining to the final stage is held within the range as the combustible gas, the whole quantity of exhaust gas can be recovered as the fuel.
JP12959377A 1977-10-31 1977-10-31 Recovering method for exhaust gas from converter Granted JPS5462905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12959377A JPS5462905A (en) 1977-10-31 1977-10-31 Recovering method for exhaust gas from converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12959377A JPS5462905A (en) 1977-10-31 1977-10-31 Recovering method for exhaust gas from converter

Publications (2)

Publication Number Publication Date
JPS5462905A true JPS5462905A (en) 1979-05-21
JPS6110005B2 JPS6110005B2 (en) 1986-03-27

Family

ID=15013272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12959377A Granted JPS5462905A (en) 1977-10-31 1977-10-31 Recovering method for exhaust gas from converter

Country Status (1)

Country Link
JP (1) JPS5462905A (en)

Also Published As

Publication number Publication date
JPS6110005B2 (en) 1986-03-27

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