JPS5669317A - Recovery method of steel refining furnace exhaust gas - Google Patents

Recovery method of steel refining furnace exhaust gas

Info

Publication number
JPS5669317A
JPS5669317A JP14494879A JP14494879A JPS5669317A JP S5669317 A JPS5669317 A JP S5669317A JP 14494879 A JP14494879 A JP 14494879A JP 14494879 A JP14494879 A JP 14494879A JP S5669317 A JPS5669317 A JP S5669317A
Authority
JP
Japan
Prior art keywords
exhaust gas
signal
slag level
level
fed
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
JP14494879A
Other languages
Japanese (ja)
Other versions
JPS5925005B2 (en
Inventor
Yosuke Hoshijima
Hideo Araki
Hajime Fujiwara
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 JP14494879A priority Critical patent/JPS5925005B2/en
Publication of JPS5669317A publication Critical patent/JPS5669317A/en
Publication of JPS5925005B2 publication Critical patent/JPS5925005B2/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
    • C21C5/38—Removal of 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 prevent the excess suction of external air and the jet of exhaust gas to improve the recovery efficiency of CO gas by detecting slag level in the furnace during the period of recovery of the exhaust gas and carrying out the interruption control when the detection value exceeds a predetermined value. CONSTITUTION:During the period of recovery of the exhaust gas of the converter 1, etc, the slag level in gas is detected as acoustic level in furnace by a sound meter 14 attached to an upper part of the hood 4. In the case where the slag level exceeds a predetermined value and foaming phenomenon is expected, the acoustic level detection value is fed to a slag level converter 15 to be processed as a signal. This signal is compared with a set value by a slag level difference detecting device 16. This difference signal is fed to a controller 11 and a control signal is fed to a servo device 13 as an interruption signal preceding normally to the control. Thus, a damper 12 is operated and the exhaust gas attaracting amount is determined. According to this method, the change in pressure in the hood is restricted to minimum.
JP14494879A 1979-11-10 1979-11-10 Steel smelting furnace exhaust gas recovery method Expired JPS5925005B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14494879A JPS5925005B2 (en) 1979-11-10 1979-11-10 Steel smelting furnace exhaust gas recovery method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14494879A JPS5925005B2 (en) 1979-11-10 1979-11-10 Steel smelting furnace exhaust gas recovery method

Publications (2)

Publication Number Publication Date
JPS5669317A true JPS5669317A (en) 1981-06-10
JPS5925005B2 JPS5925005B2 (en) 1984-06-13

Family

ID=15373903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14494879A Expired JPS5925005B2 (en) 1979-11-10 1979-11-10 Steel smelting furnace exhaust gas recovery method

Country Status (1)

Country Link
JP (1) JPS5925005B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100861204B1 (en) * 2002-08-22 2008-09-30 주식회사 포스코 Method for collecting Linze Donawitz Gas
CN107523663A (en) * 2017-07-31 2017-12-29 河钢股份有限公司邯郸分公司 A kind of control method of RECOVERY OF CONVERTER GAS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109239193B (en) * 2018-10-26 2021-05-04 山东钢铁股份有限公司 Method for detecting converter slag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100861204B1 (en) * 2002-08-22 2008-09-30 주식회사 포스코 Method for collecting Linze Donawitz Gas
CN107523663A (en) * 2017-07-31 2017-12-29 河钢股份有限公司邯郸分公司 A kind of control method of RECOVERY OF CONVERTER GAS

Also Published As

Publication number Publication date
JPS5925005B2 (en) 1984-06-13

Similar Documents

Publication Publication Date Title
JPS5687617A (en) Steel making method using arc furnace
US4530102A (en) Lancing in electric arc steelmaking
JPS5669317A (en) Recovery method of steel refining furnace exhaust gas
JPS55104533A (en) Fuel control system for gas turbine
JPS56129088A (en) Control of air blow in sewage disposal
JPS545129A (en) Method and apparatus for checking operation of feedback type air fuel ratio controller of engine
US4767103A (en) Convertor pressure control device in a convertor waste gas disposing device
GB1288336A (en)
JPS54119316A (en) Slopping control method in converter
JPS5424277A (en) Wet desulfurizing method for exhaust combustion gas
JPS57184844A (en) Ventilating method for parking space
JPS5625911A (en) Controlling method of top pressure of blast furnace
JPS55161012A (en) Blowing control method of oxygen converter
JPS56115861A (en) Detecting circuit for knocking of internal combustion engine
JPS5576007A (en) Blowing control method of pure oxygen top blown converter
JPS5443805A (en) Controlling method for charging pressure of hot stove
CN116622929A (en) Method for automatically controlling opening degree of two-venturi throat of converter
JPS5629608A (en) Control of top pressure of blast furnace in case of emergency
JPS54104035A (en) Melting incinerator furnace pressure control device
JPS5391006A (en) Treating method for converter exhaust gas
JPS5625912A (en) Controlling method of top pressure of blast furnace
JPS5779109A (en) Slag cutting method in converter during tapping
JPS56123315A (en) Method for controlling blowing in converter
JPS5629603A (en) Control of top pressure of blast furnace
JPS5625914A (en) Control method of top pressure of blast furnace