JPS56119717A - Method for detecting condition of converter - Google Patents

Method for detecting condition of converter

Info

Publication number
JPS56119717A
JPS56119717A JP2384880A JP2384880A JPS56119717A JP S56119717 A JPS56119717 A JP S56119717A JP 2384880 A JP2384880 A JP 2384880A JP 2384880 A JP2384880 A JP 2384880A JP S56119717 A JPS56119717 A JP S56119717A
Authority
JP
Japan
Prior art keywords
converter
blowing
tuyere
frequency band
frequency
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
JP2384880A
Other languages
Japanese (ja)
Other versions
JPS6157369B2 (en
Inventor
Nagayasu Bessho
Osamu Haida
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 JP2384880A priority Critical patent/JPS56119717A/en
Publication of JPS56119717A publication Critical patent/JPS56119717A/en
Publication of JPS6157369B2 publication Critical patent/JPS6157369B2/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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices

Landscapes

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

Abstract

PURPOSE:To easily know furnace conditions from the change in sound wave intensity by charging the sounds of a frequency differing in frequency band from that of the blowing sound during blowing in a converter or environmental noise while blowing an inert gas through the tuyere provided to the side wall of the converter. CONSTITUTION:A hole 32 in a horizontal direction is formed to the side wall of a converter 18 in the prescribed position above the interface between a steel bath 10 and slag 12, and a tuyere 34 is inserted therethrough, thence an inert gas is blown through a blow port 36 in a manner as to prevent the entry of slag. A vessel 38 is provided to the end part of the tuyere 34, and a small-sized speaker 44 is built therein and is connected to a high-frequency current generator 40 via an amplifier 42. The AC current signal of frequencies differing in frequency band and a constant amplitude is sent from this generator 40 into the furnace. The sounds thereof are picked up in a microphone 22 through a waveguide 20, and are passed through a band-pass filter 26A or 26B which allows the passage of the frequency band corresponding to the oscillated frequencies. These are converted to DC currents by an AC-DC converter 28, and the change of sound intensity with time during blowing is recorded with a recorder 30, whereby the furnace conditions are surely detected.
JP2384880A 1980-02-27 1980-02-27 Method for detecting condition of converter Granted JPS56119717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2384880A JPS56119717A (en) 1980-02-27 1980-02-27 Method for detecting condition of converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2384880A JPS56119717A (en) 1980-02-27 1980-02-27 Method for detecting condition of converter

Publications (2)

Publication Number Publication Date
JPS56119717A true JPS56119717A (en) 1981-09-19
JPS6157369B2 JPS6157369B2 (en) 1986-12-06

Family

ID=12121820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2384880A Granted JPS56119717A (en) 1980-02-27 1980-02-27 Method for detecting condition of converter

Country Status (1)

Country Link
JP (1) JPS56119717A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102308173A (en) * 2009-02-03 2012-01-04 西门子公司 Method and device for controlling a carbon monoxide output of an electric arc light oven

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753841A (en) * 1980-07-31 1982-03-31 Philips Nv

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753841A (en) * 1980-07-31 1982-03-31 Philips Nv

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102308173A (en) * 2009-02-03 2012-01-04 西门子公司 Method and device for controlling a carbon monoxide output of an electric arc light oven
JP2012516938A (en) * 2009-02-03 2012-07-26 シーメンス アクチエンゲゼルシヤフト Method and apparatus for controlling carbon monoxide emissions in an electric arc furnace

Also Published As

Publication number Publication date
JPS6157369B2 (en) 1986-12-06

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