JPS55154517A - Detecting method for furnace condition of converter - Google Patents

Detecting method for furnace condition of converter

Info

Publication number
JPS55154517A
JPS55154517A JP6354379A JP6354379A JPS55154517A JP S55154517 A JPS55154517 A JP S55154517A JP 6354379 A JP6354379 A JP 6354379A JP 6354379 A JP6354379 A JP 6354379A JP S55154517 A JPS55154517 A JP S55154517A
Authority
JP
Japan
Prior art keywords
sound
signal
change
blowing
converter
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
JP6354379A
Other languages
Japanese (ja)
Other versions
JPS5753841B2 (en
Inventor
Nagayasu Bessho
Kyoji Nakanishi
Tsutomu Nozaki
Ryuichi Asaho
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 JP6354379A priority Critical patent/JPS55154517A/en
Publication of JPS55154517A publication Critical patent/JPS55154517A/en
Publication of JPS5753841B2 publication Critical patent/JPS5753841B2/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 make it possible to judge the conditions of a converter exactly, by producing a sound, having a frequency zone different from that of the sound of blowing now in operation and that of environmental noise, at a prescribed position in the furnace, and by detecting the change in the sound strength caused by the propagation of the sound in the furnace. CONSTITUTION:An AC signal, which is produced by a sine wave generator 40 of a top-blown converter and which has constant amplitude and frequency of a frequency zone different from that of blowing sound and from that of the environmental noise, is amplified by an amplifier 42. Then the voice coil 44a of a speaker 44 is energized, and the AC signal is converted to a sound signal by a diaphragm 44c. The sound signal is sent to a prescribed position above very near the molten steel surface by a transmission tube 46 of the sound wave. The transmitted sound is collected through slag 12, a wave guide 20 by a microphone 22, then after passing through a one-third octave analyzer 26, it is converted to DC by a AC-DC change-over switch 28. The DC is recorded by a recorder 30, whereby the change in the strength of sound wave during blowing is detected.
JP6354379A 1979-05-22 1979-05-22 Detecting method for furnace condition of converter Granted JPS55154517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6354379A JPS55154517A (en) 1979-05-22 1979-05-22 Detecting method for furnace condition of converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6354379A JPS55154517A (en) 1979-05-22 1979-05-22 Detecting method for furnace condition of converter

Publications (2)

Publication Number Publication Date
JPS55154517A true JPS55154517A (en) 1980-12-02
JPS5753841B2 JPS5753841B2 (en) 1982-11-15

Family

ID=13232231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6354379A Granted JPS55154517A (en) 1979-05-22 1979-05-22 Detecting method for furnace condition of converter

Country Status (1)

Country Link
JP (1) JPS55154517A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113061684A (en) * 2021-03-11 2021-07-02 莱芜钢铁集团银山型钢有限公司 Converter dynamic bottom blowing method based on audio slagging
EP4183890A4 (en) * 2020-07-14 2023-08-09 JFE Steel Corporation Dehydrogenation method for steel material and steel product, and manufacturing method for steel material and steel product

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4183890A4 (en) * 2020-07-14 2023-08-09 JFE Steel Corporation Dehydrogenation method for steel material and steel product, and manufacturing method for steel material and steel product
CN113061684A (en) * 2021-03-11 2021-07-02 莱芜钢铁集团银山型钢有限公司 Converter dynamic bottom blowing method based on audio slagging

Also Published As

Publication number Publication date
JPS5753841B2 (en) 1982-11-15

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