GB1079572A - Use of sound signals to monitor metal refining operations - Google Patents

Use of sound signals to monitor metal refining operations

Info

Publication number
GB1079572A
GB1079572A GB1838865A GB1838865A GB1079572A GB 1079572 A GB1079572 A GB 1079572A GB 1838865 A GB1838865 A GB 1838865A GB 1838865 A GB1838865 A GB 1838865A GB 1079572 A GB1079572 A GB 1079572A
Authority
GB
United Kingdom
Prior art keywords
converter
sound signals
iron
band
metal refining
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.)
Expired
Application number
GB1838865A
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1079572A publication Critical patent/GB1079572A/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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

In an arrangement for detecting the foaming of slag in an iron-refining converter, a signal proportional exclusively to the level of sound having a frequency in the range 100 c/s to 600 c/s is obtained by apparatus comprising a microphone positioned above the converter and feeding an amplifier, a band-pass filter, and a detection stage. The said signal is indicated on a strip recorder, an ammeter, or a "Magic Eye", and the band-pass range is preferably 150 c/s to 300 c/s. In a specific embodiment the microphone is mounted on a sound guide in a hood over the converter, in which molten pig-iron is transformed into steel by top-blowing with an oxygen-powdered chalk suspension blown down a lance.
GB1838865A 1964-05-02 1965-04-30 Use of sound signals to monitor metal refining operations Expired GB1079572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU46012 1964-05-02

Publications (1)

Publication Number Publication Date
GB1079572A true GB1079572A (en) 1967-08-16

Family

ID=19723772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1838865A Expired GB1079572A (en) 1964-05-02 1965-04-30 Use of sound signals to monitor metal refining operations

Country Status (3)

Country Link
DE (1) DE1458831B2 (en)
GB (1) GB1079572A (en)
LU (1) LU46012A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150692A (en) * 1983-11-30 1985-07-03 Squibb & Sons Inc Apparatus and method for coating tablets
GB2211938A (en) * 1987-11-05 1989-07-12 Atomic Energy Authority Uk Acoustic monitoring of plant operation
EP1918703A1 (en) * 2007-02-07 2008-05-07 Corus UK LTD. Acoustic emission control of slag height in a steelmaking process
CN109239193A (en) * 2018-10-26 2019-01-18 山东钢铁股份有限公司 A method of for detecting converter slag

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152371B4 (en) 2001-10-24 2004-04-15 Sms Demag Ag Method and device for determining the foam slag heights during the fresh process in a blow steel converter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150692A (en) * 1983-11-30 1985-07-03 Squibb & Sons Inc Apparatus and method for coating tablets
GB2211938A (en) * 1987-11-05 1989-07-12 Atomic Energy Authority Uk Acoustic monitoring of plant operation
EP1918703A1 (en) * 2007-02-07 2008-05-07 Corus UK LTD. Acoustic emission control of slag height in a steelmaking process
CN109239193A (en) * 2018-10-26 2019-01-18 山东钢铁股份有限公司 A method of for detecting converter slag
CN109239193B (en) * 2018-10-26 2021-05-04 山东钢铁股份有限公司 Method for detecting converter slag

Also Published As

Publication number Publication date
DE1458831B2 (en) 1971-11-18
LU46012A1 (en) 1965-11-03
DE1458831A1 (en) 1969-01-16

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