SE9300969L - Ways to adjust the amount of deoxidizing agents and / or alloying agents added to a melt in a metallurgical vessel - Google Patents

Ways to adjust the amount of deoxidizing agents and / or alloying agents added to a melt in a metallurgical vessel

Info

Publication number
SE9300969L
SE9300969L SE9300969A SE9300969A SE9300969L SE 9300969 L SE9300969 L SE 9300969L SE 9300969 A SE9300969 A SE 9300969A SE 9300969 A SE9300969 A SE 9300969A SE 9300969 L SE9300969 L SE 9300969L
Authority
SE
Sweden
Prior art keywords
agents
melt
ways
adjust
amount
Prior art date
Application number
SE9300969A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE501054C2 (en
SE9300969D0 (en
Inventor
Haakan Wahlberg
Lars Oskarsson
Original Assignee
Ssab Tunnplaat Ab
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 Ssab Tunnplaat Ab filed Critical Ssab Tunnplaat Ab
Priority to SE9300969A priority Critical patent/SE501054C2/en
Publication of SE9300969D0 publication Critical patent/SE9300969D0/en
Priority to PCT/SE1994/000872 priority patent/WO1996009414A1/en
Publication of SE9300969L publication Critical patent/SE9300969L/en
Publication of SE501054C2 publication Critical patent/SE501054C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • 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
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
    • G01F23/165—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type
    • G01F23/168—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type with electric indicating or recording
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/12—Dippers; Dredgers
    • G01N1/125—Dippers; Dredgers adapted for sampling molten metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

In chill metallurgy, the slag thickness and density are measured with a lance (14) which is pushed through the slag (13) down into the smelt (12). To the lance is fed a constant flow of argon gas and the counter pressure in the lance and the lance position is logged when it is pushed downwards. From this value is obtained the slag thickness and density. With knowledge of the chill area, the amt. of slag can then be calculated, which is an important parameter which is used for optimising the process.
SE9300969A 1993-03-24 1993-03-24 Adjusting amt. of deoxidation substances and/or alloy bodies added to smelt - involves measurement of slag thickness and density with lance pushed through slag into smelt SE501054C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9300969A SE501054C2 (en) 1993-03-24 1993-03-24 Adjusting amt. of deoxidation substances and/or alloy bodies added to smelt - involves measurement of slag thickness and density with lance pushed through slag into smelt
PCT/SE1994/000872 WO1996009414A1 (en) 1993-03-24 1994-09-21 A method of adapting the amounts of additives such as deoxidizers and/or alloying elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9300969A SE501054C2 (en) 1993-03-24 1993-03-24 Adjusting amt. of deoxidation substances and/or alloy bodies added to smelt - involves measurement of slag thickness and density with lance pushed through slag into smelt
PCT/SE1994/000872 WO1996009414A1 (en) 1993-03-24 1994-09-21 A method of adapting the amounts of additives such as deoxidizers and/or alloying elements

Publications (3)

Publication Number Publication Date
SE9300969D0 SE9300969D0 (en) 1993-03-24
SE9300969L true SE9300969L (en) 1994-09-25
SE501054C2 SE501054C2 (en) 1994-10-31

Family

ID=26661690

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300969A SE501054C2 (en) 1993-03-24 1993-03-24 Adjusting amt. of deoxidation substances and/or alloy bodies added to smelt - involves measurement of slag thickness and density with lance pushed through slag into smelt

Country Status (2)

Country Link
SE (1) SE501054C2 (en)
WO (1) WO1996009414A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501054C2 (en) * 1993-03-24 1994-10-31 Ssab Tunnplaat Ab Adjusting amt. of deoxidation substances and/or alloy bodies added to smelt - involves measurement of slag thickness and density with lance pushed through slag into smelt
CN113932879A (en) * 2021-09-26 2022-01-14 中国恩菲工程技术有限公司 Automatic detection device for high-temperature melt

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501054C2 (en) * 1993-03-24 1994-10-31 Ssab Tunnplaat Ab Adjusting amt. of deoxidation substances and/or alloy bodies added to smelt - involves measurement of slag thickness and density with lance pushed through slag into smelt

Also Published As

Publication number Publication date
SE501054C2 (en) 1994-10-31
SE9300969D0 (en) 1993-03-24
WO1996009414A1 (en) 1996-03-28

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