[go: up one dir, main page]

GB2003929A - Controlling converter blow end-point by waste gas analysis - Google Patents

Controlling converter blow end-point by waste gas analysis

Info

Publication number
GB2003929A
GB2003929A GB7834135A GB7834135A GB2003929A GB 2003929 A GB2003929 A GB 2003929A GB 7834135 A GB7834135 A GB 7834135A GB 7834135 A GB7834135 A GB 7834135A GB 2003929 A GB2003929 A GB 2003929A
Authority
GB
United Kingdom
Prior art keywords
point
waste gas
blow
carbon content
gas analysis
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
GB7834135A
Other versions
GB2003929B (en
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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
Priority claimed from JP10084977A external-priority patent/JPS5433817A/en
Priority claimed from JP52132910A external-priority patent/JPS5854170B2/en
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of GB2003929A publication Critical patent/GB2003929A/en
Application granted granted Critical
Publication of GB2003929B publication Critical patent/GB2003929B/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
    • C21C5/30—Regulating or controlling the blowing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A method for converter blow end- point control which comprises performing waste gas analyses either continuously or at timed intervals in a final stage of the blow, and determining the end-point of the blow when the carbon content of the bath coincides with a target carbon content wherein said control is effected by making use of a differential decarburization rate equation which takes account of the delay time of waste gas information between the time of occurrence of the decarburization reaction in the converter and the time of said information being detected as decarburization rate data, and a functional equation for improving the predictability of the carbon content of the bath at the end-point of the blow.
GB7834135A 1977-08-22 1978-08-22 Method for converter blow control Expired GB2003929B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10084977A JPS5433817A (en) 1977-08-22 1977-08-22 Method of controlling biowing of converter
JP52132910A JPS5854170B2 (en) 1977-11-04 1977-11-04 Converter control method

Publications (2)

Publication Number Publication Date
GB2003929A true GB2003929A (en) 1979-03-21
GB2003929B GB2003929B (en) 1982-05-26

Family

ID=26441805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834135A Expired GB2003929B (en) 1977-08-22 1978-08-22 Method for converter blow control

Country Status (6)

Country Link
AU (1) AU507553B1 (en)
BR (1) BR7805395A (en)
CA (1) CA1118212A (en)
DE (1) DE2836694C2 (en)
FR (1) FR2401226A1 (en)
GB (1) GB2003929B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8494679B2 (en) 2009-12-23 2013-07-23 Sms Siemag Aktiengesellschaft Control of the converter process by means of exhaust gas signals
CN115341069A (en) * 2021-05-14 2022-11-15 宝山钢铁股份有限公司 Molten steel carbon content prediction control method of converter blowing end point based on online dynamic detection model
CN115407026A (en) * 2022-09-01 2022-11-29 张家港荣盛特钢有限公司 Method and device for detecting carbon content of converter, storage medium and electronic equipment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217933C2 (en) * 1992-05-30 1995-03-23 Georgsmarienhuette Gmbh Method for determining the end point for the fresh process in oxygen converters
AT406587B (en) * 1997-07-08 2000-06-26 Voest Alpine Stahl Process for determining the end of blowing during the refining of a steel melt in a converter
CN114150102B (en) * 2021-11-26 2023-05-02 德龙钢铁有限公司 Flue fan control method based on dynamic decarburization rate of combined blown converter molten pool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720404A (en) * 1967-06-27 1973-03-13 Westinghouse Electric Corp System for controlling carbon removal in a basic oxygen furnace
US3779744A (en) * 1972-04-05 1973-12-18 Westinghouse Electric Corp Modification and improvement to dynamic bof control
JPS5131002B2 (en) * 1972-12-11 1976-09-04
DE2505065B2 (en) * 1975-02-06 1976-12-16 Siemens AG, 1000 Berlin und 8000 München PROCEDURE FOR DETERMINING THE ACTUAL CARBON CONTENT OF THE OXYGEN INFLATABLE CONVERTER DURING BUBBLING

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8494679B2 (en) 2009-12-23 2013-07-23 Sms Siemag Aktiengesellschaft Control of the converter process by means of exhaust gas signals
CN115341069A (en) * 2021-05-14 2022-11-15 宝山钢铁股份有限公司 Molten steel carbon content prediction control method of converter blowing end point based on online dynamic detection model
CN115407026A (en) * 2022-09-01 2022-11-29 张家港荣盛特钢有限公司 Method and device for detecting carbon content of converter, storage medium and electronic equipment

Also Published As

Publication number Publication date
DE2836694C2 (en) 1985-05-15
CA1118212A (en) 1982-02-16
BR7805395A (en) 1979-05-02
FR2401226B1 (en) 1980-07-18
DE2836694A1 (en) 1979-03-08
FR2401226A1 (en) 1979-03-23
AU507553B1 (en) 1980-02-21
GB2003929B (en) 1982-05-26

Similar Documents

Publication Publication Date Title
DE3175274D1 (en) Analytical method for the determination of nitrogen, carbon, hydrogen and sulfur or chlorine and apparatus therefor
ATE54333T1 (en) METHOD OF SMELTING REDUCTION OF IRON ORES.
GB2003929A (en) Controlling converter blow end-point by waste gas analysis
ES461548A1 (en) Method for control of the carburization of parts in a vacuum furnace
ES8202639A1 (en) Method and reagent for the detection of Fibrin monomer.
AU589633B2 (en) Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining
ES8402599A1 (en) Aromatic - diene - pivalolactone block copolymer
DE3162611D1 (en) METHOD OF GAS-CHROMIZING STEELS
EP0321271A3 (en) Method for producing the hgiai restriction endonuclease and methylase
Ohya et al. Desulfurization of Hot Metal With Burnt Lime.(Retroactive Coverage)
GB1153938A (en) Improvements in and relating to the Refining of Pig Iron
JPS52141804A (en) Treatment of waste oil
JPS55161012A (en) Blowing control method of oxygen converter
AU6627581A (en) Process for the manufacture of p-hydroxyphenylacetic acid
JPS5424213A (en) Manufacture of ultra low phosphorus steel in converter
JPS5437018A (en) Method of controlling end point in operation of converter
JPS5490869A (en) Method of treating waste water produced upon desulfurizing of coke oven gas with cleanser containing organic oxygen medium
JPS5387908A (en) Treating method for dust from iron manufacture
JPS5381416A (en) Vacuum degassing method for molten steel
JPS5381417A (en) Vacuum degassing method for molten steel
JPS53120617A (en) Converter refining method
JPS5219460A (en) Chrome-containing sludge treating methop
ES8701846A1 (en) Converter process for steel mfr.
Mikulecky Production and Testing of Low-Sulfur Steel at Texas Works.(Retroactive Coverage)
JPS5439391A (en) Method of regenerating high temperature gas refining catalyst

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee