JPS565913A - Coolant preheating method by utilizing converter bottom blowing tuyere - Google Patents

Coolant preheating method by utilizing converter bottom blowing tuyere

Info

Publication number
JPS565913A
JPS565913A JP8147479A JP8147479A JPS565913A JP S565913 A JPS565913 A JP S565913A JP 8147479 A JP8147479 A JP 8147479A JP 8147479 A JP8147479 A JP 8147479A JP S565913 A JPS565913 A JP S565913A
Authority
JP
Japan
Prior art keywords
coolants
converter
grain
size
tuyeres
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
JP8147479A
Other languages
Japanese (ja)
Other versions
JPS5934201B2 (en
Inventor
Eiji Ikezaki
Kazuyuki Iwamatsu
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP8147479A priority Critical patent/JPS5934201B2/en
Publication of JPS565913A publication Critical patent/JPS565913A/en
Publication of JPS5934201B2 publication Critical patent/JPS5934201B2/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
    • C21C5/48—Bottoms or tuyéres of converters

Landscapes

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

Abstract

PURPOSE:To prevent tuyere clogging by large-grain-size coolants and let smooth preheating of the coolants in the converter be effected by charging the coolants having shape functions of pebble beds or the like into the converter prior to charging of the large-grain-size coolants into the converter at the preheating of the coolants in the converter. CONSTITUTION:A plurality of bottom blowing tuyeres 2 of a converter are disposed in the form of being penetrated through converter bottom refractory materials 1. A pebble bed 3 is formed in the converter bottom portion by the small-grain-size coolants having beforehand been sized. Large-grain-size coolants such as slab cut piece alloy iron (Fe-Cr, Fe-Ni or the like) are lamineted on this bed 3. As a result of this, the mixed fluid of the hydrocarbon-base fluid and pure oxygen discharged from the tuyeres 2 is let to ascend toward the converter port direction as combustion gas 8 while it is being let to make rapid combustion reaction and preheat the inside of the coolant-packed layers. Hence, the stable operation of refining which prevents the tuyeres 2 from being clogged and does not induce any unmelting phenomenon of the coolants, deviation of the components of molten steel, etc. may be accomplished.
JP8147479A 1979-06-29 1979-06-29 Cold material preheating method using converter bottom blowing tuyeres Expired JPS5934201B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8147479A JPS5934201B2 (en) 1979-06-29 1979-06-29 Cold material preheating method using converter bottom blowing tuyeres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8147479A JPS5934201B2 (en) 1979-06-29 1979-06-29 Cold material preheating method using converter bottom blowing tuyeres

Publications (2)

Publication Number Publication Date
JPS565913A true JPS565913A (en) 1981-01-22
JPS5934201B2 JPS5934201B2 (en) 1984-08-21

Family

ID=13747392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8147479A Expired JPS5934201B2 (en) 1979-06-29 1979-06-29 Cold material preheating method using converter bottom blowing tuyeres

Country Status (1)

Country Link
JP (1) JPS5934201B2 (en)

Also Published As

Publication number Publication date
JPS5934201B2 (en) 1984-08-21

Similar Documents

Publication Publication Date Title
US2855293A (en) Method and apparatus for treating molten metal with oxygen
DE2723857A1 (en) METHOD AND DEVICE FOR STEEL PRODUCTION
CA1193442A (en) Steelmaking
US2750277A (en) Process and apparatus for reducing and smelting iron
US3554521A (en) The treating or refining of metal
US3230074A (en) Process of making iron-aluminum alloys and components thereof
DE60303802T2 (en) FRESHING OF FERRO ALLOYS
CA1188518A (en) Metal refining processes
US1031257A (en) Process and apparatus for extracting and refining metals and alloys.
JPS565913A (en) Coolant preheating method by utilizing converter bottom blowing tuyere
EP0328677A4 (en) PROCESS FOR MELT REDUCTION OF Cr STARTING MATERIAL AND MELT REDUCTION FURNACE.
DD215803A5 (en) METHOD AND METHOD FOR CARRYING OUT METALLURGICAL OR CHEMICAL PROCESSES AND LOW-HEATING TOOLS
CA1202181A (en) Process to produce low hydrogen steel
CA1042215A (en) Method for refining pig iron into steel
EP0490743B1 (en) Method for controlling metal oxide fume generation during the oxygen-induced subdivision of a body containing metal values
US2502284A (en) Decarburization of steel
SU629888A3 (en) Method of continuous steel-making
JPS5760011A (en) Production of steel in electric furnace for steel making and its device
JPS51151204A (en) A cupola for melting metal with auxiliary fuel and refining with coke
JPS62167808A (en) Production of molten chromium iron
UA2124A1 (en) METHOD for producing METALS AND ALLOYS AND device FOR REALIZATION the same
JPS5696004A (en) Iron and steel making plant
SU729251A1 (en) Method of steel casting in hearth steel-melting set
JPS5655528A (en) Melt refining method for metal
Pehlke Steelmaking Processes