JPS5693814A - Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace - Google Patents

Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace

Info

Publication number
JPS5693814A
JPS5693814A JP17027279A JP17027279A JPS5693814A JP S5693814 A JPS5693814 A JP S5693814A JP 17027279 A JP17027279 A JP 17027279A JP 17027279 A JP17027279 A JP 17027279A JP S5693814 A JPS5693814 A JP S5693814A
Authority
JP
Japan
Prior art keywords
cooling gas
gas
pipe
furnace
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.)
Pending
Application number
JP17027279A
Other languages
Japanese (ja)
Inventor
Hisashi Matsunaga
Toshiaki Oura
Kiyoshi Hashimoto
Shoki Yamano
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 JP17027279A priority Critical patent/JPS5693814A/en
Publication of JPS5693814A publication Critical patent/JPS5693814A/en
Pending 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
    • C21C5/34—Blowing through the bath

Landscapes

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

Abstract

PURPOSE:To supply cooling gas in a cheap self-supplying process by introducing pure O2 and unburnt recovered waste gas as cooling gas each separately; the O2 from the inner pipe of a double pipe at the hearth of a bottom blown refining furnace, the cooling gas from the outer pipe. CONSTITUTION:O2 gas 3 for refining is blown from the center pipe 2 of a double pipe of the hearth of a bottom blown converter 1 into molten steel 4 in the furnace, and cooling gas is blown from the outer pipe 5 to perform refining operation. Waste gas 6 generated from the furnace 1 during refining process is recovered by a recovering unit 7, sent to a reservoir 9, then sent 11 by blower 10 to a combustion equipment 12 for sequential consumption. At this time, part of the recovered gas is branched 13, is pressurized by a compressor 14, and supplied to the outer pipe 5 as cooling gas. Thus, cooling gas is self-supplied to the oxygen blowing part of the hearth, thereby preventing the associated part from erosion.
JP17027279A 1979-12-28 1979-12-28 Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace Pending JPS5693814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17027279A JPS5693814A (en) 1979-12-28 1979-12-28 Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17027279A JPS5693814A (en) 1979-12-28 1979-12-28 Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace

Publications (1)

Publication Number Publication Date
JPS5693814A true JPS5693814A (en) 1981-07-29

Family

ID=15901856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17027279A Pending JPS5693814A (en) 1979-12-28 1979-12-28 Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace

Country Status (1)

Country Link
JP (1) JPS5693814A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913013A (en) * 1982-07-12 1984-01-23 Kawasaki Steel Corp Method for protecting tuyere of blowpipe for refining molten iron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913013A (en) * 1982-07-12 1984-01-23 Kawasaki Steel Corp Method for protecting tuyere of blowpipe for refining molten iron

Similar Documents

Publication Publication Date Title
DE3376752D1 (en) Process and installation for the treatment of steel in the ladle
JPS5623215A (en) Converter steel making method
JPS5693814A (en) Method of supplying cooling medium to oxygen blowing part of bottom blown refining furnace
JPS55158213A (en) Pefining method of chromium containing steel
JPS575808A (en) Preparation of high manganese steel
GB1090826A (en) Method of smelting iron ore
HUP9602352A2 (en) Method for operating oxigen consumption shaft furnace and shaft furnace for carrying out the method
ES8100349A1 (en) A method for increasing vessel lining life for basic oxygen furnaces.
GB738510A (en) Process for removing magnesium from aluminium
JPS6431911A (en) Iron making method using molten iron trough in blast furnace
JPS6473012A (en) Refining method by using top and bottom blowing refining furnace
JPS5967307A (en) Operating method of converter
JPS5255036A (en) Automatic control method of temperature of molten steel in smelting pr ocess in arc furnace for steel manufacture
JPS56169716A (en) Removal of si from molten pig iron by blowing of oxygen gas
SU141493A1 (en) The method of obtaining waste slag and device for its implementation
JPS6475617A (en) Melting and refining method for scrap
JPS648215A (en) Method for melting iron scrap
Parkitna et al. Use of Pure Blast-Furnace Gas for Heating Soaking Pits in the Katowice Steelworks
JPS52147513A (en) Smelting method of low nitrogen steel at steel making arc furnace
GB898986A (en) Improvements in or relating to the refining of metal
Botvinskii Further Development of the Practice of Deep Blowing of an Open Hearth Bath With Oxygen, Using Roof Lances
JPS6439316A (en) Steel refining method and refining equipment
Pantke et al. Purofer is Setting New Standards for Direct Reduction
JPS5644707A (en) Blowing method of bottom blowing converter
JPS55158210A (en) Production of extra low carbon steel