EP0436718A4 - Verfahren zum erzchargieren bei der schmelzreduktion. - Google Patents

Verfahren zum erzchargieren bei der schmelzreduktion.

Info

Publication number
EP0436718A4
EP0436718A4 EP19880907777 EP88907777A EP0436718A4 EP 0436718 A4 EP0436718 A4 EP 0436718A4 EP 19880907777 EP19880907777 EP 19880907777 EP 88907777 A EP88907777 A EP 88907777A EP 0436718 A4 EP0436718 A4 EP 0436718A4
Authority
EP
European Patent Office
Prior art keywords
reduction stage
melting reduction
ores during
loading
loading ores
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
EP19880907777
Other languages
English (en)
French (fr)
Other versions
EP0436718B1 (de
EP0436718A1 (de
Inventor
Haruyoshi Nkk Corporati Tanabe
Masahiro Nkk Corporat Kawakami
Kenji Nkk Corporatio Takahashi
Katsuhiro Nkk Corporat Iwasaki
Shigeru Nkk Corporation- Inoue
Hitoshi Nkk Corporation Kawata
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 JP63020472A external-priority patent/JPH01165743A/ja
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Publication of EP0436718A4 publication Critical patent/EP0436718A4/de
Publication of EP0436718A1 publication Critical patent/EP0436718A1/de
Application granted granted Critical
Publication of EP0436718B1 publication Critical patent/EP0436718B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • 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
    • C21C5/005—Manufacture of stainless steel
    • 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
    • C21C5/35—Blowing from above and through the bath
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • F27D99/0075—Gas curtain seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/16—Particulate material, e.g. comminuted scrap

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP88907777A 1987-09-10 1988-09-09 Verfahren zum erzchargieren bei der schmelzreduktion Expired - Lifetime EP0436718B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP22525387 1987-09-10
JP225253/87 1987-09-10
JP63020472A JPH01165743A (ja) 1987-09-10 1988-01-29 鉱石の溶融還元における原料装入方法
JP20472/88 1988-01-29
PCT/JP1988/000911 WO1989002477A1 (fr) 1987-09-10 1988-09-09 Procede de chargement de minerais pendant une etape de reduction en fusion

Publications (3)

Publication Number Publication Date
EP0436718A4 true EP0436718A4 (de) 1989-12-28
EP0436718A1 EP0436718A1 (de) 1991-07-17
EP0436718B1 EP0436718B1 (de) 1994-07-06

Family

ID=27283057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88907777A Expired - Lifetime EP0436718B1 (de) 1987-09-10 1988-09-09 Verfahren zum erzchargieren bei der schmelzreduktion

Country Status (2)

Country Link
EP (1) EP0436718B1 (de)
AU (1) AU620344B2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412786B (de) * 2003-07-04 2005-07-25 Voest Alpine Industrieanalgenb Verfahren zum chargieren von schüttfähigem material und vorrichtung zur durchführung des verfahrens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784037A (en) * 1954-08-18 1957-03-05 Rexroth Alfred Apparatus for shooting material into cupolas
US3462263A (en) * 1965-08-11 1969-08-19 John H Walsh Reduction of iron ore
EP0079182A1 (de) * 1981-10-30 1983-05-18 British Steel Corporation Stahlherstellungsverfahren
US4541866A (en) * 1984-01-26 1985-09-17 Westinghouse Electric Corp. Hot injection ladle metallurgy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169055A (en) * 1961-10-12 1965-02-09 Stora Kopparbergs Bergslags Ab Process for producing pig iron in rotary furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784037A (en) * 1954-08-18 1957-03-05 Rexroth Alfred Apparatus for shooting material into cupolas
US3462263A (en) * 1965-08-11 1969-08-19 John H Walsh Reduction of iron ore
EP0079182A1 (de) * 1981-10-30 1983-05-18 British Steel Corporation Stahlherstellungsverfahren
US4541866A (en) * 1984-01-26 1985-09-17 Westinghouse Electric Corp. Hot injection ladle metallurgy

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 139 (C-420)[2586], 7th May 1987; & JP-A-61 279 609 (SUMITOMO METAL IND. LTD) 10-12-1986 *
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 232 (C-437)[2679], 29th July 1987; & JP-A-62 044 533 (KAWASAKI STEEL CORP.) 26-02-1987 *
PATENT ABSTRACTS OF JAPAN, vol. 6, no. 244 (C-138)[1122], 2nd December 1982; & JP-A-57 143 419 (SHIN NIPPON SEITETSU K.K.) 04-09-1982 *
See also references of WO8902477A1 *

Also Published As

Publication number Publication date
EP0436718B1 (de) 1994-07-06
AU620344B2 (en) 1992-02-20
AU2305588A (en) 1989-04-17
EP0436718A1 (de) 1991-07-17

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