PL436679A1 - Sposób wytapiania stali bezpośrednio z rudy żelaza - Google Patents

Sposób wytapiania stali bezpośrednio z rudy żelaza

Info

Publication number
PL436679A1
PL436679A1 PL436679A PL43667921A PL436679A1 PL 436679 A1 PL436679 A1 PL 436679A1 PL 436679 A PL436679 A PL 436679A PL 43667921 A PL43667921 A PL 43667921A PL 436679 A1 PL436679 A1 PL 436679A1
Authority
PL
Poland
Prior art keywords
reactor
carbon
introducing
iron ore
iron
Prior art date
Application number
PL436679A
Other languages
English (en)
Inventor
Marian Niesler
Janusz Stecko
Jan Mróz
Original Assignee
Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza Im. Stanisława Staszica W Gliwicach
Jan Mróz
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 Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza Im. Stanisława Staszica W Gliwicach, Jan Mróz filed Critical Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza Im. Stanisława Staszica W Gliwicach
Priority to PL436679A priority Critical patent/PL436679A1/pl
Priority to PCT/PL2021/000092 priority patent/WO2022154680A1/en
Priority to KR1020237026300A priority patent/KR20230131876A/ko
Priority to US18/271,445 priority patent/US20240052440A1/en
Priority to EP21851714.2A priority patent/EP4278018A1/en
Publication of PL436679A1 publication Critical patent/PL436679A1/pl

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
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
    • C21B13/026—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state heated electrically
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Przedmiotem wynalazku jest sposób wytapiania stali węglowych bezpośrednio z rudy żelaza w jednym reaktorze metalurgicznym, polegający na wprowadzeniu do reaktora przez wdmuchiwanie, miałkich rud żelaza i miałkich topników od góry reaktora oraz reduktora gazowego w postaci mieszaniny wodoru lub mieszaniny wodoru i tlenku węgla i prowadzeniu redukcji tlenków żelaza w fazie ciekłej, przy czym pożądaną, końcową zawartość węgla w stali reguluje się poprzez wprowadzenie takiej ilości węgla bezpośrednio do kąpieli metalowej, która zapewnia osiągnięcie założonego poziomu nawęglenia stali lub przez wprowadzenie do wsadu żelazonośnego określonej ilość reduktora węglowego w postaci koksiku charakteryzujący się tym, że energia cieplna w reaktorze jest generowana w procesie spalania gazu ziemnego tlenem w górnej części reaktora, zaś dostarczony nadmiar gazu ziemnego w stosunku do ilości wynikających ze stechiometrii procesu spalania jest termicznie rozkładany na węgiel i wodór cząsteczkowy zapewniając atmosferę redukcyjną w dolnej części reaktora.
PL436679A 2021-01-18 2021-01-18 Sposób wytapiania stali bezpośrednio z rudy żelaza PL436679A1 (pl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL436679A PL436679A1 (pl) 2021-01-18 2021-01-18 Sposób wytapiania stali bezpośrednio z rudy żelaza
PCT/PL2021/000092 WO2022154680A1 (en) 2021-01-18 2021-12-10 Method of steel smelting directly from iron ore
KR1020237026300A KR20230131876A (ko) 2021-01-18 2021-12-10 철광석으로부터 직접 강철을 용련하는 방법
US18/271,445 US20240052440A1 (en) 2021-01-18 2021-12-10 Method of steel smelting directly from iron ore
EP21851714.2A EP4278018A1 (en) 2021-01-18 2021-12-10 Method of steel smelting directly from iron ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL436679A PL436679A1 (pl) 2021-01-18 2021-01-18 Sposób wytapiania stali bezpośrednio z rudy żelaza

Publications (1)

Publication Number Publication Date
PL436679A1 true PL436679A1 (pl) 2022-07-25

Family

ID=80122759

Family Applications (1)

Application Number Title Priority Date Filing Date
PL436679A PL436679A1 (pl) 2021-01-18 2021-01-18 Sposób wytapiania stali bezpośrednio z rudy żelaza

Country Status (5)

Country Link
US (1) US20240052440A1 (pl)
EP (1) EP4278018A1 (pl)
KR (1) KR20230131876A (pl)
PL (1) PL436679A1 (pl)
WO (1) WO2022154680A1 (pl)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL236288A2 (en) 1982-05-05 1983-03-14 Glowne B St I P Gorniczych Method of recovering heat from air compression and apparatus therefor
AU582453B2 (en) * 1985-07-18 1989-03-23 Kabushiki Kaisha Kobe Seiko Sho Melt-reductive iron making method from iron ore
DE3629055A1 (de) * 1986-08-27 1988-03-03 Kloeckner Cra Tech Verfahren zum gesteigerten energieeinbringen in elektrolichtbogenoefen
AT402939B (de) * 1992-07-16 1997-09-25 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer metallschmelze
AT400245B (de) * 1993-12-10 1995-11-27 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze
CN101519706A (zh) * 2009-02-24 2009-09-02 上海大学 底吹氢气熔融还原铁矿石的方法及其装置
JP6413710B2 (ja) * 2014-12-02 2018-10-31 新日鐵住金株式会社 直流アーク式電気炉による高純度鋼の製造方法
CN105296699B (zh) * 2015-10-29 2017-07-18 东北大学 一种避免预还原矿再氧化的熔融还原炼铁装置及方法
CN113337669B (zh) * 2021-05-18 2022-05-03 北京科技大学 一种底吹氢气强化电炉冶炼的方法

Also Published As

Publication number Publication date
WO2022154680A1 (en) 2022-07-21
US20240052440A1 (en) 2024-02-15
KR20230131876A (ko) 2023-09-14
EP4278018A1 (en) 2023-11-22

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