BE794545A - Injecting reducing gases into blast furnaces - in a pulsating mode to avoid tuyere blockages by the charge - Google Patents

Injecting reducing gases into blast furnaces - in a pulsating mode to avoid tuyere blockages by the charge

Info

Publication number
BE794545A
BE794545A BE794545DA BE794545A BE 794545 A BE794545 A BE 794545A BE 794545D A BE794545D A BE 794545DA BE 794545 A BE794545 A BE 794545A
Authority
BE
Belgium
Prior art keywords
blockages
charge
reducing gases
pulsating mode
blast furnaces
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Centre Rech Metallurgique
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.)
Publication date
Publication of BE794545A publication Critical patent/BE794545A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents

Landscapes

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

Abstract

Process for injecting hot reducing, partic reformed, gases contg. principally CO and H2 into a blast furnace, opt. with simultaneous injection of liq. fuel through the main tuyeres, in which the hot reducing gases and/or liq. fuel are injected in a pulsating mode e.g. moving sinusoidally or in steps. Pulsations are obtd. e.g. by varying the temp. of the gases injected by plus-or-minus 50 degrees C of an avge. value of 900 degrees C.
BE794545D 1973-01-25 Injecting reducing gases into blast furnaces - in a pulsating mode to avoid tuyere blockages by the charge BE794545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE794545 1973-01-25

Publications (1)

Publication Number Publication Date
BE794545A true BE794545A (en) 1973-07-25

Family

ID=3860686

Family Applications (1)

Application Number Title Priority Date Filing Date
BE794545D BE794545A (en) 1973-01-25 Injecting reducing gases into blast furnaces - in a pulsating mode to avoid tuyere blockages by the charge

Country Status (2)

Country Link
BE (1) BE794545A (en)
LU (1) LU69212A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19729624A1 (en) * 1997-07-02 1999-01-07 Westfalen Ag Furnace for thermal treatment of raw material e.g. iron
US8173064B2 (en) 2005-11-09 2012-05-08 Thyssenkrupp At.Pro Tec Gmbh Method for operating a shaft furnace, and shaft furnance operable by that method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19729624A1 (en) * 1997-07-02 1999-01-07 Westfalen Ag Furnace for thermal treatment of raw material e.g. iron
DE19729624B4 (en) * 1997-07-02 2006-07-20 Gerd König Method and shaft furnace for the thermal treatment of a raw material
US8173064B2 (en) 2005-11-09 2012-05-08 Thyssenkrupp At.Pro Tec Gmbh Method for operating a shaft furnace, and shaft furnance operable by that method
US8444910B2 (en) 2005-11-09 2013-05-21 Thyssenkrupp At.Pro Tec Gmbh Method for operating a shaft furnace, and shaft furnace operable by that method

Also Published As

Publication number Publication date
LU69212A1 (en) 1974-04-08

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