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FR2398803A1 - Annular gas jet injected into blast furnace - to protect the cooling elements - Google Patents

Annular gas jet injected into blast furnace - to protect the cooling elements

Info

Publication number
FR2398803A1
FR2398803A1 FR7723011A FR7723011A FR2398803A1 FR 2398803 A1 FR2398803 A1 FR 2398803A1 FR 7723011 A FR7723011 A FR 7723011A FR 7723011 A FR7723011 A FR 7723011A FR 2398803 A1 FR2398803 A1 FR 2398803A1
Authority
FR
France
Prior art keywords
furnace
gas
wall
blast furnace
temp
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.)
Withdrawn
Application number
FR7723011A
Other languages
French (fr)
Inventor
Michel Schneider
Claude Staib
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7723011A priority Critical patent/FR2398803A1/en
Publication of FR2398803A1 publication Critical patent/FR2398803A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0005—Cooling of furnaces the cooling medium being a gas
    • F27D2009/0008—Ways to inject gases against surfaces

Landscapes

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

Abstract

The cooling elements or means in a steel making blast furnace are subjected to severe wear during use. To improve this at least one annular gaseous current is injected within the furnace in the immediate vicinity of the furnace wall and at the same level as the elements. The gas is at a relatively low temp. and is non-oxidising relative to the metallic charge constituents. The gas is injected through the wall of the furnace at a temp. =500 degrees C. Pref. the gas temp. is about 400 degrees C and the gas is pref. a blast furnace recuperation gas. An injector device can be provided and comprises at least one circular manifold surrounding the furnace, the manifold having radially directed pipes spaced regularly from each other each pipe traversing the wall of the furnace and terminating parallel to the internal surface of the wall.
FR7723011A 1977-07-25 1977-07-25 Annular gas jet injected into blast furnace - to protect the cooling elements Withdrawn FR2398803A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7723011A FR2398803A1 (en) 1977-07-25 1977-07-25 Annular gas jet injected into blast furnace - to protect the cooling elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7723011A FR2398803A1 (en) 1977-07-25 1977-07-25 Annular gas jet injected into blast furnace - to protect the cooling elements

Publications (1)

Publication Number Publication Date
FR2398803A1 true FR2398803A1 (en) 1979-02-23

Family

ID=9193853

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723011A Withdrawn FR2398803A1 (en) 1977-07-25 1977-07-25 Annular gas jet injected into blast furnace - to protect the cooling elements

Country Status (1)

Country Link
FR (1) FR2398803A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse