EP0201441B1 - Vorrichtung zum Einspritzen von pulvrigem Material in einen Ofen, insbesondere einen Hochofen und Verwendung dafür - Google Patents

Vorrichtung zum Einspritzen von pulvrigem Material in einen Ofen, insbesondere einen Hochofen und Verwendung dafür Download PDF

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Publication number
EP0201441B1
EP0201441B1 EP86440033A EP86440033A EP0201441B1 EP 0201441 B1 EP0201441 B1 EP 0201441B1 EP 86440033 A EP86440033 A EP 86440033A EP 86440033 A EP86440033 A EP 86440033A EP 0201441 B1 EP0201441 B1 EP 0201441B1
Authority
EP
European Patent Office
Prior art keywords
materials
nozzle
blast pipe
furnace
blast
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.)
Expired
Application number
EP86440033A
Other languages
English (en)
French (fr)
Other versions
EP0201441A1 (de
Inventor
Yann De Lassat De Pressigny
Michel Schneider
Hugues Zanetta
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 AT86440033T priority Critical patent/ATE40411T1/de
Publication of EP0201441A1 publication Critical patent/EP0201441A1/de
Application granted granted Critical
Publication of EP0201441B1 publication Critical patent/EP0201441B1/de
Expired legal-status Critical Current

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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
    • C21B5/002—Heated electrically (plasma)
    • 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
    • C21B5/003—Injection of pulverulent coal

Definitions

  • these injections are cooling additions, the effect of which must be compensated by a supply of heat advantageously provided by electric arc plasma torches.
  • the layer automatically finds an equilibrium thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)
  • Forging (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Glanulating (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Claims (6)

1. Vorrichtung zum Einspritzen von feinem pulvrigem Material in einen Ofen, insbesondere in einen Hochofen, mit einer Düse (4, 6), die im Hochofen mündet und mit wenigstens einer Einspritzöffnung (10) für das Material und einem Plasmabrenner (8), dadurch gekennzeichnet, daß die Düse einen vorderen, im wesentlichen zylindrischen oder konvergenten leicht kegelstumpfförmigen Abschnitt (4) aufweist und einen hinteren, divergenten kegelstumpfförmigen Abschnitt (6), daß der Brenner koaxial zur Düse (4, 6) am Einlaß des hinteren Abschnitts der Düse vorgesehen ist und daß die Einspritzöffnung (10) für das Material schräg im hinteren Abschnitt (6) der Düse mündet und daß der Steigungswinkel des hinteren Abschnitts (6) der Düse im wesentlichen dem natürlichen Ausbreitungswinkel des Plasmastrahls entspricht, derart, daß das Material vom Plasmastrahl mitgerissen wird und daß ein Teil des Materials auf die Innenwand der Düse gespritzt wird.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Innenwand der Düse (4, 6) derart ausgebildet ist, daß sie das Haften des gespritzten Materials erleichtert.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Auslaßöffnung der Einspritzöffnung (10) für das Material in der Nähe der Oberfläche des hinteren Abschnitts (6) angeordnet ist.
4. Anwendung der Vorrichtung nach Anspruch 1 auf einen Eisenhütten-Hochofen, dadurch gekennzeichnet, daß das eingespritzte feste Material Eisenerz ist.
5. Anwendung nach Anspruch 4, dadurch gekennzeichnet, daß das Eisenerz in Form von wässrigem Brei vorliegt.
6. Anwendung der Vorrichtung nach Anspruch 1 auf einen Verbrennungsofen, dadurch gekennzeichnet, daß das eingespritzte feste Material Kohle ist.
EP86440033A 1985-05-06 1986-05-02 Vorrichtung zum Einspritzen von pulvrigem Material in einen Ofen, insbesondere einen Hochofen und Verwendung dafür Expired EP0201441B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86440033T ATE40411T1 (de) 1985-05-06 1986-05-02 Vorrichtung zum einspritzen von pulvrigem material in einen ofen, insbesondere einen hochofen und verwendung dafuer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8506849 1985-05-06
FR8506849A FR2581395B1 (fr) 1985-05-06 1985-05-06 Dispositif d'injection de matieres solides divisees dans un four, notamment un haut fourneau siderurgique, et applications

Publications (2)

Publication Number Publication Date
EP0201441A1 EP0201441A1 (de) 1986-12-17
EP0201441B1 true EP0201441B1 (de) 1989-01-25

Family

ID=9318984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86440033A Expired EP0201441B1 (de) 1985-05-06 1986-05-02 Vorrichtung zum Einspritzen von pulvrigem Material in einen Ofen, insbesondere einen Hochofen und Verwendung dafür

Country Status (12)

Country Link
US (1) US4771993A (de)
EP (1) EP0201441B1 (de)
CN (1) CN1004705B (de)
AT (1) ATE40411T1 (de)
AU (1) AU582234B2 (de)
BR (1) BR8602006A (de)
CA (1) CA1283297C (de)
DE (1) DE3661934D1 (de)
ES (1) ES8705044A1 (de)
FR (1) FR2581395B1 (de)
SU (1) SU1473715A3 (de)
ZA (1) ZA863342B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4844737A (en) * 1986-12-27 1989-07-04 Nippon Kokan Kabushiki Kaisha Method for operating a blast furnance by blowing pulverized coal
JPS63171818A (ja) * 1987-01-09 1988-07-15 Nkk Corp 酸素高炉の羽口
US5227117A (en) * 1992-05-29 1993-07-13 Usx Corporation Apparatus for blast furnace fuel injection
CA2073707C (en) * 1992-07-13 1998-04-21 Raymond Lemay Pneumatic injection of powder or granule through submerged tuyeres
DE102006029725B4 (de) * 2006-06-28 2008-08-28 Siemens Ag Verfahren und Vorrichtung zum Einbringen von Stäuben in eine Metallschmelze einer pyrometallurgischen Anlage
US9574770B2 (en) 2012-04-17 2017-02-21 Alter Nrg Corp. Start-up torch

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU39431A1 (de) * 1959-12-24 1961-01-18
US3827851A (en) * 1972-10-03 1974-08-06 Peabody Gordon Piatt Combination, oil, gas, and/or solid burner
SU423846A1 (ru) * 1973-01-08 1974-04-15 И. И. Кобеза Институт черной металлургии Воздухопровод горячего дутья доменной печи с встроенной камерой горения в прямом участке
US4072502A (en) * 1973-03-26 1978-02-07 Skf Industrial Trading And Development Co. B.V. Method apparatus for increasing blast gas temperature in a shaft furnace
US3892882A (en) * 1973-05-25 1975-07-01 Union Carbide Corp Process for plasma flame spray coating in a sub-atmospheric pressure environment
US4002466A (en) * 1975-11-03 1977-01-11 Bethlehem Steel Corporation Method of reducing ores
GB2085575A (en) * 1980-08-22 1982-04-28 Hamworthy Engineering Multi-fuel Burner
US4422624A (en) * 1981-08-27 1983-12-27 Phelps Dodge Corporation Concentrate burner
SE450898B (sv) * 1981-09-03 1987-08-10 Skf Steel Eng Ab Sett vid anvendning av en plasmagenerator for tillforsel av vermeenergi, samt anordning for genomforande av settet
US4490171A (en) * 1982-03-31 1984-12-25 Kobe Steel, Limited Method and apparatus for injecting pulverized fuel into a blast furnace
SE8400738L (sv) * 1984-02-13 1985-08-14 Petrokraft Ing Ab Brennare for forbrenning av pulverformigt brensle

Also Published As

Publication number Publication date
CN1004705B (zh) 1989-07-05
CN86103851A (zh) 1986-12-31
FR2581395B1 (fr) 1992-09-18
ES8705044A1 (es) 1987-04-16
CA1283297C (fr) 1991-04-23
AU582234B2 (en) 1989-03-16
AU5704186A (en) 1986-11-13
ATE40411T1 (de) 1989-02-15
FR2581395A1 (fr) 1986-11-07
EP0201441A1 (de) 1986-12-17
ZA863342B (en) 1987-01-28
SU1473715A3 (ru) 1989-04-15
BR8602006A (pt) 1987-01-06
ES554651A0 (es) 1987-04-16
US4771993A (en) 1988-09-20
DE3661934D1 (en) 1989-03-02

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