US3558119A - Device for the injection of liquid fuels into blast furnaces - Google Patents

Device for the injection of liquid fuels into blast furnaces Download PDF

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Publication number
US3558119A
US3558119A US781715A US3558119DA US3558119A US 3558119 A US3558119 A US 3558119A US 781715 A US781715 A US 781715A US 3558119D A US3558119D A US 3558119DA US 3558119 A US3558119 A US 3558119A
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US
United States
Prior art keywords
nozzle
tuyere
wind
nose
refractory
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 - Lifetime
Application number
US781715A
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English (en)
Inventor
Roger Demalander
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.)
Pont a Mousson SA
Centre de Recherches de Pont a Mousson
Original Assignee
Pont a Mousson SA
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 Pont a Mousson SA filed Critical Pont a Mousson SA
Application granted granted Critical
Publication of US3558119A publication Critical patent/US3558119A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel

Definitions

  • the object of the invention is to provide a device for injecting liquid fuel at a high rate into a shaft furnace inside a conduit formed by the assembly in end-to-end of relation anair blowing nozzle and a tuyere, this device transforming the nozzle tuyere assembly into a high intensity combustion chamber which is adapted both to the requirements of the shaft furnace and to the very high temperatures of the combustion with air at more than 800 C.
  • Good performance of the blast furnace requires: a complete combustion without soot of the injected liquid fuel which must be completely burnt within the tuyeres, a high flow of the wind or of the wind to which is added fuel fumes so as to ensure the distribution of the wind fumes mixture throughout the section. of the shaft.
  • This flow is usually 40 Nm/s. (40 normal rn. per second, that is, 40 m. of gas measured at 0 C. at a pressure of 760 mm. of mercury). This flow is therefore 93 m. per second at 1000" C. under a pressure of 2 absolute bars, or even slightly more.
  • this embodiment comprises a nozzle 1" in an even more accentuated bulb shape, that is, a shape which is wider and shorter than the bulb shape of the nozzle 1.
  • a connection 4" Adapted to the rear face of this nozzle, which is protected by the refractory lining 2, is a connection 4" performing the same function as the flange 4 but having a substantially greater diameter.
  • This connection is hollow and water cooled.
  • a refractory ring 5'' consisting of internally profiled or shaped elements having a divergent trumpet inner shape and connected to the refractory lining 2 of the tuyere.
  • Oblique slots 7 are provided on the ring. They communicate with the interior of the tuyere close to its refractory lining 2. Lateral cold air supply conduits 3 lead to the slots. In this way, cold air is injected into the zone of impact of the flow on the lining 2 of the tuyere.
  • liquid fuel supply conduit is oblique relative to said nozzle and said injector has an outlet at the upstream end of said neck of said Venturi structure.
  • a device as claimed in claim 8 wherein said fuel supply conduit is bent at an angle which is highly inclined relative to the axis of said tuyere, and said injector is centered by said bladed diaphragm and has an outlet in the region of said neck of said Venturi structure.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Blast Furnaces (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
US781715A 1967-12-08 1968-12-04 Device for the injection of liquid fuels into blast furnaces Expired - Lifetime US3558119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR131478 1967-12-08

Publications (1)

Publication Number Publication Date
US3558119A true US3558119A (en) 1971-01-26

Family

ID=8642936

Family Applications (1)

Application Number Title Priority Date Filing Date
US781715A Expired - Lifetime US3558119A (en) 1967-12-08 1968-12-04 Device for the injection of liquid fuels into blast furnaces

Country Status (9)

Country Link
US (1) US3558119A (de)
BE (1) BE722464A (de)
CH (1) CH506023A (de)
DE (1) DE1813217A1 (de)
ES (1) ES360485A1 (de)
FR (1) FR1559679A (de)
GB (1) GB1205098A (de)
LU (1) LU57434A1 (de)
NL (1) NL6817509A (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758090A (en) * 1971-03-26 1973-09-11 Nippon Kokan Kk Combustion apparatus for blast furnaces
US3771473A (en) * 1971-01-20 1973-11-13 Siderurgie Fse Inst Rech Tuyere for a blast furnace and a method for operating the tuyere to atomize combustible material fed into the tuyere by a shock wave
US3793002A (en) * 1971-10-14 1974-02-19 Siderurgie Fse Inst Rech Method of introducing a combustible auxiliary liquid into blast furnace and a tuyere for carrying out the method
US3809524A (en) * 1971-07-08 1974-05-07 Raffinage Cie Francaise Injection of liquid fuels into shaft furnaces
US3831918A (en) * 1972-06-13 1974-08-27 Asahi Glass Co Ltd Heat insulating durable tuyere
US3844767A (en) * 1972-02-12 1974-10-29 P Rheinlander Method of operating a blast furnace
US3917243A (en) * 1973-01-18 1975-11-04 Siderurgie Fse Inst Rech Supersonic shock wave tuyere
US3980286A (en) * 1973-07-30 1976-09-14 S.A. Des Anciens Etablissements Paul Wurth Tuyere feed lines
US4027605A (en) * 1972-03-06 1977-06-07 S.A. Des Anciens Etablissements Paul Wurth Improved tuyere feed device
US4232854A (en) * 1978-05-26 1980-11-11 Barbakadze Dzhondo F Method of introducing powdered reagents into molten metals and apparatus for effecting same
US4239194A (en) * 1978-06-23 1980-12-16 Hainaut-Sambre Societe Anonyme Tuyere for the bottom of a steelworks converter
US4266968A (en) * 1979-03-29 1981-05-12 Rheinische Braunkohlenwerke A.G. Process for injecting brown coal into a blast furnace
US4303230A (en) * 1978-11-28 1981-12-01 William Bleloch Apparatus for the production of steel and iron alloys
US4308056A (en) * 1979-04-27 1981-12-29 Italsider S.P.A. Method and apparatus for introducing solid substances into liquid metals
US4490171A (en) * 1982-03-31 1984-12-25 Kobe Steel, Limited Method and apparatus for injecting pulverized fuel into a blast furnace
US4512800A (en) * 1983-08-12 1985-04-23 Pfizer Inc. Wire injection apparatus
US4572487A (en) * 1984-05-10 1986-02-25 Inland Steel Company Blast furnace tuyere with replaceable liner
US4700930A (en) * 1985-04-15 1987-10-20 Institut de Recherches de la Sidergie Francaise Irsid Device for injecting pulverulent material, such as coal, in a blast furnace
EP0554673A2 (de) * 1992-02-05 1993-08-11 Paul Wurth S.A. Brenner für einen Schachtofen
US5839893A (en) * 1995-11-17 1998-11-24 Agrichema Materialflusstechnik Gmbh Hot burning nozzle with a change pipe
US20070184396A1 (en) * 2003-07-04 2007-08-09 Holcim Ltd. Method and system for process gas entrainment and mixing in a kiln system
US20080211148A1 (en) * 2007-01-16 2008-09-04 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2131868A1 (en) * 1971-03-31 1972-11-17 Nippon Kokan Kk Blast furnace combustion
US5436210A (en) * 1993-02-04 1995-07-25 Molten Metal Technology, Inc. Method and apparatus for injection of a liquid waste into a molten bath

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166621A (en) * 1961-03-16 1965-01-19 Colorado Fuel & Iron Corp Burner tuyere arrangement for a blast furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166621A (en) * 1961-03-16 1965-01-19 Colorado Fuel & Iron Corp Burner tuyere arrangement for a blast furnace

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771473A (en) * 1971-01-20 1973-11-13 Siderurgie Fse Inst Rech Tuyere for a blast furnace and a method for operating the tuyere to atomize combustible material fed into the tuyere by a shock wave
US3758090A (en) * 1971-03-26 1973-09-11 Nippon Kokan Kk Combustion apparatus for blast furnaces
US3809524A (en) * 1971-07-08 1974-05-07 Raffinage Cie Francaise Injection of liquid fuels into shaft furnaces
US3793002A (en) * 1971-10-14 1974-02-19 Siderurgie Fse Inst Rech Method of introducing a combustible auxiliary liquid into blast furnace and a tuyere for carrying out the method
US3844767A (en) * 1972-02-12 1974-10-29 P Rheinlander Method of operating a blast furnace
US4027605A (en) * 1972-03-06 1977-06-07 S.A. Des Anciens Etablissements Paul Wurth Improved tuyere feed device
US3831918A (en) * 1972-06-13 1974-08-27 Asahi Glass Co Ltd Heat insulating durable tuyere
US3917243A (en) * 1973-01-18 1975-11-04 Siderurgie Fse Inst Rech Supersonic shock wave tuyere
US3980286A (en) * 1973-07-30 1976-09-14 S.A. Des Anciens Etablissements Paul Wurth Tuyere feed lines
US4232854A (en) * 1978-05-26 1980-11-11 Barbakadze Dzhondo F Method of introducing powdered reagents into molten metals and apparatus for effecting same
US4239194A (en) * 1978-06-23 1980-12-16 Hainaut-Sambre Societe Anonyme Tuyere for the bottom of a steelworks converter
US4303230A (en) * 1978-11-28 1981-12-01 William Bleloch Apparatus for the production of steel and iron alloys
US4266968A (en) * 1979-03-29 1981-05-12 Rheinische Braunkohlenwerke A.G. Process for injecting brown coal into a blast furnace
US4308056A (en) * 1979-04-27 1981-12-29 Italsider S.P.A. Method and apparatus for introducing solid substances into liquid metals
US4490171A (en) * 1982-03-31 1984-12-25 Kobe Steel, Limited Method and apparatus for injecting pulverized fuel into a blast furnace
US4512800A (en) * 1983-08-12 1985-04-23 Pfizer Inc. Wire injection apparatus
US4572487A (en) * 1984-05-10 1986-02-25 Inland Steel Company Blast furnace tuyere with replaceable liner
US4700930A (en) * 1985-04-15 1987-10-20 Institut de Recherches de la Sidergie Francaise Irsid Device for injecting pulverulent material, such as coal, in a blast furnace
EP0554673A2 (de) * 1992-02-05 1993-08-11 Paul Wurth S.A. Brenner für einen Schachtofen
EP0554673A3 (de) * 1992-02-05 1994-03-09 Wurth Paul Sa
US5839893A (en) * 1995-11-17 1998-11-24 Agrichema Materialflusstechnik Gmbh Hot burning nozzle with a change pipe
US20070184396A1 (en) * 2003-07-04 2007-08-09 Holcim Ltd. Method and system for process gas entrainment and mixing in a kiln system
US20080211148A1 (en) * 2007-01-16 2008-09-04 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace
US7837928B2 (en) 2007-01-16 2010-11-23 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace

Also Published As

Publication number Publication date
BE722464A (de) 1969-04-01
ES360485A1 (es) 1970-07-16
CH506023A (fr) 1971-04-15
FR1559679A (de) 1969-03-14
LU57434A1 (de) 1969-03-11
GB1205098A (en) 1970-09-16
NL6817509A (de) 1969-06-10
DE1813217A1 (de) 1969-07-24

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