FR2741702B1 - GAS BURNER FOR OVEN FOR HEATING STEEL PRODUCTS - Google Patents

GAS BURNER FOR OVEN FOR HEATING STEEL PRODUCTS

Info

Publication number
FR2741702B1
FR2741702B1 FR9513905A FR9513905A FR2741702B1 FR 2741702 B1 FR2741702 B1 FR 2741702B1 FR 9513905 A FR9513905 A FR 9513905A FR 9513905 A FR9513905 A FR 9513905A FR 2741702 B1 FR2741702 B1 FR 2741702B1
Authority
FR
France
Prior art keywords
orifices
nozzle
gas
rings
oven
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 - Fee Related
Application number
FR9513905A
Other languages
French (fr)
Other versions
FR2741702A1 (en
Inventor
Alain Usai
Serge Silvestrini
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Priority to FR9513905A priority Critical patent/FR2741702B1/en
Priority to DE69604366T priority patent/DE69604366T2/en
Priority to ES96402273T priority patent/ES2136955T3/en
Priority to EP96402273A priority patent/EP0775868B1/en
Priority to AT96402273T priority patent/ATE184978T1/en
Publication of FR2741702A1 publication Critical patent/FR2741702A1/en
Application granted granted Critical
Publication of FR2741702B1 publication Critical patent/FR2741702B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F23M5/025—Casings; Linings; Walls characterised by the shape of the bricks or blocks used specially adapted for burner openings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Furnace Details (AREA)

Abstract

The burner consists of a central gas feed channel, surrounded by a concentric air feed channel. A nozzle (7) has its front surface facing towards the interior of a furnace. The nozzle has two sets of orifices (10) in concentric rings of different diameters (D1,D2), one for gas and one for air. Both orifices are linked to the respective feed channels. The gas feed orifices lie concentrically with the axis (X) of the nozzle. The air feed orifices are in a spiral line to create a swirling flow and create a depression which draws the gas through the nozzle. The diameters of the two rings of orifices are in a ratio of 0.45-0.5 : 1. The face of the nozzle has a recessed section (14) which contains the two rings of orifices and is connected to its main front face (13) by a conical surface (15) at an angle of 20-40 deg., preferably 30 deg.
FR9513905A 1995-11-23 1995-11-23 GAS BURNER FOR OVEN FOR HEATING STEEL PRODUCTS Expired - Fee Related FR2741702B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9513905A FR2741702B1 (en) 1995-11-23 1995-11-23 GAS BURNER FOR OVEN FOR HEATING STEEL PRODUCTS
DE69604366T DE69604366T2 (en) 1995-11-23 1996-10-25 Gas burners for reheating furnaces for siderurgical products
ES96402273T ES2136955T3 (en) 1995-11-23 1996-10-25 GAS BURNER FOR OVEN REHEATING OF STEEL PRODUCTS.
EP96402273A EP0775868B1 (en) 1995-11-23 1996-10-25 Gas burner for a furnace for reheating steel industry products
AT96402273T ATE184978T1 (en) 1995-11-23 1996-10-25 GAS BURNERS FOR HEATING OVENS FOR SIDERURGIC PRODUCTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9513905A FR2741702B1 (en) 1995-11-23 1995-11-23 GAS BURNER FOR OVEN FOR HEATING STEEL PRODUCTS

Publications (2)

Publication Number Publication Date
FR2741702A1 FR2741702A1 (en) 1997-05-30
FR2741702B1 true FR2741702B1 (en) 1997-12-26

Family

ID=9484838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9513905A Expired - Fee Related FR2741702B1 (en) 1995-11-23 1995-11-23 GAS BURNER FOR OVEN FOR HEATING STEEL PRODUCTS

Country Status (5)

Country Link
EP (1) EP0775868B1 (en)
AT (1) ATE184978T1 (en)
DE (1) DE69604366T2 (en)
ES (1) ES2136955T3 (en)
FR (1) FR2741702B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316161A (en) * 1996-08-05 1998-02-18 Boc Group Plc Oxygen-fuel swirl burner
ES2159217B1 (en) * 1998-05-14 2002-04-01 Adiego Tomas Adiego DEVICE TO AVOID THERMAL LOSSES OF THE CROWN OF FLAMES OF A BURNER.
ITMI20020611A1 (en) * 2002-03-22 2003-09-22 Danieli Off Mecc BURNER
US7549858B2 (en) * 2006-12-04 2009-06-23 Praxair Technology, Inc. Combustion with variable oxidant low NOx burner
FR2914986B1 (en) * 2007-04-12 2015-04-10 Saint Gobain Isover INTERNAL COMBUSTION BURNER
DE102008011567B4 (en) * 2008-02-28 2010-01-28 Corall, Paul, Dipl.-Ing. Testing device for checking the functionality of smoke extraction systems
US10197269B2 (en) * 2015-07-31 2019-02-05 Nuvera Fuel Cells, LLC Burner assembly with low NOx emissions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193464A5 (en) * 1972-07-21 1974-02-15 Airco Inc
FR2532405A1 (en) * 1982-08-25 1984-03-02 Air Liquide METHOD AND DEVICE FOR ELECTRICALLY IGNITING AN OXYCOMBUSTIBLE BURNER
FR2671605A1 (en) * 1991-01-16 1992-07-17 Lorraine Laminage AIR AND COMBUSTION GAS MIXER FOR GAS BURNER OF INDUSTRIAL FURNACES.
FR2717884B1 (en) * 1994-03-24 1996-06-07 Lorraine Laminage Gas burner for industrial ovens.

Also Published As

Publication number Publication date
FR2741702A1 (en) 1997-05-30
ES2136955T3 (en) 1999-12-01
EP0775868A1 (en) 1997-05-28
DE69604366D1 (en) 1999-10-28
EP0775868B1 (en) 1999-09-22
ATE184978T1 (en) 1999-10-15
DE69604366T2 (en) 2000-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse