WO2002008665A1 - Bruleur pour produire des temperatures de processus elevees par combustion d'un combustible fluide ou fluidise avec un gaz renfermant de l'oxygene - Google Patents

Bruleur pour produire des temperatures de processus elevees par combustion d'un combustible fluide ou fluidise avec un gaz renfermant de l'oxygene Download PDF

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Publication number
WO2002008665A1
WO2002008665A1 PCT/CH2001/000435 CH0100435W WO0208665A1 WO 2002008665 A1 WO2002008665 A1 WO 2002008665A1 CH 0100435 W CH0100435 W CH 0100435W WO 0208665 A1 WO0208665 A1 WO 0208665A1
Authority
WO
WIPO (PCT)
Prior art keywords
burner
nozzle
cooling jacket
oxygen
fuel
Prior art date
Application number
PCT/CH2001/000435
Other languages
German (de)
English (en)
Inventor
Markus Adamus
Gustav Mauer
Original Assignee
Von Roll Umwelttechnik Ag
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 Von Roll Umwelttechnik Ag filed Critical Von Roll Umwelttechnik Ag
Priority to JP2002514316A priority Critical patent/JP3864141B2/ja
Publication of WO2002008665A1 publication Critical patent/WO2002008665A1/fr

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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
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/78—Cooling burner parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/30—Technologies for a more efficient combustion or heat usage

Definitions

  • the invention relates to a burner for generating high process temperatures by burning a fluid or fluidized fuel with an oxygen-containing gas according to the preamble of claim 1.
  • a burner of this type is known for example from EP-Bl-0 332 644.
  • a housing of this burner houses a nozzle head which has a central oxygen nozzle and a plurality of peripheral oxygen nozzles for the oxygen-containing gas which are arranged at a radial distance therefrom.
  • a number of fuel nozzles connected to a fuel line are arranged at a smaller radial distance from the central oxygen nozzle. All nozzles are parallel to one another and to the longitudinal axis of the burner, and the outlet openings of all nozzles are in a plane perpendicular to the longitudinal axis of the burner. Thus, the direction of the flame of the fuel flame generated by the oxygen at the outlet of the fuel nozzles is also aligned in the longitudinal direction of the burner.
  • the burner flame must be deflected at a certain angle to the longitudinal or installation axis of the burner.
  • the front area of the torch provided with the nozzle head - similar to welding torches - is angled relative to the part intended for installation become.
  • disassembly is usually not possible.
  • the present invention has for its object to provide a burner of the type mentioned, which allows a deflection of the burner flame and yet is simple and inexpensive in construction, assembly and maintenance.
  • this object is achieved by a burner with the features of claim 1.
  • FIG. 1 shows a longitudinal section of a front part of a burner with a built-in nozzle head
  • Fig. 2 in longitudinal section a rear part of the burner according to Fig. 1;
  • FIG. 3 shows a nozzle head body in longitudinal section
  • Fig. 4 seen the nozzle head body of FIG. 2 in the direction of arrow P.
  • a burner 1 comprises a lance-shaped burner insert 2 and an over a cooling jacket 3 extending part of the length of the burner insert.
  • the burner insert 2 can be inserted into the cooling jacket 3 from behind and can be connected to the latter in the manner described below.
  • the longitudinal axis of the burner 1 is designated L.
  • the cooling jacket 3 has an inner wall 4 and an outer wall 5, between which an annular cavity 6 is present.
  • the inner wall 4 is connected to the outer wall 5 via a front wall 7, so that " the cavity 6 is closed to the front.
  • the cooling jacket 3 is composed of a plurality of pipe pieces which are axially connected and preferably welded together, whereby First of all, there is a double-walled connecting piece 8 which has the front wall 7.
  • An intermediate tube 10 projects into the cavity 6 from behind and divides the cavity 6 into two radially separate flow zones 11, 12.
  • the flow zones 11, 12 are connected to one another via a gap present between the front intermediate pipe end and the front wall 7.
  • a helical spacer 9 is provided, which is designed, for example, as a copper wire wound around the intermediate tube 10.
  • the intermediate tube 10 is inserted in an end recess 14 of a sleeve-shaped end piece 13, which is fastened to the inner wall 4 of the cooling jacket 3, for example by welding, and the cavity 6, ie both the inner one Flow zone 12 as well as the outer flow zone 11, closed from behind (ie the outer wall 5 is also connected to the end piece 13 at the end).
  • a cooling liquid introduced into the outer flow zone 11 in the direction of arrow E via an inlet 16 and a radial inlet opening 17 in the outer wall 5 in the rear region of the cooling jacket 3 flows in the longitudinal direction of the burner, the flow taking place through a helical channel formed by the spacer 9 and ensures a good mixing and swirling of the coolant and thus provides an increased cooling effect.
  • the burner insert 2 comprises a lance-shaped tube 23 projecting from behind into the central interior 24 of the cooling jacket 3, which according to FIG. 1 in the front area of the burner 1 via an annular spacer 27 sealingly abutting the inner wall 4 of the cooling jacket 3 radial distance from the inner wall 4 is kept.
  • the lance-shaped tube 23 encloses one of a via a inlet opening 33 and an inlet 34 (Fig. 2) to a source, not shown Interior space 32 connected to oxygen-containing gas.
  • the interior 32 is closed off from behind by an end piece 43.
  • a nozzle head 20 is fastened (preferably by welding), which is designed as a cylindrical body shown in FIG. 3, the longitudinal axis of which coincides with the longitudinal axis L of the burner 1, and the one with two parallel end faces 21, 22 including an angle ⁇ with the longitudinal axis L is provided.
  • the nozzle head 20 has a bore 36 parallel to the longitudinal axis L, in which a fuel nozzle 25 is inserted in a sealing manner.
  • the fuel nozzle 25 has a threaded rear end piece 26 with which it can be screwed into a fuel line 29 or into a counterpart 28 connected to this fuel line 29.
  • a sealing ring 31 is arranged on the end face between a pin 30 of the fuel nozzle 25 and the counterpart 28.
  • the fuel line 29, which extends in the longitudinal direction of the burner 1 and extends through the interior 32 of the tube 23, is connected to a fuel source (not shown in more detail).
  • the nozzle head 20 also has at least one oxygen nozzle 35, the tube 23 optionally forming the supply line for the oxygen-containing gas to the oxygen nozzle 35.
  • the nozzle head 20 can be provided, for example, with three oxygen nozzles 35 arranged parallel to one another. If appropriate, the oxygen nozzles 35 have one constant diameter. However, they could also have a continuously tapering cross-section or the shape of a Laval nozzle. Instead of the three oxygen nozzles 35 running alongside one another, a single oxygen nozzle with a slit-shaped, arc-shaped cross section could also be provided.
  • the oxygen nozzles 35 and the fuel nozzle 25 are arranged at an angle ⁇ to one another.
  • the oxygen nozzles 35 run at right angles to the end faces 21, 22 of the nozzle body 20, and the angle ⁇ is the same size as the angle ⁇ , namely 45 °.
  • the nozzle exit directions of the fuel nozzle 25 and the oxygen nozzle 35 enclosing the angle ⁇ are designated B and S in FIG. 1.
  • the front wall 7 of the cooling jacket 3, the front end face 38 of the lance-shaped tube 23, the front end face 39 of the intermediate tube 10, and the end faces 40 of the annular spacer 27 also run parallel to the end faces 21, 22 of the nozzle body 20 20 with its end face 21 provided with the nozzle outlet openings is set back somewhat in the longitudinal direction of the burner 1 relative to the end faces 37, 39 of the cooling jacket or the intermediate tube 10, so that optimal cooling of the nozzle head 20 is ensured.
  • the inner wall 4 of the cooling jacket 3 which extends further backwards in comparison to the outer wall 5, is connected (preferably by means of welding) against which an annular counter flange 47, preferably welded on the lance-shaped tube 23, comes to rest.
  • Both flanges 46, 47 are provided with a number of mutually opposite holes 48 for fastening screws, not shown in the drawing.
  • Air, oxygen-enriched air or pure oxygen can be used as the oxygen-containing gas.
  • Pure oxygen is preferably used to generate a particularly high flame temperature (with a small amount of exhaust gas).
  • the oxygen nozzles 35 according to the invention at an angle ⁇ which can vary between 10 ° and 75 ° and is preferably 45 °, the flame generated at the outlet of the nozzles 25, 35 is directed in the direction of the oxygen jet, i.e. deflected in the nozzle exit direction S.
  • the necessary atomization of the fuel is achieved by an expansion of the oxygen jet at the outlet of the oxygen nozzle 35 and the fuel injection at this point.
  • the deflection of the flame according to the invention in a certain direction with respect to the longitudinal direction of the burner is particularly advantageous in the case of so-called pulse burners with which the mass to be burned is set in motion.
  • lance-shaped burners are installed in a furnace wall of a melting furnace, in which a molten bath or a slag bath is set in rotation by a tangential injection.
  • the CO-containing exhaust gases above the bath can also be re-burned using pulse burners built into the furnace wall.
  • the entire burner insert 2 can be disassembled and serviced or replaced in a simple manner - without dismantling the cooling jacket 3.
  • the fuel nozzle 25 itself can also be easily replaced or serviced.
  • the necessary deflection angle i.e. the angle ⁇
  • the burner 1 or its longitudinal axis L can also be pivoted in a certain angular range with respect to the furnace wall 49 and by means of a joint bearing 50 of the burner 1 or of the cooling jacket 3 receiving the burner insert 2 in a furnace wall 49 Adjustment device 51 can be fixed in the desired position, whereby the flame direction can also be adjusted.
  • the cooling jacket 3 is provided on its outer circumference with a spherical bearing body 52 forming part of the articulated bearing 50, which is operatively connected to a hollow spherical socket 54 fixed to the furnace wall.
  • the adjusting device 51 comprises a flange 53 arranged on the circumference of the cooling jacket 3, connected to the bearing body 52 and equipped with adjusting screws 55.
  • the adjusting screws 55 that can be supported on the furnace wall 49, the angle setting of the flange 53 or the cooling jacket 3 can be fixed relative to the furnace wall ,

Abstract

L'invention concerne un brûleur pour produire des températures de processus élevées par combustion d'un combustible fluide ou fluidisé avec un gaz renfermant de l'oxygène. Ce brûleur présente une tête de buse (20) pourvue d'une buse à combustible (25), raccordée à une conduite de combustible (29), et d'une buse à oxygène (35) raccordée à une conduite d'alimentation (23) pour le gaz renfermant de l'oxygène. La conduite de combustible (29) et la conduite d'alimentation en gaz (23) s'étendent dans le sens longitudinal du brûleur (1) et sont entourées, sur une partie de leur longueur, par une gaine de refroidissement (3). Les directions de sortie (S, B) de la buse à oxygène (35) et de la buse à combustible (25) forment un angle ( beta ), ce qui a pour effet de dévier la flamme produite de sorte qu'elle traverse le jet d'oxygène. Ce brûleur (1) permet de dévier la flamme par rapport à l'axe longitudinal/de montage (L) tout en présentant une simplicité à la fois de conception, de montage et de maintenance.
PCT/CH2001/000435 2000-07-20 2001-07-11 Bruleur pour produire des temperatures de processus elevees par combustion d'un combustible fluide ou fluidise avec un gaz renfermant de l'oxygene WO2002008665A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002514316A JP3864141B2 (ja) 2000-07-20 2001-07-11 酸素含有ガスを用いて流体燃料又は流動化した燃料を燃焼することによって高温度処理を行うためのバーナー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01434/00A CH694405A5 (de) 2000-07-20 2000-07-20 Brenner zur Erzeugung von hohen Prozesstemperaturen durch Verbrennung eines fluiden oder fluidisierten Brennstoffes mit einem sauerstoffhaltigen Gas.
CH1434/00 2000-07-20

Publications (1)

Publication Number Publication Date
WO2002008665A1 true WO2002008665A1 (fr) 2002-01-31

Family

ID=4565472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2001/000435 WO2002008665A1 (fr) 2000-07-20 2001-07-11 Bruleur pour produire des temperatures de processus elevees par combustion d'un combustible fluide ou fluidise avec un gaz renfermant de l'oxygene

Country Status (3)

Country Link
JP (1) JP3864141B2 (fr)
CH (1) CH694405A5 (fr)
WO (1) WO2002008665A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2333413A1 (fr) * 2008-10-08 2011-06-15 Mitsubishi Heavy Industries, Ltd. Appareil bruleur de fusion de laitier

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693875A (en) * 1971-11-29 1972-09-26 Thomas L Shepard Rocket burner with flame pattern control
US3951643A (en) * 1973-02-26 1976-04-20 Pennsylvania Engineering Corporation Steel production method
US5511725A (en) * 1991-09-27 1996-04-30 Abb Carbon Ab Method and nozzle for supplying paste fuel to a fluidized bed
EP0737754A2 (fr) * 1995-04-14 1996-10-16 ELTI S.r.l. Lance pour l'insufflation de substances fluides dans les fours, en particulier dans les fours pour la fabrication d'acier
US5635130A (en) * 1995-06-07 1997-06-03 Berry Metal Co. Combined oxygen blowing/fuel burner lance assembly
EP0844433A2 (fr) * 1996-11-25 1998-05-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et dispositif de combustion avec injection séparée du combustible et du comburant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455438B (sv) 1986-11-24 1988-07-11 Aga Ab Sett att senka en brennares flamtemperatur samt brennare med munstycken for oxygen resp brensle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693875A (en) * 1971-11-29 1972-09-26 Thomas L Shepard Rocket burner with flame pattern control
US3951643A (en) * 1973-02-26 1976-04-20 Pennsylvania Engineering Corporation Steel production method
US5511725A (en) * 1991-09-27 1996-04-30 Abb Carbon Ab Method and nozzle for supplying paste fuel to a fluidized bed
EP0737754A2 (fr) * 1995-04-14 1996-10-16 ELTI S.r.l. Lance pour l'insufflation de substances fluides dans les fours, en particulier dans les fours pour la fabrication d'acier
US5635130A (en) * 1995-06-07 1997-06-03 Berry Metal Co. Combined oxygen blowing/fuel burner lance assembly
EP0844433A2 (fr) * 1996-11-25 1998-05-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et dispositif de combustion avec injection séparée du combustible et du comburant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2333413A1 (fr) * 2008-10-08 2011-06-15 Mitsubishi Heavy Industries, Ltd. Appareil bruleur de fusion de laitier
EP2333413A4 (fr) * 2008-10-08 2014-08-27 Mitsubishi Heavy Ind Ltd Appareil bruleur de fusion de laitier
AU2009301682B2 (en) * 2008-10-08 2014-12-04 Central Research Institute Of Electric Power Industry Slag melting burner apparatus
US8997665B2 (en) 2008-10-08 2015-04-07 Mitsubishi Hitachi Power Systems, Ltd. Slag-melting burner apparatus

Also Published As

Publication number Publication date
JP3864141B2 (ja) 2006-12-27
CH694405A5 (de) 2004-12-31
JP2004504583A (ja) 2004-02-12

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