NO149710B - BURNER. - Google Patents
BURNER. Download PDFInfo
- Publication number
- NO149710B NO149710B NO800297A NO800297A NO149710B NO 149710 B NO149710 B NO 149710B NO 800297 A NO800297 A NO 800297A NO 800297 A NO800297 A NO 800297A NO 149710 B NO149710 B NO 149710B
- Authority
- NO
- Norway
- Prior art keywords
- air
- burner
- nozzles
- air tube
- tube
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 239000000446 fuel Substances 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 10
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 229910017464 nitrogen compound Inorganic materials 0.000 description 3
- 150000002830 nitrogen compounds Chemical class 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
- F23C7/004—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion using vanes
- F23C7/006—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion using vanes adjustable
-
- 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
- F23D17/007—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel liquid or pulverulent fuel
Description
Oppfinnelsen vedrører en brenner for forbrenning av nitrogenholdige brennstoffer, i samsvar med innledningen til patentkrav 1. The invention relates to a burner for burning nitrogen-containing fuels, in accordance with the introduction to patent claim 1.
En slik brenner er kjent, f.eks. fra VGB-Kraft-werkstechnik 57, hefte 10, oktober 1977, fig. 5, side 672. Such a burner is known, e.g. from VGB-Kraft-werkstechnik 57, booklet 10, October 1977, fig. 5, page 672.
De røykgassene som dannes der har en betydelig konsentrasjon av N0x. The flue gases that are formed there have a significant concentration of N0x.
Den reaksjonsmekanisme som ligger til grunn for dannelse av nitrogenoksyder i tekniske brennstoffer, The reaction mechanism underlying the formation of nitrogen oxides in technical fuels,
er velkjent. Man skiller idag stort sett mellom to ulike reaksjoner. - den termiske NOx~dannelse som skyldes oksydasjon av mole-kylært nitrogen. Denne forekommer f.eks. i stor utstrek-ning i forbrenningsluften. Da oksydasjonen av molekylart nitrogen krever atomært oksygen eller aggressive radikal-er (f.eks. OH, 0, o.s.v.)» er den i særlig høy grad avhengig av temperaturen; derav termisk N0x> - dannelsen av brennstoff NO^., hvilken skjer via oksydasjon av nitrogenforbindelsene som er bundet i brennstoffet. Under pyrolysen vil det på basis av disse nitrogenforbind-elser danne seg nitrogen-karbon- og nitrogen-hydrogen-radikaler (CH, HCN, CH o.s.v.), som på grunn av sin reak-sjonsevne med molekylart oksygen oksyderes allerede ved relativt lave temperaturer til NOx i nærvær av oksygen. is well known. Today, a distinction is generally made between two different reactions. - the thermal NOx~formation due to oxidation of molecular nitrogen. This occurs e.g. to a large extent in the combustion air. As the oxidation of molecular nitrogen requires atomic oxygen or aggressive radicals (e.g. OH, 0, etc.), it is particularly dependent on the temperature; hence thermal N0x> - the formation of fuel NO^., which occurs via oxidation of the nitrogen compounds bound in the fuel. During the pyrolysis, on the basis of these nitrogen compounds, nitrogen-carbon and nitrogen-hydrogen radicals (CH, HCN, CH etc.) will form, which, due to their reactivity with molecular oxygen, are already oxidized at relatively low temperatures to NOx in the presence of oxygen.
En minsking av den termiske NO -dannelse blir derfor i første rekke oppnådd ved å redusere forbren-ningstemperaturen og oppholdstidene ved høye temperaturer. Da imidlertid en stor del av den totale NOx-dannelse ved forbrenning av brennstoffer med bundet hydrogen finner sted via brennstoff-NO^-reaksjonen, er de forannevnte til-tak utilstrekkelige i forbindelse med denne slags brennstoffer for å oppnå de strålingsretningsverdier som gjeld-er for enkelte land. For å oppnå dette er det derimot nød-vendig å redusere nitrogenforbindelsene allerede under pyrolysen i fravær av oksygen til molekylart nitrogen (^3 • Undersøkelsen har vist at denne reduksjonsreaksjon til molekylart nitrogen eksempelvis finner sted når brennstof-fene forbrennes under understøkiometriske forhold, d.v.s. med mindre oksygen-, henholdsvis lufttilførsel enn fullstendig forbrenning krever. For å oppnå optimale resultat-er bør det for den primære forbrenningssone, avhengig av randbetingelsene (f.eks. brennrommets temperatur), velges et luftforhold på mellom 0,9 og 0,5. Riktignok må de reak-sjonsprodukter som dannes i det understøkiometriske primær-området, etterforbrennes for å oppnå en fullstendig avbrenning av hydrokarbonforbindelsene. A reduction in thermal NO formation is therefore primarily achieved by reducing the combustion temperature and residence times at high temperatures. However, since a large part of the total NOx formation during the combustion of fuels with bound hydrogen takes place via the fuel-NO^ reaction, the aforementioned measures are insufficient in connection with this type of fuel to achieve the applicable radiation direction values for certain countries. In order to achieve this, however, it is necessary to reduce the nitrogen compounds already during the pyrolysis in the absence of oxygen to molecular nitrogen (^3 • The investigation has shown that this reduction reaction to molecular nitrogen, for example, takes place when the fuels are burned under sub-stoichiometric conditions, i.e. with less oxygen or air supply than complete combustion requires. To achieve optimal results, an air ratio of between 0.9 and 0.5 should be chosen for the primary combustion zone, depending on the boundary conditions (e.g. the temperature of the combustion chamber). Admittedly, the reaction products which are formed in the sub-stoichiometric primary range must be post-combusted in order to achieve complete combustion of the hydrocarbon compounds.
Undersøkelser har vist at det med en slik totrinns forbrenning kan oppnås en anselig reduksjon av såvel brennstoff-NO^-dannelsen, ved samtidig uttrekk av var-me fra det understøkiometriske området, som den termiske NO -dannelsen. Ved forsøkene ble det ved å benytte totrinns forbrenning oppnådd å senke NO^-strålingsverdien omtrent til 701 i forhold til ikke-trinnvis forbrenning. Investigations have shown that with such a two-stage combustion, a considerable reduction of both the fuel-NO^ formation, by simultaneous extraction of heat from the sub-stoichiometric range, and the thermal NO formation can be achieved. In the experiments, by using two-stage combustion, it was achieved to lower the NO^ radiation value to approximately 701 in relation to non-stage combustion.
Forsøkene viste at dannelsen av brennstoff-NO^ kunne senkes merkbart ved drift av brenneren i nær-eller understøkiometrisk område. For å unngå tap ved ufull-stendig forbrenning og utstråling av andre skadelige stof-fer (CO, hydrokarboner og partikler), må det, når brenneren benyttes i understøkiometrisk drift, blåses tilleggs-luft inn i fyrrommet, ovenfor brenneren. Ulempen ved denne driftsmåte består i at det i den understøkiometriske drevne, nedre del av fyrrommet kan oppstå slaggdannelse og korrosjon på rørveggene. Derved utsettes anleggets drifts-sikkerhet for fare. The experiments showed that the formation of fuel NO^ could be noticeably reduced by operating the burner in the near- or sub-stoichiometric range. To avoid losses due to incomplete combustion and emission of other harmful substances (CO, hydrocarbons and particles), when the burner is used in sub-stoichiometric operation, additional air must be blown into the boiler room, above the burner. The disadvantage of this mode of operation is that in the sub-stoichiometric driven, lower part of the boiler room, slag formation and corrosion can occur on the tube walls. This puts the facility's operational safety at risk.
Det er dessuten konstatert at det likeledes kan oppnås en betydelig reduksjon av NO -strålingen ved å gjøre blandingen mellom luft- og brennstoffstrømmen lang- It has also been established that a significant reduction of NO radiation can also be achieved by lengthening the mixture between the air and fuel flow.
sommere. summer.
For dette formål egner seg f.eks. strålebren-nere hvor såvel luft- som brennstoffstrålen blåses paral-lelt inn i fyrrommet. For å oppnå en upåklagelig tenning, må brennerstrålene imidlertid understøtte hverandre gjen-sidig f.eks. i en hjørnefyring. For this purpose, e.g. jet burners where both the air and fuel jets are blown parallel into the boiler room. To achieve an impeccable ignition, however, the burner jets must mutually support each other, e.g. in a corner firing.
Når brenneren blir anbrakt i en mot- eller frontfyring, kan sammenblandingen av luft og brennstoff gjøres langsommere, f.eks. ved at støvstrålen som omgir sekundærluften, blåses inn med tilnærmet samme hastighet. When the burner is placed in a counter or front firing, the mixing of air and fuel can be slowed down, e.g. in that the dust jet that surrounds the secondary air is blown in at approximately the same speed.
Ved en kjent brenner blir sekundærluftstrøm-men tilført atskilt i to innbyrdes ringformet anbrakte rør, for at f.eks. den indre sekundærluftstrøm, som befinner seg i umiddelbar nærhet av støvstrålen, skal kunne komme ut med lavere og den ytre sekundærluftstrøm med høyere hastighet. En ulempe ved denne anordning er at det inntrer en forlengelse av flammen, hvilket resulterer i større fyr-rom, og at sekundærlufthastigheten ved den belastningsbe-tingete senkning av sekundærluften senkes under støvluft-hastigheten, hvorved flammens form og karakter forandrer seg. Under visse forhold kan dette påvirke tenningen på en uheldig måte. In the case of a known burner, the secondary air flow is supplied separately in two inter-ringed pipes, so that e.g. the inner secondary air flow, which is in the immediate vicinity of the dust jet, must be able to exit at a lower speed and the outer secondary air flow at a higher speed. A disadvantage of this device is that there is an extension of the flame, which results in a larger boiler space, and that the secondary air speed due to the load-dependent lowering of the secondary air is lowered below the dust air speed, whereby the shape and character of the flame changes. Under certain conditions, this can adversely affect the ignition.
Det er dessuten kjent å gjennomføre en pri-mærforbrenning under understøkiometriske forhold i et forkammer, til fyrrommet, og å tilblande den luft, som er nød-vendig for fullstendig avbrenning, i de fyringsgasser som forlater forkammeret. Ulempen med denne anordning består i faren for rørveggkorrosjon i det understøkiometrisk drevne forkammer. It is also known to carry out a primary combustion under sub-stoichiometric conditions in a pre-chamber, to the boiler room, and to mix the air, which is necessary for complete combustion, into the combustion gases leaving the pre-chamber. The disadvantage of this device is the risk of tube wall corrosion in the sub-stoichiometrically operated pre-chamber.
Oppfinnelsen har derfor satt seg som mål å skape en brenner, hvor forbrenningen ved en påvirkning av sekundærluftstrømmen og en innføring av samme på forskjel-lige steder av fyrrommet, og tilordnet brenneren, påvirkes på en slik måte at det i en umiddelbart ved brennerut-løpet tilsluttet delforbrenningssone (primær-sone) oppnås en stabil tenning over hele belastningsområdet ved under-støkiometriske forhold, og at det i en etterforbrennings-sone (sekundærsone), som slutter seg til primærsonen, The invention has therefore set itself the goal of creating a burner, where the combustion is affected by an influence of the secondary air flow and an introduction of the same in different places of the boiler room, and assigned to the burner, in such a way that in an immediate at the burner outlet connected partial combustion zone (primary zone), a stable ignition is achieved over the entire load range at sub-stoichiometric conditions, and that in an afterburning zone (secondary zone), which joins the primary zone,
skjer en restutbrenning ved overstøkiometriske forhold. a residual burnout occurs at overstoichiometric conditions.
I samsvar med oppfinnelsen kan dette oppnås ved å utforme brenneren i samsvar med den karakteriserende del av patentkrav 1. In accordance with the invention, this can be achieved by designing the burner in accordance with the characterizing part of patent claim 1.
Ved en videreutvikling av oppfinnelsen kan luft-dysene være utformet som perforerte dyser eller som opp-splittede dyser. De f.eks. slissformete åpninger kan være framstilt ved å fjerne sidestabilisatorene mellom rørene. In a further development of the invention, the air nozzles can be designed as perforated nozzles or as split nozzles. They e.g. slot-shaped openings can be produced by removing the side stabilizers between the tubes.
De fordeler som blir oppnådd med oppfinnelsen består hovedsaklig i at forbrenningsforløpet for det nitrogenholdige brennstoff, på grunn av tilførselen av en del av sekundærluften over luftdyser, som befinner seg utenfor brennerens kappeluftrør i fyrrommet,foregår på en slik måte at NO^-verdiene reduseres til et minimum, uten at tenningen av brenneren utsettes for risiko over det totale belastningsområdet, og uten at det oppstår slaggdannelse og korrosjon på fyrromrørene, samt uten at utbrenningen påvirkes ugunstig. The advantages achieved with the invention mainly consist in the fact that the combustion process for the nitrogen-containing fuel, due to the supply of part of the secondary air via air nozzles, which are located outside the burner's jacket air pipe in the boiler room, takes place in such a way that the NO^ values are reduced to a minimum, without the ignition of the burner being exposed to risk over the total load area, and without slag formation and corrosion occurring on the boiler tubes, as well as without the burnout being adversely affected.
Oppfinnelsen beskrives nærmere i det følgende under henvisning til tegningen som viser et utførelses-eksempel. The invention is described in more detail below with reference to the drawing which shows an exemplary embodiment.
Fig. 1 viser en prinsippskisse for brenneren Fig. 1 shows a schematic diagram of the burner
ifølge oppfinnelsen, sett i lengdesnitt. according to the invention, seen in longitudinal section.
Fig. 2 viser brenneren i oppriss, sett i pilens Fig. 2 shows the burner in elevation, seen in the direction of the arrow
F retning. F direction.
Den viste brenneren består av et sentralt kjerne-luftrør 1, som er innrettet til å oppta en oljeforstøverlanse for tennfyring eller alternativ effektfyring for olje. Kjerneluftrøret er forbundet med en kanal 2, og via et spjeld 3 står det i forbindelse med hovedluftkanalen 4. Et støvluftrør 6 er anbrakt koaksialt med kjerneluft-røret og er med støvfordelerkammeret 7 sluttet til en støv-ledning 8. Denne mates fra et karbonstøvrør med den støv-luftblanding som skal forbrennes. Et kappeluftrør 9 er anbrakt koaksialt omkring støvluftrøret og står i forbindelse med hovedluftkanalen 4 via spjeld 13. En skovhjulkrans 10, som gjennomstrømmes aksialt av kappeluften, kan for-skyves aksialt ved hjelp av flere spindler 11 og et ratt 12. Kappeluftkanalen er forbundet med fyrrommet via brennerbegeret 14 som vider seg konisk ut. Fra hovedluftkanalen 14 tilføres luft via flere kanaler 15 til trinnluft-dysen 16, som er jevnt fordelt over en tenkt delsirkel av brenneromkretsen. Brennerbegeret 14 er f.eks. framstilt av keramisk masse. Det blir innbygget i en rørkorg 18, som er dannet av fyrrommets veggrør. The burner shown consists of a central core air pipe 1, which is arranged to receive an oil atomizer lance for ignition or alternative effect firing for oil. The core air pipe is connected to a channel 2, and via a damper 3 it is connected to the main air channel 4. A dust air pipe 6 is placed coaxially with the core air pipe and is connected with the dust distribution chamber 7 to a dust line 8. This is fed from a carbon dust pipe with the dust-air mixture to be burned. A casing air pipe 9 is arranged coaxially around the dust air pipe and is connected to the main air duct 4 via damper 13. An impeller ring 10, which is axially flowed through by the casing air, can be shifted axially with the help of several spindles 11 and a steering wheel 12. The casing air duct is connected to the boiler room via the burner cup 14 which expands conically. From the main air duct 14, air is supplied via several ducts 15 to the stepped air nozzle 16, which is evenly distributed over an imaginary partial circle of the burner circumference. The burner cup 14 is e.g. produced from ceramic mass. It is built into a pipe basket 18, which is formed from the boiler room's wall pipes.
Trinnluftdysene 16 kan være utformet enten som perforerte dyser 16 eller som oppsplittete dyser. Sist-nevnte kan dannes ved å fjerne de sidestabilisatorer som er dannet av stegene ved fyrromveggen. The stepped air nozzles 16 can be designed either as perforated nozzles 16 or as split nozzles. The latter can be formed by removing the side stabilizers formed by the steps at the boiler room wall.
Den trinnluftstrøm som over kanalen 15 med dysene 16 kommer inn i fyrrommet, er regulerbar over et spjeld 17. The stepped airflow that enters the boiler room via the channel 15 with the nozzles 16 can be regulated via a damper 17.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2908448A DE2908448C2 (en) | 1979-03-05 | 1979-03-05 | Burners for burning nitrogenous fuels |
Publications (3)
Publication Number | Publication Date |
---|---|
NO800297L NO800297L (en) | 1980-09-08 |
NO149710B true NO149710B (en) | 1984-02-27 |
NO149710C NO149710C (en) | 1984-06-06 |
Family
ID=6064465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO800297A NO149710C (en) | 1979-03-05 | 1980-02-05 | BRENNER |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS55121308A (en) |
AU (1) | AU536420B2 (en) |
BE (1) | BE882038A (en) |
DE (1) | DE2908448C2 (en) |
DK (1) | DK148928C (en) |
FI (1) | FI65853C (en) |
FR (1) | FR2450999B1 (en) |
GB (1) | GB2043871B (en) |
IT (1) | IT1135969B (en) |
NL (1) | NL8000995A (en) |
NO (1) | NO149710C (en) |
SE (1) | SE439363B (en) |
ZA (1) | ZA801258B (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745007A (en) * | 1980-08-30 | 1982-03-13 | Matsushita Electric Works Ltd | Manufacture of artificial decorative veneer |
DE3048201A1 (en) * | 1980-12-20 | 1982-07-08 | L. & C. Steinmüller GmbH, 5270 Gummersbach | Burner for nitrogen-bearing fuels, with coaxial primary air ducts - has furnace gas recirculating ducts to these ducts, pref. entering at restriction |
JPS5811308A (en) * | 1981-07-14 | 1983-01-22 | Sumitomo Cement Co Ltd | Pulverized coal combustion burner |
JPS5824712A (en) * | 1981-08-06 | 1983-02-14 | Kobe Steel Ltd | Method of blow-in combustion of pulverized coal |
JPS58132314U (en) * | 1982-02-26 | 1983-09-06 | 住友金属工業株式会社 | pulverized coal burner |
US4523530A (en) * | 1982-02-26 | 1985-06-18 | Sumitomo Metal Industries, Ltd. | Powdery coal burner |
US5302115A (en) * | 1982-09-15 | 1994-04-12 | Damper Design, Inc. | Burner register assembly |
US4504216A (en) * | 1982-09-15 | 1985-03-12 | Eagleair, Inc. | Burner register assembly |
DE3331989A1 (en) * | 1983-09-05 | 1985-04-04 | L. & C. Steinmüller GmbH, 5270 Gummersbach | METHOD FOR REDUCING NO (DOWN ARROW) X (DOWN ARROW) EMISSIONS FROM THE COMBUSTION OF NITROGENOUS FUELS |
GB8331128D0 (en) * | 1983-11-22 | 1983-12-29 | Babcock Prod Eng | Axial swirl generators |
DE3543917C3 (en) * | 1985-12-12 | 1997-03-13 | Steinmueller Gmbh L & C | Process for the combustion of ignitable fuel dust via ceiling burners in a combustion chamber and combustion chamber for burning such a fuel dust |
US4732093A (en) * | 1986-02-11 | 1988-03-22 | J. R. Tucker And Associates | Annular nozzle burner and method of operation |
US4768948A (en) * | 1986-02-11 | 1988-09-06 | J. R. Tucker & Associates | Annular nozzle burner and method of operation |
DE3825291A1 (en) * | 1988-07-26 | 1990-02-01 | Ver Kesselwerke Ag | METHOD AND COMBUSTION PLANT FOR COMBUSTION OF FOSSILER FUELS WITH REDUCED EMISSIONS OF NITROGEN |
SE464542B (en) * | 1989-11-01 | 1991-05-06 | Aga Ab | SEAT AND DEVICE FOR COMBUSTION OF SPIRITLY FLUID OR GASFUL FOSSIL BRAZLE |
AU5010393A (en) * | 1992-08-18 | 1994-03-15 | Damper Design, Inc. | Apparatus and method for delivery of particulate fuel and transport air |
DE19942767A1 (en) * | 1999-09-08 | 2001-03-15 | Bbp Energy Gmbh | Steam generator |
US7775791B2 (en) * | 2008-02-25 | 2010-08-17 | General Electric Company | Method and apparatus for staged combustion of air and fuel |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL85968C (en) * | ||||
CH346313A (en) * | 1955-11-05 | 1960-05-15 | Walther & Cie Ag | Pulverized coal burners |
DE1868003U (en) * | 1962-02-10 | 1963-02-28 | Steinmueller Gmbh L & C | BURNERS FOR DUST COAL FIRING. |
DE1401932A1 (en) * | 1962-06-09 | 1968-10-24 | Steinmueller Gmbh L & C | Procedure for operating burners for boiler furnaces |
FR1347777A (en) * | 1962-11-19 | 1964-01-04 | O C C R Organisation Conceptio | Plant waste dust burner |
US3748080A (en) * | 1971-12-27 | 1973-07-24 | Peabody Engineering Corp | Combustion control apparatus using a liquid spray |
US4004875A (en) * | 1975-01-23 | 1977-01-25 | John Zink Company | Low nox burner |
US4023921A (en) * | 1975-11-24 | 1977-05-17 | Electric Power Research Institute | Oil burner for NOx emission control |
CH622081A5 (en) * | 1977-06-17 | 1981-03-13 | Sulzer Ag |
-
1979
- 1979-03-05 DE DE2908448A patent/DE2908448C2/en not_active Expired
-
1980
- 1980-02-05 NO NO800297A patent/NO149710C/en unknown
- 1980-02-18 NL NL8000995A patent/NL8000995A/en not_active Application Discontinuation
- 1980-02-20 FR FR8003736A patent/FR2450999B1/en not_active Expired
- 1980-02-26 SE SE8001481A patent/SE439363B/en not_active IP Right Cessation
- 1980-02-27 DK DK84180A patent/DK148928C/en not_active IP Right Cessation
- 1980-02-28 GB GB8006860A patent/GB2043871B/en not_active Expired
- 1980-02-29 IT IT04811/80A patent/IT1135969B/en active
- 1980-03-03 BE BE0/199641A patent/BE882038A/en not_active IP Right Cessation
- 1980-03-03 AU AU56063/80A patent/AU536420B2/en not_active Ceased
- 1980-03-03 JP JP2536280A patent/JPS55121308A/en active Granted
- 1980-03-04 ZA ZA00801258A patent/ZA801258B/en unknown
- 1980-03-05 FI FI800680A patent/FI65853C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE2908448C2 (en) | 1983-04-14 |
FI65853B (en) | 1984-03-30 |
SE439363B (en) | 1985-06-10 |
FR2450999B1 (en) | 1985-11-29 |
FR2450999A1 (en) | 1980-10-03 |
FI800680A (en) | 1980-09-06 |
DE2908448A1 (en) | 1980-09-18 |
NO149710C (en) | 1984-06-06 |
GB2043871B (en) | 1982-12-15 |
JPS6115962B2 (en) | 1986-04-26 |
AU536420B2 (en) | 1984-05-10 |
DK84180A (en) | 1980-09-06 |
SE8001481L (en) | 1980-09-06 |
JPS55121308A (en) | 1980-09-18 |
GB2043871A (en) | 1980-10-08 |
DK148928C (en) | 1986-05-05 |
BE882038A (en) | 1980-07-01 |
ZA801258B (en) | 1981-03-25 |
IT8004811A0 (en) | 1980-02-29 |
NL8000995A (en) | 1980-09-09 |
IT1135969B (en) | 1986-08-27 |
FI65853C (en) | 1984-07-10 |
NO800297L (en) | 1980-09-08 |
DK148928B (en) | 1985-11-18 |
AU5606380A (en) | 1980-09-11 |
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