EP2102549A1 - Drehofenbrenner - Google Patents
DrehofenbrennerInfo
- Publication number
- EP2102549A1 EP2102549A1 EP07856970A EP07856970A EP2102549A1 EP 2102549 A1 EP2102549 A1 EP 2102549A1 EP 07856970 A EP07856970 A EP 07856970A EP 07856970 A EP07856970 A EP 07856970A EP 2102549 A1 EP2102549 A1 EP 2102549A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- expansion chamber
- fuels
- flame
- mouth
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- 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
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
- F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
- F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/12—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of plastics, e.g. rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
- F23D2201/10—Nozzle tips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/54402—Injecting fluid waste into incinerator
Definitions
- the invention relates to a burner for a rotary kiln for the production of cement clinker, with a within a combustion liner arranged annular channel for discharging primary fuels z.
- a burner for a rotary kiln for the production of cement clinker with a within a combustion liner arranged annular channel for discharging primary fuels z.
- primary fuels z As coal dust, with at least one annular primary air channel and at least one integrated in the burner tube for the pneumatic transport of lumpy secondary fuels and their blowing at the burner mouth.
- calcined cement powder is fired in the sintering zone of a rotary kiln to form cement clinker.
- a long burner lance is inserted into the kiln outlet end through the stationary kiln outlet casing, at the mouth of which the combustibles introduced into the lance burn to form a burner flame.
- clinker mineral formation in the rotary kiln it depends on the correct temperature, length and other design of the burner flame.
- the development aims to build the rotary kiln itself as short as possible by high-grade calcination of the cement raw meal outside the rotary kiln itself, so that in response to this the burner flame should as a rule be as short and hot as possible.
- fuels instead of liquid and gaseous fuels are increasingly solid fuels, especially coal dust, but lately also pneumatically transportable particulate waste fuels such.
- Known rotary kiln burners are often designed as so-called three-channel burners (eg DE 43 19 363 A1) with at least three mutually concentric channels, ie the pneumatically transported coal dust flowing through the central burner channel flows through an annular gap nozzle, the coal dust flowing out is surrounded by radially inner as well as radially outer primary air as combustion air.
- the radially outer air also called jet air
- jet air is divided into a plurality of individual high-speed primary air jets by means of a plurality of individual jets arranged in the annular jet air channel, which generate a negative pressure area in their surroundings, ie the many high-speed primary jets serve as jet jets according to the injector principle, through which the large mass of the rotary kiln burner surrounding, practically restrained hot secondary air of z. B. about 1000 0 C is sucked inward toward the core of the burner flame, where intensive mixing of the hot secondary air takes place with the exiting through the annular nozzle carbon dust, which is to burn quickly and completely to form a short hot flame.
- the invention has for its object to provide a rotary kiln burner, in which the amount of usable low-cost secondary fuels to be used can increase as an energy source and influence on the design of the burner flame can be taken.
- an expansion chamber open towards the burner mouth is arranged in front of the mouth of the at least one tube for blowing out the lumpy secondary fuels in the burner with an enlarged cross-section compared to the secondary fuel pipe.
- the amount of usable low-cost secondary fuels as energy carriers can be significantly increased and a portion of the comparatively expensive primary fuel can be saved.
- the axial length of the expansion chamber is variable by axial displacement of the secondary fuel tube (s) during burner operation.
- a separate swirl generator can be arranged at the outlet of the / the secondary fuel tubes in the expansion chamber for the rotation of the secondary fuels already in the expansion chamber.
- the swirl generator can consist of a component attached to the outlet of the secondary fuel tube and through which the secondary fuels flow, which has circumferentially distributed swirl slots through which additional primary air blown through the burner flows, the latter having its angular momentum in the expansion chamber on the blown secondary fuels ü- transmits.
- Fig. 1 schematically an axial section through the center of the mouth of the rotary kiln burner according to the invention with lumped secondary fuels used, and
- Fig. 2 enlarged drawn and perspective in detail the axial section through the burner mouth, partially in front view.
- the rotary kiln burner according to the invention is first a three-channel burner with a ring-shaped channel 10 for the pneumatic transport of a fine-grained solid fuel such.
- a fine-grained solid fuel such as coal dust, which flows through an annular gap nozzle 11 with a small outwardly diverging angle.
- the coal dust channel 10 is concentrically surrounded both by a radially inwardly and radially outwardly located combustion air channel, these combustion air streams forming the primary air for the burner.
- the concentrically disposed within the coal dust channel 10 primary air channel 12 is at its mouth with a swirl generator 13 z. B. equipped with spiral slots, so that this radially inner primary air duct is also called swirl air duct.
- the radially outer primary air also called jet air
- jet air is distributed over axis-parallel distributed about the burner axis jet air tubes 14 and it occurs at high speed in the form of jets from individual distributed around the circumference of the burner mouth arranged jet air nozzles 15, z. B. 12 pieces.
- the high-speed jet air jets which are able to as much as possible of the hot secondary air surrounding the rotary kiln burner in the rotary kiln of z. B. 1000 ° C in the core of the burner flame in order to quickly and completely absorb fuel combustion, the fuel cone or the burner flame at an optimal location to achieve great flame turbulence.
- Cooling air is blown through the burner in the annular space between the outer combustion support tube 16 and the pulverulent coal tube 17 concentrically arranged, which flows out at the burner mouth in the region between the adjacent jet air nozzles 15, where then the cooling air heated at the burner lance forms a portion of the primary air.
- the annular cooling air channel is designated by the reference numeral 18.
- the burner support pipe 16 is protected in the front burner lance area by an applied refractory mass (not shown in FIG. 2).
- the lumped secondary fuels 25 injected via the tubes 19, 20 are first allowed to exit into the expansion chamber 21, from which then the lumped secondary fuels preheated there with a prolonged residence time at a significantly reduced velocity at the burner mouth into the flame cone of the burner flame occur, minimizing the risk of particulate secondary fuel particles passing by at the flame.
- the amount of usable low-priced particulate secondary fuels such.
- B. waste plastic granules as energy sources considerably increase and part of the comparatively expensive primary fuel, z. B. save coal dust.
- the axial length and the volume of the expansion chamber 21 can be varied during burner operation. In this way, influence can be exerted on the exit velocity, flight distance and pre-oxidation of the lumped secondary fuel particles blown out at the burner mouth as well as on the design of the burner flame.
- this swirl generator 23 consists of a component attached to the outlets of the secondary fuel pipes 19, 20 and through which the secondary fuels flow, which has swirl slots distributed over the circumference, through which additional primary air blown through the burner flows, via the annular channel 24 is introduced into the burner and transmits its angular momentum in the expansion chamber 21 on the blown lumped secondary fuels.
- the rotary kiln burner according to the invention is suitable for the proportion of used relatively expensive primary fuel z.
- coal dust as solid fuel or oil and reduce the proportion of inexpensive alternative fuels such as lumpy waste fuels such.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL07856970T PL2102549T3 (pl) | 2006-12-22 | 2007-12-20 | Palnik pieca obrotowego |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006060867.4A DE102006060867B4 (de) | 2006-12-22 | 2006-12-22 | Drehofenbrenner |
| PCT/EP2007/011247 WO2008077576A1 (de) | 2006-12-22 | 2007-12-20 | Drehofenbrenner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2102549A1 true EP2102549A1 (de) | 2009-09-23 |
| EP2102549B1 EP2102549B1 (de) | 2016-12-07 |
Family
ID=39278331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07856970.4A Active EP2102549B1 (de) | 2006-12-22 | 2007-12-20 | Drehofenbrenner |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8393893B2 (de) |
| EP (1) | EP2102549B1 (de) |
| DE (1) | DE102006060867B4 (de) |
| PL (1) | PL2102549T3 (de) |
| WO (1) | WO2008077576A1 (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006060869A1 (de) * | 2006-12-22 | 2008-06-26 | Khd Humboldt Wedag Gmbh | Verfahren zur Regelung des Betriebes eines Drehofenbrenners |
| DE202008009650U1 (de) * | 2008-07-18 | 2009-11-26 | Ammann Schweiz Ag | Mehrstoff-Brenner |
| EP2312215A1 (de) * | 2008-10-01 | 2011-04-20 | Siemens Aktiengesellschaft | Brenner und Verfahren zum Betrieb eines Brenners |
| DE102010061496A1 (de) * | 2010-12-22 | 2012-06-28 | Thyssenkrupp Polysius Ag | Rohrförmiger Brenner sowie Verfahren zum Betreiben eines rohrförmigen Brenners |
| CN103807869B (zh) * | 2012-11-08 | 2016-03-30 | 烟台龙源电力技术股份有限公司 | 一种用于锅炉的燃尽风喷口及锅炉 |
| DE102013004016A1 (de) * | 2013-03-08 | 2014-09-11 | Messer Austria Gmbh | Mehrstoffbrenner und Verfahren zum Beheizen eines Ofenraums |
| KR20180034598A (ko) * | 2015-07-31 | 2018-04-04 | 누베라 퓨엘 셀스, 엘엘씨 | 낮은 NOx 방출물을 갖는 버너 조립체 |
| WO2017193191A1 (en) * | 2016-05-11 | 2017-11-16 | Dynamis Engenharia E Comércio Ltda. | Method to enhance burner efficiency and burner |
| CN106361121B (zh) * | 2016-11-02 | 2018-01-05 | 吉林省福泰厨具有限公司 | 一种无烟焚烧炉 |
| US11555612B2 (en) * | 2017-11-29 | 2023-01-17 | Babcock Power Services, Inc. | Dual fuel direct ignition burners |
| IL266905B2 (en) * | 2019-05-27 | 2024-04-01 | Babcock Power Services Inc | Dual fuel direct ignition burners |
| CN112166288B (zh) * | 2019-08-14 | 2024-05-31 | 太平洋水泥株式会社 | 可燃性废弃物吹入装置及其运转方法 |
| WO2021029032A1 (ja) * | 2019-08-14 | 2021-02-18 | 太平洋セメント株式会社 | 可燃性廃棄物吹込装置及びその運転方法 |
| AT524888A1 (de) * | 2021-03-23 | 2022-10-15 | Mme Eng E U | Ultra-Low-NOx-Brenner |
| US12158268B2 (en) * | 2021-06-08 | 2024-12-03 | Forney Corporation | High-capacity igniter |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1096530B (de) * | 1957-12-20 | 1961-01-05 | Borsig Ag | Mischbrenner mit axial verschiebbarer Regeleinrichtung an der Brennermuendung |
| DE1451440A1 (de) * | 1963-08-06 | 1969-03-06 | Unitherm Deutsche Ges Fuer Uni | OElbrenner |
| FR1536372A (fr) * | 1967-07-04 | 1968-08-27 | Union Generale De Distrib De P | Appareillage à brûleur gazéifiant une émulsion pulvérisée de combustible liquide |
| DE2144481A1 (de) * | 1971-09-06 | 1973-03-15 | Balcke Maschbau Ag | Brenner, insbesondere fuer gasfoermige brennstoffe |
| US4517905A (en) * | 1983-02-10 | 1985-05-21 | Prm Energy Systems, Inc. | Particulate waste product combustion system |
| DE3518080A1 (de) * | 1985-05-20 | 1986-11-20 | Stubinen Utveckling AB, Stockholm | Verfahren und vorrichtung zum verbrennen fluessiger und/oder fester brennstoffe in pulverisierter form |
| US4775314A (en) * | 1985-05-20 | 1988-10-04 | Shell Oil Company | Coal gasification burner |
| DD290334A7 (de) * | 1988-10-21 | 1991-05-29 | Zementwerke Bernburg Gmbh I.G.,De | Steuerbarer gasbrenner fuer drehrohroefen |
| DE3837586A1 (de) * | 1988-11-05 | 1990-05-10 | Krupp Koppers Gmbh | Vergasungsbrenner fuer eine anlage fuer die vergasung von festen brennstoffen |
| US5178533A (en) * | 1989-10-04 | 1993-01-12 | Enterprise Generale De Chauffage Industries Pillard | Process for exploiting a burner and burners for a rotary tubular furnance |
| FR2656676B1 (fr) * | 1989-12-28 | 1994-07-01 | Inst Francais Du Petrole | Bruleur industriel a combustible liquide a faible emission d'oxyde d'azote, ledit bruleur generant plusieurs flammes elementaires et son utilisation. |
| DE69120441T2 (de) * | 1990-03-07 | 1997-01-23 | Babcock Hitachi Kk | Kohlenstaubbrenner, Kohlenstaubkessel und Verfahren zum Verbrennen von Kohlenstaub |
| US5199355A (en) * | 1991-08-23 | 1993-04-06 | The Babcock & Wilcox Company | Low nox short flame burner |
| DE4319363A1 (de) * | 1993-06-11 | 1994-12-15 | Kloeckner Humboldt Deutz Ag | Drehofenbrenner |
| AT402963B (de) * | 1995-09-07 | 1997-10-27 | Voest Alpine Ind Anlagen | Verfahren zum verbrennen von brennstoff |
| WO1998029690A1 (en) * | 1996-12-27 | 1998-07-09 | Sumitomo Osaka Cement Co., Ltd. | Device and method for combustion of fuel |
| JP2000327378A (ja) * | 1999-05-19 | 2000-11-28 | Ishikawajima Harima Heavy Ind Co Ltd | 難燃性燃料用仮焼炉 |
| JP4341131B2 (ja) * | 2000-01-19 | 2009-10-07 | Jfeスチール株式会社 | 微粉炭吹込みバーナー |
| US6315551B1 (en) * | 2000-05-08 | 2001-11-13 | Entreprise Generale De Chauffage Industriel Pillard | Burners having at least three air feed ducts, including an axial air duct and a rotary air duct concentric with at least one fuel feed, and a central stabilizer |
| US6461148B1 (en) * | 2000-09-28 | 2002-10-08 | Mcdermott Technology, Inc. | Compact, high-temperature, low-flow rate, liquid fuel-fired burner |
| JP4550989B2 (ja) * | 2000-11-01 | 2010-09-22 | 大同特殊鋼株式会社 | 粉体溶融バーナ |
| DE50111599D1 (de) * | 2000-11-27 | 2007-01-18 | Linde Ag | Verfahren zur chemischen umsetzung zweier gasströme |
| AT410584B (de) * | 2001-05-21 | 2003-06-25 | Unitherm Cemcon Feuerungsanlag | Brenner für grossfeuerungen |
| AT411928B (de) * | 2001-12-21 | 2004-07-26 | Unitherm Cemcon Feuerungsanlag | Brenner, insbesondere für drehrohröfen |
| US6968692B2 (en) * | 2002-04-26 | 2005-11-29 | Rolls-Royce Corporation | Fuel premixing module for gas turbine engine combustor |
| US6969249B2 (en) * | 2003-05-02 | 2005-11-29 | Hauck Manufacturing, Inc. | Aggregate dryer burner with compressed air oil atomizer |
| DE102004010063A1 (de) | 2004-03-02 | 2005-09-22 | Khd Humboldt Wedag Ag | Drehofenbrenner |
| KR101129628B1 (ko) * | 2007-05-30 | 2012-03-27 | 타이요 닛폰 산소 가부시키가이샤 | 무기질 구상화입자 제조용 버너 |
-
2006
- 2006-12-22 DE DE102006060867.4A patent/DE102006060867B4/de active Active
-
2007
- 2007-12-20 WO PCT/EP2007/011247 patent/WO2008077576A1/de not_active Ceased
- 2007-12-20 EP EP07856970.4A patent/EP2102549B1/de active Active
- 2007-12-20 PL PL07856970T patent/PL2102549T3/pl unknown
- 2007-12-20 US US12/520,661 patent/US8393893B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008077576A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006060867A1 (de) | 2008-06-26 |
| WO2008077576A1 (de) | 2008-07-03 |
| US20100019063A1 (en) | 2010-01-28 |
| EP2102549B1 (de) | 2016-12-07 |
| DE102006060867B4 (de) | 2020-07-02 |
| US8393893B2 (en) | 2013-03-12 |
| PL2102549T3 (pl) | 2017-05-31 |
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