EP2102549A1 - Rotary furnace burner - Google Patents
Rotary furnace burnerInfo
- 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
- 239000000446 fuel Substances 0.000 claims abstract description 67
- 230000004323 axial length Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 239000002817 coal dust Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 2
- 101100495769 Caenorhabditis elegans che-1 gene Proteins 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000004449 solid propellant Substances 0.000 description 3
- 229920000426 Microplastic Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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 conjointly or alternatively 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 (en) | 2006-12-22 | 2007-12-20 | Rotary furnace burner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006060867.4A DE102006060867B4 (en) | 2006-12-22 | 2006-12-22 | Rotary kiln burners |
PCT/EP2007/011247 WO2008077576A1 (en) | 2006-12-22 | 2007-12-20 | Rotary furnace burner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2102549A1 true EP2102549A1 (en) | 2009-09-23 |
EP2102549B1 EP2102549B1 (en) | 2016-12-07 |
Family
ID=39278331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07856970.4A Active EP2102549B1 (en) | 2006-12-22 | 2007-12-20 | Rotary furnace burner |
Country Status (5)
Country | Link |
---|---|
US (1) | US8393893B2 (en) |
EP (1) | EP2102549B1 (en) |
DE (1) | DE102006060867B4 (en) |
PL (1) | PL2102549T3 (en) |
WO (1) | WO2008077576A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006060869A1 (en) * | 2006-12-22 | 2008-06-26 | Khd Humboldt Wedag Gmbh | Method for controlling the operation of a rotary kiln burner |
DE202008009650U1 (en) * | 2008-07-18 | 2009-11-26 | Ammann Schweiz Ag | Multi-fuel burner |
EP2312215A1 (en) * | 2008-10-01 | 2011-04-20 | Siemens Aktiengesellschaft | Burner and Method for Operating a Burner |
DE102010061496A1 (en) * | 2010-12-22 | 2012-06-28 | Thyssenkrupp Polysius Ag | A tubular burner and method of operating a tubular burner |
CN103807869B (en) * | 2012-11-08 | 2016-03-30 | 烟台龙源电力技术股份有限公司 | A kind of fire air nozzle for boiler and boiler |
DE102013004016A1 (en) * | 2013-03-08 | 2014-09-11 | Messer Austria Gmbh | Multi-fuel burner and method for heating a furnace chamber |
CA2994119A1 (en) * | 2015-07-31 | 2017-02-09 | Nuvera Fuel Cells, LLC | Burner assembly with low nox emissions |
MX2018012055A (en) * | 2016-05-11 | 2019-01-10 | Dynamis Engenharia E Comercio Ltda | Method to enhance burner efficiency and burner. |
CN106361121B (en) * | 2016-11-02 | 2018-01-05 | 吉林省福泰厨具有限公司 | A kind of smokeless incinerator |
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 |
CN112166289B (en) * | 2019-08-14 | 2021-09-17 | 太平洋水泥株式会社 | Combustible waste blowing device and operation method thereof |
US11421871B2 (en) * | 2019-08-14 | 2022-08-23 | Taiheiyo Cement Corporation | Combustible waste injection device and method for operating the same |
AT524888A1 (en) * | 2021-03-23 | 2022-10-15 | Mme Eng E U | Ultra low NOx burner |
US20220390108A1 (en) * | 2021-06-08 | 2022-12-08 | Forney Corporation | High-capacity igniter |
Family Cites Families (28)
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DE1096530B (en) * | 1957-12-20 | 1961-01-05 | Borsig Ag | Mixing burner with axially movable control device at the burner mouth |
DE1451440A1 (en) * | 1963-08-06 | 1969-03-06 | Unitherm Deutsche Ges Fuer Uni | Oil burner |
FR1536372A (en) * | 1967-07-04 | 1968-08-27 | Union Generale De Distrib De P | Burner apparatus gasifying a pulverized emulsion of liquid fuel |
DE2144481A1 (en) * | 1971-09-06 | 1973-03-15 | Balcke Maschbau Ag | BURNERS, IN PARTICULAR FOR GAS FUELS |
US4517905A (en) * | 1983-02-10 | 1985-05-21 | Prm Energy Systems, Inc. | Particulate waste product combustion system |
US4775314A (en) * | 1985-05-20 | 1988-10-04 | Shell Oil Company | Coal gasification burner |
DE3518080A1 (en) * | 1985-05-20 | 1986-11-20 | Stubinen Utveckling AB, Stockholm | METHOD AND DEVICE FOR BURNING LIQUID AND / OR SOLID FUELS IN POWDERED FORM |
DD290334A7 (en) * | 1988-10-21 | 1991-05-29 | Zementwerke Bernburg Gmbh I.G.,De | CONTROLLABLE GAS BURNER FOR THREE-HEAD PANS |
DE3837586A1 (en) * | 1988-11-05 | 1990-05-10 | Krupp Koppers Gmbh | GASIFICATION BURNER FOR A PLANT FOR GASIFYING SOLID FUELS |
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 (en) * | 1989-12-28 | 1994-07-01 | Inst Francais Du Petrole | INDUSTRIAL BURNER WITH LIQUID FUEL WITH LOW EMISSION OF NITROGEN OXIDE, SAID BURNER GENERATING SEVERAL ELEMENT FLAMES AND ITS USE. |
FI98658C (en) * | 1990-03-07 | 1997-07-25 | Hitachi Ltd | Burner for pulverized carbon, boiler for pulverized carbon and method for combustion of pulverized carbon |
US5199355A (en) * | 1991-08-23 | 1993-04-06 | The Babcock & Wilcox Company | Low nox short flame burner |
DE4319363A1 (en) * | 1993-06-11 | 1994-12-15 | Kloeckner Humboldt Deutz Ag | Rotary kiln burners |
AT402963B (en) * | 1995-09-07 | 1997-10-27 | Voest Alpine Ind Anlagen | METHOD FOR BURNING FUEL |
CN1316197C (en) * | 1996-12-27 | 2007-05-16 | 住友大阪水泥股份有限公司 | Device and method for combustion of fuel |
JP2000327378A (en) * | 1999-05-19 | 2000-11-28 | Ishikawajima Harima Heavy Ind Co Ltd | Calcining furnace for retardant fuel |
JP4341131B2 (en) * | 2000-01-19 | 2009-10-07 | Jfeスチール株式会社 | Pulverized coal blowing burner |
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 (en) * | 2000-11-01 | 2010-09-22 | 大同特殊鋼株式会社 | Powder melting burner |
ES2277962T3 (en) * | 2000-11-27 | 2007-08-01 | Linde Aktiengesellschaft | PROCESS OF CHEMICAL REACTION OF TWO GAS CURRENTS. |
AT410584B (en) * | 2001-05-21 | 2003-06-25 | Unitherm Cemcon Feuerungsanlag | Burner for large furnaces, particularly rotating tube furnaces |
AT411928B (en) * | 2001-12-21 | 2004-07-26 | Unitherm Cemcon Feuerungsanlag | BURNER, ESPECIALLY FOR TURNTUBE |
WO2003091557A1 (en) * | 2002-04-26 | 2003-11-06 | 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 (en) * | 2004-03-02 | 2005-09-22 | Khd Humboldt Wedag Ag | Rotary kiln burner |
US8393892B2 (en) * | 2007-05-30 | 2013-03-12 | Taiyo Nippon Sanso Corporation | Burner for production of inorganic spheroidized particle |
-
2006
- 2006-12-22 DE DE102006060867.4A patent/DE102006060867B4/en active Active
-
2007
- 2007-12-20 US US12/520,661 patent/US8393893B2/en active Active
- 2007-12-20 WO PCT/EP2007/011247 patent/WO2008077576A1/en active Application Filing
- 2007-12-20 PL PL07856970T patent/PL2102549T3/en unknown
- 2007-12-20 EP EP07856970.4A patent/EP2102549B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008077576A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8393893B2 (en) | 2013-03-12 |
WO2008077576A1 (en) | 2008-07-03 |
EP2102549B1 (en) | 2016-12-07 |
DE102006060867A1 (en) | 2008-06-26 |
US20100019063A1 (en) | 2010-01-28 |
DE102006060867B4 (en) | 2020-07-02 |
PL2102549T3 (en) | 2017-05-31 |
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