CN101334166A - Coal dust burner for igniting fuel fed into thick flow supplies - Google Patents
Coal dust burner for igniting fuel fed into thick flow supplies Download PDFInfo
- Publication number
- CN101334166A CN101334166A CNA2008100997861A CN200810099786A CN101334166A CN 101334166 A CN101334166 A CN 101334166A CN A2008100997861 A CNA2008100997861 A CN A2008100997861A CN 200810099786 A CN200810099786 A CN 200810099786A CN 101334166 A CN101334166 A CN 101334166A
- Authority
- CN
- China
- Prior art keywords
- burner
- fuel
- primary air
- supply pipe
- pipe
- 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.)
- Pending
Links
Images
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
-
- 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
Abstract
The invention discloses a burner, in particular a powdered coal burner (1). The powdered coal burner is provided with a fuel transfer tube (7) and a primary air pipe (9) concentricly arranged in the fuel transfer tube (7), the primary air pipe (9) is ended at a spout discharging side having a distance with a spout opening of the fuel transfer tube (7), the powdered coal burner (1) is connected or capable of connecting to a supply pipeline for transporting concentrated phase powdered fuel. A scheme is established according to the burner, which is suitable to a dense-phase transfer mechanism of which a burner is capable of preparing fuel for igniting low NOx in the furnace of a steam boiler, the low NOx combustion performance can not be influenced by adverse effect. The objective is realized by forming a fuel transfer space (13) between an inner space connected or capable of connecting to the primary air pipe (9) of the fuel transfer tube (7), the primary air pipe (9) and the fuel transfer tube (7). The fuel transfer space (13) is connected or capable of connecting to the supply pipeline for supplying concentrated phase powdered fuel to the burner (1).
Description
Technical field
The present invention relates to burner, be specifically related to a kind of coal burner, it has fuel-supply pipe and the primary air pipe of arranged concentric in fuel-supply pipe, wherein the primary air pipe is discharged on the side at mouth and is being stopped with the nozzle part opening of fuel-supply pipe place separated by a distance, and burner is connected to or can be connected to the supply line of carrying the concentrated phase dusty fuel.In addition, the present invention relates in burner combustion particle shape fuel with primary air pipe and fuel-supply pipe particularly coal dust be preferably the method for dried brown coal coal dust, wherein, fuel is supplied to burner by the concentrated phase conveyer mechanism, mixes along the longitudinal axis conveying of burner and with combustion air in burner inside by the concentrated phase conveyer mechanism then.
Background technology
For the particularly burning of coal dust and dried brown coal coal dust of microgranular fuel, it is known carrying out this burning in burner, and described burner also has primary air supply pipe, SAS Secondary Air Supply pipe and tertiary air supply pipe except having core air supply pipe.This class burner is particularly useful for lighting the stove of big steam boiler.In this case, primary air supply pipe, SAS Secondary Air Supply pipe and tertiary air supply pipe carry the form in cross section to form and arranging with the annular of arranging concentrically with respect to one another, perhaps form and arranging, in above-mentioned central core air hose, can be furnished with devices such as fuel oil burner rifle with form around the coaxial concentric structure of central core air hose.In this case, the primary combustion air (primary air) in the primary air pipe that dusty fuel is common and burner is interior is directed to the burner mouth together.Then, will be arranged in that cyclone on the core outside of sleeve is arranged in this primary air pipe and the eddy flow of expectation be imposed on the mixture of coal dust/primary air, therefore, make burning particularly about the low NO of fuel
XCombustion optimisation perhaps improves at least.These burners use utilizing the pneumatic conveying band dusty fuel directly to be delivered to from grinder the factory of burner usually.Xiang Guan shortcoming is therewith, in this process is to operate with lower transmission gas capacity value and higher transporting velocity.This just causes dispatch tube to be subjected to very galling.In addition, carrier pipe has relatively large size (conveying cross section).
For fear of these shortcomings, the burner of general type and the method for general type have been proposed among the document DE 19715373A1, wherein, dusty fuel pneumatically is delivered to burner, carries with concentrated phase in concentrated phase conveying system in burner inside then.In view of the above, dried brown coal coal dust utilizes concentrated phase conveying system to carry out single-stage and carries, and transmit the conveying gas capacity value that gas transmits at least 60 kilograms of coal dusts with every kilogram, perhaps be supplied to the steam boiler burner with the conveying current density that contains 100～350 kilograms of coal dusts in every cubic metre.For the matter stream of controlling coal dust and the load of conveyance conduit, with water vapour or such as hot inert gasses such as flue gas or nitrogen as the pneumatic conveying media.In this case, such burner has been described among the DE 19715973A1, wherein, fuel in the central supply pipeline to the burner supply, the process of discharging, mix then with primary air flows and secondary air streams from this central tube, scatter, and be disseminated in the stove with suspended state, above-mentioned primary air flows and secondary air streams come from the ring-shaped channel type opening around this central tube arranged concentric.Another kind of burner has the center primary air pipe that is centered on one heart by auxiliary air pipeline and tertiary air pipeline.For this burner, in the mode pulverized coal channel that be provided with of primary air pipe, fuel is being introduced into burner with coiling, and burner inside be disposed to the nozzle part opening of burner secondary-air passage separated by a distance in.
This known burner has had such advantage really: be supplied to the combustion air flow of burner and fuel stream spatially separated from one another, therefore the conveying of the concentrated phase of fuel is feasible, wherein the concentrated phase conveyer mechanism by the application is understandable that, transmitting the gas capacity value is that every kilogram of transmission gas transmits above 20 kilograms of coal dusts, and carry gas velocity under the pressure of＜10 crust be 3 meter per seconds to about 20 meter per seconds, but with low NO
XThe burning that burning is relevant does not still reach optimization.Particularly, for it is characterized in that especially hanging down NO
XSo-called DS (eddy flow) burner of burning, can not in central core air hose or center air hose, dusty fuel be supplied to burner, can not dusty fuel be supplied to burner by the additional fuel conveyance conduit that in the SAS Secondary Air Supply passage, is provided with in the coiling mode.In order to realize low NO
XBurning, technical goal is: before fuel draining is to the stove, be increased in the fuel concentration in the outermost radial outside zone of the primary air flows that is guided in the burner, wherein, this increase should be finished around the primary air injector equably.Under the situation of burner known from DE 19715973A1, can not realize this target.Passing through under the situation of center carrier pipe by the burner of concentrated phase conveyer mechanism fuel supplying, the supply pipe of fuel is located immediately at the central authorities in zone of the longitudinal axis extended line of burner, and therefore the primary air flows of arranging around this supply pipe does not just have the fuel particles enrichment in its radially outer zone.Under the situation of the known another kind of burner of document disclosure, fuel is carried in the secondary air streams of arranging diametrically along circumference around primary air flows really.Yet, this is to realize by the coiling carrier pipe of small cross sections, therefore fuel only the circular passage of feeding secondary air than small size on be disposed in the auxiliary air, thereby dusty fuel can not evenly distribute on the cross section of the full annular transfer passage of auxiliary air.Equally, in this case, fuel is transported in the secondary air streams, thereby can not realize the enrichment of fuel on the perimeter of primary air flows.
The coal burner of air-flow-oxygen (stream-oxygen) gasification that is used for the coal dust that concentrated phase introduces is open at document DD 251476A3 really, wherein, supply by the concentrated phase conveyer mechanism via the cross section, circular passage round the equally distributed fuel of central supply pipe of burning gases and oxidant.Yet in this case, the mixing of the mixture of air-flow-oxidant was only carried out in the gas channel at another of the outside, combustion chamber at that time subsequently.This burner is used for the gasification of fuel and is used to produce the gas of gasification, the reason why Here it is still blows into pulverized coal flow except oxidant stream.Yet this technology can not be used at the burner of the stove that is used for lighting steam boiler.
Summary of the invention
The objective of the invention is to set up such a solution, it makes the low NO of the stove be suitable for lighting steam boiler
XBurner can be equipped with fuel concentrated phase conveyer mechanism, and can not give the low NO of burner
XCombustion characteristics is brought adverse influence.
In front under the situation of the burner of the sort of type of Jie Shaoing, this purpose of the present invention realizes in the following way: the inner space of primary air pipe is connected to or can be connected to the primary air supply line, and the fuel conveying space that forms between primary air pipe and fuel-supply pipe is connected to or can be connected to the supply line that the concentrated phase dusty fuel is supplied to burner.
In front under the situation of the method for the sort of type of Jie Shaoing, this purpose of the present invention realizes in the following way: fuel is carried in burner inside is being formed at ring-shaped channel type fuel conveying space on the primary air pipeline radial outside, and the primary air flows that flows out from the primary air pipeline flows with the fuel after discharging eddy flow state and the fuel conveying space in fuel-supply pipe and mixes.
By the present invention, can set up a kind of like this scheme now, by this scheme, can not be to the low NO of burner
XUnder the situation that combustion characteristics has a negative impact, can dusty fuel be supplied to burner, and fuel is mixed with combustion air by the concentrated phase conveyer mechanism.This realizes by just in time discharging the circular passage that mouth region the place ahead of side forms and be provided with at the burner that leads to stove, in this circular passage, in burner along the particularly dried brown coal coal dust of the conveying powdered fuel of the longitudinal axis of burner.This circular passage is arranged along circumference with one heart round primary air flows in this case.Primary air flows is spiraled, in primary air flows, arrange for this reason and be formed with cyclone at the correct position place, therefore locate in the end of ring-shaped channel type conveyance conduit, primary air flows and the fuel mix of carrying by the concentrated phase conveyer mechanism, so, discharge the mouth end of side at the burner that leads to stove, the radially outer zone of primary air flows is enriched with fuel equably along circumference, perhaps has only fuel in this zone and does not have other.By this method, fuel thereby almost only in the outer circumferential area of primary air flows, carry by the concentrated phase conveyer mechanism.This can not make the low NO of each burner
XCombustion characteristics affects adversely, and on the contrary, as a result of they have also obtained help, promotion and optimization.By the present invention, can keep curling up of primary air flows, and pulverized coal flow or ature of coal stream can be evenly distributed in the primary air flows radially outer edge zone on every side.In addition, because the cyclone that is used for primary air flows is curled up is not arranged on pulverized coal flow or ature of coal stream, therefore these cyclones also can not expose and are subjected to the wearing and tearing of fuel particle, so, the feature of burner of the present invention also is, compare with transfer the fuel in the primary air mixture, reduced wearing and tearing.
For the concentrated phase conveyer mechanism that makes primary air flows curl up and can use the present invention to provide with turbulent burner, advantageously, at least one cyclone is arranged in the inner space of primary air pipe, this is improvements provided by the invention.
In order to operate burner with device such as fuel oil burner rifle, according to improvement of the present invention advantageously, the primary air inner concentric tube be furnished with the core air hose.Then, in this core air hose, can arrange devices such as fuel oil burner rifle known from general burner.
Owing to realize the particularly conveying of dusty fuel of microgranular fuel in the concentrated phase mode, therefore bigger is unnecessary such as conveying cross sections such as cross section, circular passage or pipeline sections for such conveying, thereby, of the present invention another is characterised in that the radial spacing between core air hose and the primary air pipe is greater than the radial spacing between primary air pipe and the fuel-supply pipe.
In this case, advantageous particularly and useful especially be in addition, core air hose are being discharged mouth end on the side extending beyond the primary air pipe on the longitudinal axis direction, enter in the nozzle part opening zone of fuel-supply pipe on discharging side.Therefore, the mixing chamber that is mixed with each other of the fuel stream that allows the primary air flows of curling up and concentrated phase carry forms in the mouth end that the burner that leads to stove is discharged side in burner.Therefore, the geometry of the existing burner before especially can re-using, and by introducing be used to burn the concentrated phase transfer the fuel new primary air pipe and simply they are improved.Then, original available primary air pipe becomes fuel-supply pipe.Needn't carry out bigger to the stove that is provided with burner in addition or cost more structural adaptation step.
Because in order to carry primary air flows, also used relatively large opening section, therefore can arrange a plurality of cyclones there, especially when having used the coaxial core air hose in center, these cyclones are arranged on the outer formation surface of core air hose.Therefore, the present invention also provides in the circular passage of leading to described primary air pipe at a plurality of cyclones of upper edge, outside radial arrangement, and described a plurality of cyclones circumferentially, are preferably the blade ring form on the outer surface of core air hose.
In addition, burning torch is favourable if burner of the present invention also is equipped with the fuel oil burner, for this reason, according to improvement of the present invention, coaxially is furnished with burning torch in the core air hose, is specially fuel oil burner burning torch.
Because especially low NO
XBurner is provided with structure of the present invention, if so these burners also have the SAS Secondary Air Supply pipe in addition and the tertiary air supply pipe is favourable.Therefore feature of the present invention also is, the SAS Secondary Air Supply circumference of cannon bone is around fuel-supply pipe, and the tertiary air supply pipe is around the SAS Secondary Air Supply pipe.
In more favourable improvement, if be furnished with the stabilizing ring that radially extends internally, then especially to low NO at the place, end of the combustion chamber of fuel-supply pipe mouth side
XBurner is favourable.
In the method for advantageous embodiment of the present invention, primary air in being disposed to stove before, in the mouth region of burner, in mixing chamber, mix with combustion flow.Therefore, use the geometry of existing burner and foundation to be used for low NO
XThe possibility of the primary air of burning and the intensive mixture of dusty fuel increases.At last, in this case, also be particularly advantageous if the mixture of air, circulating flue gas or air that air is particularly heated and circulating flue gas is supplied to burner as primary air.
Description of drawings
Fig. 1 shows the low NO of the present invention
XThe end of the combustion chamber side of burner is the cutaway view of axis longitudinally.
The specific embodiment
With reference to the accompanying drawings the present invention is made more detailed exemplary illustration.In the single width accompanying drawing, schematically show in detail low NO
XThe end of the combustion chamber side of burner is the cutaway view of axis longitudinally, this low NO
XBurner arrangement is in the wall of the stove of the steam boiler of especially large-scale energy plant or in the wall of combustion chamber.
The ring-shaped channel type that forms between core air hose 5 and fuel-supply pipe 7 is carried in the cross section, is furnished with the primary air pipe 9 coaxial with core air hose 5 and fuel-supply pipe 7, therefore fuel conveying space 13 is formed ring-shaped channel type and carries the cross section.Stop discharging the terminal place separated by a distance of mouth that the mouth burner terminal and fuel-supply pipe 7 on the side discharges on the side towards the mouth end of the primary air pipe 9 of stove 2, therefore at inner mixing cross section or the mixing chamber 10 of forming of burner with the burner of core air hose 5.The end of the mouth side of primary air pipe 9 roughly is arranged in the layout area of cyclone 15, and these cyclones 15 are at low NO
XUsually be set in the primary air flows under the situation of burner.In the exemplary embodiment, primary air pipe 9 extends in the burner 1 until such degree, that is, primary air pipe 9 is arranged in cyclone regulated 11 that is arranged in SAS Secondary Air Supply pipe 19 and the arrangement zone that is positioned at the cyclone regulated 12 of tertiary air supply pipe 20 in the end of mouth side.In addition, primary air pipe 9 arranges with respect to core air hose 5 and fuel-supply pipe 7, makes radial spacing between primary air pipe 9 and the core air hose 5 greater than the radial spacing between primary air pipe 9 and the fuel-supply pipe 7.Therefore, between the inboard of the outside of primary air pipe 9 and fuel-supply pipe 7, formed ring-shaped channel type fuel conveying space 13.This annular fuel conveying space 13 is connected to or can be connected to a unshowned supply line, by this supply line, fuel pneumatically is supplied to burner 1 by the concentrated phase conveyer mechanism, also pneumatically carries in fuel conveying space 13 in the mode of concentrated phase then.Above-mentioned fuel is microgranular fuel, particularly coal dust, is preferably dried brown coal coal dust.In the carrying out of concentrated phase course of conveying, capacity value is that every kilogram conveying gas is carried 20～90 kilograms coal dust, and transporting velocity is 3～20 meter per seconds under the pressure of＜10 crust.On the direction of burner axis 3, the length that radial spacing between the inboard of the outside of primary air pipe 9 and fuel-supply pipe 7 and consequent fuel carry the channel height of cross section or fuel conveying space 13 radially to extend internally with the tusk of stabilizing ring 14 is roughly suitable.
Carry the cross section that primary air is supplied to burner 1 by the ring-shaped channel type that between the outside of the inboard of primary air pipe 9 and core air hose 5, forms.Primary air can be the air of air, particularly preheating, but also can be circulating flue gas or circulating flue gas and AIR MIXTURES.Carry the primary air of primary air pipeline 18 conveyings in cross section to be transformed into eddy flow by means of regulating cyclone 15 when discharging by having the circular channel formula, these cyclones 15 are arranged in the inside of primary air pipe 9 and are positioned at the place, end that discharges side between core air hose 5 and primary air pipes 9.Cyclone 15 is formed the form of blade ring, and described blade ring is made of the guide vane of arranging in equally distributed mode on the periphery of core air hose 5.
In addition, be known that from general burner burner 1 has around fuel-supply pipe 7 at the auxiliary air pipe 16 of outside coaxial arrangement with next around this auxiliary air Guan Yiyi determining deviation tertiary air pipe 17 of side coaxial arrangement outside.Auxiliary air is supplied to stove 2 by auxiliary air pipe 16, and tertiary air is supplied to stove 2 by tertiary air pipe 17, and this can be from being used to set up multistage low NO
XLearn in the known burner of burning.
In order to control the auxiliary air in primary air, the SAS Secondary Air Supply pipe and the eddy flow that may expect of the tertiary air in the tertiary air supply pipe, provide each cyclone 15,11 and 12 that is arranged within them and has regulating power.Yet, also can form the cyclone 15,11 and/or 12 that does not possess regulating power in each case.
In the process of operation burner 1 of the present invention, coal dust is pneumatically carried by fuel conveying space 13 by the concentrated phase conveyer mechanism along burner axis 3 in burner 1 inside.This fuel conveying space 13 is positioned at the radial outside of primary air pipeline 18, and above-mentioned primary air pipeline is carried therein by primary air and formed by the inner space of primary air pipe 9 and the outer surface that forms of core air hose 5.The primary air of being supplied curls up in the discharging area in primary air pipeline 18 or primary air conveying cross section by means of cyclone 15, and mixes with the concentrated phase fuel stream that leaves fuel conveying space 13.In the mixing cross section or blending space 10 that in this zone of burner 1, forms, realize the mixing fully of primary air and these two kinds of compositions of fuel, formed the enrichment of fuel in the radially outer zone of the air stream that advances, therefore the coal material is transported in the toothed zone of stabilizing ring 14, is disposed to then in the stove 2.The primary air flows that is loaded with coal particles is left burner 1 by this way, and transporting velocity is about 15～25 meter per seconds, preferred 18～20 meter per seconds.
Use burner structure of the present invention, therefore can fuel be delivered in the direct discharging area of burner 1, and fuel and primary air are mixed there by the pneumatic dense phase conveyer mechanism.Only need to realize the required small cross sections of above-mentioned concentrated phase conveyer mechanism.And the cyclone 15 that primary air is curled up is not exposed in the pulverized coal flow, therefore can not be subjected to the wearing and tearing of pulverized coal particle.
Even top embodiment has provided the structure of the ignition-aid burner with center arrangement, yet, the burner that does not possess core air supply pipe and ignition-aid burner can also be provided.Then, set up necessary geometrical condition according to the structure of burner.According to the present invention, in this case only importantly, primary air in inside in the primary air pipe longitudinal axis with respect to burner carry along the center, then under the eddy flow state, mix with the fuel stream of carrying at the radial outside of primary air flows in the concentrated phase mode.
Claims (13)
1. burner, specifically be meant coal burner (1), described burner has fuel-supply pipe (7) and is arranged in primary air pipe (9) in the described fuel-supply pipe (7) with one heart, wherein said primary air pipe (9) is discharged on the side at mouth and is being stopped with the nozzle part opening of described fuel-supply pipe (7) place separated by a distance, and described burner (1) is connected to or can be connected to the supply line of carrying the concentrated phase dusty fuel
It is characterized in that,
The inner space of described primary air pipe (9) is connected to or can be connected to primary air supply line (18), and the fuel conveying space (13) that forms between described primary air pipe (9) and described fuel-supply pipe (7) is connected to or can be connected to the described supply line that the concentrated phase dusty fuel is supplied to described burner.
2. burner according to claim 1 is characterized in that, is furnished with at least one cyclone (15) in the inner space of described primary air pipe (9).
3. burner according to claim 1 is characterized in that, is furnished with core air hose (5) in described primary air pipe (9) with one heart.
4. burner according to claim 3 is characterized in that, the radial spacing between described core air hose (5) and the described primary air pipe (9) is greater than the radial spacing between described primary air pipe (9) and the described fuel-supply pipe (7).
5. burner according to claim 3, it is characterized in that, the mouth end of described core air hose (5) on the discharge side that extends beyond described primary air pipe (9) on the longitudinal axis direction enters in the nozzle part opening zone on the discharge side of described fuel-supply pipe (7).
6. burner according to claim 3, it is characterized in that, in the circular passage of leading to described primary air pipe (9), a plurality of cyclones (15) are arranged in upper edge, outside radial arrangement, described a plurality of cyclones (15) be preferably the blade ring form and on the outer surface of described core air hose (5) circumferentially.
7. burner according to claim 3 is characterized in that, coaxially is furnished with burning torch in described core air hose (5), and described burning torch is specially fuel oil burner burning torch (4).
8. burner according to claim 1 is characterized in that, is provided with the SAS Secondary Air Supply pipe (19) around described fuel-supply pipe (7).
9. burner according to claim 8 is characterized in that, is provided with the tertiary air supply pipe (20) around described SAS Secondary Air Supply pipe (19).
10. burner according to claim 1 is characterized in that, is furnished with the stabilizing ring (14) that radially extends internally at the place, end of the combustion chamber of described fuel-supply pipe (7) mouth side.
11. combustion particle shape fuel method of the preferably dried brown coal coal dust of coal dust particularly in burner (1) with primary air pipe (9) and fuel-supply pipe (7), wherein, described fuel is supplied to described burner (1) by the concentrated phase conveyer mechanism, and by longitudinal axis (3) conveying along described burner of concentrated phase conveyer mechanism in described burner (1) inside, and mix with combustion air
It is characterized in that,
Described fuel is carried in the ring-shaped channel type fuel conveying space (13) on the inner radial outside that is being formed at primary air pipeline (18) of described burner (1), and the fuel of the primary air flows that flows out from described primary air pipeline (18) after with discharge eddy flow state and the described fuel conveying space (13) in described fuel-supply pipe (7) flows and mixes.
12. method according to claim 11 is characterized in that, described primary air in being disposed to stove (2) before, in the mouth region of described burner (1), in blending space (10), mix with described fuel stream.
13. method according to claim 11 is characterized in that, air, circulating flue gas or the air that air is particularly heated and the mixture of circulating flue gas are supplied to described burner (1) as primary air.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007030269.1A DE102007030269B4 (en) | 2007-06-28 | 2007-06-28 | Pulverized coal burner for burning fuel supplied in dense phase conveying |
| DE102007030269.1 | 2007-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101334166A true CN101334166A (en) | 2008-12-31 |
Family
ID=39743804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100997861A Pending CN101334166A (en) | 2007-06-28 | 2008-06-11 | Coal dust burner for igniting fuel fed into thick flow supplies |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20090000532A1 (en) |
| EP (1) | EP2009351B1 (en) |
| JP (1) | JP2009024991A (en) |
| CN (1) | CN101334166A (en) |
| AT (1) | ATE525615T1 (en) |
| AU (1) | AU2008202470B2 (en) |
| CA (1) | CA2632412A1 (en) |
| DE (1) | DE102007030269B4 (en) |
| PL (1) | PL2009351T3 (en) |
| RU (1) | RU2008123264A (en) |
| SI (1) | SI2009351T1 (en) |
| ZA (1) | ZA200805541B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062764A (en) * | 2013-01-25 | 2013-04-24 | 福建永恒能源管理有限公司 | Low-nitrogen powder fuel burner |
| CN103528059A (en) * | 2013-11-12 | 2014-01-22 | 哈尔滨前程科技发展有限公司 | Multifunction substep high-oxygen combustor for industrial furnace |
| CN106594711A (en) * | 2016-12-28 | 2017-04-26 | 浙江宜清环境技术有限公司 | Low-nitrogen combustion device for chain furnace |
| CN107726310A (en) * | 2017-11-22 | 2018-02-23 | 北京神雾电力科技有限公司 | A kind of New-type Swirl Flow coal burner |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JO3598B1 (en) * | 2006-10-10 | 2020-07-05 | Infinity Discovery Inc | Boronic acids and esters as inhibitors of fatty acid amide hydrolase |
| DE102007025051B4 (en) * | 2007-05-29 | 2011-06-01 | Hitachi Power Europe Gmbh | Cabin gas burner |
| DE102010030904B4 (en) | 2010-07-02 | 2017-07-27 | Mitsubishi Hitachi Power Systems Europe Gmbh | Burner with tangential spiral inlet manifold |
| ES2550318T3 (en) | 2010-03-22 | 2015-11-06 | Mitsubishi Hitachi Power Systems Europe Gmbh | Burner with spiral tangential inlet manifold |
| US20110271885A1 (en) * | 2010-05-04 | 2011-11-10 | Hans Tim Chadwick | Method and apparatus for improving combustion efficiency of carbonaceous fuel-fired furnaces by injecting oxyhydrogen gas |
| US20120103237A1 (en) * | 2010-11-03 | 2012-05-03 | Ronny Jones | Tiltable multiple-staged coal burner in a horizontal arrangement |
| KR101065594B1 (en) | 2011-06-13 | 2011-09-19 | 한국기계연구원 | Low nox combustor with air staging |
| GB201114894D0 (en) * | 2011-08-30 | 2011-10-12 | Doosan Power Systems Ltd | Combustion apparatus |
| GB201202907D0 (en) | 2012-02-21 | 2012-04-04 | Doosan Power Systems Ltd | Burner |
| CN102767824B (en) * | 2012-07-06 | 2015-08-05 | 南阳市沧田工程机械有限公司 | A kind of new and effective coal powder burner |
| CN102878553B (en) * | 2012-09-17 | 2015-05-20 | 华中科技大学 | Anti-slag-bonding whirling pulverized coal combustor with low NOx |
| DE102013111504B4 (en) * | 2013-10-18 | 2017-12-07 | Mitsubishi Hitachi Power Systems Europe Gmbh | Method for igniting a power plant burner and suitable pulverized coal burner |
| US10126015B2 (en) | 2014-12-19 | 2018-11-13 | Carrier Corporation | Inward fired pre-mix burners with carryover |
| CN108728168A (en) * | 2017-04-14 | 2018-11-02 | 航天长征化学工程股份有限公司 | Gasification burner |
| CN110566944A (en) * | 2019-09-09 | 2019-12-13 | 内蒙古工业大学 | aggregate drying pulverized coal burner with tooth-shaped stable combustion device and control method thereof |
| DE102021002508A1 (en) * | 2021-05-12 | 2022-11-17 | Martin GmbH für Umwelt- und Energietechnik | Nozzle for injecting gas into an incinerator with a tube and a swirler, flue with such a nozzle and method for using such a nozzle |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US144636A (en) * | 1873-11-18 | Improvement in writing-desks | ||
| DE3238206A1 (en) * | 1982-10-15 | 1984-04-19 | Bergwerksverband Gmbh, 4300 Essen | IGNITION DEVICE FOR CARBON DUST BURNERS |
| DD251476A3 (en) | 1985-11-12 | 1987-11-18 | Freiberg Brennstoffinst | COAL DUST BURNER |
| US4776289A (en) * | 1987-06-18 | 1988-10-11 | Fuel Tech, Inc. | Method and apparatus for burning pulverized solid fuel |
| DE19527083A1 (en) * | 1995-07-25 | 1997-01-30 | Lentjes Kraftwerkstechnik | Process and burner for reducing NO¶x¶ formation from coal dust combustion |
| AT402963B (en) * | 1995-09-07 | 1997-10-27 | Voest Alpine Ind Anlagen | METHOD FOR BURNING FUEL |
| US5743723A (en) * | 1995-09-15 | 1998-04-28 | American Air Liquide, Inc. | Oxy-fuel burner having coaxial fuel and oxidant outlets |
| DE19715373A1 (en) | 1997-04-14 | 1998-10-15 | Wolfgang Kuester | Rotor driven by continuous flow of gas or liquid |
| DE19715973A1 (en) | 1997-04-17 | 1998-10-22 | Krc Umwelttechnik Gmbh | Method and device for conveying and metering dry lignite dust into the combustion chamber of steam generators |
| WO2002012791A1 (en) * | 2000-08-04 | 2002-02-14 | Babcock-Hitachi Kabushiki Kaisha | Solid fuel burner and combustion method using solid fuel burner |
| DE102006011326C5 (en) * | 2006-03-09 | 2015-03-19 | Alstom Technology Ltd. | circular burner |
| JPWO2008143074A1 (en) * | 2007-05-14 | 2010-08-05 | バブコック日立株式会社 | Pulverized coal boiler, pulverized coal combustion method, pulverized coal fired thermal power generation system, and exhaust gas purification system of pulverized coal boiler |
-
2007
- 2007-06-28 DE DE102007030269.1A patent/DE102007030269B4/en active Active
-
2008
- 2008-05-20 JP JP2008132098A patent/JP2009024991A/en active Pending
- 2008-05-23 CA CA002632412A patent/CA2632412A1/en not_active Abandoned
- 2008-06-04 AU AU2008202470A patent/AU2008202470B2/en not_active Ceased
- 2008-06-11 CN CNA2008100997861A patent/CN101334166A/en active Pending
- 2008-06-16 RU RU2008123264/06A patent/RU2008123264A/en not_active Application Discontinuation
- 2008-06-19 EP EP08158605A patent/EP2009351B1/en not_active Not-in-force
- 2008-06-19 SI SI200830490T patent/SI2009351T1/en unknown
- 2008-06-19 AT AT08158605T patent/ATE525615T1/en active
- 2008-06-19 PL PL08158605T patent/PL2009351T3/en unknown
- 2008-06-23 US US12/144,236 patent/US20090000532A1/en not_active Abandoned
- 2008-06-25 ZA ZA2008/05541A patent/ZA200805541B/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062764A (en) * | 2013-01-25 | 2013-04-24 | 福建永恒能源管理有限公司 | Low-nitrogen powder fuel burner |
| CN103062764B (en) * | 2013-01-25 | 2015-11-18 | 福建永恒能源管理有限公司 | A kind of low nitrogen powder fuel combustor |
| CN103528059A (en) * | 2013-11-12 | 2014-01-22 | 哈尔滨前程科技发展有限公司 | Multifunction substep high-oxygen combustor for industrial furnace |
| CN106594711A (en) * | 2016-12-28 | 2017-04-26 | 浙江宜清环境技术有限公司 | Low-nitrogen combustion device for chain furnace |
| CN107726310A (en) * | 2017-11-22 | 2018-02-23 | 北京神雾电力科技有限公司 | A kind of New-type Swirl Flow coal burner |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2009351A2 (en) | 2008-12-31 |
| SI2009351T1 (en) | 2012-01-31 |
| ZA200805541B (en) | 2009-12-30 |
| EP2009351B1 (en) | 2011-09-21 |
| DE102007030269B4 (en) | 2014-07-17 |
| EP2009351A3 (en) | 2009-11-04 |
| CA2632412A1 (en) | 2008-12-28 |
| AU2008202470A1 (en) | 2009-01-15 |
| PL2009351T3 (en) | 2012-02-29 |
| DE102007030269A1 (en) | 2009-01-02 |
| US20090000532A1 (en) | 2009-01-01 |
| JP2009024991A (en) | 2009-02-05 |
| ATE525615T1 (en) | 2011-10-15 |
| AU2008202470B2 (en) | 2010-10-28 |
| RU2008123264A (en) | 2009-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334166A (en) | Coal dust burner for igniting fuel fed into thick flow supplies | |
| US4147116A (en) | Pulverized coal burner for furnace and operating method | |
| AU727761B2 (en) | Method and apparatus for the reduction of NOx generation during coal dust combustion | |
| US20090297996A1 (en) | Fuel injector for low NOx furnace | |
| CN102597629B (en) | Method of combusting particulate solid fuel with a burner | |
| CN105378381B (en) | Central burner for many spray gun burner systems of multi fuel | |
| SE439363B (en) | NITROGEN FUEL BURNER | |
| AU2005254306B2 (en) | Pneumatic conveying device for bulk material | |
| EP2751484B1 (en) | Combustion apparatus with indirect firing system | |
| CN101772675A (en) | Coal burner assembly | |
| KR100610725B1 (en) | Round burner for burning pulverized fuel | |
| JPS588908A (en) | Method of burning pulverized coal and apparatus therefor | |
| US10060620B2 (en) | Burner | |
| JP2003004208A5 (en) | ||
| DK2369230T3 (en) | Burns with tangential spiralindløbsrørbøjning | |
| CZ302794A3 (en) | Burner for burning brown coal dust | |
| RU2202739C2 (en) | Method and system for pulverizing and burning solid fuel | |
| CN108369000A (en) | Burner for kiln | |
| JPS6030902A (en) | Pulverized coal combustion device | |
| JP2000329470A (en) | Tentative-burning method and facility | |
| WO2017212256A1 (en) | Burner | |
| CN104603538A (en) | Pulverized fuel-oxygen burner | |
| NZ232752A (en) | Cylindrical furnace for wood drying with coaxial inner tube extending down from horizontal partitioning wall for efficient combustion of wood flour | |
| TH37295A (en) | Methodology and burners for introducing fuel into the furnace. | |
| TH21480B (en) | Methodology and burners for introducing fuel into the furnace. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081231 |