CN107726310A - A kind of New-type Swirl Flow coal burner - Google Patents
A kind of New-type Swirl Flow coal burner Download PDFInfo
- Publication number
- CN107726310A CN107726310A CN201711174079.XA CN201711174079A CN107726310A CN 107726310 A CN107726310 A CN 107726310A CN 201711174079 A CN201711174079 A CN 201711174079A CN 107726310 A CN107726310 A CN 107726310A
- Authority
- CN
- China
- Prior art keywords
- air channel
- secondary air
- air duct
- new
- swirl flow
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 75
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 15
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036651 mood Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method 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
- F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/01001—Pulverised solid fuel burner with means for swirling the fuel-air mixture
Abstract
The present invention relates to a kind of New-type Swirl Flow coal burner, mainly include：Air channel, secondary air duct, pulverized coal concentrator and air channel three times, wherein, an air channel is connected by the pulverized coal concentrator with the air channel three times；The secondary air duct is arranged at the internal vent in an air channel, and is connected with the pulverized coal concentrator, and the secondary air duct includes：Contour stealth secondary air duct and inward eddy secondary air duct, wherein, the outlet front end side wall of the contour stealth secondary air duct is lug boss, and adjusting yoke is provided with the inwall of the lug boss；The outlet front end of the inward eddy secondary air duct is that taper necking is provided with the swirl vane being connected with the adjusting yoke on the outer wall of the inward eddy secondary air duct.The device realizes breeze airflow air-coal separating using Pulverized Coal Concentration device simple in construction, and the problems such as ensure the efficient steady combustion of low-volatite coal, reduce the discharge of nitrogen oxides while ensure burner hearth not slagging and produce high temperature corrosion.
Description
Technical field
The invention belongs to field of combustion technology, it is related to a kind of New-type Swirl Flow coal burner, more particularly to a kind of radial direction is dense
The vortex burner of light formula Secondary Air multi-level hierarchical formula.
Background technology
Power industry is the energy industry on basis, and current coal-fired thermal power generation accounts for more than the 70% of China's gross generation.Mesh
Preceding China is just greatly developing nuclear energy power generation and various new energy power generation technologies, rich coal resources in China, but is built by nuclear power station
If the cycle is long and the factors such as generation of electricity by new energy cost is higher, single-machine capacity is small influence, so within following one section of long period, combustion
Coal thermal power generation is still the major way that China generates electricity.High-efficiency low-pollution coal-fired power generator set is the development of coal-fired thermal power generation
Direction, realize while burning efficiently, low NOx（NOx）, Anti-slagging, high temperature corrosion resistance, low-load combustion-stabilizing ability be strong, coal
The functions such as kind of adaptability is good.But generally existing coal adaptability is not strong（It is difficult to the anthracite meager coal suitable for low volatile）, it is high
The problems such as temperature corrosion and more serious, NOx abatement is inefficient, partial combustion burner central tube serious wear coking.Power plant of China
Changeable with coal, the power plant of low volatile coal increasingly increases, increasingly strict plus environmental regulation（It is required that nitrogen can be greatly lowered
Emissions of oxides）, develop a kind of New-type Swirl Flow coal burner and be particularly important with adapting to these requirements.
The content of the invention
The present invention is in view of the shortcomings of the prior art, it is proposed that a kind of new and effective, low nitrogen, coal are applied widely and safe
The vortex burner of operation, the device realize primary and secondary wind breeze airflow using Pulverized Coal Concentration device simple in construction
Air-coal separating, the air channel three times of two secondary air channels and one is employed, to ensure the efficient steady combustion of low-volatite coal, further
Reduce NOx discharge while ensure burner hearth not slagging and produce high temperature corrosion etc., so as to realize low volatile coal burning boiler machine
Efficient, the low nitrogen of group and safe operation.
To solve one of above-mentioned technical problem, the technical scheme that the present invention takes is：
The present invention proposes a kind of New-type Swirl Flow coal burner, including：Air channel, secondary air duct, pulverized coal concentrator and three
Secondary air channel, wherein, an air channel is connected by the pulverized coal concentrator with the air channel three times；The secondary air duct is set
It is placed at the internal vent in an air channel, and is connected with the pulverized coal concentrator, the secondary air duct includes：Contour stealth
Secondary air duct and inward eddy secondary air duct, wherein, the outlet front end side wall of the contour stealth secondary air duct is lug boss, described
The inwall of lug boss is provided with adjusting yoke；The outlet front end of the inward eddy secondary air duct is taper necking, is revolved for strengthening
Intensity of flow, the swirl vane being connected with the adjusting yoke is provided with the outer wall of the inward eddy secondary air duct, by described
Adjusting yoke adjusts the displacement of the swirl vane, changes swirl strength.
Further, in the pipe of the outlet front end of the contour stealth secondary air duct and the outlet front end of inward eddy secondary air duct
Steady combustion ring is provided between wall.
Further, the outlet in an air channel is taper necking, and the import in the air channel three times is taper enlarging, institute
The taper necking for stating an air channel is connected by the pulverized coal concentrator with the taper enlarging.
Further, the external diameter in an air channel is less than the external diameter in the air channel three times.
Further, the front end of the lug boss is taper enlarging, and rear end is taper necking.
Further, the air inlet of the secondary air duct extends to the outside in an air channel.
Further, the pulverized coal concentrator is sphenoid pulverized coal concentrator, and its front end is provided with sphenoid, by breeze airflow
Dense and outside two strands of light air-flows centered on separation.
Further, the steady combustion ring is triangular tooth.
Further, in addition to：Snap ring, it is arranged on the inwall of the lug boss, and positioned at the swirl vane
Left side, one end of the adjusting yoke are connected with the snap ring, and the other end is connected with the swirl vane.
Further, in addition to：Burning torch, the burning torch are arranged in the air channel three times with certain angle of inclination
On, the spout in the air channel three times is connected with external boiler, and the air quantity in the air channel three times can be adjusted by inlet baffle.
The present invention comprises at least following beneficial effect：
1）The present invention surely fires the taper enlarging of ring and inward eddy secondary air duct using wedge pulverized coal concentrator, triangular tooth, real
Show interior dense outer light coal dust radial direction bias combustion, contribute to the efficient burning and low-load combustion-stabilizing of low volatile pulverized coal；
2）The present invention uses adjusting yoke and snap ring, the displacement of flexible modulation swirl vane, changes swirl strength, reaches and change
Fire point and the purpose of fire intensity, adapt to the change of coal and load；
3）The present invention sets triangular tooth surely to fire ring, and standing vortex is formed after tooth, beneficial to catching fire；
4）The present invention forms the high temperature recirculation zone of large area, strengthens thick coal culm stream and high temperature reflux by setting air channel three times
The mixing of flue gas in area, be advantageous to coal dust, particularly low volatile pulverized coal catch fire and stable burning, while add dense powder stream
Circumferential length, further strengthen mixing and catch fire and stablize burning；
5）The present invention is directly blown into, overlap shows when avoiding underrun by setting air channel three times using direct current coal dust wind
As being advantageous to low-load combustion-stabilizing；And help pressing close to formation selective oxidation atmosphere at boiler water wall, so as to effective
Water-cooling wall slagging and High Temperature Corrosion are avoided, improves the security of operation；
6）Present invention employs the air channel three times of two secondary air channels and one, it is radially multistage to realize burner region
Fractional combustion, form reproducibility catch fire and combustion atmosphere, help significantly to reduce the discharge of nitrogen oxides；
7）The outlet front end side wall of contour stealth secondary air duct of the present invention is designed as the projection formed by taper enlarging and taper necking
Portion, the time that secondary coal dust wind is mixed into a coal dust general mood stream is postponed, further reduced the discharge of nitrogen oxides；
8）Burner of the present invention eliminates the central tube of conventional burners, and avoiding influences burning effect because of central tube serious wear
The problem of rate, for the pulverized-coal fired boiler using New-type Swirl Flow coal burner of the present invention, there is high combustion efficiency, coal
With load adaptability is strong, flexible adjustment, can depth abjection nitrogen oxides and it is safe and reliable to operation the features such as.
Brief description of the drawings
Fig. 1 is the structural representation of burner of the present invention.
Wherein, an air channel 1；The outlet 101 in air channel；Contour stealth secondary air duct 2；Lug boss 201；Adjusting yoke
202；Inward eddy secondary air duct 3；The outlet front end 301 of inward eddy secondary air duct；Swirl vane 302；Triangular tooth surely fires ring 4；
Air channel 5 three times；The import 501 in air channel three times；Pulverized coal concentrator 6；Sphenoid 601；Burning torch 7.
Embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, without being understood that
For limitation of the present invention.Unreceipted particular technique or condition in embodiment, according to the skill described by document in the art
Art or condition are carried out according to product description.
According to an embodiment of the invention, Fig. 1 is the structural representation of burner of the present invention, shown in reference picture 1, institute of the present invention
Stating burner includes：Air channel 1, secondary air duct, three times pulverized coal concentrator 6, air channel 5, snap ring and burning torch 7.
According to an embodiment of the invention, shown in reference picture 1, the outlet 101 in an air channel is taper necking, described three
The import 501 in secondary air channel is taper enlarging, the taper necking in an air channel by the pulverized coal concentrator with it is described three times
The taper enlarging in air channel is connected.
According to an embodiment of the invention, shown in reference picture 1, the inside that the secondary air duct is arranged at an air channel goes out
At mouthful, and it is connected with the pulverized coal concentrator, the secondary air duct includes：Contour stealth secondary air duct 2 and inward eddy Secondary Air
Road 3, wherein, the outlet front end side wall of the contour stealth secondary air duct is lug boss 201, and the front end of the lug boss is expanded for taper
Mouthful, rear end is taper necking, has effectively postponed the time that secondary coal dust wind is mixed into a coal dust general mood stream, has further reduced nitrogen
The discharge of oxide；Snap ring and adjusting yoke 202 are provided with the inwall of the lug boss；The inward eddy secondary air duct goes out
Mouthful front end be taper necking, for strengthening swirl strength, on the outer wall of the inward eddy secondary air duct provided with and the regulation
The connected swirl vane 302 of pull bar, it is specifically arranged at the right side of the snap ring, one end of the adjusting yoke and the snap ring
It is connected, the other end is connected with the swirl vane, and the displacement of the swirl vane is adjusted by the adjusting yoke, makes its left and right
It is mobile, change the distance between taper necking of the swirl vane and the lug boss rear end, and then change the eddy flow of air-flow
Intensity, reach and change ignition point and the purpose of fire intensity, adapt to the change of coal and load.
According to some embodiments of the present invention, shown in reference picture 1, in the outlet front end of the contour stealth secondary air duct and interior
Ring 4 is surely fired provided with triangular tooth between the tube wall of the outlet front end in swirl secondary air road, standing vortex is formed after tooth, beneficial to catching fire.
According to some embodiments of the present invention, the taper of taper enlarging and taper necking of the present invention is unrestricted,
Can specifically it be set according to coal.
According to some embodiments of the present invention, secondary air duct of the present invention is connected with an air channel, a dant
The air inlet of the air inlet of powder wind and secondary coal dust wind is inconsistent, coal dust wind is provided respectively from different air inlets, by one section
After time, a coal dust wind and secondary coal dust wind are mixed, by the pulverized coal concentrator, by breeze airflow in radial direction side
To interior dense outer two strands of light air-flows are divided into, into the air channel three times, described is three times thick coal culm gas at the center inside air channel
Stream, outside is thin powdered coal air-flow, will be passed through described in the center in air channel three times manage everywhere as thick coal culm air-flow, be advantageous to low volatile
Quick ignition and the efficient stable burning of coal dust；It is understood that a coal dust wind of the present invention is in an air channel
In flowed from the place that wind speed is big or eddy flow is strong, can be mixed, can also directly be entered into the secondary air duct
Enter the pulverized coal concentrator, shown in reference picture 1, the air inlet of secondary air duct of the present invention extends to the outer of an air channel
Portion.
According to an embodiment of the invention, shown in reference picture 1, pulverized coal concentrator of the present invention is sphenoid Pulverized Coal Concentration
Device, its front end are provided with sphenoid 601, dense and outside two strands of light air-flows centered on breeze airflow is separated, into it is described three times
Air channel.
According to an embodiment of the invention, shown in reference picture 1, the external diameter in air channel three times of the present invention is designed as more than described
The external diameter in air channel, and its area as far as possible greatly, forms the height of large area on the premise of meeting and meeting burning process
Warm recirculating zone, strengthen the mixing of the flue gas in thick coal culm stream and high temperature recirculation zone in the burner hearth from external boiler, be advantageous to coal
Powder, particularly low volatile pulverized coal catch fire and stable burning, while add the circumferential length of dense powder stream, further strengthen mixed
Conjunction is caught fire and stablized burning.
According to an embodiment of the invention, shown in reference picture 1, burning torch of the present invention is arranged in certain angle of inclination
Described three times on air channel, the spout in the air channel three times is connected with external boiler.
According to some embodiments of the present invention, the present invention is set air channel three times, is directly blown into, avoided using direct current coal dust wind
Finning during underrun, is advantageous to low-load combustion-stabilizing；And help pressing close to form part at boiler water wall
Oxidizing atmosphere, so as to efficiently avoid water-cooling wall slagging and High Temperature Corrosion, improve the security of operation；The present invention
The air channel three times of two secondary air channels and one is employed, first passes through the coal dust wind that an air channel is passed through normal temperature, is passed through
Eddy flow temperature raises after crossing the secondary air duct and pulverized coal concentrator, then is passed through secondary coal dust wind by the secondary air duct, increases
The concentration of strong breeze airflow and fire intensity, make coal dust wind reach ignition point, starting ignition rifle, are burnt, finally directly logical
Enter coal dust wind three times, further strengthen burning, coal dust wind is fully burnt, realize the multistage of burner region radially
Fractional combustion, form reproducibility catch fire and combustion atmosphere, help significantly to reduce the discharge of nitrogen oxides.
According to some embodiments of the present invention, a coal dust wind of the present invention, secondary coal dust wind and coal dust wind point three times
The independent bellows that Jing Guo be connected to the corresponding air channel are blown into, and by adjusting the inlet baffle of bellows, can adjust three
The air quantity ratio in individual air channel, you can to adjust current rate.
Inventor has found, according to burner of the present invention, the device is real using Pulverized Coal Concentration device simple in construction
Existing primary and secondary wind breeze airflow air-coal separating, the air channel three times of two secondary air channels and one is employed, to ensure low wave
Hair divides the efficient steady combustion of coal, further reduces NOx discharge while ensure burner hearth not slagging and produce high temperature corrosion etc., so as to
Realize efficient, low nitrogen and the safe operation of low volatile coal burning boiler unit.
In the present invention, unless otherwise clearly defined and limited, the term such as term " connected ", " connection " should do broad sense reason
Solution, for example, it may be fixedly connected or be detachably connected, or integrally；Can be mechanical connection or electricity
Connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two element internals connection or two
The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the description of the invention, it is to be understood that the orientation or position of the instruction such as term " upper and lower " " left and right ", " front and rear "
It is based on orientation shown in the drawings or position relationship to put relation, is for only for ease of the description present invention and simplifies description, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be any
Combined in an appropriate manner in individual or multiple embodiments or example.In addition, in the case of not conflicting, the technology of this area
Different embodiments or example and the feature of different embodiments or example described in this specification can be combined by personnel
And combination.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification, meanwhile, for those of ordinary skill in the art, the think of according to the application
Think, in specific embodiments and applications there will be changes.
Claims (10)
- A kind of 1. New-type Swirl Flow coal burner, it is characterised in that including：Air channel, secondary air duct, pulverized coal concentrator and three Secondary air channel, wherein,Air channel is connected by the pulverized coal concentrator with the air channel three times；The secondary air duct is arranged at the internal vent in an air channel, and is connected with the pulverized coal concentrator, described Secondary air duct includes：Contour stealth secondary air duct and inward eddy secondary air duct, wherein,The outlet front end side wall of the contour stealth secondary air duct is lug boss, and regulation is provided with the inwall of the lug boss and is drawn Bar；The outlet front end of the inward eddy secondary air duct is taper necking, secondary in the inward eddy for strengthening swirl strength The outer wall in air channel is provided with the swirl vane being connected with the adjusting yoke, and the swirl vane is adjusted by the adjusting yoke Displacement, change swirl strength.
- 2. New-type Swirl Flow coal burner according to claim 1, it is characterised in that in the contour stealth secondary air duct Export and steady combustion ring is provided between front end and the tube wall for exporting front end of inward eddy secondary air duct.
- 3. New-type Swirl Flow coal burner according to claim 1, it is characterised in that the outlet in an air channel is cone Shape necking, the import in the air channel three times is taper enlarging, and the taper necking in an air channel passes through the pulverized coal concentrator It is connected with the taper enlarging.
- 4. New-type Swirl Flow coal burner according to claim 3, it is characterised in that the external diameter in an air channel is less than The external diameter in the air channel three times.
- 5. New-type Swirl Flow coal burner according to claim 1, it is characterised in that the front end of the lug boss is taper Enlarging, rear end are taper necking.
- 6. New-type Swirl Flow coal burner according to claim 1, it is characterised in that the air inlet of the secondary air duct prolongs Extend the outside in an air channel.
- 7. New-type Swirl Flow coal burner according to claim 1, it is characterised in that the pulverized coal concentrator is sphenoid Pulverized coal concentrator, its front end are provided with sphenoid, dense centered on breeze airflow is separated and outside two strands of light air-flows.
- 8. New-type Swirl Flow coal burner according to claim 2, it is characterised in that the steady combustion ring is triangular tooth.
- 9. New-type Swirl Flow coal burner according to claim 1, it is characterised in that also include：Snap ring, it is arranged on institute State on the inwall of lug boss, and be connected positioned at the left side of the swirl vane, one end of the adjusting yoke with the snap ring, separately One end is connected with the swirl vane.
- 10. New-type Swirl Flow coal burner according to claim 1, it is characterised in that also include：Burning torch, the point Firelock is arranged in described three times on air channel with certain angle of inclination, and the spout in the air channel three times is connected with external boiler, institute Stating the air quantity in air channel three times can be adjusted by inlet baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174079.XA CN107726310A (en) | 2017-11-22 | 2017-11-22 | A kind of New-type Swirl Flow coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174079.XA CN107726310A (en) | 2017-11-22 | 2017-11-22 | A kind of New-type Swirl Flow coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107726310A true CN107726310A (en) | 2018-02-23 |
Family
ID=61218033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174079.XA Pending CN107726310A (en) | 2017-11-22 | 2017-11-22 | A kind of New-type Swirl Flow coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107726310A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB905873A (en) * | 1959-06-30 | 1962-09-12 | Babcock & Wilcox Co | Improvements in or relating to pulverised coal burners |
| DD289323A5 (en) * | 1989-11-30 | 1991-04-25 | Energie- U. Umwelttechnik Gmbh,De | METHOD AND DEVICE FOR OPERATING A COMBUSTION CHAMBER |
| JPH0420702A (en) * | 1990-05-14 | 1992-01-24 | Babcock Hitachi Kk | Pulverized coal burner |
| CN1206808A (en) * | 1997-07-24 | 1999-02-03 | 株式会社日立制作所 | Burner for pulverized coal |
| CN101334166A (en) * | 2007-06-28 | 2008-12-31 | 日立动力欧洲有限公司 | Coal dust burner for igniting fuel fed into thick flow supplies |
| CN201475997U (en) * | 2009-08-31 | 2010-05-19 | 中国计量学院 | Coal dust burner with self-stabilizing capability, three-stage air-distribution and low NOx content |
| CN106838895A (en) * | 2017-03-06 | 2017-06-13 | 中国华能集团清洁能源技术研究院有限公司 | A kind of low-load combustion-stabilizing once-through type burner |
| CN207661763U (en) * | 2017-11-22 | 2018-07-27 | 北京神雾电力科技有限公司 | A kind of New-type Swirl Flow coal burner |
-
2017
- 2017-11-22 CN CN201711174079.XA patent/CN107726310A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB905873A (en) * | 1959-06-30 | 1962-09-12 | Babcock & Wilcox Co | Improvements in or relating to pulverised coal burners |
| DD289323A5 (en) * | 1989-11-30 | 1991-04-25 | Energie- U. Umwelttechnik Gmbh,De | METHOD AND DEVICE FOR OPERATING A COMBUSTION CHAMBER |
| JPH0420702A (en) * | 1990-05-14 | 1992-01-24 | Babcock Hitachi Kk | Pulverized coal burner |
| CN1206808A (en) * | 1997-07-24 | 1999-02-03 | 株式会社日立制作所 | Burner for pulverized coal |
| CN101334166A (en) * | 2007-06-28 | 2008-12-31 | 日立动力欧洲有限公司 | Coal dust burner for igniting fuel fed into thick flow supplies |
| CN201475997U (en) * | 2009-08-31 | 2010-05-19 | 中国计量学院 | Coal dust burner with self-stabilizing capability, three-stage air-distribution and low NOx content |
| CN106838895A (en) * | 2017-03-06 | 2017-06-13 | 中国华能集团清洁能源技术研究院有限公司 | A kind of low-load combustion-stabilizing once-through type burner |
| CN207661763U (en) * | 2017-11-22 | 2018-07-27 | 北京神雾电力科技有限公司 | A kind of New-type Swirl Flow coal burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101725969B (en) | Low-NOx pulverized coal burner | |
| CN201662062U (en) | Cyclone pulverized coal burner | |
| CN101280921B (en) | Vortex combustor of coal fines circumferential direction concentration sectional stopping whorl | |
| CN102434878A (en) | Three-layer secondary air low nitrogen oxide swirling burner | |
| CN103615717A (en) | Novel oxygen enrichment tiny-oil ignition and ultralow load stable-combustion combustor | |
| CN102679338A (en) | Efficient coal dust combustor for reducing smoke NOx content | |
| CN104197326A (en) | Novel swirl pulverized coal burner | |
| WO2015103832A1 (en) | Classification strengthened low nox pulverized coal burner | |
| CN201496957U (en) | Cyclone pulverized coal burner | |
| CN105114951A (en) | Tail edge backflow dual-classification low-nitrogen-oxygen gas burner | |
| CN102679337A (en) | Cyclone combustor with adjustable flame shape and mixing strength | |
| CN201137936Y (en) | Cyclone coal powder burner | |
| CN202002096U (en) | Water-coal-slurry low-nitrogen swirl burner | |
| CN101988698A (en) | Cyclone pulverized coal burner | |
| CN102878553B (en) | Anti-slag-bonding whirling pulverized coal combustor with low NOx | |
| CN202647746U (en) | Real-time adjustable novel swirl burner | |
| CN107477572A (en) | Using the center feeding rotational flow coal dust burner of separation Secondary Air bilayer jet | |
| CN201606876U (en) | Low-NOx coal burner | |
| CN109737393A (en) | Big Pulverized Coal Concentration is than postponing hybrid vortex burner | |
| CN207661763U (en) | A kind of New-type Swirl Flow coal burner | |
| CN2699136Y (en) | Vortex pulverized coal burner | |
| CN208025504U (en) | A kind of coal burner | |
| CN208457952U (en) | A kind of annular return type turbulent burner of avoidable scaling loss | |
| CN208418734U (en) | A kind of low-NOx combustor for natural gas and coal dust | |
| CN107726310A (en) | A kind of New-type Swirl Flow coal burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |