CN106196044B - Low NO is set at a kind of bottom suitable for significantly load adjustment - Google Patents
Low NO is set at a kind of bottom suitable for significantly load adjustment Download PDFInfo
- Publication number
- CN106196044B CN106196044B CN201610783158.XA CN201610783158A CN106196044B CN 106196044 B CN106196044 B CN 106196044B CN 201610783158 A CN201610783158 A CN 201610783158A CN 106196044 B CN106196044 B CN 106196044B
- Authority
- CN
- China
- Prior art keywords
- outlet
- diameter portion
- secondary air
- wide diameter
- air
- 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.)
- Active
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to a kind of bottoms suitable for significantly load adjustment to set low NO, including flame of centre regulation pipe, primary air piping, secondary air channel and the auxiliary combustion equipment three times being successively nested with from the inside to the outside, the import of primary air piping is equipped with coal dust flow-stabilizing mechanism, the outlet of primary air piping is equipped with First air cyclone, the import of secondary air channel is equipped with air premixing apptss, the outlet of secondary air channel is equipped with Secondary Air cyclone, the outlet of secondary air channel is additionally provided with steady flame device, and the air outlet of auxiliary combustion equipment is connected to steady flame device three times.The reasonable Arrangement that the present invention passes through structure, fractional combustion can be achieved, greatly improve the load regulation range of burner, improve the adaptability to industrial different operating conditions, using low-NO_x combustion technology, the initial ejection index of its burner is far below national regulation concentration of emission, reaches the beneficial effect of energy-efficient, emission reduction and environmental protection.
Description
Technical field
The present invention relates to a kind of bottoms suitable for significantly load adjustment to set low NO, belongs to coal burning system technology neck
Domain.
Background technique
All there are the feelings of high underrun in actual moving process in industrial boilers in China and middle-size and small-size heating boiler
Condition, especially Industrial Boiler need constantly to adjust boiler load according to industrial production variation, guarantee that the supply of its thermal energy is not exceeded.
The industry coal-boiler system in China is smaller in the adaptation range of load at present, generally in the load of 50%-80%
Adjusting range.For production unit because output reduces, it is frequently present of boiler Ultra-low load operation, the measure that at this moment boiler is taken
Generally frequent start and stop boiler or banking fire operation (chain furnace).The frequent start-stop of boiler will lead to boiler energy consumption and greatly increase,
Emissions data is unstable, reduces the service life of equipment.Therefore the burner that exploitation is suitable for a wide range of Load Regulation has significantly
Economic benefit and environmental benefit.
Currently available technology is that for coal-burning boiler in underload, the outlet size of burner is fixed, attenuating coal dust amount
Need to reduce air flow rate proportioning accordingly, each air duct speed can all reduce accordingly when underload, will lead to the coal dust of spiral-flow type
Burner causes coal dust burnout rate poor, and localized hyperthermia easy to form, NOx is caused substantially to generate because of swirl strength deficiency.It is high
When load operation, because burner outlet wind speed is fast, swirl strength is big, and high temperature gases recirculating formation flame of centre temperature is excessively high, holds
Easily cause coking and the problems such as heating power nitrogen is unable to control, NOx emission is exceeded.
In consideration of it, the present inventor carries out in-depth study to the above problem, there is this case generation then.
Summary of the invention
The purpose of the present invention is to provide a kind of adaptability that can improve boiler reply load adjustment, energy-efficient, ring
It protects, low NO is set at the bottom for being suitable for significantly load adjustment of simple structure.
In order to achieve the above object, the present invention uses such technical solution:
Low NO is set at a kind of bottom suitable for significantly load adjustment, including the central flame being successively nested with from the inside to the outside
Flame regulation pipe, primary air piping, secondary air channel and auxiliary combustion equipment three times, the import of primary air piping are equipped with coal dust flow-stabilizing mechanism, and one
The outlet of secondary air hose is equipped with First air cyclone, and the import of secondary air channel is equipped with air premixing apptss, and the outlet of secondary air channel is set
There is Secondary Air cyclone, the outlet of secondary air channel is additionally provided with steady flame device, and the air outlet of auxiliary combustion equipment and steady flame device connect three times
It is logical.
As a kind of preferred embodiment of the invention, the steady flame device includes the first wide diameter portion in cone cylinder shape, and first expands
Diameter portion is set to first end and second end, the inner wall of the first end of the first wide diameter portion and the secondary air channel along axial both ends
Linking, the first wide diameter portion is gradually increased from first end to second end internal diameter.
As a kind of preferred embodiment of the invention, the inner wall of first wide diameter portion and the angle of horizontal plane are 40 ° -60 °.
As a kind of preferred embodiment of the invention, the steady flame device further includes the second wide diameter portion in cone cylinder shape, and second
Wide diameter portion is set to third end and the 4th end, the third end of the second wide diameter portion and first wide diameter portion along axial both ends
Second end linking, the second wide diameter portion are gradually increased from third end to the 4th end internal diameter.
As a kind of preferred embodiment of the invention, the outer wall of the outlet of the auxiliary combustion equipment three times from second wide diameter portion
It is through to inner wall.
As a kind of preferred embodiment of the invention, the air premixing apptss include secondary fresh wind channel and secondary back
Wind channel, the outlet in secondary fresh wind channel and the outlet in secondary back wind channel are connected to the secondary air channel.
As a kind of preferred embodiment of the invention, the import of the auxiliary combustion equipment three times is equipped with fresh wind channel and three three times
Secondary reflux wind channel, the outlet in fresh wind channel and the outlet in wind channel of flowing back three times connect with the auxiliary combustion equipment three times three times
It is logical.
As a kind of preferred embodiment of the invention, the coal dust flow-stabilizing mechanism has a spherical inner cavity, spherical interior intracavitary to be equipped with
Stabilier, the spherical inner cavity are equipped with powder inlet and meal outlet, and powder inlet be connected to coal dust feeding mechanism, meal outlet with it is described once
Air hose connection.
As a kind of preferred embodiment of the invention, temperature sensor is equipped in the steady flame device.
As a kind of preferred embodiment of the invention, the steady flame device is equipped with flame-observing hole.
Using technical solution of the present invention, coal dust flow-stabilizing mechanism is used for the coal dust in a balanced powder feeding pipes, guarantees coal
After powder sprays, concentration distribution is more average in burner hearth, solves the problems such as flame is eccentric, First air cyclone is for making First air
Eddy flow is formed, allows the high-temperature flue gas after burning to form reflux by the effect of eddy flow central negative pressure, ignite subsequent coal dust, stablizes combustion
It burns；Secondary Air cyclone rises for making Secondary Air form eddy flow and First air cyclone with turning to and extends the coal dust firing time
Effect can be passed through fresh air and reflux wind by air premixing apptss, and is sufficiently mixed, and make the gas into burner
Oxygen amount is stablized, and provides the stability of burning and provides the inhibition control generated to NOx, flame of centre regulation pipe can be passed through reflux wind
Or fresh air controls the length of flame for adjusting burner flame central negative pressure；Steady flame device, which has, absorbs simultaneously accumulation of heat
Function, and stable heat radiation is provided for flame root, the stability of flame when greatly improving underload, it is ensured that the smooth quilt of coal dust
It ignites；Auxiliary combustion equipment provides high speed combustion-supporting gas three times, provides combustion air for burning, the present invention by the reasonable Arrangement of structure,
Fractional combustion can be achieved, greatly improve the load regulation range of burner, improve the adaptability to industrial different operating conditions, use
Low-NO_x combustion technology, the initial ejection index of burner are far below national regulation concentration of emission, reach energy-efficient, emission reduction and
The beneficial effect of environmental protection.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure:
1- primary air piping 11- coal dust flow-stabilizing mechanism
12- First air cyclone 2- secondary air channel
21- bis- times fresh wind channel 22- secondary back wind channels
23- Secondary Air cyclone 3- auxiliary combustion equipment three times
Fresh wind channel 32-'s 31- flows back wind channel three times three times
The steady flame device 41- temperature sensor of 4-
42- flame-observing hole the first wide diameter portion of 43-
44- the second wide diameter portion 5- flame of centre regulation pipe
Specific embodiment
In order to further explain the technical solution of the present invention, being described in detail with reference to the accompanying drawing.
Referring to Fig.1, low NO is set at a kind of bottom suitable for significantly load adjustment, including is successively nested with from the inside to the outside
Flame of centre regulation pipe 5, primary air piping 1, secondary air channel 2 and auxiliary combustion equipment 3 three times, the import of primary air piping 1 is equipped with coal
Powder flow-stabilizing mechanism 11, the outlet of primary air piping 1 are equipped with First air cyclone 12, and the import of secondary air channel 2 is filled equipped with air pre-mixing
It sets, the outlet of secondary air channel 2 is equipped with Secondary Air cyclone 23, and the outlet of secondary air channel 2 is additionally provided with steady flame device 4, combustion-supporting three times
The air outlet of device 3 is connected to steady flame device 4.Wherein, flame of centre regulation pipe 5 is located at burner axis center, the adjusting
Pipe can be passed through reflux wind or fresh air, for adjusting burner flame central negative pressure, control the length of flame.
As a kind of preferred embodiment of the invention, the steady flame device 4 includes the first wide diameter portion 43 in cone cylinder shape, and first
Wide diameter portion 43 is set to first end and second end, the inner wall of the first end of the first wide diameter portion 43 and described two along axial both ends
The linking of secondary air hose 2, the first wide diameter portion 43 are gradually increased from first end to second end internal diameter.
As a kind of preferred embodiment of the invention, the inner wall of first wide diameter portion 43 and the angle of horizontal plane are (i.e. in figure
Angle A) it is 40 ° -60 °.
As a kind of preferred embodiment of the invention, the steady flame device 4 further includes the second wide diameter portion 44 in cone cylinder shape, the
One wide diameter portion 43 and the second wide diameter portion 44 are structure as a whole, and the second wide diameter portion 44 is set to third end and the along axial both ends
Four ends, the third end of the second wide diameter portion 44 are connected with the second end of first wide diameter portion 43, and the second wide diameter portion 44 is from third end
It is gradually increased to the 4th end internal diameter.
As a kind of preferred embodiment of the invention, the air premixing apptss include secondary fresh wind channel 21 and secondary returning
Wind channel 22 is flowed, the outlet in secondary fresh wind channel 21 and the outlet in secondary back wind channel 22 connect with the secondary air channel 2
It is logical.Fresh air and reflux wind enter from secondary fresh wind channel 21 and secondary back wind channel 22 respectively and are sufficiently mixed
It closes, stablizes the gas oxygen amount into burner, the stability and offer for providing burning control the inhibition that NOx is generated.
As a kind of preferred embodiment of the invention, the import of the auxiliary combustion equipment three times 3 is equipped with fresh wind channel 31 three times
Three times flow back wind channel 32, three times fresh wind channel 31 outlet and three times reflux wind channel 32 outlet with it is described three times
Auxiliary combustion equipment 3 is connected to.As a kind of preferred embodiment of the invention, the outlet (i.e. spout) of the auxiliary combustion equipment three times 3 is from described
The outer wall of second wide diameter portion 44 is through to inner wall.Using this structure, burner is using classification air feed Technology design, part wind
Amount is assigned on the outside of flame-stabilizing area, makes the lack of air of flame-stabilizing area, and coal dust does not have full combustion, and then coal dust is spraying flame-stabilizing area
Afterwards, by helping wind to carry out secondary oxygenating burning to coal dust three times.
As a kind of preferred embodiment of the invention, the coal dust flow-stabilizing mechanism 11 have spherical inner cavity, it is spherical it is interior it is intracavitary can
It is further provided with stabilier (not shown), which is equipped with powder inlet and meal outlet, and powder inlet and coal dust supply fill
Connection is set, meal outlet is connected to the primary air piping 1.Using this structure, air-flow discharges in spherical inner cavity, solid particle
Speed can be faster than air velocity, puddles in spherical interior intracavitary formation, plays the role of uniform current stabilization.
As a kind of preferred embodiment of the invention, temperature sensor 41 is equipped in the steady flame device 4.
As a kind of preferred embodiment of the invention, the steady flame device 4 is equipped with flame-observing hole 42.
After technical solution of the present invention, primary air piping 1 is burner powder supply channel, and coal dust is entered by pipeline
After burner, coal dust is broken up again by coal dust flow-stabilizing mechanism 11, makes coal powder density equiblibrium mass distribution in circulating line, coal dust
After First air cyclone 12, eddy flow is formed.Wind needed for burning is carried out hierarchical arrangement, the wind of Secondary Air by present invention design
The completion burning of coal dust when amount is not enough to meet heavy-duty service, therefore in underrun, in the lesser situation of secondary air flow,
Secondary Air has swirl strength needed for meeting burning, configures steady flame device 4, have after 23 eddy flow of Secondary Air cyclone
There is the function of absorbing simultaneously accumulation of heat, and stable heat radiation is provided for flame root, the stability of flame when greatly improving underload,
Ensure that coal dust is smoothly ignited.FGR technology is introduced, introduces secondary fresh wind 21 and secondary back wind 22 respectively in secondary air channel 2,
By the control to secondary oxygen amount, the combustion intensity in steady flame device 4 is controlled, by temperature sensor 41 and flame-observing hole 42
The combustion intensity in steady flame device 4 can be intuitively controlled very much, temperature is controlled at 950 DEG C, sufficiently lighting for coal dust can be met,
It can also realize low nitrogen burning, reduce the discharge of NOx, stablize burning under ultra-low load state to realize.
When burner heavy-duty service, a large amount of coal dusts enter flame-stabilizing area by primary air piping 1, fresh by adjusting Secondary Air
The proportion of wind 21 and secondary back wind 22 adjusts the flame intensity in steady flame device 4, avoids the occurrence of localized hyperthermia, coal dust is steady
Primary combustion is carried out in flame device 4, and provides lasting heat radiation by steady flame device 4, to be risen by a large amount of Secondary Air high-speed rotationals
Coal dust provide and stablize heat source, controlling in steady flame device 4 temperature is 1000 DEG C, and coal dust fugitive constituent is abundant in the environment of 1000 DEG C
Release, then high speed combustion-supporting gas is sprayed from the spout of tertiary air auxiliary combustion equipment 3, volatilization fuel gas fills on the outside of burner outlet
Divided combustion, remaining charcoal particle all draw after burner stable flame device 4 and burner outlet fugitive constituent combustion zone
Combustion vertically upward sprays coal dust, and burner hearth position tiny structure is run, pulverized coal particle can be in gravity because burner is that arrangement is set at bottom
Form superposed layer under the collective effect of air inducing gravitation, the coal dust burnt because burning after weight due to be sucked out burner hearth, the cloth
The burnout rate for substantially increasing coal dust with structure is set, and realizes the effect of multistage air-supply and multistage combustion, substantially reduces NOx's
It generates, the control in conjunction with burner secondary air channel 2 and tertiary air auxiliary combustion equipment 3 to oxygen amount, and the application of reflux wind, utilizes nitrogen
Reduction reaction further decreases the discharge amount of NOx, realizes low nitrogen and efficient function.The reduction reaction following reaction formula institute of nitrogen
Show:
2NO+C=CO2+N2；
2NO2+ 2C=2CO2+N2；
To sum up, the present invention is by a series of technological innovation and structure of modification, after being matched in boiler, realizes going out for burner
Power adjusting range reaches 25-105%, is greatly improved the load performance of boiler, and realizes the low nitrogen burning of high underload,
Without add any additive in the case where, the source discharge data of burner NOx can control in 150mg/Nm3 hereinafter,
And stablize burning.
The present invention is designed by innovation structure, and the concept separated using pot and furnace, steady flame device is the equal of one small
Furnace, is equivalent to and burner outlet is removed burner hearth a part, and the flame that burner sprays first fires in this port of steady flame device
It burns, then in spirt burner hearth, the purpose designed in this way can be achieved on Ultra-low load operation, it is low negative because steady flame device space is small
When lotus flame is small, steady flame device plays protection.When heavy-duty service, steady flame device can help to realize classification combustion
It burns, to realize low nitrogen burning.
Product form of the invention is not limited to this case diagram and embodiment, anyone carries out the appropriate of similar thinking to it
Changes or modifications all should be regarded as not departing from patent category of the invention.
Claims (7)
1. low NO is set at a kind of bottom suitable for significantly load adjustment, it is characterised in that: including successively covering from the inside to the outside
The flame of centre regulation pipe set, primary air piping, secondary air channel and auxiliary combustion equipment three times, it is steady that the import of primary air piping is equipped with coal dust
Mechanism is flowed, the outlet of primary air piping is equipped with First air cyclone, and the import of secondary air channel is equipped with air premixing apptss, secondary air channel
Outlet be equipped with Secondary Air cyclone, the outlet of secondary air channel is additionally provided with steady flame device, three times the air outlet of auxiliary combustion equipment and steady
Flame device connection, the steady flame device include the first wide diameter portion in cone cylinder shape, and the first wide diameter portion is set respectively along axial both ends
For first end and second end, the inner wall of the first end of the first wide diameter portion is connected with the secondary air channel, and the first wide diameter portion is from
One end to second end internal diameter is gradually increased, and the steady flame device further includes the second wide diameter portion in cone cylinder shape, the second wide diameter portion edge
Axial both ends are set to third end and the 4th end, the second end rank at the third end of the second wide diameter portion and first wide diameter portion
It connects, the second wide diameter portion is gradually increased from third end to the 4th end internal diameter, and the outlet of the auxiliary combustion equipment three times is expanded from described second
The outer wall in diameter portion is through to inner wall.
2. low NO is set at a kind of bottom suitable for significantly load adjustment as described in claim 1, it is characterised in that: institute
The angle of the inner wall and horizontal plane of stating the first wide diameter portion is 40 ° -60 °.
3. low NO is set at a kind of bottom suitable for significantly load adjustment as described in claim 1, it is characterised in that: institute
Stating air premixing apptss includes secondary fresh wind channel and secondary back wind channel, the outlet in secondary fresh wind channel and secondary returning
The outlet in stream wind channel is connected to the secondary air channel.
4. low NO is set at a kind of bottom suitable for significantly load adjustment as claimed in claim 3, it is characterised in that: institute
State auxiliary combustion equipment three times import be equipped with three times fresh wind channel and three times flow back wind channel, three times the outlet in fresh wind channel with
The outlet in reflux wind channel is connected to the auxiliary combustion equipment three times three times.
5. low NO is set at a kind of bottom suitable for significantly load adjustment as claimed in claim 4, it is characterised in that: institute
Coal dust flow-stabilizing mechanism is stated with spherical inner cavity, spherical interior intracavitary equipped with stabilier, which is equipped with powder inlet and meal outlet,
Powder inlet is connected to coal dust feeding mechanism, and meal outlet is connected to the primary air piping.
6. low NO is set at a kind of bottom suitable for significantly load adjustment as claimed in claim 5, it is characterised in that: institute
It states and is equipped with temperature sensor in steady flame device.
7. low NO is set at a kind of bottom suitable for significantly load adjustment as claimed in claim 6, it is characterised in that: institute
Steady flame device is stated equipped with flame-observing hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783158.XA CN106196044B (en) | 2016-08-31 | 2016-08-31 | Low NO is set at a kind of bottom suitable for significantly load adjustment |
| ZA2017/02107A ZA201702107B (en) | 2016-08-31 | 2017-03-27 | Base-located low nox burner applicable to large load adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783158.XA CN106196044B (en) | 2016-08-31 | 2016-08-31 | Low NO is set at a kind of bottom suitable for significantly load adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106196044A CN106196044A (en) | 2016-12-07 |
| CN106196044B true CN106196044B (en) | 2019-01-15 |
Family
ID=58086098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610783158.XA Active CN106196044B (en) | 2016-08-31 | 2016-08-31 | Low NO is set at a kind of bottom suitable for significantly load adjustment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106196044B (en) |
| ZA (1) | ZA201702107B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553262A (en) * | 2019-09-17 | 2019-12-10 | 上海华之邦科技股份有限公司 | Low-nitrogen combustion device and combustion boiler |
| CN111609402B (en) * | 2020-05-09 | 2022-09-16 | 北京泷涛环境科技有限公司 | Burner and gas boiler |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203099814U (en) * | 2012-12-18 | 2013-07-31 | 杭州燃油锅炉有限公司 | Pulverized coal burner |
| CN103075727B (en) * | 2013-01-25 | 2014-09-10 | 福建永恒能源管理有限公司 | High-efficiency and environment-friendly coal-fired system for vertical boiler with bottom-built burner |
| CN104180368A (en) * | 2014-08-26 | 2014-12-03 | 山西蓝天环保设备有限公司 | Medium-and-low temperature hot fume powder feeding type coal powder combustion device and combustion process thereof |
| CN104501145A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Self-preheating and sectionalized pulverized coal combustion low-NOx combustion device and method |
| CN204678328U (en) * | 2015-06-12 | 2015-09-30 | 瑞焓能源科技有限公司 | combustion powder industrial boiler |
| CN105465780A (en) * | 2015-12-23 | 2016-04-06 | 杭州燃油锅炉有限公司 | Ultralow NOx pulverized coal burner |
| CN205504974U (en) * | 2016-04-01 | 2016-08-24 | 北京佳德昌科技有限责任公司 | Low nitrogen coal burner |
| CN206037029U (en) * | 2016-08-31 | 2017-03-22 | 福建永恒能源管理有限公司 | Low NOx burner is put at end suitable for load adjustment by a wide margin |
-
2016
- 2016-08-31 CN CN201610783158.XA patent/CN106196044B/en active Active
-
2017
- 2017-03-27 ZA ZA2017/02107A patent/ZA201702107B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201702107B (en) | 2018-05-30 |
| CN106196044A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201680364U (en) | Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers | |
| CN101644431B (en) | Self-stabilizing three-stage air-distribution low-NOx pulverized coal burner | |
| CN101725969B (en) | Low-NOx pulverized coal burner | |
| CN202660534U (en) | Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air | |
| CN206037029U (en) | Low NOx burner is put at end suitable for load adjustment by a wide margin | |
| CN102777894B (en) | Reverse powder injection combustor | |
| CN103759258A (en) | Fuel-saving/gas-ignition stable-combustion low-nitrogen swirling pulverized coal combustor | |
| CN201475997U (en) | Coal dust burner with self-stabilizing capability, three-stage air-distribution and low NOx content | |
| CN108870383A (en) | A kind of pulverized-coal fired boiler low NOx combustion system | |
| CN106196040A (en) | Coal burner | |
| CN106196044B (en) | Low NO is set at a kind of bottom suitable for significantly load adjustment | |
| CN208901372U (en) | A kind of pulverized-coal fired boiler low NOx combustion system | |
| CN208025506U (en) | A kind of coal burner | |
| CN101718432B (en) | Swirl injection type pulverized fuel burner | |
| CN205480976U (en) | Hierarchical ultralow nitrogen gas burner of strong whirl fuel | |
| CN205402704U (en) | Two -stage adjustable steam plasma cyclone burner | |
| CN201606876U (en) | Low-NOx coal burner | |
| CN205261541U (en) | Low NOx gas combustion ware of adjustable isolation flame | |
| CN203744247U (en) | Spiral pulverized coal inlet center-backdraught type pulverized coal gasification burner | |
| CN203718767U (en) | Oil/gas saving ignition stable-combustion low-nitrogen swirl pulverized coal burner | |
| CN102944014A (en) | Industrial boiler burner and industrial boiler with same | |
| CN208832443U (en) | A kind of grading bamboo precombustion chamber coal burner | |
| CN202024323U (en) | Powder fuel combustor | |
| CN206861509U (en) | Vertical pulverized-coal fired boiler | |
| CN202902271U (en) | Industrial boiler burner and industrial boiler with the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Chenglv Inventor after: Han Zhihong Inventor after: Zhang Rongjie Inventor after: Zhao Xue Inventor before: Xue Yu Inventor before: Huang Chenglv Inventor before: Han Zhihong Inventor before: Zhang Rongjie Inventor before: Zhao Changxing Inventor before: Zhao Xue |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |