CN109404893A - A kind of tertiary air coal dust separation system - Google Patents
A kind of tertiary air coal dust separation system Download PDFInfo
- Publication number
- CN109404893A CN109404893A CN201811332892.XA CN201811332892A CN109404893A CN 109404893 A CN109404893 A CN 109404893A CN 201811332892 A CN201811332892 A CN 201811332892A CN 109404893 A CN109404893 A CN 109404893A
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- Prior art keywords
- tertiary air
- section
- coal dust
- separation system
- dust separation
- 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.)
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- 239000002817 coal dust Substances 0.000 title claims abstract description 42
- 238000000926 separation method Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 31
- 238000005452 bending Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241001442589 Convoluta Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/006—Fuel distribution and transport systems for pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/008—Feeding devices for pulverulent fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention provides a kind of tertiary air coal dust separation systems, including tertiary air pulverized coal channel, tertiary air separator, dense wind combustor three times and light wind combustor three times, the tertiary air separator is in lower part air inlet top air-out type structure, the main burning area of burner hearth is arranged in the dense wind combustor three times, and the burning-out zone of burner hearth is arranged in the light wind combustor three times；The present invention passes through the setting of tertiary air separator and the setting of control valve and measuring device, to the optimization design of each stage parameter, control the distribution and total air mass flow of the air quantity of different zones, optimize the design parameter in each region, reduce circulating resistance, combustion rate and bias pulverized coal separating effect can be improved, can preferably realize the deep or light proportion adjustment of tertiary air.
Description
Technical field
The present invention relates to a kind of coal dust separation system, in particular to a kind of tertiary air coal dust separation system.
Background technique
In middle storage formula pulverized coal carried by hot air pulverized coal firing boiler, wind system is a very important system of combustion system three times
System plays an important role to boiler safety, stabilization, economy, environmental protection operation.The intrinsic tertiary air arrangement one in boiler factory at present
As be arranged in the top in main burning area, and tertiary air carries about 15% or so coal dust amount, the coal dust carried in tertiary air
Fineness is thin, easy firing, therefore pulverized coal preparation system start and stop easily cause oxygen amount, flying dust and the NO of burner hearthXFluctuation, affect boiler safety,
Stable operation.In the system or device separated in the prior art to tertiary air, separator presents resistance in use
Greatly, easy to wear, dense-and-weak separator effect difference feature.The occurrence of such, safe, economic, the environmentally friendly operation for boiler
Be it is unfavorable, certain puzzlement also is caused to current boiler environment protection control.
A kind of tertiary air coal dust segregative line is needed on the basis of not influencing the safe, economic of boiler, operation based on this
System is devised.
Summary of the invention
The present invention provides a kind of tertiary air coal dust separation system, can solve it is in the prior art send three times wind system opening
Burner hearth oxygen amount, flying dust and NO caused by during stopping and putting into operationXFluctuate big adverse effect.
The present invention in order to solve the above problem the technical solution adopted is that:
A kind of tertiary air coal dust separation system, including tertiary air pulverized coal channel, tertiary air separator, dense wind combustor three times
With light wind combustor three times, the tertiary air separator is in lower part air inlet top air-out type structure, the tertiary air separator packet
It includes the upper outlet section that separator body is connected with separator body upper end and the lower part connected with separator body lower end enters
Mouth section, the side of the upper outlet section is connected to dense wind combustor three times, the upper end of the upper outlet section by dense tube cell
Portion is connected to light wind combustor three times by light tube cell, and the lower entrances section connects tertiary air pulverized coal channel, it is described it is dense three times
The main burning area of burner hearth is arranged in wind combustor, and the burning-out zone of burner hearth is arranged in the light wind combustor three times.
More preferably, the lower entrances section is provided with extension end by turning, and the extension end and horizontal direction are inclined
It is arranged and inclination angle is not more than 90 °.
More preferably, the end of the lower entrances section is connect by coal dust elbow with tertiary air pulverized coal channel, the coal dust
The both ends of elbow at least one with bending section, and the bending radius of the bending section is not less than coal dust elbow pipe diameter
1.25 again.
More preferably, the tangential and extension end of the bending section is axial parallel.
More preferably, the tube body direction of axis line in the air inlet mouth of pipe shaft core line direction of the lower entrances section and lower entrances section
It is arranged in spacing.
More preferably, scuff-resistant coating is provided in the tube body of the lower entrances section and upper outlet section.
More preferably, the separator body, upper outlet section and lower entrances section are tube structure, and the lower part enters
Mouth section and dense tube cell are arranged along cylinder tangential direction, and the length of separator body is vertical not less than the lower entrances section of three times
Highly.
More preferably, the light tube cell is greater than the one third of upper outlet section in the insertion depth of upper outlet section.
More preferably, type metal expansion joint, control valve and measuring wind speed are respectively arranged on the dense tube cell and light tube cell
Device.
More preferably, cooling wind pipeline is also provided with and communicated on the tertiary air pulverized coal channel.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention passes through the thick coal culm tertiary air that will be obtained after separation and sprays into the burning of burner hearth main burning area, three times by thin powdered coal
Wind sprays into burner hearth burning-out zone, improves main burning area and upper part to the reducing power of NOx, while guaranteeing that coal dust is abundant in burning-out zone
Burning reduces unburned carbon in flue dust；By the setting of the setting of tertiary air separator and control valve and measuring device, to each rank
The optimization design of section parameter, controls the distribution and total air mass flow of the air quantity of different zones, optimizes the design in each region
Parameter reduces circulating resistance, can improve combustion rate and bias pulverized coal separating effect, can preferably realize the deep or light of tertiary air
Proportion adjustment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of tertiary air coal dust separation system provided by the invention；
Fig. 2 is the structural schematic diagram of tertiary air separator in one embodiment of the invention；
Fig. 3 is the overlooking structure diagram that tertiary air separator connects with dense tube cell in one embodiment of the invention；
Fig. 4 is the overlooking structure diagram that tertiary air separator connects with lower entrances section in one embodiment of the invention；
Fig. 5 is the schematic diagram of the dense powder particle diameter distribution of tertiary air under 50 μm of Electronic Speculum in one embodiment of the invention；
Fig. 6 is the schematic diagram of the dense powder particle diameter distribution of tertiary air under 50 μm of Electronic Speculum in one embodiment of the invention；
Fig. 7 is the schematic diagram of the dense powder particle diameter distribution of tertiary air under 20 μm of Electronic Speculum in one embodiment of the invention；
Fig. 8 is the schematic diagram of the dense powder particle diameter distribution of tertiary air under 20 μm of Electronic Speculum in one embodiment of the invention.
Description of symbols:
1, tertiary air pulverized coal channel, 2, tertiary air separator, 21, separator body, 22, upper outlet section, 23, lower part enters
Mouth section, 231, extension end, 3, dense tube cell, 4, light tube cell, 5, light wind combustor three times, 6, dense wind combustor three times, 7, cooling wind
Pipeline, 8, type metal expansion joint, 9, control valve, 10, wind speed measuring device, 11, pipe-hanger support, 12, coal dust elbow, 121, curved
Pars convoluta.
Specific embodiment
With reference to the accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection scope be not limited by the specific implementation.
As shown in Figures 1 to 4, a kind of tertiary air coal dust separation system provided in an embodiment of the present invention, including tertiary air coal
Powder pipeline 1, tertiary air separator 2, dense wind combustor three times 6 and light wind combustor 5 three times, under the tertiary air separator 2 is in
Portion air inlet top air-out type structure, the tertiary air separator 2 include that separator body 21 is connected with 21 upper end of separator body
Upper outlet section 22 and the lower entrances section 23 that is connected with 21 lower end of separator body, the side of the upper outlet section 22
Dense wind combustor 6 three times are connected to by dense tube cell 3, the upper end of the upper outlet section 22 is connected to light by light tube cell 4
Wind combustor 5 three times, the lower entrances section 23 connect tertiary air pulverized coal channel 1, and the dense wind combustor three times 6 is arranged in furnace
The burning-out zone of burner hearth is arranged in the main burning area of thorax, the light wind combustor three times 5.
In the above-mentioned technical solutions, due to tertiary air separator 2 using lower part air inlet top air-out type structure come into
Row coal dust is separated again and is concentrated, the rotation after tertiary air tangentially enters separator body 21 from import, on ontology cylindrical surface
The particle effect by outside centrifugal force and the gas-flow resistance inwardly flowed simultaneously, work of the biggish particle of partial size in centrifugal force
It is moved with lower to separator wall surface, is finally gone out from dense tube cell 3, the small particle of partial size is then brought into light tube cell 4 and goes out, and realizes
The effect of bias pulverized coal separation, meanwhile, the thick coal culm tertiary air obtained after separation is sprayed into the burning of burner hearth main burning area, by light coal
Powder tertiary air sprays into burner hearth burning-out zone, improves main burning area and upper part to the reducing power of NOx, while guaranteeing coal dust in after-flame
Area's full combustion reduces unburned carbon in flue dust.
When specifically used, light tube cell 4 can be installed by pipe-hanger support 11, and pipe-hanger support 11 can limit
Piping displacement and absorption vibration, can improve the stress distribution of pipeline and the active force to pipe support, it is ensured that pipe-line system is transported safely
Row, and prolong its service life.
Tertiary air separator 2 can use three stage structure, can be using the side such as welding convenient for the transport and installation at scene
Formula successively fits together upper outlet section 22, separator body 21 and lower entrances section 23.
Specifically, the lower entrances section 23 is provided with extension end 231, the extension end 231 and level side by turning
To being inclined to set and inclination angle is no more than 90 °, in actual use, angle is adjusted according to different coals, to drop
Deposition of the low coal dust in separator body 21.
Specifically, the end of the lower entrances section 23 is connect by coal dust elbow 12 with tertiary air pulverized coal channel 1, described
The both ends of coal dust elbow 12 at least one with bending section 121, and the bending radius of the bending section 121 is not less than coal dust elbow
1.25 times of 12 pipe diameters, the i.e. 12 pipe diameter φ 1 of coal dust elbow of radius of curvature R >=1.25 times of wear-resistant bend, with drop
The resistance of low air inlet, coal dust elbow 12 can be made of lower resistance wear-resistant material.
Specifically, the tangential and extension end 231 of the bending section 121 is axial parallel, reduces the resistance of air-flow operation.
Specifically, the tube body axial line in the air inlet mouth of pipe shaft core line direction of the lower entrances section 23 and lower entrances section 23
Direction is arranged in spacing, and using eccentric structure, i.e. air inlet mouth of pipe caliber h and tube body caliber H deviate a certain distance, it is ensured that
The smooth lower resistance of the air inlet of air inlet pipeline section.
Specifically, it is provided with scuff-resistant coating in the tube body of the lower entrances section 23 and upper outlet section 22, scuff-resistant coating can
To be made of the anti-wear materials such as abrasion-resistant stee, ceramics, silicon carbide.
Specifically, the separator body 21, upper outlet section 22 and lower entrances section 23 are tube structure, described
Lower entrances section 23 and dense tube cell 3 are arranged along cylinder tangential direction, and the length of separator body 21 is not less than the lower part of three times
The vertical height of entrance 23, since the active force of tangential direction is big, convenient for the injection of air-flow, while the length of separator body 21
Degree is enough long, i.e. the vertical height L1 that 21 length L2 of separator body answers >=3 times of lower entrances section 23, it is ensured that particle is to wall
During face moves and rises, there are enough residence times to make particle radial motion to ontology wall surface and be brought into dense to out
Mouthful, improve the separating effect of bias pulverized coal.
Specifically, the light tube cell 4 is greater than the one third of upper outlet section 22 in the insertion depth of upper outlet section 22,
Insertion depth L3 of the i.e. light tube cell 4 in upper outlet section 22 should be greater than the 1/3 of the length L4 of upper outlet section 22, light tube cell 4
In the increase of 22 insertion depth of upper outlet section, the classification efficiency of solid particle in tertiary air separator 2 can be made to improve, because with
The increase of light 4 insertion depth of tube cell, originally a part also can be with ideal from the dust-contained airflow that entrance is directly entered light tube cell
In the case of route make rotating motion, it is suppressed that short-circuit flow when light tube cell insertion depth is shorter so that the separation property of separator
It can be improved.
Specifically, type metal expansion joint 8, control valve 9 and wind speed are respectively arranged on the dense tube cell 3 and light tube cell 4
Measuring device 10, cold and hot state when carrying out the adjusting of dense, light powder ratio, and boiler operatiopn may be implemented are adjusted at any time,
Control valve 9 can be manually or electrically, the various linear regulation valves such as pneumatically.Type metal expansion joint 8 is a kind of flexible structure, energy
Additional stress caused by compensating because of temperature difference and mechanical oscillation, extends the service life of dense tube cell 3 and light tube cell 4.
Specifically, it is also provided with and communicated with cooling wind pipeline 7 on the tertiary air pulverized coal channel 1, cooling wind can take cold one
Secondary wind guarantees that system of the tertiary air separation system after stoppage in transit is cooling and purges, prevents coal dust from depositing in pipeline and occur easily
Fire explosive phenomenon.
Based on the above technical solution, a gas is not only although tertiary air separator structure is simple, inside it
Solid separation device, and the flowing of internal gas flow has strong rotating turbulence, also has the fluid rotary of various complexity, is bent and returns
Flow phenomenon flows more complicated, the coal dust after tertiary air coal dust separation system commissioning trial, in pipeline dense to tertiary air, light
It is collected, within the same time (scene was sampled by 30 minutes), the coal dust weight collected in thick coal culm pipeline is approximately light
4 times in pulverized coal channel.
And Electronic Speculum test has been carried out to the bias pulverized coal particle diameter distribution collected, test result is as shown in Fig. 5 to Fig. 8.
Pass through the electron microscope analysis to bias pulverized coal, it can be seen that under 50 μm and 20 μm of Electronic Speculum, thin powdered coal partial size quantity will be more than dense coal
The quantity of powder illustrates that the deep or light regulating effect of tertiary air separator 2 has reached expection.
Meanwhile to testing under 300MW boiler load condition, preceding NO is transformedXFor 700kg/Nm3Left and right, fire box temperature are
1400 DEG C or so, NO after transformationXFor 450kg/Nm3Left and right, fire box temperature are 1300 DEG C or so.
By above data, the reduction of environmental protection index that the present invention not only realizes effectively is demonstrated, also effective drop
Low fire box temperature and the generation for reducing the safe phenomenon of the boiler operatiopn because of caused by burner hearth coking.
Disclosed above is only several specific embodiments of the invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (10)
1. a kind of tertiary air coal dust separation system, it is characterised in that: including tertiary air pulverized coal channel (1), tertiary air separator
(2), dense wind combustor three times (6) and light wind combustor three times (5), the tertiary air separator (2) go out in lower part air inlet top
Gas formula structure, the tertiary air separator (2) include the top that separator body (21) is connected with separator body (21) upper end
Outlet section (22) and the lower entrances section (23) connected with separator body (21) lower end, the side of the upper outlet section (22)
Side is connected to dense wind combustor three times (6) by dense tube cell (3), and the upper end of the upper outlet section (22) passes through light tube cell
(4) be connected to light wind combustor three times (5), the lower entrances section (23) connects tertiary air pulverized coal channel (1), it is described it is dense three times
The main burning area of burner hearth is arranged in wind combustor (6), and the burning-out zone of burner hearth is arranged in the light wind combustor three times (5).
2. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the lower entrances section (23)
It is provided with extension end (231) by turning, the extension end (231) is inclined to set with horizontal direction and inclination angle is not more than
90°。
3. a kind of tertiary air coal dust separation system according to claim 2, it is characterised in that: the lower entrances section (23)
End connect with tertiary air pulverized coal channel (1) by coal dust elbow (12), the both ends of the coal dust elbow (12) at least one
With bending section (121), and the bending radius of the bending section (121) is not less than the 1.25 of coal dust elbow (12) pipe diameter
Times.
4. a kind of tertiary air coal dust separation system according to claim 3, it is characterised in that: the bending section (121)
It is tangentially axial parallel with extension end (231).
5. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the lower entrances section (23)
Air inlet mouth of pipe shaft core line direction and lower entrances section (23) tube body direction of axis line in spacing setting.
6. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the lower entrances section (23)
Scuff-resistant coating is provided with in the tube body of upper outlet section (22).
7. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the separator body
(21), upper outlet section (22) and lower entrances section (23) are tube structure, the lower entrances section (23) and dense tube cell
(3) it is arranged along cylinder tangential direction, and the length of separator body (21) is vertical not less than the lower entrances section (23) of three times
Highly.
8. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the light tube cell (4) is upper
The insertion depth of portion's outlet section (22) is greater than the one third of upper outlet section (22).
9. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the dense tube cell (3) and light
Type metal expansion joint (8), control valve (9) and wind speed measuring device (10) are respectively arranged on tube cell (4).
10. a kind of tertiary air coal dust separation system according to claim 1, it is characterised in that: the tertiary air coal pipe
Cooling wind pipeline (7) are also provided with and communicated on road (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332892.XA CN109404893A (en) | 2018-11-09 | 2018-11-09 | A kind of tertiary air coal dust separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332892.XA CN109404893A (en) | 2018-11-09 | 2018-11-09 | A kind of tertiary air coal dust separation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404893A true CN109404893A (en) | 2019-03-01 |
Family
ID=65472703
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811332892.XA Pending CN109404893A (en) | 2018-11-09 | 2018-11-09 | A kind of tertiary air coal dust separation system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014127617A1 (en) * | 2013-02-20 | 2014-08-28 | 上海锅炉厂有限公司 | Rich-lean pulverized coal separation and arrangement mode of direct-flow burners in eight corners with double fireballs |
| CN104654292A (en) * | 2013-11-25 | 2015-05-27 | 中国科学院上海高等研究院 | Space rich-lean type direct flow pulverized coal burner |
| CN105509085A (en) * | 2015-12-18 | 2016-04-20 | 上海锅炉厂有限公司 | System and method for reducing boiler NOx emission by tertiary air concentrated-diluted separation |
| CN209295101U (en) * | 2018-11-09 | 2019-08-23 | 中节环立为（武汉）能源技术有限公司 | A kind of tertiary air coal dust separation system |
-
2018
- 2018-11-09 CN CN201811332892.XA patent/CN109404893A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014127617A1 (en) * | 2013-02-20 | 2014-08-28 | 上海锅炉厂有限公司 | Rich-lean pulverized coal separation and arrangement mode of direct-flow burners in eight corners with double fireballs |
| CN104654292A (en) * | 2013-11-25 | 2015-05-27 | 中国科学院上海高等研究院 | Space rich-lean type direct flow pulverized coal burner |
| CN105509085A (en) * | 2015-12-18 | 2016-04-20 | 上海锅炉厂有限公司 | System and method for reducing boiler NOx emission by tertiary air concentrated-diluted separation |
| CN209295101U (en) * | 2018-11-09 | 2019-08-23 | 中节环立为（武汉）能源技术有限公司 | A kind of tertiary air coal dust separation system |
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