CN208042121U - A kind of pulverized coal particle recirculating fluidized bed combustion system - Google Patents
A kind of pulverized coal particle recirculating fluidized bed combustion system Download PDFInfo
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- CN208042121U CN208042121U CN201721781316.4U CN201721781316U CN208042121U CN 208042121 U CN208042121 U CN 208042121U CN 201721781316 U CN201721781316 U CN 201721781316U CN 208042121 U CN208042121 U CN 208042121U
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- burner hearth
- fluidized bed
- secondary air
- vertical section
- combustion system
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- 239000003245 coal Substances 0.000 title claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- 239000002245 particle Substances 0.000 title claims abstract description 28
- 230000003134 recirculating effect Effects 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 26
- 229910052755 nonmetal Inorganic materials 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000000843 powder Substances 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 239000002956 ash Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001464 adherent effect Effects 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001925 catabolic effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
A kind of pulverized coal particle recirculating fluidized bed combustion system of the utility model, belongs to clean coal technical field.Including igniter, scum pipe, air-distribution device, burner hearth, coal-feeding tube, refeed line, secondary air channel, cyclone separator, material returning valve, back-end ductwork, superheater, economizer, air preheater and its broken machine device of the column of stokehold；The fine powder of coal-powder boiler is conducive to flow uniform and quick after-flame, the lower bed temperature of fluid bed and a large amount of material inside and outsides cycle advantageously reduce pollutant emission, the utility model has carried out profound optimization on the basis of organically combining two kinds of coal combustion technologies of coal-powder boiler and recirculating fluidized bed, obtain a kind of very-high performance, minimum discharge combustion technology.
Description
Technical field
The utility model belongs to clean coal technical field, and in particular to a kind of pulverized coal particle recirculating fluidized bed combustion system.
Background technology
Circulating fluidized bed combustion coal technology is a ripe clean coal burning technology, now comes into large-scale commercialization
Stage.It is increasingly stringent however as environmental protection policy, merely by pollutant catabolic gene measure in circulating fluid bed boiler without
Method meets existing environmental protection standard requirement；Circulating fluidized bed boiler is to take into account environmental protection characteristic simultaneously, is forced to sacrifice part efficiency spy
Property --- it such as reduces fire box temperature, reduce excess air coefficient, most directly translate into environment-friendly type circulating fluidized bed boiler flying dust
Phosphorus content and carbon content in the bottom ash are generally higher.Coal-powder boiler has nearly two century-old history runs, is acknowledged as efficiency of combustion highest
A coal combustion technology, however, its is wanted to realize preferable environmental protection characteristic, after stove must the mating SCR denitration system to involve great expense,
Wet desulphurization and wet electric dust removing system etc., coal-powder boiler user can't bear the heavy load.Considered based on factors above, there is an urgent need to one kind
Pulverized coal particle recirculating fluidized bed (PC-CFB) combustion method and system, to meet the market needs of efficient burning, minimum discharge.
Utility model content
The purpose of utility model of the utility model is in view of the deficiencies of the prior art, it is ciculation fluidized to provide a kind of pulverized coal particle
Bed combustion system.
To achieve the above object, technical solution used by the utility model is：A kind of pulverized coal particle recirculating fluidized bed combustion
Burning system, wherein：Including igniter, scum pipe, air-distribution device, burner hearth, coal-feeding tube, refeed line, secondary air channel, cyclonic separation
Device, material returning valve, back-end ductwork, superheater, economizer, air preheater and its broken machine device of the column of stokehold；The igniter is located at
The rear end of air-distribution device, and be suspended on boiler crossbeam by spring hanger；The upper end of the scum pipe pass through air-distribution device with
Burner hearth is connected to, and lower end is connect with lag cooler；The scum pipe shares 4, and two, outside is continuity scum pipe, and inside two is
Selective deslagging pipe；The burner hearth is located at the top of air-distribution device, and the outlet of burner hearth passes through non-metal expansion joint and whirlwind point
It is connected from device；The coal-feeding tube is arranged on the downside of the front wall of burner hearth；The refeed line is arranged on the downside of the rear wall of burner hearth；Described two
Secondary air hose burner hearth front-back wall interlaced arrangement, and the overfiren air port quantity of front wall be more than rear wall quantity；The cyclonic separation
Device is located at the centre of burner hearth and back-end ductwork, and the import of cyclone separator is connected by non-metal expansion joint with burner hearth, whirlwind
The exhaust outlet of separator is connected by non-metal expansion joint with back-end ductwork；Under the suitable for reading and cyclone separator of the material returning valve
Portion's standpipe is connected, and the lower mouth of material returning valve is connected by type metal expansion joint with refeed line；The back-end ductwork is located at burning
The rear of system, the superheater and economizer are supported in back-end ductwork successively；The air preheater is connected to province by breathing section
The lower section of coal device.
Further preferred embodiment, the burner hearth are divided into bottom vertical section region, changeover portion region and Upper vertical section region
(4-3), bottom vertical section region are located at overfiren air port hereinafter, being highly 3.8m, the size in bottom vertical section peak width direction
Identical as upper furnace, the size of depth direction is 0.35 times of upper furnace depth, and changeover portion region is overfiren air port top
One section, it is punctured into original 0.35 times in depth direction from top to bottom, Upper vertical section region is the main space of heat transfer, height
For 25m, for the grain size of reduction recycle stock, the superficial gas velocity in burner hearth bottom vertical section region and Upper vertical section region is chosen
For 4m/s.
Further preferred embodiment, the cyclone separator include import accelerating sections, cylinder, cone, standpipe and exhaust pipe, institute
The aditus laryngis flow velocity for stating accelerating sections and cylinder the tangent is designed as 35m/s, and cylinder height is 1.5 times of barrel diameter, cone height
It it is 2 times of barrel diameter, it is 0.5 times of inlet height that exhaust pipe, which uses " back taper " structure, insertion depth,.
Further preferred embodiment, the air-distribution device sectional area is the 35% of furnace cross-sectional area, while using small bell jar wind
Cap, blast cap aperture flow velocity are 40Nm/s, and blast cap resistance is 2300Pa, makes PC-CFB stoves that can also stablize fortune under low load condition
Row.
Further preferred embodiment, the overfiren air port single layer front-back wall interlaced arrangement, and front wall overfiren air port quantity is more than
Wall afterwards, overfiren air port flow velocity are 80m/s, and the vertical range with air-distribution device is 3.5~4.5m, under the premise of ensureing to burn,
Improve the environmental protection characteristic of PC-CFB stoves.
A kind of method using the pulverized coal particle recirculating fluidized bed combustion system burning pulverized coal particle of the utility model, tool
Body is, by the broken machine device of the column of stokehold by the pulverized coal particle that raw coal Particle Breakage is 0~2mm, to account for the primary of total blast volume 35%
Wind is entered the vertical section region of burner hearth bottom after air preheater preheats by air-distribution device, and the powder of burner hearth bottom is entered by coal-feeding tube
Coal particle and the circulating ash of burner hearth bottom is entered under the effect of First air bubbling by refeed line, is largely transported to burner hearth mistake
Cross a section region, account for the Secondary Air of total blast volume 65% after air preheater preheats by secondary air channel positioned at changeover portion region lower end and
When fill into, Secondary Air be accessible to burner hearth center, avoid oxygen-depleted zone, under a Secondary Air collective effect, material is then routed to
Upper furnace vertical section region, then, grain size form interior recycle stock more than the adherent reflux of the particle of 300um, and grain size is less than
After the thin material of 300um enters efficient cyclone separator, 99.9% material is captured to form outer circulation material, remaining ultra-fine object
Material is carried along into back-end ductwork in the form of flying dust by flue gas, and to avoid fine ash from being deposited in back-end ductwork, tail flue gas velocity ratio is normal
The superficial gas velocity in the rule high 3m/s of boiler, burner hearth bottom vertical section region and Upper vertical section region is 4m/s, and pulverized coal particle exists
Combustion process is completed in this series of interior cycle and outer circulation；When operation maintain burner hearth differential pressure be 8Kpa, tail portion oxygen amount be 2~
3%, at this time bed temperature be maintained at 850 DEG C, the burner hearth differential pressure on overfiren air port is maintained at average 100Pa/m, efficient burning it is same
When can preferably inhibit generation and the efficient removal SO of NOx again2；The broken machine device of column is a kind of crusher system.
Compared with existing coal combustion technology, the utility model has the advantages that：
1. high combustion efficiency, desulfuration in furnace effect are good, while effectively inhibiting the generation of NOx, the case where calcium sulfur ratio is less than 2
Under, be originally generated amount of the desulfuration in furnace efficiency more than 99%, NOx is less than 50mg/Nm3；
2. ash concentration is big in burner hearth, furnace heat transfer coefficient is high, and tail flue gas flow velocity is high, and tail portion convective heat-transfer coefficient is high, drop
Low heat exchange area saves steel consumption.
3. material size is thin in stove, fluidising air velocity is low, thoroughly eliminates the wear problem of CFB boiler.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of pulverized coal particle recirculating fluidized bed combustion system of the utility model.
Specific implementation mode
As shown in Figure 1, a kind of pulverized coal particle recirculating fluidized bed combustion system described in the present embodiment, wherein：It is filled including igniting
Set 1, scum pipe 2, air-distribution device 3, burner hearth 4, coal-feeding tube 5, refeed line 6, secondary air channel 7, cyclone separator 8, material returning valve 9, tail
Portion's flue 10, superheater 11, economizer 12, air preheater 13 and its broken machine device of the column of stokehold；The igniter 1 is located at cloth wind
The rear end of device 3, and be suspended on boiler crossbeam by spring hanger；The upper end of the scum pipe 2 passes through air-distribution device 3 and stove
Thorax 4 is connected to, and lower end is connect with lag cooler；The scum pipe 2 shares 4, and two, outside is continuity scum pipe, and inside two is
Selective deslagging pipe；The burner hearth 4 is located at the top of air-distribution device 3, and the outlet of burner hearth 4 passes through non-metal expansion joint and whirlwind
Separator 8 is connected；The coal-feeding tube 5 is arranged on the downside of the front wall of burner hearth 4；The refeed line 6 is arranged under the rear wall of burner hearth 4
Side；The secondary air channel 7 burner hearth 4 front-back wall interlaced arrangement, and the overfiren air port quantity of front wall be more than rear wall quantity；Institute
The centre that cyclone separator 8 is located at burner hearth 4 and back-end ductwork 10 is stated, and the import of cyclone separator 8 passes through non-metal expansion joint
It is connected with burner hearth 4, the exhaust outlet of cyclone separator 8 is connected by non-metal expansion joint with back-end ductwork 10；The material returning valve 9
Lower riser suitable for reading with cyclone separator 8 is connected, and the lower mouth of material returning valve 9 is connected by type metal expansion joint with refeed line 6；
The back-end ductwork 10 is located at the rear of combustion system, and the superheater 11 and economizer 12 are supported on back-end ductwork 10 successively
It is interior；The air preheater 13 is connected to the lower section of economizer 12 by breathing section.
Burner hearth 4 described in the present embodiment divides for bottom vertical section region 4-1, changeover portion region 4-2 and Upper vertical section area
Domain 4-3, bottom vertical section region 4-1 be located at overfiren air port 7 hereinafter, height be 3.8m, bottom vertical section peak width direction
Size is identical as upper furnace, and the size of depth direction is 0.35 times of upper furnace depth, and changeover portion region 4-2 is Secondary Air
One section of top of mouth is punctured into original 0.35 times in depth direction from top to bottom, and Upper vertical section region 4-3 is the main of heat transfer
Space is highly 25m, to reduce the grain size of recycle stock, burner hearth bottom vertical section region 4-1 and Upper vertical section region 4-3
Superficial gas velocity be chosen for 4m/s.
Cyclone separator 8 described in the present embodiment include import accelerating sections 8-1, cylinder 8-2, cone 8-3, standpipe 8-4 and
Exhaust pipe 8-5, the accelerating sections 8-1 and the aditus laryngis flow velocity of cylinder 8-2 the tangent are designed as 35m/s, and cylinder 8-2 height is cylinder
1.5 times of diameter, cone 8-3 height are 2 times of barrel diameter, and exhaust pipe 8-5 uses " back taper " structure, insertion depth be into
0.5 times of open height.
The sectional area of air-distribution device 3 described in the present embodiment is the 35% of furnace cross-sectional area, while using small bell jar blast cap, wind
Cap aperture flow velocity is 40Nm/s, and blast cap resistance is 2300Pa, makes PC-CFB stoves also being capable of stable operation under low load condition.
The single layer front-back wall interlaced arrangement of overfiren air port 7 described in the present embodiment, and front wall overfiren air port quantity is more than rear wall,
Overfiren air port flow velocity is 80m/s, and the vertical range with air-distribution device 3 is 3.5~4.5m, under the premise of ensureing to burn, is promoted
The environmental protection characteristics of PC-CFB stoves.
A kind of method using the pulverized coal particle recirculating fluidized bed combustion system burning pulverized coal particle of the present embodiment, specifically
By the broken machine device of the column of stokehold by the pulverized coal particle that raw coal Particle Breakage is 0~2mm, to account for the First air of total blast volume 35%
The vertical section region 4-1 for entering burner hearth bottom by air-distribution device 3 after the preheating of air preheater 13, enters burner hearth bottom by coal-feeding tube 5
The pulverized coal particle in portion and the circulating ash of burner hearth bottom is entered under the effect of First air bubbling by refeed line 6, it is most of to be conveyed
To burner hearth changeover portion region 4-2, the Secondary Air of total blast volume 65% is accounted for after the preheating of air preheater 13 by being located under changeover portion region
The secondary air channel 7 at end fills into time, and Secondary Air is accessible to burner hearth center, avoids oxygen-depleted zone, under a Secondary Air collective effect,
Material is then routed to upper furnace vertical section region 4-3, and then, grain size, which is more than in the adherent reflux formation of particle of 300um, to follow
Ring material, after thin material of the grain size less than 300um enters efficient cyclone separator 8,99.9% material is captured to form outer follow
Ring material, remaining superfine-material are carried along into back-end ductwork 10 in the form of flying dust by flue gas, to avoid fine ash in back-end ductwork 10
Deposition, the high 3m/s of tail flue gas velocity ratio conventional boiler, the apparent gas in burner hearth bottom vertical section region and Upper vertical section region
Speed is 4m/s, and pulverized coal particle completes combustion process in this series of interior cycle and outer circulation；Maintain burner hearth poor when operation
Pressure is 8Kpa, and tail portion oxygen amount is 2~3%, and bed temperature is maintained at 850 DEG C at this time, and the burner hearth differential pressure on overfiren air port is maintained at flat
Equal 100Pa/m, efficient burning while, can preferably inhibit generation and the efficient removal SO of NOx again2；The broken machine device of column is one
Kind crusher system.
The material returning valve 9 is self-balancing material-returning device, and the air compartment of material returning valve lower part realizes " subregion cloth wind is individually adjusted ",
Blanking crosswind amount is less than normal, and feed back crosswind amount is bigger than normal；
The back-end ductwork 10 is easy the adhesion deposition of ultra-fine ash, needs to improve tail flue gas flow velocity, tail flue gas stream
Speed is chosen higher 3m/s than CFB boiler；
The utility model provides a kind of energy saving clean coal burning technology to get both with emission reduction, keeps the fine powder of coal-powder boiler advantageous
In flowing uniform and quick after-flame, the lower bed temperature of fluid bed and a large amount of material inside and outsides cycle advantageously reduce pollutant row
It puts, the utility model has carried out profound on the basis of organically combining two kinds of coal combustion technologies of coal-powder boiler and recirculating fluidized bed
Optimization, obtain a kind of very-high performance, minimum discharge combustion technology.
Claims (5)
1. a kind of pulverized coal particle recirculating fluidized bed combustion system, it is characterized in that：Including igniter (1), scum pipe (2), cloth wind
Device (3), burner hearth (4), coal-feeding tube (5), refeed line (6), secondary air channel (7), cyclone separator (8), material returning valve (9), tail portion
The broken machine device of column of flue (10), superheater (11), economizer (12), air preheater (13) and its stokehold；The igniter (1)
Rear end positioned at air-distribution device (3), and be suspended on boiler crossbeam by spring hanger；The upper end of the scum pipe (2) passes through
Air-distribution device (3) is connected to burner hearth (4), and lower end is connect with lag cooler；The scum pipe (2) shares 4, and two, outside is continuous
Property scum pipe, inside two is selective deslagging pipe；The burner hearth (4) is located at the top of air-distribution device (3), and burner hearth (4)
Outlet is connected by non-metal expansion joint with cyclone separator (8)；The coal-feeding tube (5) is arranged on the downside of the front wall of burner hearth (4)；
The refeed line (6) is arranged on the downside of the rear wall of burner hearth (4)；The secondary air channel (7) is interlocked cloth in the front-back wall of burner hearth (4)
It sets, and the quantity of the secondary air channel of front wall is more than the quantity of rear wall；The cyclone separator (8) is located at burner hearth (4) and tail portion cigarette
The centre in road (10), and the import of cyclone separator (8) is connected by non-metal expansion joint with burner hearth (4), cyclone separator (8)
Exhaust outlet be connected with back-end ductwork (10) by non-metal expansion joint；The suitable for reading and cyclone separator (8) of the material returning valve (9)
Lower riser be connected, the lower mouth of material returning valve (9) is connected by type metal expansion joint with refeed line (6)；The back-end ductwork
(10) it is located at the rear of combustion system, the superheater (11) and economizer (12) are supported on successively in back-end ductwork (10)；Institute
State the lower section that air preheater (13) is connected to economizer (12) by breathing section.
2. a kind of pulverized coal particle recirculating fluidized bed combustion system according to claim 1, it is characterized in that：The burner hearth (4)
It is divided into bottom vertical section region (4-1), changeover portion region (4-2) and Upper vertical section region (4-3), bottom vertical section region
(4-1) is located at secondary air channel (7) hereinafter, being highly 3.8m, size and the upper furnace phase in bottom vertical section peak width direction
Together, the size of depth direction is 0.35 times of upper furnace depth, and changeover portion region (4-2) is one section of secondary air channel top, from
On be punctured into original 0.35 times in depth direction down, Upper vertical section region (4-3) is the main space of heat transfer, is highly
25m, to reduce the grain size of recycle stock, the apparent gas in burner hearth bottom vertical section region (4-1) and Upper vertical section region (4-3)
Speed is chosen for 4m/s.
3. a kind of pulverized coal particle recirculating fluidized bed combustion system according to claim 1, it is characterized in that：The cyclonic separation
Device (8) includes import accelerating sections (8-1), cylinder (8-2), cone (8-3), standpipe (8-4) and exhaust pipe (8-5), the acceleration
The aditus laryngis flow velocity of section (8-1) and cylinder (8-2) the tangent is designed as 35m/s, and cylinder (8-2) is highly 1.5 times of barrel diameter,
Cone (8-3) is highly 2 times of barrel diameter, and it is inlet height that exhaust pipe (8-5), which uses " back taper " structure, insertion depth,
0.5 times.
4. a kind of pulverized coal particle recirculating fluidized bed combustion system according to claim 1, it is characterized in that：The air-distribution device
(3) sectional area is the 35% of furnace cross-sectional area, while using small bell jar blast cap, and blast cap aperture flow velocity is 40Nm/s, blast cap resistance
For 2300Pa, make PC-CFB stoves also being capable of stable operation under low load condition.
5. a kind of pulverized coal particle recirculating fluidized bed combustion system according to claim 1, it is characterized in that：The secondary air channel
(7) single layer front-back wall interlaced arrangement, and front wall secondary air channel quantity is more than rear wall, secondary air channel flow velocity is 80m/s, is filled with cloth wind
The vertical range for setting (3) is 3.5~4.5m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721781316.4U CN208042121U (en) | 2017-12-19 | 2017-12-19 | A kind of pulverized coal particle recirculating fluidized bed combustion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721781316.4U CN208042121U (en) | 2017-12-19 | 2017-12-19 | A kind of pulverized coal particle recirculating fluidized bed combustion system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940448A (en) * | 2017-12-19 | 2018-04-20 | 太原锅炉集团有限公司 | A kind of pulverized coal particle recirculating fluidized bed combustion system and its combustion method |
| CN110836364A (en) * | 2019-12-16 | 2020-02-25 | 杭州锅炉集团股份有限公司 | Sectional combustion system for hearth of circulating fluidized bed boiler |
| CN114046497A (en) * | 2021-11-17 | 2022-02-15 | 广东绿壳新能源有限公司 | Circulating fluidized bed boiler capable of reducing NOX discharge amount |
-
2017
- 2017-12-19 CN CN201721781316.4U patent/CN208042121U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940448A (en) * | 2017-12-19 | 2018-04-20 | 太原锅炉集团有限公司 | A kind of pulverized coal particle recirculating fluidized bed combustion system and its combustion method |
| CN107940448B (en) * | 2017-12-19 | 2024-06-18 | 太原锅炉集团有限公司 | Pulverized coal particle circulating fluidized bed combustion system and combustion method thereof |
| CN110836364A (en) * | 2019-12-16 | 2020-02-25 | 杭州锅炉集团股份有限公司 | Sectional combustion system for hearth of circulating fluidized bed boiler |
| CN114046497A (en) * | 2021-11-17 | 2022-02-15 | 广东绿壳新能源有限公司 | Circulating fluidized bed boiler capable of reducing NOX discharge amount |
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