CN206215034U - A kind of dry method desulfuration system - Google Patents
A kind of dry method desulfuration system Download PDFInfo
- Publication number
- CN206215034U CN206215034U CN201621258165.XU CN201621258165U CN206215034U CN 206215034 U CN206215034 U CN 206215034U CN 201621258165 U CN201621258165 U CN 201621258165U CN 206215034 U CN206215034 U CN 206215034U
- Authority
- CN
- China
- Prior art keywords
- dry method
- delivery nozzle
- burner hearth
- method desulfuration
- desulfuration system
- 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.)
- Expired - Fee Related
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 23
- 238000002309 gasification Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 12
- 230000003009 desulfurizing effect Effects 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002956 ash Substances 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000010881 fly ash Substances 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 230000035484 reaction time Effects 0.000 abstract description 2
- 230000023556 desulfurization Effects 0.000 description 9
- 239000002893 slag Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 125000000101 thioether group Chemical class 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a kind of dry method desulfuration system, including storage device, feeder, conveying device and ciculation fluidized device；Storage device includes powder storehouse, sack cleaner, heating plate and electronic inlet valve and jet pump；Feeder includes air accumulator, air compressor machine, cooling driers, heater and gasification board；Conveying device includes roots blower, charging line and delivery nozzle；Ciculation fluidized device includes burner hearth and cyclone separator.The low-temperature burning technology that the utility model passes through ciculation fluidized device, extends the reaction time of coal-fired, flue gas and desulfurizing agent, and fly ash carbon content is significantly reduced, while controlling the discharge of nitrogen oxides, alleviates problem of environmental pollution；The chemical reaction that the elements such as the CaO in desulfurizing agent and ash component occur is exothermic reaction, and the heat for discharging is conducive to coal-fired abundant burning, and then improve the power output of boiler in time supplemented with the heat required for fire coal.
Description
Technical field
The utility model is related to Desulfurization Technique for Coal-fired Boilers field, more particularly to a kind of dry method desulfuration system.
Background technology
At present, the desulphurization technological process of coal-burning boiler can be roughly divided into wet desulphurization and the big type of dry desulfurization two, its
Middle dry desulfurization is the desulfurization during furnace charge burns during desulfurizing agent and fuel or other comburants together added into burner hearth
Sulphur in agent and fuel is reacted change sulphidisation, and a this sulfide part is discharged in being mingled in slag, and another part is mixed
Miscellaneous to be discharged in flue dust, this sulfur method is easy to operate, but effect is difficult to control to, and the power output of boiler is relatively low, and desulfurization is produced
Thing is mingled in slag so that slag and desulfurization product are all difficult by, and can cause new pollution.
Utility model content
In order to solve the above technical problems, the utility model discloses a kind of dry method desulfuration system, including storage device, supply
Device, conveying device and ciculation fluidized device；
The storage device includes powder storehouse, the sack cleaner being arranged at the charging aperture of powder storehouse, is arranged on powder storehouse
The heating plate of bottom and it is arranged on the electronic inlet valve and jet pump of powder storehouse discharging opening；
The feeder includes the air accumulator, air compressor machine, cooling driers, heater and the gasification board that are sequentially connected, described
Gasification board is arranged on powder bottom of the reservior portion；
The conveying device includes roots blower, charging line and delivery nozzle, and the roots blower passes through feed pipe
Road is connected with delivery nozzle, and the delivery nozzle is connected with jet pump；
The ciculation fluidized device is including being provided with the burner hearth of First air entrance and screw feeder and being provided with exhaust outlet
Cyclone separator, the burner hearth top is connected by circulating line with cyclone separator, and lower section passes through U-tube road and cyclonic separation
Device is connected, and the delivery nozzle is connected by charging line with First air entrance.
As further improvement of the utility model, high-order level-sensing device, middle position material position are respectively equipped with inside the powder storehouse
Meter and low level level-sensing device.
Used as further improvement of the utility model, the burner hearth is additionally provided with Secondary Air entrance.
Used as further improvement of the utility model, the U-shaped duct bottom is provided with combustion air inlet.
As further improvement of the utility model, set on the charging line between the delivery nozzle and First air entrance
There is flowmeter.
Used as further improvement of the utility model, the position in the burner hearth positioned at First air entrance top is provided with rectification
Device.
The beneficial effects of the utility model are：
The low-temperature burning technology that dry method desulfuration system of the present utility model passes through ciculation fluidized device, is conducive to efficiently de-
Sulphur, and by recycle combustion, coal-fired and its flue gas is stopped for a long time in burner hearth, extend coal-fired, flue gas and desulfurization
The reaction time of agent, fly ash carbon content is significantly reduced, while controlling the discharge of nitrogen oxides, alleviates problem of environmental pollution；
The chemical reaction that the elements such as the CaO in desulfurizing agent and ash component occur is exothermic reaction, and the heat for discharging is supplemented in time
Heat required for fire coal, is conducive to coal-fired fully burning, and then improve the power output of boiler.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to make needed for embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model,
For those of ordinary skill in the art, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is structure principle chart of the present utility model.
Marked in figure：
1- storage devices；11- powders storehouse；12- sack cleaners；13- heating plates；The electronic inlet valves of 14-；15- jet pumps；
16- high position level-sensing devices；17- middle position level-sensing devices；18- low level level-sensing devices；
2- feeders；21- air accumulators；22- air compressor machines；23- cooling driers；24- heaters；25- gasification boards；
3- conveying devices；31- roots blowers；32- charging lines；33- delivery nozzles；34- flowmeters；
The ciculation fluidized devices of 4-；41- First air entrances；42- screw feeders；43- burner hearths；44- exhaust outlets；45- whirlwind
Separator；46- circulating lines；47-U type pipelines；48- Secondary Air entrances；49- combustion air inlets；50- rectifiers.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
As shown in figure 1, the dry method desulfuration system of the present embodiment includes：Storage device 1, feeder 2, conveying device 3 with
And ciculation fluidized device 4.
Storage device 1 includes powder storehouse 11, the sack cleaner 12 being arranged at the charging aperture of powder storehouse 11, is arranged on powder
The heating plate 13 of the bottom of storehouse 11 and it is arranged on the electronic inlet valve 14 and jet pump 15 of the storehouse discharging opening of powder 11.
Before the powders such as desulfurizing agent are transported to powder storehouse 11 by closed tank car, unloaded using vehicle-mounted blast system, pocket type is removed
Dirt device 12 is unloaded source of the gas for purification.Heating plate 13 plays heating and thermal insulation effect, prevents desulfurizing agent from condensing, and causes line clogging.
High-order level-sensing device 16, middle position level-sensing device 17 and low level level-sensing device 18 are respectively equipped with inside powder storehouse 11, for supervising
Control controlling level.
Feeder 2 includes the air accumulator 21, air compressor machine 22, cooling driers 23, heater 24 and the gasification board that are sequentially connected
25, gasification board 25 is arranged on the bottom of powder storehouse 11.
Cooling driers 23 carry out heat exchange using the compressed air that refrigerant and air compressor machine 22 are produced, and compressed air temperature is dropped to
2~10 DEG C of dew-point temperatures of scope, water content tends to the state of over-saturation in making compressed air, so that in removing compressed air
Moisture.
The compressed air gone after moisture removal is heated by heater 24 again, then passes to gasification board 25, makes powder and granule shape material
Gaseous state, increases the mobile performance of material, makes discharging unobstructed.
Conveying device 3 includes roots blower 31, charging line 32 and delivery nozzle 33, and roots blower 31 passes through feed pipe
Road 32 is connected with delivery nozzle 33, and delivery nozzle 33 is connected with jet pump 15.
Desulfurizing agent enters jet pump 15 by electronic inlet valve 14, by the air quantity of roots blower 31, desulfurizing agent is sent to
Delivery nozzle 33, then ciculation fluidized device 4 and coal-fired flue-gas are sent into by delivery nozzle 33 carry out desulphurization reaction.
Ciculation fluidized device 4 is including being provided with the burner hearth 43 of First air entrance 41 and screw feeder 42 and being provided with waste gas
The cyclone separator 45 of mouth 44, the top of burner hearth 43 is connected by circulating line 46 with cyclone separator 45, and lower section passes through U-tube road
47 are connected with the device of cyclonic separation 45, and delivery nozzle 33 is connected by charging line 32 with First air entrance 41.
Burner hearth 43 is additionally provided with Secondary Air entrance 48, and the bottom of U-tube road 47 is provided with combustion air inlet 49；Delivery nozzle 33 with
Charging line 33 between First air entrance 48 is provided with flowmeter 34；Positioned at the position of the top of First air entrance 48 in burner hearth 43
Rectifier 50 is provided with, it is early in burning in breeze airflow, into being concentrated to it before burner hearth 43, and cooperation to be passed through Secondary Air
Phase reduces the generation of nitrogen oxides.
Ciculation fluidized device 4 uses low-temperature burning technology, and ignition temperature is 850~950 DEG C, is conducive to high-efficiency desulfurization, and
By recycle combustion, coal-fired and its flue gas is stopped for a long time in burner hearth, extend coal-fired flue-gas anti-with desulfurizing agent
Between seasonable, fly ash carbon content is significantly reduced, while controlling the discharge of nitrogen oxides, alleviates problem of environmental pollution；Desulfurizing agent
The chemical reaction occurred with the element such as the CaO in ash component, its reaction equation is：
S+O2=SO2+296Kj/mol
CaO+SO2+1/2O2→CaSO4+486Kj/mol
As can be seen that sweetening process is exothermic reaction from above-mentioned chemical equation, the heat for discharging is mended in time
Coal-fired required heat is filled, has been conducive to coal-fired fully burning, and then improve the power output of boiler；And desulfurization degree can
Up to more than 90%, the sulfur content in slag and flue gas is reduced, effectively improve problem of environmental pollution.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (6)
1. a kind of dry method desulfuration system, it is characterised in that including storage device, feeder, conveying device and ciculation fluidized
Device；
The storage device includes powder storehouse, the sack cleaner being arranged at the charging aperture of powder storehouse, is arranged on powder bottom of the reservior portion
Heating plate and be arranged on the electronic inlet valve and jet pump of powder storehouse discharging opening；
The feeder includes the air accumulator, air compressor machine, cooling driers, heater and the gasification board that are sequentially connected, the gasification
Plate is arranged on powder bottom of the reservior portion；
The conveying device include roots blower, charging line and delivery nozzle, the roots blower by charging line with
Delivery nozzle is connected, and the delivery nozzle is connected with jet pump；
The ciculation fluidized device is including being provided with the burner hearth of First air entrance and screw feeder and being provided with the whirlwind of exhaust outlet
Separator, the burner hearth top is connected by circulating line with cyclone separator, and lower section is connected by U-tube road with cyclone separator
Connect, the delivery nozzle is connected by charging line with First air entrance.
2. dry method desulfuration system according to claim 1, it is characterised in that be respectively equipped with high-order material inside the powder storehouse
Position meter, middle position level-sensing device and low level level-sensing device.
3. dry method desulfuration system according to claim 2, it is characterised in that the burner hearth is additionally provided with Secondary Air entrance.
4. dry method desulfuration system according to claim 3, it is characterised in that the U-shaped duct bottom is provided with combustion air
Entrance.
5. dry method desulfuration system according to claim 4, it is characterised in that between the delivery nozzle and First air entrance
Charging line be provided with flowmeter.
6. dry method desulfuration system according to claim 5, it is characterised in that First air entrance top is located in the burner hearth
Position be provided with rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258165.XU CN206215034U (en) | 2016-11-22 | 2016-11-22 | A kind of dry method desulfuration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258165.XU CN206215034U (en) | 2016-11-22 | 2016-11-22 | A kind of dry method desulfuration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206215034U true CN206215034U (en) | 2017-06-06 |
Family
ID=58791043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621258165.XU Expired - Fee Related CN206215034U (en) | 2016-11-22 | 2016-11-22 | A kind of dry method desulfuration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206215034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318591A (en) * | 2021-06-28 | 2021-08-31 | 河南骏化发展股份有限公司 | Kiln flue gas desulfurization device and desulfurization process |
-
2016
- 2016-11-22 CN CN201621258165.XU patent/CN206215034U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113318591A (en) * | 2021-06-28 | 2021-08-31 | 河南骏化发展股份有限公司 | Kiln flue gas desulfurization device and desulfurization process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Changwei Inventor after: Ma Ruicun Inventor after: Huang Shumei Inventor before: Zhang Changwei |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 |