CN208553733U - A kind of system that base reagent removes sulfur trioxide in flue gas - Google Patents
A kind of system that base reagent removes sulfur trioxide in flue gas Download PDFInfo
- Publication number
- CN208553733U CN208553733U CN201820078141.9U CN201820078141U CN208553733U CN 208553733 U CN208553733 U CN 208553733U CN 201820078141 U CN201820078141 U CN 201820078141U CN 208553733 U CN208553733 U CN 208553733U
- Authority
- CN
- China
- Prior art keywords
- flue
- base reagent
- ammonia
- flue gas
- sulfur trioxide
- 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
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000003546 flue gas Substances 0.000 title claims abstract description 31
- 238000005507 spraying Methods 0.000 claims abstract description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 4
- -1 reactor Chemical compound 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 description 27
- 239000000843 powder Substances 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- WWILHZQYNPQALT-UHFFFAOYSA-N 2-methyl-2-morpholin-4-ylpropanal Chemical compound O=CC(C)(C)N1CCOCC1 WWILHZQYNPQALT-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses the systems of sulfur trioxide in a kind of base reagent removing flue gas, including reactor, the top of the reactor is equipped with the first flue, first flue is rear vertically downward after the bending of top to be connect with the second flue, second flue and the first flue junction are right angle, wherein, base reagent spraying system is additionally provided at second flue, the base reagent spraying system includes warehouse, the lower part of the warehouse is equipped with the screw(-type) feeder with meter, the screw(-type) feeder with meter passes through pipeline and pneumatic conveying inlet pipe, one end of the pneumatic conveying inlet pipe is connect with dilute ammonia pipe, dilute ammonia supervisor connect with the ammonia-spraying grid in flue, ammonia-spraying grid is that multiple nozzles are evenly arranged in flue, wherein, it is also set on pipeline between the screw(-type) feeder with meter and pneumatic conveying inlet pipe There is compressed air Pneumatic conveyer, the other end is connected with multiple jet blowers, and jet blower is mounted in ammonia-spraying grid main pipeline, and there are also flow deflectors for second flue and the first flue junction.Compared with the existing technology, the system can make base reagent pass through ammonia-spraying grid together with ammonia uniformly to spray into flue, it is mixed well with flue gas, SO3 before reactor can not only be removed can also remove the sulfur trioxide of catalyst reactor conversion, removal effect is good, reduces pollution, air preheater can be effectively prevent to block.
Description
Technical field
The utility model relates to the systems of sulfur trioxide in a kind of base reagent removing flue gas.
Background technique
Thermal power generation is current China forms of electricity generation the most main.Contain a certain amount of element sulphur in fire coal, is fired in coal
A large amount of gaseous pollutant can be generated during burning, pollutant is the most serious with sulfide and nitrogen oxides.
The SO3 in flue gas is not handled before flue gas enters air preheater in the prior art.Sulfur trioxide
It can react with ammonia and vapor, generate ammonium hydrogen sulfate and sulfuric acid, be deposited at air preheater, cause Blocking in Air Preheater
The problems such as plug increases flue resistance, increases air-introduced machine power consumption, causes power plant's energy consumption to increase and influences the normal of coal unit
Operation.
Therefore, how the system that a kind of desulfurization effect is good, reduces sulfur trioxide in the base reagent of pollution removing flue gas is provided,
The technical issues of being the utility model knack solution.
Utility model content
In view of the above drawbacks of the prior art and problem, the utility model aim there is provided a kind of desulfurization effects good, drop
The system of sulfur trioxide in the base reagent removing flue gas of low pollution.
In order to achieve the above object, the utility model provides the following technical solutions
The system of sulfur trioxide in a kind of base reagent removing flue gas, including reactor, the top of the reactor are equipped with the
One flue, first flue is rear vertically downward after the bending of top to be connect with the second flue, second flue and the first cigarette
Road junction is right angle, wherein base reagent spraying system is additionally provided at second flue, the base reagent spraying system includes
The lower part of warehouse, the warehouse is equipped with the screw(-type) feeder with meter, and the screw(-type) feeder with meter passes through pipeline
It is connect with one end of pneumatic conveying inlet pipe, the pneumatic conveying inlet pipe with dilute nitrogen gas tank, wherein the spiral with meter is given
Compressed air Pneumatic conveyer is additionally provided on pipeline between material machine and pneumatic conveying inlet pipe, the other end is connected with multiple injections
Mouth, and jet blower is mounted in ammonia-spraying grid main pipeline, there are also flow deflectors for second flue and the first flue junction.
Further, the bottom of the warehouse is equipped with discharge port, and top is equipped with feed inlet, and the discharge port is additionally provided with valve.
Further, the feed inlet is additionally provided with lid, and one end of the lid is fixed on warehouse by hinged mode.
Further, the reactor is 4-SCR reactor.
It further, is powdered base reagent in the warehouse.
Further, the powdered base reagent partial size is 30-50 μm.
The utility model in terms of existing technologies, the utility model since solid base reagent being pulverized into powder,
It 30-50 μm of partial size, is stored in warehouse in the form of a powder, the delivery rate through screw(-type) feeder control base reagent will be certain
The powdery alkali reagent of amount is transported to injector through pneumatic conveying inlet pipe using compressed air Pneumatic conveyer, and injector is set
It sets at denitration ammonia-spraying grid main pipe, base reagent sprays into the flue gas containing ammonia, and base reagent passes through in flue with flue gas later
Deflector is mixed completely with flue gas and is reacted with the sulfur trioxide in flue gas, removes sulfur trioxide.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the system of sulfur trioxide in the utility model base reagent removing flue gas.
Specific embodiment
Below in conjunction with the attached drawing of the utility model, the technical solution of the utility model is clearly and completely described,
Obviously, the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.It is practical based on this
Embodiment in novel, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, is fallen within the protection scope of the utility model.
As shown in Figure 1, the system that a kind of base reagent disclosed by the utility model removes sulfur trioxide in flue gas, including reaction
Device 4, the top of the reactor 4 are equipped with the first flue, first flue after the bending of top vertically downward after with the second cigarette
Road 1 connects, and second flue 1 and the first flue junction are right angle, wherein are additionally provided with base reagent at second flue 1
Spraying system, the base reagent spraying system include warehouse 5, and the lower part of the warehouse 5 is equipped with the screw(-type) feeder with meter
6, the screw(-type) feeder 6 with meter by pipeline and pneumatic conveying inlet pipe 8, one end of the pneumatic conveying inlet pipe 8 with
Dilute nitrogen gas tank connection, wherein be additionally provided with pressure on the pipeline between the screw(-type) feeder with meter and pneumatic conveying inlet pipe
Contracting air Pneumatic conveyer 7, the other end is connected with multiple jet blowers 9, and jet blower 9 is mounted on 2 main pipeline of ammonia-spraying grid
Interior, there are also flow deflectors 3 for second flue 1 and the first flue junction, wherein reactor is 4-SCR reactor.
Through the above it is not difficult to find that since solid base reagent being pulverized into powder, 30-50 μm of partial size, with powder
Form be stored in warehouse 5, through with meter screw(-type) feeder 6 control base reagent delivery rate, by a certain amount of powder
Last shape base reagent is sent to jet blower 9 through pneumatic conveying inlet pipe defeated 8 using compressed air Pneumatic conveyer 7, and jet blower 9 is arranged
At 2 main pipe of denitration ammonia-spraying grid, base reagent is sprayed into the flue gas containing ammonia, and base reagent passes through leading in flue with flue gas later
Flowing plate 3 is mixed completely with flue gas and is reacted with the sulfur trioxide in flue gas, removes sulfur trioxide.
Specifically, the bottom of the warehouse is equipped with discharge port, top is equipped with feed inlet, and the discharge port is additionally provided with valve,
Base reagent is added in warehouse by feed inlet, base reagent is flowed by screw(-type) feeder by discharge port, in addition, the charging
Mouth is additionally provided with lid, and one end of the lid is fixed on warehouse by hinged mode.
The advantages of the utility model:
(1) base reagent is general industrial chemicals, and easy procurement price is low, and system is simple, is aoxidized by spraying into flue
The alkaline absorbents particle such as magnesium or magnesium hydroxide is taken off using the SO3 in the absorbent removing flue gas of strong basicity compared to conventional
Sulphur tower Tower System removes sulfur trioxide, all has a clear superiority in project cost and operating cost.
(2) spray into position as base reagent in the ammonia-spraying grid of denitration, ammonia-spraying grid make gas formed stable eddy flow or
Vortex street, reinforces flue gas disturbance, strengthens DIFFUSION IN TURBULENCE, provides advantage to the adjusting of flue gas flow field uniformity.
(3) content of SO3 in the air preheater flue gas after can effectively reduce SCR reactor reduces SO3 to air preheater and dedusting
Air preheater blockage problem is administered in the influence of device, while reducing the cleaning discharge that pollutant realizes flue gas.
(4) it realizes that absorbent granules are mixed with the uniform of flue gas using pneumatic conveying, injection apparatus, guarantees that SO3 is higher
Removal efficiency.
(5) gas-solid reaction occurs with the SO3 in flue gas as base reagent directly sprays into flue in solid form, reduces conventional
Absorbent is configured to slurries or solution in wet desulphurization, causes SO3 to react with ammonia and vapor and generates ammonium hydrogen sulfate and sulphur
Acid deposits at air preheater, the problems such as the harm to result in blockage above description is only a specific implementation of the present invention,
But protection scope of the utility model is not limited thereto, and anyone skilled in the art takes off in the utility model
It in the technical scope of dew, can easily think of the change or the replacement, should be covered within the scope of the utility model.Therefore,
The protection scope of the utility model shall be subject to the protection scope of the claim.
Claims (4)
1. the system of sulfur trioxide in a kind of base reagent removing flue gas, including reactor, the top of the reactor are equipped with first
Flue, first flue is rear vertically downward after the bending of top to be connect with the second flue, second flue and the first flue
Junction is right angle, wherein base reagent spraying system is additionally provided at second flue, the base reagent spraying system includes storage
Storehouse, the lower part of the warehouse are equipped with the screw(-type) feeder with meter, the screw(-type) feeder with meter by pipeline with
Pneumatic conveying inlet pipe, one end of the pneumatic conveying inlet pipe are connect with dilute ammonia pipe, wherein the screw feeder with meter
Compressed air Pneumatic conveyer is additionally provided on pipeline between machine and pneumatic conveying inlet pipe, the other end is connected with multiple injections
Mouth, and jet blower is mounted in ammonia-spraying grid main pipeline, there are also flow deflectors for second flue and the first flue junction.
2. the system of sulfur trioxide in base reagent removing flue gas according to claim 1, which is characterized in that the reactor
For 4-SCR reactor.
3. the system of sulfur trioxide in base reagent removing flue gas according to claim 1, which is characterized in that in the warehouse
For powdered base reagent.
4. the system of sulfur trioxide in base reagent removing flue gas according to claim 3, which is characterized in that described powdered
Base reagent partial size be 30-50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820078141.9U CN208553733U (en) | 2018-01-17 | 2018-01-17 | A kind of system that base reagent removes sulfur trioxide in flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820078141.9U CN208553733U (en) | 2018-01-17 | 2018-01-17 | A kind of system that base reagent removes sulfur trioxide in flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208553733U true CN208553733U (en) | 2019-03-01 |
Family
ID=65452126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820078141.9U Expired - Fee Related CN208553733U (en) | 2018-01-17 | 2018-01-17 | A kind of system that base reagent removes sulfur trioxide in flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208553733U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604500A (en) * | 2020-12-17 | 2021-04-06 | 苏州西热节能环保技术有限公司 | Coal fired unit SCR flue gas denitration system spouts ammonia mixing arrangement with doublestage |
| CN113731113A (en) * | 2021-09-15 | 2021-12-03 | 北京工大环能科技有限公司 | System for reducing blockage of ammonium bisulfate of air preheater of coal-fired power plant |
| CN113797755A (en) * | 2021-10-26 | 2021-12-17 | 西安热工研究院有限公司 | A device and method for removing SO3 by using SCR denitration device |
-
2018
- 2018-01-17 CN CN201820078141.9U patent/CN208553733U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604500A (en) * | 2020-12-17 | 2021-04-06 | 苏州西热节能环保技术有限公司 | Coal fired unit SCR flue gas denitration system spouts ammonia mixing arrangement with doublestage |
| CN113731113A (en) * | 2021-09-15 | 2021-12-03 | 北京工大环能科技有限公司 | System for reducing blockage of ammonium bisulfate of air preheater of coal-fired power plant |
| CN113731113B (en) * | 2021-09-15 | 2022-05-17 | 北京工大环能科技有限公司 | System for reducing blockage of ammonium bisulfate of air preheater of coal-fired power plant |
| CN113797755A (en) * | 2021-10-26 | 2021-12-17 | 西安热工研究院有限公司 | A device and method for removing SO3 by using SCR denitration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190717 Address after: 110000 Lianhuashan Road No. 7, Huanggu District, Shenyang City, Liaoning Province Patentee after: Shenyang Shanshui original environmental protection technology Co., Ltd. Address before: A System for Removal of Sulfur Trioxide from Flue Gas by Alkali Reagent in Shenyang, Liaoning Province Patentee before: Zhong Zhifeng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20210117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |