CN205948626U - Denitration dust collector - Google Patents
Denitration dust collector Download PDFInfo
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- CN205948626U CN205948626U CN201620667799.4U CN201620667799U CN205948626U CN 205948626 U CN205948626 U CN 205948626U CN 201620667799 U CN201620667799 U CN 201620667799U CN 205948626 U CN205948626 U CN 205948626U
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- absorbing liquid
- ozone
- dust
- flue gas
- collecting device
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Abstract
The utility model discloses a denitration dust collector, include: the ozone that utilizes the NO oxidation of ozone in with the flue gas to become NO2 sprays the grid, spray the tube bank through spraying the absorption liquid that the absorption liquid absorbs the nitrogen oxide in the flue gas, and be used for detaching the smoke and dust in the flue gas and absorb the electric precipitation system that liquid spray drips, electric precipitation system includes the discharge electrode and the utmost point that gathers dust, discharge electrode and gather dust and form high -voltage electric field between the utmost point, with the smoke and dust in the flue gas with absorb liquid spray and drip the lotus to extremely absorbed by the dust absorption, ozone sprays the grid, the absorption liquid sprays the tube bank and electric precipitation system sets gradually on the flow direction of flue gas. The utility model discloses it does darker purification to the flue gas to combine NO oxidation technique denitration and wet -type electrostatic precipitator to remove dust.
Description
Technical field
This utility model is related to filed of flue gas purification, specially a kind of using taking off that NO oxidation combines with wet-esp
Nitre dust arrester, is mainly used in realizing the flue gas deep purifying of the industries such as electric power, petrochemical industry, smelting.
Background technology
Coal-burning power plant of China execution at present《Fossil-fuel power plant atmospheric pollutant emission standard》(GB13223-2011), in this standard
The emission limit of nitrogen oxides is 100mg/Nm3, the emission limit of flue dust is 30mg/Nm3.In December, 2015, Environmental Protection Department,
The National Development and Reform Commission, National Energy Board combine and issue《Implement in full coal-burning power plant's minimum discharge and reducing energy consumption work
Make scheme》, the limit value of nitrogen oxides minimum discharge is defined as 50mg/Nm by the program3, the emission limit of flue dust is 10mg/Nm3.
Scheme requires, and all must execute minimum discharge standard to all coal-burning power plants satisfying the requirements in the year two thousand twenty whole nation.
In order to reach above-mentioned reduction of discharging requirement, traditional scheme is to transform existing denitrating system and dust pelletizing system respectively.Right
SCR denitration system is transformed, and increases by one layer of catalyst, realizes nitrogen oxides and reduces discharging；To Reconstruction of Dust Removal System, increase wet-esp
Device, realizes flue dust and reduces discharging.But program construction costs is high, equipment occupation space is big, and the completion time of project is long.
Content of the invention
This utility model is directed to the proposition of problem above, and a kind of downstream being arranged on wet desulfurization system of research design,
And the denitration dust collecting device of the upstream of chimney.
Technological means of the present utility model are as follows：
A kind of denitration dust collecting device is it is characterised in that described denitration dust collecting device includes：
Using ozone, the NO in flue gas is oxidized to NO2Ozone injection grid；
Absorb the absorbing liquid spray tube bank of the nitrogen oxides in flue gas by spray-absorption liquid；
And be used for removing the electric dust removing system of flue dust and absorbing liquid droplet in flue gas, described electric dust removing system includes putting
Electrode and dust collector pole, form high voltage electric field between described discharge electrode and dust collector pole, by the flue dust in flue gas and absorbing liquid droplet lotus
Electricity, and absorbed by dust suction pole；
Described ozone injection grid, absorbing liquid spray tube bank and electric dust removing system set in the flow direction of the flue gas successively
Put.
Further, described ozone injection grid include in length and breadth arranged crosswise on the section vertical with flow of flue gas direction
A plurality of horizontal ozone pipeline and longitudinal ozone pipeline；On described horizontal ozone pipeline and longitudinal ozone pipeline, there are multiple ozone
Spout.
Further, described denitration dust collecting device also includes ozone generation system, and described ozone generation system includes oxygen
Tank and ozone reactor.
Further, described absorbing liquid spray tube bank includes being arranged on the absorbing liquid pipeline at described device top and is arranged on
The Multi-layer sprinkling pipe of described absorbing liquid pipeline bottom；On described absorbing liquid pipeline, there are multiple absorbing liquid spouts, absorbing liquid is from suction
After receiving the ejection of liquid spout, flow successively through Multi-layer sprinkling pipe from top to bottom.
Further, described denitration dust collecting device also includes absorbing liquid spray feed system, described absorbing liquid spray supply
System includes absorption flow container and the suction that the absorbing liquid absorbing in flow container is extracted out supply absorbing liquid pipeline for depositing absorbing liquid
Receive liquid pump.
Further, described discharge electrode and described dust collector pole connect high frequency electric source.
Further, described denitration dust collecting device also includes the flushing water system for rinsing the dust on dust collector pole and droplet
System；Described flushing water system includes the flushing water out being arranged on dust collector pole top.
Further, described water system of rinsing also includes water pot, water pump and the filter filtering impurities in water.
Compared with the prior art, denitration dust collecting device described in the utility model has the advantages that：
1st, do not need to original denitrating system and Reconstruction of Dust Removal System, only need to arrange and be arranged on the end of the two, to cigarette
Gas carries out depth denitration dust collecting.
2nd, the discharge of nitrogen oxides substantially, can be down to 30mg/Nm by denitration dust collecting effect3Hereinafter, soot emissions are down to
5mg/Nm3Below.
3rd, there is low cost, the completion time of project is short, occupy the few advantage in space.
4th, it is not only able to denitration dust collecting, but also mercury in flue gas, PM10, PM2.5, toxic heavy metal and three oxygen can be removed
Change the multiple pollutants such as sulfur.
Brief description
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is this utility model embodiment denitration dust collecting device front view；
Fig. 2 is this utility model embodiment denitration dust collecting device right view；
Fig. 3 is that this utility model embodiment ozone sprays grid schematic diagram；
Fig. 4 is this utility model embodiment absorbing liquid spray tube bank schematic diagram；
Fig. 5 is this utility model embodiment absorbing liquid spray system schematic diagram；
Fig. 6 is this utility model embodiment flushing water system schematic.
In figure：1st, smoke inlet；2nd, ozone injection grid；3rd, absorbing liquid spray tube bank；4th, discharge electrode；5th, flushing water goes out
Mouthful；6th, high frequency electric source；7th, dust collector pole；8th, exhanst gas outlet；9th, horizontal ozone pipeline；10th, longitudinal ozone pipeline；11st, ozone spout；
12nd, absorbing liquid pipeline；13rd, absorbing liquid spout；14th, shower；15th, absorb flow container；16th, absorbing liquid pump；17th, water pot；18 water pumps；
19th, filter；20th, flushing water pipeline.
Specific embodiment
A kind of denitration dust collecting device it is adaptable to provide the depth of a set of denitration dust collecting simultaneously for industries such as electric power, petrochemical industry, smeltings
Degree purifier.
Purpose, technical scheme and advantage for making this utility model embodiment are clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described it is clear that being retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of this utility model, rather than whole embodiments.Based on the enforcement in this utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly fall into
The scope of this utility model protection.
The direction term that this utility model is previously mentioned, for example " on ", D score, "front", "rear", "left", "right" etc., be only ginseng
Examine the direction of annexed drawings.Therefore, the direction term of use is used to illustrate, rather than is used for limiting this utility model.
Denitration dust collecting device as shown in figs 1 to 6, including：Using ozone, the NO in flue gas is oxidized to NO2Ozone
Injection grid 2；Absorb the absorbing liquid spray bundle 3 of the nitrogen oxides in flue gas by spray-absorption liquid；And be used for removing cigarette
Flue dust in gas and the electric dust removing system of absorbing liquid droplet, electric dust removing system includes discharge electrode 4 and dust collector pole 7, discharge electrode 4 and receipts
Form high voltage electric field between dirt pole 7, will be charged to the flue dust in flue gas and absorbing liquid droplet, and absorbed by dust suction pole；
Ozone injection grid 2, absorbing liquid spray tube bank 3 and electric dust removing system set gradually in the flow direction of the flue gas.
Referring to Fig. 3, it is many on the section vertical with flow of flue gas direction that ozone injection grid 2 includes arranged crosswise in length and breadth
Bar horizontal ozone pipeline 9 and longitudinal ozone pipeline 10；Laterally on ozone pipeline 9 and longitudinal ozone pipeline 10, there are multiple ozone sprays
Mouth 11.
Denitration dust collecting device also includes ozone generation system, and ozone generation system includes oxygen tank and ozone reactor.
Referring to Fig. 4, absorbing liquid spray tube bank 3 includes being arranged on the absorbing liquid pipeline 12 at top and is arranged on absorbing liquid pipeline
The Multi-layer sprinkling pipe 14 of 12 bottoms；Multiple absorbing liquid spouts 13 are had on absorbing liquid pipeline 12, absorbing liquid is from absorbing liquid spout 13
After ejection, flow successively through Multi-layer sprinkling pipe 14 from top to bottom.The absorbing liquid spray feed system that is fed through of absorbing liquid provides, tool
With reference to Fig. 5, absorbing liquid sprays feed system and includes absorption flow container 15 for depositing absorbing liquid and by absorbing liquid body running mode
Absorbing liquid in tank 15 extracts the absorbing liquid pump 16 of supply absorbing liquid pipeline 12 out, and absorbing liquid pump 16 will absorb the absorption in flow container 15
Liquid is transported in absorbing liquid pipeline 12, is sprayed by absorbing liquid shower nozzle.Both included in absorbing liquid absorbing the chemical substance of NO, example
As：NaClO、NaClO2、KMnO4、H2O2；Also include absorbing NO2And other NOXChemical substance, for example：NaOH、KOH.
This utility model adopts wet-esp technology, discharge electrode 4 and dust collector pole 7 to connect high frequency electric source 6, shape between the two
Become high voltage electric field.High voltage electric field can will be charged to flue dust and absorbing liquid droplet, and absorbed by dust suction pole.
Denitration dust collecting device of the present utility model also includes the flushing water system for rinsing the dust on dust collector pole 7 and droplet
System；Referring to Fig. 6, rinse water system and include being arranged on the flushing water out 5 at dust collector pole 7 top.
Rinse water system and include water pot 17, water pump 18 and the filter 19 filtering impurities in water.Water pump 18 is by water pot 17
Water convey to flushing water pipeline 20, the water of conveying filters through filter 19, from the end of flushing water pipeline 20 rinse water out 5
Discharge.
This device portal flue gas generally meets the flue gas of discharging standards, and exiting flue gas are the flue gas of minimum discharge.
Specifically, flue gas enters denitration dust collecting device from smoke inlet 1, first flows through ozone injection grid 2 and mixes with ozone, flue gas
In water-fast NO be to be dissolved in the NO of water by ozone oxidation2；Then flue gas flows through absorbing liquid spray tube bank 3, the nitrogen in flue gas
Oxide is absorbed by liquid absorption.Last flue gas flows through high voltage electric field, the flue dust in flue gas and absorbing liquid droplet by charged, be caught
Collect on dust collector pole 7.In order to prevent reentrainment of dust, dust collector pole 7 adopts flushing water deashing, and the gas from exhanst gas outlet 8 exclusion is
Gas for minimum discharge.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any those familiar with the art in the technical scope that this utility model discloses, according to this practicality
New technical scheme and its inventive concept equivalent or change in addition, all should cover protection domain of the present utility model it
Interior.
Claims (8)
1. a kind of denitration dust collecting device is it is characterised in that described denitration dust collecting device includes：
Using ozone, the NO in flue gas is oxidized to NO2Ozone injection grid；
Absorb the absorbing liquid spray tube bank of the nitrogen oxides in flue gas by spray-absorption liquid；
And be used for removing the electric dust removing system of flue dust and absorbing liquid droplet in flue gas, described electric dust removing system includes discharge electrode
And dust collector pole, form high voltage electric field between described discharge electrode and dust collector pole, will be charged to the flue dust in flue gas and absorbing liquid droplet, and
Absorbed by dust suction pole；
Described ozone injection grid, absorbing liquid spray tube bank and electric dust removing system set gradually in the flow direction of the flue gas.
2. denitration dust collecting device according to claim 1 is it is characterised in that described ozone injection grid includes intersecting in length and breadth
It is arranged in a plurality of horizontal ozone pipeline on the section vertical with flow of flue gas direction and longitudinal ozone pipeline；Described horizontal ozone
On pipeline and longitudinal ozone pipeline, there are multiple ozone spouts.
3. denitration dust collecting device according to claim 1 and 2 it is characterised in that described denitration dust collecting device also include smelly
Oxygen evolution system is united, and described ozone generation system includes oxygen tank and ozone reactor.
4. denitration dust collecting device according to claim 1 is it is characterised in that the spray tube bank inclusion of described absorbing liquid is arranged on
The absorbing liquid pipeline at described device top and the Multi-layer sprinkling pipe being arranged on described absorbing liquid pipeline bottom；Described absorbing liquid pipeline
On there are multiple absorbing liquid spouts, absorbing liquid from absorbing liquid spout ejection after, flow successively through Multi-layer sprinkling pipe from top to bottom.
5. the denitration dust collecting device according to claim 1 or 4 is it is characterised in that described denitration dust collecting device also includes inhaling
Receive liquid spray feed system, described absorbing liquid sprays feed system and includes absorption flow container for depositing absorbing liquid and by absorbing liquid
The absorbing liquid pump of the absorbing liquid conveying supply absorbing liquid pipeline in tank.
6. denitration dust collecting device according to claim 1 is it is characterised in that described discharge electrode and described dust collector pole connect height
Frequency power.
7. denitration dust collecting device according to claim 1 is it is characterised in that described denitration dust collecting device is also included for rushing
Wash the flushing water system of dust on dust collector pole and droplet；Described flushing water system includes being arranged on the flushing water at dust collector pole top
Outlet.
8. denitration dust collecting device according to claim 7, rises and is characterised by, described flushing water system also includes water pot, water
Pump and the drainage screen filtering impurities in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667799.4U CN205948626U (en) | 2016-06-29 | 2016-06-29 | Denitration dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667799.4U CN205948626U (en) | 2016-06-29 | 2016-06-29 | Denitration dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205948626U true CN205948626U (en) | 2017-02-15 |
Family
ID=57969544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620667799.4U Active CN205948626U (en) | 2016-06-29 | 2016-06-29 | Denitration dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205948626U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944531A (en) * | 2016-06-29 | 2016-09-21 | 南京龙源环保有限公司 | Denitrating and dust removing device |
| CN106938220A (en) * | 2017-04-28 | 2017-07-11 | 广东华实环境工程设计有限公司 | Wet type high voltagehigh frequency electrostatic precipitator |
| CN107998859A (en) * | 2017-12-21 | 2018-05-08 | 双盾环境科技有限公司 | A kind of technique of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
| CN112138500A (en) * | 2020-09-19 | 2020-12-29 | 昆明理工大学 | Vehicle-mounted sulfur, nitrate, dust and fluorine integrated deep purification device and use method |
-
2016
- 2016-06-29 CN CN201620667799.4U patent/CN205948626U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944531A (en) * | 2016-06-29 | 2016-09-21 | 南京龙源环保有限公司 | Denitrating and dust removing device |
| CN106938220A (en) * | 2017-04-28 | 2017-07-11 | 广东华实环境工程设计有限公司 | Wet type high voltagehigh frequency electrostatic precipitator |
| CN107998859A (en) * | 2017-12-21 | 2018-05-08 | 双盾环境科技有限公司 | A kind of technique of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
| CN112138500A (en) * | 2020-09-19 | 2020-12-29 | 昆明理工大学 | Vehicle-mounted sulfur, nitrate, dust and fluorine integrated deep purification device and use method |
| CN112138500B (en) * | 2020-09-19 | 2021-10-08 | 昆明理工大学 | Vehicle-mounted sulfur, nitrate, dust and fluorine integrated deep purification device and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211101 Room 401, No. 1, Huashen Avenue, Yuhua District, Nanjing, Jiangsu Province Patentee after: Guoneng Longyuan environmental protection Nanjing Co.,Ltd. Address before: 210032 Room 401, apartment building 2, Nanjing high tech Development Zone, Pukou District, Nanjing, Jiangsu Province Patentee before: NANJING LONGYUAN ENVIRONMENT Co.,Ltd. |