CN106861352A - Acoustic agglomeration joint turbulent flow coalescence technology removes the devices and methods therefor of fine particle - Google Patents
Acoustic agglomeration joint turbulent flow coalescence technology removes the devices and methods therefor of fine particle Download PDFInfo
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- CN106861352A CN106861352A CN201710182310.3A CN201710182310A CN106861352A CN 106861352 A CN106861352 A CN 106861352A CN 201710182310 A CN201710182310 A CN 201710182310A CN 106861352 A CN106861352 A CN 106861352A
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- acoustic agglomeration
- fine particle
- turbulent flow
- flow
- room
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
Abstract
The invention discloses the devices and methods therefor that pollutant removes a kind of acoustic agglomeration joint turbulent flow coalescence technology removing fine particle in equipment and clearance technique field is belonged to, the device of the acoustic agglomeration joint turbulent flow coalescence technology removing fine particle includes that acoustic agglomeration room, compression drive sound source, flow-disturbing cylinder, gas approach pipeline and exhanst gas outlet pipeline；The gas approach pipeline, acoustic agglomeration room, exhanst gas outlet pipeline and deduster are sequentially connected in series；The exterior top surface of acoustic agglomeration room is provided with single or multiple compressions and drives sound source；Acoustic agglomeration chamber interior is horizontally disposed flow-disturbing cylinder.Flow-disturbing cylinder is cylinder, and array arranges that its effect is turbulization.The present invention is pre-processed using acoustic agglomeration joint turbulent flow coalescence technology to the fine particle in the ash-laden gas of the discharges such as coal-burning power plant, and fine particle is agglomerated into larger particles, with reference to follow-up conventional dust removal device, reaches efficient removal PM2.5Purpose, so as to control PM2.5Discharge.
Description
Technical field
Equipment and clearance technique field are removed the invention belongs to pollutant, more particularly to a kind of acoustic agglomeration joint turbulent flow is gathered
And technology removes the devices and methods therefor of fine particle,
Background technology
The energy resource structure of China is based on coal, but the fossil fuel such as coal can discharge a large amount of particles in combustion
Thing, wherein that harm maximum is exactly PM2.5.Studies have found that PM2.5It is one of major pollutants to Health Impact maximum,
It is main to trigger chronic disease, breathing problem and cardiovascular and cerebrovascular disease.
Current coal-burning power plant of China generally uses electrostatic precipitator, its removal efficiency to bulky grain thing up to 99.9%,
But fine particle but can not be effectively removed, therefore coal-burning power plant is considered as PM2.5Maximum emission source.Existing dedusting sets
Standby efficiency of dust collection total including sack cleaner, electrostatic precipitator, wet cottrell etc. is higher, but to PM2.5Removal efficiency
It is relatively low, it is impossible to meet increasingly strict environmental requirement.
General acoustic agglomeration technology to the reunion limited efficacy of fine particle, if further improving reunion efficiency
Need to increase sound pressure level, increase energy consumption increased noise pollution simultaneously.The present invention uses low frequency 1000~2000Hz strong sound waves high
Flue gas is pre-processed with turbulent flow coalescence technical tie-up effect, fine particle reunion efficiency is improved, in conjunction with conventional dust removal device
Bulky grain after reunion is removed, so as to reach efficient removal PM2.5The purpose of fine particulates.
The content of the invention
Device and its side it is an object of the present invention to provide a kind of acoustic agglomeration joint turbulent flow coalescence technology removing fine particle
Method, it is characterised in that the device of the acoustic agglomeration joint turbulent flow coalescence technology removing fine particle includes acoustic agglomeration room, pressure
Contracting formula drives sound source, flow-disturbing cylinder, gas approach pipeline and exhanst gas outlet pipeline；The gas approach pipeline, acoustic agglomeration room,
Exhanst gas outlet pipeline and deduster are sequentially connected in series；The exterior top surface of acoustic agglomeration room is provided with single or multiple compression driving sound
Source；Acoustic agglomeration chamber interior is horizontally disposed flow-disturbing cylinder.
Described flow-disturbing cylinder is cylinder, and array arranges that its effect is turbulization.
It is 1000~2000Hz that the compression drives the frequency of sound source, and sound pressure level is 120~150dB.
The outlet of the exhanst gas outlet pipeline is connected with deduster.
The method of acoustic agglomeration joint turbulent flow coalescence technology removing fine particle is：
Ash-laden gas enters acoustic agglomeration room through gas approach pipeline, compression drive sound source send frequency for 1000~
2000Hz, sound pressure level is the sound wave of 120~150dB, and frequency and sound pressure level are adjustable；Due to being provided with water in acoustic agglomeration room
Flat, array arrangement flow-disturbing cylinder, when ash-laden gas is by flow-disturbing cylinder, can form turbulent flow, the fine particle in ash-laden gas
Reunite under the synergy of sound field and turbulent flow coalescence, fine particle is agglomerated into particle diameter more than fine particle PM2.5Reunion
Particle, is exported to deduster by exhanst gas outlet pipeline.
Residence time of the described ash-laden gas entered in acoustic agglomeration room by gas approach pipeline in sound field for 2~
5s。
Compared with the existing technology, the beneficial effects of the invention are as follows：
(1) Fine Particles efficiency is improved：Turbulent flow coalescence technology is combined in coal-fired plant flue gas using acoustic agglomeration
Fine particle is pre-processed, and by sound field and the efficient coupling of turbulent flow, sound wave driving force, Van der Waals force, electrostatic force etc. are mutually
Under effect, fine particle is agglomerated into larger particles, in conjunction with follow-up traditional cleaner efficient removal PM2.5, so as to reduce
PM2.5Discharge.
(2) reducing energy consumption：Compared to simple acoustic agglomeration, turbulent flow coalescence technology is introduced, thin can be greatly improved
The reunion efficiency of grain thing.Identical removal effect is reached, required sound pressure level can be greatly reduced, thus can reduce sound wave group
Poly- energy consumption.
Brief description of the drawings
Fig. 1 is the schematic device that acoustic agglomeration joint turbulent flow coalescence technology removes fine particle.
The top view that Fig. 2 is.
In figure：Gas approach pipeline 1, compression drives sound source 2, acoustic agglomeration room 3, flow-disturbing cylinder 4, exhanst gas outlet pipeline
5th, deduster 6.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of device of acoustic agglomeration joint turbulent flow coalescence technology removing fine particle includes sound wave
Reunion room 3, compression drives sound source 2, flow-disturbing cylinder 4, gas approach pipeline 1 and exhanst gas outlet pipeline 5；The flue gas inlet tube
Road 1, acoustic agglomeration room 3, exhanst gas outlet pipeline 5 and deduster 6 are sequentially connected in series；Exterior top surface in acoustic agglomeration room 3 is provided with list
Individual or multiple compressions drive sound source 2；The inner horizontal of acoustic agglomeration room 3 is disposed with flow-disturbing cylinder 4；The flow-disturbing cylinder 4 is circle
Cylindricality, array arrangement, its effect is turbulization.Described compression drives sound source 2, and its frequency is 1000~2000Hz, sound
It is 120~150dB to arbitrarily downgrade.The outlet of the exhanst gas outlet pipeline 5 is connected with deduster 6.
The method of acoustic agglomeration joint turbulent flow coalescence technology removing fine particle is：Ash-laden gas is through gas approach pipeline 1
Into acoustic agglomeration room 3, compression drives sound source 2 to send frequency for 1000~2000Hz, and sound pressure level is the sound of 120~150dB
Ripple, frequency and sound pressure level can adjust；Due to being provided with the flow-disturbing cylinder 4 of level, array arrangement, dust-laden in acoustic agglomeration room 3
When flue gas is by flow-disturbing cylinder 4, turbulent flow can be formed, synergy of the fine particle in ash-laden gas in sound field and turbulent flow coalescence
Lower to reunite, fine particle is agglomerated into particle diameter more than fine particle PM2.5Agglomerated particle, exported by exhanst gas outlet pipeline 5
To deduster 6.
It is 2~5s by residence time of the gas approach pipeline 1 into the ash-laden gas in acoustic agglomeration room 3 in sound field.
The main acoustic agglomeration using design of the invention combines the device of turbulent flow coalescence technology, and pre- place is carried out to ash-laden gas
Manage, specific technical characterstic is：
(1) determination of sound field：Frequency of source does not influence sound field to be formed, it is contemplated that frequency of source is to fine particle agglomerating effect
Influence, by frequency of source control between 1000~2000Hz, fine particle can reunite under this frequency.Consideration sound
Source stability and energy consumption, sound pressure level are controlled between 120~150dB.
(2) arrangement of flow-disturbing cylinder：Flow-disturbing cylinder is cylinder, array arrangement, the purpose is to work as ash-laden gas by disturbing
During stream cylinder, turbulization；Flow-disturbing cylinder in-line arrangement, reduces the resistance that flow-disturbing cylinder is produced.
(3) acoustic agglomeration chamber size determines：The acoustic agglomeration the best use of time is 2~5s, and the time is too short, and agglomerating effect is not
It is good；Overlong time, agglomerating effect is not obviously improved and takes up an area too greatly, therefore determines acoustic agglomeration room chi according to flue dust flow
It is very little, it is ensured that residence time of the ash-laden gas in sound field is 2~5s.
(4) course of work：Start sound source, sound source is adjusted to required operating mode, ash-laden gas is flowed through from smoke inlet pipelines
Acoustic agglomeration room, the turbulization at the flow-disturbing cylinder of reunion chamber interior arrangement, fine particle combines work sound field and turbulent flow
Reunited with lower, form larger particles, then it is removed by follow-up conventional dust removal device.
Claims (5)
1. a kind of acoustic agglomeration joint turbulent flow coalescence technology removes the device of fine particle, it is characterised in that：Including acoustic agglomeration
Room (3), sound source (2), flow-disturbing cylinder (4), gas approach pipeline (1) and exhanst gas outlet pipeline (5)；The gas approach pipeline
(1), acoustic agglomeration room (3), exhanst gas outlet pipeline (5) deduster (6) are sequentially connected in series；The exterior top surface of acoustic agglomeration room (3) sets
There are single or multiple compressions to drive sound source (2)；Acoustic agglomeration room (3) inner horizontal is disposed with flow-disturbing cylinder (4).
2. acoustic agglomeration joint turbulent flow coalescence technology according to claim 1 removes the device of fine particle, and its feature exists
In：The flow-disturbing cylinder (4) is that array arranges that its effect is turbulization.
3. acoustic agglomeration joint turbulent flow coalescence technology according to claim 1 removes the device of fine particle, and its feature exists
In：It is 1000~2000Hz that the compression drives sound source (2) frequency, and sound pressure level is 120~150dB.
4. the removing of the device of acoustic agglomeration joint turbulent flow coalescence technology removing fine particle is thin described in a kind of usage right requirement 1
The method of particulate matter, it is characterised in that：
Ash-laden gas enters acoustic agglomeration room (3) through gas approach pipeline (1), and compression driving sound source (2) sends frequency and is
1000~2000Hz, sound pressure level is the sound wave of 120~150dB, and frequency and sound pressure level are adjustable；Due in acoustic agglomeration room (3)
Interior level, array are disposed with flow-disturbing cylinder (4), when ash-laden gas is by flow-disturbing cylinder (4), turbulent flow can be formed, in ash-laden gas
Fine particle reunite under the synergy of sound field and turbulent flow coalescence, fine particle is agglomerated into particle diameter more than fine particle
PM2.5Agglomerated particle, exported to deduster (6) by exhanst gas outlet pipeline (5).
5. the method for removing fine particle according to claim 4, it is characterised in that：Enter entering tone through gas approach pipeline (1)
The residence time of ash-laden gas in ripple reunion room (3) in sound field is 2~5s.
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| CN201710182310.3A CN106861352A (en) | 2017-03-24 | 2017-03-24 | Acoustic agglomeration joint turbulent flow coalescence technology removes the devices and methods therefor of fine particle |
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| CN201710182310.3A CN106861352A (en) | 2017-03-24 | 2017-03-24 | Acoustic agglomeration joint turbulent flow coalescence technology removes the devices and methods therefor of fine particle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211624A (en) * | 2018-01-22 | 2018-06-29 | 长沙理工大学 | The sub- spray reinforcing particulate matter aggregation device of scroll casing type sound wave synergic air swirl |
| CN108261874A (en) * | 2018-01-30 | 2018-07-10 | 东南大学 | Multistage sound field coupling field of turbulent flow removing coal-fired flue-gas PM2.5Device and method |
| CN108704421A (en) * | 2018-09-02 | 2018-10-26 | 宁波工程学院 | The particulate matter coalescence device and technique of bipolar charge and sound wave synergistic effect |
| CN110385037A (en) * | 2019-07-19 | 2019-10-29 | 浙江百能科技有限公司 | One kind being suitable for high concentrate dust, high-temperature fluctuates flue gas SCR denitration device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07742A (en) * | 1992-11-30 | 1995-01-06 | Voest Alpine Ind Anlagenbau Gmbh | Method for cooling and cleaning gas containing ultrafine particle, especially blast furnace gas or producer gas and apparatus for cooling and cleaning it |
| CN103706219A (en) * | 2013-12-26 | 2014-04-09 | 浙江大学 | Device for removing fine particles by joint action of acoustic agglomeration and mist spray and method of device |
| CN104689675A (en) * | 2015-02-12 | 2015-06-10 | 中国计量学院 | Device and method for removing fine particulate matters by acoustic agglomeration with flying ash recirculating |
| CN204816888U (en) * | 2015-06-29 | 2015-12-02 | 浙江大学 | Electric field action desorption fine particles's device is united to sound wave |
| CN105597477A (en) * | 2016-03-23 | 2016-05-25 | 河北工业大学 | Device and method for removing ultrafine particles in flue gas of coal boiler |
| CN106512633A (en) * | 2016-12-19 | 2017-03-22 | 青岛大学 | Turbulent flow and chemical agglomeration coupling fine particle agglomeration device |
-
2017
- 2017-03-24 CN CN201710182310.3A patent/CN106861352A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07742A (en) * | 1992-11-30 | 1995-01-06 | Voest Alpine Ind Anlagenbau Gmbh | Method for cooling and cleaning gas containing ultrafine particle, especially blast furnace gas or producer gas and apparatus for cooling and cleaning it |
| CN103706219A (en) * | 2013-12-26 | 2014-04-09 | 浙江大学 | Device for removing fine particles by joint action of acoustic agglomeration and mist spray and method of device |
| CN104689675A (en) * | 2015-02-12 | 2015-06-10 | 中国计量学院 | Device and method for removing fine particulate matters by acoustic agglomeration with flying ash recirculating |
| CN204816888U (en) * | 2015-06-29 | 2015-12-02 | 浙江大学 | Electric field action desorption fine particles's device is united to sound wave |
| CN105597477A (en) * | 2016-03-23 | 2016-05-25 | 河北工业大学 | Device and method for removing ultrafine particles in flue gas of coal boiler |
| CN106512633A (en) * | 2016-12-19 | 2017-03-22 | 青岛大学 | Turbulent flow and chemical agglomeration coupling fine particle agglomeration device |
Non-Patent Citations (1)
| Title |
|---|
| 杨振楠: "声场作用下的燃煤飞灰可吸入颗粒的团聚研究", 《中国优秀硕士学位论文全文数据库Ⅰ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211624A (en) * | 2018-01-22 | 2018-06-29 | 长沙理工大学 | The sub- spray reinforcing particulate matter aggregation device of scroll casing type sound wave synergic air swirl |
| CN108211624B (en) * | 2018-01-22 | 2020-08-04 | 长沙理工大学 | Volute type sound wave and pneumatic cyclone spray coordinated particle coalescence strengthening device |
| CN108261874A (en) * | 2018-01-30 | 2018-07-10 | 东南大学 | Multistage sound field coupling field of turbulent flow removing coal-fired flue-gas PM2.5Device and method |
| CN108704421A (en) * | 2018-09-02 | 2018-10-26 | 宁波工程学院 | The particulate matter coalescence device and technique of bipolar charge and sound wave synergistic effect |
| CN110385037A (en) * | 2019-07-19 | 2019-10-29 | 浙江百能科技有限公司 | One kind being suitable for high concentrate dust, high-temperature fluctuates flue gas SCR denitration device and method |
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Application publication date: 20170620 |
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