CN103736356B - The device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound - Google Patents
The device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound Download PDFInfo
- Publication number
- CN103736356B CN103736356B CN201410010340.2A CN201410010340A CN103736356B CN 103736356 B CN103736356 B CN 103736356B CN 201410010340 A CN201410010340 A CN 201410010340A CN 103736356 B CN103736356 B CN 103736356B
- Authority
- CN
- China
- Prior art keywords
- dust removal
- conventional dust
- flue
- fine particle
- sound
- 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
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention discloses the device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound, mainly comprise flue, sound source and conventional dust removal device, adopt sonic agglomeration to combine with conventional dust removal technology, condense fine particle can be sucked in flue gas and remove; Concrete structure is lay line source or area source of sound at flue four sides or two adjacent surfaces, and sound source coverage rate should meet flue gas along the length in flow of flue gas direction and to move in sound field 2 ~ 5s, flue afterbody installing conventional dust removal device.Flue gas flows through the flue arranging sound source, fine particle can be sucked in sound field in flue gas, the various mechanism of acoustic agglomeration impel small particle to be adsorbed onto bulky grain thing or small particle coacervating large particle thing, then through conventional dust removal device, effectively can remove and can suck fine particle.
Description
Technical field
The present invention relates to the device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound, sonic agglomeration technology is combined with conventional dust removal technology, for removing fine particle (PM
2.5).
Background technology
Fine particle (PM
2.5) refer to that aerodynamic diameter is less than or equal to the sucked fine particulates of 2.5 μm, mainly result from the high-temp combustion process in the industries such as traffic, manufacture, the energy.Along with the development of economic society, industrialization degree improves, and the content that can suck fine particle in air is also more and more higher.On the other hand, fine particle (PM can be sucked
2.5) because its specific area is comparatively large, be easy to the toxic heavy metal in enriched air, acidic oxide, organic pollution, bacterium and virus, the health of serious harm people.Be of great significance so effectively remove fine particle tool.
Fine particle removing device a kind ofly can be less than or equal to the device of the fine particle of 2.5 μm by the particle diameter effectively removed in flue gas.Conventional flue gas processing device comprises mechanical collector, wet scrubber, electrostatic precipitator and sack cleaner etc., and they all effectively can remove thick multi-modal particle, but for fine particle (PM
2.5) removal efficiency lower.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound, sound field is set before conventional dust removal equipment as pretreatment facility, make the fine particle in flue gas in the various mechanism of acoustic agglomeration, small particle is adsorbed onto bulky grain thing surface or small particle coacervating large particle thing, and then removed in conventional dust removal equipment, can effectively remove fine particle (PM
2.5).
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
The device removing fine particle of sonic agglomeration-conventional dust removal compound, comprises cuboid flue, sound source and conventional dust removal device:
Described flue is vertically placed, and flue gas flows from top to bottom in flue, and the cross section of flue is square, and the sound wave that the described foursquare length of side meets sound source forms standing-wave sound field in cross section:
Wherein, f
nfor the frequency that sound source adopts, n=1,2,3, for resonance exponent number (artificially can select, according to actual conditions, be the bigger the better), c is that (temperature affects the velocity of sound to local velocity of sound, different temperature has two places, and a place is ambient temperature, and a place is that flue gas is by the temperature in flue during flue, local velocity of sound herein refers to that flue gas is by the velocity of sound corresponding to the temperature in flue during flue), L
xfor the foursquare length of side;
Described sound source is line source or area source of sound: be divided into four groups to be arranged symmetrically on four sides of flue, forms standing-wave sound field; Or be divided into two groups to be arranged on two adjacent sides of flue, form standing-wave sound field by reflective sound wave;
Described conventional dust removal device is arranged on the lower end of flue.
The present invention requires higher to the sound pressure level of sound source, and preferably, described sound source is area source of sound, adopts loudspeaker closely spaced array to be arranged in a plane and forms one group.
Preferably, described sound source is made up of loudspeaker, and the sidewall of flue is provided with perforate, and described loudspeaker arrangement is in perforate.
Preferably, along the length in flow of flue gas direction, the sound wave area coverage of described sound source should ensure that flue gas moves 2 ~ 5s in sound field.
Described conventional dust removal device is mechanical collector, wet scrubber, electrostatic precipitator or sack cleaner; Preferably, described conventional dust removal device is electrostatic precipitator, should ensure that the flue gas after sound field reflecting enters into electrostatic precipitator immediately and carries out removing of fine particle.
Foursquare length of side L
x, sound source adopt frequency f
nand there is quantitative relation between this three of resonance exponent number n, can the third party be calculated both wherein; Consider actual conditions, foursquare length of side L
xshould control within 1m; Preferably between 0.5 ~ 1m.
The frequency f that sound source adopts
nselection relevant with the characteristic of sound source itself, different sound sources has the frequency range of its feature, and for loudspeaker, its scope is roughly within 5000Hz.
Beneficial effect: the device removing fine particle of sonic agglomeration provided by the invention-conventional dust removal compound, flue gas flows through the flue arranging sound source, fine particle can be sucked in sound field in flue gas, the various mechanism of acoustic agglomeration impel small particle to be adsorbed onto bulky grain thing or small particle coacervating large particle thing, again through conventional dust removal device, the fine particle that conventional dust removal device is difficult to remove effectively can be removed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of standing-wave sound field in flue.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 the device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound, comprise cuboid flue 1, sound source 2 and conventional dust removal device 3.
Described flue 1 is vertically placed, and flue gas flows from top to bottom in flue 1, and the cross section of flue 1 is square, and the sound wave that the described foursquare length of side meets sound source 2 forms standing-wave sound field in cross section:
Wherein, f
nfor the frequency that sound source 2 adopts, n=1,2,3 ... for resonance exponent number, c is local velocity of sound, L
xfor the foursquare length of side.From above formula, foursquare length of side L
x, sound source adopt frequency f
nand there is quantitative relation between this three of resonance exponent number n, can the third party be calculated both wherein; Consider actual conditions, foursquare length of side L
xshould control within 1m; Preferably between 0.5 ~ 1m.Resonance exponent number n can artificially select, and according to actual conditions, is the bigger the better.The frequency f that sound source adopts
nselection relevant with the characteristic of sound source itself, different sound sources has the frequency range of its feature, and this case adopts loudspeaker structure sound source 2, and for loudspeaker, its scope is roughly within 5000Hz.
Described sound source 2 is line source or area source of sound: be divided into four groups to be arranged symmetrically on four sides of flue 1, forms standing-wave sound field; Or be divided into two groups to be arranged on two adjacent sides of flue 1, form standing-wave sound field by reflective sound wave.The sound source 2 that this case adopts is four groups of area source of sound, adopts loudspeaker closely spaced array to be arranged in a plane and forms one group; The sidewall of flue 1 is provided with perforate, and described loudspeaker arrangement is in perforate.Along the length in flow of flue gas direction, the sound wave area coverage of described sound source 2 should ensure that flue gas moves 2 ~ 5s in sound field.
Described conventional dust removal device 3 is arranged on the lower end of flue 1, existing mechanical collector, wet scrubber, electrostatic precipitator or sack cleaner can be adopted, this case adopts electrostatic precipitator, require that the flue gas after sound field reflecting enters into electrostatic precipitator immediately and carries out removing of fine particle, make to adsorb in sound field and can enter into electrostatic precipitator immediately after bulky grain logistics that the bulky grain thing of fine particle or fine particle be condensed into goes out sound field and carry out removing separation.
Sound field part in this device is the pretreatment unit to flue gas, its advantage be can make in flue gas can not by conventional dust removal device 3 removes or removal efficiency is lower fine particle under the effect of sound field, be adsorbed on bulky grain thing or coacervating large particle thing, then remove in conventional dust removal device 3.
When using this device, as Fig. 2, sound source 2 forms standing-wave sound field in flue 1, is configured to be similar to a network structure 4.Flue gas flows in sound field, and under the effect of sound field power, the particle of various particle diameter moves to each node location, adsorb, coacervating large particle thing, flows into conventional dust removal device carry out removing, being separated with fluid.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the device removing fine particle of sonic agglomeration-conventional dust removal compound, is characterized in that: comprise cuboid flue (1), sound source (2) and conventional dust removal device (3):
Described flue (1) is vertically placed, flue gas flows from top to bottom in flue (1), the cross section of flue (1) is square, and the sound wave that the described foursquare length of side meets sound source (2) forms standing-wave sound field in cross section:
Wherein, f
nfor the frequency that sound source (2) adopts, n=1,2,3 ... for resonance exponent number, c is local velocity of sound, L
xfor the foursquare length of side;
Described sound source (2) is area source of sound, is divided into four groups to be arranged symmetrically on four sides of flue (1), and form standing-wave sound field, described standing-wave sound field is the two-dimentional standing-wave sound field of the many node of many antinodes heterogeneous; Described sound source (2) is made up of loudspeaker, and the sidewall of flue (1) is provided with perforate, and described loudspeaker arrangement is in perforate;
Described conventional dust removal device (3) is arranged on the lower end of flue (1).
2. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, is characterized in that: described sound source (2) is area source of sound, adopts loudspeaker closely spaced array to be arranged in a plane and forms one group.
3. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, is characterized in that: along the length in flow of flue gas direction, the sound wave area coverage of described sound source (2) should ensure that flue gas moves 2 ~ 5s in sound field.
4. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, is characterized in that: described conventional dust removal device (3) is mechanical collector, wet scrubber, electrostatic precipitator or sack cleaner.
5. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, it is characterized in that: described conventional dust removal device (3) is electrostatic precipitator, and the flue gas after sound field reflecting enters into electrostatic precipitator immediately and carries out removing of fine particle.
6. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, is characterized in that: described foursquare length of side L
xwithin 1m.
7. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, is characterized in that: described foursquare length of side L
xbe 0.5 ~ 1m.
8. the device removing fine particle of sonic agglomeration according to claim 1-conventional dust removal compound, is characterized in that: the frequency f that described sound source (2) adopts
nwithin 5000Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410010340.2A CN103736356B (en) | 2014-01-09 | 2014-01-09 | The device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410010340.2A CN103736356B (en) | 2014-01-09 | 2014-01-09 | The device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103736356A CN103736356A (en) | 2014-04-23 |
| CN103736356B true CN103736356B (en) | 2015-11-04 |
Family
ID=50493463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410010340.2A Expired - Fee Related CN103736356B (en) | 2014-01-09 | 2014-01-09 | The device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103736356B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949135B (en) * | 2014-04-29 | 2015-12-02 | 中国人民解放军国防科学技术大学 | For the treatment of the strong acoustic agglomeration device and method of suspended particulate |
| 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 |
| CN105032110B (en) * | 2015-08-20 | 2016-10-19 | 东南大学 | A kind of two-dimensional acoustic field migrates the device of suspended particulate substance |
| CN105498365A (en) * | 2015-12-28 | 2016-04-20 | 安徽春暖花开环境科技有限公司 | PM2.5 particle removing method |
| CN106039914A (en) * | 2016-07-14 | 2016-10-26 | 中南大学 | Parabolic spherical reflection acoustic agglomeration PM2.5 emission reduction device and method |
| CN106890730B (en) * | 2017-03-27 | 2018-06-26 | 南京信息工程大学 | A kind of resonant space particle purifying device and control method |
| CN107149862A (en) * | 2017-07-11 | 2017-09-12 | 苏州希瑞特环保科技有限公司 | Novel horizontal waste gas purification apparatus |
| CN108514790B (en) * | 2018-05-10 | 2023-10-03 | 中国计量大学 | Smoke eliminating method by hand-held fire smoke eliminator |
| CN109779633B (en) * | 2019-01-17 | 2020-12-04 | 中煤科工集团重庆研究院有限公司 | Hydraulic directional fracturing weakening method for hard roof of coal mine |
| CN109833705B (en) * | 2019-04-01 | 2024-02-27 | 中冶赛迪工程技术股份有限公司 | Device suitable for converter gas dust removal ultra-low emission based on acoustic agglomeration |
| CN110369133B (en) * | 2019-07-24 | 2021-04-09 | 武汉大学 | A dust collector is synthesized to sound electricity for belt transportation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219318A (en) * | 2007-09-18 | 2008-07-16 | 东南大学 | Apparatus and method for removing grains with combined action of sound wave and additional seed grain |
| CN101264405A (en) * | 2008-04-29 | 2008-09-17 | 东南大学 | Sound wave auxiliary composite bag type dust remover |
| CN101637683A (en) * | 2009-08-10 | 2010-02-03 | 申小中 | Acoustic agglomeration composite bag type dust removing device |
| CN101841255A (en) * | 2010-04-19 | 2010-09-22 | 东南大学 | Noise power generation device and power generation method |
| CN103418491A (en) * | 2012-05-16 | 2013-12-04 | 江苏紫光吉地达环境科技股份有限公司 | Method for improving efficiency of electric deduster for removing particulate matter 2.5 (PM2.5) dust in flue gas |
-
2014
- 2014-01-09 CN CN201410010340.2A patent/CN103736356B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219318A (en) * | 2007-09-18 | 2008-07-16 | 东南大学 | Apparatus and method for removing grains with combined action of sound wave and additional seed grain |
| CN101264405A (en) * | 2008-04-29 | 2008-09-17 | 东南大学 | Sound wave auxiliary composite bag type dust remover |
| CN101637683A (en) * | 2009-08-10 | 2010-02-03 | 申小中 | Acoustic agglomeration composite bag type dust removing device |
| CN101841255A (en) * | 2010-04-19 | 2010-09-22 | 东南大学 | Noise power generation device and power generation method |
| CN103418491A (en) * | 2012-05-16 | 2013-12-04 | 江苏紫光吉地达环境科技股份有限公司 | Method for improving efficiency of electric deduster for removing particulate matter 2.5 (PM2.5) dust in flue gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103736356A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103736356B (en) | The device removing fine particle of a kind of sonic agglomeration-conventional dust removal compound | |
| CN203265224U (en) | Exhaust gas conveying pipe for environmental protection equipment | |
| CN101720255A (en) | The process of electrostatic recirculation and the device that are used for dedusting and gas purification | |
| CN203183837U (en) | Bag type dust remover special for fine particulate matters | |
| CN103447151A (en) | Compound type electric demister as well as process and use thereof | |
| CN103752116B (en) | Device for removing fine particles by standing wave sound waves | |
| CN207253949U (en) | A kind of rapping dust removal device | |
| CN104001395A (en) | High-sound-intensity sound wave demister with frequency adjustable | |
| CN203303755U (en) | Powerless automatic dust suppression and emission reduction material guide device | |
| CN204699564U (en) | Workshop air cleaning unit | |
| CN104437903A (en) | High-efficiency cyclone dust collector | |
| CN204208382U (en) | A kind of fume dust remover | |
| CN203044472U (en) | Mobile dust removing device | |
| CN202626274U (en) | Zinc smoke sucking device | |
| CN205774733U (en) | A kind of neodymium iron boron waste material flue dust recovery device | |
| CN203254511U (en) | Dust collecting device for foamed cement plate production line | |
| CN205423346U (en) | Fan electrostatic dust collection system | |
| CN203578330U (en) | Device for removing smoke of diesel hammer pile driver | |
| CN201524605U (en) | Dedicated glass reinforced plastic hexagonal dust collecting polar tube for wet electric dust collector | |
| CN205288708U (en) | Novel electrostatic precipitator positive pole pipe | |
| CN203342940U (en) | Horizontal type high voltage static dust collector | |
| CN203750967U (en) | Coiling-on-ground type device for eliminating smoke dust of diesel hammer pile-driver | |
| CN203886368U (en) | Frequency-adjustable high-sound-intensity acoustic wave demister | |
| CN203577517U (en) | Filter drum dust collector | |
| CN203291664U (en) | Novel horizontal-type movable lateral gas dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20151104 Termination date: 20220109 |