CN106731432A - Combined tubular type coalescer - Google Patents
Combined tubular type coalescer Download PDFInfo
- Publication number
- CN106731432A CN106731432A CN201611225224.8A CN201611225224A CN106731432A CN 106731432 A CN106731432 A CN 106731432A CN 201611225224 A CN201611225224 A CN 201611225224A CN 106731432 A CN106731432 A CN 106731432A
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- Prior art keywords
- coalescence
- area
- horizontal stripe
- coalescer
- nozzle
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
Abstract
Combined tubular type coalescer, in duct type, it is adapted to mount in the admission line before main body deduster, coalescer by charging area and coalescence district's groups into, there is one group of positive and negative alternate parallel channels charging area, negative plate, positive plate and the insulation board for separating inside are set, the dust granules in flue gas enter coalescence area after charged；4 groups of horizontal stripes are provided with coalescence area, horizontal stripe is horizontally placed in coalescence area, the section configuration of horizontal stripe is angular and circle, and alternate combinations successively；Processed into main body deduster through the flue gas after coalescence.The present invention is with strong points, adapt to wide, simple structure, good reliability.
Description
Technical field
The invention belongs to flue gas ash removal process field, it is related to a kind of combined tubular type coalescer.
Background technology
In recent years, China big and medium-sized cities haze weather is more and more, has had a strong impact on working healthily and the life of city dweller
It is living, wherein PM in urban environment2.5(predominantly PM0.4-1.0) too high levels are to cause the main cause of haze weather.Therefore, such as
What control PM2.5Produce, and reduce its presence, as problem demanding prompt solution.
Chinese patent CN101664623A discloses the ultrafine particle deduster for being related to administer for industrial fumes.Specifically
Improved by the electric-bag complex dust collector to existing cascade filtration mode, in the outlet and the import of air-introduced machine of filter bag dedusting mechanism
Between be provided with turbulent eddy mechanism, the turbulent eddy mechanism include turbulent eddy room, flue dust inlet tube and flue dust outlet.Turbulent flow
Vortex chamber is down the bucket-shaped of isosceles trapezoid for cross section, and its bottom is connected to grey small room.By second level treatment containing thinner
The flue dust of particulate matter enters flue dust inlet tube, by wind deflector, deflects down air-flow, into turbulent eddy room, more carefully
Particulate matter produces diffusion and collision to promote minuteness particle to precipitate with turbulent eddy chamber interior walls, fine particle is separated from flue dust
Out.But the materialization coalescence of fine particle is individually carried out in the handling process with turbulent eddy room, coalescence efficiency is not high.
Chinese patent CN103071591A discloses a kind of knockouts and produces whirlpool device, including frame, motor, is driven by motor
Driving shaft, driven shaft, be provided with least one driving chain between driving shaft and driven shaft, the driving chain is provided with product whirlpool
Piece, the frame by the product votex sheet is provided with deashing device.But votex sheet excessively influences flue gas excessively stream speed, increased knockouts
Pressure drop.
Thus, for coalescence is inefficient, complex process equipment the problems such as, it is necessary on the basis of existing technology,
The ultra-fine grain coalescer of research and development reinforcing coalescence.On the basis of traditional deduster, coalescence processing unit is set up, make to surpass
Fine particle, into larger particles, is existing so as to smoothly be removed in main body deduster by physical method or physical chemistry method coalescence
In the trend of dedusting technology development.
The content of the invention
Goal of the invention：The invention aims to solve the deficiencies in the prior art, a kind of with strong points, adaptive surface is proposed
Extensively, simple structure, the coalescer of the reinforcing coalescence of good reliability.
Technical scheme：In order to realize the purpose of the present invention, the present invention is adopted the following technical scheme that.
Combined tubular type coalescer, whole coalescer is in duct type, is adapted to mount to the air inlet pipe before main body deduster
In road；Coalescer by charging area and coalescence district's groups into；There is one group of positive and negative alternate parallel channels charging area, inside sets negative plate, just
Pole plate and the insulation board for separating, the dust granules in flue gas enter coalescence area after charged；Coalescence is provided with 2 ~ 4 in area
Group horizontal stripe, horizontal stripe is horizontally placed in coalescence area, and the section configuration of horizontal stripe is angular and circle, and alternate combinations successively；Through coalescence it
Flue gas afterwards is processed into main body deduster.
Further, the every group of horizontal stripe for being set in coalescence area is arranged above and below, and the angular opening angle of horizontal stripe is 70 ~ 120 degree；
The height of horizontal stripe is 10 ~ 25cm；The section configuration that alternate intervals are set is circular horizontal stripe, circular a diameter of 10 ~ 25cm；Angle
Shape is consistent with the height of circle；Spacing between adjacent two horizontal stripes takes 1.0 ~ 2.0 times of horizontal stripe height；Two adjacent groups horizontal stripe
Between spacing take 1.0 ~ 2.0 times of horizontal stripe section length, shifted to install between two adjacent groups horizontal stripe.
Further, in the porch in coalescence area, vertically arranged one group of nozzle, nozzle is connected by pipeline with air pump, can
The adsorbents such as activated carbon are sprayed into coalescence area by guiding tube through nozzle.
Further, in the porch in coalescence area, vertically arranged one group of nozzle is filled coalescence accelerator and water by with liquid pump
Divide mixing, after mixed coalescence accelerator solution is through atomization, nozzle is accessed by guiding tube, spray into coalescence area, form mist cloud.
Coalescer operation principle：Air-flow first passes around bipolar charge area, bipolar charge area have one group it is positive and negative alternate parallel
Passage, when dust passes through, by the positive or negative of its passage, obtains positive charge or negative electrical charge respectively.So, powder dust particle half lotus is being just
Electricity, half bear electricity.Subsequently into coalescence area, the particle of positively charged and electronegative particle are at " electrostatic force coalescence ", " turbulent flow is coagulated
And " and the collective effect of " chemical coalescence " under collide cohesion, ultra-fine grain becomes bulky grain, abbreviation particle coarsening；Then enter
Enter to succeeding body deduster（Electric cleaner or sack cleaner）Inside, the particle of coarsening is easy to deduster to gather dust, so
Just the discharge of fine particle is reduced.
" turbulent flow coalescence " refers to the change that flue gas stream is caused by special construction, forms the state close to turbulent flow.It is solidifying
And major influence factors be granular size, particle cohesion performance and collision probability.In pending flue dust, big grain is had no lack of
Son, big particle can be big with ultrafine particle collision knot as core.Cohesion performance aspect：Air-flow first passes around bipolar charge area,
Positive charge or negative electrical charge are obtained respectively.So, powder dust particle half lotus positive electricity, half bear electricity, in coalescence area, the grain of positively charged
Sub and electronegative particle has good coalescence performance under " electrostatic force " effect.Turbulent flow considerably increases touching for particle in flue gas
Hit probability.Due to the special tectonic of coalescer so that branch's air-flow intersection turns into the main generating region of turbulent flow coalescence in coalescer
Domain.On the basis of electrostatic force and chemical coalescence, further by turbulent flow coalescence, overall coalescence effect is enhanced.Air-flow leads to
It is streamlined when crossing circular horizontal stripe, reduce pressure drop while turbulent flow coalescence is formed.
Chemical coalescence principle：The coalescence accelerator of penetrating is formed with certain angle of flare after crushing under atomizer effect
The mist cloud of degree and surface with adhesion activity higher, mist cloud is adsorbed in fly ash granule surface, liquid bridge is produced between particles,
In flue before sack cleaner, and then Gu Qiao is converted into, promotes particle coalescence, fine particle is formed larger agglomerate, with
And fine particle is adsorbed by coarse granule.
The acticarbon injection apparatus that the present invention is used, is to spray into powdered active carbon before particle coalescence, is passed through
The suction-operated of acticarbon removes the mercury in flue gas.It is the most effective removal of mercury that acticarbon is sprayed into flue gas
One of method.Adsorbent is that the cellular that is formed after the modified activation of flyash with certain phosphorus content, specific surface area are enriched
Particulate matter, while having physics and chemisorbed function, its average grain diameter is in 20 μm or so, specific surface area>55m2/ g, flying dust
Phosphorus content is 6% ~ 7% or so.
Beneficial effect：The device that the present invention is provided is compared with advantages below with existing apparatus.
（1）By special tectonic provided by the present invention, various coalescence synergies improve coalescence efficiency, PM2.5Account for
, compared with declining 30% ~ 50% before coalescence, mass concentration is compared with decline 10 ~ 20% before coalescence for the number concentration of particle in flue dust.
（2）The present invention mainly carries out coalescence by before main body dust arrester to superfine particulate matter, enables in main body
Removed in the presence of deduster, the device that the present invention is provided can improve removing effect of the main body deduster to superfine particulate matter
Rate, reduces the discharge of ultra-fine flue dust.Can be under conditions of the working condition of equal main body deduster and collection mode, flue dust
Middle PM2.5Clearance improves 30% ~ 50%.
（3）The each several part of coalescer provided by the present invention, rationally, function is compatible to be matched subregion.
（4）Coalescer provided by the present invention is main body deduster（Electric cleaner or sack cleaner）Volume reduction create
Condition.
（5）Coalescer provided by the present invention substantially reduces PM2.5And the discharge of the toxic heavy metal such as mercury.
（6）Coalescer provided by the present invention is vdiverse in function, flexible adjustment, the adsorbent reinforcement such as the penetrating activated carbon removal of mercury,
The toxic heavy metals such as arsenic, spraying into chemical polymeric sorbent can reinforcing coalescence effect；With the system phase of multi-pollution control
Than, realize it is multi-functional under the premise of, reduce investment, simplify operation, drag losses is small, pressure reduction, reduce energy consumption,
Operating cost is low.
（7）It is easy for installation, adapt to it is wide, before being suitable to various main body dedusters pre-process, also improve electric cleaner or
Adaptability of the sack cleaner to various different industrial fumes.
Brief description of the drawings
The combined tubular type coalescer organigram that Fig. 1 is provided for the present invention.
Fig. 2 is ultra-fine grain coalescence principle schematic in the present invention.
In Fig. 1, in 2：1:Charging area, 2:Coalescence area, 3:Negative plate, 4:Insulation board, 5:Positive plate, 6：Angular horizontal stripe, 7：
Guiding tube, 8:Nozzle, 9:Particle before coalescence, 10:Big particle, 11 are tied after coalescence:Circular horizontal stripe, A:Turbulent flow coalescence is main
Generation area.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated.
Embodiment 1
Certain industrial fumes waste gas, treating capacity is 80000m3/ h uses combined tubular type coalescer.Whole coalescer is in duct type,
Installed in main body deduster-electric cleaner, in admission line before；Coalescer by bipolar charge area and coalescence district's groups into；It is double
There is one group of positive and negative alternate parallel channels pole charging area, inside sets negative plate, positive plate and the insulation board for separating, flue gas
In dust after charged enter coalescence area；4 groups of horizontal stripes are provided with coalescence area, the section configuration of horizontal stripe is angular and circle,
And alternate combinations successively；Processed into main body deduster through the flue gas after coalescence.
The every group of horizontal stripe set in coalescence area is arranged above and below, and the angular opening angle of horizontal stripe is 90 degree；The height of horizontal stripe is
15cm；The section configuration that alternate intervals are set is circular horizontal stripe, circular a diameter of 15cm；Between between adjacent two horizontal stripes
Away from taking 1.5 times of horizontal stripe height；Spacing between two adjacent groups horizontal stripe takes 1.5 times of horizontal stripe section length, two adjacent groups horizontal stripe
Between shift to install.In fig. 2, A is the region that turbulent flow coalescence mainly occurs.
In the porch in coalescence area, one group of nozzle is set, is sufficiently mixed coalescence accelerator and water by with liquid pump, after mixing
Coalescence accelerator solution through atomization after, nozzle is accessed by guiding tube, spray into coalescence area, form mist cloud.Coalescence accelerator accounts for
The mass percent of water is 1.5%；It is 0.1% that coalescence accelerator solution flow accounts for flue gas flow percent by volume.At electric precipitation
Flue gas after reason, the flue gas that discharge standard is reached after air-introduced machine is by purification is discharged from aiutage.
Being processed using the device makes ultra-fine flue dust coalescence into the particle of greater particle size, and is taken off by electrostatic precipitator
Remove, can be under conditions of the working condition and collection mode for not influenceing electrostatic precipitator, PM in flue dust2.5Clearance is improved
50%.The coalescence accelerator for being sprayed into forms the mist cloud with adhesion activity higher after crushing under atomizer effect, promotes
Particle coalescence, PM in flue dust2.5Clearance is improved.The ultra-fine grain coalescer provided using the present invention, carries out reinforcing coalescence, after
Main body deduster is connect, the whole total efficiency of dust collection more than 99.98% of technique, dust contained flue gas concentration of emission is less than 30mg/Nm3, discharge cigarette
PM in gas2.5Clearance improves 50%.
Claims (4)
1. combined tubular type coalescer, it is characterised in that：Whole coalescer is in duct type, before being adapted to mount to main body deduster
Admission line in；Described coalescer by charging area and coalescence district's groups into；Described charging area have one group it is positive and negative alternate flat
Row of channels, inside sets negative plate, positive plate and the insulation board for separating, and the dust granules in flue gas enter coalescence after charged
Area；2 ~ 4 groups of horizontal stripes are provided with described coalescence area, horizontal stripe is horizontally placed in coalescence area, the section configuration of horizontal stripe is angular and circle
Shape, and alternate combinations successively；Processed into main body deduster through the flue gas after coalescence.
2. coalescer as claimed in claim 1, the every group of horizontal stripe set in coalescence area is arranged above and below, the angular angular aperture of horizontal stripe
Spend is 70 ~ 120 degree；The height of horizontal stripe is 10 ~ 25cm；The section configuration that alternate intervals are set is circular horizontal stripe, and circular is straight
Footpath is 10 ~ 25cm；It is angular consistent with circular height；Spacing between adjacent two horizontal stripes takes the 1.0 ~ 2.0 of horizontal stripe height
Times；Spacing between two adjacent groups horizontal stripe takes 1.0 ~ 2.0 times of horizontal stripe section length, is shifted to install between two adjacent groups horizontal stripe.
3. coalescer as claimed in claim 1, in the porch in coalescence area, vertically arranged one group of nozzle, nozzle passes through pipeline
It is connected with air pump, the adsorbents such as activated carbon can be sprayed into coalescence area by guiding tube through nozzle.
4. coalescer as claimed in claim 1, in the porch in coalescence area, vertically arranged one group of nozzle, by will be solidifying with liquid pump
And accelerator and water are sufficiently mixed, after mixed coalescence accelerator solution is through atomization, nozzle is accessed by guiding tube, sprayed into solidifying
And area, form mist cloud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225224.8A CN106731432A (en) | 2016-12-27 | 2016-12-27 | Combined tubular type coalescer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225224.8A CN106731432A (en) | 2016-12-27 | 2016-12-27 | Combined tubular type coalescer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106731432A true CN106731432A (en) | 2017-05-31 |
Family
ID=58921163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611225224.8A Withdrawn CN106731432A (en) | 2016-12-27 | 2016-12-27 | Combined tubular type coalescer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106731432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479285A (en) * | 2018-06-05 | 2018-09-04 | 盐城工学院 | A kind of modified ultra-fine grain duct type coalescer |
| CN111871135A (en) * | 2020-08-07 | 2020-11-03 | 盐城工学院 | Oval horizontal bar pipeline type ultrafine particle condenser |
| CN111871141A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Fan-shaped pipeline type ultrafine particle condenser |
| CN111871137A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Diamond pipeline type ultrafine particle condenser |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919696A (en) * | 1987-10-30 | 1990-04-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Supercooling type mist eliminator apparatus |
| CN201329311Y (en) * | 2008-12-23 | 2009-10-21 | 兰州电力修造厂 | Bipolar high-voltage electrostatic coagulator |
| CN104812464A (en) * | 2012-06-15 | 2015-07-29 | 卡本科斯特集团有限公司 | Magnetic adsorbents, methods for manufacturing a magnetic adsorbent, and methods of removal of contaminants from fluid streams |
| CN104801420A (en) * | 2015-05-13 | 2015-07-29 | 东南大学 | Device and method for increasing grain size of PM2.5 (particulate matter2.5) through turbulent flow and chemical agglomeration coupling |
-
2016
- 2016-12-27 CN CN201611225224.8A patent/CN106731432A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4919696A (en) * | 1987-10-30 | 1990-04-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Supercooling type mist eliminator apparatus |
| CN201329311Y (en) * | 2008-12-23 | 2009-10-21 | 兰州电力修造厂 | Bipolar high-voltage electrostatic coagulator |
| CN104812464A (en) * | 2012-06-15 | 2015-07-29 | 卡本科斯特集团有限公司 | Magnetic adsorbents, methods for manufacturing a magnetic adsorbent, and methods of removal of contaminants from fluid streams |
| CN104801420A (en) * | 2015-05-13 | 2015-07-29 | 东南大学 | Device and method for increasing grain size of PM2.5 (particulate matter2.5) through turbulent flow and chemical agglomeration coupling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479285A (en) * | 2018-06-05 | 2018-09-04 | 盐城工学院 | A kind of modified ultra-fine grain duct type coalescer |
| CN111871135A (en) * | 2020-08-07 | 2020-11-03 | 盐城工学院 | Oval horizontal bar pipeline type ultrafine particle condenser |
| CN111871141A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Fan-shaped pipeline type ultrafine particle condenser |
| CN111871137A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Diamond pipeline type ultrafine particle condenser |
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Application publication date: 20170531 |
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