CN106731436A - A kind of streamline ductwork formula ultra-fine grain coalescer - Google Patents
A kind of streamline ductwork formula ultra-fine grain coalescer Download PDFInfo
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- CN106731436A CN106731436A CN201611226242.8A CN201611226242A CN106731436A CN 106731436 A CN106731436 A CN 106731436A CN 201611226242 A CN201611226242 A CN 201611226242A CN 106731436 A CN106731436 A CN 106731436A
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- coalescence
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- coalescer
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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
- B01D51/04—Amassing the particles, e.g. by flocculation by seeding, e.g. by adding particles
-
- 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
- B01D51/06—Amassing the particles, e.g. by flocculation by varying the pressure of the gas or vapour
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/011—Prefiltering; Flow controlling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/013—Conditioning by chemical additives, e.g. with SO3
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
A kind of streamline ductwork formula ultra-fine grain 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；2 ~ 4 groups of horizontal stripes are provided with coalescence area, horizontal stripe is horizontally placed in coalescence area, the streamlined guided missile head of the section configuration of horizontal stripe；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 streamline ductwork formula ultra-fine grain 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 ultra-fine grain 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.
A kind of streamline ductwork formula ultra-fine grain coalescer, whole coalescer is in duct type, is adapted to mount to main body dedusting
In admission line before device；Coalescer by charging area and coalescence district's groups into；Charging area have one group it is positive and negative alternate parallel logical
Road, inside sets negative plate, positive plate and the insulation board for separating, and the dust granules in flue gas enter coalescence area after charged；
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 fairshaped guided missile
Head；Processed into main body deduster through the flue gas after coalescence.
Further, the every group of horizontal stripe for being set in coalescence area is arranged above and below, and the section configuration nose of missile length of horizontal stripe is
10 ~ 15cm, a length of 20 ~ 30 cm of horizontal component；The height of horizontal stripe is 15 ~ 30cm；Spacing between adjacent two horizontal stripes takes horizontal stripe
1.0 ~ 2.0 times of height；Spacing between two adjacent groups horizontal stripe takes 1.0 ~ 2.0 times of horizontal stripe section length, two adjacent groups horizontal stripe
Between shift to install.
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.Horizontal stripe
Section configuration is in guided missile head, and nose of missile is streamlined, is easy to airflow diversion, and streamlined stress drop is smaller.Horizontal stripe section
Horizontal component, play a part of separate air-flow and guiding air-flow.Fairshaped horizontal stripe causes that air-flow is on and off, and division is alternately entered
OK, the optimization of turbulent flow coalescence is realized.
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 angular special tectonic provided by the present invention, various coalescence synergies improve coalescence efficiency,
PM2.5The number concentration of particle in flue dust is accounted for compared with declining 30% ~ 50% before coalescence, mass concentration is compared with decline 10 ~ 20% before coalescence.
（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
A kind of streamline ductwork formula ultra-fine grain 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：Horizontal stripe, 7：Guiding
Pipe, 8:Nozzle, 9:Particle before coalescence, 10:Big particle, A are tied after coalescence:The main generation area of turbulent flow coalescence.
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 streamline ductwork formula ultra-fine grain coalescer.Whole coalescer
In duct type, installed in main body deduster-electric cleaner, in admission line before；Coalescer is by bipolar charge area and coalescence
District's groups into；There is one group of positive and negative alternate parallel channels in bipolar charge area, inside sets negative plate, positive plate and exhausted for what is separated
Listrium, the dust in flue gas enters coalescence area after charged；3 groups of horizontal stripes are provided with coalescence area, the section configuration of horizontal stripe is stream
The guided missile head of line style；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 section configuration nose of missile length of horizontal stripe is 10cm, level
A length of 20 cm in part；The height of horizontal stripe is 20cm；Spacing between adjacent two horizontal stripes takes 1.0 times of horizontal stripe height；Adjacent two
Spacing between group horizontal stripe takes 1.0 times of horizontal stripe section length, is shifted to install between two adjacent groups horizontal stripe.In fig. 2, A is rapids
The region that stream coalescence mainly occurs.
In the porch in coalescence area, be sufficiently mixed for coalescence accelerator and water by with liquid pump by vertically arranged one group of nozzle, is mixed
After coalescence accelerator solution after conjunction is through atomization, nozzle is accessed by guiding tube, spray into coalescence area, form mist cloud.Coalescence promotes
The mass percent that agent accounts for water is 1.5%；It is 0.1% that coalescence accelerator solution flow accounts for flue gas flow percent by volume.Removed through electricity
Flue gas after dirt treatment, the flue gas that discharge standard is reached after air-introduced machine is by purification is discharged from aiutage.
The ultra-fine grain coalescer provided using the present invention, carries out reinforcing coalescence, is followed by main body deduster, and whole technique is total
Efficiency of dust collection more than 99.98%, dust contained flue gas concentration of emission is less than 30mg/Nm3, PM in discharge flue gas2.5Clearance improves 50%.
Claims (4)
1. a kind of streamline ductwork formula ultra-fine grain coalescer, it is characterised in that：Whole coalescer is in duct type, is adapted to mount to
In admission line before main body deduster；Described coalescer by charging area and coalescence district's groups into；Described charging area has one
The positive and negative alternate parallel channels of group, inside set negative plate, positive plate and the insulation board for separating, the dust granules in flue gas
Enter coalescence area after charged；2 ~ 4 groups of horizontal stripes are provided with described coalescence area, horizontal stripe is horizontally placed in coalescence area, horizontal stripe it is disconnected
Face is shaped as fairshaped guided missile head；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, and the section configuration of horizontal stripe is led
Bullet head length is 10 ~ 15cm, a length of 20 ~ 30 cm of horizontal component；The height of horizontal stripe is 10 ~ 20cm；Between adjacent two horizontal stripes
Spacing take 1.0 ~ 2.0 times of horizontal stripe height；Spacing between two adjacent groups horizontal stripe takes 1.0 ~ 2.0 times of horizontal stripe section length,
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 |
|---|---|---|---|
| CN201611226242.8A CN106731436A (en) | 2016-12-27 | 2016-12-27 | A kind of streamline ductwork formula ultra-fine grain coalescer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226242.8A CN106731436A (en) | 2016-12-27 | 2016-12-27 | A kind of streamline ductwork formula ultra-fine grain coalescer |
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| CN106731436A true CN106731436A (en) | 2017-05-31 |
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| CN201611226242.8A Withdrawn CN106731436A (en) | 2016-12-27 | 2016-12-27 | A kind of streamline ductwork formula ultra-fine grain coalescer |
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Cited By (7)
| 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 |
| CN111871141A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Fan-shaped pipeline type ultrafine particle condenser |
| CN111871135A (en) * | 2020-08-07 | 2020-11-03 | 盐城工学院 | Oval horizontal bar pipeline type ultrafine particle condenser |
| CN111871137A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Diamond pipeline type ultrafine particle condenser |
| CN111871136A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Crescent horizontal bar pipeline type ultrafine particle condenser |
| CN112843973A (en) * | 2021-03-03 | 2021-05-28 | 武汉利康能源有限公司 | Fine dust coalescence device |
| CN113649169A (en) * | 2021-08-24 | 2021-11-16 | 航天环境工程有限公司 | Novel mixing electrostatic dust collector device and application |
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| 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 |
| CN207024989U (en) * | 2016-12-27 | 2018-02-23 | 盐城工学院 | A kind of streamline ductwork formula ultra-fine grain coalescer |
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2016
- 2016-12-27 CN CN201611226242.8A patent/CN106731436A/en not_active Withdrawn
Patent Citations (5)
| 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 |
| CN207024989U (en) * | 2016-12-27 | 2018-02-23 | 盐城工学院 | A kind of streamline ductwork formula ultra-fine grain coalescer |
Cited By (8)
| 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 |
| CN111871136A (en) * | 2020-08-09 | 2020-11-03 | 盐城工学院 | Crescent horizontal bar pipeline type ultrafine particle condenser |
| CN112843973A (en) * | 2021-03-03 | 2021-05-28 | 武汉利康能源有限公司 | Fine dust coalescence device |
| CN112843973B (en) * | 2021-03-03 | 2024-06-11 | 武汉利康能源有限公司 | Dust particle coalescence device |
| CN113649169A (en) * | 2021-08-24 | 2021-11-16 | 航天环境工程有限公司 | Novel mixing electrostatic dust collector device and application |
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