CN206810494U - One kind crosses formula waveform speed change pipeline coalescer - Google Patents

One kind crosses formula waveform speed change pipeline coalescer Download PDF

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Publication number
CN206810494U
CN206810494U CN201621445457.4U CN201621445457U CN206810494U CN 206810494 U CN206810494 U CN 206810494U CN 201621445457 U CN201621445457 U CN 201621445457U CN 206810494 U CN206810494 U CN 206810494U
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CN
China
Prior art keywords
coalescence
coalescer
area
waveform
dividing plate
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Expired - Fee Related
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CN201621445457.4U
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Chinese (zh)
Inventor
刘本志
任生鼎
金建祥
陈天明
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Yangcheng Institute of Technology
Yancheng Institute of Technology
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Yangcheng Institute of Technology
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Priority to CN201621445457.4U priority Critical patent/CN206810494U/en
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Abstract

One kind crosses formula waveform speed change pipeline 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, inside set negative plate, positive plate and the insulation board for separating, the dust granules in flue gas enter coalescence area after charged;Waveform dividing plate is provided with coalescence area, dust granules carry out the formula reinforcing coalescence that crosses in the passage between waveform dividing plate;Flue gas after coalescence is handled into main body deduster.The utility model is with strong points, adaptation is wide, constitution optimization, good reliability.

Description

One kind crosses formula waveform speed change pipeline coalescer
Technical field
The utility model belongs to flue gas ash removal process field, is related to one kind and crosses formula waveform speed change pipeline 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 the main reason for causing haze weather.Therefore, such as What control PM2.5Produce, and reduce its presence, turn into urgent problem to be solved.
Chinese patent CN101664623A discloses the ultrafine particle deduster for being related to and being administered for industrial fumes.Specifically By improving the electric-bag complex dust collector of existing secondary filtration mode, in the outlet of filter bag dedusting mechanism and the import of air-introduced machine Between be provided with turbulent eddy mechanism, the turbulent eddy mechanism includes turbulent eddy room, flue dust inlet tube and flue dust outlet.Turbulent flow Vortex chamber is that cross section is the bucket-shaped of isosceles trapezoid, and its bottom is connected to grey small room.By second level processing 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 with turbulent eddy chamber interior walls and collision promotes minuteness particle to precipitate, and 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 production 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 production whirlpool Piece, the frame produced by votex sheet are provided with deashing device.But votex sheet excessively influences flue gas excessively stream speed, adds knockouts Pressure drop.
Thus, for the problems such as coalescence is inefficient, complex process equipment, it is necessary on the basis of existing technology, The ultra-fine grain coalescer of coalescence is strengthened in research and development.On the basis of traditional deduster, coalescence processing unit is set up, makes 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.
Utility model content
Purpose of utility model:The purpose of this utility model is to solve the deficiencies in the prior art, proposes a kind of specific aim By force, wide, constitution optimization, the ultra-fine grain coalescer for strengthening coalescence of good reliability are adapted to.
Technical scheme:In order to realize the purpose of this utility model, the utility model adopts the following technical scheme that.
One kind crosses formula waveform speed change pipeline coalescer, and whole coalescer is in duct type, is adapted to mount to main body deduster In admission line before;Coalescer by charging area and coalescence district's groups into;There is one group of positive and negative alternate parallel channels charging area, Inside set negative plate, positive plate and the insulation board for separating, the dust granules in flue gas enter coalescence area after charged;Coalescence Area is provided with waveform dividing plate, and dust granules carry out the formula reinforcing coalescence that crosses in the passage between waveform dividing plate;Through coalescence Flue gas afterwards is handled into main body deduster.
Further, the waveform dividing plate set in coalescence area is horizontally disposed;Two pieces of adjacent waveform dividing plate waveforms become Change corresponding setting, form the passage of flow section change;Communicated between two pieces of adjacent waveform dividing plates, there is the section that crosses, The section that crosses is arranged at intervals;Waveform divider height is 10 ~ 15cm;Spacing between two pieces of adjacent waveform dividing plates takes 30 ~ 40cm。
Further, it is connected in the porch in coalescence area, vertically arranged one group of nozzle, nozzle by pipeline with air pump, can The adsorbents such as activated carbon are carried by air-flow and spray into coalescence area through nozzle.
Further, in the porch in coalescence area, vertically arranged one group of nozzle, by filling coalescence accelerator and water with liquid pump Divide mixing, mixed coalescence accelerator solution passes through guiding tube and access nozzle, spray into coalescence area, form mist cloud after atomization.
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, dust by when, by the positive or negative of its passage, obtain 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 are easy to deduster to gather dust, so Just the discharge of fine particle is reduced.
" turbulent flow coalescence " refers to the change for by special construction, causing flue gas stream, forms the state close to turbulent flow.It is solidifying And major influence factors be granular size, the cohesion performance of particle, velocity gradient and collision probability.In pending flue dust, no Lack big particle, big particle can be used as core, big with ultrafine particle collision knot.In terms of cohesion performance: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 particle of positively charged and electronegative particle have good coalescence performance under " electrostatic force " effect.Turbulent flow considerably increases The collision probability of particle in flue gas.Flow section is constituted due to the special tectonic of coalescer, between waveform dividing plate constantly to become The passage of change so that the flow velocity for the air-flow that passes by constantly changes.And particle therein can not be complete due to different from smoke density Change entirely with the change in flow of air-flow, especially larger particle has inertia, and the reaction for velocity variations is than ultra-fine Grain will postpone.Therefore during excessively stream, at branch's air-flow velocity change, exist in undulating path between bulky grain and ultra-fine grain Obvious velocity gradient.This velocity gradient energy increase products collision probability, significantly increases coalescence effect.Branch in coalescer Turn into the main generation area of turbulent flow coalescence at air-flow velocity change.The section that crosses is communicated between two pieces of adjacent waveform dividing plates, So that the size particles with friction speed are not limited in original passage, and crossed with lower channel, further increasing Grain collision probability, turbulent flow coalescence caused by further embodying velocity gradient.On the basis of electrostatic force and chemical coalescence, enter one Step passes through turbulent flow coalescence, enhances the overall formula coalescence effect that crosses.
Chemical coalescence principle:The coalescence accelerator of penetrating is under atomizer effect after crushing formed with certain angle of flare Degree and surface have the mist cloud of higher adhesion activity, and mist cloud is adsorbed in fly ash granule surface, produces liquid bridge 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 utility model uses, is to spray into powdered active carbon before particle coalescence, Mercury in flue gas is removed by the suction-operated of acticarbon.It is most effective remove that acticarbon is sprayed into flue gas One of method of mercury.Adsorbent be the modified activation of flyash with certain phosphorus content after formed cellular, specific surface area Abundant particulate matter, while have physics and chemisorbed function, its average grain diameter is at 20 μm or so, specific surface area>55m2/ g, Unburned carbon in flue dust is 6% ~ 7% or so.
Beneficial effect:Device provided by the utility model is compared with advantages below with existing apparatus.
(1)By special tectonic provided by the utility model, a variety of coalescence synergies, coalescence efficiency is improved, 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 utility model mainly by carrying out coalescence to superfine particulate matter before main body dust arrester, enables Removed in the presence of main body deduster, device provided by the utility model can improve main body deduster to superfine particulate matter Removal efficiency, reduce the discharge of ultra-fine flue dust.Can be in the equal working condition of main body deduster and the bar of collection mode Under part, PM in flue dust2.5Clearance improves 30% ~ 50%.
(3)The each several part of coalescer provided by the utility model, subregion is reasonable, the compatible matching of function.
(4)Coalescer provided by the utility model is main body deduster(Electric cleaner or sack cleaner)Volume reduction wound Condition is made.
(5)Coalescer provided by the utility model substantially reduces PM2.5And the discharge of the toxic heavy metal such as mercury.
(6)Coalescer provided by the utility model is vdiverse in function, flexible adjustment, sprays into the adsorbents such as activated carbon and strengthens removing The toxic heavy metals such as mercury, arsenic, coalescence effect can be strengthened by spraying into chemical polymeric sorbent;With the system of multi-pollution control Compare, realize it is multi-functional under the premise of, reduce investment, simplify operation, drag losses is small, pressure reduce, reduce energy Consumption, operating cost are low.
(7)It is easy for installation, adapt to it is wide, suitable for pre-processing before various main body dedusters, also improve electric cleaner or Adaptability of the sack cleaner to various different industrial fumes.
Brief description of the drawings
Fig. 1 is that one kind provided by the utility model crosses formula waveform speed change pipeline coalescer organigram.
In Fig. 1:1:Charging area, 2:Coalescence area, 3:Negative plate, 4:Insulation board, 5:Positive plate, 6:Waveform dividing plate, 7: Guiding tube, 8:Nozzle, A:At branch's air-flow velocity change, B, C, D:At flow channels different section, E:Branch's air-flow is handed over At remittance.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is furtherd elucidate.
Embodiment 1
Certain industrial fumes waste gas, treating capacity 80000m3/ h uses coalescer provided by the utility model.Whole coalescer In duct type, in main body deduster-electric cleaner, 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 enter coalescence area after charged;Coalescence area is provided with waveform dividing plate, dust granules waveform every The formula reinforcing coalescence that crosses is carried out in passage between plate;Flue gas after coalescence is handled into main body deduster.
The waveform dividing plate set in coalescence area is horizontally disposed;Adjacent two pieces of waveform dividing plate waveforms change is corresponding to be set Put, form the passage of flow section change;Communicated between two pieces of adjacent waveform dividing plates, there is the section that crosses, cross it is intersegmental every Set;Waveform divider height is 10cm;Spacing between two pieces of adjacent waveform dividing plates takes 30cm.In Fig. 1, branch's gas Flow through flow velocity VD>VC>VB, A is that E is air-flow intersection of branch, is also all that velocity gradient causes at branch's air-flow velocity change The region that mainly occurs of turbulent flow coalescence.
In the porch in coalescence area, one group of nozzle is set, by coalescence accelerator and water being sufficiently mixed with liquid pump, after mixing Coalescence accelerator solution after atomization, pass through guiding tube and access nozzle, spray into coalescence area, form mist cloud.Coalescence accelerator accounts for The mass percent of water is 1.5%;Coalescence accelerator solution flow accounts for flue gas flow percent by volume as 0.1%.At electric precipitation Flue gas after reason, the flue gas for reaching discharge standard after purification is discharged from aiutage by air-introduced machine.
Using coalescer provided by the utility model, reinforcing coalescence is carried out, is followed by main body deduster, the whole total dedusting of technique Efficiency more than 99.98%, dust contained flue gas concentration of emission are less than 30mg/Nm3, discharge PM in flue gas2.5Clearance improves 50%.

Claims (4)

  1. The formula waveform speed change pipeline coalescer 1. one kind crosses, it is characterised in that:Whole coalescer is in duct type, is adapted to mount to master In admission line before body deduster;Coalescer by charging area and coalescence district's groups into;There is one group of positive and negative phase described charging area Between parallel channels, inside set negative plate, positive plate and the insulation board for separating, the dust granules in flue gas are through charged laggard Enter coalescence area;Coalescence area is provided with waveform dividing plate, and the dust granules formula that carries out crossing in the passage between waveform dividing plate is strong Change coalescence;Flue gas after coalescence is handled into main body deduster.
  2. 2. coalescer as claimed in claim 1, it is characterised in that:The waveform dividing plate set in coalescence area is horizontally disposed;Phase Two pieces of adjacent waveform dividing plate waveforms change corresponding setting, form the passage of flow section change;Two blocks of adjacent waves Communicated between shape dividing plate, there is the section that crosses, the section that crosses is arranged at intervals;Waveform divider height is 10 ~ 15cm;Two blocks of adjacent waves Spacing between shape dividing plate takes 30 ~ 40cm.
  3. 3. coalescer as claimed in claim 1, it is characterised in that:In the porch in coalescence area, vertically arranged one group of nozzle, spray Mouth is connected by pipeline with air pump, acticarbon can be carried by air-flow and be sprayed into coalescence area through nozzle.
  4. 4. coalescer as claimed in claim 1, it is characterised in that:In the porch in coalescence area, vertically arranged one group of nozzle, by Coalescence accelerator and water are sufficiently mixed with liquid pump, mixed coalescence accelerator solution is accessed after atomization by guiding tube Nozzle, coalescence area is sprayed into, form mist cloud.
CN201621445457.4U 2016-12-27 2016-12-27 One kind crosses formula waveform speed change pipeline coalescer Expired - Fee Related CN206810494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621445457.4U CN206810494U (en) 2016-12-27 2016-12-27 One kind crosses formula waveform speed change pipeline coalescer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621445457.4U CN206810494U (en) 2016-12-27 2016-12-27 One kind crosses formula waveform speed change pipeline coalescer

Publications (1)

Publication Number Publication Date
CN206810494U true CN206810494U (en) 2017-12-29

Family

ID=60750970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621445457.4U Expired - Fee Related CN206810494U (en) 2016-12-27 2016-12-27 One kind crosses formula waveform speed change pipeline coalescer

Country Status (1)

Country Link
CN (1) CN206810494U (en)

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Granted publication date: 20171229

Termination date: 20191227