CN207024989U - A kind of streamline ductwork formula ultra-fine grain coalescer - Google Patents

A kind of streamline ductwork formula ultra-fine grain coalescer Download PDF

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Publication number
CN207024989U
CN207024989U CN201621444430.3U CN201621444430U CN207024989U CN 207024989 U CN207024989 U CN 207024989U CN 201621444430 U CN201621444430 U CN 201621444430U CN 207024989 U CN207024989 U CN 207024989U
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China
Prior art keywords
coalescence
area
horizontal stripe
coalescer
horizontal
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Expired - Fee Related
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CN201621444430.3U
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Chinese (zh)
Inventor
金建祥
任生鼎
王辰
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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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, 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 coalescence area, horizontal stripe is horizontally placed in coalescence area, the streamlined guided missile head of the section configuration of horizontal stripe;Flue gas after coalescence is handled into main body deduster.The utility model is with strong points, adaptation is wide, simple structure, good reliability.

Description

A kind of streamline ductwork formula ultra-fine grain coalescer
Technical field
The utility model belongs to flue gas ash removal process field, 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 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, the ultra-fine grain coalescer for strengthening coalescence of wide, simple structure, good reliability is adapted to.
Technical scheme:In order to realize the purpose of this utility model, the utility model adopts the following technical scheme that.
A kind of streamline ductwork formula ultra-fine grain coalescer, whole coalescer are in duct type, are 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, and the section configuration of horizontal stripe is fairshaped guided missile Head;Flue gas after coalescence is handled into main body deduster.
Further, 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 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, 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 sprayed into coalescence area by guiding tube 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 and collision probability of particle.In pending flue dust, big grain is had no lack of Son, 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 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 guide air-flow.Fairshaped horizontal stripe make it 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 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 angular special tectonic provided by the utility model, a variety of coalescence synergies, coalescence effect is improved Rate, 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 a kind of streamline ductwork formula ultra-fine grain coalescer organigram provided by the utility model.
Fig. 2 is ultra-fine grain coalescence principle schematic in the utility model.
In Fig. 1,2:1: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.
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 streamline ductwork formula ultra-fine grain coalescer.It is whole solidifying And device is in duct type, in main body deduster-electric cleaner, admission line before;Coalescer 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 for separating Insulation board, the dust in flue gas enters coalescence area after charged;3 groups of horizontal stripes, the section configuration of horizontal stripe are provided with coalescence area For fairshaped guided missile head;Flue gas after coalescence is handled into main body deduster.
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, horizontal 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, vertically arranged one group of nozzle, by being sufficiently mixed coalescence accelerator and water with liquid pump, mix Coalescence accelerator solution after conjunction accesses nozzle after atomization, by guiding tube, sprays into coalescence area, forms mist cloud.Coalescence promotes The mass percent that agent accounts for water is 1.5%;Coalescence accelerator solution flow accounts for flue gas flow percent by volume as 0.1%.Removed through electricity Flue gas after dirt processing, the flue gas for reaching discharge standard after purification is discharged from aiutage by air-introduced machine.
Using ultra-fine grain coalescer provided by the utility model, reinforcing coalescence is carried out, is followed by main body deduster, whole work The total efficiency of dust collection more than 99.98% of skill, dust contained flue gas concentration of emission are less than 30mg/Nm3, discharge PM in flue gas2.5Clearance improves 50%.

Claims (4)

  1. A kind of 1. 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, and horizontal stripe breaks Face is shaped as fairshaped guided missile head;Flue gas after coalescence is handled into main body deduster.
  2. 2. coalescer as claimed in claim 1, it is characterised in that:The every group of horizontal stripe set in coalescence area is arranged above and below, horizontal stripe Section configuration nose of missile length be 10 ~ 15cm, a length of 20 ~ 30 cm of horizontal component;The height of horizontal stripe is 10 ~ 20cm;It is adjacent Spacing between two horizontal stripes takes 1.0 ~ 2.0 times of horizontal stripe height;Spacing between two adjacent groups horizontal stripe takes horizontal stripe section length 1.0 ~ 2.0 times, shift to install between two adjacent groups horizontal stripe.
  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, and acticarbon is sprayed into coalescence area through nozzle by guiding tube.
  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.
CN201621444430.3U 2016-12-27 2016-12-27 A kind of streamline ductwork formula ultra-fine grain coalescer Expired - Fee Related CN207024989U (en)

Priority Applications (1)

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CN201621444430.3U CN207024989U (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
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731436A (en) * 2016-12-27 2017-05-31 盐城工学院 A kind of streamline ductwork formula ultra-fine grain coalescer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731436A (en) * 2016-12-27 2017-05-31 盐城工学院 A kind of streamline ductwork formula ultra-fine grain coalescer

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Granted publication date: 20180223

Termination date: 20181227