CN206382119U - A kind of device of pulse corona charge removing sintering flue gas fine particulate matter - Google Patents
A kind of device of pulse corona charge removing sintering flue gas fine particulate matter Download PDFInfo
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- CN206382119U CN206382119U CN201621477543.3U CN201621477543U CN206382119U CN 206382119 U CN206382119 U CN 206382119U CN 201621477543 U CN201621477543 U CN 201621477543U CN 206382119 U CN206382119 U CN 206382119U
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Abstract
The utility model discloses a kind of device of pulse corona charge removing sintering flue gas fine particulate matter, belong to sintering process pollutant removing technical field.The utility model includes pulse charge unit, agglomeration unit and capture unit, pulse charge unit, agglomeration unit and capture unit are set in turn in gas pipeline along the flow direction of flue gas, and the impulse electric corona electrode of pulse charge unit makes particulate matter carry electric charge by pulsed discharge；Agglomeration unit includes positive electricity droplet spraying mechanism and negative electricity droplet spraying mechanism, positive electricity droplet spraying mechanism or negative electricity droplet spraying mechanism are used to spray into the agglomerator droplet with positive charge or negative electrical charge into flue gas, and agglomerator droplet is reunited with the particulate matter with electric charge；Capture unit is used to trap the particulate matter after reuniting.Make fine particle charged by impulse electric corona, agglomeration unit sprays into the agglomerating effect that electrically charged agglomerator enhances particulate matter, improves the reunion removal efficiency of fine particle.
Description
Technical field
The utility model belongs to sintering process pollutant removing technical field, in particular, is related to a kind of impulse electric corona
The device of charged removing sintering flue gas fine particulate matter.
Background technology
Fine particle pollutant has been one severe environmental problem of China now, the serious life that have impact on people
Living and health.The Dominant particle thing of current iron and steel metallurgical industry is essentially from agglomeration for iron mine process, and agglomeration for iron mine process is modern
Essential link in Steel Production Flow Chart, while being the maximum PM of steel and iron industry again10And PM2.5Emission source, sintering flue gas electricity
The particulate matter discharged every year after dedusting accounts for 40% of its total release or so more than 1,000,000 t.Current sintering plant is mainly using quiet
The particulate matter that electric cleaner comes in purifying sintering flue gas, electrostatic precipitator is preferable to the coarseparticulate removal effect in flue gas, but
It is less than 10 μm of fine particle (PM for particle diameter10And PM2.5), because its ratio resistance is high, charge capacity is poor, efficiency of dust collection shows
Write reduction.Flue gas is sintered after electrostatic precipitation, more than 90% particulate matter is PM in flue gas10, more than 80% particulate matter is
PM2.5, traditional dedusting method be difficult to effectively control sintering flue gas in fine particle discharge.Urgent need develops a kind of sintering
The abjection device of flue gas fine particulate matter, so as to be effectively treated to the fine particle in sintering flue gas.
Through retrieving, for example：Chinese Patent Application No.：201310381190.1, authorized announcement date 2015 year 2 month 4 days, invention
Create entitled electric precipitation water fog charge coalescence trapping PM2.5The method of minuteness particle, this application case discloses a kind of electric precipitation water
The charged coalescence trapping PM of mist2.5The method of minuteness particle, it is characterised in that electrostatic precipitation part and liquid atomised part, through atomization
Drop corona charging in the electric field, make droplets, charged droplet and minuteness particle making contact, coalescence reunion microfine
Son, and transfer charge on minuteness particle, improve the charging performance of particle, the invention additionally provides a kind of electric precipitation water smoke
Charged coalescence traps PM2.5The device of minuteness particle, including electrostatic precipitation part and two-fluid jet atomization part, described is double
Fluid injection atomised part includes steam line, water supply line and nozzle.It is disadvantageous in that PM2.5It is charged inefficient,
Removal efficiency is poor, and apparatus structure complexity is huge.
In addition, such as：Chinese Patent Application No.：201620055887.9, authorized announcement date is on June 29th, 2016, invention
A kind of entitled flue gas dust collecting system is created, this application case discloses a kind of flue gas dust collecting system, the dust pelletizing system includes gravity
Expansion chamber, inertia dust-removing device, cyclone dust collector and Wet type electric dust-removing device；Wherein inertia dust-removing device is arranged at gravity and sunk
Drop is indoor and is located at the smoke outlet of gravity settling chamber, the smoke outlet of gravity settling chamber and the flue gas of cyclone dust collector
Arrival end is connected；Wet type electric dust-removing device is arranged at the smoke outlet of cyclone dust collector.This application case is relative to existing
There is Wet type electric dust-removing device to improve efficiency of dust collection to a certain extent, but it is disadvantageous in that and uses cleaner species
More, crushing is big, high energy consumption.
Utility model content
1. the utility model technical problem to be solved
The utility model is limited to the treatment effect of the fine particle in flue gas for existing dedusting method, it is difficult to have
There is provided a kind of pulse corona charge removing sintering flue gas fine the problem of the discharge of fine particle in effect control sintering flue gas
The device of grain thing, makes fine particle charged by impulse electric corona, and agglomeration unit sprays into electrically charged agglomerator can be with reinforcing particle
The agglomerating effect of thing, improves the reunion removal efficiency of fine particle, can control to sinter the discharge of flue gas fine particulate matter.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the utility model is provided is：
A kind of device of pulse corona charge removing sintering flue gas fine particulate matter of the present utility model, including pulse are charged
Unit, the pulse charge unit is provided with impulse electric corona electrode, and impulse electric corona electrode makes particulate matter with electricity by pulsed discharge
Lotus；Agglomeration unit, the agglomeration unit includes positive electricity droplet spraying mechanism and negative electricity droplet spraying mechanism, positive electricity droplet spraying mechanism
Or negative electricity droplet spraying mechanism is used to spray into the agglomerator droplet with positive charge or negative electrical charge, agglomerator mist into flue gas
Drop is reunited with the particulate matter with electric charge；Capture unit, the capture unit is used to trap the particulate matter after reuniting；Described pulse
Charge unit, agglomeration unit and capture unit are set in turn in gas pipeline along the flow direction of flue gas.
Preferably, described positive electricity droplet spraying mechanism includes positive corona atomizing nozzle, positive corona electrode and positive corona electricity
Source, the shower nozzle one of described positive corona atomizing nozzle is arranged in flue, and positive corona electrode is arranged at positive corona atomization spray
In pipe, positive corona electrode is connected with positive corona power supply.
Preferably, described negative electricity droplet spraying mechanism includes negative corona atomizing nozzle, negative corona electrode and negative corona electricity
Source, the shower nozzle two of described negative corona atomizing nozzle is arranged in flue, and negative corona electrode is arranged at negative corona atomization spray
In pipe, negative corona electrode is connected with negative corona power supply.
Preferably, pulse power frequency used in described impulse electric corona electrode is 150~250Hz, voltage 50~
110kV。
Preferably, described gas pipeline is removing pipeline, and the diameter of the removing pipeline is more than the diameter of flue, institute
The inlet end for the removing pipeline stated is connected by expanding pipe with flue.
Preferably, in addition to pretreatment unit, pretreatment unit is used into flue gas spray into agglomerator or water or salting liquid
Droplet.
Preferably, the agglomerator or the mist droplet particle size of water or salting liquid that pretreatment unit is sprayed into are 0.2~3 μm.
Preferably, described pretreatment unit is arranged at the pipeline axle center of expansion pipe.
Preferably, pretreatment unit includes pretreatment jet pipe and diversion component, and wherein diversion component is arranged at pretreatment spray
The weather side of pipe, pretreatment jet pipe is used for the droplet that agglomerator or water or salting liquid are sprayed into pipeline.
3. beneficial effect
The technical scheme provided using the utility model, compared with prior art, is had the advantages that：
(1) a kind of device of pulse corona charge removing sintering flue gas fine particulate matter of the present utility model, pulse is charged
Unit, agglomeration unit and capture unit are set in turn in gas pipeline along the flow direction of flue gas, are made by impulse electric corona
Fine particle is charged, and agglomeration unit sprays into the agglomerating effect that electrically charged agglomerator enhances particulate matter, improves subparticle
The discharge of the reunion removal efficiency of thing, effectively control sintering flue gas fine particulate matter；
(2) a kind of device of pulse corona charge removing sintering flue gas fine particulate matter of the present utility model, pretreatment is single
When the pretreatment jet pipe of member sprays into the droplet of water into flue gas, pass through the medium grain size particle in droplet particle and fine particle
With reference to particulate matter and water combine to form the mixture of larger particles and water or forms clad, increase in surface particles
Grain diameter in particulate matter so that particulate matter avoids medium grain size, reduces the interval fine particle of medium grain size
Ratio, and then medium grain size charging particle effect is enhanced, so that the reunion for promoting fine particle is grown up, improve fine
The removal efficiency of particulate matter.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model；
Fig. 2 is the structural representation of embodiment 2 of the present utility model；
Fig. 3 is the structural representation of embodiment 3 of the present utility model；
Fig. 4 is the structural representation that the diversion component of embodiment 3 of the present utility model is arranged at expansion pipe；
Fig. 5 is the structural representation of embodiment 4 of the present utility model.
Label declaration in schematic diagram：
100th, pulse charge unit；110th, impulse electric corona electrode；
200th, agglomeration unit；210th, positive electricity droplet spraying mechanism；211st, positive corona atomizing nozzle；212nd, positive corona electrode；
213rd, positive corona power supply；214th, shower nozzle one；220th, negative electricity droplet spraying mechanism；221st, negative corona atomizing nozzle；222nd, negative corona
Electrode；223rd, negative corona power supply；224th, shower nozzle two；230th, corona power supply source；
300th, capture unit；310th, collector electrode；312nd, positive electrode is trapped；313rd, negative electrode is trapped；320th, collector；
400th, pretreatment unit；410th, jet pipe is pre-processed；420th, diversion component；421st, the first baffle；422nd, second lead
Flow block；
500th, pipeline is removed；510th, expansion pipe；520th, collapsible tube；530th, baffle plate；
600th, flue.
Embodiment
Hereafter the detailed description to exemplary embodiment of the present utility model with reference to accompanying drawing, and the one of accompanying drawing formation description
Part, shows the enforceable exemplary embodiment of the utility model as example in the figure.Although these exemplary realities
Apply example to be described in sufficient detail to enable those skilled in the art to implement the utility model, it is to be understood that it can be realized
His embodiment and can various changes can be made to the utility model in the case where not departing from spirit and scope of the present utility model.Hereafter
More detailed description to embodiment of the present utility model is not limited to required scope of the present utility model, and only
In order to be illustrated and do not limit the characteristics of to the utility model and feature description, it is of the present utility model to propose to perform
Best mode, and be sufficient so that those skilled in the art and can implement the utility model.Therefore, scope of the present utility model only by
Appended claims are limited.
Hereafter detailed description of the present utility model and example embodiment can be more fully understood with reference to accompanying drawing, wherein this reality
Identified with new element and feature by reference.
Embodiment 1
As shown in figure 1, fine particulates device in a kind of corona discharge pulse removing agglomeration for iron mine flue gas of the present embodiment,
Including pulse charge unit 100, agglomeration unit 200 and capture unit 300；Pulse charge unit 100, agglomeration unit 200 and catch
Collection unit 300 is set in turn in gas pipeline along the flow direction of flue gas, wherein described gas pipeline is removing pipeline
500, the diameter of the removing pipeline 500 is more than the diameter of flue 600, and the inlet end of described removing pipeline 500 passes through expansion
Open pipe 510 with flue 600 to be connected, the outlet side of removing pipeline 500 is connected by collapsible tube 520 with flue 600, i.e.,
Removing pipeline 500 is installed in series on flue 600, and flue gas enters removing pipeline 500 by expansion pipe 510, after reunion is grown up
Flue 600 is entered by collapsible tube 520, the diameter of flue 600 is more than due to removing the diameter of pipeline 500, so that
The flue gas flow rate in removing pipeline 500 is reduced, the time that increase emission reduction is reunited, emission reduction effect is improved.
The pulse charge unit 100 of the present embodiment is provided with impulse electric corona electrode 110, and impulse electric corona electrode 110 passes through arteries and veins
Impulse electricity makes particulate matter carry the charges of different polarity；Described impulse electric corona electrode 110 is provided with three rows, strengthens charged efficiency, and arteries and veins
Pulse power frequency used in corona electrode 110 is rushed for 150~250Hz, the preferred 200Hz of the present embodiment, voltage in 50~110kV,
The preferred 80kV of the present embodiment；Impulse electric corona electrode 110 makes particulate matter carry the charges of different polarity by pulsed discharge.
Its reason is due to, in high-voltage pulse corona ring border, it is understood that there may be two kinds of charged mechanism：Diffusional charging and electric field
Charged, under the collective effect of two kinds of charged mechanism, particulate matter can become positively charged lotus or negative electrical charge, and applicant is surprised
It was found that when particle size is different, diffusional charging and the electric-field charge leading role that to show place different, i.e., when particulate matter
Diffusional charging plays a leading role when footpath is smaller, and makes particulate matter positively charged, and when particle size is larger, electric-field charge rises leading
Effect, and make particulate matter negatively charged, the particulate matter of positively charged in the presence of electronics Coulomb force, is inhaled with electronegative particulate matter
Draw, flock together, so that the reunion for enhancing particle is grown up.
It is further to enter agglomeration unit 200 after particulate matter with the charges of different polarity itself attraction, forming core；Agglomeration unit
200 are arranged on the downwind side of the flue gas flow direction of pulse charge unit 100, and agglomeration unit 200 includes positive electricity droplet spraying mechanism 210
With negative electricity droplet spraying mechanism 220, positive electricity droplet spraying mechanism 210 or negative electricity droplet spraying mechanism 220 are used for into flue gas
The agglomerator droplet with positive charge or negative electrical charge is sprayed into, agglomerator droplet is reunited with the particulate matter with the charges of different polarity.Institute
The positive electricity droplet spraying mechanism 210 stated is arranged at the weather side of negative electricity droplet spraying mechanism 220, i.e. flue gas and first passes through positive electricity droplet
Spraying mechanism 210 moves to negative electricity droplet spraying mechanism 220 again.
Wherein, what deserves to be explained is：Positive electricity droplet spraying mechanism 210 includes positive corona atomizing nozzle 211, positive corona electrode
212 and positive corona power supply 213, described positive corona electrode 212 is connected with positive corona power supply 213, and the positive corona electrode 212 is set
At the import of positive corona atomizing nozzle 211, positive corona electrode 212 causes the group in positive corona atomizing nozzle 211 by electric discharge
Poly- agent carries positive charge, and the port of export of positive corona atomizing nozzle 211 is provided with shower nozzle 1, and the shower nozzle 1 is arranged at removing
In pipeline 500, shower nozzle 1 is used for the droplet that positively charged is sprayed into removing pipeline 500, and the injection direction of shower nozzle 1
In opposite direction with flow of flue gas, fine particle and agglomerator shower nozzle head on the agglomerator droplet touch opportunity of ejection in flue gas
Increase.After being handled through pulse corona electrode 110, droplet of the fine particle with negative electricity in the presence of Coulomb force with positive electricity
Attract each other, agglomerator droplet flocks together with the fine particle with negative electricity, the then electric charge in particulate matter and reunion
Electric charge in agent is mutually neutralized, after particulate matter condenses together with agglomerator, under the cementation of agglomerator, and agglomerator will
Particulate matter is bonded together, and reunion is grown up, by charge attraction so as to which the combination for promoting fine particle and agglomerator is imitated
Rate, and improve the agglomerating effect of fine particle.
Negative electricity droplet spraying mechanism 220 includes negative corona atomizing nozzle 221, negative corona electrode 222 and negative corona power supply
223, the negative corona electrode 222 is connected with negative corona power supply 223, and negative corona electrode 222 is arranged at negative corona atomizing nozzle 221
At import, negative corona electrode 222 causes the agglomerator of negative corona atomizing nozzle 221 to carry negative electrical charge by electric discharge.Negative corona mist
The port of export for changing jet pipe 221 is provided with shower nozzle 2 224, and shower nozzle 2 224 is arranged in removing pipeline 500, shower nozzle 2 224 be used for
Electronegative droplet is sprayed into removing pipeline 500；And shower nozzle 2 224 injection direction and flow of flue gas it is in opposite direction.Similarly,
After being handled through pulse corona electrode 110, partial particulate thing carries positive charge, i.e. partial particulate with positive charge；Of course pass through
Fine particle after the processing of positive electricity droplet spraying mechanism 210, may performance after fine particle is combined with the droplet of positively charged
Positive electrical feature.Fine particle with positive charge carries the agglomerated particle of positive charge after either being combined with agglomerator, in storehouse
Attracted each other in the presence of logical sequence power with electronegative droplet, after particulate matter condenses together with agglomerator, in the viscous of agglomerator
Under knot effect, agglomerator continues particulate matter being bonded together, by charge attraction so as to promote fine particle and reunion
The joint efficiency of agent, and improve the agglomerating effect of fine particle.
Particle carries positive charge or negative electrical charge after being handled through pulse corona electrode 110, should carry positive charge or negative electricity
The particulate matter of lotus, sprays into positive electricity droplet spraying mechanism 210 and negative electricity droplet spraying mechanism 220 and carries positive charge or negative electrical charge
Agglomerator, particulate matter flocked together with being attracted each other with the agglomerator of diversity, and the particulate matter after aggregation is being reunited
Under the cementation of agent, constantly collided between particulate matter, bonding grow up, promote particulate matter reunite grows up, and formed compared with
Big particulate matter.
It is fine during fine particle in flue gas sequentially passes through pulse charge unit 100, agglomeration unit 200
Particulate matter is after pulse charge unit 100 is charged, and the particulate matter of different-grain diameter carries the charges of different polarity after charged, in the charges of different polarity
Driving under, particulate matter attract each other and formed reunion core, then positive electricity droplet spraying mechanism 210 to removing pipeline 500 spray
Enter the droplet of positively charged, in the presence of the agglomerator droplet of positively charged, particulate matter, which is further combined and reunited, starts length
Greatly；Then negative electricity droplet spraying mechanism 220 sprays into electronegative droplet to removing pipeline 500, and electronegative agglomerator droplet enters
One step is combined with the particle or aggregate of positively charged, and a step-length of going forward side by side is big, is that follow-up trapping provides safeguard.
Above-mentioned capture unit 300 is used to trap the particulate matter after reuniting；Described capture unit 300 includes collector electrode
310 and collector 320, the particulate matter after reunion passes through collector electrode 310, the particulate matter that colelctor electrode of being caught 310 is caught, trapping electricity
Pole 310 is provided with vibrating device, and vibrating device is shaken off or is expelled in collector 320 during vibration, and is received
Storage 320 is collected, and the bottom of collector 320 is provided with opening valve, and opening valve is used for exhaust particulate matter.When collector 320 is collected into one
The particulate matter that opening valve discharge is collected is opened when quantitative.Capture unit 300 is used to trap the particulate matter after reuniting, and will
The particle cluster of trapping is collected；Pulse charge unit 100, agglomeration unit 200 and capture unit 300 are along the flowing side of flue gas
To being set in turn in removing pipeline 500, i.e., by the weather side of flow of flue gas to downwind side, it is disposed with pulse charge unit
100th, agglomeration unit 200 and capture unit 300；The present apparatus easily makes fine particle charged and charged agglomerator agglomeration, plus
It is strong to PM2.5And PM10Electrostatic effect.The agglomerator of the present embodiment is the aqueous solution of sodium carboxymethylcellulose (CMC),
The mass concentration of solution is 0.02%.
Emission reduction effect using the fine particle of the removing means is as follows, wherein：PM10 emission reduction efficiencies (%) are：
44.1%, PM2.5 emission reduction efficiency (%)：28.3%.Improve the emission reduction effect of fine particle.Make fine by impulse electric corona
The grain thing lotus charges of different polarity, can strengthen charged agglomerator aggregation, improve the reunion removal effect of fine particle.
Embodiment 2
As shown in Fig. 2 the substance be the same as Example 1 of the present embodiment, difference is：Also include pretreatment unit
400, pretreatment unit 400 is used for the droplet that agglomerator or water or salting liquid are sprayed into flue gas, the present embodiment use for water,
And the agglomerator of the penetrating of pretreatment unit 400 or the mist droplet particle size of water are 0.2~3 μm.Pretreatment unit 400 therein includes pre-
Jet pipe 410 is handled, the pretreatment jet pipe 410 is used for the droplet that agglomerator or water or salting liquid are sprayed into flue gas, the present embodiment
Spray into be：The droplet of water, mist droplet particle size is 0.2~3 μm.
Emission reduction effect using the fine particle of the removing means is as follows, wherein：PM10 emission reduction efficiencies (%) are：
47.1%, PM2.5 emission reduction efficiency (%)：34.3%, improve the emission reduction effect of fine particle.Compared to embodiment 1, PM10 emission reductions
Efficiency (%) is：47.1%, PM2.5 emission reduction efficiencies (%) are brought up to by 44.1%：34.3% is brought up to by 28.3%.By anti-
Its mechanism is discussed again, and thinks that its mechanism is probably：
(1) PM10/2.5 emission reduction efficiency has been lifted, and its reason is probably pretreatment unit 400 to fine in flue gas
Particulate matter is pre-processed so that the fine particle in flue gas is grown up in advance, overall agglomerating effect is improved, so as to carry
The overall emission reduction effect of high fine particle.
(2) in high-voltage pulse corona ring border, two kinds of charged mechanism be may be simultaneously present：Diffusional charging and electric-field charge,
Applicant is had found by long-term research：Wherein diffusional charging mechanism can make fine particle positively charged, and electric-field charge mechanism can
Make fine particle negatively charged；Most critical is that diffusional charging and electric-field charge can show place when particle size is different
Different leading roles, i.e., when particle size is smaller, diffusional charging plays a leading role, and makes particulate matter positively charged, works as particle
Electric-field charge plays a leading role when thing particle diameter is larger, and makes particulate matter negatively charged；But, when particle size falls between
When (follow-up referred to as：Medium grain size particle), two kinds of mechanism of diffusional charging and electric-field charge can show Competition, and make
Grain thing is not charged, when the droplet of water is sprayed into flue gas by adding the pretreatment jet pipe 410 of pretreatment unit 400, it may be possible to
Improve and combined by droplet particle with the medium grain size particle in fine particle, droplet and the medium grain size particle of water are constituted
Larger particulate matter, is acted on it is important to note that being here formed as larger particulate matter not just particulate matter in water smoke drop
Under agglomerate into larger particulate matter, and be particulate matter with water combine to form larger particles and water mixture or
The grain diameter that grain thing surface is formed in clad, increase particulate matter so that particulate matter avoids medium grain size, reduces medium
The ratio of the fine particle of particle size interval, therefore after extra pulse charge unit 100, fine particle is substantially all can positively charged
Or negative electricity, and then medium grain size charging particle effect is enhanced, cooperateed with by pretreatment unit 400 and impulse electric corona electrode 110
Effect, improves the charged effect of particulate matter in flue gas, and provides sound assurance for the reunion of follow-up particulate matter, overcomes existing
Technical barrier in technology, with significant progressive.
Embodiment 3
As shown in Figure 3 and Figure 4, the substance be the same as Example 2 of the present embodiment, difference is：Described pretreatment
Unit 400 is arranged on the pipeline axle center of expansion pipe 510, and pretreatment unit 400 includes pretreatment jet pipe 410 and diversion component
420, wherein diversion component 420 is arranged at the weather side of pretreatment jet pipe 410, and diversion component 420 is arranged at expansion pipe 510
Tube wall marginal position, wherein diversion component 420 include the first baffle 421 and the second baffle 422, and the first baffle 421 is set
The weather side of the second baffle 422 is placed in, the first baffle 421 and the second baffle 422 are arranged at the margin location of expansion pipe 510
Put, and the front of pretreatment jet pipe 410 is not provided with baffle, so as to enhance the droplet of salting liquid and the bag of particulate matter
Wrap up in, combine, the connecting line of the second corresponding baffle 422 of the first baffle 421 parallel to expansion pipe 510 tube wall, the
One baffle 421 and the second baffle 422 collectively form the diversion component 420 of " umbrella " shape, and the diversion component 420 for being somebody's turn to do " umbrella " shape is set
It is placed in the weather side of pretreatment jet pipe 410.Pretreatment jet pipe 410 is connected with the storage bin of salting liquid, and pretreatment jet pipe 410 is used for
The droplet of salting liquid is sprayed into pipeline, pretreatment jet pipe 410 is located on the pipeline axle center of expansion pipe 510, the droplet of salting liquid
Particle diameter is 0.2~3 μm, and salting liquid is NaCl solution.
PM10 emission reduction efficiencies (%) are：45.2%, PM2.5 emission reduction efficiency (%)：36.8%.This implementation is by setting water conservancy diversion
Part 420, the first baffle 421 and the second baffle 422 collectively form the arrangement of " umbrella " shape, so as to enhance disturbing for flue gas
Stream, promotes flue gas and particulate matter to be flowed to middle part, and makes particulate matter and spray into salting liquid collision in pipeline, combines, and then sends out
Raw to reunite or wrap up, the reunion of the droplet and particulate matter of salting liquid or parcel increase the particle diameter of particulate matter, so as to reduce
The particulate matter ratio of medium grain size.So as to improve removal effect.
Embodiment 4
As shown in figure 5, the substance be the same as Example 1 of the present embodiment, difference is：The positive pole of corona power supply source 230
It is connected with positive corona electrode 212, the negative pole of corona power supply source 230 is connected with negative corona electrode 222, so as to ensure that positive corona electricity
It is essentially identical that pole 212 and negative corona electrode 222 are provided the quantity of electric charge of positive and negative charge.
Collector electrode 310 includes trapping power supply 311, trapping positive electrode 312 and trapping negative electrode 313, and trapping positive electrode
312 be arranged at trapping negative electrode 313 weather side, i.e., flue gas first pass through trapping positive electrode 312 flowing to trapping negative electrode
313.Wherein the trapping positive pole of power supply 311 is connected with trapping positive electrode 312, the trapping negative pole of power supply 311 and the trapping phase of negative electrode 313
Even.Particulate matter with different electric charges is after positive electricity droplet spraying mechanism 210 and negative electricity droplet spraying mechanism 220, substantially
Reunite and grown up, and carried upper different electric charge.If particulate matter aggregate carries negative electrical charge, then trapping positive electrode
312 attract each other with particulate matter aggregate, and in the presence of Coulomb force, particulate matter aggregate is attracted to trapping positive electrode
On 312；Particulate matter aggregate carries positive charge, then trapping negative electrode 313 attracts each other with particulate matter aggregate, and in coulomb
In the presence of power, particulate matter aggregate be attracted to trapping negative electrode 313 on, vibrating device shaken off during vibration or
Person is expelled in collector 320, and is collected by collector 320.So as to improve gather dust effect of the collector electrode 310 to particulate matter
Really, fine particle removal effect is improved.
In addition, being provided with baffle plate 530 between pulse charge unit 100 and agglomeration unit 200, the agglomeration unit 200 is located at
Pipeline 500 is removed, it is arranged between pulse charge unit 100 and agglomeration unit 200, baffle plate 530 promotes removing pipeline 500
The disturbance of middle flue gas, and self aggregation procedure of fine particle is enhanced, the agglomerating effect of nucleation process is improved, so as to be
Positive electricity droplet spraying mechanism 210 and negative electricity droplet spraying mechanism 220 spray into the material for how having different electric charges so that fine particle
Reunited, improve agglomerating effect, so as to promote the removing of fine particle.In the present embodiment pre-process jet pipe 410 to
The droplet of agglomerator is sprayed into pipeline, agglomerator is the aqueous solution of sodium carboxymethylcellulose (CMC).
Emission reduction step of the present utility model, it is specific as follows：
Step one：Fine particle pulse is charged
The pretreatment unit 400 that flue gas is introduced into removing means is pre-processed, and the removing means is above-mentioned pulse
Fine particulates device in corona discharge removing agglomeration for iron mine flue gas, pretreatment unit 400 includes pretreatment jet pipe 410, and this is pre-
The droplet that jet pipe 410 is used to spray into agglomerator or water or salting liquid into flue gas is handled, mist droplet particle size is 0.2~3 μm；Fine
Grain thing combines to form larger particles with agglomerator or water or salting liquid, and agglomerator or water or salting liquid are on fine particle surface
The grain diameter formed in clad, increase particulate matter so that particulate matter avoids medium grain size, reduces medium grain size interval
Fine particle ratio；
Pretreated flue gas enters the removing pipeline 500 of removing means, in the impulse electric corona electricity of pulse charge unit 100
In the presence of pole 110, fine particle carries electric charge through pulsed discharge, and fine particle is according to grain graininess difference by with different
Property electric charge；
Step 2: the charged reunion of particulate matter is grown up
Fine particle after charged enters agglomeration unit 200, and flue gas first passes through positive electricity droplet spraying mechanism 210, positive electricity
Droplet spraying mechanism 210 sprays into the droplet of positively charged, the droplet of particulate matter and positively charged with negative electricity into removing pipeline 500
Attraction agglomerates into particle cluster；Then smoke movement is to negative electricity droplet spraying mechanism 220, negative electricity droplet spraying mechanism 220
Electronegative droplet is sprayed into removing pipeline 500, the droplet of electronegative droplet and positively charged attracts to agglomerate into particle
Aggregate；The particulate matter of positively charged, which is likely to be pulsed discharge, makes its positively charged, it is also possible to be particulate matter and agglomerator droplet
With reference to rear positively charged；
Step 3: trapping aggregate
Capture unit 300 is moved to compared with particle cluster, and the collector electrode 310 of capture unit 300 is by the particle after reunion
Thing is trapped, and vibrates collector electrode 310, and the particulate matter being captured during vibration is shaken off or is expelled in collector 320,
By the fine particle removing in flue gas.
The utility model is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can be
Various modifications and variations are carried out in the case of not departing from the scope of the present utility model being defined by the following claims.Detailed retouches
State should be to be considered only as with accompanying drawing it is illustrative and not restrictive, if there is any such modifications and variations, then
They are fallen within the range of the utility model described here.In addition, background technology is intended to illustrate grinding for this technology
It was found that shape and meaning, it is no intended to limit the utility model or the application and application field of the present utility model.
More specifically, although exemplary embodiment of the present utility model has been described herein, the utility model is simultaneously
These embodiments are not limited to, but are repaiied including the process that those skilled in the art can be appreciated that according to detailed description above
Change, omit, any and whole embodiments of (such as between each embodiment) combination, adaptive change and/or replacement.Right
It is required that in restriction can widely be explained according to the language used in claim, and be not limited in foregoing detailed description
In or the example that describes during this application is implemented, these examples are considered as nonexcludability.For example, in the utility model
In, term " preferably " not exclusively, here it means that " preferably, but be not restricted to that ".It is in office where method or
Any step enumerated in process claims can perform and be not limited to the order proposed in claim in any order.
Therefore, scope of the present utility model should be determined only by appended claims and its legal equivalents, rather than be given by above
The explanation and example that go out is determined.
Claims (9)
1. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter, it is characterised in that：Including
Pulse charge unit (100), the pulse charge unit (100) is provided with impulse electric corona electrode (110), impulse electric corona electrode
(110) particulate matter is made to carry electric charge by pulsed discharge；
Agglomeration unit (200), the agglomeration unit (200) includes positive electricity droplet spraying mechanism (210) and negative electricity droplet spraying mechanism
(220), positive electricity droplet spraying mechanism (210) or negative electricity droplet spraying mechanism (220), which are used to spray into flue gas, carries positive electricity
Lotus or the agglomerator droplet of negative electrical charge, agglomerator droplet are reunited with the particulate matter with electric charge；
Capture unit (300), the capture unit (300) is used to trap the particulate matter after reuniting；
Described pulse charge unit (100), the flow direction of agglomeration unit (200) and capture unit (300) along flue gas according to
It is secondary to be arranged in gas pipeline.
2. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 1, its feature
It is：Described positive electricity droplet spraying mechanism (210) includes positive corona atomizing nozzle (211), positive corona electrode (212) and positive electricity
Dizzy power supply (213), the shower nozzle one (214) of described positive corona atomizing nozzle (211) is arranged in flue, positive corona electrode
(212) it is arranged in positive corona atomizing nozzle (211), positive corona electrode (212) is connected with positive corona power supply (213).
3. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 1, its feature
It is：Described negative electricity droplet spraying mechanism (220) includes negative corona atomizing nozzle (221), negative corona electrode (222) and negative electricity
Dizzy power supply (223), the shower nozzle two (224) of described negative corona atomizing nozzle (221) is arranged in flue, negative corona electrode
(222) it is arranged in negative corona atomizing nozzle (221), negative corona electrode (222) is connected with negative corona power supply (223).
4. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 1, its feature
It is：Pulse power frequency used in described impulse electric corona electrode (110) is 150~250Hz, and voltage is in 50~110kV.
5. a kind of dress of pulse corona charge removing sintering flue gas fine particulate matter according to claim any one of 1-4
Put, it is characterised in that：Described gas pipeline is removing pipeline (500), and the diameter of the removing pipeline (500) is more than flue
(600) diameter, the inlet end of described removing pipeline (500) is connected by expanding pipe (510) with flue (600).
6. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 5, its feature
It is：Also include pretreatment unit (400), pretreatment unit (400) is used into flue gas spray into agglomerator or water or salting liquid
Droplet.
7. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 6, its feature
It is：The agglomerator or the mist droplet particle size of water or salting liquid that pretreatment unit (400) is sprayed into are 0.2~3 μm.
8. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 7, its feature
It is：Described pretreatment unit (400) is arranged at the pipeline axle center of expansion pipe (510).
9. a kind of device of pulse corona charge removing sintering flue gas fine particulate matter according to claim 8, its feature
It is：Pretreatment unit (400) includes pretreatment jet pipe (410) and diversion component (420), and wherein diversion component (420) is set
In the weather side of pretreatment jet pipe (410), pretreatment jet pipe (410) is used to spraying into agglomerator or water or salting liquid into pipeline
Droplet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621477543.3U CN206382119U (en) | 2016-12-30 | 2016-12-30 | A kind of device of pulse corona charge removing sintering flue gas fine particulate matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621477543.3U CN206382119U (en) | 2016-12-30 | 2016-12-30 | A kind of device of pulse corona charge removing sintering flue gas fine particulate matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206382119U true CN206382119U (en) | 2017-08-08 |
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ID=59490793
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621477543.3U Expired - Fee Related CN206382119U (en) | 2016-12-30 | 2016-12-30 | A kind of device of pulse corona charge removing sintering flue gas fine particulate matter |
Country Status (1)
| Country | Link |
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| CN (1) | CN206382119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694225A (en) * | 2016-12-30 | 2017-05-24 | 安徽工业大学 | Device for removing fine particulate matter of sintering flue gas by pulse corona charge |
| CN113369017A (en) * | 2021-06-15 | 2021-09-10 | 河南科技大学 | Electrostatic discrete microparticle continuous generation system |
-
2016
- 2016-12-30 CN CN201621477543.3U patent/CN206382119U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694225A (en) * | 2016-12-30 | 2017-05-24 | 安徽工业大学 | Device for removing fine particulate matter of sintering flue gas by pulse corona charge |
| CN113369017A (en) * | 2021-06-15 | 2021-09-10 | 河南科技大学 | Electrostatic discrete microparticle continuous generation system |
| CN113369017B (en) * | 2021-06-15 | 2023-07-21 | 河南科技大学 | Continuous generation system of electrostatic discrete microparticles |
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