CN110180297A - A kind of device and method of more cooperation-removal fine particles - Google Patents
A kind of device and method of more cooperation-removal fine particles Download PDFInfo
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- CN110180297A CN110180297A CN201910390745.6A CN201910390745A CN110180297A CN 110180297 A CN110180297 A CN 110180297A CN 201910390745 A CN201910390745 A CN 201910390745A CN 110180297 A CN110180297 A CN 110180297A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The present invention relates to a kind of device and methods of more cooperation-removal fine particles, dust-removing box inner space is divided into aerosol turbulent flow and acoustic agglomeration area, more collaboration reunion areas, acoustic-electric coupling reunion dust collection section and inertial settling dust collection section from top to bottom, sonic generator is mounted on the top of dust-removing box, be used to form vertically through sound field；Vapor and chemical agglomeration agent access pipeline are connected with nozzle, and nozzle is arranged straight down, for spraying vapor and chemical agglomeration agent to more collaboration reunion areas；Plate electrode is through more collaboration reunion areas, acoustic-electric coupling reunion dust collection section and inertial settling dust collection section；Sink is located at more collaboration reunion areas top, for providing water flow for plate electrode, plate electrode inner wall is made to form moisture film；The setting of prickle line electrode couples reunion dust collection section in acoustic-electric, for generating radially-arranged electric field.The present invention is using classification coalescence removing paragraph by paragraph, and particulate matter adaptation range is extensive, and fine particle removal efficiency is high, and the system stable operation time is longer.
Description
Technical field
The present invention relates to flue gas ash removal technical fields, in particular, being related to a kind of dress of more cooperation-removal fine particles
It sets and method.
Background technique
China is one using fire coal as the country of main energy sources, and coal burning is providing the same of heat source and power for us
When, serious Particulate Pollution is also brought, in the source of fine particle, discharged from coal-fired boiler occupies greatly, special
It is not in the widely used mediumand smallscale industrial boilers of every profession and trade and Industrial Stoves, due to lacking corresponding environment protection control equipment, dirt
Dye is particularly acute.Aerosol particle object, especially fine particle PM2.5, people can be seriously affected after being discharged into air
Daily life and work, or even threaten the life security of people.It is small in size, light-weight due to fine particle, big
The residence time is long in gas, and floating distance is remote, and coverage is wide.And due to its unique photoextinction, environment can be seriously reduced
Visibility, cause large area haze weather, influence people and normally go on a journey.In addition, the specific surface area of fine particle is bigger, greatly
Its surface can be enriched in by measuring poisonous and hazardous heavy metal, and human body is limited to the blocking capability of fine particle causes fine particle can
To enter human respiratory tract, be deposited in alveolar, heavy metal therein can enter blood of human body, cause asthma, bronchus and the heart
The disease of blood vessel etc., is detrimental to health.
The most of coal-fired power station boilers in China mainly use the particle in electrostatic precipitator (ESP) removing tail flue gas at present
Object.Efficient electrostatic precipitator efficiency of dust collection can be up to 99.9%, but for fine particle, especially partial size at 0.1 micron
To 1.0 microns of particulate matter, the ratio for still suffering from 15% or so escapes into atmosphere.Therefore consider to fold in electrostatic dust collection mechanism
Kind of a particulate matter agglomeration is added, allows fine particle first to reunite the particulate matter of long great achievement greater particle size, then pass through electrostatic dust collection and make
With being collected.The method of agglomeration currently studied includes: electric reunion, acoustic agglomeration, phase transformation condensation growth and chemical agglomeration
Etc., but these method of agglomeration independent role Shi Douyou certain drawbacks, the agglomerating effect to fine particle be not it is obvious that
So final fine particle removal efficiency cannot effectively improve.
Such as: Authorization Notice No. is the Chinese patent of CN103736356B: a kind of sonic agglomeration-conventional dust removal is compound to be taken off
Except the device of fine particle, it is laid with line source or area source of sound using at flue four sides or two adjacent surfaces in the patent application,
So that fine particle is adsorbed onto large particle or fine particle coacervating large particle object using acoustic agglomeration mechanism, recycles conventional remove
Dirt device is dusted, although fine particle can be removed to a certain extent, removal efficiency is relatively low.
Therefore, it is very necessary to develop a kind of novel fine particle efficient removal device based on more Synergistic methods.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide it is a kind of it is reasonable in design,
The device of more high cooperation-removal fine particles of removal efficiency, and the method for providing removing fine particle.
Technical solution used by the present invention solves the above problems is: a kind of device of more cooperation-removal fine particles,
Including the dust-removing box being vertically arranged, the top of the dust-removing box is provided with aerosol particle object access road, dust-removing box
Lower part be provided with aerosol outlet channel, the aerosol particle object access road and aerosol exit passageway are along level side
To setting, the bottom of dust-removing box is connected with ash bucket；It is characterized by also including sonic generator, vapor and chemical agglomerations
Agent accesses the poly- effect ring of pipeline, aerosol turbulent flow, sink, plate electrode and prickle line electrode；The dust-removing box inner space is from upper
It is divided into aerosol turbulent flow under and and acoustic agglomeration area, more collaboration reunion areas, acoustic-electric coupling reunion dust collection section and inertial settling is received
Dirt area, the aerosol particle object access road are connected with aerosol turbulent flow and acoustic agglomeration area, the aerosol outlet
Channel is connected with inertial settling dust collection section；The sonic generator is mounted on the top of dust-removing box, for making dust cleaning case
Internal portion formed vertically through sound field；The poly- effect ring of the aerosol turbulent flow is bonded installation with dust-removing box inner wall, and is located at gas
Colloidal sol turbulent flow and acoustic agglomeration area；The vapor and chemical agglomeration agent access pipeline from outside through the cabinet of dust-removing box
Wall into aerosol turbulent flow and acoustic agglomeration area, and is located above the poly- effect ring of aerosol turbulent flow, the vapor and chemical agglomeration
The end of agent access pipeline is connected with the lower part formation outlet flow of nozzle, the aerosol turbulent flow and acoustic agglomeration area, described
Nozzle is arranged in straight down at outlet flow center, for spraying vapor and chemical agglomeration agent to more collaboration reunion areas；
The plate electrode is in the thin-walled tubular being open up and down, is sleeved on dust-removing box with keeping certain distance with dust-removing box inner wall
It is interior, and through more collaboration reunion areas, acoustic-electric coupling reunion dust collection section and inertial settling dust collection section；The sink is located at more associations
Plate electrode inner wall is set to form moisture film for providing water flow for plate electrode with reunion area top；The prickle line electrode is along vertical
Direction is arranged at the center of acoustic-electric coupling reunion dust collection section, for generating radially-arranged electric field.
Preferably, the dust-removing box is columnar structured；The aerosol particle object access road arranged tangential is in gas
At the top of colloidal sol turbulent flow and acoustic agglomeration area, tangential admission is collectively formed with cylinder-shaped dust-removing box and the poly- effect ring of aerosol turbulent flow
Class whirlwind cutter structure；The inner wall of the poly- effect ring of the aerosol turbulent flow is annular slope, and inclination angle is at least 60o.
Preferably, the bottom of the ash bucket offers ash bucket serum outlet.
Preferably, the nozzle uses pressure rotating nozzle, and the export direction of nozzle is backwards to aerosol direction of flow.
Preferably, the sink is supplied water by moisture film electrode external water source access pipeline, and the moisture film electrode external water source connects
Enter pipeline from outside through the box body wall of dust-removing box, thus connection water channel.
Preferably, the sink is set in the region being mounted between dust-removing box inner wall and plate electrode outer wall in ring, and position
Below the poly- effect ring of aerosol turbulent flow, one circle baffle of connection, the baffle outer wall and plate electrode below the poly- effect ring of aerosol turbulent flow
There is certain interval between inner wall, the top surface of the sink is slightly above plate electrode top surface, offers overflow port on the top surface of sink,
The water flowed out from overflow port is under the action of the poly- effect ring bottom surface of aerosol turbulent flow and baffle, along the baffle outer wall and plate electrode
Gap between inner wall flows downward out, and plate electrode is made to form moisture film electrode.
Preferably, the prickle line electrode connects the negative direct current electric wire of a high pressure；One end of the negative direct current electric wire of high pressure
It is pierced by dust-removing box, to connect with external power supply.
Preferably, the plate electrode and prickle line electrode are all made of stainless steel material；Prickle on the prickle line electrode
Equidistant radial distribution is on electrode, in the cylinder-shaped radially-arranged electric field of dust-removing box Inner Constitution.
Preferably, the ash bucket inner wall coats wear-resistant corrosion resistant sound-absorbing material.
In order to solve the above technical problems, the present invention also provides another technical solutions: a kind of to utilize more cooperation-removal thin
The method that the device of grain object carries out removing fine particle, steps are as follows:
Step 1: starter: starting sonic generator, make to be formed inside dust-removing box vertically through sound field；Start nozzle,
To more collaboration reunion area injection vapor and chemical agglomeration agent；By being supplied in moisture film electrode external water source access tube road direction sink
Water makes plate electrode form moisture film electrode；Prickle line electrode, which is powered, generates radially-arranged electric field；
Step 2: aerosol particle object enters aerosol turbulent flow and acoustic agglomeration area through aerosol particle object access road, then
Under centrifugation, large-size particles object is separated and is turned down to after plate electrode along dust-removing box box body wall by moisture film
Trapping is washed away into ash bucket；Since the poly- effect ring of aerosol turbulent flow generates class whirlwind cutter effect, aerosol particle object formation office
Portion's ascending air is vortexed；The sound field reflecting (reuniting in the same direction, sound causes turbulent flow harmony wave wake effect) that sonic generator generates promotes
Local ascending air be vortexed in particulate matter collision reuniting effect, and under the blocking at the top of dust-removing box, aerosol
Grain object is downwardly into more collaboration reunion areas；
Step 3: outfield coalescence: the aerosol particle object in more collaboration reunion areas is in sound wave, the work of vapor and chemical agglomeration agent
Under, fine particle pass through respectively " acoustic agglomeration mechanism ", " phase transformation condensation growth mechanism ", " chemical agglomeration Flocculating mechanism " and
" steam coring condensation growth mechanism " and agglomerate into large-size particles object, detailed process are as follows: saturated steam and chemical agglomeration
Agent passes through vapor respectively and chemical agglomeration agent access pipeline enters after nozzle along airflow direction penetrating, and wherein vapor is with thin
Particulate matter be the nuclei of condensation occur coring condensation and phase transformation condensation, make particulate matter partial size and quality increase, and generate diffusiophoresis and
The effect of thermophoresis, promotes Particles transport to collide, to make fine particle Caragana seed pests；Chemical agglomeration agent be ejected after on surface
It is atomized into droplet under the interaction of tension, viscous force and air drag, promotes gas molten by the physical action of theory of flocculation
Glue particulate matter Caragana seed pests；Vertically through sound field by sound field reflecting (in the same direction reunite, sound cause turbulent flow harmony wave wake effect)
Further promote the agglomeration two-by-two between particulate matter and steam drop；
Step 4: the aerosol particle object after the coalescence of outfield enters acoustic-electric coupling reunion dust collection section, apply on prickle line electrode
Negative dc high voltage is electric, forms violent Point Corona Discharge on prickle point, and the region between plate electrode forms radial point
The electric field of cloth exists simultaneously a large amount of cation, anion and high energy free electron, in corona zone in narrow corona region
Domain endoparticle object migrates that the charged and charged two ways of free diffusing is charged by heteropolarity, and electrically charged particle passes through diffusion by electric field
Effect and coulomb effect mutually collision coalescence；Outside corona region, anion and free electron are existed simultaneously, particulate matter passes through electricity
Field migration is charged and the charged two ways of free diffusing is charged by same polarity, and partial state of charge particle is mutually collided by diffusion
Coalescence；Vertically through sound field by sound field reflecting (in the same direction reunite, sound cause turbulent flow harmony wave wake effect) promote particulate matter it
Between collision coalescence；Vertically through sound field and radially-arranged electric field intersect, electric field migration and sound wave are rolled into a ball in the same direction
Poly- effect intercouples, and further increases the zone of action and collision probability that particulate matter collision is reunited, promotes the collision of particulate matter
Coalescence；Particulate matter and water vapor particle after coalescence is mobile to plate electrode under electric field migration, will be large-sized most of
Grain object and water vapor particle are collected on moisture film electrode, deashing dedusting are carried out by moisture film electrode ash removal method, by big partial size
Grain object pours ash bucket, wherein moisture film electrode ash removal method are as follows: clean water source accesses pipeline by moisture film electrode external water source and enters
Sink, the top surface of sink, which is provided with overflow port water inlet can preferably be avoided to shove, interferes the formation of moisture film, when the water in sink
Water flow can overflow into the gap of baffle and plate electrode when position is more than overflow open height, and under the action of the baffle, water flow is in plate
The surface of electrode is uniformly distributed to form water membrane from top to bottom, when aerosol particle object and water vapor particle are trapped by plate electrode
When, in the case where moisture film washes away the collective effect with flow field forces, mixed serum is directly entered ash bucket and passes through ash bucket serum outlet to outlet
Out, so that dust stratification will not be formed on plate electrode surface, the stabilization of electric field is maintained, inverse corona and reentrainment of dust are avoided, improves receipts
The efficiency of dirt；
Step 5: remaining aerosol particle object enters inertial settling dust collection section, since aerosol outlet and air flow direction are in hang down
Straight arrangement, particulate matter enter ash bucket under effect of inertia and are trapped by ash bucket slurries, and the aerosol stream 90o after dedusting is turned to
It is discharged into aerosol outlet channel, since the moisture film souring of plate electrode forms water curtain at aerosol outlet channel, leads to
The particulate matter that water droplet washes away in further removing aerosol stream is crossed, to complete the subtractive process of aerosol particle object.
Compared with prior art, the present invention having the following advantages that and effect:
1, dust-removing box uses the vertically integrated cylindrical form of more synergistic effects, keeps aerosol particle object channel
Flow field it is unimpeded, avoid regional area from dust stratification and fouling occur；
2, using the sound field and gravitational field extended vertically through as basic role field, centrifugation, phase transformation are successively combined from top to bottom
Coagulation, chemical agglomeration effect, coagulation and effect and inertial settling effect, realize the removing of aerosol particle object, especially
The subtractive process of fine particle is classified paragraph by paragraph, alleviates the operating pressure in single dedusting region, is conducive to improve particulate matter
Removal effect；
3, " aerosol turbulent flow and acoustic agglomeration area " is arranged in the top of whole device effect, on the one hand passes through centrifuge separation
Large-size particles object is carried out pre-separation removal by effect, on the other hand promotes the reunion of small size particle by sound field reflecting,
To greatly mitigate the coalescence dedusting workload of subsequent sections；Meanwhile the poly- effect ring inner wall inclination angle of aerosol turbulent flow is set
It is set at least 60o, much larger than the angle of repose of general flying dust, avoids the dust stratification of poly- effect ring；
4, " more collaboration reunion area " are arranged in the top of moisture film pole plate effect, on the one hand by " acoustic agglomeration mechanism ",
" phase transformation condensation growth mechanism ", " chemical agglomeration Flocculating mechanism " and " steam coring condensation growth mechanism " promote fine particle
Caragana seed pests, maximize removal effect early period for improving particulate matter, can be on the other hand by subsequent coalescence removing effect
Farthest water vapor particle caused by " more collaboration reunion areas " is fallen in removing, avoids generating flue gas subsequent processing bigger
It influences；
5, the applied field that intersects vertically through sound field and radial distribution electric field is constructed in " acoustic-electric couples reunion dust collection section ",
The zone of action and collision probability that particulate matter collision is reunited are increased, further promotes the collision coalescence of particulate matter, enhances
The removal effect of grain object；
6, inertial separation and water curtain flushing action are combined in " inertial settling dust collection section ", further separation removal aerosol
In particulate matter；
7, using moisture film electrode ash removal method, convenient for the deashing of plate electrode, while moisture film electrode is arranged vertically, in sluicing and
Under flow field forces collective effect, avoids forming dust stratification on plate electrode surface, maintain the stabilization of electric field, avoid inverse corona and secondary raise
Dirt improves the effect gathered dust；
8, the more cooperation-removal fine particle devices effectively combine outfield coalescence and electrostatic dust collection effect, using piecewise classification
Coalescence removing makes fine particle under the action of the multi-acting forces such as electric field force, sound field power, thermophoretic forces, liquid bridge power and solid bridge power
Reunite the particulate matter of long great achievement greater particle size, realizes efficient removal, particulate matter wide adaptation range eventually by electrostatic precipitator technology
General, fine particle removal efficiency is high, and the system stable operation time is longer.
Detailed description of the invention
It, below will be to specific implementation in order to illustrate more clearly of the specific embodiment of the invention or scheme in the prior art
Mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, the accompanying drawings in the following description
It is some embodiments of the present invention, for those skilled in the art, without creative efforts, may be used also
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Description of symbols: aerosol particle object access road 1, aerosol turbulent flow and acoustic agglomeration area 2, more collaboration groups
Poly- area 3, acoustic-electric couple reunion dust collection section 4, inertial settling dust collection section 5, aerosol outlet channel 6, sonic generator 7, vapor
And chemical agglomeration agent access pipeline 8, nozzle 9, the poly- effect ring 10, baffle 11, moisture film electrode external water source access tube of aerosol turbulent flow
Road 12, sink 13, plate electrode 14, the negative direct current electric wire 15 of high pressure, prickle line electrode 16, ash bucket 17, ash bucket serum outlet 18, dedusting
Cabinet 19.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to Fig. 1, the present embodiment is a kind of device of more cooperation-removal fine particles, including the dust cleaning case being vertically arranged
Body 19, sonic generator 7, vapor and chemical agglomeration agent access pipeline 8, the poly- effect ring 10, sink 13, plate electrode of aerosol turbulent flow
14 and prickle line electrode 16.
In the present embodiment, dust-removing box 19 be it is columnar structured, upper part is provided with aerosol particle object access road 1,
Its underpart is provided with aerosol outlet channel 6, and aerosol particle object access road 1 and aerosol exit passageway 6 are along level side
To setting, the bottom of dust-removing box 19 is connected with ash bucket 17, and the bottom of ash bucket 17 offers ash bucket serum outlet 18, in ash bucket 17
Wall surface coats wear-resistant corrosion resistant sound-absorbing material.
In the present embodiment, 19 inner space of dust-removing box is divided into aerosol turbulent flow and acoustic agglomeration area 2, more from top to bottom
Cooperate with reunion area 3, acoustic-electric coupling reunion dust collection section 4 and inertial settling dust collection section 5, aerosol particle object access road 1 molten with gas
Glue turbulent flow and acoustic agglomeration area 2 are connected, and aerosol outlet channel 6 is connected with inertial settling dust collection section 5.
In the present embodiment, sonic generator 7 is mounted on the top of dust-removing box 19, is formed inside dust-removing box 19 for making
Vertically through sound field.The poly- effect ring 10 of aerosol turbulent flow be bonded installation with 19 inner wall of dust-removing box, and positioned at aerosol it is turbulent and
Acoustic agglomeration area 2,1 arranged tangential of aerosol particle object access road is in 2 top of aerosol turbulent flow and acoustic agglomeration area, with cylinder
Shape dust-removing box 19 and the poly- effect ring 10 of aerosol turbulent flow collectively form the class whirlwind cutter structure of tangential admission.Aerosol is disorderly
The inner wall of the poly- effect ring 10 of stream is annular slope, inclination angle 60o.
In the present embodiment, vapor and chemical agglomeration agent access pipeline 8 from outside through dust-removing box 19 box body wall, into
Enter aerosol turbulent flow and acoustic agglomeration area 2, and is located at poly- 10 top of effect ring of aerosol turbulent flow, vapor and chemical agglomeration agent access
The end of pipeline 8 is connected with nozzle 9, and nozzle 9 uses pressure rotating nozzle, and export direction is backwards to aerosol direction of flow.
Outlet flow is formed at the lower part in aerosol turbulent flow and acoustic agglomeration area 2, and nozzle 9 is arranged in straight down at outlet flow center,
For spraying vapor and chemical agglomeration agent to more collaboration reunion areas 3.
In the present embodiment, plate electrode 14 is in the thin-walled tubular being open up and down, keeps a spacing with 19 inner wall of dust-removing box
It is liftoff to be sleeved in dust-removing box 19, and received through more collaboration reunion areas 3, acoustic-electric coupling reunion dust collection section 4 and inertial settling
Dirt area 5.
In the present embodiment, sink 13 is located at 3 top of more collaboration reunion areas, set in ring be mounted on 19 inner wall of dust-removing box with
In region between 14 outer wall of plate electrode, and it is located at poly- 10 lower section of effect ring of aerosol turbulent flow, below the poly- effect ring 10 of aerosol turbulent flow
Baffle 11 is enclosed in connection one, has certain interval between 14 inner wall of 11 outer wall of baffle and plate electrode, the top surface of sink 13 is slightly above plate
14 top surface of electrode offers overflow port on the top surface of sink 13, and the water flowed out from overflow port is at poly- effect 10 bottom of ring of aerosol turbulent flow
Under the action of face and baffle 11, the gap between 14 inner wall of 11 outer wall of baffle and plate electrode is flowed downward out, and makes plate electrode 14
Form moisture film electrode.Sink 13 is supplied water by moisture film electrode external water source access pipeline 12, and moisture film electrode external water source accesses pipeline
12 from outside through dust-removing box 19 box body wall, thus connection water channel 13.
In the present embodiment, prickle line electrode 16 is arranged vertically at the center of acoustic-electric coupling reunion dust collection section 4, awns
It pierces line electrode 16 and connects the negative direct current electric wire 15 of a high pressure；One end of the negative direct current electric wire 15 of high pressure is pierced by dust-removing box 19, thus
It is connect with external power supply, prickle line electrode 16 generates radially-arranged electric field for being powered.
In the present embodiment, plate electrode 14 and prickle line electrode 16 are all made of stainless steel material；Awns on prickle line electrode 16
Equidistant radial distribution is pierced on electrode, in the radially-arranged electric field of cylinder-shaped 19 Inner Constitution of dust-removing box.
In the present embodiment, the method for carrying out removing fine particle using the device of more cooperation-removal fine particles, step
It is as follows:
Step 1: starter: starting sonic generator 7, make inside dust-removing box 19 formed vertically through sound field；Starting spray
Mouth 9, to more collaboration reunion area 3 injection vapor and chemical agglomeration agent；By moisture film electrode external water source access pipeline 12 to
It supplies water in sink 13, plate electrode 14 is made to form moisture film electrode；Prickle line electrode 16, which is powered, generates radially-arranged electric field；
Step 2: aerosol particle object enters aerosol turbulent flow and acoustic agglomeration area 2 through aerosol particle object access road 1, with
Afterwards under centrifugation, after large-size particles object is separated and turnes down to plate electrode 14 along 19 box body wall of dust-removing box
It is washed away by film entrapment into ash bucket 17；Since the poly- effect ring 10 of aerosol turbulent flow generates class whirlwind cutter effect, aerosol
Grain object forms local ascending air and is vortexed；The sound field reflecting that sonic generator 7 generates is reunited in the same direction, sound causes turbulent flow harmony wave rear stream
Effect promotes the collision reuniting effect of particulate matter in local ascending air vortex, and the blocking at 19 top of dust-removing box
Under, aerosol particle object is downwardly into more collaboration reunion areas 3；
Step 3: outfield coalescence: the aerosol particle object in more collaboration reunion areas 3 is in sound wave, vapor and chemical agglomeration agent
Under effect, fine particle pass through respectively " acoustic agglomeration mechanism ", " phase transformation condensation growth mechanism ", " chemical agglomeration Flocculating mechanism " with
And " steam coring condensation growth mechanism " and agglomerate into large-size particles object, detailed process are as follows: saturated steam and chemical radicals
Poly- agent passes through vapor respectively and chemical agglomeration agent is accessed after pipeline 8 enters nozzle 9 and sprayed into along airflow direction, wherein vapor
Coring condensation and phase transformation condensation occurs by the nuclei of condensation of fine particle, increases the partial size of particulate matter and quality, and generate diffusion
The effect of swimming and thermophoresis, promotes Particles transport to collide, to make fine particle Caragana seed pests；Chemical agglomeration agent be ejected after
It is atomized into droplet under the interaction of surface tension, viscous force and air drag, is promoted by the physical action of theory of flocculation
Aerosol particle object Caragana seed pests；Vertically through sound field is reunited in the same direction by sound field reflecting, sound causes turbulent flow harmony wave rear stream to imitate
The agglomeration two-by-two between particulate matter and steam drop should further be promoted；
Step 4: the aerosol particle object after the coalescence of outfield enters acoustic-electric coupling reunion dust collection section 4, applied on prickle line electrode 16
Add negative dc high voltage electric, form violent Point Corona Discharge on prickle point, and the region between plate electrode 14 forms diameter
To the electric field of distribution, a large amount of cation, anion and high energy free electron are existed simultaneously in narrow corona region, in electricity
Dizzy region endoparticle object is migrated charged charged by heteropolarity with the charged two ways of free diffusing by electric field, and electrically charged particle passes through
Diffusion and coulomb effect mutually collision coalescence；Outside corona region, anion and free electron are existed simultaneously, particulate matter is logical
It is charged charged by same polarity with the charged two ways of free diffusing to cross electric field migration, partial state of charge particle is mutual by diffusion
Collide coalescence；Vertically through sound field is reunited in the same direction by sound field reflecting, sound causes turbulent flow harmony wave wake effect promotion particulate matter
Between collision coalescence；Vertically through sound field and radially-arranged electric field intersect, electric field migration and sound wave are in the same direction
Agglomeration intercouples, and further increases the zone of action and collision probability that particulate matter collision is reunited, promotes touching for particulate matter
Hit coalescence；Particulate matter and water vapor particle after coalescence is mobile to plate electrode 14 under electric field migration, will most of big partial size
Particulate matter and water vapor particle be collected on moisture film electrode, by moisture film electrode ash removal method carry out deashing dedusting, by big grain
Diameter particulate matter pours ash bucket 17, wherein moisture film electrode ash removal method are as follows: clean water source passes through moisture film electrode external water source access tube
Road 12 enters sink 13, and the top surface of sink 13, which is provided with overflow port water inlet can preferably be avoided to shove, interferes the formation of moisture film,
When the water level in sink 13 is more than overflow open height, water flow can overflow into the gap of baffle 11 Yu plate electrode 14, in baffle
Under the action of 11, water flow is uniformly distributed to form water membrane from top to bottom on the surface of plate electrode 14, when aerosol particle object and
When water vapor particle is trapped by plate electrode 14, in the case where moisture film washes away the collective effect with flow field forces, mixed serum is directly entered ash bucket 17
And discharged by ash bucket serum outlet 18, so that dust stratification will not be formed on 14 surface of plate electrode, the stabilization of electric field is maintained, is kept away
Exempt from inverse corona and reentrainment of dust, improves the efficiency gathered dust；
Step 5: remaining aerosol particle object enters inertial settling dust collection section 5, since aerosol outlet 6 is in air flow direction
It is arranged vertically, particulate matter enters ash bucket 17 under effect of inertia and trapped by ash bucket slurries, the aerosol stream 90o after dedusting
It is redirected into the discharge of aerosol outlet channel 6, since the moisture film souring of plate electrode 14 is formed at aerosol outlet channel 6
Water curtain washes away the particulate matter in further removing aerosol stream by water droplet, to complete the removing of aerosol particle object
Journey.
It is any ripe although the present invention is disclosed as above with embodiment, its protection scope being not intended to limit the invention
The technical staff for knowing this technology changes and retouches made without departing from the spirit and scope of the invention, should belong to this
The protection scope of invention.
Claims (10)
1. a kind of device of more cooperation-removal fine particles, including the dust-removing box (19) being vertically arranged, the dust-removing box
(19) top is provided with aerosol particle object access road (1), and it is logical that the lower part of dust-removing box (19) is provided with aerosol outlet
Road (6), the aerosol particle object access road (1) and aerosol exit passageway (6) are horizontally disposed, dust-removing box
(19) bottom is connected with ash bucket (17)；It is characterized by also including sonic generator (7), vapor and chemical agglomeration agent to connect
Enter poly- effect ring (10) of pipeline (8), aerosol turbulent flow, sink (13), plate electrode (14) and prickle line electrode (16)；The dust cleaning case
Body (19) inner space is divided into aerosol turbulent flow and acoustic agglomeration area (2), more collaboration reunion areas (3), acoustic-electric couplings from top to bottom
Close reunion dust collection section (4) and inertial settling dust collection section (5), the aerosol particle object access road (1) and aerosol it is turbulent and
Acoustic agglomeration area (2) is connected, and the aerosol outlet channel (6) is connected with inertial settling dust collection section (5)；The sound
Wave producer (7) is mounted on the top of dust-removing box (19), for make to be formed inside dust-removing box (19) vertically through sound field；
Poly- effect ring (10) of the aerosol turbulent flow is bonded installation with dust-removing box (19) inner wall, and is located at aerosol turbulent flow and acoustic agglomeration
Area (2)；The vapor and chemical agglomeration agent access pipeline (8) from outside through the box body wall of dust-removing box (19), into gas
Colloidal sol turbulent flow and acoustic agglomeration area (2), and be located above poly- effect ring (10) of aerosol turbulent flow, the vapor and chemical agglomeration agent
The end of access pipeline (8) is connected with nozzle (9), and outlet stream is formed at the lower part of the aerosol turbulent flow and acoustic agglomeration area (2)
Road, the nozzle (9) are arranged in straight down at outlet flow center, for spraying vapor to more collaboration reunion areas (3)
With chemical agglomeration agent；The plate electrode (14) is in the thin-walled tubular being open up and down, keeps certain with dust-removing box (19) inner wall
It is sleeved in dust-removing box (19) to distance, and through more collaboration reunion areas (3), acoustic-electric coupling reunion dust collection section (4) and is used to
Property sedimentation dust collection section (5)；The sink (13) is located at more collaboration reunion area (3) tops, for providing water for plate electrode (14)
Stream makes plate electrode (14) inner wall form moisture film；The prickle line electrode (16) is arranged vertically at acoustic-electric coupling and reunites
At the center of dust collection section (4), for generating radially-arranged electric field.
2. the device of more cooperation-removal fine particles according to claim 1, it is characterised in that: the dust-removing box
It (19) is columnar structured；Aerosol particle object access road (1) arranged tangential is in aerosol turbulent flow and acoustic agglomeration area
(2) top collectively forms the class whirlwind of tangential admission with cylinder-shaped dust-removing box (19) and poly- effect ring (10) of aerosol turbulent flow
Cutter structure；The inner wall of poly- effect ring (10) of the aerosol turbulent flow is annular slope, and inclination angle is at least 60o.
3. the device of more cooperation-removal fine particles according to claim 1, it is characterised in that: the ash bucket (17)
Bottom offers ash bucket serum outlet (18).
4. the device of more cooperation-removal fine particles according to claim 1, it is characterised in that: the nozzle (9) is adopted
With pressure rotating nozzle, the export direction of nozzle (9) is backwards to aerosol direction of flow.
5. the device of more cooperation-removal fine particles according to claim 1, it is characterised in that: the sink (13) by
Moisture film electrode external water source accesses pipeline (12) and supplies water, and moisture film electrode external water source access pipeline (12) is from outside through removing
The box body wall of dirt cabinet (19), thus connection water channel (13).
6. the device of more cooperation-removal fine particles according to claim 1 or 5, it is characterised in that: the sink
(13) it is set in the region being mounted between dust-removing box (19) inner wall and plate electrode (14) outer wall in ring, and is located at aerosol turbulent flow
Below poly- effect ring (10), poly- effect ring (10) of aerosol turbulent flow connects circle baffle (11), baffle (11) outer wall and plate below
There is certain interval, the top surface of the sink (13) is slightly above plate electrode (14) top surface, sink (13) between electrode (14) inner wall
Top surface on offer overflow port, the water flowed out from overflow port is in poly- effect ring (10) bottom surface of aerosol turbulent flow and baffle (11)
Under effect, the gap between the baffle (11) outer wall and plate electrode (14) inner wall is flowed downward out, and forms plate electrode (14)
Moisture film electrode.
7. the device of more cooperation-removal fine particles according to claim 1, it is characterised in that: the prickle line electrode
(16) the negative direct current electric wire (15) of a high pressure is connected；One end of the negative direct current electric wire (15) of high pressure is pierced by dust-removing box (19),
To be connect with external power supply.
8. the device of more cooperation-removal fine particles according to claim 1 or claim 7, it is characterised in that: the plate electrode
(14) and prickle line electrode (16) is all made of stainless steel material；The equidistant radial distribution of prickle on the prickle line electrode (16)
In on electrode, in the radially-arranged electric field of cylinder-shaped dust-removing box (19) Inner Constitution.
9. the device of more cooperation-removal fine particles according to claim 1, it is characterised in that: in the ash bucket (17)
Wall surface coats wear-resistant corrosion resistant sound-absorbing material.
10. a kind of device using more cooperation-removal fine particles described in claim 1-9 any claim is taken off
Except the method for fine particle, it is characterised in that: steps are as follows:
Step 1: starter: starting sonic generator (7), make to be formed inside dust-removing box (19) vertically through sound field；It opens
Dynamic nozzle (9), to more collaboration reunion area (3) injection vapor and chemical agglomeration agent；It is accessed by moisture film electrode external water source
Pipeline (12) supplies water into sink (13), and plate electrode (14) is made to form moisture film electrode；Prickle line electrode (16), which is powered, generates radial direction
The electric field of distribution；
Step 2: aerosol particle object enters aerosol turbulent flow and acoustic agglomeration area through aerosol particle object access road (1)
(2), then under centrifugation, large-size particles object is separated and turnes down to plate along dust-removing box (19) box body wall
It is washed away by film entrapment into ash bucket (17) after electrode (14)；Since poly- effect ring (10) of aerosol turbulent flow generates class whirlwind cutter
Effect, aerosol particle object form local ascending air and are vortexed；The sound field reflecting that sonic generator (7) generates (is reunited, sound in the same direction
Cause turbulent flow harmony wave wake effect) promote local ascending air be vortexed in particulate matter collision reuniting effect, and in dedusting
Under blocking at the top of cabinet (19), aerosol particle object is downwardly into more collaboration reunion areas (3)；
Step 3: outfield coalescence: the aerosol particle object of more collaborations reunion area (3) is in sound wave, vapor and chemical agglomeration agent
Under the action of, fine particle passes through " acoustic agglomeration mechanism ", " phase transformation condensation growth mechanism ", " chemical agglomeration Flocculating mechanism " respectively
And " steam coring condensation growth mechanism " and agglomerate into large-size particles object, detailed process are as follows: saturated steam and chemistry
Agglomerator passes through vapor respectively and chemical agglomeration agent access pipeline (8) enters after nozzle (9) along airflow direction penetrating, wherein
Coring condensation occurs as the nuclei of condensation using fine particle for vapor and phase transformation condenses, and increases the partial size of particulate matter and quality, and produce
The effect of raw diffusiophoresis and thermophoresis, promotes Particles transport to collide, to make fine particle Caragana seed pests；Chemical agglomeration agent is sprayed
It is atomized into droplet under the interaction of surface tension, viscous force and air drag after out, is made by the physics of theory of flocculation
With promoting aerosol particle object Caragana seed pests；Vertically through sound field (reunited in the same direction, sound causes turbulent flow and sound wave by sound field reflecting
Wake effect) further promote agglomeration two-by-two between particulate matter and steam drop；
Step 4: the aerosol particle object after the coalescence of outfield enters acoustic-electric coupling reunion dust collection section (4), in prickle line electrode (16)
Upper application negative dc high voltage is electric, forms violent Point Corona Discharge, and the region between plate electrode (14) on prickle point
Radially-arranged electric field is formed, a large amount of cation, anion and high energy freely electricity are existed simultaneously in narrow corona region
Son, in corona region, endoparticle object is migrated charged charged by heteropolarity with the charged two ways of free diffusing by electric field, charged
Particle passes through diffusion and coulomb effect mutually collision coalescence；Outside corona region, anion and free electron are existed simultaneously,
Particulate matter migrates that the charged and charged two ways of free diffusing is charged by same polarity, and partial state of charge particle passes through diffusion by electric field
Effect mutually collision coalescence；Vertically through sound field by sound field reflecting (in the same direction reunite, sound cause turbulent flow harmony wave wake effect)
Promote the collision coalescence between particulate matter；Vertically through sound field and radially-arranged electric field intersect, electric field migration
It intercouples with sound wave agglomeration in the same direction, further increases the zone of action and collision probability that particulate matter collision is reunited, promote
The collision coalescence of particulate matter；Particulate matter and water vapor particle after coalescence is mobile to plate electrode (14) under electric field migration, will
Most of large-sized particulate matter and water vapor particle are collected on moisture film electrode, carry out deashing by moisture film electrode ash removal method
Large-size particles object is poured ash bucket (17), wherein moisture film electrode ash removal method by dedusting are as follows: clean water source passes through moisture film electrode
External water source accesses pipeline (12) and enters sink (13), and the top surface of sink (13), which is provided with overflow port, can preferably avoid water inlet
Shove and interfere the formation of moisture film, when the water level in sink (13) be more than overflow open height when water flow can overflow into baffle (11) with
The gap of plate electrode (14), under the action of baffle (11), water flow is uniformly distributed from top to bottom on the surface of plate electrode (14)
Water membrane is formed, when aerosol particle object and water vapor particle are trapped by plate electrode (14), is washed away and flow field forces in moisture film
Mixed serum is directly entered ash bucket (17) and is discharged by ash bucket serum outlet (18) under collective effect, thus will not be in plate
Electrode (14) surface forms dust stratification, maintains the stabilization of electric field, avoids inverse corona and reentrainment of dust, improves the efficiency gathered dust；
Step 5: remaining aerosol particle object enters inertial settling dust collection section (5), due to aerosol outlet (6) and air-flow stream
To perpendicular arrangement, particulate matter enters ash bucket (17) under effect of inertia and is trapped by ash bucket slurries, the aerosol after dedusting
Air-flow 90o is redirected into aerosol outlet channel (6) discharge, since the moisture film souring of plate electrode (14) is in aerosol outlet
Water curtain is formed at channel (6), the particulate matter in further removing aerosol stream is washed away by water droplet, to complete aerosol
The subtractive process of grain object.
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| CN113731097A (en) * | 2021-09-07 | 2021-12-03 | 河北师范大学 | Device for regulating and controlling water vapor environment and promoting fine particles to grow up based on influence of carrier gas components |
| CN113943015A (en) * | 2021-11-15 | 2022-01-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method and equipment of titanium white by chlorination process |
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