CN108722668A - A kind of regulating temperature and humidity screening electric precipitator - Google Patents
A kind of regulating temperature and humidity screening electric precipitator Download PDFInfo
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- CN108722668A CN108722668A CN201710243631.XA CN201710243631A CN108722668A CN 108722668 A CN108722668 A CN 108722668A CN 201710243631 A CN201710243631 A CN 201710243631A CN 108722668 A CN108722668 A CN 108722668A
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- flue gas
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- 239000012716 precipitator Substances 0.000 title claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 30
- 238000012216 screening Methods 0.000 title claims abstract description 29
- 239000000428 dust Substances 0.000 claims abstract description 93
- 239000003546 flue gas Substances 0.000 claims abstract description 79
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 76
- 230000005684 electric field Effects 0.000 claims abstract description 39
- 230000008676 import Effects 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 49
- 239000010959 steel Substances 0.000 claims description 49
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000001556 precipitation Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
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- 238000003892 spreading Methods 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000005012 migration Effects 0.000 description 7
- 238000013508 migration Methods 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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- 239000012717 electrostatic precipitator Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/014—Addition of water; Heat exchange, e.g. by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
Abstract
The invention discloses a kind of regulating temperature and humidities to sieve electric precipitator, including sequentially connected smoke temperature reducer, flue gas humidity control device and electrical dust collector device, along flow of flue gas direction, the electrical dust collector device includes import loudspeaker, conventional electric field, screening electric field and outlet loudspeaker successively, and water conservancy diversion dust collect plant is equipped in the import loudspeaker.It is an advantage of the invention that：It can ensure that flue-gas temperature deep-graded cools down, dust is modified specific resistance reduction, adhesion increases raising efficiency of dust collection, is stripped of the higher dust of adhesion, improves dust collection efficiency, realizes that dust classification removes；System particles object removal efficiency is greatly improved, precondition is provided for the realization of stablizing of coal-burning power plant's particulate matter minimum discharge；Since exhaust gas dust adhesion increases after flue gas water spray damping, efficiency of dust collection effectively improves；It realizes while adjusting electric precipitator import smoke moisture and temperature to improve dust collection efficiency, reduce energy consumption.
Description
Technical field
The present invention relates to a kind of regulating temperature and humidities to sieve electric precipitator.
Background technology
The particulate matter of coal-burning power plant's discharge includes PM2.5A fine grained, condensable particle and droplet containing soluble salt, be
The one of the major reasons for causing serious gray haze in recent years, it is substantially full with implementing in full for coal-burning power plant of China minimum discharge
Foot-powder dirt emission request, but conventional dry electric precipitator still can not realize 10mg/m under the conditions of low energy consumption3Stable row below
It puts.
Existing electric precipitator has following defect：
1. existing electrostatic precipitator generally uses the pole of " pole plate-polar curve " to match pattern, pole plate arrangement and flue gas stream direction
Parallel, the migration velocity that there are reentrainment of dust for this structure obviously, dust need are enough passes perpendicularly through flue gas and is adsorbed onto on anode plate
The problems such as.
2. existing electric precipitator does not account for adjusting electric precipitator import smoke moisture and temperature simultaneously to improve electric precipitation
Efficiency reduces energy consumption.
3. flue-gas temperature is only reduced to 90 DEG C or so by existing low temperature electric precipitator, that flue-gas temperature is not further
80 DEG C or so are reduced to, to further increase dust collection efficiency, reduces energy consumption.
The cathode of 4 existing electric precipitators generally use it is linear, individual cathode structure use plate shape auxiliary electrode, palette with
Flue gas direction is parallel, does not play the role of dust；
5. its guide functions of the deflector of existing electric precipitator import loudspeaker, effect of not gathering dust；
Desulfurization wastewater is only directly sprayed onto electric precipitator front end smoke canal by 6 existing " desulfurization wastewater zero-emissions ", and there are electricity to remove
The problem that dirt device airflow-distribution board causes dust stratification serious because of reasons such as humidity increase, waste water saliferous, and desulfurization wastewater sprays into system
System lacks on-bne repair maintenance system, and there are blockage problems.
7. existing dedusting technology can not effectively remove condensable particle and droplet containing soluble salt.
Invention content
The purpose of the present invention is to provide a kind of regulating temperature and humidities to sieve electric precipitator, can effectively solve the problem that existing deduster effect
The problem of rate is low, high energy consumption.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of regulating temperature and humidity screening
Electric precipitator, including sequentially connected smoke temperature reducer, flue gas humidity control device and electrical dust collector device, along flow of flue gas direction,
The electrical dust collector device includes import loudspeaker, conventional electric field, screening electric field and outlet loudspeaker successively, is equipped in the import loudspeaker
Water conservancy diversion dust collect plant.
Preferably, it is all provided in each import loudspeaker there are four cathode hanger, four cathode hangers connect one
High voltage power supply；The conventional electric field includes at least one electric precipitation room, is set in each electric precipitation room there are four cathode hanger, described
Four cathode hangers connect a high voltage power supply；The screening electric field includes at least one screening electric precipitation room, each sieve
Divide and be equipped with eight cathode hangers in electric precipitation room, eight cathode hangers connect a high voltage power supply；Multizone is independently-powered,
Ensure each region powered stable, is conducive to stablize ramping effect.
Preferably, the screening electric field includes cathode and anode, and the cathode and anode are steel wire, the cathode and
Anode is vertical with flue gas flow direction；Flue gas by sieving electric field passes perpendicularly through cathode and anode, avoids rapping reentrainment of dust,
Effectively increase dust migration velocity.
Preferably, the cathode is equipped with several corona pins, and the corona pin includes screw and nut, and the tip of screw is remote
From cathode, the tail portion of screw is fixed on by nut on cathode；Using screw head point discharge, manufacturing cost is reduced, is not had to
It goes specially to design corona pin again, and all very convenient by nut fixation handling maintenance.
Preferably, the spacing of the cathode and anode is 400-500mm, and steel wire net height is 2000mm, and steel wire is wide
Degree is 1000mm, the square hole for being 8mm × 8mm on steel wire；The spacing of cathode and anode ensures the spacing of best dust removing effects,
The height or width of steel wire are crossed conference and are easily deformed, and size is too small not economical enough.
Preferably, in the screening electric field cathode of each power supply zone by framework composition together, the anode
Often row is independent at one group；Cathode and anode is allowed to play maximum effect.
Preferably, the water conservancy diversion dust collect plant includes deflector, anode dust-collecting mechanism and cathode dust-collecting mechanism, by flue gas stream
Dynamic direction, the deflector are located at the upstream of anode dust-collecting mechanism and cathode dust-collecting mechanism；Water conservancy diversion first is carried out to the flue gas of entrance,
First time dust, the big dust of removal adhesion are carried out again.
Preferably, the cathode dust-collecting mechanism includes cathode frame, cathode rapping axis and cathode rapping motor, the cathode
It is equipped with cathode line or cathode steel wire in frame, often arranges cathode frame top and is hung in import loudspeaker by insulated hanging pole, phase
The bottom of adjacent cathode frame is fixedly connected, and position corresponding with often row's cathode frame is equipped with beater on cathode rapping axis, described
Cathode rapping axis is connected with cathode rapping motor, and the cathode rapping motor is fixed on the top of import loudspeaker；Cathode frame is all
It links together, shortens the rapping time.
Preferably, the anode dust-collecting mechanism includes anodic porous plate and cathode vibrator, adjacent two rows of cathode frames
Anodic porous plate described in a row is equipped between frame, the level height in anodic porous board bottom portion is more than the water of cathode frame bottom
Flat height, cathode vibrator include anode electric motor of shaker and anode rapping shaft, on anode rapping shaft with often arrange anodic porous plate
Corresponding position is equipped with beater, and the anode rapping shaft is connected with anode electric motor of shaker, and the anode electric motor of shaker is fixed on
The lower part of import loudspeaker；Dust is more on anodic porous plate, needs independent rapping, ensures ramping effect.
Preferably, the left and right sides of the anodic porous plate is equipped with the bevelling that flue gas is imported to anodic porous plate, the sun
Equally distributed through-hole is provided on the porous plate of pole, both sides are angled so as to flue gas water conservancy diversion, and through-hole then ensures flue gas normal stream
It is logical, make flue gas as possible uniformly through each through-hole.
Preferably, it is equipped on the deflector, anode dust-collecting mechanism and cathode dust-collecting mechanism and spreads flue gas around
Flow distribution plate, to ensure that the air-flow in conventional electric field is uniform.
Preferably, the flue gas humidity control device includes the water-supply-pipe being arranged in flue, and the end of the water-supply-pipe is equipped with
Nozzle, the nozzle height are staggered, and nozzle sprays flow direction and flow of flue gas is reversely consistent, and the waste water of penetrating is with cigarette
Gas is spread together.
Preferably, the water-supply-pipe windward side is equipped with abrasionproof angle steel, avoids causing because high concentrate dust washes away water-supply-pipe
Abrasion leakage.
Preferably, it is connected by transparent hose between the water-supply-pipe and water inlet manifold, the both ends of the transparent hose are equal
Equipped with shut-off valve, each pipeline water delivery performance is observed in realization online, and realizes on-bne repair and maintenance.
Preferably, dust collection plate is equipped in the outlet loudspeaker, the dust collection plate includes plate body, and the left and right sides of plate body is equipped with
Towards the first side plate of flue gas upstream, the front end of every block of first side plate is equipped with towards the second side plate of plate body center, two pieces of the second sides
There are fume inlet passage between plate, both sides form frame-shaped construction, and ultrafine dust is charged in the part of absorption screening electric field escape.
Compared with prior art, it is an advantage of the invention that：It can be ensured by smoke temperature reducer and flue gas humidity control device
Flue-gas temperature deep-graded cools down, and dust is modified specific resistance reduction, adhesion increases raising efficiency of dust collection, at import loudspeaker
It is higher that the water conservancy diversion integrating device of setting is stripped of the adhesion generated by smoke temperature reducer and the setting of flue gas humidity control device
Dust improves dust collection efficiency, then coordinates with electrical dust collector device, realizes dust classification removal；
Flue gas is down to 80 DEG C by smoke temperature reducer and flue gas humidity control device, effectively by the SO in flue gas3Condensation product
Dew, and neutralized by dust surface alkalinty oxide, it is stripped of downstream (NH4)2SO4The reactant SO of formation3, to make coal-fired electricity
The important component SO of factory's flue gas particles discharge3(condensable particulate matter) and (NH4)2SO4(droplet containing soluble salt) obtains
It effectively removes, greatly improves system particles object removal efficiency, provided for the realization of stablizing of coal-burning power plant's particulate matter minimum discharge
Precondition；
Since exhaust gas dust adhesion increases after flue gas water spray damping, efficiency of dust collection effectively improves；It realizes simultaneously
Electric precipitator import smoke moisture and temperature are adjusted to improve dust collection efficiency, reduces energy consumption.
Description of the drawings
Fig. 1 is the structural schematic diagram that a kind of regulating temperature and humidity of the present invention sieves electric precipitator；
Fig. 2 be Fig. 1 in A to structural schematic diagram；
Fig. 3 is the structural schematic diagram that a kind of regulating temperature and humidity of the present invention sieves import loudspeaker in electric precipitator；
Fig. 4 is partial enlarged view at D in Fig. 3；
Fig. 5 is the structural schematic diagram that a kind of regulating temperature and humidity of the present invention sieves electric precipitator Anodic deflector；
Fig. 6 is C-C sectional views in Fig. 5；
Fig. 7 is B-B sectional views in Fig. 1；
Fig. 8 is that a kind of regulating temperature and humidity of the present invention sieves the stereogram that electric field negative pole part and anode portion are sieved in electric precipitator；
Fig. 9 is that a kind of regulating temperature and humidity of the present invention sieves screening electric field flue gas flow direction schematic diagram in electric precipitator；
Figure 10 is the flow of flue gas schematic diagram in electrical dust collector device in a kind of regulating temperature and humidity screening electric precipitator of the present invention；
Figure 11 is that a kind of regulating temperature and humidity of the present invention sieves plate structure schematic diagram of gathering dust in electric precipitator；
Figure 12 is F-F sectional views in Figure 10.
Arrow in above-mentioned figure is flow of flue gas direction.
Specific implementation mode
It is the embodiment that a kind of regulating temperature and humidity of the present invention sieves electric precipitator refering to fig. 1, a kind of regulating temperature and humidity screening electricity removes
Dirt device, including sequentially connected smoke temperature reducer 1, flue gas humidity control device 2, import loudspeaker 3, conventional electric field 4, screening electric field 5
With outlet loudspeaker 6.
As shown in Fig. 2, flue gas humidity control device 2 includes the water-supply-pipe 23 being arranged in flue 22, the end of the water-supply-pipe 23
Portion is equipped with nozzle 24, and 24 height of the nozzle, left and right are staggered, and nozzle 24 sprays flow direction and flow of flue gas reversed one
It causes, the waste water of penetrating is spread together with flue gas, and 23 windward side of water-supply-pipe is equipped with abrasionproof angle steel, avoids washing away because of high concentrate dust
Water-supply-pipe 23 and cause abrasion reveal, and water-supply-pipe 23 use stainless steel, with reduce corrosion, improve service life.
In 22 upside of flue, U-shaped transparent hose 27,27 liang of transparent hose are set between each water-supply-pipe 23 and water inlet manifold
Hand stop valve 28 is arranged in side, and each pipeline water delivery performance is observed in realization online, and realizes on-bne repair and maintenance.
As shown in figure 3, being equipped with water conservancy diversion dust collect plant 7 in the import loudspeaker 3, the water conservancy diversion dust collect plant 7 includes water conservancy diversion
Plate 12, anode dust-collecting mechanism and cathode dust-collecting mechanism, by flow of flue gas direction, the deflector 12 be located at anode dust-collecting mechanism and
The upstream of cathode dust-collecting mechanism, anode dust-collecting mechanism include anodic porous plate 16 and cathode vibrator, cathode dust-collecting mechanism packet
Cathode frame 13, cathode rapping axis 14 and cathode rapping motor 15 are included, cathode line or cathode are equipped in the cathode frame 13
Steel wire.
Arrangement two is discharged to four row's anodic porous plates 16 and cathode line or cathode steel wire in import loudspeaker 3, and cathode is towards side
Prominent, cathode rapping motor 15 is decelerating motor, and cathode rapping axis 14 is driven to rotate, and cathode rapping axis 14 is corresponding often to arrange cathode frame
Beater is arranged in the position of frame 13, to which by beater rotation, rapping cathode frame 13, removing are adsorbed on cathode by row
Dust, anode dust-collecting mechanism include anodic porous plate 16 and cathode vibrator, are equipped between adjacent two rows of cathode frames 13
The level height of anodic porous plate 16 described in one row, 16 bottom of anodic porous plate is more than the level height of 13 bottom of cathode frame
Degree, cathode vibrator include anode electric motor of shaker 17 and anode rapping shaft 18, on anode rapping shaft 18 with often arrange anodic porous
16 corresponding position of plate is equipped with beater, and the anode rapping shaft 18 is connected with anode electric motor of shaker 17, the anode rapping electricity
Machine 17 is fixed on the lower part of import loudspeaker 3.
In cathode integrated mechanism, the upper and lower frames of cathode is connected as integral frame structure, above passes through four insulated hanging pole branch
Support, cathode rapping motor 15 are arranged on 3 top of import loudspeaker；Anodic porous plate 16 in anode dust-collecting mechanism, often row is independent, on
End suspension is fixed, and bottom end is staggered by shortening length with cathode frame 13, cathode vibrator rapping anode flow field 12 by row,
The dust that rapping is removed absorption and sticked, and dust is squeezed into electric field ash bucket.
As shown in Figure 5, Figure 6,12 thickness 2.5mm-3.5mm of anode flow field, width about 360mm, using wear-resisting Q345
Material is provided with equally distributed through-hole 20,20 opening diameter φ 85mm of through-hole, 12 section of anode flow field on anodic porous plate 16
Such as channel steel type, the left and right sides is equipped with the bevelling 19 that flue gas is imported to anodic porous plate 16, both sides bevelling 19 it is angled so as to
Flue gas water conservancy diversion.
As shown in figure 4, arrow is flow of flue gas direction, deflector 12, anode dust-collecting mechanism and cathode dust-collecting mechanism in figure
On be equipped with the flow distribution plate 21 for spreading flue gas around, to ensure that the air-flow in conventional electric field 4 is uniform.
As shown in Figure 7, Figure 8, screening electric field 5 includes negative pole part 8 and anode portion 9, and negative pole part 8 and anode portion 9 are steel wire
Net, below in order to distinguish referred to as cathode steel wire and anode steel wire, but their basic structures are consistent, with conventional electric precipitator
Anode plate it is different from flue gas parallel arrangement, the negative pole part 8 of the present apparatus and the steel wire of anode portion 9 are vertical with flue gas flow direction, cigarette
Gas needs guiding through the aperture of steel wire, and flue gas passes perpendicularly through anode steel wire, improves migration velocity, and cathode uses steel wire, flue gas
Also pass perpendicularly through cathode steel wire, this avoid rapping reentrainment of dust, dust under airflow function with anode steel wire low coverage
From contact, dust migration velocity is effectively increased.
As shown in figure 9, several corona pins 10 are arranged on cathode steel wire, corona pin 10 includes screw and nut, screw
Tip far from cathode, the tail portion of screw is fixed on by nut on cathode, cathode steel wire access high-voltage electricity, pass through screw
Tip generates corona so that the dust charged flowed vertically to, and vertically as flue gas flow direction enters anode steel wire, in coulomb
Under the action of power, inertia, it is adsorbed onto on anode steel wire and cathode steel wire, cathode steel wire also achieves integrated effect,
By rapping apparatus by dust it is blocking squeeze into downside ash bucket in, to remove chalk dust removing.
The distance of cathode steel wire and anode steel wire is generally in 400mm-500mm, cathode steel wire and anode steel wire
The each separate unit of frame be generally the width of 2000mm height × 1000, frame is square tube, and steel wire is fixed with frame, steel wire
The steel wire of net is φ 0.63mm, and steel wire space is the square hole of 8mm × 8mm, and steel wire uses stainless steel wire, and generally 304 is stainless
Steel or 316 stainless steels.
The cathode of the either each room of screening 5 each power supply zone of electric field is combined entirely through frame structure, is led to
Cross rapping apparatus entirety rapping cathode assembly；Anode steel wire is combined by frame structure, anode superstructure often arrange it is independently combinable at
One group, pass through rapping apparatus rapping anode superstructure by row.
As shown in Figure 10, entire electrical dust collector device includes import loudspeaker 3, conventional electric field 4, screening electric field 5 and outlet successively
Loudspeaker 6, are equipped with high voltage power supply device in electrical dust collector device, 7 each import loudspeaker 3 of water conservancy diversion dust collect plant be independently arranged it is a set of, often
Set four cathode hangers of setting, and it is independently-powered, and high voltage power supply is arranged at the top of the first electric field, and 4 each room of conventional electric field is set
Four cathode hangers, a mating power supply are set, eight cathode hangers, a mating power supply is arranged in 5 each room of screening electric field
Power supply；Each room is divided into two subregions by screening electric field 5, and power supply, mating two rapping apparatus, to carry are connected with conducting wire 11
The ash-removal effect of high rapping apparatus.
As shown in Figure 11, Figure 12, dust collection plate 29 is equipped in outlet loudspeaker 6, the dust collection plate 29 includes plate body 30, plate body 30
The left and right sides be equipped with the first side plate 31 towards flue gas upstream, the front end of every block of first side plate 31 is equipped with towards 30 center of plate body
Second side plate 32, there are fume inlet passage 33 between two piece of second side plate 32, both sides form frame-shaped construction, and absorption screening electric field 5 is escaped
Ultrafine dust is charged in the part of ease.
Flue-gas temperature is reduced to 83-85 DEG C or so by smoke temperature reducer；Flue gas humidity control device 2 is arranged in flue gas cool-down dress
Before postponing electric precipitator suction flange, desulfurization wastewater or wet electrical dust precipitator waste water are sprayed into flue, by spraying water flue gas
Temperature is further decreased to 80 DEG C in flue, avoids smoke temperature reducer etching problem caused by cooling；Water injection system
On-bne repair can be realized by transparent hose；Cathode charge device is arranged in 3 water conservancy diversion dust collect plant 7 of import loudspeaker, and porous plate is simultaneously
The effect for having water conservancy diversion and gathering dust, and corresponding ash removal equipment for flapping is set, while can effectively avoid because flue gas cool-down is humidified
The problem of caused dust is attached to deflector 12 and causes to block afterwards；Screening electric field 5 is arranged in electric precipitator rear end electric field, sun
Extremely steel wire, anode network are arranged vertically with flue gas, and flue gas passes perpendicularly through anode steel wire, improve migration velocity；Cathode uses
Steel wire, is arranged the point discharge needle of screw shaped on steel wire, and flue gas passes perpendicularly through cathode steel wire；Flue gas need to pass perpendicularly through
Multilayer steel wire, avoids rapping reentrainment of dust, and dust, with anode network close contact, effectively increases under airflow acting force
Dust migration velocity；Multiclass power supply integrated control system can control the different type power supply of each power supply zone simultaneously, and setting is different
Adjustment parameter, ensure efficiency of dust collection while save energy consumption；Dust collect plant is exported by the way that groove type plate is arranged, collects screening electric field
The fraction Charged of 5 escapes.
The present apparatus has the characteristics that：1) can guarantee the cooling of flue-gas temperature deep-graded (cooling of smoke temperature reducer level-one,
Flue gas humidity control device two level cools down), dust, which is modified, improves efficiency of dust collection (specific resistance reduces, adhesion increases), and dust classification is gone
Except (import loudspeaker water conservancy diversion dust collect plant level-one removes the big dust of adhesion, the most of dust of conventional electric field two level removal, screening
Electric field removes ultra-fine grain dust), the flue gas for sieving electric field passes perpendicularly through cathode steel wire and anode steel wire, avoids rapping
Reentrainment of dust effectively increases dust migration velocity；
2) flue gas is down to 80 DEG C by smoke temperature reducer and flue gas humidity control device, effectively by the SO in flue gas3Condensation
Product dew, and neutralized by dust surface alkalinty oxide, it is stripped of downstream (NH4)2SO4The reactant SO of formation3, to make fire coal
The granular material discharged important component SO of power-plant flue gas3(condensable particulate matter) and (NH4)2SO4(droplet containing soluble salt) obtains
It effectively removes, greatly improves system particles object removal efficiency, realize and provide for stablizing for coal-burning power plant particulate matter minimum discharge
Precondition.
3) by flue gas tune psychrometric means, the humidity that flue gas is adjusted is usually to increase on the basis of former smoke moisture
0.1%-0.5% sprays into desulfurization wastewater or wet electrical dust precipitator waste water before electric precipitator (after smoke temperature reducer) in flue,
For wastewater treatment capacity in 15t/h-50t/h, waste water obtains mass efficient processing；Correspondingly, due to flue gas powder after flue gas water spray damping
Dirt adhesion increases, and efficiency of dust collection effectively improves；Realize at the same adjust electric precipitator import smoke moisture and temperature with
Dust collection efficiency is improved, energy consumption is reduced.
4) import loudspeaker water conservancy diversion dust collect plant is stripped of by the way that electric field is arranged because of smoke temperature reducer and flue gas humidity control device
The higher dust of adhesion for being arranged and generating, improves dust collection efficiency；Water conservancy diversion collecting plate be arranged rapping apparatus, solve because
Deflector dust stratification and blockage problem caused by decreasing temperature and increasing humidity.
Above is only a specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, made by changes or modifications all cover the present invention the scope of the claims among.
Claims (15)
1. a kind of regulating temperature and humidity sieves electric precipitator, it is characterised in that：Including sequentially connected smoke temperature reducer (1), flue gas
Humidity control device (2) and electrical dust collector device, along flow of flue gas direction, the electrical dust collector device includes import loudspeaker (3), routine successively
Electric field (4), screening electric field (5) and outlet loudspeaker (6), the import loudspeaker (3) are interior to be equipped with water conservancy diversion dust collect plant (7).
2. a kind of regulating temperature and humidity as described in claim 1 sieves electric precipitator, it is characterised in that：Each import loudspeaker
(3) it is all provided in there are four cathode hanger, four cathode hangers connect a high voltage power supply；The conventional electric field (4) includes
At least one electric precipitation room is set in each electric precipitation room there are four cathode hanger, and four cathode hangers connect a high pressure
Power supply；The screening electric field (5) includes at least one screening electric precipitation room, and eight the moon are equipped in each screening electric precipitation room
Pole is hung, and eight cathode hangers connect a high voltage power supply.
3. a kind of regulating temperature and humidity as described in claim 1 sieves electric precipitator, it is characterised in that：Screening electric field (5) packet
Negative pole part (8) and anode portion (9) are included, the negative pole part (8) and anode portion (9) are steel wire, the negative pole part (8) and anode
Portion (9) is vertical with flue gas flow direction.
4. a kind of regulating temperature and humidity as claimed in claim 3 sieves electric precipitator, it is characterised in that：It is set on the negative pole part (8)
It includes screw and nut to have several corona pins (10), the corona pin (10), and the tip of screw is far from negative pole part, the tail portion of screw
It is fixed on negative pole part by nut.
5. a kind of regulating temperature and humidity as claimed in claim 3 sieves electric precipitator, it is characterised in that：The negative pole part (8) and sun
The spacing in pole portion (9) is 400-500mm, and steel wire net height is 2000mm, and steel wire width is 1000mm, is on steel wire
The square hole of 8mm × 8mm.
6. a kind of regulating temperature and humidity as claimed in claim 3 sieves electric precipitator, it is characterised in that：In the screening electric field (5)
The negative pole part (8) of each power supply zone by framework composition together, the anode portion (9) often arrange independence into one group.
7. a kind of regulating temperature and humidity as described in claim 1 sieves electric precipitator, it is characterised in that：The water conservancy diversion dust collect plant
(7) include deflector (12), anode dust-collecting mechanism and cathode dust-collecting mechanism, by flow of flue gas direction, deflector (12) position
In the upstream of anode dust-collecting mechanism and cathode dust-collecting mechanism.
8. a kind of regulating temperature and humidity as claimed in claim 7 sieves electric precipitator, it is characterised in that：The cathode dust-collecting mechanism packet
Cathode frame (13), cathode rapping axis (14) and cathode rapping motor (15) are included, cathode line is equipped in the cathode frame (13)
Or cathode steel wire, it often arranges cathode frame (13) top and is hung in import loudspeaker (3) by insulated hanging pole, neighbouring cathode frame
(13) bottom is fixedly connected, and position corresponding with often row cathode frame (13) is equipped with beater, institute on cathode rapping axis (14)
It states cathode rapping axis (14) with cathode rapping motor (15) to be connected, the cathode rapping motor (15) is fixed on import loudspeaker (3)
Top.
9. a kind of regulating temperature and humidity as claimed in claim 8 sieves electric precipitator, it is characterised in that：The anode dust-collecting mechanism packet
Anodic porous plate (16) and cathode vibrator are included, anodic porous described in a row is equipped between adjacent two rows of cathode frames (13)
Plate (16), the level height of anodic porous plate (16) bottom are more than the level height of cathode frame (13) bottom, and anode shakes
It includes anode electric motor of shaker (17) and anode rapping shaft (18) to beat device, on anode rapping shaft (18) with often row's anodic porous plate
(16) corresponding position is equipped with beater, and the anode rapping shaft (18) is connected with anode electric motor of shaker (17), and the anode shakes
Beat the lower part that motor (17) is fixed on import loudspeaker (3).
10. a kind of regulating temperature and humidity as claimed in claim 9 sieves electric precipitator, it is characterised in that：The anodic porous plate
(16) the left and right sides is equipped with the bevelling (19) that flue gas is imported to anodic porous plate (16), is provided on the anodic porous plate (16)
Equally distributed through-hole (20).
11. a kind of regulating temperature and humidity as described in any one of claim 7 to 10 sieves electric precipitator, it is characterised in that：It is described
The flow distribution plate (21) for spreading flue gas around is equipped on deflector (12), anode dust-collecting mechanism and cathode dust-collecting mechanism.
12. a kind of regulating temperature and humidity as described in claim 1 sieves electric precipitator, it is characterised in that：The flue gas humidity control device
(2) include the water-supply-pipe (23) being arranged in flue (22), the end of the water-supply-pipe (23) is equipped with nozzle (24), the nozzle
(24) it is just staggered, nozzle (24) sprays flow direction and flow of flue gas is reversely consistent.
13. a kind of regulating temperature and humidity as claimed in claim 12 sieves electric precipitator, it is characterised in that：The water-supply-pipe (23) is met
Wind face is equipped with abrasionproof angle steel.
14. a kind of regulating temperature and humidity as claimed in claim 12 sieves electric precipitator, it is characterised in that：The water-supply-pipe (23) with
It is connected by transparent hose (27) between water inlet manifold, the both ends of the transparent hose (27) are equipped with shut-off valve (28).
15. a kind of regulating temperature and humidity as described in claim 1 sieves electric precipitator, it is characterised in that：In the outlet loudspeaker (6)
Equipped with dust collection plate (29), the dust collection plate (29) includes plate body (30), and the left and right sides of plate body (30) is equipped with towards flue gas upstream
The first side plate (31), the front end of every piece of first side plate (31) is equipped with towards plate body (30) the second side plate of center (32), two pieces the
There are fume inlet passage (33) between two side plates (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243631.XA CN108722668A (en) | 2017-04-14 | 2017-04-14 | A kind of regulating temperature and humidity screening electric precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243631.XA CN108722668A (en) | 2017-04-14 | 2017-04-14 | A kind of regulating temperature and humidity screening electric precipitator |
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| Publication Number | Publication Date |
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ID=63924444
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| CN201710243631.XA Pending CN108722668A (en) | 2017-04-14 | 2017-04-14 | A kind of regulating temperature and humidity screening electric precipitator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2894850Y (en) * | 2006-03-03 | 2007-05-02 | 张介轩 | Coal-fired power generation boiler electrostatic precipitation apparatus |
| CN201644221U (en) * | 2010-05-17 | 2010-11-24 | 山东电力研究院 | Dry-wet mixed electrical dust remover |
| CN105080311A (en) * | 2015-07-28 | 2015-11-25 | 浙江天蓝环保技术股份有限公司 | Super-clean exhausting integral tower and treating technology for coal-fired boiler exhaust gas |
| CN106540805A (en) * | 2016-12-29 | 2017-03-29 | 天津钢铁集团有限公司 | A kind of electric dust removing system improved structure |
| CN206778702U (en) * | 2017-04-14 | 2017-12-22 | 浙江菲达环保科技股份有限公司 | A kind of regulating temperature and humidity sieves electric cleaner |
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2017
- 2017-04-14 CN CN201710243631.XA patent/CN108722668A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2894850Y (en) * | 2006-03-03 | 2007-05-02 | 张介轩 | Coal-fired power generation boiler electrostatic precipitation apparatus |
| CN201644221U (en) * | 2010-05-17 | 2010-11-24 | 山东电力研究院 | Dry-wet mixed electrical dust remover |
| CN105080311A (en) * | 2015-07-28 | 2015-11-25 | 浙江天蓝环保技术股份有限公司 | Super-clean exhausting integral tower and treating technology for coal-fired boiler exhaust gas |
| CN106540805A (en) * | 2016-12-29 | 2017-03-29 | 天津钢铁集团有限公司 | A kind of electric dust removing system improved structure |
| CN206778702U (en) * | 2017-04-14 | 2017-12-22 | 浙江菲达环保科技股份有限公司 | A kind of regulating temperature and humidity sieves electric cleaner |
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Application publication date: 20181102 |