CN105214839B - A kind of wet type demister - Google Patents
A kind of wet type demister Download PDFInfo
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- CN105214839B CN105214839B CN201510691430.7A CN201510691430A CN105214839B CN 105214839 B CN105214839 B CN 105214839B CN 201510691430 A CN201510691430 A CN 201510691430A CN 105214839 B CN105214839 B CN 105214839B
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- wet type
- smoke box
- demisting unit
- air inlet
- wet
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Abstract
The invention discloses a kind of wet type demister, including air inlet smoke box, one or more wet type demisting units, outlet smoke box；The air inlet smoke box, wet type demisting unit, outlet smoke box are linked in sequence successively；Porous airflow uniform distribution plate is set in air inlet smoke box；Wet type demisting unit is along the modular arrangement of airintake direction；The wet type demisting unit includes anode system, bottom irrigation water system and sealing gland facility；Anode system includes：Drive sprocket, driven sprocket, chain, dam positive plate；Bottom irrigation water system includes：Bottom tank, internal pipeline, special nozzle, outside supporting water system.Conventional wet electric cleaner, wet type electrostatic precipitator are improved, it is helpless to fine mist, and floor space is big, water consume is big, high cost problem, reduces pollutant emission, using water wisely makes soot emissions reach the requirement of ultra-clean discharge.
Description
Technical field
The present invention relates to a kind of smoke eliminator, and in particular to a kind of wet type demister, belong to environmental protection equipment technology neck
Domain.
Background technology
Demister is the part that wet flue gas desulfurization absorption tower must match somebody with somebody.Flue gas is by after the demister treatment on absorption tower, going back
Contain a certain amount of droplet.Sulfuric acid mist of the droplet including water smoke, the SO3 not being removed and water generation, these droplets are wrapped up in
The particulate matter such as gypsum and flue dust, also dissolves various salt ions.The particulate matter such as gypsum and flue dust can cause the knot of the equipment such as follow-up GGH
Dirt and blocking, acid mist and dissolved salt meeting acceleration equipment corrosion, such as directly discharging can cause " gypsum rain " and " acid rain " pollution.
As environment protection emission requirement enters " minimum discharge epoch ", existing conventional demister is it cannot be guaranteed that desulfurization is inhaled
Receive the requirement that tower outlet reaches minimum discharge standard.The numerous and confused Improvement demister of current researchers, such as：Improve deflection plate
Formula, improvement screen type, combined type etc.；Also there is researcher by wet-esp（Mist）Device is serially connected in behind desulfuration absorbing tower,
Enhancing clearance.
Conventional demister outlet does not reach minimum discharge requirement；Demister after being partially improved has one on except fog effect
Fixed lifting, but deposit many design problems, such as resistance are larger, high energy consumption, easily block, the low problem of structural strength.Conventional wet electricity
Dedusting（Mist）Device, dedusting（Mist）Effect is preferable, but helpless to fine mist, and floor space is big, water consume is big, waste water is more,
Cost is high.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of wet type demister.Improve conventional wet
Formula electric cleaner, wet type electrostatic precipitator, it is helpless to fine mist, and floor space is big, water consume is big, high cost problem,
Pollutant emission is reduced, using water wisely makes soot emissions reach the requirement of ultra-clean discharge.
Technical scheme：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of wet type demister, it is characterised in that：Including air inlet smoke box, one or more wet type demisting units, outlet cigarette
Case；The air inlet smoke box, wet type demisting unit, outlet smoke box are linked in sequence successively；
Porous airflow uniform distribution plate is set in air inlet smoke box；Wet type demisting unit is along the modular arrangement of airintake direction；The wet type
Demisting unit includes anode system, bottom irrigation water system；
Anode system includes：Drive sprocket, driven sprocket, chain, dam positive plate；
Bottom irrigation water system includes：Bottom tank, internal pipeline, special nozzle, outside supporting water system.
Described wet type demister, it is characterised in that：The wet type demisting unit also includes cathod system, the negative electrode system
System includes：Cathode line flush pipe group, cathodic discharge line group, cathode insulation facility；The cathodic discharge line group is single or multiple lift
The cathodic discharge line be arrangeding in parallel.In the present invention, wet type demisting unit can also be not provided with cathod system, and now dam positive plate
Used as intercepter plate.
Described wet type demister, it is characterised in that：Single stage wet demisting unit is set in the wet type demister, or
It is arranged in series multistage wet type demisting unit.
Described wet type demister, it is characterised in that：It is described to dam positive plate damming for single or multiple lift coaxial rotating
Positive plate.
Described wet type demister, it is characterised in that：The anode plate surface of damming is covered with hole, can be under the drive of chain
Rotation, by band（Negative electrical charge）Droplet and flue dust are retained, and are brought into the tank of bottom.
Preferably, described wet type demister, it is characterised in that：The wet type demisting unit also sets including sealing gland
Apply, the sealing gland facility includes top sealing gland facility and side wall sealing gland facility.
Beneficial effect：A kind of wet type demister that the present invention is provided, 1, the follow-up flue gas minimum discharge for wet desulphurization
Treatment, removes fine mist, the smoke content ＜ 5mg/Nm after treatment3, while removing most of sulfuric acid mist, reduce equipment
Corrosion and the risk for blocking, extension device service life.After treatment, dust concentration has reached the requirement of minimum discharge to flue gas；
2 and existing wet-esp（Mist）Device is compared, and small volume, floor space is small, and water consume is low, and waste water is few, and cost is saved.
With advantages below：
1st, the present invention makes demister flue gas flow direction and anode using the pattern of " cathodic discharge line+rotation dam positive plate "
Plate is vertical, by " air-flow conveying+electrostatic attraction+rotary anode plate is retained " collective effect, makes gas cleaning；Its principle with it is existing
Wet-esp（Mist）Device is different, and device structure is also different；Equipment volume is compact, and more conventional electrostatic precipitator significantly subtracts
It is small.
2nd, every grade of wet type demisting unit, cathode line can be that individual layer can also be that multilayer parallel sets composition cathode array,
Also cathod system or is not set.Along airintake direction, cathodic region is arranged in before anode region, and cathodic region is disposed with flush pipe group.
Cathodic region powers to be grouped with flushing and carries out, and when certain packet is rinsed, only cuts off the packet and powers, other packet normal power supplies.
3rd, anode is made up of the positive plate that dams of the upper and lower coaxial rotating of single or multiple lift.Anode plate surface is covered with aperture, and
With particular configuration, rotated in the case where chain and sprocket wheel drive, negatively charged droplet and flue dust are retained, and with the rotation of sprocket wheel
Turn, bring into the tank of bottom.Special flushing water system is provided with tank, positive plate is cleaned.Rotation retention positive plate bottom
It is submerged in water, both facilitated pole plate to rinse, while also making bottom water seal air tight.
4th, bottom irrigation water system is engaged with outside water treatment system, the clean simultaneously reuse of the water after treatment, both economizes on
Water, while making water system water stabilization again, suppresses fouling and corrosion.
5th, as needed, single-stage multi-layer, multistage individual layer, multistage multilayer wet type electricity demisting unit can be flexibly set, it is ensured that go out
Mouth flue dust reaches minimum discharge requirement.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the schematic diagram of wet type demisting unit in the present invention；
In figure：Air inlet smoke box A, cathod system B, anode system C, bottom irrigation water system D, outlet smoke box E；
Cathode line flush pipe group 1, cathodic discharge line group 2, cathode insulation facility 3, drive sprocket 4, driven sprocket 5, chain
6th, dam positive plate 7, top sealing gland facility 8, side wall sealing gland facility 9, bottom tank 10.
Specific embodiment
The present invention is further described with reference to specific embodiment.
As shown in figure 1, a kind of wet type demister, including housing, air inlet smoke box A, cathod system B, anode system C, bottom
Rinse water system D, outlet smoke box E；
Porous airflow uniform distribution plate is set in air inlet smoke box；Device interior along the modular arrangement of airintake direction, wherein cathod system,
Anode system, bottom irrigation water system composition wet type demisting unit；The settable single stage wet demisting unit of wet type demister, also may be used
It is arranged in series multistage wet type demisting unit；
As shown in Fig. 2 wet type demisting unit, its cathod system includes：Cathode line flush pipe group 1, cathodic discharge line group 2,
Cathode insulation facility 3；Anode system（I.e.：Rotate the positive plate that dams）Including：Drive sprocket 4, driven sprocket 5, chain 6, dam
Positive plate 7；Bottom irrigation water system includes：Bottom tank 10, internal pipeline, special nozzle, outside supporting water system etc.（In figure
Do not show）；Sealing gland facility：Top sealing gland facility 8, side wall sealing gland facility 9.It can be that single or multiple lift is same to rotate the positive plate that dams
Axle rotates, and is three layers in the present embodiment.
The course of work of the invention is as follows：
（a）After flue gas enters this wet type demister, by air inlet smoke box in porous airflow uniform distribution plate it is uniform, through cathodic discharge
Afterwards, electric charge on droplet and flue dust band, and as the flowing " hitting " of flue gas is to the positive plate that dams；
（b）After being contacted with positive plate, flue gas through the aperture on positive plate, and powered droplet and flue dust, due to electric charge
Effect, the positive plate effect of damming and suction-operated, meeting " viscous glutinous " gradually complete discharge process and conductive mistake on positive plate
Journey；
（c）The driving of sprocket wheel and chain, is rotated away from flue gas flow channel into bottom tank, through rushing for water with positive plate
Wash, the acid mortar that surface is glued is cleaned, and return to flue gas flow channel, continue to play a role；
（d）Pollutant in flushing water, is processed by external water treatment system.The clean simultaneously reuse of water after treatment.
Wet type demister of the present invention, entry condition：Flue dust+gypsum content≤30mg/Nm3.Operating efficiency：1 grade of 3 layers of dedusting
Efficiency >=85%, acid mist clearance >=70%.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of wet type demister, it is characterised in that：Including air inlet smoke box, one or more wet type demisting units, outlet smoke box；
The air inlet smoke box, wet type demisting unit, outlet smoke box are linked in sequence successively；
Porous airflow uniform distribution plate is set in air inlet smoke box；Wet type demisting unit is along the modular arrangement of airintake direction；The wet type demisting
Unit includes anode system, bottom irrigation water system；
Anode system includes：Drive sprocket, driven sprocket, chain, dam positive plate；
Bottom irrigation water system includes：Bottom tank, internal pipeline, special nozzle, outside supporting water system；
The wet type demisting unit also includes cathod system, and the cathod system includes：Cathode line flush pipe group, cathodic discharge line
Group, cathode insulation facility；The cathodic discharge line that the cathodic discharge line group be arranged in parallel for single or multiple lift；
The positive plate that dams that positive plate is multilayer coaxial rotating that dams；
The anode plate surface of damming is covered with hole, can be rotated under the drive of chain, droplet and flue dust is retained, and bring bottom into
In tank.
2. wet type demister according to claim 1, it is characterised in that：Single stage wet is set in the wet type demister to remove
Mist unit, or it is arranged in series multistage wet type demisting unit.
3. wet type demister according to claim 1, it is characterised in that：The wet type demisting unit also sets including sealing gland
Apply, the sealing gland facility includes top sealing gland facility and side wall sealing gland facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691430.7A CN105214839B (en) | 2015-10-21 | 2015-10-21 | A kind of wet type demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691430.7A CN105214839B (en) | 2015-10-21 | 2015-10-21 | A kind of wet type demister |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105214839A CN105214839A (en) | 2016-01-06 |
| CN105214839B true CN105214839B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510691430.7A Active CN105214839B (en) | 2015-10-21 | 2015-10-21 | A kind of wet type demister |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140480A (en) * | 2016-08-30 | 2016-11-23 | 艾尼科环保技术(安徽)有限公司 | A kind of wet type flexibility Mobile pole plate electrostatic precipitator of band rotating brush |
| CN106423563A (en) * | 2016-08-30 | 2017-02-22 | 艾尼科环保技术(安徽)有限公司 | Wet flexible movable polar plate electrostatic precipitator with polar plate spraying devices |
| CN106423557A (en) * | 2016-08-30 | 2017-02-22 | 艾尼科环保技术(安徽)有限公司 | Novel dry and wet compound type electrostatic precipitator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3581468A (en) * | 1969-04-09 | 1971-06-01 | Gourdine Systems Inc | Turbulence inducing electrogasdynamic precipitator |
| CN2227528Y (en) * | 1995-10-11 | 1996-05-22 | 张介轩 | Mobil dust-collecting polar type high voltage electrostatic duster |
| CN102327813A (en) * | 2010-07-12 | 2012-01-25 | 江苏阜升环保集团有限公司 | Multi-layer rotating curtain type high-voltage electrostatic wet process dust collection device |
| CN201930847U (en) * | 2011-02-17 | 2011-08-17 | 杭州天明环保工程有限公司 | Semi-dry method electrostatic precipitator |
| CN202343325U (en) * | 2011-11-24 | 2012-07-25 | 杭州天明环保工程有限公司 | Microplate electrostatic dust collector |
| CN103447151A (en) * | 2013-08-29 | 2013-12-18 | 南京龙源环保有限公司 | Compound type electric demister as well as process and use thereof |
| CN104259004A (en) * | 2014-07-31 | 2015-01-07 | 中国重型机械研究院股份公司 | Labyrinth type flexible rotating plate dust collection device |
| CN205109867U (en) * | 2015-10-21 | 2016-03-30 | 国电南京自动化股份有限公司 | Wet -type defroster |
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2015
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