CN105214839A - A kind of wet type demister - Google Patents
A kind of wet type demister Download PDFInfo
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- CN105214839A CN105214839A CN201510691430.7A CN201510691430A CN105214839A CN 105214839 A CN105214839 A CN 105214839A CN 201510691430 A CN201510691430 A CN 201510691430A CN 105214839 A CN105214839 A CN 105214839A
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- wet type
- demisting unit
- smoke box
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Abstract
The invention discloses a kind of wet type demister, comprise air inlet smoke box, one or more wet type demisting unit, smoke box of giving vent to anger; Described air inlet smoke box, wet type demisting unit, smoke box of giving vent to anger are linked in sequence successively; Porous airflow uniform distribution plate is established in air inlet smoke box; Wet type demisting unit is along the modular layout of airintake direction; Described wet type demisting unit comprises anode system, bottom irrigation water system and sealing gland facility; Anode system comprises: drive sprocket, driven sprocket, chain, dam positive plate; Bottom irrigation water system comprises: bottom tank, internal pipeline, special nozzle, outside supporting water system.Improve conventional wet electric cleaner, wet type electrostatic precipitator, helpless to fine mist, and floor space is large, water consumption is large, high cost problem, reduce 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, be specifically related to a kind of wet type demister, belong to technical field of environment protection equipment.
Background technology
Demister is the parts that wet flue gas desulfurization absorption tower must be joined.Flue gas, after the demister process on absorption tower, also contains a certain amount of droplet.Droplet comprises the sulfuric acid mist that water smoke, the SO3 be not removed and water generate, and these droplets wrap up in the particle such as gypsum and flue dust, also dissolve multiple salt ion.The particle such as gypsum and flue dust can cause fouling and the blocking of the equipment such as follow-up GGH, and acid mist and dissolved salt can corrode, as directly discharge can cause " gypsum rain " and " acid rain " to pollute by acceleration equipment.
Along with environment protection emission requires to enter " minimum discharge epoch ", the demister of existing routine can not ensure that desulfuration absorbing tower outlet reaches the requirement of minimum discharge standard.The numerous and confused Improvement demister of current researchers, as: improve baffle plate type, improve screen type, combined type etc.; Also there is researcher to be serially connected in after desulfuration absorbing tower by wet-esp (mist) device, strengthen clearance.
Conventional demister outlet does not reach minimum discharge requirement; Part improve after demister except fog effect is having certain lifting, but deposit many design problems, the problems such as comparatively large in resistance, high, the easy blocking of energy consumption, structural strength are low.Conventional wet electric precipitation (mist) device, dedusting (mist) effect is better, but helpless to fine mist, and floor space is large, water consumption is large, waste water is many, cost is high.
Summary of the invention
Object: in order to overcome the deficiencies in the prior art, the invention provides a kind of wet type demister.Improve conventional wet electric cleaner, wet type electrostatic precipitator, helpless to fine mist, and floor space is large, water consumption is large, high cost problem, reduce pollutant emission, using water wisely, makes soot emissions reach the requirement of ultra-clean discharge.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of wet type demister, is characterized in that: comprise air inlet smoke box, one or more wet type demisting unit, smoke box of giving vent to anger; Described air inlet smoke box, wet type demisting unit, smoke box of giving vent to anger are linked in sequence successively;
Porous airflow uniform distribution plate is established in air inlet smoke box; Wet type demisting unit is along the modular layout of airintake direction; Described wet type demisting unit comprises anode system, bottom irrigation water system;
Anode system comprises: drive sprocket, driven sprocket, chain, dam positive plate;
Bottom irrigation water system comprises: bottom tank, internal pipeline, special nozzle, outside supporting water system.
Described wet type demister, is characterized in that: described wet type demisting unit also comprises cathod system, and described cathod system comprises: cathode line cleaning hose group, cathodic discharge line group, cathode insulation facility; Described cathodic discharge line group is the cathodic discharge line that single or multiple lift be arranged in parallel.In the present invention, wet type demisting unit also can not arrange cathod system, and the positive plate that now dams uses as intercepter plate.
Described wet type demister, is characterized in that: arrange single stage wet demisting unit in described wet type demister, or is arranged in series multistage wet type demisting unit.
Described wet type demister, is characterized in that: described in the positive plate that dams be the positive plate that dams of single or multiple lift coaxial rotating.
Described wet type demister, is characterized in that: described in positive plate surface of damming be covered with hole, can rotate under the drive of chain, will retain with (negative electrical charge) droplet and flue dust, and bring in the tank of bottom.
Preferably, described wet type demister, is characterized in that: described wet type demisting unit also comprises sealing gland facility, and described sealing gland facility comprises top sealing gland facility and limit wall sealing gland facility.
Beneficial effect: a kind of wet type demister provided by the invention, 1, follow-up flue gas minimum discharge process for wet desulphurization, remove fine mist, the smoke content < 5mg/Nm after process
3, remove most of sulfuric acid mist simultaneously, reduce the risk of equipment corrosion and blocking, extension device service life.After treatment, dust concentration reaches the requirement of minimum discharge to flue gas; 2, compared with existing wet-esp (mist) device, volume is little, and occupation of land space is little, and water consumption is low, and waste water is few, and cost is economized.
Have the following advantages:
1, the present invention adopts the pattern of " cathodic discharge line+rotations dam positive plate ", makes demister flue gas flow direction vertical with positive plate, and dependence " pneumatic convey+electrostatic attraction+rotary anode plate retains " acting in conjunction, makes gas cleaning; Its principle is different from existing wet-esp (mist) device, and device structure is also different; Equipment volume is compact, and more conventional electrostatic precipitator significantly reduces.
2, every grade of wet type demisting unit, cathode line can be individual layer also can be that multilayer parallel arranges composition cathode array, also or not establishes cathod system.Along airintake direction, cathodic region is arranged in before anode region, and cathodic region is furnished with cleaning hose group.Cathodic region powers and can divide into groups to carry out with rinsing, and when certain grouping is rinsed, only cuts off this grouping and powers, other normal power supplies that divide into groups.
3, anode is made up of the positive plate that dams of the upper and lower coaxial rotating of single or multiple lift.Positive plate surface is covered with aperture, and has particular configuration, rotates, electronegative droplet and flue dust are retained under chain and sprocket wheel drive, and along with the rotation of sprocket wheel, brings in the tank of bottom.Be provided with special flushing water system in tank, positive plate is cleaned.Rotation retains positive plate lower submerged in water, has both facilitated pole plate to rinse, and also makes bottom water seal air tight simultaneously.
4, bottom irrigation water system matches with outside water treatment system, and clean also reuse, the both using water wisely of the water after process, makes again water system water stabilization simultaneously, suppress fouling and corrosion.
5, as required, single-stage multi-layer, multistage individual layer, multistage multilayer wet type electricity demisting unit can be set flexibly, guarantee that outlet flue dust reaches minimum discharge requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present 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, give vent to anger smoke box E;
Cathode line cleaning hose group 1, cathodic discharge line group 2, cathode insulation facility 3, drive sprocket 4, driven sprocket 5, chain 6, the positive plate 7 that dams, top sealing gland facility 8, limit wall sealing gland facility 9, bottom tank 10.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
As shown in Figure 1, a kind of wet type demister, comprises housing, air inlet smoke box A, cathod system B, anode system C, bottom irrigation water system D, gives vent to anger smoke box E;
Porous airflow uniform distribution plate is established in air inlet smoke box; Device interior is along the modular layout of airintake direction, and wherein cathod system, anode system, bottom irrigation water system form wet type demisting unit; Wet type demister can arrange single stage wet demisting unit, also can be arranged in series multistage wet type demisting unit;
As shown in Figure 2, wet type demisting unit, its cathod system comprises: cathode line cleaning hose group 1, cathodic discharge line group 2, cathode insulation facility 3; Anode system (that is: rotate dam positive plate) comprising: drive sprocket 4, driven sprocket 5, chain 6, dam positive plate 7; Bottom irrigation water system comprises: the (not shown) such as bottom tank 10, internal pipeline, special nozzle, outside supporting water system; Sealing gland facility: top sealing gland facility 8, limit wall sealing gland facility 9.The rotation positive plate that dams can be single or multiple lift coaxial rotating, is three layers in the present embodiment.
The course of work of the present invention is as follows:
A () flue gas enters this wet type demister after, uniform by the porous airflow uniform distribution plate in air inlet smoke box, after cathodic discharge, electric charge on droplet and flue dust band, and " hit " to the positive plate that dams along with the flowing of flue gas;
B () contacts with positive plate after, flue gas is through the aperture on positive plate, and charged droplet and flue dust, due to charge effect, the positive plate effect of damming and suction-operated, meeting " sticky glutinous " on positive plate, and completes discharge process and conducting process gradually;
The driving of (c) sprocket wheel and chain, leave flue gas flow channel with positive plate rotation and enter bottom tank, through the flushing of water, the acid mortar that surface is sticky is cleaned, and returns flue gas flow channel, continues to play a role;
D the pollutant in () flushing water, is processed by external water treatment system.The clean also reuse of water after process.
Wet type demister of the present invention, entry condition: flue dust+gypsum content≤30mg/Nm
3.Operating efficiency: 1 grade of 3 layers of efficiency of dust collection >=85%, acid mist clearance >=70%.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a wet type demister, is characterized in that: comprise air inlet smoke box, one or more wet type demisting unit, smoke box of giving vent to anger; Described air inlet smoke box, wet type demisting unit, smoke box of giving vent to anger are linked in sequence successively;
Porous airflow uniform distribution plate is established in air inlet smoke box; Wet type demisting unit is along the modular layout of airintake direction; Described wet type demisting unit comprises anode system, bottom irrigation water system;
Anode system comprises: drive sprocket, driven sprocket, chain, dam positive plate;
Bottom irrigation water system comprises: bottom tank, internal pipeline, special nozzle, outside supporting water system.
2. wet type demister according to claim 1, is characterized in that: described wet type demisting unit also comprises cathod system, and described cathod system comprises: cathode line cleaning hose group, cathodic discharge line group, cathode insulation facility; Described cathodic discharge line group is the cathodic discharge line that single or multiple lift be arranged in parallel.
3. wet type demister according to claim 1, is characterized in that: arrange single stage wet demisting unit in described wet type demister, or is arranged in series multistage wet type demisting unit.
4. wet type demister according to claim 1, is characterized in that: described in the positive plate that dams be the positive plate that dams of single or multiple lift coaxial rotating.
5. wet type demister according to claim 4, is characterized in that: described in positive plate surface of damming be covered with hole, can rotate under the drive of chain, droplet and flue dust are retained, and bring in the tank of bottom.
6. wet type demister according to claim 1, is characterized in that: described wet type demisting unit also comprises sealing gland facility, and described sealing gland facility comprises top sealing gland facility and limit wall sealing gland facility.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510691430.7A CN105214839B (en) | 2015-10-21 | 2015-10-21 | A kind of wet type demister |
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| CN201510691430.7A CN105214839B (en) | 2015-10-21 | 2015-10-21 | A kind of wet type demister |
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| CN105214839A true CN105214839A (en) | 2016-01-06 |
| CN105214839B CN105214839B (en) | 2017-06-20 |
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Cited By (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 |
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| 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 |
| 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 |
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| 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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Patent Citations (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 |
Cited By (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 |
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| CN105214839B (en) | 2017-06-20 |
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