CN105561726A - Effect improving type wet type electrostatic dust removal and mist removal device - Google Patents
Effect improving type wet type electrostatic dust removal and mist removal device Download PDFInfo
- Publication number
- CN105561726A CN105561726A CN201610077731.5A CN201610077731A CN105561726A CN 105561726 A CN105561726 A CN 105561726A CN 201610077731 A CN201610077731 A CN 201610077731A CN 105561726 A CN105561726 A CN 105561726A
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- China
- Prior art keywords
- tower body
- type wet
- flue gas
- acting type
- dedusting demister
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Treating Waste Gases (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention provides an effect improving type wet type electrostatic dust removal and mist removal device which comprises a middle separation type tower body. The tower body is sequentially provided with a flue gas inlet, a gas homogenizing system, a tempering system, a back wash system, a high voltage electric field region, a flue gas outlet and a liquid drainage pipe from top to bottom. The high voltage electric field region is produced when an anode system and a cathode system are powered on. The tower body comprises a top tower body and a bottom tower body. The high voltage electric field region is distributed at the separation segment between the top tower body and the bottom tower body. The effect improving type wet type electrostatic dust removal and mist removal device further comprises an adjustable gas-liquid separation system which is arranged in the flue gas outlet. According to the effect improving type wet type electrostatic dust removal and mist removal device, due to the fact that the adjustable gas-liquid separation system is arranged in the flue gas outlet, the flue gas is subjected to sufficient gas-liquid separation treatment before being exhausted, water containing inorganic salt, heavy metal, dust and other PM2.5 matter is prevented from being brought by flue gas into a chimney, and therefore the flue gas is further purified.
Description
Technical field
The present invention relates to technical field of environment protection equipment, particularly relate to one and carry acting type wet static dedusting demister.
Background technology
In recent years, China central and east continues to meet with haze, the PM in the formation of haze and air
2.5content is inseparable, and domestic and international result of study shows, coal-burning power plant's wet desulfurization system does not almost remove PM
2.5the ability of particle, to mercury and SO
3removing of aerosol etc. is also very limited, causes flue dust often to occur the phenomenon such as blue smoke, gypsum rain, serious environment pollution, is detrimental to health.
State Council's " national environmental protection " 12 " planning " requirement in 2011: carry out ozone, fine particulates (PM in regions such as the Beijing-Tianjin wing, the Yangtze River Delta and Pearl River Deltas
2.5) etc. pollutant monitoring.On February 29th, 2012, State Council holds standing meeting, requires that " ambient air quality " of issuing new revision is by PM
2.5include regular air quality evaluation in.Along with country is to the raising of Air Pollutant Emission control overflow, new fossil-fuel power plant atmospheric pollutant emission standard (GB13223-2011) was formally implemented on January 1st, 2012.New emission standard requires all to be greatly improved to flue dust, sulfur dioxide, nitrogen oxidation emission control.In order to meet new discharge standard and solve current power plant ubiquity gypsum rain problem, process PM in the urgent need to system supporting with it and equipment
2.5, the problem such as blue smoke and gypsum rain.Enter 2014, " minimum discharge " proposes successively in various places, and within 2014, advised by National Development and Reform Committee, Chinese Ministry of Environmental Protection, National Energy Board's dispatch " No. 2093 ", the index of fire coal boiler fume minimum discharge is SO
2≤ 35mg/Nm
3, NOx≤50mg/Nm
3, flue dust≤10mg/Nm
3.For reaching minimum discharge index, wet static dedusting demister to be increased after wet desulphurization, for shortening flow process, the form that wet static dedusting demister is given vent to anger under can adopting upper air, but the water droplet flowed downward that this structure can make dirty flue gas carry pole plate polar curve secretly collects.Containing PM such as inorganic salts, heavy metal, dusts in these water droplets
2.5material, the flue dust index of fume emission can be affected, the white mist of the plume of discharge can be made simultaneously to thicken.
Summary of the invention
The invention reside in overcome prior art shortcoming in deficiency, provide that one can realize desulfurization simultaneously, degree of depth dedusting, the degree of depth remove flue gas moisture multiple action and structure simply carries acting type wet static dedusting demister.
In order to achieve the above object, the present invention is by the following technical solutions: one carries acting type wet static dedusting demister, comprise middle part separate type tower body, this tower body is provided with smoke inlet, all gas system, tempering system, backwashing system, high-tension electricity place, exhanst gas outlet and discharging tube from top to bottom successively; Described high-tension electricity place is energized by anode system and cathod system and produces; Described tower body comprises top tower body and bottom tower body, and described high voltage electric field distinguishes the segregation section between being distributed at the bottom of top tower body and bottom column; Described acting type wet static dedusting demister of carrying also comprises an adjustable gas liquid separation system; Described adjustable gas liquid separation system is located in described exhanst gas outlet.
Further, described adjustable gas liquid separation system is by a top board and mutual compact siro spinning technology and the successively semi-surrounding frame structure with two opening surfaces that formed of the vertical three pieces of baffle plates that dewater being around in top board periphery, it is fixed at the bottom of the bottom Ta Bi of tower body and tower, and one of them opening surface of this frame structure is just to exhanst gas outlet.Adjustable gas liquid separation system is surrounded on exhanst gas outlet, thus first through arbitrary baffle plate that dewaters of adjustable gas liquid separation system, thus must ensure flue gas through gas-liquid separation process before discharging, reduction flue gas water content before flue gas is discharged from exhanst gas outlet.
Further, described in, the baffle plate that dewaters comprises skeleton and tilts to be fixed on the block water plate that the multi-disc on skeleton is parallel to each other, and described block water plate tilt adjustable.Multi-disc block water plate is fixed by skeleton, form the water-retaining structure that angle of inclination is consistent, be parallel to each other, in the wet static dedusting demister of giving vent to anger under upper air, the droplet that part pole plate polar curve down flows can be taken away by flue gas, at smoke outlet, the droplet be mingled with in flue gas and block water plate collide mutually, large drop is become to stay on block water plate by coalescence effect coalescence, and along block water plate from wet method electrostatic collector demister bottom discharging tube discharge, and the flue gas of clean dried is discharged from exhanst gas outlet.The angle of inclination of described block water plate adjusts by connector (as bolt), thus fly according to the resistance of waste gas pollution control and treatment system, index request and exhanst gas outlet flue gas the angle of inclination that the water yield adjusts block water plate flexibly, ensure better gas-liquid separation effect.
Further, described block water plate and horizontal plane angle are 50 ° ~ 70 °.Usually within the scope of this, adjust the angle of inclination of block water plate, the angle of inclination within the scope of this can increase the probability that droplet in flue gas and block water plate collide, thus ensures gas-liquid separation effect.
Preferably, described block water plate and horizontal plane angle are 60 °.The gas-liquid separation effect at this angle of inclination is best.
Further, described anode system comprises polylith positive plate.
Further, described positive plate is made up of electroconductive frp.
Further, described cathod system comprises multiple insulator chamber and cathode line.
Further, described tempering system comprises modified spraying layer, and this modified spraying layer is provided with multiple atomizer.This tempering system forms atomised spray with adsorption of dust by modified spraying layer, reduces the ratio resistance of exhaust gas dust.
Further, described backwashing system comprises at least one deck atomized water spraying layer, and described atomized water spraying layer is provided with multiple atomizer.Atomized water to be sprayed onto on the positive plate of anode system by atomized water spraying layer and to form continuous print moisture film by this backwashing system, and the grit of catching washes away to bottom of device, in the pond that discharging tube drains into below device by flowing moisture film.
Compared to prior art, one of the present invention carries acting type wet static dedusting demister, by arranging adjustable gas liquid separation system in exhanst gas outlet, making flue gas before discharge through the more abundant process of gas-liquid separation thoroughly, avoiding containing PM such as inorganic salts, heavy metal, dusts
2.5the moisture of material is brought in chimney by flue gas, thus flue gas is purified further; Also the visible smog length of chimney and thickness is made to reduce.In addition, described adjustable gas liquid separation system can install additional easily on original wet static dedusting demister, is convenient to enterprises and institutions and transforms on existing apparatus, saves cost.
In order to understand better and implement, describe the present invention in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation carrying acting type wet static dedusting demister of the present invention
Fig. 2 is the mounting structure schematic diagram of adjustable gas liquid separation system of the present invention
Fig. 3 is that the A of Fig. 2 is to schematic diagram
Fig. 4 is the structural representation of adjustable gas liquid separation system of the present invention
Fig. 5 is the structural representation of the baffle plate that dewaters of the present invention
Fig. 6 is that the B of Fig. 5 is to schematic diagram
Detailed description of the invention
Refer to Fig. 1, it is the structural representation carrying acting type wet static dedusting demister of the present invention.One of the present invention carries acting type wet static dedusting demister, separate type tower body in the middle part of comprising; This tower body comprises top tower body 91 and bottom tower body 92, and is separated interval, one end therebetween.This tower body inside is provided with smoke inlet 10, all gas system 20, tempering system 30, backwashing system 40, high-tension electricity place 50, exhanst gas outlet 60 and discharging tube 70 from top to bottom successively; Described exhanst gas outlet 60 is opened in the side of bottom tower body 92, and described discharging tube 70 is located at the bottom of bottom tower body 92.An adjustable gas liquid separation system 80 is provided with in described exhanst gas outlet 60.Flue gas enters described tower body from smoke inlet 10, and successively after all gas system 20, tempering system 30, backwashing system 40, high-tension electricity place 50 dedusting demist, by discharging from exhanst gas outlet 60 after adjustable gas liquid separation system 80 gas-liquid separation, the waste liquid produced in wet method electrostatic collector demist process is discharged from discharging tube 70.
Particularly, described high-tension electricity place 50 leads to high voltage direct current by anode system 51 and cathod system 52 and produces, and this high voltage electric field distinguishes the segregation section between being distributed at the bottom of top tower body and bottom column.Described anode system 51 is formed by polylith positive plate, and preferably, described positive plate is made up of electroconductive frp.Described cathod system 52 comprises many cathode line 521 and multiple insulator chamber 522.Described tempering system 30 comprises modified spraying layer, and this modified spraying layer is provided with multiple atomizer.Described backwashing system 40 comprises at least one deck atomized water spraying layer, and described atomized water spraying layer is provided with multiple atomizer.
Please refer to Fig. 2 ~ 6, wherein, Fig. 2 is the mounting structure schematic diagram of adjustable gas liquid separation system of the present invention; Fig. 3 is that the A of Fig. 2 is to schematic diagram; Fig. 4 is the structural representation of adjustable gas liquid separation system of the present invention; Fig. 5 is the structural representation of the baffle plate that dewaters of the present invention; Fig. 6 is that the B of Fig. 5 is to schematic diagram.Described adjustable gas liquid separation system 80 is that by a top board 81 and mutual compact siro spinning technology and successively vertical three pieces of being around in top board 81 periphery dewater the semi-surrounding frame structure with two opening surfaces that baffle plate 82 is formed, it is fixed at the bottom of the bottom Ta Bi of tower body 92 and tower, and one of them opening surface of this frame structure is just to exhanst gas outlet 60.After flue gas leaves high-tension electricity place 50, discharge exhanst gas outlet 60 through after arbitrary baffle plate 82 that dewaters.
Particularly, the baffle plate 82 that dewaters described in comprises skeleton 821 and the block water plate 822 tilting to be fixed on the multi-disc on skeleton 821 and be parallel to each other.The angle of inclination of described block water plate 822 adjusts by connector (as bolt), thus fly according to the flue gas of the resistance of waste gas pollution control and treatment system, index request and exhanst gas outlet 60 angle of inclination that the water yield adjusts block water plate flexibly, ensure better gas-liquid separation effect.In order to ensure preferably gas-liquid separation effect, described block water plate 822 adjusts within the scope of 50 ~ 70 ° with horizontal plane angle b.Preferably, this angle b is adjusted to 60 °, the gas-liquid separation effect at this angle of inclination is best.After flue gas leaves high-tension electricity place 50, segment anode plate can be taken away toward dirty droplet by flue gas, at smoke outlet, due to the stop of top board 81, can only pass through from arbitrary baffle plate 82 that dewaters; Because the block water plate 822 dewatered on baffle plate 82 is obliquely installed, the droplet be mingled with in flue gas and block water plate 822 collide, thus generation coalescence effect coalescence becomes large drop to stay on block water plate 822, and along block water plate 822 from wet method electrostatic collector demister bottom discharging tube 70 discharge, the PM2.5 materials such as the inorganic salts in water droplet, heavy metal, dust are retained down, not only make flue gas more dry, decrease the harmful substance in flue gas simultaneously, make flue gas obtain the purification of more deep layer.
Flue gas to be clean flows in tower body from entering smoke inlet 10, and after equal gas systems 20, the flue gas be evenly distributed enters tempering system 30; The modified spraying layer of tempering system 30 is to flue gas spray atomizing water, and the dust in atomized water absorption flue gas, reduces the ratio resistance of dust in flue gas; The water smoke being adsorbed with dust afterwards enters high-tension electricity place 50, and water smoke is chargedization under electric field action, and be atomized further; Now, charged water smoke and pm2.5 grit collide coalescence mutually, and common trend positive plate under the effect of Coulomb force is also caught by it, forms current and carries flue dust secretly and flow out high-tension electricity place downwards along positive plate and cathode line.Atomized water is regularly directly sprayed to positive plate thus on positive plate, forms continuous print moisture film by the atomized water spraying layer of backwashing system 40, and the grit gathered is washed away the bottom to device by the moisture film of flowing, in the pond that discharging tube 70 drains into below device.Flue gas after dedusting demist enters in adjustable gas liquid separation system 80, because wet static dedusting demister is type of giving vent to anger under upper air, segment anode plate can be taken away toward dirty droplet by flue gas, block water plate 822 on the droplet be mingled with in flue gas and adjustable gas liquid separation system collides, thus generation coalescence effect coalescence becomes large drop to stay on block water plate 822, makes the PM such as the inorganic salts in water droplet, heavy metal, dust
2.5material is retained down, and finally, the clean flue gas dewatered through degree of depth dedusting demist is discharged from exhanst gas outlet 60.Because its structure is give vent to anger under upper air, all positive plates and cathode line are in captured water smoke for a long time and form the state that moisture film washes away, and drying up fouling in the anode plate cathode line top overcoming air outlet structure in lower air inlet, makes the shortcoming that clearance declines.
Compared to prior art, one of the present invention carries acting type wet static dedusting demister, by arranging adjustable gas liquid separation system 80 in exhanst gas outlet 60, making flue gas before discharge through the more abundant process of gas-liquid separation thoroughly, avoiding containing PM such as inorganic salts, heavy metal, dusts
2.5the moisture of material is brought in chimney by flue gas, thus flue gas is purified further; Also the visible smog length of chimney and thickness is made to reduce.In addition, described adjustable gas liquid separation system can install additional easily on original wet static dedusting demister, is convenient to enterprises and institutions and transforms on existing apparatus, saves cost.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. carry an acting type wet static dedusting demister, comprise middle part separate type tower body, in this tower body, be provided with smoke inlet, all gas system, tempering system, backwashing system, high-tension electricity place, exhanst gas outlet and discharging tube from top to bottom successively; Described high-tension electricity place is energized by anode system and cathod system and produces; Described tower body comprises top tower body and bottom tower body, and described high voltage electric field distinguishes the segregation section between being distributed at the bottom of top tower body and bottom column; It is characterized in that: also comprise an adjustable gas liquid separation system; Described adjustable gas liquid separation system is located in described exhanst gas outlet.
2. according to claim 1ly carry acting type wet static dedusting demister, it is characterized in that: described adjustable gas liquid separation system is by a top board and mutual compact siro spinning technology and the successively semi-surrounding frame structure with two opening surfaces that formed of the vertical three pieces of baffle plates that dewater being around in top board periphery, it is fixed at the bottom of the bottom Ta Bi of tower body and tower, and one of them opening surface of this frame structure is just to exhanst gas outlet.
3. according to claim 2ly carry acting type wet static dedusting demister, it is characterized in that: described in the baffle plate that dewaters comprise skeleton and the block water plate tilting to be fixed on the multi-disc on skeleton and be parallel to each other, and described block water plate tilt adjustable.
4. according to claim 3ly carry acting type wet static dedusting demister, it is characterized in that: described block water plate and horizontal plane angle are 50 ° ~ 70 °.
5. according to claim 4ly carry acting type wet static dedusting demister, it is characterized in that: described block water plate and horizontal plane angle are 60 °.
6. according to any one of Claims 1 to 5, carry acting type wet static dedusting demister, it is characterized in that: described anode system comprises polylith positive plate.
7. according to claim 6ly carry acting type wet static dedusting demister, it is characterized in that: described positive plate is made up of electroconductive frp.
8. according to any one of Claims 1 to 5, carry acting type wet static dedusting demister, it is characterized in that: described cathod system comprises multiple insulator chamber and cathode line.
9. according to any one of Claims 1 to 5, carry acting type wet static dedusting demister, it is characterized in that: described tempering system comprises modified spraying layer, this modified spraying layer is provided with multiple atomizer.
10. according to any one of Claims 1 to 5, carry acting type wet static dedusting demister, it is characterized in that: described backwashing system comprises at least one deck atomized water spraying layer, described atomized water spraying layer is provided with multiple atomizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077731.5A CN105561726B (en) | 2016-02-03 | 2016-02-03 | One kind carrying acting type wet static dedusting demister |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077731.5A CN105561726B (en) | 2016-02-03 | 2016-02-03 | One kind carrying acting type wet static dedusting demister |
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| Publication Number | Publication Date |
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| CN105561726A true CN105561726A (en) | 2016-05-11 |
| CN105561726B CN105561726B (en) | 2018-08-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109078445A (en) * | 2018-10-21 | 2018-12-25 | 山东盛宝传热科技有限公司 | Flue gas ash removal takes off white integrated apparatus |
| CN109464852A (en) * | 2018-12-28 | 2019-03-15 | 启明星宇节能科技股份有限公司 | Flue gas sewage separate pipeline |
| CN113117462A (en) * | 2019-12-31 | 2021-07-16 | 奥思伟有限公司 | Moisture removing device for exhaust gas |
| CN113412143A (en) * | 2018-10-22 | 2021-09-17 | 上海必修福企业管理有限公司 | Exhaust gas treatment system and method |
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| CN203090630U (en) * | 2013-03-18 | 2013-07-31 | 广州市天赐三和环保工程有限公司 | Flue gas demisting device for desulfurization tower |
| CN105057101A (en) * | 2015-08-17 | 2015-11-18 | 中国重型机械研究院股份公司 | Cylindrical vertical wet-type explosion-proof and voltage-resistant electric precipitator |
| CN205517074U (en) * | 2016-02-03 | 2016-08-31 | 江门市同力环保科技有限公司 | Carry effect type wet -type electrostatic precipitator defogging device |
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| JP3175082U (en) * | 2012-02-08 | 2012-04-19 | 株式会社日立プラントテクノロジー | Wet electrostatic precipitator |
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| CN109078445A (en) * | 2018-10-21 | 2018-12-25 | 山东盛宝传热科技有限公司 | Flue gas ash removal takes off white integrated apparatus |
| CN113412143A (en) * | 2018-10-22 | 2021-09-17 | 上海必修福企业管理有限公司 | Exhaust gas treatment system and method |
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| CN113117462A (en) * | 2019-12-31 | 2021-07-16 | 奥思伟有限公司 | Moisture removing device for exhaust gas |
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| Publication number | Publication date |
|---|---|
| CN105561726B (en) | 2018-08-17 |
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Denomination of invention: An Efficient Wet Electrostatic Precipitation and Mist Removal Device Effective date of registration: 20221121 Granted publication date: 20180817 Pledgee: Agricultural Bank of China Limited Jiangmen Xinhui Sub branch Pledgor: JIANGMEN TONGLI ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022440000305 |