CN205042607U - Wet electrostatic precipitator - Google Patents

Wet electrostatic precipitator Download PDF

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Publication number
CN205042607U
CN205042607U CN201520762512.1U CN201520762512U CN205042607U CN 205042607 U CN205042607 U CN 205042607U CN 201520762512 U CN201520762512 U CN 201520762512U CN 205042607 U CN205042607 U CN 205042607U
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CN
China
Prior art keywords
dust
wet cottrell
insulation protection
negative pole
spray
Prior art date
Application number
CN201520762512.1U
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Chinese (zh)
Inventor
靳瑞学
王富增
李瑞利
李文涛
杨文元
张坤
刘春霞
郭金生
卢燕
何明艳
Original Assignee
河南绿源新星环保设备有限公司
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Application filed by 河南绿源新星环保设备有限公司 filed Critical 河南绿源新星环保设备有限公司
Priority to CN201520762512.1U priority Critical patent/CN205042607U/en
Application granted granted Critical
Publication of CN205042607U publication Critical patent/CN205042607U/en

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Abstract

The utility model discloses a wet electrostatic precipitator. Its high voltage power supply (7) set up at the upper left end of body (4), heating device (10) set up at the upper right end of body (4), it sets up upper end in body (4) forever to spray (5), it arranges in and forever sprays (5) upper portion regularly to wash (6), insulation protection pipe (9) set up middle part both ends on body (4), and and high voltage power supply (7) are connected, negative pole system (12) hangs (11) through the negative pole and hangs at insulation protection pipe (9) lower extreme, positive pole system (13) welding middle part in body (4), and and negative pole system (12) sets up and the keep (shenglvehao)at a certain distance away each other, air flow distribution device (14) set up lower extreme in body (4), ash bucket (16) set up bottom under body (4). Because the utility model discloses a dust is clear away to the water film that the polar plate surface formed, and adaptability is strong to the dust, no secondary raise dust, and the non -corrosibility can be good, compact structure, area is little, and energy saving and consumption reduction has improved dust removal effect by a wide margin.

Description

Wet cottrell

Technical field: the utility model relates to a kind of wet cottrell being applied in the industrial circle dust process such as iron and steel, coal gas and chemical industry.

Background technology: along with national environmental protection policy is more and more stricter, the dust emission position being placed on overriding concern by enterprise whether up to standard.In recent years, the haze weather that China central and east continues has coverd with one deck shade, the quick-fried table that PM2.5 index continues but to the soul of national people, not only makes the visibility in city reduce, has had a strong impact on living environment and the physical and mental health of the mankind especially.Along with country and the common people more and more pay attention to environmental protection; agenda that the reduction of discharging of the pollutant that fine flue dust, SO3 acid mist, mercury etc. exist with the molten form of gas is referred, new " ambient air quality " of country includes PM2.5 in ambient air quality.

Along with increasing of domestic wet desulphurization, gypsum rain phenomenon is frequently existing, cause granular material discharged exceeding standard, and surrounding environment is impacted: during " 12 ", domestic Thermal Power Generation Industry desulfurizing item starts in a large number simultaneously, increased the weight of SO3 conversion ratio in flue gas (foreign study shows raising about 3%), so3 acid mist will be on the rise; On October 30th, 2011, what U.S. embassador in China issued the report of Beijing air pollution monitoring pushes away spy (Twitter) account " BeijingAir ", and 16 AQI have been issued in this sky altogether, and wherein the reading of 10 times has exceeded " danger " value 300.How effectively to alleviate flyash fine grained, gypsum fine grained and SO3 to the impact of environment, effectively reduce the harm that PM2.5 fine particle brings health, this is the task of top priority of air contaminant treatment industry.

Atmosphere pollution is always the problem of local government's headache, due to the particularity of furnace smoke, all there is the defect such as investment is large, the life-span is short, operating cost is high in conventional electric precipitation and sack cleaner, and conventional dust-remover tower to there is efficiency of dust collection low, national New emission standard (≤50mg/Nm cannot be met 3) requirement.

Utility model content: technical problem to be solved in the utility model there is provided one can the unique dedusting of high temperature, effectively suppresses reentrainment of dust, economize energy, improves the wet cottrell that dust removing effects uses.

The technical scheme that the utility model is adopted for achieving the above object is: the high voltage source 7 of wet cottrell is arranged on body 4 left upper end, heater 10 is arranged on body 4 upper right side, permanent spray 5 is arranged on upper end in body 4, periodic flushing 6 is placed in permanent spray 5 tops, insulation protection tube 9 is arranged on two ends, middle part on body 4, and be connected with high voltage source 7, cathod system 12 is hung in insulation protection tube 9 lower end by cathode hanger 11, anode system 13 is welded on middle part in body 4, and mutually arrange with cathod system 12 and keep at a certain distance away, airflow distribution device 14 is arranged on lower end in body 4, ash bucket 16 is arranged on body 4 lower bottom part.

The beneficial effects of the utility model are: the moisture film formed owing to adopting polar board surface is to remove dust, discharge with the form of mud simultaneously, the acid mist that after can solving wet flue gas cleaner, flue gas cannot be collected, control fine particle, remove the problems such as heavy metal such as mercury, have without reentrainment of dust, efficiency of dust collection is high, the pressure loss is little, movement-less part, antiseptic property is high, maintenance cost is low, works in below flue gas dew point temperature, and internal electric field air velocity is higher, ash bucket inclination angle is less, compact conformation, the advantages such as floor space is little.

1, smoke dust discharge concentration can be controlled in less than 10mg/ cube, is equivalent to zero-emission.

2, possess the supersaturated vapor environment that PM2.5 micronic dust condensation growth needs, promote to realize PM2.5 efficient removal by steam phase transforming, to submicron particles, and SO 3the acid mist particle formed can effectively trap, adaptable to dust, to the removal efficiency of PM2.5 up to more than 93%.

3, SO3 control of acid fog, inner by spray humidification, the particle diameter under electrostatic coagulation effect of the SO3 acid mist after charged increases, and be caught to combine in pole plate and form diluted acid in moisture film, the ratio resistance of dust can not impact dust collection performance, and removal efficiency can reach more than 95%.

4, mercury control, inner supersaturated environments and electrostatic remove effect, to particulate Hg in flue gas.Mercury oxide removal efficiency is up to more than 60%.

5, efficiency is with high investment low, and during operation, cigarette temperature is at about 50 DEG C, and flue gas flow rate reaches 3m/s, and instrument size is equal to dry electric precipitation device 2/4, and floor space is little, and dehydration rate is up to more than 99%.

6, adopt alloy, stainless steel polar plate and discharge electrode, plate face flat smooth, effectively can ensure wet electrical dust precipitator polar board surface moisture film flat smooth, without " dead band ", without dust accumulation.

7, ultra-fine atomization spray nozzle can high-quality be atomized at low pressures, rapid transmission drop and heat, not only can effectively carry out wetting to the fine particulates of wet electrical dust precipitator and invade profit, coagulation be risen to subparticle, and can ensure that polar board surface study of water film distribution is even.

8, can, according to the layout needs of field engineering, adopt CFD software for calculation to carry out flow field running optimizatin simulation to it, ensure that air-flow is even at wet electrical dust precipitator interior flow field, none-disk terminal.

Accompanying drawing illustrates: Fig. 1 is structural representation of the present utility model.

Detailed description of the invention: as shown in Figure 1, the high voltage source 7 of wet cottrell is arranged on body 4 left upper end, heater 10 is arranged on body 4 upper right side, permanent spray 5 is arranged on upper end in body 4, periodic flushing 6 is placed in permanent spray 5 tops, insulation protection tube 9 is arranged on two ends, middle part on body 4, and be connected with high voltage source 7, cathod system 12 is hung in insulation protection tube 9 lower end by cathode hanger 11, anode system 13 is welded on middle part in body 4, and mutually arrange with cathod system 12 and keep at a certain distance away, airflow distribution device 14 is arranged on lower end in body 4, ash bucket 16 is arranged on body 4 lower bottom part.

As shown in Figure 1, the water system 1 of described wet cottrell is arranged on body 4 left end, and to be connected with periodic flushing 6 with permanent spray 5 and to communicate, and circulating water pool 17 is arranged on bottom body 4, and is connected with water system 1 and communicates.

As shown in Figure 1, body 4 top of described wet cottrell arranges air admission hole 8, and venthole 15 is arranged in the middle part of body 4 bottom right.

As shown in Figure 1, body 4 left end of described wet cottrell is fixedly installed away terraced platform 3, and access door 2 is arranged in the middle part of body 4 lower-left.

Operation principle of the present utility model: flue gas enters wet cottrell, corona discharge electrode discharges, the charged backward dust collector pole motion of dust, spray system works, continuous print spraying system makes positive plate to be formed complete moisture film, and under gravity, dust is with under water film flow, fall into ash bucket, sewage enters water circulation system or sewage disposal system finally by sewage draining exit.

Wet cottrell is compared with dry electric precipitation device, dust catching principle is identical, difference is that dry electrostatic cleaner adopts hammer mode deashing, the moisture film that wet cottrell adopts polar board surface to be formed removes knoisphere or droplet, discharge with the form of turbid liquid simultaneously, enter desulphurization reaction pond or sewage treatment plant's circulatory system.Wet cottrell is adopt stainless steel or other corrosion-resistant materials on the one hand; be exactly have employed moisture film protection in addition; current moisture film is directly formed at pole plate by spraying continuously; make polar board surface can form the dynamic moisture film of one deck; by electric field, acid mist or micronic dust are trapped in pole plate; taken away by the dilution of pole plate flowing moisture film again, sour grain would not stay in pole plate for a long time and produce spot erosion now simultaneously.Wet cottrell itself originates from electric demist technology, to SO 3acid mist and other aerosol removal efficiency are up to more than 90%, and wet electrical dust precipitator is very high to fine solid particle removal efficiency in addition, be uniquely can eliminate PM2.5 micronic dust at present, outlet drain reaches 10mg/Nm 3following high-effective dust-removing equipment, therefore the ammonia process of desulfurization and wet cottrell organically combine and can realize multi-pollutant minimum discharge.

Claims (4)

1. a wet cottrell, it is characterized in that: high voltage source (7) is arranged on body (4) left upper end, heater (10) is arranged on body (4) upper right side, permanent spray (5) is arranged on body (4) interior upper end, periodic flushing (6) is placed in permanent spray (5) top, insulation protection tube (9) is arranged on two ends, body (4) upper middle part, and be connected with high voltage source (7), cathod system (12) is hung in insulation protection tube (9) lower end by cathode hanger (11), anode system (13) is welded on middle part in body (4), and mutually arrange with cathod system (12) and keep at a certain distance away, airflow distribution device (14) is arranged on body (4) interior lower end, ash bucket (16) is arranged on body (4) lower bottom part.
2. wet cottrell according to claim 1, it is characterized in that: described body (4) left end arranges water system (1), water system (1) and permanent spray (5) are connected with periodic flushing (6) and communicate, circulating water pool (17) is arranged on body (4) bottom, and is connected with water system (1) and communicates.
3. according to the wet cottrell described in claim 1, it is characterized in that: described body (4) top arranges air admission hole (8), and venthole (15) is arranged in the middle part of body (4) bottom right.
4. according to the wet cottrell described in claim 1, it is characterized in that: described body (4) left end is fixedly installed away terraced platform (3), and access door (2) is arranged in the middle part of body (4) lower-left.
CN201520762512.1U 2015-09-22 2015-09-22 Wet electrostatic precipitator CN205042607U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520762512.1U CN205042607U (en) 2015-09-22 2015-09-22 Wet electrostatic precipitator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520762512.1U CN205042607U (en) 2015-09-22 2015-09-22 Wet electrostatic precipitator

Publications (1)

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CN205042607U true CN205042607U (en) 2016-02-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105921279A (en) * 2016-05-16 2016-09-07 山东大学 Integrated cathode and anode suspension supporting water film dust removal roof electric precipitation device and system
CN106731608A (en) * 2017-01-04 2017-05-31 长沙汇聚环境技术有限公司 A kind of administering method of waste gas containing lead
CN107051152A (en) * 2017-01-04 2017-08-18 长沙汇聚环境技术有限公司 A kind of method of the leaded treating flour dust of sintering machine wet desulfurization flue gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105921279A (en) * 2016-05-16 2016-09-07 山东大学 Integrated cathode and anode suspension supporting water film dust removal roof electric precipitation device and system
CN106731608A (en) * 2017-01-04 2017-05-31 长沙汇聚环境技术有限公司 A kind of administering method of waste gas containing lead
CN107051152A (en) * 2017-01-04 2017-08-18 长沙汇聚环境技术有限公司 A kind of method of the leaded treating flour dust of sintering machine wet desulfurization flue gas

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