CN206924891U - Wet type electric dust-removing device - Google Patents
Wet type electric dust-removing device Download PDFInfo
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- CN206924891U CN206924891U CN201720808411.2U CN201720808411U CN206924891U CN 206924891 U CN206924891 U CN 206924891U CN 201720808411 U CN201720808411 U CN 201720808411U CN 206924891 U CN206924891 U CN 206924891U
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Abstract
It the utility model is related to a kind of Wet type electric dust-removing device, including with flue gas import and export, housing, male/female electrode systems, high frequency power source system, spray system, anode system includes anode tube, cathod system includes the corona wire being arranged in anode tube, anode tube uses electroconductive frp, spray system includes the multiple nozzles being connected with water tank, and nozzle is located at the top of anode system and cathod system, and nozzle uses spiral atomizer.The utility model washes away dust collecting electrode surface to carry out deashing, can effectively overcome and collect the problems such as fine dust particulate matter, heavy metal, organic pollution, containing the soot emissions in wet flue gas up to 10mg/m3Even 5mg/m3Hereinafter, efficiency of dust collection is high, the pressure loss is small, simple to operate, energy consumption is small, movement-less part, without reentrainment of dust, maintenance cost is low, the production downtime is short, be operable with below flue gas dew point temperature, it is compact-sized can be combined with each other with other smoke gas treatment equipment, design form variation.
Description
Technical field
Field of dust removal equipment is the utility model is related to, more particularly to a kind of Wet type electric dust-removing device.
Background technology
Electrostatic precipitator is to purify the minimum gas-liquid separation wet method equipment of fluid resistance, available for metallurgical off-gas acid-making, titanium white
Powder calcining vent gas treatment, all kinds of acid mist processing in chemical plant, are used for the industries such as sulfuric acid.
Alternating current is become direct current and delivers to demisting by electrostatic precipitator by electrostatic control means and high direct voltage generating means
In device, powerful electric field is formed between corona wire (negative electrode) and acid mist trapping pole plate (anode), is ionized air molecule,
Moment produces substantial amounts of electronics and positive and negative ion, these electronics and ion and makees directed movement in the presence of electric field force, constitute
Trap the medium of acid mist；Make acid mist particulate charged simultaneously, these charged acid mist particles make orientation fortune in the presence of electric field force
It is dynamic, arrive at onto the positive plate of trapping acid mist, afterwards, charged particle discharges electronics on pole plate, and then acid mist is collected, in weight
Flowed under power effect in the storage acid tank of acid-mist-removing device, thus reached the purpose of purification acid mist.
But there is drawback in the electrostatic precipitator of prior art in the following aspects：
（1）, antiseptic property：What it is due to electrostatic precipitator processing is saturation acidity wet flue gas, so dust arrester is easy to
Chemical attack is produced below dew point, so as to cause device damage.
（2）, power-supply system：To make electrostatic precipitator high-efficiency operation, it is necessary to often add voltage as high as possible, so, pass
The high voltage power supply high energy consumption of system, electric damage easily is climbed due to condensing, be not easy to safeguard.
（3）, insulation system：It is attached to if any moisture, dust on porcelain insulator surface, or is mixed into the insulating oil of electrostatic precipitator
In, electric insulation will significantly deteriorate, and reduce effective voltage.
（4）, soot cleaning system：After being operated for a long time except fog chamber, efficiency of dust collection gradually reduces, so must beat appropriate in the period of
Opening or cleaning is swept, and the cycle periodically cleaned determines according to kind, roaster form, mode of operation of ore deposit etc..
（5）, sparking electrode：The sparking electrode of electrostatic precipitator is due to the adhesion of dust, the formation of insulating coating and burn into
Installation quality is bad and causes broken string, or the reason such as bending due to that can not possibly correct needs to be changed, and uses solfatara
And during zinc ore, sparking electrode often has to form the phenomenon of insulating coating.
（6）, laying dust system：Receiving electrode stereotype, board-like, tubular type are generally all not only held high with stereotype thick 3mm, such a material
Expensive and corrosion-resistant and electric conductivity is all very poor.
（7）, airflow distribution device：The uneven effect of flue gas that flow of flue gas is brought is not considered, so as to which then dedusting is imitated
Fruit is poor.
The content of the invention
The purpose of this utility model is to provide a kind of Wet type electric dust-removing device, suitable for the processing containing wet flue gas, is applied to
The efficient collection of the dust emission of the large-scale energy consumption factory such as power plant, steel mill, chemical plant, boiler factory and processing, it is possible to achieve country is most
New minimum discharge standard is less than or equal to 5mg/m3.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of Wet type electric dust-removing device, including with gas approach, exhanst gas outlet, housing, be arranged in described housing
Anode system and cathod system, be powered for described anode system and cathod system power-supply system, be arranged on it is described
Housing in spray system, described anode system includes anode tube, and described cathod system includes being arranged on described sun
Corona wire in pole pipe；Described anode tube uses electroconductive frp；Described spray system is more including being connected with water tank
Individual nozzle, described nozzle are located at the top of described anode system and cathod system, and described nozzle is atomized using spiral
Nozzle.
Preferably, described electroconductive frp includes carbon fiber bed course, chopped strand strip bed course, glass layer of cloth and glass
Glass surface bed course, and in described anode tube：Described carbon fiber bed course, chopped strand strip bed course, glass layer of cloth with
And glass surface bed course is set gradually from inside to outside, described electroconductive frp surfaces externally and internally is also coated with vinyl layer.
Carbon fibre mat, chopped strand strip pad can strengthen the rigidity and intensity of anode tube；Glass-fiber-fabric and glass surface pad then strengthen
The pull resistance and surface uniformity, fire resistant flame retardant of anode tube.Described vinyl layer includes high-carbon quantity graphite, fire-retardant
The composition of agent.The phosphorus content ＞ 98% of high carbon content graphite, vinylite can improve the lifting corrosion resistance of anode tube；Stone
Mo Ze enhances the electric conductivity of anode tube；Fire retardant improves the fire resistant flame retardant characteristic of anode tube.
Preferably, the section of described anode tube is the regular polygon that inscribed circle is 350-360mm, described anode tube
Thickness be 2-4mm, length 5-6m.
Preferably, described corona wire be astroid, jaggies, angle steel prickle wire, tubular prickle wire, fish-bone acupuncture line,
One kind in helix.
It is as follows according to the different preferred selection orders for needing above-mentioned corona wire when selecting corona wire：
1. it is by solid and reliable degree and mechanical strength size, selecting sequence：Fish-bone acupuncture line, tubular prickle wire, spiral
Line, angle steel prickle wire, astroid, jaggies.
2. by the degree of discharge inception voltage, selecting sequence is：Tubular prickle wire, fish-bone acupuncture line, angle steel prickle wire, spiral
Line, astroid.
3. by the distributing homogeneity of plate current density, selecting sequence is：Helix, astroid, new tubular prickle wire, pipe
Shape prickle wire, jaggies, fish-bone acupuncture line, angle steel prickle wire.
4. from the point of view of the quality of VA characteristic curve, selecting sequence is：Angle steel prickle wire, jaggies, tubular prickle wire, fish
Spicule thorn line, helix, astroid.
5. by the adaptability to high concentrate dust, selecting sequence is：Angle steel prickle wire, jaggies, tubular prickle wire, fish-bone
Acupuncture line, helix, astroid.
6. by the transfer performance of rapping power, selecting sequence is：Helix, fish-bone acupuncture line, tubular prickle wire, angle steel prickle
Line, astroid, jaggies.
7. economically considering, selecting sequence is：Astroid, jaggies, angle steel prickle wire, tubular prickle wire, fish-bone
Acupuncture line, helix.
Compare from above different angle, the advantages of every kind of cathode line has itself, from firm reliability, to various flue gases
Adaptability and economy etc. synthetically from the point of view of, selecting sequence should be：Jaggies, new tubular prickle wire, tubular prickle wire, spiral
Line, angle steel prickle wire, fish-bone acupuncture line, astroid.
In addition different cathode lines should can be selected for different smoke properties and deduster structure.Such as electric field dust content
When higher, corona blocking is easily produced, tubular prickle wire or helix should be selected；As dust content is relatively low, particle size of dust is thin,
When stickiness is big, ratio resistance is higher, preferably from helix；When and for example flue gas flow rate is high in electric field（More than 1.3m/s）, preferably select pair
The adaptable jaggies of wind, fish-bone acupuncture line or helix.
Preferably, the Duplication in described nozzle distribution spray region is 150-200%；The injection angle of described nozzle
For 60-90 degree；The material of described nozzle is polytetrafluoroethylene (PTFE) or 304 stainless steels.
Preferably, the jetting pressure 0.1-0.4Mpa of described nozzle, flow 24-42L/min.
Preferably, the inwall of described housing is coated with glass resin flake layer, the thickness of described glass resin flake layer
Spend for 2-3mm, reach preferable antiseptic effect.
Preferably, described power-supply system is high-frequency constant current source, and it is bigger that high-frequency constant current source plays corona current, energy consumption is low,
Constant current effect can be ensured, make dust removing effects than conventional lift 30-50%.
High-frequency constant current source by three-phase 380V/50Hz power frequency supplies through three phase rectifier into direct current, be reverse into through inverter circuit
More than 10kHz high-frequency ac current, is then boosted by high frequency transformer, is carried out rectifying and wave-filtering through hf rectifier, is formed
The dither current supply Electric Field in ESP of tens KHzs.High frequency electric source mainly includes：Rectifier, inverter, transformation
Device and controller etc., the Power Control of high frequency electric source include pulse-height modulation, pulse width modulation and pulse frequency modulated three
Kind method, it exports supply current and is made up of a series of burst pulses, and impulse amplitude, width and frequency can adjust.The power supply
Possess steady output voltage, conversion efficiency and power factor height, light weight, small volume, switch board and transformer integration, to factory
Electricity consumption " pollution " is small, working voltage is high, output current is big, improves removal efficiency.
Preferably, described electric dust collector also includes hot-air blowing system, described hot-air blowing system include blower fan,
Heater block, described blower fan, heater block is connected by pipeline and the heat air delivery into described housing, by blower fan and
Heater block constantly produces high-temperature gas in housing, allows shell body temperature to be significantly larger than dew-point temperature, so as to avoid condensation
Climb electrical short phenomenon.
Preferably, described electric dust collector also includes the airflow uniform distribution plate being arranged in described housing, described gas
Stream uniform board is located at described gas approach downstream, described anode system and cathod system upstream.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
The utility model washes away dust collecting electrode surface to carry out deashing by spray system, can effectively overcome collection subparticle
Thing（PM2.5 dust, SO3Acid mist, aerosol）, heavy metal（Hg、As、Se、Pb、Cr）, organic pollution（Polycyclic aromatic hydrocarbon, bis- Evil
English）Etc. problem, containing the soot emissions in wet flue gas up to 10mg/m3Even 5mg/m3Below.
The utility model efficiency of dust collection is high, the pressure loss is small, simple to operate, energy consumption is small, movement-less part, raises without secondary
Dirt, maintenance cost be low, the production downtime is short, be operable with below flue gas dew point temperature, it is compact-sized can be with other smoke gas treatments
Equipment be combined with each other, design form variation.
Brief description of the drawings
Accompanying drawing 1 is the process schematic representation of the present embodiment；
Accompanying drawing 2 is the schematic cross-sectional view of electric dust-removing equipment in the present embodiment；
Accompanying drawing 3 is A-A schematic cross-sectional views in accompanying drawing 2；
Accompanying drawing 4 is the schematic cross-sectional view of the present embodiment middle-jiao yang, function of the spleen and stomach pole pipe.
Wherein：1st, housing；10th, gas approach；11st, exhanst gas outlet；2nd, anode tube；3rd, corona wire；40th, water tank；41st, spray
Mouth；5th, high-frequency constant current source；60th, blower fan；61st, heater block；7th, airflow uniform distribution plate；8th, desulfurizing tower.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
A kind of Wet type electric dust-removing device as depicted, including with gas approach 10, exhanst gas outlet 11 housing 1, set
Put the anode system in housing 1 and cathod system, the power-supply system being powered for anode system and cathod system, be arranged on
Spray system in housing 1.Wherein：
Anode system includes anode tube 2, and anode tube 2 uses electroconductive frp, and the section of anode tube 2 is that inscribed circle is 350-
360mm regular polygon, such as regular hexagon, the anode tube 2 of multiple regular hexagons is in cellular setting, and the thickness of anode tube 2 is about
For 3mm, length 5-6m.In the present embodiment：In order that anode tube 2 have good rigidity, intensity, electric conductivity, pull resistance,
The features such as surface uniformity, corrosion-resistant, fire resistant flame retardant, as shown in Figure 4：Electroconductive frp uses layer structure so that anode
Pipe 2 uses successively from inside to outside：30 g/m of 1mm thickness3Carbon fiber bed course 20,1mm thickness 450g/m3Chopped strand strip bed course
21st, 0.4mm thickness 300g/m3 glass layer of cloth 22 and 50g/m3 glass surface bed course 23, and appearance in electroconductive frp
Face is also coated with vinyl layer 24.Wherein：Carbon fibre mat, chopped strand strip pad, glass-fiber-fabric and glass surface pad are equal
It can be formed by directly buying acquisition by suppressing；Vinylite, wherein containing high carbon content（＞ 98%）Graphite, resistance
Agent etc. is fired, its preparation technology is as follows：
Mixed simultaneously by methacrylic acid and with epoxide equivalent, the brominated epoxy resin of brominated amount and polymerization inhibitor and catalyst
Obtain through 90 DEG C of -130 DEG C of heating response 2-3h, and be diluted with styrene, obtain resin solution.
In the case that electroconductive frp is constantly infiltrated by vinylite, gel content is allowed to control more low better, experiment
Than advantageous in terms of proving this to fire resistance, mechanical property, material cost.
The conductive fiber resistivity of anode tube 2 is controlled in 50 below Ω, is about 100- compared to general specific insulation
500 Ω cm, common several material resistivity：At 20 DEG C, Ω m of pure water 18.3 × 108, graphite 8-13 × 10-6 Ω m, iron
9.78×10-8Ω·m。
Cathod system includes the corona wire 3 being arranged in anode tube 2, and corona wire 3 is located at the center of anode tube 2, corona wire 3
As needed using one kind in astroid, jaggies, angle steel prickle wire, tubular prickle wire, fish-bone acupuncture line, helix.
It should be noted in the selection of corona wire 3：First, the performance of corona wire 3 directly concerns electrostatic precipitator efficiency of dust collection;Two, because
Corona wire 3 is broken caused consequence, electrostatic precipitator normal operation is influenceed the most serious, it will causes electric field short circuit or tight
Weight flashover, therefore, in electrostatic precipitator design, it should be gone out according to different working conditions from adaptability, security, economy
Send out reasonable selection polar curve.
Spray system includes multiple nozzles 41 for being connected with water tank 40, and nozzle 41 is located at anode system and cathod system
Top, nozzle 41 use spiral atomizer.The Duplication that nozzle 41 is distributed is 150-200%, and the injection angle of nozzle 41 is
60-100 degree, the jetting pressure 0.3Mpa of nozzle 41, flow is 24-42L/min so that spray reaches more preferable effect.Nozzle
41 material is polytetrafluoroethylene (PTFE), can also improve the antiseptic property of nozzle in itself, or is 304 steel.Water tank 40 can use
Sulfur removal technology water, carry out also playing a part of desulfurization to flue gas while cleaning showers.New and effective spray system is per Tianchong
One is washed to three times, one time one to ten minutes, to rinse one daily to twice, one time three to five minutes were excellent, can be avoided secondary
Airborne dust, so as to reach good ash-removal effect, the dust timing of receiving electrode is rinsed well.
Power-supply system is high-frequency constant current source 5, and high-frequency constant current source 5 plays that corona current is bigger, and energy consumption is low, can ensure constant current
Effect, make dust removing effects than conventional lift 30-50%.
The inwall of housing 1 is coated with glass resin flake layer, and the thickness of glass resin flake layer is 2-3mm, reaches preferable
Antiseptic effect.
In the present embodiment：Electric dust collector also includes hot-air blowing system, and hot-air blowing system includes blower fan 60, heating
Part 61, heater block can be such as electric heater, and blower fan 60, heater block 61 are connected by pipeline and into housing 1
Heat air delivery, into housing 1, the point of heat air delivery can be set multiple, make hot blast conveying also more uniform.So, blower fan is passed through
60 and heater block 61 constantly produce high-temperature gas in housing 1, the particularly insulated case of housing 1, the temperature allowed in insulated case
Significantly larger than dew-point temperature, electrical short phenomenon is climbed so as to avoid condensation.
In the present embodiment：Electric dust collector also includes the airflow uniform distribution plate 7 being arranged in housing 1, airflow uniform distribution plate 7
In gas approach downstream, anode system and cathod system upstream.Flue gas first passes through gas after gas approach 10 enters in housing 1
Stream uniform board 7 carries out anode system after carrying out stream and cathod system carries out dedusting.Pass through CFD simulation of air flow experimental simulation flue gases
Flow behavior, so as to obtain optimal airflow uniform distribution mode.
In addition, the present embodiment can coordinate desulfurizing tower 8 in bottom, use is combined.
For above-described embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (10)
1. a kind of Wet type electric dust-removing device, including with gas approach, exhanst gas outlet, housing, be arranged in described housing
Anode system and cathod system, the power-supply system being powered for described anode system and cathod system, be arranged on it is described
Spray system in housing, described anode system include anode tube, and described cathod system includes being arranged on described anode
Corona wire in pipe；It is characterized in that：Described anode tube uses electroconductive frp；Described spray system includes and water tank phase
Multiple nozzles of connection, described nozzle are located at the top of described anode system and cathod system, the use of described nozzle
Spiral atomizer.
2. Wet type electric dust-removing device according to claim 1, it is characterised in that：Described electroconductive frp includes carbon fiber
Bed course, chopped strand strip bed course, glass layer of cloth and glass surface bed course, and in described anode tube：Described carbon
Fiber cushion, chopped strand strip bed course, glass layer of cloth and glass surface bed course are set gradually from inside to outside, described conduction
Fiberglass surfaces externally and internally is also coated with vinyl layer.
3. Wet type electric dust-removing device according to claim 1, it is characterised in that：The section of described anode tube is inscribed circle
For 350-360mm regular polygon, the thickness of described anode tube is 2-4mm, length 5-6m.
4. Wet type electric dust-removing device according to claim 1, it is characterised in that：Described corona wire is astroid, sawtooth
One kind in line, angle steel prickle wire, tubular prickle wire, fish-bone acupuncture line, helix.
5. Wet type electric dust-removing device according to claim 1, it is characterised in that：The weight in described nozzle distribution spray region
Folded rate is 150-200%；The injection angle of described nozzle is 60-90 degree；The material of described nozzle be polytetrafluoroethylene (PTFE) or
304 stainless steels.
6. Wet type electric dust-removing device according to claim 1, it is characterised in that：The jetting pressure 0.1- of described nozzle
0.4Mpa, flow 24-42L/min.
7. Wet type electric dust-removing device according to claim 1, it is characterised in that：The inwall of described housing is coated with glass
Scale resin layer, the thickness of described glass resin flake layer is 2-3mm.
8. Wet type electric dust-removing device according to claim 1, it is characterised in that：Described power-supply system is high frequency Constant Electric Current
Source.
9. Wet type electric dust-removing device according to claim 1, it is characterised in that：Described electric dust collector also includes hot blast
Purging system, described hot-air blowing system include blower fan, heater block, and described blower fan, heater block are connected by pipeline
The logical and heat air delivery into described housing.
10. Wet type electric dust-removing device according to claim 1, it is characterised in that：Described electric dust collector also includes setting
The airflow uniform distribution plate in described housing is put, described airflow uniform distribution plate is located at described gas approach downstream, described sun
Electrode systems and cathod system upstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808411.2U CN206924891U (en) | 2017-07-05 | 2017-07-05 | Wet type electric dust-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808411.2U CN206924891U (en) | 2017-07-05 | 2017-07-05 | Wet type electric dust-removing device |
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| Publication Number | Publication Date |
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| CN206924891U true CN206924891U (en) | 2018-01-26 |
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ID=61354416
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| CN201720808411.2U Active CN206924891U (en) | 2017-07-05 | 2017-07-05 | Wet type electric dust-removing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107175170A (en) * | 2017-07-05 | 2017-09-19 | 苏州仕净环保科技股份有限公司 | Wet type electric dust-removing device |
| CN108325328A (en) * | 2018-04-25 | 2018-07-27 | 济南永新环境科技有限公司 | It is melt into the ultra-clean abatement equipment of fine exhaust gas integration and its application method |
| CN108636610A (en) * | 2018-04-08 | 2018-10-12 | 福州清净环保设备有限公司 | A kind of wet electrical dust collector device of short pole span |
| CN114029164A (en) * | 2021-12-17 | 2022-02-11 | 南京恒瑞环保科技有限公司 | Flue gas conditioning device based on electric dust remover |
| CN114682384A (en) * | 2020-12-29 | 2022-07-01 | 陕西青朗万城环保科技有限公司 | Moxa smoke purification treatment device and manufacturing method thereof |
-
2017
- 2017-07-05 CN CN201720808411.2U patent/CN206924891U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107175170A (en) * | 2017-07-05 | 2017-09-19 | 苏州仕净环保科技股份有限公司 | Wet type electric dust-removing device |
| CN108636610A (en) * | 2018-04-08 | 2018-10-12 | 福州清净环保设备有限公司 | A kind of wet electrical dust collector device of short pole span |
| CN108325328A (en) * | 2018-04-25 | 2018-07-27 | 济南永新环境科技有限公司 | It is melt into the ultra-clean abatement equipment of fine exhaust gas integration and its application method |
| CN114682384A (en) * | 2020-12-29 | 2022-07-01 | 陕西青朗万城环保科技有限公司 | Moxa smoke purification treatment device and manufacturing method thereof |
| CN114029164A (en) * | 2021-12-17 | 2022-02-11 | 南京恒瑞环保科技有限公司 | Flue gas conditioning device based on electric dust remover |
| CN114029164B (en) * | 2021-12-17 | 2022-06-10 | 南京恒瑞环保科技有限公司 | Flue gas conditioning device based on electric dust remover |
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Address after: 215000 No. 58, Jinrui Road, Taiping Street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Shijing Technology Co.,Ltd. Address before: 215137 Taiping Town Liming Village, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU SHIJING ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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