CN207605871U - A kind of water fog charge coupling particle modified synergistic electrostatic precipitation system of coordinated desulfurization wastewater treatment - Google Patents

Abstract

The utility model provides a kind of water fog charge coupling particle modified synergistic electrostatic precipitation system of coordinated desulfurization wastewater treatment, the system comprises water fog charge device and electrostatic precipitator, the water fog charge device is installed on electrostatic precipitator and enters on the flue in epistome, the water fog charge device connects desulfurization wastewater scratch pool, atomizer is arranged in water fog charge device, corona ring is installed in atomizer downstream, and corona ring connects high voltage power supply.The utility model obtains desulfurization wastewater and granule modified dose of mixed atomizing by double fluid atomization nozzle, quickly charged by charged ring, desulfurization wastewater can not only be effectively treated, but also fine particle can be made fully to reunite, improve the removal efficiency of particulate matter；Meanwhile water fog charge device can be installed on electrostatic precipitator and enter on the flue in epistome, flexibly and easily.

Description

A kind of water fog charge coupling particle modified synergistic electrostatic of coordinated desulfurization wastewater treatment removes Dirt system

Technical field

The utility model is related to heat pipe waste heat recoveries and flue gas ash removal and organic matter to remove field, more particularly to one kind Using heat pipe Mist heat recovering and it is related to a kind of water fog charge coupling particle modified synergistic electrostatic of coordinated desulfurization wastewater treatment Dedusting technology.

Background technology

Hot pipe technique is George Ge Luofo of U.S. Los Alamos (Los Alamos) National Laboratory in 1963 One kind of (George Grover) utility model is known as the heat transfer element of " heat pipe ", it takes full advantage of heat-conduction principle and phase The heat of thermal objects, is transmitted to outside heat source rapidly by the quick thermal transport property for becoming medium through heat pipe, and the capacity of heat transmission is super Cross the capacity of heat transmission of any known metal.Compared to shell-and-tube heat exchanger the most commonly used in coal-fired flue-gas waste heat recovery, heat pipe Heat exchanger has many advantages, such as that heat transfer efficiency is high, compact-sized, the pressure loss is small, is conducive to control dew point corrosion, in coal-fired flue-gas Potentiality are had more in heat recovery.

In addition, China is maximum coal production state and country of consumption in the world, and with coal it is uniquely in the world main The big country of the energy.Coal-burning power plant is the important emission source of Atmospheric particulates, and in China, power industry fast development, generated energy are lasting In the case that growth, coal consumption are continuously increased, Emission in Coal-fired Power Plant total amount reaches annual 3500000 tons or so over more than 30 years, Wherein fine particle discharge capacity is more than 3,000,000 tons.A large amount of coal smoke not only causes serious environmental pollution, while also tight The health of weight harmful to human.

Therefore, in order to reduce the discharge of coal smoke, there is smoke dust-removing equipment in coal-burning power plant, ensures that flue gas is entering greatly It is effectively purified before gas.Currently, smoke purifying equipment 90% or so uses electrostatic precipitator in coal-burning power plant of China (ESP).ESP high dust collection efficiencys are up to 99% or more to 10 μm of grain size or more dust particles removal efficiency, but (special for 10 μm Be not 2.5 μm) following subparticle, due to minuteness particle be difficult to it is charged so that fine grained is difficult to effectively remove, it is difficult to realize cigarette The ultra-clean discharge of aerated particle object, simultaneously as having seriously affected people containing a large amount of harmful substances in fine particle Health.

In addition, to realize that the ultra-clean discharge of SO2 in flue gas, coal-burning power plant generally use Wet Flue Gas Desulfurization Technique, efficiently taking off While except SO2, a large amount of waste water has also been discharged.Conventional " three headers " technique is difficult to remove the Cl in waste water^-, cause to handle Waste water afterwards is difficult to recycle, and the desulfurization wastewaters zero-discharge technology such as membrane filtration, MVR, and investment operating cost is high, limits reality Popularization and application in border.

In view of the above-mentioned problems, the utility model provide a kind of new fume afterheat using heat pipe and its flue gas pollutant at System and method are managed, heat source is made full use of, reduce energy consumption, improve smoke discharging effect.

Utility model content

In view of the above-mentioned problems, the utility model is improved on the basis of utility model in front, with desulfurization wastewater and Granule modified dose forms charged droplet by water fog charge device, and mixing charged droplet is sprayed into flue gas, is fully connect with flue gas It touches, fine particle can effectively be reunited and charged, by the collective effect of water fog charge device and electrostatic precipitator, improve thin The removal efficiency of particle, while desulfurization wastewater can be effectively treated, obtain a kind of water fog charge coupling of coordinated desulfurization wastewater treatment Granule modified synergy electrostatic precipitator technology.

To achieve the goals above, the technical solution of the utility model is as follows：

A kind of water fog charge coupling particle modified synergistic electrostatic precipitation system of coordinated desulfurization wastewater treatment, the system packet Water fog charge device and electrostatic precipitator are included, the water fog charge device is installed on electrostatic precipitator and enters on the flue in epistome, The water fog charge device connects desulfurization wastewater scratch pool, and atomizer, the installation of atomizer rear portion is arranged in water fog charge device Corona ring, corona ring connect high voltage power supply；Flue gas first passes around water fog charge device, and desulfurization wastewater is from scratch pool through two-fluid mist Change nozzle and forms spraying, it is charged after the corona ring powered by high voltage power supply, it is sufficiently mixed later with flue gas, is formed and contain wet Grain；Then, a dry process is undergone containing wet granular, moisture gradually evaporates, and charge is gradually shifted from drop to particle, makes portion Divide dust particles charged.

Preferably, further including heater, the desulfurization wastewater preheats before entering water fog charge device by heater.

Preferably, the system comprises granule modified dose of storage tank, the desulfurization wastewater after the preheating passes through granule modified Granule modified dosage form resulting mixture is added in agent storage tank, enters back into water fog charge device.

Preferably, the heater is arranged in flue.

Preferably, the electrostatic precipitator includes electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section and plasma/super Acoustical coupling is catalyzed field dedusting section, and wherein electrostatic precipitation section setting is arranged dust collecting pole plate and is produced inside electrostatic precipitation section in front Raw electrostatic field, electrostatic/ultrasonic coupling dedusting section are arranged behind electrostatic precipitation section, setting in electrostatic/ultrasonic coupling dedusting section There are dust collecting pole plate and ultrasonic wave that end occurs, and electrostatic field is generated in inside, end and external supersonic generator occur for ultrasonic wave Connection；Plasma/ultrasonic coupling catalysis field dedusting section is arranged behind electrostatic/ultrasonic coupling dedusting section, plasma/ultrasonic coupling It is catalyzed setting plasma reactor and ultrasonic wave in field dedusting section and end occurs, ultrasonic wave occurs end and occurs with external ultrasonic wave Device connects.

Preferably, the electrostatic precipitation section is two-stage, it is the first order and the second level respectively；Electrostatic/the ultrasonic coupling Dedusting section is two-stage, is the third level and the fourth stage respectively, plasma/ultrasonic coupling catalysis field dedusting section is level-one, is level V.

Preferably, the dust collecting pole plate is mutually parallel；Several corona discharge electrodes are evenly arranged between dust collecting pole plate；Dust collecting pole plate Surface is equipped with deashing device.

Preferably, plasma reactor uses line-plank frame, including ground connection pole plate, ceramic wafer, corona discharge electrode and height Voltage source, earthing pole plate earthing, ceramic wafer are covered in formation line plate on pole plate, and ceramic wafer forms medium resistance as block media Gear electric discharge, while supported catalyst, as catalyst carrier；The corona discharge electrode be arranged two blocks of line plates opposite ceramic wafer it Between.

Preferably, residual heat using device is arranged in water fog charge device front, the residual heat using device is heat pipe, The heat pipe includes vertical portion, horizontal component and VERTICAL TUBE, and the wherein bottom end of vertical portion is connected to horizontal component, the level Direction of the part from the bottom end of vertical portion away from vertical portion extends, and the horizontal component lower part connection is multiple vertical Pipe, the VERTICAL TUBE are arranged in flue, and vertical portion is arranged outside flue.

Preferably, the horizontal component is flat tube structure, VERTICAL TUBE is circular tube structure, and horizontal component is rectangular knot Structure；The VERTICAL TUBE is multiple rows of, wherein adjacent two rows are to be staggered in arrangement；The center of circle of VERTICAL TUBE and two closed on of adjacent row The VERTICAL TUBE center of circle constitutes isosceles triangle, and the center of circle of the VERTICAL TUBE is located at the position of the point of isosceles triangle apex angle.

Compared with prior art, the utility model has the following advantages：

1) the utility model obtains desulfurization wastewater and granule modified dose of mixed atomizing by double fluid atomization nozzle, passes through Charged ring is quickly charged, desulfurization wastewater can not only be effectively treated, but also fine particle can be made fully to reunite, and improves the de- of particulate matter Except efficiency；Meanwhile water fog charge device can be installed on electrostatic precipitator and enter on the flue in epistome, flexibly and easily.It being capable of pole The particle of the big PM2.5 that goes out.

2) desulfurization wastewater is heated first with fume afterheat after electrostatic precipitator, to improve desulfurization wastewater subsequent evaporation Speed；

3) water fog charge device is installed on electrostatic precipitator to enter on the flue in epistome, is situated between using desulfurization wastewater as atomization Water fog charge technology is combined by matter with electrostatic precipitator；

4) by adding granule modified dose in desulfurization wastewater：Waste water energy caused by one side flue gas desulfurization accesses effectively Processing, reduce processing desulfurization wastewater cost；On the other hand, the addition of agglomerator can preferably promote on the original basis Into the reunion of particle in flue gas, to improve the efficiency of removing；

5) desulfurization wastewater and granule modified dose of mixture form mixed atomizing by double fluid atomization nozzle, spray by height The charged ring of voltage source power supply, forms charged drop；

6) flue gas is sufficiently mixed with the charged drop containing granule modified dose, enhances viscous force, Coulomb force between particle, Promote dust particles reunion in flue gas to grow up, improve the charging characteristic of dust particles, then, containing wet granular undergo one it is dry Process, moisture gradually evaporate, and charge is gradually shifted from drop to particle, keeps part dust particles charged；

7) particle after charged enters electrostatic precipitator, since particle agglomeration increases and pre electrified, effectively increases electrostatic Deduster removes fine grain efficiency；

8) the utility model is transformed original electrostatic precipitator, by being divided into three different sections, each section Different pollutants is targetedly removed, can not only realize the removing of large particle in flue gas well, and by super Sound wave can effectively remove fine particle to the coalescence agglomeration of particle, can further remove to PM10 and PM2.5.Fortune With plasma technique to the degradation of organic pollution, in conjunction with the high frequency dispersion effect of ultrasonic wave, in efficient degradation flue gas Organic pollution.The utility model is in the removing for realizing that coal-fired flue-gas high-effective dust-removing realizes organic matter simultaneously.

9) the utility model improves the structure of the evaporation ends of the heat pipe in UTILIZATION OF VESIDUAL HEAT IN, by the evaporation ends of heat pipe Farther direction is extended to, in the case where not changing the condensation end volume of heat pipe so that the endotherm area of the evaporation ends of heat pipe Increase, the heat absorption range of heat pipe can be expanded in this way, the heat of heat source distalmost end can be absorbed.Heat in compared with the existing technology Pipe evaporation ends and condensation end are consistent size.The volume and floor space of heat exchanger are reduced simultaneously so that compact-sized.

10) research of a large amount of numerical simulation and experiment has been carried out, distributed architecture of the opposite heat tube in UTILIZATION OF VESIDUAL HEAT IN carries out Optimal structure, and obtain by research the best relative formula of heat pipe distribution, the distribution of heat pipe is further increased, reaches most Good heat absorption, reduces cost.

Description of the drawings

Fig. 1 is the utility model flue gas processing device structural schematic diagram.

Fig. 2 is the utility model heat pipe structure schematic diagram.

Fig. 3 is schematic diagrames of the Fig. 2 from bottom.

Fig. 4 is the heat pipe partial structural diagram that communicating pipe is arranged in the utility model.

Fig. 5 is that heat pipe structure schematic diagram is arranged in flue in the utility model.

Fig. 6 is the partial enlargement mark schematic diagram of Fig. 3.

Fig. 7 is the utility model electrostatic precipitator structural schematic diagram.

Fig. 8 is the plasma reactor structural schematic diagram in electrostatic precipitator.

In figure：Wherein, 1. water fog charge device, 2. 3. charged ring of double fluid atomization nozzle, 4. insulator, 5. high voltage power supply 6. 9. heater of chimney 7. electrostatic rear pass, 8. electrostatic precipitator, 10. 11. granule modified doses of storage tanks of desulfurization wastewater scratch pool

Heat pipe：

101- vertical portions, 102- horizontal components, 103- VERTICAL TUBEs, 104- pipelines, 105- air ducts, 106- fume pipes Road, 107- communicating pipes

Electrostatic precipitator：

81- shells, 82- dust collecting pole plates, 83- supersonic generators, 84- are grounded pole plate, 85- air-introduced machines, 86- ash buckets, 87- Ceramic wafer, 88- corona discharge electrodes, 89- high voltage power supplies

Specific implementation mode

Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

Herein, if without specified otherwise, it is related to formula, "/" indicates that division, "×", " * " indicate multiplication.

As shown in Figure 1, a kind of water fog charge coupling particle modified synergistic electrostatic precipitation system of coordinated desulfurization wastewater treatment, The system comprises water fog charge device 1 and electrostatic precipitator 8, the water fog charge device 1 is installed on 8 entrance of electrostatic precipitator On the flue of front, the water fog charge device 1 connects desulfurization wastewater scratch pool 10, and atomizer 2 is arranged in water fog charge device, Corona ring 3 is installed at 2 rear portion of atomizer, and corona ring 3 connects high voltage power supply 5.In the present invention, flue gas first passes around water mist Charge device 2, desulfurization wastewater form mixed atomizing through double fluid atomization nozzle 2 from scratch pool 10, are powered by high voltage power supply 5 It is charged after corona ring 3, it is sufficiently mixed later with flue gas, is formed and contain wet granular；Then, fume afterheat is undergone containing wet granular Dry process, moisture gradually evaporate, and charge is gradually shifted from drop to particle, keeps part dust particles charged.

The utility model obtains desulfurization wastewater and granule modified dose of mixed atomizing by double fluid atomization nozzle, passes through lotus Electric ring is quickly charged, desulfurization wastewater can not only be effectively treated, but also fine particle can be made fully to reunite, improve the removing of particulate matter Efficiency；Meanwhile water fog charge device can be installed on electrostatic precipitator and enter on the flue in epistome, flexibly and easily.With it is current The prior art is compared, and water fog charge device, which is installed on electrostatic precipitator, to be entered on the flue in epistome, using desulfurization wastewater as mist Change medium, water fog charge technology is combined with electrostatic precipitator, dust collection capacity can be greatlyd improve.

Preferably, the system also includes heater 9, the desulfurization wastewater passes through before entering water fog charge device 1 Heater 9 preheats.Preferably, the heater 9 is the waste heat utilization heat exchanger of 8 rear pass 7 of electrostatic precipitator.

By in desulfurization wastewater first with electrostatic precipitator after fume afterheat heated, it is follow-up to improve desulfurization wastewater Evaporation rate further increases dust removing effects.

Preferably, the system comprises granule modified dose of storage tank 11, the desulfurization wastewater after the preheating is changed by particle Granule modified dosage form resulting mixture is added in property agent storage tank 11, enters back into water fog charge device 2.

The utility model is by passing through granule modified dose of addition in desulfurization wastewater：Waste water caused by one side flue gas desulfurization It can effectively be handled, reduce the cost of processing desulfurization wastewater；On the other hand, the addition of agglomerator can be in original base On, preferably promote the reunion of particle in flue gas, to improve the efficiency of removing.

Utility model works process is as follows：Flue gas first passes around water fog charge device 1, and desulfurization wastewater is passed through from scratch pool 10 The preheating of heater 9 is crossed, granule modified dosage form resulting mixture then is added from granule modified dose of storage tank 11, through double fluid atomization nozzle 2 form mixed atomizings, charged after the corona ring 3 powered by high voltage power supply 5, are sufficiently mixed later with flue gas；On the one hand, charged Drop can be humidified to flue gas, it is quenched to cool down；On the other hand, the mixing drop of the particulate matter in flue gas and desulfurization wastewater connects After touching, viscous force, the Coulomb force between particle are enhanced, dust particles reunion in flue gas is promoted to grow up；Then, contain wet granular A dry process is undergone, moisture gradually evaporates, and charge is gradually shifted from drop to particle, keeps part dust particles charged, It is recycled after realizing desulfurization wastewater evaporation simultaneously；

When flue gas enters 8 electric field at different levels of electrostatic precipitator, due to reducing smoke temperature, increase flue gas relative humidity is conducive to electrostatic Deduster works, and charged droplet can promote the reunion between dust particles, increases grain diameter, and it is special to improve charging particle Property, the collective effect of these factors can improve the efficiency of electrostatic precipitator removing dust especially fine dust (PM2.5)；

After the collective effect of water fog charge device and electrostatic precipitator, flue gas is effectively purified, and is then passed through Chimney 6 discharges, into air.

Insulator 4 is set between high voltage power supply 5 and corona ring 3, the insulation effect outside water fog charge device can be effectively ensured Fruit ensures personal safety.

Preferably, the high pressure of the high voltage power supply is no more than 80kV (unit).

By above-mentioned, the dedusting for 10 μm of (especially 2.5 μm) following subparticles, efficiency of dust collection can be greatly improved Reach 95% or more.

In order to further enhance dust removing effects, the utility model has carried out further improvement to deduster.

Preferably, as shown in fig. 7, electrostatic precipitator 8 includes electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section and waits Ion/ultrasonic coupling is catalyzed field dedusting section, and in front, the inside is arranged dust collecting pole plate 82 and in electrostatic for wherein electrostatic precipitation section setting Dedusting section generates electrostatic field, and ash bucket 86 is arranged in lower section, and electrostatic/ultrasonic coupling dedusting section is arranged behind electrostatic precipitation section, Inside generates electrostatic field, and dust collecting pole plate is provided in electrostatic/ultrasonic coupling dedusting section and end occurs for ultrasonic wave, end occurs for ultrasonic wave It is connect with external supersonic generator 83；Plasma/ultrasonic coupling catalysis field dedusting section is arranged in electrostatic/ultrasonic coupling dedusting Below, end, ultrasonic wave hair occur section for setting plasma reactor and ultrasonic wave in plasma/ultrasonic coupling catalysis field dedusting section It causes trouble and is connect with external supersonic generator.

The utility model is transformed original electrostatic precipitator, and by being divided into three different sections, each section has Different pollutants is targetedly removed, can not only realize the removing of large particle in flue gas well, and pass through ultrasound Wave can effectively remove fine particle to the coalescence agglomeration of particle, especially remaining PM10 and PM2.5 particles.With Plasma technique is to the degradation of organic pollution, in conjunction with the high frequency dispersion effect of ultrasonic wave, in efficient degradation flue gas Organic pollution.The utility model is in the removing for realizing that coal-fired flue-gas high-effective dust-removing realizes organic matter simultaneously.

The utility model avoids shadow of the particle to dust removing effects by the rational collocation of these three stage sequencings It rings so that dust removing effects reach best.On the contrary, finding through a large number of experiments, if by the sequence of three phases not according to this Application is arranged, then pollutant discharge is with obvious effects bad.

Preferably, electrostatic precipitation section, electrostatic/ultrasonic coupling dedusting section are set using more of the routine of wide polar distance, high voltage Meter mode, with pole span 300mm-400mm, working voltage is no more than 80kV；Preferably, the electrostatic precipitation section is two-stage, point It is not the first order and the second level., can be more efficiently by bulky grain by the way that two-stage dedusting is arranged, such as PM10 or more is gone It removes.

Preferably, the electrostatic precipitation section first order is different with the electric field strength of the second level.Further preferably, the second level Electric field strength be less than the first order electric field strength.It is primarily due to the dedusting by the first order, the bulky grain contained in flue gas Decline, therefore by reducing electric field strength, can to achieve the effect that using the less energy essentially identical.

Preferably, every grade of multiple dust collecting pole plates 82 of setting, the dust collecting pole plate 82 are mutually parallel；Between dust collecting pole plate Even several corona discharge electrodes of arrangement；Dust collecting pole plate surface is equipped with deashing device, removes the dust of polar board surface, falls within the ash below shell Bucket, is taken away by ash conveying device.

Preferably, the corona discharge electrode is connected with high voltage power supply, electric field is established between dust collecting pole plate 82.

The high pressure of the high voltage power supply is no more than 80kV (unit).

Preferably, the system also includes controller, PM10 dust detectors are arranged in electrostatic precipitation section entrance, for examining The PM10 concentration of entry position is surveyed, PM10 dust detectors connect with controller data, and the controller is according to the PM10 of detection Concentration automatically controls the intensity of electric field.

If the PM10 concentration of detection is got higher, controller enhances the intensity of electric field automatically, if the PM10 concentration of detection It is lower, then controller reduces the intensity of electric field automatically.

Controller controls the size of electric field by controlling the size to the output power of corona discharge electrode.

By above-mentioned intelligent control, the size of electric field is controlled automatically according to particle concentration, to realize system Intellectualized operation, and energy saving requirement is may also reach up, further increase the pollutant removing effect of flue gas.

Preferably, PM10 dust detectors, the controller is respectively set in the first order entrance and second level entrance The data detected according to the PM10 dust detectors of first order entrance and second level entrance independently control the first order and second Electric field strength in grade.

The electrostatic/ultrasonic coupling dedusting section is two-stage, is the third level and the fourth stage respectively, plasma/ultrasonic coupling is urged It is level-one to change field dedusting section, is level V.

Described three, level Four electrostatic/ultrasonic coupling dedusting section, the foundation of electrostatic field are identical as I and II；Setting is super in device End occurs for sound wave, and ultrasonic wave occurs end and connect with supersonic generator 83, establishes ultrasonic field.

Preferably, pm2.5 detectors are arranged in electrostatic/ultrasonic coupling dedusting section entrance, for detecting entry position Concentration less than pm2.5, pm2.5 detectors are connect with controller data, the controller according to the pm2.5 concentration of detection from The power of dynamic control supersonic generator 83.

If the pm2.5 concentration of detection is got higher, controller enhances the power of supersonic generator 83 automatically, if detection PM2.5 concentration be lower, then controller reduces the power of supersonic generator 83 automatically.

By above-mentioned intelligent control, the size of 83 power of supersonic generator is controlled automatically according to particle concentration, To realize the intellectualized operation of system, and energy saving requirement is may also reach up, further increases the pollutant of flue gas Removal effect.

Preferably, the third level entrance and fourth stage entrance are respectively set pm2.5 detectors, the controller according to The data of the PM2.5 detectors of third level entrance and fourth stage entrance detection independently control super in the third level and the fourth stage The size of sonic generator power.

Preferably, as shown in figure 8, plasma reactor uses line-plank frame, including ground connection pole plate 84, ceramics Plate 87, corona discharge electrode 88 and high-voltage ac power 89, ground connection pole plate 84 are grounded, and ceramic wafer 87 is covered in formation line plate on pole plate 84, Ceramic wafer 87 is used as block media, dielectric barrier discharge, while supported catalyst is formed, as catalyst carrier；The corona Pole 88 is arranged between the opposite ceramic wafer 87 of two blocks of line plates.

Preferably, high-voltage ac power 89 can be high voltage power supply 5.

The foundation of ultrasonic field is identical as the third level, the fourth stage.

Preferably, the spacing between the opposite face of opposite ceramic wafer 87 is no more than 5cm.

Preferably, the final stage plasma/ultrasonic coupling is catalyzed field, using line-plate type plasma reactor structure, Plasma is generated using dielectric barrier discharge mode.Several electrode plates of plasma reactor parallel arrangement, intermediate uniform cloth Several corona wires are set, electrode surface attaches ceramic wafer as block media and catalyst carrier.

A kind of removal methods carrying out coal-fired flue-gas pollutant using foregoing electrostatic precipitator, including following step Suddenly：

1) coal-fired flue-gas enters electrostatic precipitation section, and the particulate matter in flue gas is adsorbed in the electrostatic field of electrostatic precipitation section Dust collecting pole plate falls into the ash bucket of lower section by deashing device, is taken away by ash conveying device, and electrostatic precipitation section removes the particle in flue gas The particulate matter of object, especially PM10 or more：

2) flue gas enters electrostatic/ultrasonic coupling dedusting section from electrostatic precipitation section, and by electrostatic/ultrasonic coupling field, particle exists Fierce mechanical oscillation are done in ultrasonic field, the kinetic energy of particle increases, and the chance of particle encounter also increases, the cohesive force between particle Usually make two particles agglomerated together after an impact, so that little particle is become bulky grain, Yi Beijing by being continually colliding coalescence Electro Sorb removes, and can effectively remove the particulate matters below of PM2.5 in flue gas；

3) flue gas enters plasma/ultrasonic coupling catalysis field dedusting section from electrostatic/ultrasonic coupling dedusting section, is hindered by medium Gear electric discharge generates a large amount of plasma, including high energy particle and active material in plasma reactor；High energy particle and With the organic pollution in flue gas complicated physical-chemical reaction, degradation of organic substances occur for active material；The load of medium baffle is urged Agent plays catalytic action to the removing of organic matter；The high frequency peptizaiton of ultrasonic wave promotes organic matter and active material and catalysis The reaction of agent enhances removal effect.

The operation principle of the utility model：The utility model is transformed original electric precipitator, and wherein I and II is Conventional electric field, three, level Four be electrostatic/ultrasonic coupling field, final stage is that plasma/ultrasonic coupling is catalyzed field.Coal-fired flue-gas is into meditation Electric precipitator is adsorbed after particulate matter is charged by dust collecting pole plate in the conventional electrostatic field of I and II, is adhered to and gathers dust after electric discharge On pole plate, after deashing device is removed, the ash bucket of lower section is fallen into, particulate matter (the especially PM10 in electrostatic field in flue gas Above particulate matter) by efficient removal.By three, level Four electrostatic/ultrasonic coupling field, particle makees fierce machine in ultrasonic field Tool vibrates, and the kinetic energy of particle increases, and the chance of particle encounter also increases, and the cohesive force between particle is usually touching two particles It hits rear agglomerated together, so that little particle is become bulky grain by being continually colliding coalescence, be easily electrostatically adsorbed removing, can effectively take off Except PM2.5 particulate matters below in flue gas.The plasma of final stage contains a large amount of high energy particle and active material, oxidable drop The organic pollution in flue gas is solved, catalytic action, the dispersion of ultrasonic wave high frequency of supported catalyst, efficient removal organic contamination are cooperateed with Object.

Preferably, residual heat using device is arranged in water fog charge device front, the residual heat using device is heat pipe waste heat Utilize device.

As shown in Fig. 2,5, the residual heat using device includes heat pipe, and the heat pipe includes vertical portion 101, horizontal component 102 and VERTICAL TUBE 103, the wherein bottom end of vertical portion 101 is connected to horizontal component 102, and the horizontal component 102 is from vertical portion 101 bottom end is divided to extend away from the direction of vertical portion 101,102 lower part of the horizontal component is connected to multiple VERTICAL TUBEs 103, wherein VERTICAL TUBE 103 is the evaporation ends of heat pipe, and vertical portion 101 is the condensation end of heat pipe.The vertical portion is at least In the air passageway, the VERTICAL TUBE and horizontal component are arranged in flue 106 for part setting

The utility model heat pipe absorbs heat from flue gas in operation, by VERTICAL TUBE 103, then in VERTICAL TUBE 103 Fluid be evaporated, vertical portion is entered by horizontal component, then rejects heat to air, fluid in vertical portion It is condensed, VERTICAL TUBE 103 is entered back by the effect of gravity.

The structure of the evaporation ends by the way that heat pipe is arranged of the utility model opposite heat tube is improved, by the evaporation ends of heat pipe Farther direction is extended to, in the case where not changing the condensation end volume of heat pipe so that the endotherm area of the evaporation ends of heat pipe Increase, the heat absorption range of heat pipe can be expanded in this way, the heat of heat source distalmost end can be absorbed.Heat in compared with the existing technology Pipe evaporation ends and condensation end are consistent size, can improve 45% or more heat exchange efficiency.The volume of condensation end is reduced simultaneously And floor space so that compact-sized.

In addition, the utility model is used as the evaporation ends of heat pipe by the way that multiple VERTICAL TUBEs 103 are arranged so that each VERTICAL TUBE 103 the absorption of heat is added as independent endothermic tube one by one, also increases the endotherm area of integral heat pipe evaporation ends.

Preferably, the horizontal component 102 is flat tube structure, VERTICAL TUBE 103 is circular tube structure.It is horizontal by being arranged Part is flat tube structure, can increase the distribution of VERTICAL TUBE 103, further increase the absorption of heat.

Further preferably, horizontal component 102 is square structure.

Preferably, as shown in figure 3, the VERTICAL TUBE 103 is multiple rows of, wherein adjacent two rows are to be staggered in arrangement.Pass through It is staggered in arrangement, the caloric receptivity of heat pipe can be further increased.

Preferably, VERTICAL TUBE 103 is located at the extension of the center line of the center of circle connecting line segment of the adjacent upright pipe 103 of adjacent row On line.I.e. two closed on VERTICAL TUBE, 103 center of circle in the center of circle of VERTICAL TUBE 103 and adjacent row constitutes isosceles triangle, described perpendicular The center of circle of straight tube is located at the position of the point of isosceles triangle apex angle.

Preferably, as shown in figure 4, communicating pipe 107 is arranged between at least two adjacent VERTICAL TUBEs 103.Under study for action It was found that during vertical section is absorbed heat, it may appear that the absorption heat of the endothermic tube of different location is different, leads to VERTICAL TUBE 103 Between pressure or temperature it is different, straightened portion pipe 103 can be caused to be heated so excessively high, cause the lost of life, once one VERTICAL TUBE 103 goes wrong, and entire heat pipe may be caused the problem of can not using occur.The utility model is by largely grinding Study carefully, communicating pipe 107 is set in adjacent VERTICAL TUBE, can be in the case where the heated difference of VERTICAL TUBE lead to pressure difference, it can So that the fluid in the big VERTICAL TUBE 103 of pressure quickly flows to the small VERTICAL TUBE 103 of pressure, to keep integral pressure Equilibrium avoids hot-spot or supercooling.

Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, multiple companies are set between adjacent VERTICAL TUBE 103 Siphunculus 107.By the way that multiple communicating pipes are arranged, fluid continuous counterpressure in evaporation process of absorbing heat is enabled to, is ensured whole Pressure in a VERTICAL TUBE is balanced.

Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, constantly subtract the distance between adjacent communicating pipe 107 It is small.This purpose is in order to which more communicating pipes are arranged, because of flowing up with fluid, fluid is constantly heated, with stream Body is constantly heated, heated more and more uneven in different thermal-collecting tubes, therefore by above-mentioned setting, can ensure in fluid stream Reach pressure equilibrium during dynamic as soon as possible.

Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, constantly reduce the distance between adjacent communicating pipe Amplitude it is increasing.It is found through experiments that, above-mentioned setting, can ensure more excellent in process fluid flow to reach pressure faster Power is balanced.This is also the best mode of communicating got by largely studying pressure changes in distribution rule.

Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, the diameter of communicating pipe 107 is continuously increased.This mesh Be in order to be arranged ensure bigger connection area, because of flowing up with fluid, fluid is constantly heated, with fluid It is continuous heated, it is heated more and more uneven in different thermal-collecting tubes, therefore by above-mentioned setting, can ensure to flow in fluid Reach pressure equilibrium as soon as possible in the process.

Preferably, from 103 lower part of VERTICAL TUBE to 103 top of VERTICAL TUBE, the ever-increasing amplitude of diameter of communicating pipe 107 It is increasing.It is found through experiments that, above-mentioned setting, can ensure that more excellent in process fluid flow to reach pressure equal faster Weighing apparatus.This is also the best mode of communicating got by largely studying pressure changes in distribution rule.

Found by numerical simulation and experiment, the distance between VERTICAL TUBE 103, including the distance of same row and adjacent row it Between distance cannot be too small, it is too small that heat pipe distribution can be caused excessive, cause the caloric receptivity of every heat pipe insufficient, crossing conference leads to heat Pipe distribution is very little, causes heat pipe to overheat, therefore the application sums up by a large amount of numerical simulation and experiment and carrys out heat pipe VERTICAL TUBE The distribution of the optimizations of 103 distributions so that heat pipe can neither recept the caloric deficiency, and it is excessive to recept the caloric.

As shown in fig. 6, the outer diameter of VERTICAL TUBE 103 is d, the distance between adjacent 103 center of circle of VERTICAL TUBE of same row is The apex angle that L, the center of circle of VERTICAL TUBE 103 and two closed on VERTICAL TUBE, 103 center of circle of adjacent row constitute isosceles triangle is A, then Meet claimed below：

Sin (A)=a-b*Ln (d/L), wherein Ln are logarithmic functions, and a, b are parameters, meet following require：

0.095<a<0.105,0.29<b<0.31；

Further preferably, the a=0.1016, b=0.3043.

Preferably, tapering into d/L, a is increasing, and b is increasing.

Preferably, 15 °<A<80°.

Further preferably, 20 °<A<40°.

0.1<d/L<0.7, further preferably, 0.2<d/L<0.5.

Above-mentioned empirical equation is obtained by a large amount of numerical simulations and experiment, the structure obtained by above-mentioned relation formula, energy It is enough to realize the heat pipe structure optimized, and pass through verification experimental verification, error is substantially within 3%.

The heat absorption capacity 900-1100W of heat pipe, further preferably 1000W；

90-110 degrees Celsius of the temperature of flue gas, further preferably 100 DEG C.

Heat pipe horizontal component shown in Fig. 2 is preferably square, the length of side be 400-600 millimeters, further preferably 500 Millimeter.

103 outside diameter d of VERTICAL TUBE is 9-12 millimeters, further preferably 11mm.

Preferably, as shown in figure 3, including two heat pipes, the horizontal component 102 of described two heat pipes in the system It is respectively facing opposite direction and extends by the way that two symmetrical heat pipes are arranged, can absorb heat in different directions, meet heat exchange Demand.

Although the utility model has been disclosed in the preferred embodiments as above, the utility model is not limited to this.Any Field technology personnel can make various changes or modifications, therefore this practicality without departing from the spirit and scope of the utility model Novel protection domain should be subject to claim limited range.

Claims (10)

1. a kind of water fog charge coupling particle modified synergistic electrostatic precipitation system of coordinated desulfurization wastewater treatment, the system comprises Water fog charge device and electrostatic precipitator, the water fog charge device are installed on electrostatic precipitator and enter on the flue in epistome, institute Water fog charge device connection desulfurization wastewater scratch pool is stated, atomizer, atomizer rear portion installation electricity is arranged in water fog charge device Halo, corona ring connect high voltage power supply；Flue gas first passes around water fog charge device, and desulfurization wastewater is from scratch pool through twin Nozzle forms spraying, charged after the corona ring powered by high voltage power supply, is sufficiently mixed later with flue gas, is formed and contains wet granular； Then, a dry process is undergone containing wet granular, moisture gradually evaporates, and charge is gradually shifted from drop to particle, makes part Dust particles are charged.

2. dust pelletizing system as described in claim 1, which is characterized in that further include heater, the desulfurization wastewater is into water It is preheated by heater before mist charge device.

3. dust pelletizing system as claimed in claim 2, which is characterized in that described pre- the system comprises granule modified dose of storage tank Granule modified dosage form resulting mixture is added by granule modified dose of storage tank in desulfurization wastewater after heat, enters back into water fog charge device.

4. dust pelletizing system as claimed in claim 2, which is characterized in that the heater is arranged in flue.

5. dust pelletizing system as described in claim 1, which is characterized in that the electrostatic precipitator include electrostatic precipitation section, electrostatic/ Ultrasonic coupling dedusting section and plasma/ultrasonic coupling are catalyzed field dedusting section, and wherein electrostatic precipitation section is arranged in front, is removed in electrostatic Dust collecting pole plate is set inside dirt section and generates electrostatic field, electrostatic/ultrasonic coupling dedusting section is arranged behind electrostatic precipitation section, quiet It is provided with dust collecting pole plate in electricity/ultrasonic coupling dedusting section and end occurs for ultrasonic wave, and electrostatic field is generated in inside, ultrasonic wave occurs It holds and is connect with external supersonic generator；Plasma/ultrasonic coupling catalysis field dedusting section is arranged in electrostatic/ultrasonic coupling dedusting Below, end, ultrasonic wave hair occur section for setting plasma reactor and ultrasonic wave in plasma/ultrasonic coupling catalysis field dedusting section It causes trouble and is connect with external supersonic generator.

6. system as claimed in claim 5, which is characterized in that the electrostatic precipitation section is two-stage, is the first order and the respectively Two level；The electrostatic/ultrasonic coupling dedusting section is two-stage, is the third level and the fourth stage respectively, and plasma/ultrasonic coupling is catalyzed field Dedusting section is level-one, is level V.

7. system as claimed in claim 5, which is characterized in that the dust collecting pole plate is mutually parallel；Between dust collecting pole plate uniformly Arrange several corona discharge electrodes；Dust collecting pole plate surface is equipped with deashing device.

8. system as claimed in claim 5, which is characterized in that plasma reactor uses line-plank frame, including ground connection Pole plate, ceramic wafer, corona discharge electrode and high voltage power supply, earthing pole plate earthing, ceramic wafer are covered in formation line plate on pole plate, and ceramic wafer is made For block media, dielectric barrier discharge, while supported catalyst are formed, as catalyst carrier；The corona discharge electrode is arranged two Between the opposite ceramic wafer of block line plate.

9. dust pelletizing system as described in claim 1, which is characterized in that water fog charge device front is arranged UTILIZATION OF VESIDUAL HEAT IN and fills It sets, the residual heat using device is heat pipe, and the heat pipe includes vertical portion, horizontal component and VERTICAL TUBE, wherein vertical portion Bottom end be connected to horizontal component, the horizontal component from the bottom end of vertical portion away from vertical portion direction extend, institute It states horizontal component lower part and is connected to multiple VERTICAL TUBEs, the VERTICAL TUBE is arranged in flue, and vertical portion is arranged outside flue.

10. dust pelletizing system as claimed in claim 9, which is characterized in that the horizontal component is flat tube structure, and VERTICAL TUBE is Circular tube structure, horizontal component are square structure；The VERTICAL TUBE is multiple rows of, wherein adjacent two rows are to be staggered in arrangement；VERTICAL TUBE The center of circle and adjacent row two closed on the VERTICAL TUBE center of circle constitute isosceles triangle, the center of circle of the VERTICAL TUBE is located at isosceles three The position of the point of angular apex angle.