CN105797524A - Heteropolar electric charge fogdrop coalescence dust-removing device and method thereof - Google Patents

Heteropolar electric charge fogdrop coalescence dust-removing device and method thereof Download PDF

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Publication number
CN105797524A
CN105797524A CN201610292873.3A CN201610292873A CN105797524A CN 105797524 A CN105797524 A CN 105797524A CN 201610292873 A CN201610292873 A CN 201610292873A CN 105797524 A CN105797524 A CN 105797524A
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dust
electrostatic atomization
positive
cylinder
negative
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CN201610292873.3A
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CN105797524B (en
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王贞涛
夏磊
朱忠辉
郭天宇
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江苏大学
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours

Abstract

The invention discloses a heteropolar electric charge fogdrop coalescence dust-removing device capable of removing tiny dust, especially, PM2.5, in smoke, and a method thereof. Two draught fans are respectively used for feeding dust-containing gas into an upper chamber; dust-containing gas dust and dust-containing gas flow enter into two pre-processing chambers and then downward pass through two filter screens, respectively; the filtered dust and gas flow downward enter into a negative electrostatic atomization area and a positive electrostatic atomization area, respectively; two capillary atomizing nozzles can form stable conical jet flow atomization in the negative electrostatic atomization area and the positive electrostatic atomization area under the actions of a negative corona discharge electrode and a positive corona discharge electrode correspondingly and can generate two heteropolar fogdrops or fogdrop groups in the negative electrostatic atomization area and the positive electrostatic atomization area so as to absorb tiny dust of the dust-containing gas; therefore, the efficiency of removing tiny dust is increased. The fogdrops absorbing dust can finish coalescence, so that the fogdrop scale is increased, the sedimentation of the fogdrops is facilitated, and the effective removal of ultra tiny particulate matter is realized.

Description

A kind of heteropolarity charged droplets coalescence dust arrester and method
Technical field
The present invention relates to a kind of dust arrester, specifically the device of fine solid particle, particularly PM2.5 in elimination flue gas.
Background technology
Haze is a kind of atmospheric pollution state, is the generalized representation to suspended particulate substance content overproofs various in air, the especially PM2.5(equivalent aerodynamic diameter particulate matter less than or equal to 2.5 microns) it is considered as " arch-criminal " that cause haze weather.Haze is mainly made up of sulfur dioxide, nitrogen oxides and inhalable particles etc., and they and fog combine, and is a kind of pollutant, is again the carrier of the noxious substance such as heavy metal, polycyclic aromatic hydrocarbon.
The method effectively removing dust at present is a lot, and can remove the particulate matter of more than 99%, but the elimination of PM2.5 is still suffered from certain difficulty.At present to the elimination of fine particulates in flue dust, mainly there is following several method: (1) electrostatic precipitation.Conventional is electrostatic precipitator, utilizes high voltage electric field to make flue gas ionize, and the dust in air-flow is charged, with flow separation under electric field action.Negative pole is made up of the plain conductor of different section shape, is sparking electrode.Positive pole is made up of the metallic plate of different geometries, is collecting electrode.The performance of electrostatic precipitator is by the impact of the factors such as dust characteristic, equipment structure and flue gas flow rate.The ratio resistance of dust is the index evaluating electric conductivity, and efficiency of dust collection is had direct impact by it.More too low than resistance, grit is difficult to be maintained on collecting electrode, causes it to return to air-flow.Ratio too high in resistance, the grit electric charge arriving collecting electrode is not easily released, and forms voltage gradient and can produce partial breakdown and electric discharge phenomena between knoisphere.These situations all can cause efficiency of dust collection to decline.(2) pottery dedusting.Conventional is ceramic filter, and the commonly used high density material of its filter element, ceramic filter element mainly has bar type, tubular type, cross-flow three kinds.Dusty gas enters filter from short tunnel ends, then after each Channel filtration, enter the cleaning gas end that passage is longer, one end of cleaning gas passage is shut, and makes cleaning gas flow into cleaning gas collection case, and the grit trapped in short passage is regularly removed by reverse impulse air-flow.It is good that dust in high-temperature fuel gas is filtered effectiveness comparison by ceramic filter, but can not be widely used.(3) wet dust removal.Conventional is wet scrubber, and dusty gas along being introduced tangentially into by cylinder bottom, is rotated and rises, and grit is separated by centrifugal action, throws to cylinder inboard wall, and the water film flowed by cylinder inboard wall adsorbs, and with water Liu Dao bottom cone, releases through dust-exhausting port.The formation of water film is by the several nozzle in the top being arranged in cylinder, is tangentially sprayed onto wall by suitable for water.So, cover lid layer all the time at cylinder inboard wall and rotate the ultra-thin moisture film flowed downward, reach to improve the purpose of dust removing effects.This wet scrubber simple in construction, metal consumption is little, and water consumption is little.Its shortcoming is highly relatively big, difficult arrangement, and finds there is water phenomenon in actual motion.
A kind of bipolar corona discharge soot coalescence electro dust removing method and equipment disclosed in the document of China Patent No. 200410066936.0, by the ultrafine dirt particle in ash-laden gas by positive and negative corona discharge region, after making it bring positive and negative charge, mutual coalescence is assembled becomes larger particles, then inputs electric cleaner and carry out electric precipitation.The enforcement device of this patented technology is extremely complex, implements difficulty bigger.But this equipment easily producing knot ash, is unfavorable for lasting corona discharge after adopting corona electrode electric discharge.And dry dust removal is unfavorable for the collection of dust, it is easy to cause the pollution again of air.A kind of charged water mist synergy electrostatic dust removing method and device disclosed in the document of China Patent No. 201010105584.0, water fog charge device is combined with electrostatic precipitator, by water smoke, flue gas conditioning, charged droplet containing agglomerator are promoted dust granules to reunite and improve the charging characteristic of dust granules, raising electrostatic precipitator removal efficiency.But this device carries out post processing after water smoke not being adsorbed flue dust in dust removal process, and when spraying in pipeline, droplet can generate black dirt after being combined with flue dust and get rusty easily.A kind of high pressure charged water spray coagulation formula air cleaner disclosed in the document of China Patent No. 201510158477.7, electric control gear electrically connects with condensing unit, HV generator, automatic water-replenishing device respectively, through each device cooperating syringe to reach the purpose of dedusting.But this device box is internal extremely complex, can there is certain potential safety hazard in internal HV generator, and the later stage internal system is carried out cleaning can be more complicated.
Summary of the invention
The invention aims to the problems overcoming existing dust collection method and equipment to exist, it is provided that a kind of heteropolarity charged droplets coalescence dust arrester and method, realize also being avoided that while ultra-thin micro-particle effectively removes the formation of secondary dust.
The present invention a kind of heteropolarity charged droplets coalescence dust arrester the technical scheme is that the cylinder with a upper end closed, cylinder lower end connects waste liquid collecting box, inner barrel is provided with the left side of sustained height position, right side drainage screen, the underface of two drainage screens keeps at a certain distance away and arranges porous ball filter course and grit filter course, porous ball filter course closely overlays on grit filter course, two drainage screens, inner barrel is divided into by porous ball filter course and grit filter course, in, lower three chambers, upper chamber two is then provided with two air intake passages of the layout substantially symmetrical about its central axis along cylinder, equipped with an air-introduced machine in one air intake passage;Middle between two air-introduced machines is provided with one piece of dividing plate, and cylinder upper chamber is divided into left pretreatment chamber and right pretreatment chamber by dividing plate, and the bottom of dividing plate is connected between two drainage screens, and the remainder of dividing plate and cylinder inboard wall are tightly connected;The sidewall of cylinder middle chamber connects along body centre axial symmetry and from left and right two the capillary tube atomizers stretching into cylinder outside cylinder;The front, capillary tube atomizer spray outlet place in left side forms negative electrostatic atomization district, and the front, capillary tube atomizer spray outlet place on right side forms positive electrostatic atomization district, and the underface place in positive electrostatic atomization district and negative electrostatic atomization district forms atomization coalescence district;Left side capillary tube atomizer is connected with the negative corona discharge electrode being connected with negative high voltage electrostatic generator, right side capillary tube atomizer is connected with the positive corona discharge electrode being connected with positive high voltage electrostatic generator, and positive corona discharge electrode and negative corona discharge electrode are all connected with the sidewall of cylinder middle chamber.
The dedusting of the present invention a kind of heteropolarity charged droplets coalescence dust arrester employed technical scheme comprise that and comprises the following steps:
Dusty gas is conveyed in upper chamber by A, two air-introduced machines respectively, under the effect of dividing plate, dusty gas dust, dust-contained airflow respectively enter in Liang Ge pretreatment chamber, down through two drainage screens, plant fiber dust in dusty gas and bigger dust granules are filtered out by two drainage screens, respectively enter negative electrostatic atomization district and positive electrostatic atomization district under the gentle flow direction of dust after filtration;
B, two capillary tube atomizers are under the effect of corresponding negative corona discharge electrode and positive corona discharge electrode, stable cone jet atomization is formed in negative electrostatic atomization district and positive electrostatic atomization district, produce two kinds of droplets with opposed polarity respectively in negative electrostatic atomization district and positive electrostatic atomization district or droplet group adsorbs the fine solid particle of dusty gas, and under the air-flow effect with gravity, enter atomization coalescence district, realize the coalescence of positive and negative charged droplets, form the drop that yardstick is bigger;
The dusty gas not adsorbed by drop, through porous ball filter course and grit filter course, is carried out adsorbing and purifies, being collected in waste liquid collecting box after drips by the drop after C, coalescence.
The present invention has advantages in that after adopting technique scheme
1. adopt the droplet dust adsorption of opposed polarity, produce opposed polarity charged drop by both positive and negative electrostatic atomization and adsorb ultra-thin micro-particle respectively, avoid dust self polarity impact on absorption process in unipolarity elimination dust process, add the removal efficiency of fine solid particle.
2. the drop after adsorption of dust completes coalescence, increases droplet yardstick, be conducive to the sedimentation of drop, it is to avoid the fine solid particle that droplet evaporation causes produces again, adds overall assimilation effect, thus realizing effective elimination of ultra-thin micro-particle.
3., by controlling voltage, process can be formed during electrostatic atomization the uniform droplet of yardstick and suitable carried charge, improve the removal efficiency of superfine dust.
4. moisture film is contained on the packing material surface in porous ball filter course and grit filter course, it is possible to dust in elimination air-flow further, thus improving the removal efficiency of dust.
5. adopt corona discharge to achieve formation voltolising effect between point electrode and capillary nozzle, it is possible to effectively to kill antibacterial in air-flow.
6. the different in nature drop after dust adsorption completes coalescence in the common factor district of heteropolarity dispersed jet, and completes coalescence in dropping process further, is conducive to improving coalescence efficiency and the rate of settling.
7. being conducive to adsorption of dust better after water fog charge, the rapid evaporation can being prevented effectively from because droplet is too little in flue gas after heteropolarity drop coalescence, thus avoiding the formation of secondary dust.
Accompanying drawing explanation
Fig. 1 is the structural representation of heteropolarity charged droplets coalescence dust arrester of the present invention;
Fig. 2 is A-A profile in Fig. 1;
In Fig. 1: 1. left air-introduced machine;2. drainage screen;3. negative electrostatic atomization district;4. left liquid supply box;5. capillary tube atomizer;6. negative high voltage electrostatic generator;7. negative corona discharge electrode;8. porous ball filter course;9. grit filter course;10. waste liquid collecting box;11. coalescence district;12. fixed support;13. positive corona discharge electrode;14. positive high voltage electrostatic generator;15. capillary tube atomizer;16. right liquid supply box;17. positive electrostatic atomization district;18. right air-introduced machine;19. drainage screen;20. pretreatment chamber;21. dividing plate;22. pretreatment chamber;23. cylinder.
Detailed description of the invention
Referring to Fig. 1, one heteropolarity charged droplets coalescence fume dust remover of the present invention, there is a cylinder 23, the upper end closed of cylinder 23, lower end connects waste liquid collecting box 10, and waste liquid collecting box 10 is internal with cylinder 23 to be connected.The internal drainage screen 2,19 being provided with two left sides being positioned at sustained height position and right side of cylinder 23, two drainage screens 2,19, underface between to be separated with certain distance be porous ball filter course 8 and grit filter course 9, porous ball filter course 8 and grit filter course about 9 are closely stacked together, and the top of porous ball filter course 8 stacks grit filter course 9.So, two drainage screens 2,19, porous ball filter course 8 and grit filter course 9 are divided into three, upper, middle and lower chamber by internal for cylinder 23.Upper chamber two is then provided with two air intake passages of the layout substantially symmetrical about its central axis along cylinder 23, the left and right air intake passage in Fig. 1, installs an air-introduced machine in each air intake passage, is the air-introduced machine 18 on the air-introduced machine 1 in left side and right side respectively.Dusty gas is transported in cylinder 23 by two air-introduced machines 1,18 by air intake passage.
Middle between two air-introduced machines 1,18, central axis within cylinder 23 is provided with one piece of dividing plate 21, shown in Figure 2, two strands of dusty gases that two air-introduced machines 1,18 are introduced by dividing plate 21 are separately, dividing plate 21 makes cylinder 23 upper chamber be divided into Liang Ge pretreatment chamber, is pretreatment chamber 22 and the pretreatment chamber 20 on right side in left side respectively.The bottom of dividing plate 21 is connected between two drainage screens 2,19, and the remainder of dividing plate 21 is connected with cylinder 23 inner wall sealing.Left side, right side Liang Ge pretreatment chamber 22,20 connected with the middle chamber of lower section by the drainage screen 2,19 in corresponding left side, right side.The drainage screen 2 in left side and the drainage screen 19 on right side are each through support connector drum 23 inwall removably, it is possible to regular dismounting is carried out.
On the sidewall of the middle chamber of cylinder 23, namely it is positioned on the sidewall of drainage screen and porous ball filter course 8 and connects substantially symmetrical about its central axis two the capillary tube atomizer 5,15 along cylinder 23, two capillary tube atomizers 5,15 stretch in cylinder 23 middle chamber from cylinder 23 is outside, two capillary tube atomizers 5,15 are the capillary tube atomizer 15 on the capillary tube atomizer 5 in left side and right side respectively, and two capillary tube atomizers 5,15 are positioned at sustained height position.The internal diameter of two capillary tube atomizers 5,15 is all 0.6 ~ 1.6mm, and being can regulate in the scope of-30 ° ~ 30 ° in the horizontal direction, to adapt to different operating conditions.
Capillary tube atomizer 15 on right side be arranged below positive corona discharge electrode 13, the capillary tube atomizer 5 in left side be arranged below negative corona discharge electrode 7.Positive corona discharge electrode 13 and negative corona discharge electrode 7 are also all connected on the sidewall of middle chamber of cylinder 23 respectively.In Fig. 1, the lower section of left side capillary tube atomizer 5 is negative corona discharge electrode 7, and the lower section of right side capillary tube atomizer 15 is positive corona discharge electrode 13.Between positive corona discharge electrode 13, negative corona discharge electrode 7 and cylinder 23 sidewall, Ins. ulative material is installed, in case leak-stopping is electric.
Two liquid supply box 4,16 are had, two equal ground connection of liquid supply box 4,16 outside cylinder 23.Two liquid supply box 4,16 respectively connect a capillary tube atomizer, and each capillary tube atomizer 5,15 is respectively connected with corresponding liquid supply box 4,16 by colloid pipeline, respectively arranges choke valve and effusion meter, to control the liquid-gas ratio in running on each pipeline.Two liquid supply box 4,16 are the liquid supply box 16 on the liquid supply box 4 in left side and right side respectively, and the liquid supply box 4 in left side connects the capillary tube atomizer 5 in left side, and the liquid supply box 16 on right side connects the capillary tube atomizer 15 on right side.Outside cylinder 23, also have two HV generators 6,14, be negative high voltage electrostatic generator 6 and the positive high voltage electrostatic generator 14 on right side in left side respectively.Negative high voltage electrostatic generator 6 connects negative corona discharge electrode 7 by wire, and positive high voltage electrostatic generator 14 connects positive corona discharge electrode 13 by wire.
In the middle chamber of cylinder 23, the front, exit of the capillary tube atomizer spraying 5 in left side forms negative electrostatic atomization district 3, the front, exit of the capillary tube atomizer spraying 15 on right side forms positive electrostatic atomization district 17, forms atomization coalescence district 11 at the underface place in positive electrostatic atomization district 17 and negative electrostatic atomization district 3.The underface in atomization coalescence district 11 is porous ball filter course 8 and grit filter course 9, and porous ball filter course 8 and grit filter course 9 are fixedly mounted on cylinder 23 inwall by fixed support 12.
Porous ball filter course 8 and grit filter course 9 play double medium filtration effect, and the hollow beads having diameter to be 10.0mm in the porous ball filter course 8 on upper strata is filled;The grit that implant is 1.0 ~ 2.0mm particle diameter in the grit filter course 9 of lower floor, grit filter course 9 is very thin, and thickness is about 8.0 ~ 10.0mm.The middle chamber of cylinder 23 is communicated with the lower chambers of cylinder 23 by porous ball filter course 8 and grit filter course 9.The structure of lower chambers is semi-spherical shape, connects the waste collection storage tank 10 of outside immediately below lower chambers, and waste liquid enters waste collection storage tank 10 through lower chambers, carries out waste collection.
During device work, open air-introduced machine 1,18, liquid supply box 4,16, positive high voltage electrostatic generator 14, negative high voltage electrostatic generator 6 and capillary tube atomizer 5,15 and the choke valve on corresponding pipeline and effusion meter.Dusty gas is conveyed in upper chamber respectively by two air-introduced machines 1,18 with the speed that speed is 0.8 ~ 1.0m/s.Under the effect of middle dividing plate 21, dusty gas dust, dust-contained airflow enter in pretreatment chamber 20,22, then downward through drainage screen 2,19, the plant fiber dust in dusty gas and bigger dust granules are filtered out by drainage screen 2,19, carry out pretreatment elimination.The air-flow of the fibre-bearing dust after filtration enters the negative electrostatic atomization district 3 immediately below drainage screen 2,19 and positive electrostatic atomization district 17.
Capillary tube atomizer 5,15 is under the effect of corresponding negative corona discharge electrode 7 and positive corona discharge electrode 13, stable cone jet atomization is formed in negative electrostatic atomization district 3 and positive electrostatic atomization district 17, Charged Droplet size controlling is at 15 ~ 30 μm, and realize liquid-gas ratio by effusion meter and control 0.1 ~ 0.3%, liquid-gas ratio refers to the drop of atomization formation and the volume ratio of waste gas, i.e. droplet size: exhaust gas volume=0.1 ~ 0.3:100.Positive corona discharge electrode 13 and negative corona discharge electrode 7 make droplet charged by the mode of corona discharge, produce two kinds of droplets with opposed polarity or droplet group respectively in negative electrostatic atomization district 3 and positive electrostatic atomization district 17, and the size controlling of droplet is at 20 ~ 50 μm.Positive and negative charged droplets adsorbs the fine solid particle of the dusty gas after drainage screen 2,19 respectively in negative electrostatic atomization district 3 and positive electrostatic atomization district 17, and under the air-flow effect with gravity, enter atomization coalescence district 11, realize the coalescence (now charged droplets dust-laden) of positive and negative charged droplets, form the drop that yardstick is bigger.In addition, due to dust naturally charged reason with polarity, dust not adsorbed in negative electrostatic atomization district 3 and positive electrostatic atomization district 17, by being adsorbed from the charged droplets of opposite polarity electrostatic atomization indoor generation in atomization coalescence district 11, thus improve the overall arresting efficiency of fine solid particle.Drop after coalescence is then through the porous ball filter course 8 below atomization coalescence district 11 and grit filter course 9, and the dusty gas not adsorbed by drop can be carried out further absorption and purify by double filter layers, it is achieved the further elimination of dust.Finally, dust-contained airflow is cleaned, and is collected in the waste liquid collecting box 10 of bottom after drips.

Claims (6)

1. a heteropolarity charged droplets coalescence dust arrester, there is the cylinder (23) of a upper end closed, cylinder (23) lower end connects waste liquid collecting box (10), it is characterized in that: the internal left side being provided with sustained height position of cylinder (23), right side drainage screen (2, 19), two drainage screens (2, 19) underface keeps at a certain distance away and arranges porous ball filter course (8) and grit filter course (9), porous ball filter course (8) closely overlays on grit filter course (9), two drainage screens (2, 19), porous ball filter course (8) and grit filter course (9) are divided into internal for cylinder (23), in, lower three chambers, upper chamber two is then provided with two air intake passages of layout substantially symmetrical about its central axis along cylinder (23), equipped with an air-introduced machine in each air intake passage;Middle between two air-introduced machines (1,18) is provided with one piece of dividing plate (21), cylinder (23) upper chamber is divided into left pretreatment chamber (22) and right pretreatment chamber (20) by dividing plate (21), the bottom of dividing plate (21) is connected between two drainage screens (2,19), and the remainder of dividing plate (21) is connected with cylinder (23) inner wall sealing;The sidewall of cylinder (23) middle chamber connects left and right two capillary tube atomizers (5,15) that are substantially symmetrical about its central axis along cylinder (23) and that stretch into cylinder (23) from cylinder (23) outside;Capillary tube atomizer spraying (5) front, exit in left side forms negative electrostatic atomization district (3), capillary tube atomizer spraying (15) front, exit on right side forms place immediately below positive electrostatic atomization district (17), positive electrostatic atomization district (17) and negative electrostatic atomization district (3) and forms atomization coalescence district (11);Left side capillary tube atomizer (5) is connected with the negative corona discharge electrode (7) being connected with negative high voltage electrostatic generator (6), right side capillary tube atomizer (15) is connected with the positive corona discharge electrode (13) being connected with positive high voltage electrostatic generator (14), and positive corona discharge electrode (13) and negative corona discharge electrode (7) are all connected with the sidewall of cylinder (23) middle chamber.
2. a kind of heteropolarity charged droplets coalescence dust arrester according to claim 1, it is characterized in that: described porous ball filter course (8) is provided with the hollow beads that diameter is 10.0mm, being provided with the grit implant that particle diameter is 1.0 ~ 2.0mm in described grit filter course (9), the thickness up and down of grit filter course (9) is 8.0 ~ 10.0mm.
3. a kind of heteropolarity charged droplets coalescence dust arrester according to claim 1, is characterized in that: two drainage screens (2,19) are each through support detachable connector drum (23) inwall.
4. a kind of heteropolarity charged droplets coalescence dust arrester according to claim 1, is characterized in that: the internal diameter of two capillary tube atomizers (5,15) is all 0.6 ~ 1.6mm, adjustable in scope in-30 ° ~ 30 ° in the horizontal direction.
5. a dust collection method for heteropolarity charged droplets coalescence dust arrester as claimed in claim 1, is characterized in that comprising the following steps:
Dusty gas is conveyed in upper chamber by A, two air-introduced machines (1,18) respectively, under the effect of dividing plate (21), dusty gas dust, dust-contained airflow respectively enter in Liang Ge pretreatment chamber (20,22), down through two drainage screens (2,19), the plant fiber dust in dusty gas and bigger dust granules are filtered out, under the gentle flow direction of dust after filtration, respectively enter negative electrostatic atomization district (3) and positive electrostatic atomization district (17);
B, two capillary tube atomizers (5,15) are under the effect of corresponding negative corona discharge electrode (7) and positive corona discharge electrode (13), stable cone jet atomization is formed negative electrostatic atomization district (3) and positive electrostatic atomization district (17), two kinds of droplets with opposed polarity or droplet group is produced to adsorb the fine solid particle of dusty gas respectively negative electrostatic atomization district (3) and positive electrostatic atomization district (17), and under the air-flow effect with gravity, enter atomization coalescence district (11), realize the coalescence of positive and negative charged droplets, form the drop that yardstick is bigger;
The dusty gas not adsorbed by drop, through porous ball filter course (8) and grit filter course (9), is carried out adsorbing and purifies, being collected in waste liquid collecting box (10) after drips by the drop after C, coalescence.
6. dust collection method according to claim 1, it is characterized in that: dusty gas is conveyed in upper chamber with the speed of 0.8 ~ 1.0m/s by two air-introduced machines (1,18), and the Charged Droplet particle diameter in negative electrostatic atomization district (3) and positive electrostatic atomization district (17) is 15 ~ 30 μm.
CN201610292873.3A 2016-05-06 2016-05-06 A kind of heteropolarity charged droplets coalescence dust arrester and method CN105797524B (en)

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Publication number Priority date Publication date Assignee Title
CN109569162A (en) * 2018-12-27 2019-04-05 吴冬梅 A kind of environmental protection room air displacement apparatus
CN110000142A (en) * 2019-04-30 2019-07-12 云谷(固安)科技有限公司 Mask plate cleaning device and method
CN110496704A (en) * 2019-08-06 2019-11-26 西安交通大学 A kind of fine particle agglomeration device of bipolar atomization pre electrified

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CN104437068A (en) * 2014-11-11 2015-03-25 南京中电环保科技有限公司 Efficient wet desulfurization dust removal system and method
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JPH02218412A (en) * 1988-11-02 1990-08-31 Mitsubishi Heavy Ind Ltd Production of clean gas
CN102430478A (en) * 2011-08-26 2012-05-02 浙江菲达脱硫工程有限公司 Device and method for removing PM 2.5 from smoke
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109569162A (en) * 2018-12-27 2019-04-05 吴冬梅 A kind of environmental protection room air displacement apparatus
CN110000142A (en) * 2019-04-30 2019-07-12 云谷(固安)科技有限公司 Mask plate cleaning device and method
CN110496704A (en) * 2019-08-06 2019-11-26 西安交通大学 A kind of fine particle agglomeration device of bipolar atomization pre electrified

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