CN110496707A - A kind of electrostatic precipitator of band coulomb lens anode - Google Patents

A kind of electrostatic precipitator of band coulomb lens anode Download PDF

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Publication number
CN110496707A
CN110496707A CN201910882116.5A CN201910882116A CN110496707A CN 110496707 A CN110496707 A CN 110496707A CN 201910882116 A CN201910882116 A CN 201910882116A CN 110496707 A CN110496707 A CN 110496707A
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CN
China
Prior art keywords
coulomb
anode
lens
electrostatic precipitator
plate
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910882116.5A
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Chinese (zh)
Inventor
谢友金
连天华
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Xiamen Lvyang Environmental Technology Ltd By Share Ltd
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Xiamen Lvyang Environmental Technology Ltd By Share Ltd
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Priority to CN201910882116.5A priority Critical patent/CN110496707A/en
Publication of CN110496707A publication Critical patent/CN110496707A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02Plant or installations having external electricity supply
    • B03C3/04Plant or installations having external electricity supply dry type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/45Collecting-electrodes
    • B03C3/47Collecting-electrodes flat, e.g. plates, discs, gratings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/74Cleaning the electrodes
    • B03C3/76Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/74Cleaning the electrodes
    • B03C3/76Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
    • B03C3/765Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact with electromagnetic rappers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electrostatic Separation (AREA)

Abstract

The present invention relates to a kind of electrostatic precipitator of band coulomb lens anode, it may include shell and is arranged in intracorporal at least one coulomb of lens field of the shell, the coulomb lens field in flue gas direction of advance replace compartment of terrain be disposed with multiple row cathode and coulomb lens anode, channel between two neighboring coulomb lens anode is flue gas circulation road, wherein, the cavity that the coulomb lens anode has a surrounding relatively closed, the cavity lower end is connected with dust ash bucket, dust in the flue gas circulation road by the effect of gas ionization and it is charged, Charged is become trapped in the cavity under the action of electric field Coulomb force, and further coalescence sedimentation or rapping drop into the dust ash bucket.The present invention can be realized being completely separated for air-flow and dirt stream, effectively prevents rapping reentrainment of dust, greatly improves efficiency of dust collection, persistently meet minimum discharge.

Description

A kind of electrostatic precipitator of band coulomb lens anode
Technical field
The invention belongs to technical field of electrostatic dust collection, more particularly to a kind of minimum discharge with the quiet of coulomb lens anode Electric precipitator.
Background technique
High-voltage electrostatic dust separator is a kind of device that dust in trapping flue gas is carried out with electrostatic depuration method, has efficiency of dust collection The advantages that height, system resistance is low, reliability and durability is in all dedusting technologies using most common treating flour dust technology.Utilize height Suction-operated of the piezoelectric field to Charged, the deduster that dust is separated from dusty gas.I.e. in high voltage electric field, Make the dust being suspended in dusty gas by gas ionization effect and charged, effect of the Charged in electric field Coulomb force Under, it to opposite polarity electrode movement, and adsorbs on the electrode, by rapping, brushes etc. it to be made to fall off from electrode surface, in weight The deduster of ash bucket is fallen under the action of power.But since active service electric precipitator generallys use closed C480 anode plate, flue gas powder It is adsorbed on C480 anode plate surface after dirt is charged, still resides in exhaust gases passes, as shown in fig. 7, when vibration dust-cleaning, from pole plate The dust that surface falls off returns to exhaust gases passes again, is swept along by air-flow and escapes into rear class electric field or electric precipitation outlet, generates vibration Reentrainment of dust is beaten, moment discharge beyond standards is caused, influences efficiency of dust collection, be unable to satisfy increasingly strict new environmental requirement.
Summary of the invention
The present invention is intended to provide a kind of electrostatic precipitator of minimum discharge, to solve the above problems.For this purpose, the present invention uses Specific technical solution it is as follows:
A kind of electrostatic precipitator of band coulomb lens anode, the electrostatic precipitator include shell and are arranged in the shell At least one interior coulomb lens field, the coulomb lens field in flue gas direction of advance replace compartment of terrain be disposed with Multiple row cathode and coulomb lens anode, the channel between two neighboring coulomb lens anode are flue gas circulation road, wherein the library The cavity that logical sequence lens anode has a surrounding relatively closed, the cavity lower end are connected with dust ash bucket, the flue gas circulation Dust in road by the effect of gas ionization and it is charged, Charged become trapped in the sky under the action of electric field Coulomb force In chamber, and further coalescence sedimentation or rapping drop into the dust ash bucket.
In one embodiment, the coulomb lens anode of two sides is by housing sidewall, the stifled flowing plate of an anode arranged plate and both ends It constitutes, and intermediate coulomb lens anode is made of the stifled flowing plate at the anode arranged plate of two sides and both ends.
In one embodiment, the width of the cavity is 100-300mm, it is therefore preferable to 150mm.
In one embodiment, the channel width between the two neighboring coulomb lens anode is 300-600mm, preferably 450mm。
In one embodiment, the inclined direction of two neighboring anode arranged plate is on the contrary, and each anode arranged plate includes 6-10 Block open type blinds Coulomb anode plate, preferably 8 pieces of open type blinds Coulomb anode plates.
In one embodiment, each piece of open type blinds Coulomb anode plate includes the 8-15 piece blinds pole being arranged at equal intervals Plate, preferably 11 blinds pole plates.
In one embodiment, the blinds plate width is 50-80mm, preferably 60mm.
In one embodiment, the tilt angle of the blinds pole plate be 30-60 degree, preferably 45 degree.
In one embodiment, the cross section of the stifled flowing plate can be triangle, semicircle or rectangular etc..It is preferably square Shape.
In one embodiment, the cathode is BS prickle wire, and using the double corona powering modes of the small subregion in front and back, first half area is every One piece of open type blinds coulomb pole plate two BS prickle wire of corresponding arrangement, each piece of later half area open type blinds coulomb pole plate are corresponding Arrange a BS prickle wire.
In one embodiment, the cathode uses top electromagnetic shaking structure, and the coulomb lens anode uses top electricity Magnetic rapping structure or side are around arm hammer rapping structure.
In one embodiment, the electrostatic precipitator further includes two conventional electric fields and a horizontal rotation pole plate electric field, Two conventional electric fields are arranged in close to smoke inlet, horizontal rotation pole plate electric field close to exhanst gas outlet, the coulomb lens field Between conventional electric field and horizontal rotation pole plate electric field.
Beneficial effects of the present invention are as follows:
1) after exhaust gas dust enters electric field, under negative dc high voltage effect, exhaust gas dust is quickly ionized to negatively charged The powder dust particle of lotus.Under the action of electric field Coulomb force, two strands of dirt streams in two neighboring channel are positive from two sides towards coulomb lens Pole focus movement, a large amount of dust are passed through blinds plate channels and are entered in the relatively closed cavity of coulomb lens anode, focused collision, Coalescence is mixed into large dust particle, due in cavity without air-flow, large dust particle can crash into dust-collector from resedimentation Bucket, realization are gathered dust.And by blinds pole plate guiding role and alternate covering, dust particles once enter in anode cavity, will not Reverse outflow occurs and escapes into airflow channel, realizes being completely separated for air-flow and dirt stream.
2) fraction is adsorbed on the dust of blinds pole plate, is directed into cavity in rapping by blinds pole plate angle, Ash bucket is crashed into, rapping reentrainment of dust is effectively prevented, efficiency of dust collection is greatly improved and greatly improves efficiency of dust collection, it is lasting to meet new row Put standard.
3) after active service electric precipitator uses the Retrofit of Electrostatic Precipitator of the invention with coulomb lens anode, dust collector pole plate face Product nearly doubles, and realizes that minimum discharge transformation is particularly advantageous for the active service electric precipitator that expansion space is limited.
Detailed description of the invention
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Fig. 1 is the schematic diagram of the electrostatic precipitator of band coulomb lens anode according to an embodiment of the present invention;
Fig. 2 is the top view of the electrostatic precipitator of band coulomb lens anode shown in FIG. 1;
Fig. 3 is the top view of the coulomb lens field in the electrostatic precipitator of band coulomb lens anode shown in FIG. 1;
Fig. 4 is the perspective view of the coulomb lens anode of coulomb lens field shown in Fig. 3;
Fig. 5 is the perspective view of the open type blinds Coulomb anode plate of coulomb lens anode shown in Fig. 4;
Fig. 6 is the dedusting schematic diagram of coulomb lens field;
Fig. 7 is the dedusting schematic diagram of conventional electric field.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Fig. 1 and 2 shows the electrostatic precipitator with coulomb lens anode of the embodiment of the present invention, may include shell 1, edge Four electric fields that flow of flue gas direction is sequentially arranged and the corresponding dust collect plant (dust ash bucket) for being arranged in each electric field lower end 5.Wherein, the first, second electric field uses routine C480 pole plate electric field 2, and third electric field uses coulomb lens field 3, the 4th electric field Using horizontal rotation pole plate electric field 4.Shell 1, routine C480 pole plate electric field 2, horizontal rotation pole plate electric field 4 and dust collect plant 5 Specific structure can be found in the Chinese utility model patent 208321093U of the same applicant of the application, no longer be retouched here It states.It should be understood that the quantity of above-mentioned various electric fields is not limited to illustrated embodiment, but include at least a coulomb lens field 3.Under Structure in face of coulomb lens field 3 is described in detail.
As shown in Fig. 3 to 5, coulomb lens field 3 in flue gas direction of advance replace compartment of terrain be disposed with multiple row yin Pole 31 and coulomb lens anode 32 (quantity is designed according to deduster size).Wherein, cathode 31 is arranged in two neighboring library Among channel between logical sequence lens anode 32.Channel width between two neighboring coulomb lens anode 32 is 300-600mm, excellent Selection of land is 450mm.Coulomb lens anode 32 has a relatively closed cavity 323, and 323 lower end of cavity is connected with dust Ash bucket 5 (referring to Fig. 1 and 2).Specifically, the coulomb lens anode 32 of two sides is by 11, anode arranged plates 321 and two of housing sidewall The stifled flowing plate 322 at end is constituted, and intermediate coulomb lens anode 32 is by the anode arranged plate 321 of two sides and the stifled flowing plate 322 at both ends It constitutes.The two of the coulomb lens anode 32 of the housing sidewall 11 and anode arranged plate 321 or centre of the coulomb lens anode 32 of two sides Spacing (that is, width of cavity 323) between a anode arranged plate 321 is 100-300mm, it is therefore preferable to 150mm.Each anode plate Row 321 can arrange 6-10 block open type blinds coulomb pole plate 3211, preferably arrange 8 pieces of open type blinds coulomb pole plates 3211. The frame of each piece of open type blinds coulomb anode plate 3211 is made of square tube 32111 and upper and lower platform sling 32112.Square tube 32111 Between be equidistantly provided with 8-15 piece blinds pole plate 32113, preferably 11 blinds pole plates 32113.The width of blinds pole plate 32113 Degree is 50-80mm, preferably 60mm;It is in 30-60 degree angle, preferably 45 degree of angles with pole plate frame plane.In the present embodiment, Each piece of open type blinds coulomb anode plate 3211 is additionally provided with several reinforcing ribs 32114 spaced apart in the height direction and (shows Four).The reinforcing rib 32114 can prevent blinds pole plate 32113 from blowing deformation by flue gas stream, and then prevent the dust in cavity from returning Into flue gas stream.Stifled flowing plate 322 seals anode arranged plate 321 from both ends, so that flue gas stream can only be from two neighboring coulomb lens sun It flows through in (that is, the channel between two neighboring coulomb lens anode 32 is flue gas circulation road) and cavity in channel between pole 32 Airless exists.The cross section of stifled flowing plate 322 can be triangle, semicircle or rectangular etc., preferably rectangular.
In the present embodiment, cathode 31 is BS prickle wire, using the double corona powering modes of the small subregion in front and back, wherein first half area The each piece of two BS prickle wires of corresponding arrangement of open type blinds Coulomb anode plate 3211, each piece of later half area open type blinds coulomb Piece BS prickle wire of corresponding arrangement of anode plate 3211, as shown in Figure 3.
In the present embodiment, cathode 31 and coulomb lens anode 32 are all made of top electromagnetic shaking structure 33, referring to Fig. 1. Certainly, coulomb lens anode 32 can also hammer rapping structure into shape around arm using side.It should be noted that top electromagnetic shaking structure and side Portion around arm hammer rapping structure be it is well known, be not further described herein.
It is briefly described as follows the working principle of coulomb lens field 3, as shown in fig. 6, the stain in figure indicates dust.Work as cigarette After gas dust enters coulomb lens field 3, under negative dc high voltage effect, exhaust gas dust is quickly ionized to negatively charged powder Grit.Under the action of electric field Coulomb force, two strands of dirt streams in two neighboring channel are poly- from two sides towards coulomb lens anode 32 Coke movement.This phenomenon is similar to the focussing force of lens on light line, therefore this electric field is known as coulomb lens field, accordingly Its anode of ground is referred to as coulomb lens anode.The gap that a large amount of dust is passed through between blinds pole plate 32113 enters a coulomb lens sun In the relatively closed cavity 323 of pole 32, focused collision, mixing coalescence are at large dust particle, due to not having air-flow stream in cavity 323 Dynamic, therefore, large dust particle can crash into dust ash bucket from resedimentation, and realization is gathered dust.And it is oriented to and is made by blinds pole plate 32113 With and alternate covering, dust particles once enter in the cavity 323 of coulomb lens anode 32, will not occur inversely flow out and escape Into flue gas circulation road, being completely separated for air-flow and dirt stream is realized.Fraction is adsorbed on the dust on blinds pole plate 32113, It is directed into coulomb cavity of lens anode 32 323 in rapping by the tilt angle of blinds pole plate 32113, crashes into ash Bucket, effectively prevents rapping reentrainment of dust, greatly improves efficiency of dust collection and greatly improve efficiency of dust collection, lasting to meet new discharge mark It is quasi-.
Electrostatic precipitator flue gas with coulomb lens anode of the invention pass through first two routine C480 pole plate electric fields 2 into Row preliminary dust removal then carries out final dusting by coulomb lens field 3, carries out end finally by horizontal rotation pole plate electric field 4 Pole dedusting, can achieve minimum discharge, can satisfy increasingly strict environmental requirement.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right The present invention makes a variety of changes, and is protection scope of the present invention.

Claims (10)

1. a kind of electrostatic precipitator of band coulomb lens anode, which is characterized in that the electrostatic precipitator includes shell and arrangement In intracorporal at least one coulomb of lens field of the shell, the coulomb lens field in flue gas direction of advance between replacing It is disposed with multiple row cathode and coulomb lens anode every ground, the channel between two neighboring coulomb lens anode is flue gas circulation road, Wherein, the cavity that the coulomb lens anode has a surrounding relatively closed, the cavity lower end is connected with dust ash bucket, institute State dust in flue gas circulation road by the effect of gas ionization and it is charged, Charged is caught under the action of electric field Coulomb force Collect in the cavity, and further coalescence sedimentation or rapping drop into the dust ash bucket.
2. electrostatic precipitator as described in claim 1, which is characterized in that the coulomb lens anode of two sides is by housing sidewall, one The stifled flowing plate at a anode arranged plate and both ends is constituted, and intermediate coulomb lens anode is by the anode arranged plate of two sides and the stifled stream at both ends Plate is constituted.
3. electrostatic precipitator as claimed in claim 1 or 2, which is characterized in that the width of the cavity is 100-300mm.
4. the electrostatic precipitator as claimed in claim 1 or 2 with coulomb lens anode, which is characterized in that described two neighboring Channel width between coulomb lens anode is 300-600mm.
5. electrostatic precipitator as claimed in claim 2, which is characterized in that the inclined direction of two neighboring anode arranged plate on the contrary, And each anode arranged plate includes 6-10 block open type blinds Coulomb anode plate.
6. electrostatic precipitator as claimed in claim 5, which is characterized in that each piece of open type blinds Coulomb anode plate include etc. Spaced 8-15 piece blinds pole plate.
7. electrostatic precipitator as claimed in claim 6, which is characterized in that the blinds plate width is 50-80mm.
8. electrostatic precipitator as claimed in claim 6, which is characterized in that the tilt angle of the blinds pole plate is 30-60 degree.
9. electrostatic precipitator as claimed in claim 5, which is characterized in that the cathode is BS prickle wire, using small point of front and back The double corona powering modes in area, each piece of first half area open type blinds Coulomb anode plate two BS prickle wires of corresponding arrangement, later half area An each piece of open type blinds Coulomb anode plate piece BS prickle wire of corresponding arrangement.
10. electrostatic precipitator as described in claim 1, which is characterized in that the cathode uses top electromagnetic shaking structure, institute It states coulomb lens anode and rapping structure is hammered into shape around arm using top electromagnetic shaking structure or side.
CN201910882116.5A 2019-09-18 2019-09-18 A kind of electrostatic precipitator of band coulomb lens anode Pending CN110496707A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111686939A (en) * 2020-07-23 2020-09-22 解标 Secondary dust-raising-proof polar plate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007016872A1 (en) * 2005-08-10 2007-02-15 Lieshui Jin Electrostatic precipitator with high efficiency
JP2009072054A (en) * 2007-09-10 2009-04-02 Takemi Murakami Excitation furnace of nuclear-vibration four-dimensional-energy
CN202061711U (en) * 2011-04-13 2011-12-07 福建东源环保有限公司 Electrostatic precipitator with lens electric fields
CN103878064A (en) * 2014-04-22 2014-06-25 金烈水 Coulomb electric precipitator
CN106583047A (en) * 2017-01-22 2017-04-26 厦门绿洋电气有限公司 Novel efficient energy-saving electric dust remover
CN210994781U (en) * 2019-09-18 2020-07-14 厦门绿洋环境技术股份有限公司 Electrostatic dust collector with coulomb lens anode

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007016872A1 (en) * 2005-08-10 2007-02-15 Lieshui Jin Electrostatic precipitator with high efficiency
JP2009072054A (en) * 2007-09-10 2009-04-02 Takemi Murakami Excitation furnace of nuclear-vibration four-dimensional-energy
CN202061711U (en) * 2011-04-13 2011-12-07 福建东源环保有限公司 Electrostatic precipitator with lens electric fields
CN103878064A (en) * 2014-04-22 2014-06-25 金烈水 Coulomb electric precipitator
CN106583047A (en) * 2017-01-22 2017-04-26 厦门绿洋电气有限公司 Novel efficient energy-saving electric dust remover
CN210994781U (en) * 2019-09-18 2020-07-14 厦门绿洋环境技术股份有限公司 Electrostatic dust collector with coulomb lens anode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111686939A (en) * 2020-07-23 2020-09-22 解标 Secondary dust-raising-proof polar plate

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