CN106914343B - A kind of dust-extraction unit for controlling PM2.5 - Google Patents

A kind of dust-extraction unit for controlling PM2.5 Download PDF

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Publication number
CN106914343B
CN106914343B CN201710042110.8A CN201710042110A CN106914343B CN 106914343 B CN106914343 B CN 106914343B CN 201710042110 A CN201710042110 A CN 201710042110A CN 106914343 B CN106914343 B CN 106914343B
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China
Prior art keywords
dust
knockouts
extraction unit
electric precipitator
flue gas
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CN201710042110.8A
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Chinese (zh)
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CN106914343A (en
Inventor
姚宇平
刘含笑
郦建国
杜依倩
何德源
杨浩锋
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Zhejiang Feida Environmental Science and Technology Co Ltd
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Zhejiang Feida Environmental Science and Technology Co Ltd
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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
    • B03C3/017Combinations of electrostatic separation with other processes, not otherwise provided for
    • B03C3/0175Amassing particles by electric fields, e.g. agglomeration
    • 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
    • B03C3/743Cleaning the electrodes by using friction, e.g. by brushes or sliding elements

Abstract

The present invention relates to a kind of dust-extraction units for controlling PM2.5, solve dust-extraction unit of the prior art undesirable deficiency of effect when removing PM2.5.A kind of dust-extraction unit for controlling PM2.5 provided by the invention, flue gas is followed by knockouts, electric precipitator, rotating electrode type electric precipitator, it is discharged after wet type desulphurization device, knockouts is fixed on the import end socket or inlet flue duct of electric precipitator, knockouts includes turbulence columns, knockouts can also include charge device or electric field mixing device, and, rotating electrode type electric precipitator passes through deashing steel brush deashing, relative to the prior art, the setting of turbulence columns can reduce flue gas resistance, and be conducive to agglomerate the particulate matter in flue gas, volume increase after particulate matter is agglomerated together, so that dust-extraction unit can effectively remove the dust in flue gas, optimize the dust removal performance of dust-extraction unit, and, the PM2.5 in flue gas can effectively be removed, improve the dust removing effects of dust-extraction unit.

Description

A kind of dust-extraction unit for controlling PM2.5
Technical field
The present invention relates to dust-extraction unit more particularly to a kind of dust-extraction units for controlling PM2.5.
Background technology
Dedusting technology is widely used in thermal power generation and other fields, and efficiency of dust collection directly affects dedusting quality.It faces The deterioration of environment, the dust removing effects of dust-extraction unit are increasingly taken seriously.The especially removal rate of PM2.5.
Dust-extraction unit setting of the prior art is unreasonable, although rational emission request can be reached, for The removal efficiency of PM2.5 is not obvious, and can not meet ecological requirements.
Invention content
A kind of dust-extraction unit for controlling PM2.5 provided by the invention, it is intended to dust-extraction unit of the prior art be overcome to go Effect undesirable deficiency during except PM2.5.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that:A kind of dust-extraction unit for controlling PM2.5, Including knockouts, electric precipitator, rotating electrode type electric precipitator and the wet type desulphurization device for agglomerating the particulate matter in flue gas, flue gas Followed by being discharged after knockouts, electric precipitator, rotating electrode type electric precipitator, wet type desulphurization device, the electric precipitator includes Import end socket, the knockouts are fixed in import end socket, and the electric precipitator includes last electric field, and the rotating electrode type electricity removes On the last electric field of dirt device setting, deashing steel brush is equipped in the rotating electrode type electric precipitator, the deashing steel brush is driven by motor.
A kind of optional scheme, is equipped with gearbox between the motor and deashing steel brush, the motor passes through at least two V Power is inputted gearbox by band, and the gearbox is rotated by chain-driving deashing steel brush.The setting of gearbox can be easily The rotating speed of deashing steel brush is controlled, optimizes the performance of deashing steel brush.Motor is revolved by V bands and chain-driving deashing steel brush Turn, reduce the manufacture cost of dust-extraction unit.
A kind of optional scheme, the knockouts include electrode group, and the electrode group includes positive electrode and negative electrode, adjacent The distance between two arrays of electrodes group is unequal.The setting can effectively improve the charged situation of particle, so as to be conducive to particle Cohesion is grown up, and is conducive to the dedusting of dust-extraction unit, improves the dust removing effects of dust-extraction unit.
A kind of optional scheme, the knockouts include turbulence columns, and the shape of the turbulence columns is conical, also, phase The distance between adjacent two turbulence columns are equal;The knockouts includes air duct, and the turbulence columns integral type is arranged on air duct, and And integral type is equipped with orbicule on one end of the turbulence columns protrusion air duct side wall.The setting can be effectively reduced air-flow resistance Power is conducive to the cohesion of particle, improves the efficiency of dust collection of dust-extraction unit.
A kind of optional scheme, the deashing steel brush include brush body and bristle, and the bristle is welded on brush body, the brush Hair far from brush body one end on integral type be equipped with sphere, 1.5 times to 2 times of a diameter of bristle diameter of the sphere.Sphere Setting can damage rotating electrode type electric precipitator to avoid deashing steel brush, optimize the performance of dust-extraction unit, extend and remove The service life of dirt device.
Compared with prior art, a kind of dust-extraction unit for controlling PM2.5 provided by the invention, has the following advantages that:Flue gas Followed by being discharged after knockouts, electric precipitator, rotating electrode type electric precipitator, wet type desulphurization device, knockouts is fixed on electricity and removes The import end socket of dirt device, knockouts includes turbulence columns, also, rotating electrode type electric precipitator, by deashing steel brush deashing, electricity removes Dirt device includes last electric field, and the rotating electrode type electric precipitator is set on last electric field, relative to the prior art, the setting of turbulence columns Flue gas resistance can be reduced, and be conducive to agglomerate the particulate matter in flue gas, volume increase after particulate matter is agglomerated together, so as to Dust-extraction unit is allowd effectively to remove the dust in flue gas, optimizes the dust removal performance of dust-extraction unit, and it is possible to effectively PM2.5 in ground removal flue gas improves the dust removing effects of dust-extraction unit.Rotating electrode type electric precipitator is clear using deashing steel brush Ash can effectively remove the dust stratification in rotating electrode type electric precipitator, optimize the performance of dust-extraction unit.
Description of the drawings
Attached drawing 1 is the flue gas flow direction schematic diagram in a kind of dust-extraction unit for controlling PM2.5 of the present invention;
Attached drawing 2 is the front view of turbulence columns in a kind of dust-extraction unit for controlling PM2.5 of the present invention;
Attached drawing 3 is the front view of bristle in a kind of dust-extraction unit for controlling PM2.5 of the present invention;
Attached drawing 4 is that motor drives the power of deashing steel brush to transmit signal in a kind of dust-extraction unit for controlling PM2.5 of the present invention Figure.
Specific embodiment
Below in conjunction with the accompanying drawings, the dust-extraction unit of control PM2.5 of the present invention a kind of is described further.Following embodiment It is only used for helping skilled in the art to understand the present invention, is not limitation of the present invention.
Dust-extraction unit is mainly used for removing the particulate matter in flue gas, is wanted so that the flue gas of thermal power plant discharge meets environmental protection It asks, since PM2.5 can enter human body, in the particulate matter in removing flue gas, should remove in flue gas completely as possible PM2.5。
As shown in Figure 1, a kind of dust-extraction unit for controlling PM2.5, including make knockouts 1 that the particulate matter in flue gas agglomerates, Electric precipitator 2, rotating electrode type electric precipitator 3 and wet type desulphurization device 4, flue gas is followed by knockouts 1, electric precipitator 2, rotation It is discharged after electric pole type electric precipitator 3, wet type desulphurization device 4, the electric precipitator 2 includes last electric field, and the rotating electrode type electricity removes Dirt device 3 is set on last electric field, and the flue gas of discharge can further carry out other processing, can also direct emission, with specific reference to cigarette Nuisance decision in gas, herein not reinflated narration;
The electric precipitator 2 includes import end socket, and the knockouts 1 is fixed in import end socket, and knockouts 1 can pass through frame Body is fixed in import end socket, and knockouts 1 is bolted on frame body, and frame body is bolted on import end socket again On side wall;
As shown in Figure 1 and Figure 2, the knockouts 1 includes turbulence columns 5, and the shape of the turbulence columns 5 is cone, also, The distance between two neighboring turbulence columns 5 are equal, and the knockouts 1 includes air duct, and 5 integral type of turbulence columns is arranged on air duct On, i.e. 5 integral type of turbulence columns is arranged on the side wall in air duct, also, the turbulence columns 5 protrude one on one end of air duct side wall Formula is equipped with orbicule 11, and the turbulence columns 5 line up several rows, which can be effectively reduced resistance of the flue gas in flowing, It is flowed through conducive to flue gas, orbicule 11 is provided with conducive to the particulate matter cohesion in flue gas, so as to effectively remove in flue gas PM2.5;
The knockouts 1 includes electrode group, and the electrode group includes positive electrode and negative electrode, between two adjacent groups electrode group Distance it is unequal, the setting of this Unequal distance can effectively improve the charged situation of particulate matter in flue gas, have earlier than in flue gas Particulate matter cohesion, optimize the dust removal performance of dust-extraction unit;
As shown in figure 4, being equipped with deashing steel brush 6 in the rotating electrode type electric precipitator 3, deashing steel brush 6 is i.e. using steel Manufactured brush for removing the dust stratification in rotating electrode type electric precipitator 3, is being conducive to rotating electrode type electric precipitator 3 just Often operation, deashing steel brush 6 have good ash-removal effect, more thorough with deashing relative to vibration dust-cleaning of the prior art Advantage;
As shown in figure 4, the deashing steel brush 6 is driven by motor 7, the rotating speed of motor 7 is generally higher, and can during practical deashing Can not need to deashing steel brush 6 has rotating speed high in this way, for this purpose, gearbox 8 is equipped between the motor 7 and deashing steel brush 6, it is described Power is inputted gearbox 8 by motor 7 by least two V bands 9, and the gearbox 8 drives deashing steel brush 6 to revolve by chain 10 Turn, the transmission of power is realized using V bands 9 and chain 10, reduce the manufacture cost of dust-extraction unit;
As shown in Figure 3, Figure 4, the deashing steel brush 6 includes brush body and bristle 12, and the bristle 12 is welded on brush body, institute It states on the one end of bristle 12 far from brush body integral type and is equipped with sphere 13,1.5 times of 12 diameter of a diameter of bristle of the sphere 13 To 2 times.The setting of sphere 13 can damage rotating electrode type electric precipitator 3 to avoid deashing steel brush 6, extend making for dust-extraction unit Use the service life.
Above-mentioned technical proposal has good dust removing effects, knockouts 1 and rotating electrode type electricity during specifically used The combination of both dedusters 3 efficiently solve " the charged difficulty of fine dust " existing for electric precipitator 2, " inverse corona " and The common problem of " reentrainment of dust " improves removal efficiency of the dust-extraction unit to PM2.5.
In above-mentioned technical proposal, knockouts 1 can also include charge device and electric field mixing device, to optimize dust-extraction unit Performance.
The section Example of the present invention is described in detail above in association with attached drawing.Those skilled in the art read this theory It after bright book, can be modified based on technical scheme of the present invention to above-described embodiment, these modifications still fall within the guarantor of the present invention Protect range.

Claims (1)

1. a kind of dust-extraction unit for controlling PM2.5, it is characterised in that:Including make knockouts (1) that the particulate matter in flue gas agglomerates, Electric precipitator (2), rotating electrode type electric precipitator (3) and wet type desulphurization device (4), flue gas is followed by knockouts (1), electric precipitation Device (2), rotating electrode type electric precipitator (3), wet type desulphurization device (4) are discharged afterwards, and the electric precipitator (2) includes import end socket, The knockouts (1) is fixed in import end socket, and the electric precipitator (2) includes last electric field, the rotating electrode type electric precipitation On the last electric field of device (3) setting, deashing steel brush (6), the deashing steel brush (6) are equipped in the rotating electrode type electric precipitator (3) It is driven by motor (7);
Gearbox (8) is equipped between the motor (7) and deashing steel brush (6), the motor (7) will be by the way that at least two V bands (9) will Power input gearbox (8), the gearbox (8) drive deashing steel brush (6) to rotate by chain (10);
The knockouts (1) includes electrode group, and the electrode group includes positive electrode and negative electrode, between two adjacent groups electrode group Apart from unequal;
The knockouts (1) includes turbulence columns (5), and the shape of the turbulence columns (5) is conical, also, two neighboring flow-disturbing The distance between column (5) is equal;The knockouts (1) includes air duct, and turbulence columns (5) integral type is arranged on air duct, and And integral type is equipped with orbicule (11) on one end of turbulence columns (5) the protrusion air duct side wall;
The deashing steel brush (6) includes brush body and bristle (12), and the bristle (12) is welded on brush body, and the bristle (12) is remote From integral type on one end of brush body be equipped with sphere (13), 1.5 times to 2 of a diameter of bristle (12) diameter of the sphere (13) Times.
CN201710042110.8A 2017-01-20 2017-01-20 A kind of dust-extraction unit for controlling PM2.5 Active CN106914343B (en)

Priority Applications (1)

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CN106914343B true CN106914343B (en) 2018-07-03

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100543348B1 (en) * 2003-03-15 2006-01-20 황진수 Electro static precipitator with automatic cleaning device
CN101249471A (en) * 2007-11-23 2008-08-27 燕山大学 Wet-type desulfurize and dust removing integrated machine
CN101530712A (en) * 2009-03-06 2009-09-16 浙江菲达环保科技股份有限公司 Bipolar unequal electrofluid particle polymerizer
CN102416363A (en) * 2011-12-16 2012-04-18 江苏瑞帆环保装备股份有限公司 Dust removal method and device based on chemical agglomeration and split linked anode electric dust removal
CN202570381U (en) * 2012-05-23 2012-12-05 厦门绿洋电气有限公司 Composite high-voltage electrostatic dust collector system
CN202606025U (en) * 2012-05-16 2012-12-19 浙江菲达环保科技股份有限公司 Smoke desulfurizer
CN103868087A (en) * 2014-01-17 2014-06-18 东南大学 Method and device for cooperatively enhancing PM2.5 (Particulate Matter 2.5) removal and smoke afterheat deep utilization
CN102430477B (en) * 2011-12-28 2014-11-26 艾尼科环保技术(安徽)有限公司 Electrostatic dust remover with movable electrode plate
CN104815755A (en) * 2015-03-31 2015-08-05 金华大维电子科技有限公司 Novel electrostatic dust removing structure
CN206567092U (en) * 2017-01-20 2017-10-20 浙江菲达环保科技股份有限公司 A kind of control PM2.5 dust arrester

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100543348B1 (en) * 2003-03-15 2006-01-20 황진수 Electro static precipitator with automatic cleaning device
CN101249471A (en) * 2007-11-23 2008-08-27 燕山大学 Wet-type desulfurize and dust removing integrated machine
CN101530712A (en) * 2009-03-06 2009-09-16 浙江菲达环保科技股份有限公司 Bipolar unequal electrofluid particle polymerizer
CN102416363A (en) * 2011-12-16 2012-04-18 江苏瑞帆环保装备股份有限公司 Dust removal method and device based on chemical agglomeration and split linked anode electric dust removal
CN102430477B (en) * 2011-12-28 2014-11-26 艾尼科环保技术(安徽)有限公司 Electrostatic dust remover with movable electrode plate
CN202606025U (en) * 2012-05-16 2012-12-19 浙江菲达环保科技股份有限公司 Smoke desulfurizer
CN202570381U (en) * 2012-05-23 2012-12-05 厦门绿洋电气有限公司 Composite high-voltage electrostatic dust collector system
CN103868087A (en) * 2014-01-17 2014-06-18 东南大学 Method and device for cooperatively enhancing PM2.5 (Particulate Matter 2.5) removal and smoke afterheat deep utilization
CN104815755A (en) * 2015-03-31 2015-08-05 金华大维电子科技有限公司 Novel electrostatic dust removing structure
CN206567092U (en) * 2017-01-20 2017-10-20 浙江菲达环保科技股份有限公司 A kind of control PM2.5 dust arrester

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