CN108940587A - A kind of electric precipitator - Google Patents
A kind of electric precipitator Download PDFInfo
- Publication number
- CN108940587A CN108940587A CN201810783722.7A CN201810783722A CN108940587A CN 108940587 A CN108940587 A CN 108940587A CN 201810783722 A CN201810783722 A CN 201810783722A CN 108940587 A CN108940587 A CN 108940587A
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- Prior art keywords
- strainer
- electric
- electric precipitator
- electric field
- body region
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
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- Electrostatic Separation (AREA)
Abstract
The invention belongs to pollutant cleaning technology fields, disclose a kind of electric precipitator.The electric precipitator includes the gas inlet and exhanst gas outlet along the setting of flow of flue gas direction, it further include the particle collection body region between gas inlet and exhanst gas outlet, particle collection body region includes multiple electric fields and multiple strainers, electric field and strainer are alternately distributed, and strainer is located at the rear of electric field.The present invention solves the problems, such as the reentrainment of dust of electric precipitator, realizes efficient trapping and minimum discharge of the electric precipitator to particulate matter by the way that strainer is arranged at electric field rear.
Description
Technical field
The present invention relates to pollutant cleaning technology field more particularly to a kind of electric precipitators.
Background technique
As minimum discharge requires to expand to the metallurgy industries such as steel from coal-burning power plant, existing particulate matter removing equipment dress
Setting (such as electric precipitator, bag filter and electrostatic fabric filter), there are various problems.Conventional electric precipitator is difficult to reach 5mg/Nm3
Emission request, and although outlet particle concentration may be implemented lower than 5mg/Nm in cloth bag and electrostatic fabric filter3, but filtration resistance
Usually in 1500Pa, the requirement for subsequent blower is high.And due to using filter bag, need to maintain filtration temperature at 100 DEG C
~170 DEG C, therefore should prevent temperature is too low moisture condensation is caused to prevent temperature is excessively high to lead to burning bag again.The flue gas temperature of metallurgy industry
Degree and humidity are easy the scope of design beyond cloth bag or electrostatic fabric filter, therefore the electric precipitator for developing minimum discharge very must
It wants.
The patent of Publication No. CN207238260U discloses a kind of electrostatic precipitator, which sets in inlet
Filter screen is set, after removing larger particles, remainder particulate object enters electric field region, can reduce the particulate matter load of electric field region.But it should
Technical solution can not still solve reentrainment of dust caused by electrostatic precipitator internal cause inverse corona and vibration dust-cleaning, and can not improve thin
The arresting efficiency of grain object, it is difficult to realize particulate matter minimum discharge.
It would therefore be highly desirable to need a kind of Novel electrical dust collector to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of electric precipitators, solve the problems, such as the reentrainment of dust of electric precipitator, realize
Efficient trapping and minimum discharge of the electric precipitator to particulate matter.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of electric precipitator further includes being located at cigarette including the gas inlet and exhanst gas outlet being arranged along flow of flue gas direction
Particle collection body region between gas import and exhanst gas outlet, particle collection body region include multiple electric fields and multiple filters
Net, electric field and strainer are alternately distributed, and strainer is located at the rear of electric field.
Preferably, further including multiple ash buckets, electric field is set to the top of ash bucket, and strainer is set to the boundary of ash bucket.
Preferably, further including the rapping apparatus set on electric precipitator top or side.
Preferably, each strainer is equipped with shaft.
Preferably, further including the control mechanism being electrically connected with shaft, control mechanism is controlled by adjusting the angle of shaft
The running resistance of electric precipitator.
Preferably, strainer is made of rigid material.
Preferably, the aperture of strainer is 10 μm~20 μm.
Preferably, being equipped with airflow uniform distribution plate between gas inlet and particle collection body region.
Preferably, electric field is level-one electric field.
Beneficial effects of the present invention:
The present invention solves the problems, such as the reentrainment of dust of electric precipitator, realizes electricity and remove by the way that strainer is arranged at electric field rear
Efficient trapping and minimum discharge of the dirt device to particulate matter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electric precipitator provided by the invention.
In figure:
1, gas inlet；2, airflow uniform distribution plate；3, particle collection body region；4, electric field；5, strainer；6, exhanst gas outlet.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
For purposes of clarity, " rear " used in the present invention is using the flow direction of flue gas as direction, only to distinguish flue gas
Direction.
As shown in Figure 1, the present invention provides a kind of electric precipitator, including be arranged along flow of flue gas direction gas inlet 1,
Airflow uniform distribution plate 2, particle collection body region 3 and exhanst gas outlet 6, particle collection body region 3 include multiple electric fields 4 and multiple
Strainer 5, electric field 4 and strainer 5 are alternately distributed, and strainer 5 is located at the rear of electric field 4.The present invention is filtered by being arranged at 4 rear of electric field
Net 5 solves the problems, such as the reentrainment of dust of electric precipitator, realizes efficient trapping and minimum discharge of the electric precipitator to particulate matter.
Flue gas reaches particle collection body region 3 by gas inlet 1 and airflow-distribution board 2, and deashing after 4 trap particulate matter of electric field produces
Raw reentrainment of dust is intercepted by strainer 5, will not enter next electric field 4, after 5 surface accumulated particulate matter of strainer, electric precipitator outlet
Particle concentration is lower than 5mg/Nm3.Airflow-distribution board 2 makes air inlet smoke distribution uniform, is not in office inside electric precipitator
The phenomenon that portion is overloaded.
Specifically, which further includes multiple ash buckets and the rapping apparatus (figure set on electric precipitator top or side
In be not shown), electric field 4 be set to ash bucket top, strainer 5 be set to ash bucket boundary.Deashing after 4 trap particulate matter of electric field produces
Raw reentrainment of dust is intercepted by strainer 5, then by the rapping of rapping apparatus, makes to accumulate on strainer 5 and electric precipitator inner wall
Particulate matter drops into the ash bucket being correspondingly arranged with the electric field 4 and the strainer 5, so as to subsequent collection.
Specifically, each strainer 5 is equipped with shaft, so that strainer 5 can be rotated.The electric precipitator further includes and shaft
The control mechanism of electrical connection, control mechanism control the running resistance of electric precipitator by adjusting the angle of shaft.Preferably, strainer
5 are made of rigid materials, it is to be understood that strainer 5 can also be used the cloth bag material similar to bag filter and be made.When
It is best to ramping effect caused by strainer 5 by rapping apparatus when being made of rigid material (such as stainless steel), thus more
Conducive to the deashing of strainer 5.
Specifically, the aperture of strainer 5 is 10 μm~20 μm.Particle concentration in electric precipitator is higher, average grain diameter more
Greatly, the aperture of strainer 5 is bigger.
Specifically, electric field 4 is level-one electric field, it is to be understood that electric field 4 can also be secondary electric field, three-level electric field and n grades
Electric field (n >=4).In practice, particle concentration highest in level-one electric field is replaced by being arranged in multiple level-one electric fields with it
Multiple strainers 5 of distribution, have been able to the particle concentration of exhanst gas outlet 6 being reduced to 5mg/Nm3。
The explanation about inventive point of the present invention is carried out below by several embodiment and comparative examples.
Embodiment 1:
A kind of electric precipitator, particle collection body region 3 include two level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 10g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
First rotatable 20 μm of 5 aperture of strainer, carries out rapping every 180s, strainer 5 is perpendicular to flow of flue gas direction；Second level-one
Electric field applies high voltage direct current negative voltage, and voltage is -60KV, carries out rapping every 150s；Second rotatable 5 aperture of strainer, 10 μ
M carries out rapping every 240s, and strainer 5 is perpendicular to flow of flue gas direction；The particle concentration 4mg/Nm of exhanst gas outlet 63。
Comparative example 1:
A kind of electric precipitator, particle collection body region 3 include two level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 10g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
Second level-one electric field applies high voltage direct current negative voltage, and voltage is -60KV, carries out rapping every 150s；Second level-one electric field
It installs afterwards and can be rotated strainer 5,10 μm of aperture carries out rapping every 240s；The particle concentration 19mg/Nm of exhanst gas outlet 63。
Embodiment 2:
A kind of electric precipitator, particle collection body region 3 include three level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 40g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
First rotatable 20 μm of 5 aperture of strainer, carries out rapping every 180s, strainer 5 is parallel to flow of flue gas direction；Second level-one
Electric field applies high voltage direct current negative voltage, and voltage is -60KV, carries out rapping every 150s；Second rotatable 5 aperture of strainer, 10 μ
M carries out rapping every 150s, and strainer 5 and the angle in flow of flue gas direction are 45 °；Third level-one electric field applies high voltage direct current
Negative voltage, voltage are -65KV, carry out rapping every 150s；Third can be rotated 10 μm of 5 aperture of strainer, shake every 240s
It beats, strainer 5 is perpendicular to flow of flue gas direction；The particle concentration 3mg/Nm3 of exhanst gas outlet 6.
Comparative example 2:
A kind of electric precipitator, particle collection body region 3 include three level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 40g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
Second level-one electric field applies high voltage direct current negative voltage, and voltage is -60KV, carries out rapping every 150s；Third level-one electric field
Apply high voltage direct current negative voltage, voltage is -65KV, carries out rapping every 150s；Rotatably filter is installed after third level-one electric field
Net 5,10 μm of aperture carry out rapping every 240s；The particle concentration 14mg/Nm of exhanst gas outlet 63。
Embodiment 3:
A kind of electric precipitator, particle collection body region 3 include four level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 40g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
First rotatable 20 μm of 5 aperture of strainer carries out rapping every 180s, and strainer 5 and the angle in flow of flue gas direction are 45 °；The
Two level-one electric fields apply high voltage direct current negative voltage, and voltage is -60KV, carry out rapping every 150s；Second rotatable strainer 5
20 μm of aperture carries out rapping every 150s, and strainer 5 and the angle in flow of flue gas direction are 45 °；Third level-one electric field applies high
Negative DC voltage is pressed, voltage is -65KV, carries out rapping every 150s；Third can be rotated 10 μm of 5 aperture of strainer, every 240s
Rapping is carried out, strainer is perpendicular to flow of flue gas direction；4th level-one electric field applies high voltage direct current negative voltage, and voltage is -65KV,
Rapping is carried out every 150s；4th rotatable 10 μm of aperture of filter screen, carries out rapping every 240s, strainer 5 is perpendicular to flue gas stream
Dynamic direction；The particle concentration 3.5mg/Nm of exhanst gas outlet 63。
Comparative example 3:
A kind of electric precipitator, particle collection body region 3 include four level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 40g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
Second level-one electric field applies high voltage direct current negative voltage, and voltage is -60KV, carries out rapping every 150s；Third level-one electric field
Apply high voltage direct current negative voltage, voltage is -65KV, carries out rapping every 150s；It is negative that 4th level-one electric field applies high voltage direct current
Voltage, voltage are -65KV, carry out rapping every 150s；It is installed after 4th level-one electric field and can be rotated strainer 5,10 μm of aperture, often
Rapping is carried out every 240s；The particle concentration 9mg/Nm of exhanst gas outlet 63。
Embodiment 4:
A kind of electric precipitator, particle collection body region 3 include four level-one electric fields, the flue gas particles of gas inlet 1
Concentration is 40g/Nm3, first level-one electric field application high voltage direct current negative voltage, voltage is -60KV, carries out rapping every 120s；
First rotatable 20 μm of 5 aperture of strainer, carries out rapping every 180s, strainer 5 is perpendicular to flow of flue gas direction；Second level-one
Electric field applies high voltage direct current negative voltage, and voltage is -60KV, carries out rapping every 150s；Second rotatable 5 aperture of strainer, 20 μ
M carries out rapping every 150s, and strainer 5 is perpendicular to flow of flue gas direction；Third level-one electric field applies high voltage direct current negative voltage,
Voltage is -65KV, carries out rapping every 150s；Third can be rotated 10 μm of aperture of filter screen, carry out rapping every 240s, strainer hangs down
Directly in flow of flue gas direction；4th level-one electric field applies high voltage direct current negative voltage, and voltage is -65KV, shakes every 150s
It beats；4th rotatable 10 μm of 5 aperture of strainer, carries out rapping every 240s, strainer 5 is perpendicular to flow of flue gas direction；Flue gas goes out
The particle concentration 1.5mg/Nm of mouth 63。
To sum up, by above-described embodiment and comparative example it can be seen that solving electricity by the way that strainer 5 is arranged at 4 rear of electric field and removing
The reentrainment of dust problem of dirt device realizes efficient trapping and minimum discharge of the electric precipitator to particulate matter, and of exhanst gas outlet 6
Grain object concentration is lower than 5mg/Nm3。
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For the ordinary skill user of fields, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (9)
1. a kind of electric precipitator, including the gas inlet (1) and exhanst gas outlet (6) being arranged along flow of flue gas direction, feature exists
In, it further include the particle collection body region (3) between the gas inlet (1) and the exhanst gas outlet (6), described
Grain object trapping body region (3) includes multiple electric fields (4) and multiple strainers (5), and the electric field (4) and the strainer (5) alternately divide
Cloth, and the strainer (5) is located at the rear of the electric field (4).
2. electric precipitator according to claim 1, which is characterized in that further include multiple ash buckets, the electric field (4) is set to institute
The top of ash bucket is stated, the strainer (5) is set to the boundary of the ash bucket.
3. electric precipitator according to claim 2, which is characterized in that further include being set to the electric precipitator top or side
Rapping apparatus.
4. electric precipitator according to claim 1, which is characterized in that each strainer (5) is equipped with shaft.
5. electric precipitator according to claim 4, which is characterized in that further include the control machine being electrically connected with the shaft
Structure, the control mechanism control the running resistance of the electric precipitator by adjusting the angle of the shaft.
6. electric precipitator according to claim 1, which is characterized in that the strainer (5) is made of rigid material.
7. electric precipitator according to claim 1, which is characterized in that the aperture of the strainer (5) is 10 μm~20 μm.
8. electric precipitator according to claim 1, which is characterized in that the gas inlet (1) and the particle collection
Airflow uniform distribution plate (2) are equipped between body region (3).
9. electric precipitator described according to claim 1~any one of 8, which is characterized in that the electric field (4) is level-one electricity
?.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783722.7A CN108940587A (en) | 2018-07-17 | 2018-07-17 | A kind of electric precipitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783722.7A CN108940587A (en) | 2018-07-17 | 2018-07-17 | A kind of electric precipitator |
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| Publication Number | Publication Date |
|---|---|
| CN108940587A true CN108940587A (en) | 2018-12-07 |
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ID=64481574
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810783722.7A Pending CN108940587A (en) | 2018-07-17 | 2018-07-17 | A kind of electric precipitator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109939823A (en) * | 2019-03-14 | 2019-06-28 | 浙江菲达环保科技股份有限公司 | A kind of high-efficiency electric dust catcher of band independence deashing and strainer |
| CN112403156A (en) * | 2020-10-09 | 2021-02-26 | 合肥三邦环保科技有限公司 | Efficient oil smoke purifier |
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| CN105195318A (en) * | 2015-11-12 | 2015-12-30 | 解标 | Two-dimensional anode dust collection electric precipitator |
| CN205448242U (en) * | 2016-03-24 | 2016-08-10 | 安阳市金梧桐环保设备有限公司 | Filter sets up structure in new trend air purification equipment |
| CN106540805A (en) * | 2016-12-29 | 2017-03-29 | 天津钢铁集团有限公司 | A kind of electric dust removing system improved structure |
| CN106733195A (en) * | 2016-12-23 | 2017-05-31 | 中国科学院过程工程研究所 | A kind of non-homogeneous printed line electro dust removing method and component and electric cleaner |
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| CN2053112U (en) * | 1989-03-13 | 1990-02-21 | 武汉冶金建筑专科学校 | H-shaped tri-electrode duster |
| CN2198978Y (en) * | 1994-08-26 | 1995-05-31 | 陈学构 | Lens-type electric dust collector with alternately arranged electrodes |
| CN203764405U (en) * | 2014-03-19 | 2014-08-13 | 厦门欣绿洋环保工程有限公司 | High-voltage electrostatic dust collector with positive corona electrodes and metal filter screen dust collection electrodes |
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| CN104801135A (en) * | 2015-04-03 | 2015-07-29 | 宜兴市爱迪尔科技有限公司 | Filter-screen wet-type electric dust removing device and method |
| CN105195318A (en) * | 2015-11-12 | 2015-12-30 | 解标 | Two-dimensional anode dust collection electric precipitator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109939823A (en) * | 2019-03-14 | 2019-06-28 | 浙江菲达环保科技股份有限公司 | A kind of high-efficiency electric dust catcher of band independence deashing and strainer |
| CN112403156A (en) * | 2020-10-09 | 2021-02-26 | 合肥三邦环保科技有限公司 | Efficient oil smoke purifier |
| CN112403156B (en) * | 2020-10-09 | 2022-05-17 | 合肥三邦环保科技有限公司 | Efficient oil smoke purifier |
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Application publication date: 20181207 |
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