CN108160332B - Electric dust collector with filtering type porous anode plate - Google Patents
Electric dust collector with filtering type porous anode plate Download PDFInfo
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- CN108160332B CN108160332B CN201711465321.9A CN201711465321A CN108160332B CN 108160332 B CN108160332 B CN 108160332B CN 201711465321 A CN201711465321 A CN 201711465321A CN 108160332 B CN108160332 B CN 108160332B
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
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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
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
- B03C3/155—Filtration
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
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Abstract
The invention discloses an electric dust collector with a filtering type porous anode plate, which comprises more than three anode strips arranged in parallel, wherein a plurality of corona electrodes are arranged between two adjacent anode strips, each anode strip consists of a plurality of anode plates arranged side by side, and the anode plate positioned on the inner side is provided with a through hole for smoke to pass through; the two ends of the anode belt, namely the air inlet end and the air outlet end, are respectively provided with a flow choking dust collecting plate for changing the internal gas flow path of the electric dust collector and also have the dust adsorption effect, and the air outlet end is also provided with a porous dust collecting plate for further adsorbing dust and adjusting the gas flow path.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to an electric dust remover with a filtering type porous anode plate.
Background
Electric dust removal is widely applied in a plurality of gas dust removal methods. The dust-containing gas is electrically separated when passing through a high-voltage electric field, and dust particles and negative ions are combined to be charged negatively and then tend to discharge on the surface of the anode to be deposited. The method is generally used in the industries of thermal power, metallurgy, cement, chemical industry and the like, and is used for purifying gas or recovering useful dust particles.
In the existing electric dust remover, because the distance between the positive electrode plate and the negative electrode plate is large, particulate matters with the diameter less than or equal to 2.5 microns in partial smoke are not attached to the positive electrode plate in a timely manner after being charged in air flow, and the particulate matters are carried by the air flow to pass through an electric field area between the positive electrode plate and the negative electrode plate; if make its dwell time extension in the electric field through the speed that reduces the air current, then the particulate matter that electrostatic precipitator can adsorb and collect will show and increase to satisfy the environmental protection and to the processing requirement that the particulate matter discharged, but work efficiency will decline by a wide margin, investment and area will increase by a wide margin. The existing electric dust collector can not further remove very fine dust in large-flow gas, the dust amount in the discharged flue gas is generally more than 40 mg/cubic meter, and most of the discharged dust belongs to particulate matters capable of entering the lung. Traditional electrostatic precipitator is when giving the supporting dust removal of power plant boiler, adopt 3 to 5 grades of electric fields to establish ties to use the dust remover of constitution usually, it is big that it has the processing tolerance in the unit interval, get rid of the fine characteristics of the dust effect of great granule, but continuously improve along with the country to the environmental standard of power plant exhaust flue gas, even take 3 to 5 technical scheme that the electrostatic precipitator of group establishes ties and use, also be difficult to effectively get rid of this kind of tiny dust of PM2.5 that exists in a large amount in the exhaust flue gas, because PM2.5 can't be got rid of to the high efficiency, lead to a large amount of power boiler in china to be difficult to satisfy new power plant boiler environmental protection standard of discharging fume, need one kind for this urgent, can enough satisfy the work efficiency requirement, can satisfy the more advanced scientific electrostatic precipitator that.
For the above reasons, the present inventors have made intensive studies on the existing electric dust collector and designed a new electric dust collector having a filtering type porous anode plate which can solve the above problems.
Disclosure of Invention
In order to overcome the problems, the inventor of the invention has conducted intensive research and designs an electric dust collector with a filtering type porous anode plate, the electric dust collector comprises more than three anode strips which are arranged in parallel, a plurality of corona electrodes are arranged between every two adjacent anode strips, each anode strip consists of a plurality of anode plates which are arranged side by side, and the anode plates positioned on the inner sides of the anode strips are provided with through holes so as to facilitate smoke to pass through; the anode belt is provided with a flow choking dust collecting plate at two ends, namely an air inlet end and an air outlet end, respectively, so as to change the gas flow path in the electric dust collector and have the function of dust adsorption, and the air outlet end is also provided with a porous dust collecting plate so as to further adsorb dust and adjust the gas flow path, thereby completing the invention.
In particular to an electric dust collector with a filtering type porous anode plate, which comprises more than three anode strips arranged in parallel,
a plurality of corona electrodes 1 are arranged between two adjacent anode strips,
the anode strips comprise two outer anode strips positioned at the outermost side and an inner anode strip positioned between the two outer anode strips,
the outer anode strip and the inner anode strip both comprise a plurality of anode plates 2 arranged side by side,
wherein, the anode plate of the inner side anode strip is provided with a through hole.
Wherein, two ends of the anode belt, namely an air inlet end and an air outlet end are respectively provided with a flow resisting dust collecting plate 3,
the width value of the flow resisting dust collecting plate 3 is basically equal to the distance value between two adjacent anode belts;
each flow blocking dust collecting plate 3 can shield a channel, and the channel is a channel for gas to flow between two adjacent anode strips.
Wherein, the flow resisting dust collecting plate 3 arranged at the air inlet end only shields the channel formed by the inner side anode belt,
the flow choking dust collecting plates 3 arranged at the air inlet end and the flow choking dust collecting plates 3 arranged at the air outlet end are arranged in a staggered manner;
preferably, the choke dust collecting plate 3 is provided with a through hole.
Wherein, the flow direction of the flue gas at the air inlet end is changed by the flow resisting dust collecting plate 3 and the anode plate 2;
preferably, the baffle 3 allows the amount of flue gas directly entering each channel to be different,
wherein, the smoke amount in the channel blocked by the flow blocking dust collecting plate 3 is less than the smoke amount in the channel which is not blocked,
the through holes on the anode plate 2 enable the smoke in the channel with the air inlet end not shielded to enter the adjacent channel.
Wherein, the air outlet end is also provided with a porous dust collecting plate 4, and the porous dust collecting plate 4 is provided with a through hole;
the porous dust collecting plate 4 is disposed at the outer side of the choke dust collecting plate 3,
the flow choking dust collecting plates 3 arranged at the air outlet end and the porous dust collecting plates 4 are arranged in a staggered manner.
The anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4 are all grounded anodes.
The anode plate 2, the flow choking dust collecting plate 3 and the porous dust collecting plate 4 are all in the shape of a strip groove and are formed by bending two long edges of a strip plate towards the same side;
preferably, the anode plate 2 and the porous dust collecting plate 4 are both provided with more than two pairs of bending areas;
preferably, the choke plate 3 has only one pair of bending regions.
Wherein, the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4 are all provided with reinforcing ribs.
Wherein, the top of the electric dust collector is provided with a suspension device, and the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4 are all independently arranged on the suspension device.
Wherein, the top of the electric dust collector is provided with an electromagnetic rapping device on the suspension device.
The invention has the advantages that:
(1) according to the electric dust collector with the filtering type porous anode plate, provided by the invention, the anode plate, the flow resisting dust collecting plate and the porous dust collecting plate are obtained by folding edges of a plate, punching honeycomb holes and installing the plates in a segmented or integral manner, so that the anode plate, the flow resisting dust collecting plate and the porous dust collecting plate are good in integrity, and when the top is rapped, the rapping force can be directly transmitted to the bottom, thereby being beneficial to plate ash removal;
(2) according to the electric dust collector with the filtering type porous anode plate, provided by the invention, the flow resisting dust collecting plate is arranged at the air inlet end, and the through holes are formed in the anode plate, so that part of smoke changes the flow direction, and particulate matters are close to and penetrate through the porous anode plate, so that the dust intercepting and filtering capacity of the electric dust collector is improved, the electric dust collector is particularly suitable for dealing with relatively fine dust, and the air flow balance in the electric dust collector is better;
(3) according to the electric dust collector with the filtering type porous anode plate, provided by the invention, the anode plate is provided with the through hole, so that the flow direction of internal airflow is changed, the internal resistance is slightly increased, the adhesive force of dust collection is reduced by the porous anode plate, and the dust collection on the surface of the electrode plate is favorably cleaned by vibration;
(4) according to the electric dust collector with the filtering type porous anode plate, the flow direction of internal airflow is changed, the capability of intercepting and filtering dust of the electric dust collector is enhanced through the through holes on the anode plate and the synergistic effect of the flow resisting dust collecting plate and the porous dust collecting plate, and particularly, the electric field at the rear part is used for treating relatively fine dust, particularly dust with the level of adsorbing PM2.5 or below, so that the dust collecting efficiency is improved, and the emission concentration of the smoke dust can be reduced by 30-40%;
(5) according to the electric dust collector with the filtering type porous anode plate, the electric field area is increased along the airflow direction, the dust collection efficiency is improved, the uniformity of uniform airflow distribution of each electric field is facilitated, and the dust collection efficiency is also improved; and no additional power consumption is added.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of an electric dust collector with a filtering type porous anode plate according to a preferred embodiment of the invention;
FIG. 2 is a schematic diagram showing the front structure of an upper anode plate of an electric dust collector with a filtering type porous anode plate according to a preferred embodiment of the invention;
FIG. 3 is a schematic top view of an upper anode plate of an electric dust collector with a filtering type porous anode plate according to a preferred embodiment of the invention;
FIG. 4 is a schematic structural diagram of the front side of an upper flow resisting dust collecting plate of an electric dust collector with a filtering type porous anode plate according to a preferred embodiment of the invention;
FIG. 5 is a schematic top view of the upper flow resisting dust collecting plate of the electric dust collector with filtering type porous anode plates according to a preferred embodiment of the invention;
FIG. 6 is a schematic front structural view of a porous dust collecting plate on an electric dust collector with a filtering type porous anode plate according to a preferred embodiment of the invention;
FIG. 7 is a schematic top view of a porous dust collecting plate of an electric dust collector with filtering type porous anode plates according to a preferred embodiment of the invention;
FIG. 8 is a schematic structural view of an electric dust collector suspension device with a filtering type porous anode plate according to a preferred embodiment of the invention;
FIG. 9 is a schematic structural diagram of through holes in an anode plate of an electric dust collector with a filtering type porous anode plate and first protrusions on the through holes in the anode plate according to a preferred embodiment of the invention;
FIG. 10 is a schematic structural diagram of through holes on a flow-resisting dust collecting plate of an electric dust collector with a filtering type porous anode plate and second bulges on the flow-resisting dust collecting plate according to a preferred embodiment of the invention;
fig. 11 is a schematic view showing the overall structure of an electric dust collector having a net with attached dust according to a preferred embodiment of the present invention.
The reference numbers illustrate:
1-Corona electrode
2-anode plate
3-choking dust collecting plate
4-porous dust collecting plate
21-first substrate body
22-first bent end
23-first through hole
24-first reinforcing rib
31-second substrate body
32-second bending end
33-second through hole
34-second reinforcing bar
41-third substrate body
42-third bend end
43-third through hole
44-third reinforcing rib
11-column
12-beam
13-horizontal lacing wire
5-first projection
6-second projection
7-dust-attached net
Detailed Description
The invention is explained in more detail below with reference to the figures and examples. The features and advantages of the present invention will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the electric dust collector with the filtering type porous anode plate provided by the invention, as shown in fig. 1, fig. 2 and fig. 3, the dust collector comprises more than three anode strips which are arranged in parallel, 6 anode strips as shown in fig. 1 are preferably arranged in the invention, 8 anode strips, 10 anode strips and the like can also be arranged according to actual use requirements, a plurality of corona electrodes 1 are arranged between two adjacent anode strips,
the anode belts comprise two outer anode belts positioned at the outermost side and an inner anode belt positioned between the two outer anode belts, namely only two outer anode belts are provided, and the rest are inner anode belts,
the outer anode strip and the inner anode strip both comprise a plurality of anode plates 2 arranged side by side, and preferably, a corona electrode 1 is arranged between two opposite anode plates on two adjacent anode strips;
the anode plate of the inner side anode strip is provided with a through hole, and the through hole can be used for smoke to pass through.
In a preferred embodiment, as shown in fig. 1, 4 and 5, flow blocking dust collecting plates 3 are respectively arranged at two ends of the anode belts, namely at the air inlet end and the air outlet end, and the width of each flow blocking dust collecting plate 3 is substantially equal to the distance between two adjacent anode belts; preferably, a small gap is left between the flow resisting dust collecting plate 3 and the anode strip and the anode plate 2;
each flow resisting dust collecting plate 3 can shield one channel, and the channel is a channel for gas to flow between two adjacent anode belts;
further preferably, the flow-resisting dust-collecting plate 3 arranged at the air inlet end only shields the channel formed by the inner anode belt, namely, the flow-resisting dust-collecting plate 3 arranged at the air inlet end is not adjacent to the outer anode belt;
one or more channels are arranged between every two adjacent flow resisting dust collecting plates 3 arranged at the same end of the anode belt at intervals, or no channels are arranged at intervals, and the specific situation can be determined according to the actual processing requirement;
preferably, the choke dust collecting plate 3 is provided with a through hole;
because the flow resisting dust collecting plate 3 at the air inlet end is provided with the through holes, the flow resisting dust collecting plate 3 can not completely obstruct the passing of the smoke and only can reduce the passing of the smoke; part of the flue gas entering the electric dust collector from the air inlet end is blocked, the flow of the flue gas in a channel without the flow blocking dust collecting plate 3 at the air inlet end is larger, and the flow of the flue gas in a channel with the flow blocking dust collecting plate 3 at the air inlet end is smaller;
preferably, the flow blocking dust collecting plates 3 arranged at the air inlet end and the flow blocking dust collecting plates 3 arranged at the air outlet end are arranged in a staggered manner; specifically, the two ends of each passage are only provided with one flow blocking dust collecting plate 3 at most, and the two flow blocking dust collecting plates 3 are not oppositely arranged at the two ends of the same passage.
In the invention, the flow direction of the flue gas at the air inlet end is changed by the flow-resisting dust collecting plate 3 and the anode plate 2;
preferably, the baffle 3 allows the amount of flue gas directly entering each channel to be different,
wherein, the smoke amount in the channel blocked by the flow blocking dust collecting plate 3 is less than the smoke amount in the channel which is not blocked,
therefore, the flow rates of gas in different channels are different, the anode plate at the edge of the channel is also provided with through holes communicated with adjacent channels, and under the action of the flowing pressure, the through holes in the anode plate 2 enable the smoke in the channel with the air inlet end not shielded to enter the adjacent channels, so that part of the smoke passes through the through holes in the anode plate.
In a preferred embodiment, as shown in fig. 1, 6 and 7, a porous dust collecting plate 4 is further disposed at the air outlet end, and through holes are opened on the porous dust collecting plate 4;
the porous dust collecting plate 4 is disposed at the outer side of the choke dust collecting plate 3,
the flow blocking dust collecting plates 3 arranged at the air outlet end and the porous dust collecting plates 4 are arranged in a staggered manner, that is, the flow blocking dust collecting plates 3 arranged at the air outlet end and the porous dust collecting plates 4 correspond to different channels, as shown in fig. 1.
In a preferred embodiment, the anode plate 2, the flow-resisting dust-collecting plate 3 and the porous dust-collecting plate 4 are all grounded anodes, and can be used for adsorbing charged particles.
In a preferred embodiment, the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4 are all in the shape of a strip groove and are formed by bending two long edges of a strip plate towards the same side;
preferably, the anode plate 2 and the porous dust collecting plate 4 are both provided with more than two pairs of bending areas;
preferably, the choke dust collecting plate 3 has only one pair of bending regions, and the bending angle thereof may be set according to actual conditions, so as to achieve the choke dust collecting effect, and is not particularly limited herein.
Preferably, reinforcing ribs are arranged on the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4.
Further preferably, the anode plate 2 includes a first substrate body 21 and a first bending end 22, and the first bending end is obtained by bending for multiple times and is used for splicing and combining with an adjacent anode plate;
the through-hole provided in the anode plate 2 constituting the inner anode strip is referred to as a first through-hole 23;
the reinforcing ribs arranged on the anode plate 2 are called as first reinforcing ribs 24, the first reinforcing ribs 24 include transversely arranged and vertically arranged reinforcing ribs, no first through holes 23 are arranged in the first reinforcing ribs 24 and the bending areas, and a plurality of first through holes 23 which are densely arranged are arranged in other areas of the first substrate body 21 and the bending end 22, as shown in fig. 2 and 3;
preferably, as the length direction of the anode plate 2 gradually goes downwards, the aperture of the first through hole 23 gradually becomes larger, and the distance between the adjacent first through holes 23 gradually decreases.
The choke dust collecting plate 3 comprises a second substrate body 31 and a second bent end 32, and an included angle of a certain angle is formed between the second bent end 32 and the second substrate body 31, and the included angle can be set according to actual conditions, such as any angle in 30-80 degrees;
the through holes provided on the flow resisting dust collecting plate 3 are referred to as second through holes 33;
the reinforcing ribs arranged on the baffle dust collecting plate 3 are called as second reinforcing ribs 34, the second reinforcing ribs 34 include transversely arranged and vertically arranged reinforcing ribs, second through holes 33 are not arranged in the second reinforcing ribs 34 and the bending areas, and a plurality of second through holes 33 which are densely arranged are arranged in other areas of the second base plate body 31 and the second bending end 32, as shown in fig. 4 and 5;
preferably, the diameter of the second through holes 33 is gradually increased and the distance between the adjacent second through holes 33 is gradually decreased as the choke plate 3 is gradually lowered in the length direction.
Preferably, the multi-hole dust collecting plate 4 as shown in fig. 6 and 7 includes a third base plate body 41 and a third bent end 42, the third bent end 42 and the third base plate body 41 have an included angle therebetween, which may be set according to practical circumstances, such as any angle-of 30-80 degrees; the middle part of the third base plate body 41 protrudes towards the bending direction of the third bending end 42, so that the overall cross-sectional shape of the porous dust collecting plate 4 is wave-like;
the through-holes provided on the porous dust collecting plate 4 are referred to as third through-holes 43;
the reinforcing ribs arranged on the porous dust collecting plate 4 are called as third reinforcing ribs 44, the third reinforcing ribs 44 comprise transversely arranged reinforcing ribs and vertically arranged reinforcing ribs, third through holes 43 are not arranged in the third reinforcing ribs 44 and the bending areas, and a plurality of third through holes 43 which are densely arranged are arranged in the other areas of the third base plate body 41 and the third bending end 42;
the anode plate, the flow resisting dust collecting plate and the porous dust collecting plate are 8-16 m in overall length, can be spliced or integrally formed in a sectional mode, and are 1.5-2mm in thickness.
In a preferred embodiment, as shown in fig. 8, a suspension device is provided on the top of the electric dust collector, and the anode plate 2, the flow-resisting dust collecting plate 3 and the porous dust collecting plate 4 are all independently mounted on the suspension device; the suspension device comprises upright posts 11 positioned at the front side and the rear side of the electric dust collector, a cross beam 12 is erected at the top between the front upright post 11 and the rear upright post 11, mounting holes are processed in the cross beam 12, an anode plate 2, a flow blocking dust collecting plate 3 and a porous dust collecting plate 4 are hung through the mounting holes, the cross beam 12 can be integrally mounted, and 3-5 m of each section can be sequentially connected between each section and fixed by bolts;
preferably, after the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4 are integrally arranged, two horizontal tie bars 13 are arranged in the middle of the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4, and the horizontal tie bars 13 are firmly fixed on the anode plate 2, the flow resisting dust collecting plate 3 and the porous dust collecting plate 4, so that the swinging of the anode plate, the flow resisting dust collecting plate and the porous dust collecting plate is prevented and the;
in a preferred embodiment, an electromagnetic rapping device is arranged on the suspension device at the top of the electric dust collector, and comprises a plurality of rapping hammers, wherein one rapping hammer is respectively arranged at the top of each anode plate 2, at the top of each flow resisting dust collecting plate 3 and at the top of each porous dust collecting plate 4, and dust adsorbed on the anode plate 2, the flow resisting dust collecting plates 3 and the porous dust collecting plates 4 falls off into a dust collecting device at the bottom through rapping of the rapping hammers; the working frequency of the electromagnetic vibrator close to the air inlet end is higher than that of the vibrating hammer close to the air outlet end, so that the working conditions of different areas with different smoke dust concentrations are adapted;
further preferably, this electromagnetic rapping device includes power device, such as solenoid, and the vertical stick of beating that sets up that directly links to each other with power device, still include a plurality of and shake the stick and link to each other and be used for hitting the rapping bar, further preferably, the rapping device is located the outside of electrostatic precipitator, can shake the stick and shake the operating frequency that beats the hammer through external control end regulation/change a part under the unchangeable circumstances of rapping bar and rapping bar, can be directed against arbitrary emergency, take powerful counter-measure under the circumstances of not stopping work, if increase the rapping frequency, make the passageway or the through-hole that are blockked up by the deposition unblocked once more.
In a preferred embodiment, as shown in fig. 9, a plurality of first through holes 23 are opened in the anode plate 2 constituting the inner anode strip, first protrusions 5 are provided in the first through holes 23,
the first protrusion is located inside the first through hole 23, protrudes from a wall surface of one side of the first through hole 23, and is directed to a wall surface of the other side of the through hole; preferably, the first protrusion protrudes from bottom to top;
the first protrusion 5 has at least three edges, and a plurality of edges converge at the highest point of the first protrusion, preferably, the first protrusion 5 has 4 edges, i.e. the first protrusion has a tetrahedron shape, and one surface is embedded in the inner wall of the first through hole;
first arch is located the first through-hole of anode plate, receives the rapping of electromagnetic rapping ware at the anode plate, first arch also can vibrate thereupon, passes through at this moment through debris such as dust particle that adsorb the gathering in first bellied edge cutting, the broken first through-hole make it drop completely fast, avoid anode plate and first through-hole to appear hanging grey phenomenon, ensure that the anode plate can last high-efficient work.
In addition, only one first bulge is arranged in the first through hole, namely only one tip is arranged, so that the concentrated adsorption of charged dust particles passing through the first through hole is facilitated, and the electrostatic adsorption effect of the anode plate is further improved;
in a preferred embodiment, as shown in fig. 10, a plurality of second through holes 33 are opened on the choke dust collecting plate 3, second protrusions 6 are provided in the second through holes 33,
a plurality of the second protrusions 6, preferably 2 to 10,
preferably, the second protrusion 6 is located inside the second through hole 33, protruding from a wall surface of one side of the second through hole 33, and directed to a wall surface of the other side of the through hole; preferably, the plurality of second protrusions 6 in the second through holes 33 are adjacent to each other, having a shearing action effect when vibrating;
the second protrusion 6 has four edges, and the four edges converge to the highest point of the second protrusion, i.e. the second protrusion is tetrahedron-shaped, and one of the faces is embedded in the inner wall of the second through hole.
Similar to the first and second through holes, protrusions may also be optionally provided on the third through holes of the porous dust collecting plate 4 to improve the vibratory dust removal effect.
In a preferred embodiment, as shown in fig. 11, a dust attaching net 7 is further arranged in the electric dust collector, the dust attaching net 7 is a metal net, the mesh aperture size of the metal net is large, and the mesh aperture size is 2-5 mm; the dust-attached net 7 is arranged in the channel perpendicular to the advancing direction of the flue gas;
preferably, a plurality of dust-attached nets 7 are arranged in a channel without a flow-resisting dust collecting plate at an air inlet end, and further, the dust-attached nets 7 are arranged between two adjacent corona electrodes 1 of the channel, namely, the dust-attached nets 7 and the corona electrodes are arranged in a staggered manner;
the dust-attached net 7 is also a grounded positive electrode and is positively charged, dust particles with negative charge can be adsorbed, and in the channel, the dust-attached net 7 can quickly enrich the dust particles, so that certain obstruction is caused to the positive flow of the flue gas, more flue gas is promoted to pass through the anode plate, and the flue gas balance in the electric dust collector is further adjusted;
an electromagnetic rapping device is also arranged on the top of the dust-attached net 7, and can rap the dust-attached net 7 according to a preset frequency so as to prevent the dust-attached net 7 from being completely blocked by dust.
Example one
Performing electrostatic dust removal treatment on the dust-containing flue gas by using an electric dust remover, wherein the flow velocity of the dust-containing flue gas is 1m3The electric dust collector is provided with a flow choking dust collecting plate and a porous dust collecting plate, a through hole is formed in an anode of the electric dust collector, no bulge is arranged in the through hole, and a dust attaching net is not arranged in the electric dust collector; the PM2.5 content in the dust-containing flue gas discharged from the electric dust remover, namely treated by the electric dust remover, is 3.1mg/m3。
Comparative example 1
The electrostatic dust removal treatment is carried out on the dust-containing flue gas by using an electric dust remover, wherein the dust-containing flue gas to be treated is the same as the dust-containing flue gas in the embodiment, and the flow speed of the dust-containing flue gas to be treated is 1m3And/s, compared with the electric dust remover in the first embodiment, the electric dust remover only has the difference that the anode plate is not provided with the holes, and the PM2.5 content in the dust-containing flue gas treated by the electric dust remover is 6.9mg/m3。
Comparative example No. two
The electrostatic dust removal treatment is carried out on the dust-containing flue gas by using an electric dust remover, wherein the dust-containing flue gas to be treated is the same as the dust-containing flue gas in the embodiment, and the flow speed of the dust-containing flue gas to be treated is 1m3And/s, compared with the electric dust remover in the first embodiment, the electric dust remover only has the difference that no flow resisting dust collecting plate and no porous dust collecting plate are arranged, and the PM2.5 content in the dust-containing smoke treated by the electric dust remover is 5.7mg/m3。
Example two
The electrostatic dust removal treatment is carried out on the dust-containing flue gas by using an electric dust remover, wherein the dust-containing flue gas to be treated is the same as the dust-containing flue gas in the embodiment, and the flow speed of the dust-containing flue gas to be treated is 1m3The electric dust collector is provided with a flow choking dust collecting plate and a porous dust collecting plate, wherein a through hole is formed in an anode, a bulge is arranged in the through hole, and a dust attaching net is also arranged in the electric dust collector; the PM2.5 content in the dust-containing flue gas treated by the electric dust collector is 1.8mg/m3。
According to the experimental example and the comparative example, the dust removing capacity can be effectively improved and the content of PM2.5 in tail gas can be reduced by arranging the through holes on the anode plate and arranging the flow blocking dust collecting plate and the porous dust collecting plate, the dust collector is further provided with the dust attaching net, and the dust removing capacity can be further improved and the content of PM2.5 in the tail gas can be further reduced by arranging the protrusions in the through holes.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on an operating state of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention has been described above in connection with preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the invention can be subjected to various substitutions and modifications, and the substitutions and the modifications are all within the protection scope of the invention.
Claims (8)
1. An electric dust collector with a filtering type porous anode plate is characterized by comprising more than three anode strips which are arranged in parallel,
a plurality of corona electrodes (1) are arranged between two adjacent anode strips,
the anode strips comprise two outer anode strips positioned at the outermost side and an inner anode strip positioned between the two outer anode strips,
the outer anode strip and the inner anode strip both comprise a plurality of anode plates (2) which are arranged side by side,
a plurality of first through holes (23) are formed in the anode plate (2) of the inner side anode strip, and first bulges (5) are arranged in the first through holes (23);
two ends of the anode belt, namely an air inlet end and an air outlet end are respectively provided with a flow choking dust collecting plate (3),
the width value of the flow resisting dust collecting plate (3) is basically equal to the distance value between two adjacent anode belts;
each flow blocking dust collecting plate (3) can shield one channel, and the channel is a channel for gas to flow between two adjacent anode belts;
a small gap is reserved between the flow choking dust collecting plate (3) and the anode strip and the anode plate (2);
the flow choking dust collecting plate (3) arranged at the air inlet end only shields a channel formed by the inner side anode belt; a through hole is formed in the flow resisting dust collecting plate (3), the through hole arranged in the flow resisting dust collecting plate (3) is called a second through hole (33), and a second bulge (6) is arranged in the second through hole (33);
the air outlet end is also provided with a porous dust collecting plate (4), and the porous dust collecting plate (4) is provided with a through hole;
the porous dust collecting plate (4) is arranged on the outer side of the flow resisting dust collecting plate (3),
the flow choking dust collecting plates (3) arranged at the air outlet end and the porous dust collecting plates (4) are arranged in a staggered manner;
the anode plate (2), the flow choking dust collecting plate (3) and the porous dust collecting plate (4) are all in the shape of a strip groove and are formed by bending two long edges of a strip plate towards the same side; the anode plate (2) and the porous dust collecting plate (4) are provided with more than two pairs of bending areas;
still be provided with in the electrostatic precipitator and attach dirt net (7), it has a plurality ofly to attach dirt net (7), sets up in the air inlet end does not have the passageway of choked flow dust collecting plate.
2. The electric precipitator with filtering porous anode plates according to claim 1,
the flow choking dust collecting plates (3) arranged at the air inlet end and the flow choking dust collecting plates (3) arranged at the air outlet end are arranged in a staggered manner.
3. The electric precipitator with filtering porous anode plates according to claim 2,
the flow direction of the flue gas at the air inlet end is changed through the flow blocking dust collecting plate (3) and the anode plate (2);
the flow resisting and dust collecting plates (3) ensure that the amount of the smoke directly entering each channel is different,
wherein the smoke amount in the channel blocked by the flow blocking dust collecting plate (3) is less than the smoke amount in the channel which is not blocked,
the through holes on the anode plate (2) enable the smoke in the channel with the air inlet end not shielded to enter the adjacent channel.
4. The electric dust collector with the filtering type porous anode plate according to one of claims 1 to 3,
the anode plate (2), the flow choking dust collecting plate (3) and the porous dust collecting plate (4) are all grounded anodes.
5. The electric dust collector with the filtering type porous anode plate according to one of claims 1 to 3,
the flow resisting dust collecting plate (3) is provided with only one pair of bending areas.
6. The electric dust collector with the filtering type porous anode plate according to one of claims 1 to 3,
and reinforcing ribs are arranged on the anode plate (2), the flow resisting dust collecting plate (3) and the porous dust collecting plate (4).
7. The electric dust collector with the filtering type porous anode plate according to one of claims 1 to 3,
the top of the electric dust collector is provided with a suspension device, and the anode plate (2), the flow blocking dust collecting plate (3) and the porous dust collecting plate (4) are all independently installed on the suspension device.
8. The electric precipitator with filtering porous anode plates according to claim 7,
and an electromagnetic vibrator is arranged on the suspension device at the top of the electric dust collector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711465321.9A CN108160332B (en) | 2017-12-28 | 2017-12-28 | Electric dust collector with filtering type porous anode plate |
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| CN201711465321.9A CN108160332B (en) | 2017-12-28 | 2017-12-28 | Electric dust collector with filtering type porous anode plate |
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| CN108160332A CN108160332A (en) | 2018-06-15 |
| CN108160332B true CN108160332B (en) | 2019-12-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109013059A (en) * | 2018-07-19 | 2018-12-18 | 浙江菲达环保科技股份有限公司 | A kind of dry electric precipitation device with web plate composite anode plate |
| CN111871611A (en) * | 2020-08-14 | 2020-11-03 | 马培川 | Dust removal device with air purification, sterilization and disinfection functions and dust removal method |
| CN112742602A (en) * | 2021-01-19 | 2021-05-04 | 国电环境保护研究院有限公司 | Cathode and anode module for strengthening dust collection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741235A (en) * | 2013-12-27 | 2015-07-01 | 武汉龙净环保科技有限公司 | Electric dust collector capable of remarkably improving dust collection efficiency |
| CN205518222U (en) * | 2016-04-20 | 2016-08-31 | 北京信实德电气设备有限公司 | Porous board that gathers dust of footpath STREAMING |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741235A (en) * | 2013-12-27 | 2015-07-01 | 武汉龙净环保科技有限公司 | Electric dust collector capable of remarkably improving dust collection efficiency |
| CN205518222U (en) * | 2016-04-20 | 2016-08-31 | 北京信实德电气设备有限公司 | Porous board that gathers dust of footpath STREAMING |
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Address after: 221744 Ecological Garden West, Huashan Town, Fengxian County, Xuzhou, Jiangsu Patentee after: Jiangsu kaslaite Environmental Protection Technology Co., Ltd Address before: 221744 Ecological Garden West, Huashan Town, Fengxian County, Xuzhou, Jiangsu Patentee before: Jiangsu kaspis Environmental Protection Technology Co., Ltd. |