CN110252511B - A wet electrostatic precipitator - Google Patents

Abstract

The invention relates to a wet electrostatic dust removal device, comprising: a dust removal box body, an ash hopper, a dust suction component, a corona pole wire and a power supply device; the dust removal box body has an air inlet and an air outlet, and the hopper mouth of the ash hopper is installed upward on the lower side wall of the dust-removing box; the dust-absorbing assembly includes a conductive fiber belt electrode, a plurality of upper traction rollers and a plurality of lower traction rollers; the conductive fiber belt electrode and a plurality of the upper traction rollers and a plurality of The lower traction roller is driven and matched; the corona pole line is arranged in the enclosed space with the opening of the conductive fiber belt electrode facing upward or the enclosed space with the opening facing downward; the polar output end of the power supply device is respectively connected with the conductive fiber belt electrode. It is electrically connected to the corona electrode wire. It solves the problem of low dust removal efficiency that the dust collecting electrode of the wet electrostatic precipitator cannot be fully cleaned after dust collection.

Description

A wet electrostatic precipitator

technical field

The invention relates to the technical field of environmental protection equipment, in particular to a wet electrostatic precipitator.

Background technique

At present, wet electrostatic precipitator is widely used in chemical, metallurgical and coal-fired power plants to purify flue gas after desulfurization towers, and it is one of the most effective methods to control dust emissions.

However, in the actual operation of the traditional wet electrostatic precipitator technology, most of the dust collector plates are made of metal plates. When the plates are sprayed with water, the flushing water is unevenly distributed on the plates, which will cause "channeling". The phenomenon, where the water cannot be washed, is prone to fouling, which affects the dust removal efficiency of the dust collector and causes the dust collector to malfunction and other problems.

SUMMARY OF THE INVENTION

In order to solve the problem that the dust collecting electrode of the wet electrostatic precipitator cannot be sufficiently cleaned after dust collection, resulting in low dust removal efficiency, the present invention provides a wet electrostatic precipitator.

The present invention provides a wet electrostatic precipitator, comprising:

The dust removal box has an air inlet and an air outlet, and the lower side wall of the dust removal box is provided with an installation port;

an ash hopper, the hopper mouth of the ash hopper is installed on the lower side wall of the dust removal box body, and the hopper mouth is sealedly connected with the installation mouth;

The dust suction assembly includes conductive fiber belt electrodes, a plurality of upper traction rollers and a plurality of lower traction rollers; a plurality of the upper traction rollers are arranged in the inner cavity of the dust removal box at intervals along the front and rear directions; a plurality of the lower traction rollers The rollers are arranged at intervals in the inner cavity of the dust removal box along the front and rear directions and are located on the lower side of the plurality of upper pulling rollers; the conductive fiber belt electrode is connected to a plurality of the upper pulling rollers and a plurality of the lower pulling rollers The belt drive cooperates so that the conductive fiber belt electrodes wound around each of the plurality of upper traction rollers form an enclosed space with an opening facing downward on the front and rear sides of the transmission direction, and each of the plurality of lower traction rollers is formed. A wound conductive fiber strip electrode forms an enclosed space with an upward opening on the front and rear sides of the transmission direction; wherein, at least one of the plurality of upper traction rollers and the plurality of lower traction rollers is a driving roller, and a plurality of the At least one of the lower traction rollers extends downward into the ash hopper arrangement;

The corona electrode wire is arranged in the enclosed space with the opening facing upward or the enclosed space facing downward, and is insulated from the conductive fiber strip electrode;

In the power supply device, the positive and negative output ends are electrically connected to the conductive fiber strip electrode and the corona electrode wire in sequence.

The beneficial effect of adopting the above scheme is: through the dust collecting assembly and the corona pole wire set as above, after the dust-laden gas enters through the air inlet of the dust removal box, it first passes through the corona pole wire and the conductive fiber belt. A wire-plate electric field composed of electrodes, the corona pole lines generate corona discharge to make the dust in the dust-laden air flow negatively charged, and the charged dust moves to the conductive fiber cloth electrode under the action of the electric field force, and settles on the conductive fiber belt. on the electrode. The dust settled on the conductive fiber belt electrode is stuck by water and becomes mud. With the movement of the conductive fiber belt electrode, it is cleaned by the water in the ash hopper at the lower traction roller extending into the ash hopper. It is realized that the surface of the conductive fiber belt electrode is evenly coated with a water film, which facilitates continuous and efficient dust removal and improves the dust removal efficiency.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The wet electrostatic precipitator further includes an air inlet box and an air outlet box, an air outlet end of the air inlet box is arranged in communication with the air inlet, and an inlet end of the air outlet box is arranged in communication with the air outlet.

The beneficial effects of adopting the above-mentioned further scheme are:

The arrangement of the air inlet box and the air outlet box can reduce the noise of gas entering and exiting the dust removal box, and reduce the noise pollution of the device.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The air inlet box and the connection between the air outlet box and the dust removal box are all provided with an air distribution plate, and the air distribution plate includes a plate body and an air distribution uniformly distributed on the plate body. hole.

The beneficial effect of adopting the above-mentioned further scheme is that the gas can be distributed evenly in the dust removal box after passing through the air distribution plate, so that the dust-containing gas flowing through the dust removal box can be fully contacted with the conductive fiber belt electrodes , thereby improving the dust removal efficiency of the device.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The upper traction roller and the lower traction roller are both provided with annular grooves, and the side of the conductive fiber strip electrode that is matched with the lower traction roller or the upper traction roller is along the length of the conductive fiber strip electrode A rib is provided in the direction, and the rib is used for cooperating with the annular groove to limit the position of the conductive fiber strip electrode in the axial direction of the upper pulling roller or the lower pulling roller.

The beneficial effects of adopting the above-mentioned further scheme are:

The rib on the conductive fiber belt electrode is arranged in cooperation with the upper pulling roller or the lower pulling roller, so that the conductive fiber belt electrode cooperates with the belt drive of the upper pulling roller or the lower pulling roller when the belt drive is matched. The conductive fiber belt electrode can be limited in the axial direction of the upper traction roller or the lower traction roller, which reduces the possibility of the conductive fiber belt electrode being unrolled, thereby improving the dust removal efficiency. device safety.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The corona pole line includes at least one of a circular line, a star-shaped line, a zigzag line, and an angle-steel barbed line.

The beneficial effects of adopting the above-mentioned further scheme are: the corona pole line is selected from one of the above corona pole lines, which is convenient for model selection and can be configured according to economy and actual needs.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The distance between the corona electrode line and the conductive fiber strip electrode is 100 to 500 mm.

The beneficial effects of adopting the above-mentioned further scheme are:

The above distance setting of the corona pole line not only avoids that the distance between the corona pole line and the conductive fiber belt electrode is too close to cause excessive discharge times, but also avoids the distance between the corona pole line and the conductive fiber. The distance between the fiber belt electrodes is too long, resulting in too few discharge times, resulting in poor discharge effect and insufficient dust removal, which saves electricity and ensures the efficiency of dust removal.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The inner side of the ash hopper is provided with a scraper at the corresponding position of the lower traction roller extending downward into the ash hopper, and the scraper is arranged in contact with the conductive fiber belt electrode.

The beneficial effects of adopting the above-mentioned further scheme are:

The setting of the mud scraper enables the conductive fiber belt electrode to scrape off the muddy water that has not been washed away after passing through the water ash hopper, and at the same time scrape the water film on the conductive fiber belt electrode evenly, increasing the The contact area between the water film on the conductive fiber belt electrode and the dust-containing gas is increased, and the dust removal efficiency of the dust removal device is further increased.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The included angle between the scraper and the width direction of the conductive fiber strip electrode is 15°.

The beneficial effects of adopting the above-mentioned further scheme are:

The angle between the scraper and the width direction of the conductive fiber strip electrode is set so that the muddy water scraped by the mud scraper concentrates and falls from one side of the ash hopper, avoiding the scraped muddy water to the The water quality in the upper and middle layers of the ash hopper causes excessive pollution, thereby ensuring that the water film stained by the conductive fiber belt electrode from the ash hopper is relatively clean, and thus can continue to efficiently absorb the dust-laden gas flowing through the dust removal box. Thus, the dust removal efficiency of the device is improved.

On the basis of above-mentioned technical scheme, the present invention can also do following improvement:

The conductive fiber strip electrodes are arranged in multiple groups at intervals in the axial direction of the upper pulling roller or the lower pulling roller, and the corona pole lines are provided in multiple groups corresponding to the conductive fiber strip electrodes.

The beneficial effect of adopting the above-mentioned further scheme is that the multiple sets of the conductive fiber tapes and the corona pole wires can be dismantled and repaired in different parts. The usage time of the device.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic perspective view of a wet electrostatic precipitator device for removing the front side panel of a dust removal box according to an embodiment of the present invention;

Fig. 2 is the three-dimensional schematic diagram of the dust removal box in Fig. 1;

Figure 3 is a schematic diagram of the installation positions of the upper traction roller and the lower traction roller and the conductive fiber strip electrodes in Figure 1;

4 is a schematic diagram of the cooperation of the upper pulling roller and the lower pulling roller and the conductive fiber belt in FIG. 1;

Figure 5 is a schematic diagram of the positional relationship between the lower traction roller and the scraper in Figure 1;

FIG. 6 is a schematic diagram of the connection between the conductive fiber strip electrode and the corona electrode wire and the power supply device in FIG. 1 .

Reference number:

label name label name 1 Dust box 11 air intake 12 air outlet 13 Mounting port 14 Air distribution board 141 plate body 142 Evening hole 2 Hopper twenty one Doukou twenty two scraper 31 Conductive fiber with electrodes 311 Rib 32 upper traction roller 33 Lower traction roller 34 annular groove 4 Corona pole line 5 power supply unit 6 air intake box 7 air box

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

In order to solve the problem that the dust collecting electrode of the wet electrostatic precipitator cannot be fully cleaned after dust collection, which leads to low dust removal efficiency, please refer to FIGS. 1 to 6 . An embodiment of the present invention provides a wet electrostatic precipitator, including: a dust removal box 1 , ash hopper 2, dust collection components, corona pole line 4 and power supply device 5. The dust removal box 1 has an air inlet 11 and an air outlet 12, and the lower side wall of the dust removal box 1 is provided with an installation port 13. It should be noted that in this embodiment, the air inlet 11 and the The air outlet 12 is arranged on the horizontally opposite sides of the dust removal box 1. The shape of the air outlet 12 and the air inlet 11 is not limited to the square shown in the figure, and a circle or other shapes are also included in the present invention. within the protection range; the bucket mouth 21 of the ash hopper 2 is upwardly installed on the lower side wall of the dust removal box 1, and the bucket mouth 21 is sealed with the installation opening 13, that is, the The bucket mouth 21 is connected with the installation mouth 13 through a seal or sealant; the dust suction assembly includes a conductive fiber belt electrode 31, a plurality of upper pulling rollers 32 and a plurality of lower pulling rollers 33, the conductive fiber belt The electrode 31 is a roller belt made of conductive fibers, and the number of the plurality of upper traction rollers 32 and the plurality of lower traction rollers 33 can be four as shown in FIG. A plurality of the upper traction rollers 32 are arranged in the inner cavity of the dust removal box 1 at intervals in the front and rear directions; a plurality of the lower traction rollers 33 are arranged in the dust removal box at intervals in the front and rear directions. The inner cavity of the body 1 and is located on the lower side of the plurality of upper pulling rollers 32; the conductive fiber belt electrode 31 cooperates with the plurality of upper pulling rollers 32 and the plurality of lower pulling rollers 33 in a belt drive to make each The conductive fiber belt electrodes 31 wound around each of the plurality of upper pulling rollers 32 form an enclosed space with an opening facing downward on the front and rear sides of the conveying direction, that is, the conductive fiber belt electrodes 31 are drawn from one of the lower pulling rollers. 33 is wound upward, passes through one of the upper traction rollers 32, and then winds down to the lower traction roller 33 adjacent to the previous lower traction roller 33, the two lower traction rollers 33 and the one upper traction roller 32. The conductive fiber strip electrodes 31 in between are enclosed into a U-shaped enclosed space with an opening facing downward, and the conductive fiber strip electrodes 31 wound around each of the plurality of lower pulling rollers 33 are formed on the front and rear sides of the transmission direction. The enclosed space with the opening facing upward, that is, the conductive fiber strip electrode 31 is wound downward from one of the upper pulling rollers 32, then passes through a lower pulling roller 33, and then winds up to the same upper pulling roller 32 as the previous one. After the adjacent upper pulling rollers 32, the conductive fiber belt electrodes 31 between the two upper pulling rollers 32 and the one lower pulling roller 33 are enclosed into a U-shaped enclosed space with an opening facing upward; At least one of the upper traction roller 32 and the plurality of lower traction rollers 33 is a driving roller, and the driving roller is provided with a rotation driving device on the upper traction roller 32 or the lower traction roller 33, and the rotation driving device It can be a motor or a combination of a motor and a motion mechanism, such as the combination of a motor and a transmission belt. At least one of the plurality of lower traction rollers 33 extends downward into the ash hopper 2 and is arranged, that is, the part of the conductive fiber belt electrode 31 that is matched with the lower traction roller 33 that extends into the ash hopper 2 for transmission. The water body that can be immersed in the ash hopper after the ash hopper 2 is filled with water; the corona pole line 4 is arranged in the enclosed space with the opening facing upward or the enclosed space with the opening facing downward, and Insulated with the conductive fiber strip electrode 31, that is, after the corona electrode wire 4 is installed, it is located in the enclosed space with the opening facing upward or the enclosed space with the opening facing downward, and the corona electrode wire 4 can be It is fixed on the side wall of the dust removal box 1 through an insulating bracket; as shown in FIG. Connection, that is, the conductive fiber strip electrode 31 is connected to the positive electrode of the power supply device 5, and the corona electrode wire 4 is connected to the negative electrode of the power supply device. Of course, the power supply device 5 may include a booster circuit and the like.

In this embodiment, the dust-containing gas enters through the air inlet 11 of the dust-removing box 1 through the dust-collecting assembly and the corona wire 4 set as above, and firstly passes through the corona wire 4 and the conductive fibers The wire-plate electric field composed of the electrode 31, the corona electrode line 4 generates a corona discharge to make the dust in the dust-laden air flow negatively charged, and the charged dust moves to the conductive fiber electrode 31 under the action of the electric field force, and settles. On the conductive fiber strip electrode 31 . The dust settled on the conductive fiber belt electrode 31 is stuck by water and becomes mud. With the movement of the conductive fiber belt electrode 31, the dust in the ash hopper 2 is absorbed by the water in the ash hopper 2 at the lower traction roller 33 set in the ash hopper 2. At the same time of cleaning, the surface of the conductive fiber belt electrode 31 is evenly coated with a water film, which facilitates continuous and efficient dust removal and improves the dust removal efficiency.

In the embodiment of the present invention, as shown in FIG. 1 and FIG. 2 , the wet electrostatic precipitator further includes an air intake box 6 and an air outlet box 7 , and the air outlet end of the air intake box 6 communicates with the air inlet 11 . That is to say, the air outlet end of the air inlet box 6 is connected to the air inlet 11 through a sealing structure, and the air inlet end of the air outlet box 7 is communicated with the air outlet 12. The air inlet end is connected to the air outlet 12 through a sealing structure. The arrangement of the air inlet box 6 and the air outlet box 7 can reduce the noise of gas entering and exiting the dust removal box 1, and reduce the noise pollution of the device.

In order to increase the contact between the dust-laden gas and the conductive fiber strip electrode 31 , in this embodiment, as shown in FIG. 1 and FIG. The air distribution plates 14 are evenly spaced apart, and the air distribution plates 14 include a plate body 141 and air distribution holes 142 evenly distributed on the plate body 141 . The gas can be distributed evenly in the dust removal box 1 after passing through the air distribution plate 14, so that the dust-laden gas flowing through the dust removal box 1 can fully contact the conductive fiber belt electrodes 31, thereby improving the performance of the dust removal box 1. The dust removal efficiency of the device is improved.

In the embodiment of the present invention, please refer to FIG. 1 , FIG. 3 and FIG. 4 , the upper pulling roller 32 and the lower pulling roller 33 are provided with annular grooves 34 , and the conductive fiber belt electrode 31 is connected to the The lower pulling roller 33 or the upper pulling roller 32 is matched with a rib 311 along the length direction of the conductive fiber belt electrode 31 , and the length direction of the conductive fiber belt electrode 31 is the conductive fiber belt electrode 31 . The rib 311 is used to cooperate with the annular groove 34 to limit the position of the conductive fiber strip electrode 31 in the axial direction of the upper pulling roller 32 or the lower pulling roller 33 . The rib 311 on the conductive fiber strip electrode 31 cooperates with the upper pulling roller 32 or the lower pulling roller 33, so that the conductive fiber strip electrode 31 is pulled together with the upper pulling roller 32 or the lower pulling roller 33. When the belt drive of the roller 33 cooperates, the conductive fiber belt electrode 31 can be limited in the axial direction of the upper pulling roller 32 or the lower pulling roller 33, which reduces the occurrence of the conductive fiber belt electrode 31 falling off. The possibility of roller accident is reduced, thereby improving the safety of the dust removal device.

In the implementation of the present invention, the corona pole wire 4 includes at least one of a circular wire, a star wire, a zigzag wire, and an angle steel barbed wire. It should be noted that the circular wire, the star wire, the zigzag wire, and the angle steel barbed wire are all 4 types of corona polar wires available in the market. The corona pole wire 4 is selected from one of the above corona pole wires 4, which is convenient for the selection of the corona pole wire 4, and can be configured according to economy and actual needs.

Referring to FIG. 1 and FIG. 3 , the distance between the corona electrode wire 4 and the conductive fiber strip electrode 31 is 100 to 500 mm. The above distance setting of the corona pole line 4 not only avoids that the distance between the corona pole line 4 and the conductive fiber belt electrode 31 is too close to cause excessive discharge times, but also avoids the corona pole line 4. If the distance from the conductive fiber belt electrode 31 is too long, the number of discharges is too small, resulting in poor discharge effect and insufficient dust removal, which saves electric energy and ensures the efficiency of dust removal.

In the embodiment of the present invention, as shown in FIG. 1 , FIG. 3 and FIG. 5 , the inner side of the ash hopper 2 is provided with a scraper 22 at the corresponding position of the lower traction roller 33 extending downward into the ash hopper 2 , And the scraper 22 and the conductive fiber strip electrode 31 are attached to each other. The setting of the scraper 22 enables the conductive fiber belt to scrape off the muddy water that has not been washed away after passing through the water ash bucket 2, and at the same time scrape the water film on the conductive fiber belt electrode 31 evenly. , the contact area between the water film on the conductive fiber belt electrode 31 and the dust-containing gas is increased, and the dust removal efficiency of the dust removal device is further increased.

In the embodiment of the present invention, please refer to FIG. 1 , FIG. 3 and FIG. 5 , the included angle between the scraper 22 and the conductive fiber strip electrode 31 in the width direction is α, and the α is preferably 15°. It should be noted that the width direction of the conductive fiber belt electrode 31 is the direction parallel to the axial direction of the conductive fiber belt electrode 31 and the upper pulling roller 32 or the lower pulling roller 33, that is, the conductive fiber belt The belt surface of the electrode 31 is perpendicular to the transmission direction of the conductive fiber belt electrode 31 , and the angle between the scraper 22 and the width direction of the conductive fiber belt electrode 31 is set so as to be scraped by the scraper 22 The muddy water is concentrated from the side of the ash hopper 2, which avoids excessive pollution of the water quality in the middle and upper layers of the ash hopper 2 caused by the scraped mud water, thereby ensuring that the conductive fiber belt electrodes 31 are removed from the ash hopper. 2 The adhered water film is relatively clean, which can continue to efficiently absorb the dust-containing gas flowing through the dust removal box 1, thereby improving the dust removal efficiency of the device.

In the embodiment of the present invention, as shown in FIG. 1 , the conductive fiber strip electrodes 31 are provided with multiple groups at intervals in the axial direction of the upper pulling roller 32 or the lower pulling roller 33, and the corona electrode lines 4. There are a plurality of groups corresponding to the conductive fiber strip electrodes 31 . The conductive fiber strip electrodes 31 and the corona electrodes 4 are arranged in multiple groups, and can be dismantled and repaired in different parts. Even if one part is broken, the other part can continue to work after dismantling, which improves the service life of the equipment.

The reader should understand that in the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like are intended to be described in conjunction with that embodiment or example. The specific features, structures, materials or characteristics of the present invention are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (7)

1. A wet electrostatic precipitator, comprising:

the dust removal box body (1) is provided with an air inlet (11) and an air outlet (12), and the lower side wall of the dust removal box body (1) is provided with a mounting opening (13);

the ash bucket (2), a bucket opening (21) of the ash bucket (2) is upwards installed on the lower side wall of the dust removal box body (1), and the bucket opening (21) is in sealing connection with the installation opening (13);

a dust suction assembly including a conductive fiber band electrode (31), a plurality of upper drawing rollers (32) and a plurality of lower drawing rollers (33); the upper drawing rollers (32) are arranged in the inner cavity of the dust removal box body (1) at intervals in the front-back direction; the lower drawing rollers (33) are arranged in the inner cavity of the dust removal box body (1) at intervals in the front-back direction and are positioned on the lower sides of the upper drawing rollers (32); the conductive fiber band electrode (31) is in belt transmission fit with the upper drawing rollers (32) and the lower drawing rollers (33) so that the conductive fiber band electrode (31) wound around each upper drawing roller (32) forms an enclosed space with a downward opening at the front side and the rear side of the conveying direction, and the conductive fiber band electrode (31) wound around each lower drawing roller (33) forms an enclosed space with an upward opening at the front side and the rear side of the conveying direction; wherein at least one of the upper drawing rollers (32) and the lower drawing rollers (33) is a driving roller, and at least one of the lower drawing rollers (33) extends downwards into the ash hopper (2);

the corona polar line (4) is arranged in the enclosed space with the upward opening or the enclosed space with the downward opening and is insulated from the conductive fiber band electrode (31);

the positive and negative output ends of the power supply device (5) are electrically connected with the conductive fiber band electrode (31) and the corona polar line (4) in sequence;

a mud scraping plate (22) is arranged at the corresponding position of a lower traction roller (33) which extends into the ash bucket (2) downwards on the inner side of the ash bucket (2), and the mud scraping plate (22) is attached to the conductive fiber band electrode (31);

the included angle between the mud scraping plate (22) and the width direction of the conductive fiber band electrode (31) is 15 degrees.

2. A wet electrostatic precipitator according to claim 1, further comprising an inlet box (6) and an outlet box (7), wherein the outlet end of the inlet box (6) is communicated with the inlet (11), and the inlet end of the outlet box (7) is communicated with the outlet (12).

3. The wet electrostatic precipitator according to claim 2, wherein the air inlet box (6) and the connection between the air outlet box (7) and the precipitator body (1) are provided with an air distribution plate (14) at intervals, the air distribution plate (14) comprises a plate body (141), and the plate body (141) is provided with an air distribution hole (142).

4. The wet electrostatic precipitator of claim 1, wherein the upper pulling roll (32) and the lower pulling roll (33) are both provided with an annular groove (34), one side of the conductive fiber strip electrode (31) matched with the lower pulling roll (33) or the upper pulling roll (32) is provided with a convex rib (311) along the length direction of the conductive fiber strip electrode (31), and the convex rib (311) is used for being matched with the annular groove (34) to limit the axial direction of the conductive fiber strip electrode (31) on the upper pulling roll (32) or the lower pulling roll (33).

5. A wet electrostatic precipitator as claimed in claim 1, wherein the corona pole wires (4) comprise at least one of circular wires, star wires, saw tooth wires and angle iron barbed wires.

6. A wet electrostatic precipitator as claimed in claim 1, wherein the corona wire (4) is at a distance of 100 to 500mm from the conductive fibrous band electrode (31).

7. A wet electrostatic precipitator as claimed in claim 1, wherein the conductive fiber band electrode (31) is provided with a plurality of groups at intervals in an axial direction of the upper pulling roll (32) or the lower pulling roll (33), and the corona electrode line (4) is provided with a plurality of groups corresponding to the conductive fiber band electrode (31).

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