Flue gas electrostatic purification collector for power plant

Abstract

The invention relates to the technical field of purification collectors, and discloses a flue gas electrostatic purification collector for a power plant, which comprises a collector, an air inlet is formed in the left side of the collector, an air outlet is formed in the right side of the collector, an electrostatic dust collection unit is arranged in the collector, and a filter screen is fixedly connected in the collector. Power plant flue gas to be purified enters the collector from the gas inlet and is in direct contact with and scrubs the surface of the filter screen by arranging a cleaning brush driven by a motor, and meanwhile, a knocking mechanism is innovatively designed. And when the cleaning brush transversely moves, the first abutting rod is subjected to the fluctuating effect of the waved plate, the knocking rod is driven by the spring to do high-frequency reciprocating motion, and the filter screen is continuously knocked. The composite cleaning mode of brushing and high-frequency knocking can effectively shake off and remove dust particles embedded in the deep positions of the holes of the filter screen, the problem of deep blockage is fundamentally solved, and the lasting and efficient permeability and dust removal efficiency of the filter screen are ensured.

Description

Technical Field

[0001] This invention relates to the field of purification collector technology, specifically to an electrostatic purification collector for flue gas in power plants. Background Technology

[0002] Flue gas is a mixture of gases and dust, and is a major cause of atmospheric pollution in residential areas. The composition of flue gas is very complex. The gases include water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides, while the dust includes fuel ash, coal particles, oil droplets, and high-temperature pyrolysis products. Dust collectors are needed to treat the dust in the flue gas during the flue gas purification process.

[0003] For example, CN221182145U discloses a flue gas purification dust collector with impurity collection function, including a base plate. A dust collection box is fixedly connected to the top of the base plate. A horizontal plate is fixedly connected to the top of the inner cavity of the dust collection box. A partition is fixedly connected to the back side of the top of the horizontal plate. A first servo motor is fixedly connected to the top of the left side of the dust collection box. A screw is fixedly connected to the output end of the first servo motor. A threaded sleeve is threaded onto the surface of the screw. This flue gas purification dust collector with impurity collection function, by setting the screw, can drive the threaded sleeve to move horizontally. By setting the threaded sleeve, it can drive the scraper to move horizontally. By setting the scraper, it can push the impurities accumulated on the top of the filter screen to the right. By setting the collection screen, it can collect the impurities. By setting the retainer, it can easily remove the filter screen and collection screen for cleaning and impurity treatment.

[0004] Scraping alone cannot clean the deep pores of the filter screen. Dust will still remain deep inside the pores, eventually clogging the filter screen and affecting its dust filtration efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an electrostatic purification collector for flue gas in power plants, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an electrostatic purifier for flue gas in power plants, comprising a collector, an air inlet on the left side of the collector, an air outlet on the right side of the collector, an electrostatic dust removal unit inside the collector, and a filter screen fixedly connected inside the collector, wherein the flue gas to be purified from the power plant enters the collector from the air inlet. The flue gas first passes through the electrostatic precipitator unit of the collector. During this process, most of the dust particles in the flue gas are ionized and adsorbed onto the electrode plates under the action of a high-voltage electric field, achieving preliminary purification. The flue gas, after electrostatic treatment, continues to flow and passes through a filter screen fixedly connected inside the collector. The filter screen mechanically intercepts and deeply filters the fine particulate matter remaining in the flue gas, further reducing the dust content in the flue gas. The collector is equipped with a cleaning mechanism, which includes a motor fixedly connected to the top of the collector. A threaded rod is rotatably connected inside the collector, passing through the collector and fixedly connected to the motor via a coupling. A threaded sleeve is connected to the filter screen on the outer wall of the threaded rod. A horizontal plate is fixedly connected to the right side of the threaded sleeve, and a cleaning brush is fixedly connected to the back plate of the horizontal plate. The cleaning brush contacts the filter screen.

[0007] Preferably, the inside of the horizontal plate is provided with a first sliding groove, and a first slider is slidably connected inside the first sliding groove. A spring is fixedly connected between the first slider and the first sliding groove.

[0008] Preferably, a striking rod is fixedly connected to the right side of the first slider, a first abutting rod is fixedly connected to the left side of the first slider, a wave plate is fixedly connected inside the collector, and the first abutting rod contacts the wave plate.

[0009] Preferably, a vertical rod is fixedly connected inside the collector, and a movable sleeve is movably fitted on the outer wall of the vertical rod. The movable sleeve is fixedly connected to a horizontal plate. When the motor starts, it drives the threaded rod to rotate. The rotating threaded rod drives the threaded sleeve on its outer wall to move horizontally along the axis. The threaded sleeve drives the horizontal plate to move together. The horizontal plate slides on the vertical rod through the movable sleeve to maintain stable movement. The cleaning brush fixed to the back plate of the horizontal plate moves accordingly to brush the surface of the filter screen and remove the attached floating dust. During the movement of the horizontal plate, the first abutment rod fixed to the first slider contacts the fixed corrugated plate. The undulating contour of the corrugated plate forces the first abutment rod and the first slider to compress the spring and slide back and forth in the first slide groove. The reciprocating motion of the first slider drives the striking rod on its right side to strike the filter screen frame or screen surface at high frequency, generating vibration force to loosen and dislodge particles embedded deep in the filter screen holes, achieving deep cleaning. By setting a motor-driven "cleaning brush" to directly contact and brush the surface of the filter screen, and an innovative "striking mechanism" is designed. As the cleaning brush moves laterally, the first contact rod, undulating under the influence of the wave plate, drives the striking rod to reciprocate at high frequency via a spring, continuously striking the filter screen. This combined cleaning mode of "brushing + high-frequency striking" effectively shakes off and removes dust particles embedded deep within the filter screen's pores, fundamentally solving the problem of deep clogging and ensuring the filter screen's long-lasting and efficient permeability and dust removal.

[0010] Preferably, the collector is provided with an activated carbon purification mechanism, which includes an activated carbon box fixedly connected to the inside of the collector, and the activated carbon box contains a number of activated carbon particles.

[0011] Preferably, a fixing plate is fixedly connected to the front of the first slider, a folding rod is fixedly connected to the top of the fixing plate, a connecting plate is provided inside the activated carbon box, the connecting plate is fixedly connected to the folding rod, and flipping plates are fixedly connected to the upper and lower sides of the connecting plate respectively.

[0012] Preferably, the inner wall of the collector is provided with a second groove, and a second slider is slidably connected inside the second groove. The second slider is fixedly connected to the connecting plate. When the first slider of the cleaning mechanism reciprocates, it drives the fixed plate and the folding rod fixed on its front to reciprocate horizontally. The folding rod drives the connecting plate inside the activated carbon box to move. The connecting plate moves stably left and right under the constraint of the second groove by the second slider. When the connecting plate moves left and right, the flipping plates fixed on its upper and lower sides continuously stir the activated carbon particles in the box, breaking the fixed bed layer, avoiding channel effect and local saturation, so that the activated carbon adsorption surface is constantly renewed, significantly improving the adsorption efficiency of harmful gases. By cleverly transmitting the lateral mechanical movement of the cleaning mechanism to the connecting plate and flipping plates inside the activated carbon box through the "fixed plate" and "folding rod", the horizontal reciprocating motion is transformed into the up and down reciprocating motion of the flipping plates, thereby synchronously and automatically flipping and stirring the activated carbon particles in the box during the dust removal process. This design avoids the problems of local saturation and airflow channels that are prone to occur in activated carbon fixed beds, significantly increases the effective contact area between activated carbon and flue gas, makes full use of its adsorption capacity, continuously and efficiently removes gaseous pollutants from flue gas, and improves the overall purification level.

[0013] Preferably, the collector is equipped with a spray purification mechanism, which includes a water tank. The water tank is fixedly connected to the back of the collector. A water pipe is installed inside the water tank via a water pump. The end of the water pipe away from the water tank is fixedly connected to the inner wall of the collector. Several nozzles are provided at the bottom of the water pipe.

[0014] Preferably, a rotating rod is rotatably connected to the inner wall of the collector, the rotating rod passes through the collector and extends outward, a guide plate is fixedly connected to the outer wall of the rotating rod, and a torsion spring is provided on the outer wall of the rotating rod.

[0015] Preferably, a vertical plate is fixedly connected to the front of the rotating rod, and an abutment plate is fixedly connected to the back plate of the vertical plate. A second abutment rod is fixedly connected to the right side of the folded rod. The second abutment rod contacts the abutment plate. The water pump sends water from the water tank to the nozzle through the water pipe. The sprayed water mist performs a final washing of the flue gas, which can further reduce dust and absorb some soluble gases. When the folded rod moves horizontally, the second abutment rod fixed on its right side will periodically strike the abutment plate fixed on the rotating rod of the guide plate, overcoming the torsion spring force to make the guide plate swing momentarily. The pulse swing of the guide plate disturbs the airflow and water mist, improving the mixing and purification effect. On the other hand, its swing itself also plays a self-cleaning role, preventing dust from adhering. By setting up a spray purification mechanism, dust can be further reduced, some soluble gases can be absorbed, and the interior of the purifier can be cleaned. Further dust removal is carried out, forming a multifunctional and high-efficiency composite purification system. The swing of the guide plate further improves the contact effect between dust and water mist, thereby improving the dust removal effect.

[0016] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0017] 1. This electrostatic flue gas purifier for power plants features a motor-driven cleaning brush that directly contacts and scrubs the filter screen surface. It also innovatively incorporates a tapping mechanism. As the cleaning brush moves laterally, the first contact rod, undulating under the influence of a wave plate, drives a spring-driven tapping rod in a high-frequency reciprocating motion, continuously tapping the filter screen. This combined cleaning mode of "brushing + high-frequency tapping" effectively dislodges and removes dust particles embedded deep within the filter screen's pores, fundamentally solving the problem of deep clogging and ensuring the filter screen's long-lasting and efficient permeability and dust removal.

[0018] 2. This electrostatic precipitator for power plant flue gas purification cleverly transmits the lateral mechanical movement of the cleaning mechanism to the connecting plate and the flipping plate inside the activated carbon box via a "fixed plate" and a "folding rod." This transforms the horizontal reciprocating motion into the up-and-down reciprocating motion of the flipping plate, thereby synchronously and automatically agitating and stirring the activated carbon particles inside the box during dust removal. This design avoids the localized saturation and airflow channel problems that easily occur in fixed activated carbon beds, significantly increases the effective contact area between the activated carbon and the flue gas, fully utilizes its adsorption capacity, and continuously and efficiently removes gaseous pollutants from the flue gas, thus improving the overall purification level.

[0019] 3. This electrostatic precipitator for flue gas in power plants, by setting up a spray purification mechanism, can further reduce dust, absorb some soluble gases, and clean the inside of the purifier, thus further removing dust and forming a multifunctional and highly efficient composite purification system. Furthermore, the oscillation of the guide plate further enhances the contact effect between dust and water mist, thereby improving the dust removal effect. Attached Figure Description

[0020] Figure 1 This is a front view of a flue gas electrostatic purification collector for power plants according to the present invention;

[0021] Figure 2 This is a first cross-sectional view of an electrostatic purifier for flue gas in a power plant according to the present invention.

[0022] Figure 3 This is an enlarged view of section A of the electrostatic precipitator for flue gas purification in power plants according to the present invention;

[0023] Figure 4 This is a second cross-sectional view of a flue gas electrostatic purification collector for power plants according to the present invention;

[0024] Figure 5 This is a third sectional view of an electrostatic precipitator for flue gas purification in power plants according to the present invention.

[0025] Figure 6 This is an enlarged view of section B of the electrostatic precipitator for flue gas purification in power plants according to the present invention;

[0026] Figure 7 This is a fourth cross-sectional view of a flue gas electrostatic purification collector for power plants according to the present invention;

[0027] Figure 8 This is a fifth cross-sectional view of an electrostatic purifier and collector for flue gas in a power plant according to the present invention.

[0028] In the diagram: 1. Collector; 2. Air inlet; 3. Air outlet; 4. Filter screen; 5. Cleaning mechanism; 511. Motor; 512. Threaded rod; 513. Threaded sleeve; 514. Horizontal plate; 515. Cleaning brush; 516. First chute; 517. First slider; 518. Spring; 519. First abutment rod; 520. Wave plate; 521. Striking rod; 6. Activated carbon purification mechanism; 611. Activated carbon box; 612. Fixing plate; 613. Folding rod; 614. Connecting plate; 615. Flipping plate; 616. Second chute; 617. Second slider; 7. Spray purification mechanism; 711. Water tank; 712. Water pipe; 713. Spray head; 714. Rotating rod; 715. Guide plate; 716. Torsion spring; 717. Vertical plate; 718. Abutment plate; 719. Second abutment rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-8One embodiment of the present invention is: a flue gas electrostatic purification collector for power plants, including a collector 1, an air inlet 2 on the left side of the collector 1, an air outlet 3 on the right side of the collector 1, an electrostatic dust removal unit inside the collector 1, and a filter screen 4 fixedly connected inside the collector 1. The flue gas to be purified from the power plant enters the collector 1 from the air inlet 2. The flue gas first passes through the electrostatic precipitator unit of collector 1. During this process, most of the dust particles in the flue gas are ionized and adsorbed onto the electrode plates under the action of a high-voltage electric field, achieving preliminary purification. The flue gas, after electrostatic treatment, continues to flow and passes through the filter screen 4 fixedly connected inside the collector. The filter screen 4 mechanically intercepts and deeply filters the fine particulate matter remaining in the flue gas, further reducing the dust content in the flue gas. A cleaning mechanism 5 is installed inside collector 1. The cleaning mechanism 5 includes a motor 511, which is fixedly connected to the top of collector 1. A threaded rod 512 is rotatably connected inside collector 1. The threaded rod 512 passes through collector 1 and is fixedly connected to motor 511 through a coupling. A threaded sleeve 513 is connected to the filter screen on the outer wall of the threaded rod 512. A horizontal plate 514 is fixedly connected to the right side of the threaded sleeve 513. A cleaning brush 515 is fixedly connected to the back plate of the horizontal plate 514. The cleaning brush 515 contacts the filter screen 4. A first sliding groove 516 is opened inside the horizontal plate 514. A first slider 517 is slidably connected, and a spring 518 is fixedly connected between the first slider 517 and the first slide groove 516. A striking rod 521 is fixedly connected to the right side of the first slider 517, and a first abutting rod 519 is fixedly connected to the left side of the first slider 517. A wave plate 520 is fixedly connected inside the collector 1, and the first abutting rod 519 contacts the wave plate 520. A vertical rod is fixedly connected inside the collector 1, and a movable sleeve is movably fitted onto the outer wall of the vertical rod. The movable sleeve is fixedly connected to a horizontal plate 514. Motor 511 starts, driving threaded rod 512 to rotate. The rotating threaded rod drives threaded sleeve 513 on its outer wall to move horizontally along the axis. Threaded sleeve 513 drives horizontal plate 514 to move together. Horizontal plate 514 slides on vertical rod via a movable sleeve, maintaining stable movement. Cleaning brush 515, fixed to the back plate of horizontal plate, moves accordingly, brushing the surface of filter screen 4 to remove attached dust. During the movement of horizontal plate, first abutment rod 519, fixed to first slider 517, contacts fixed corrugated plate 520. The undulating contour of corrugated plate forces first abutment rod and first slider to compress spring 518 within first groove 516 and slide back and forth. The reciprocating motion of first slider drives striking rod 521 on its right side to strike the filter screen frame or screen surface at high frequency, generating vibration force that loosens and dislodges particles embedded deep in the filter screen pores, achieving deep cleaning.

[0031] Working principle: The flue gas from the power plant to be purified enters the collector 1 through the inlet 2. The flue gas first passes through the electrostatic precipitator unit of the collector 1. During this process, most of the dust particles in the flue gas are ionized and adsorbed onto the electrode plates under the action of a high-voltage electric field, achieving preliminary purification. The flue gas after electrostatic treatment continues to flow and passes through the filter screen 4 fixedly connected inside the collector. The filter screen 4 mechanically intercepts and deeply filters the fine particulate matter remaining in the flue gas, further reducing the dust content in the flue gas. The motor 511 starts and drives the threaded rod 512 to rotate. The rotating threaded rod drives the threaded sleeve 513 on its outer wall to move horizontally along the axis. The threaded sleeve 513 drives the horizontal plate 514 to move together. The horizontal plate 514 slides on the vertical rod through a movable sleeve to maintain stable movement. The cleaning brush 515 fixed to the back plate of the horizontal plate moves accordingly to brush the surface of the filter screen 4 and remove the attached floating dust. During the movement of the horizontal plate, the first contact rod 519 fixed on the first slider 517 contacts the fixed corrugated plate 520. The undulating contour of the wave plate forces the first abutment rod and the first slider to compress the spring 518 and slide back and forth in the first groove 516. The reciprocating motion of the first slider drives the striking rod 521 on its right side to strike the filter screen frame or screen surface at high frequency, generating vibration force, which loosens and dislodging the particles embedded deep in the filter screen holes, achieving deep cleaning.

[0032] Please see Figure 1-8 Based on the above embodiments, in another embodiment of the present invention, the collector 1 is provided with an activated carbon purification mechanism 6. The activated carbon purification mechanism 6 includes an activated carbon box 611, which is fixedly connected to the inside of the collector 1. The activated carbon box 611 contains a plurality of activated carbon particles. A fixing plate 612 is fixedly connected to the front of the first slider 517, and a folded rod 613 is fixedly connected to the top of the fixing plate 612. A connecting plate 614 is provided inside the activated carbon box 611, and the connecting plate 614 is fixedly connected to the folded rod 613. Flipping plates 615 are fixedly connected to the upper and lower sides of the connecting plate 614, respectively. A second sliding groove 616 is provided on the inner wall of the collector 1. The internal sliding connection of the 6 is a second slider 617, which is fixedly connected to the connecting plate 614. When the first slider 517 of the cleaning mechanism 5 reciprocates, it drives the fixed plate 612 and the folded rod 613 fixed on its front to reciprocate horizontally. The folded rod 613 drives the connecting plate 614 inside the activated carbon box 611 to move. The connecting plate 614 moves stably left and right under the constraint of the second slide groove 616 through the second slider 617. When the connecting plate moves left and right, the flipping plates 615 fixed on its upper and lower sides continuously stir the activated carbon particles in the box, break the fixed bed, avoid channel effect and local saturation, and make the activated carbon adsorption surface continuously renewed, significantly improving the adsorption efficiency of harmful gases.

[0033] Working principle: When the first slider 517 of the cleaning mechanism 5 reciprocates, it drives the fixed plate 612 and the folded rod 613 fixed on its front to reciprocate horizontally. The folded rod 613 drives the connecting plate 614 inside the activated carbon box 611 to move. The connecting plate 614 moves stably left and right under the constraint of the second slide groove 616 by the second slider 617. When the connecting plate moves left and right, the flipping plates 615 fixed on its upper and lower sides continuously stir the activated carbon particles in the box, break the fixed bed, avoid channel effect and local saturation, and make the activated carbon adsorption surface continuously renewed, significantly improving the adsorption efficiency of harmful gases.

[0034] Please see Figure 1-8 Based on the above embodiments, in another embodiment of the present invention, a spray purification mechanism 7 is provided inside the collector 1. The spray purification mechanism 7 includes a water tank 711, which is fixedly connected to the back of the collector 1. A water pipe 712 is provided inside the water tank 711 via a water pump. One end of the water pipe 712 away from the water tank 711 is fixedly connected to the inner wall of the collector 1. Several nozzles 713 are provided at the bottom of the water pipe 712. A rotating rod 714 is rotatably connected to the inner wall of the collector 1. The rotating rod 714 passes through the collector 1 and extends outward. A guide plate 715 is fixedly connected to the outer wall of the rotating rod 714. A torsion spring 716 is provided on the outer wall of the rotating rod 714. A vertical plate 717 is fixedly connected to the front of the rotating rod 714. A contact plate 718 is fixedly connected to the back plate, and a second contact rod 719 is fixedly connected to the right side of the folded rod 613. The second contact rod 719 contacts the contact plate 718. The water pump sends water from the water tank 711 to the nozzle 713 through the water pipe 712. The sprayed water mist performs a final wash on the flue gas, which can further reduce dust and absorb some soluble gases. When the folded rod 613 moves horizontally, the second contact rod 719 fixed on its right side will periodically strike the contact plate 718 fixed on the rotating rod of the guide plate 715, overcoming the torsion spring force to make the guide plate swing momentarily. The pulse swing of the guide plate disturbs the airflow and water mist, improving the mixing and purification effect; on the other hand, its swing itself also plays a self-cleaning role, preventing dust from adhering.

[0035] Working principle: The water pump delivers water from the water tank 711 to the nozzle 713 through the water pipe 712. The sprayed water mist performs a final wash on the flue gas, which can further reduce dust and absorb some soluble gases. When the folded rod 613 moves horizontally, the second abutment rod 719 fixed on its right side will periodically strike the abutment plate 718 fixed on the rotating rod of the guide plate 715, overcoming the torsion spring force and causing the guide plate to swing momentarily. The pulse swing of the guide plate disturbs the airflow and water mist, improving the mixing and purification effect; on the other hand, its swing itself also plays a self-cleaning role, preventing dust from adhering.

[0036] This invention provides an electrostatic precipitator for flue gas purification in power plants. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A flue gas electrostatic purification collector for power plants, comprising a collector (1), characterized in that; An air inlet (2) is provided on the left side of the collector (1), an air outlet (3) is provided on the right side of the collector (1), and a filter screen (4) is fixedly connected inside the collector (1). The collector (1) is equipped with a cleaning mechanism (5), which includes a motor (511). The motor (511) is fixedly connected to the top of the collector (1). A threaded rod (512) is rotatably connected inside the collector (1). The threaded rod (512) passes through the collector (1) and is fixedly connected to the motor (511) through a coupling. A threaded sleeve (513) is connected to the filter screen on the outer wall of the threaded rod (512). A horizontal plate (514) is fixedly connected to the right side of the threaded sleeve (513). A cleaning brush (515) is fixedly connected to the back plate of the horizontal plate (514). The cleaning brush (515) is in contact with the filter screen (4).

2. The electrostatic precipitator for flue gas purification in power plants according to claim 1, characterized in that: The cross plate (514) has a first groove (516) inside, and a first slider (517) is slidably connected inside the first groove (516). A spring (518) is fixedly connected between the first slider (517) and the first groove (516).

3. The electrostatic precipitator for flue gas purification in power plants according to claim 2, characterized in that: A striking rod (521) is fixedly connected to the right side of the first slider (517), and a first abutting rod (519) is fixedly connected to the left side of the first slider (517). A wave plate (520) is fixedly connected inside the collector (1), and the first abutting rod (519) contacts the wave plate (520).

4. The electrostatic precipitator for flue gas purification in power plants according to claim 3, characterized in that: The collector (1) is fixedly connected to a vertical rod inside, and a movable sleeve is movably fitted on the outer wall of the vertical rod. The movable sleeve is fixedly connected to the horizontal plate (514).

5. The electrostatic precipitator for flue gas purification in power plants according to claim 4, characterized in that: The collector (1) is equipped with an activated carbon purification mechanism (6), which includes an activated carbon box (611). The activated carbon box (611) is fixedly connected to the inside of the collector (1), and the activated carbon box (611) contains a number of activated carbon particles.

6. The electrostatic precipitator for flue gas purification in power plants according to claim 5, characterized in that: A fixing plate (612) is fixedly connected to the front of the first slider (517), and a folding rod (613) is fixedly connected to the top of the fixing plate (612). A connecting plate (614) is provided inside the activated carbon box (611). The connecting plate (614) is fixedly connected to the folding rod (613), and a flipping plate (615) is fixedly connected to the upper and lower sides of the connecting plate (614).

7. The electrostatic precipitator for flue gas purification in power plants according to claim 6, characterized in that: The collector (1) has a second groove (616) on its inner wall. A second slider (617) is slidably connected inside the second groove (616). The second slider (617) is fixedly connected to the connecting plate (614).

8. The electrostatic precipitator for flue gas purification in power plants according to claim 7, characterized in that: The collector (1) is equipped with a spray purification mechanism (7), which includes a water tank (711). The water tank (711) is fixedly connected to the back of the collector (1). A water pipe (712) is installed inside the water tank (711) via a water pump. One end of the water pipe (712) away from the water tank (711) is fixedly connected to the inner wall of the collector (1). Several nozzles (713) are provided at the bottom of the water pipe (712).

9. A flue gas electrostatic purifier and collector for power plants according to claim 8, characterized in that: The inner wall of the collector (1) is rotatably connected to a rotating rod (714), which passes through the collector (1) and extends outward. The outer wall of the rotating rod (714) is fixedly connected to a guide plate (715), and a torsion spring (716) is provided on the outer wall of the rotating rod (714).

10. A flue gas electrostatic purifier for power plants according to claim 9, characterized in that: A vertical plate (717) is fixedly connected to the front of the rotating rod (714), and an abutment plate (718) is fixedly connected to the back of the vertical plate (717). A second abutment rod (719) is fixedly connected to the right side of the folded rod (613), and the second abutment rod (719) contacts the abutment plate (718).

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