Treatment device for waste gas purification and implementation method thereof

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a treatment device for waste gas purification and an implementation method thereof.The device comprises a wet-type electrostatic dust collector body, an exhaust pipe is connected to the upper portion of one side of the wet-type electrostatic dust collector body, and a gas inlet is formed in the position, located on the lower portion of the side edge of the wet-type electrostatic dust collector body, below the exhaust pipe; the upper part of the other side of the wet-type electrostatic dust collector body is connected with a water inlet pipe, the bottom of the wet-type electrostatic dust collector body is provided with an ash bucket, and the bottom of the ash bucket is provided with a drain outlet; a water collection tank, a second filter plate, a first filter plate, a filter cloth bag and a group of water distribution tanks are sequentially arranged in the wet electrostatic dust collector body from top to bottom, two sides of the top of each water distribution tank are communicated with the bottom of the water collection tank through flow distribution pipes, a plurality of nozzles are arranged at the bottom of each water distribution tank, and a bidirectional driving part is arranged on one side between the first filter plate and the second filter plate. The bidirectional driving part is connected with the flow assisting part, the longer the waste gas staying time is, the better the treatment effect is, and the catalytic effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to a waste gas purification treatment device and an implementation method thereof. BACKGROUND

[0002] Boiler combustion waste gas refers to the gas emissions generated in the fuel combustion process in the boiler, which usually contains carbon dioxide, nitrogen oxides, carbon monoxide, sulfides and other dust particles, among which the carbon dioxide, nitrogen oxides and carbon monoxide contained in the waste gas are harmful gases, which can easily pollute the environment if directly discharged into the outside air, so the waste gas needs to be treated and recovered.

[0003] In the actual use process of the prior art, only the active carbon filter screen adsorption and the spraying of alkaline solution can not ensure that all the waste gas is in full contact with the alkaline solution, so that the harmful gas is discharged into the outside air, causing environmental pollution, and in the waste gas purification process in the prior art, the existing double filter plate spacing is fixed and cannot be dynamically adjusted, and the existing stirrer can easily cause equipment vibration, affecting the service life of the filter bag. SUMMARY

[0004] The technical task of the present application is to solve the above problems by providing a waste gas purification treatment device and an implementation method thereof.

[0005] The technical solution of the present application is as follows: According to one aspect of the present application, a waste gas purification treatment device is provided.

[0006] The wet electrostatic precipitator body is connected with an exhaust pipe on one side of the upper part, a gas inlet is arranged below the exhaust pipe and on the side of the lower part of the wet electrostatic precipitator body, a water inlet pipe is connected with the upper part of the other side of the wet electrostatic precipitator body, a dust hopper is arranged at the bottom of the wet electrostatic precipitator body, and a blowdown port is arranged at the bottom of the dust hopper; a water collecting tank, a second filter plate, a first filter plate, a filter bag and a group of water distribution tanks are arranged in the wet electrostatic precipitator body from top to bottom; the top of the water distribution tank is communicated with the bottom of the water collecting tank through a flow distribution pipe on both sides; a plurality of spray heads are arranged at the bottom of the water distribution tank; a bidirectional driving part is arranged on one side between the first filter plate and the second filter plate, and a flow assisting part is connected with the bidirectional driving part; the bidirectional driving part comprises an adapter plate, a rotating shaft is arranged in the middle of the adapter plate, the inner end of the rotating shaft is connected with the flow assisting part, the outer end of the rotating shaft is connected with the inner wall of the wet electrostatic precipitator body, the adapter plate is connected with a driving rod one and a driving rod two at both ends, the outer ends of the driving rod one and the driving rod two are connected with sliding mechanisms, a cylinder and a matched air rod are connected with one side of the sliding mechanism, and the sliding mechanism is mounted on the inner wall of the wet electrostatic precipitator body.

[0007] As preferred, the sliding mechanism comprises a set of fourth tracks fixed respectively on one side of the inner side wall of the wet electrostatic precipitator body, a set of fifth tracks arranged below the fourth tracks, fourth sliders and fifth sliders arranged on the side edges of the fourth tracks and the fifth tracks, and upper L-shaped supporting plates and lower L-shaped supporting plates arranged respectively on the side away from the fourth tracks and the fifth tracks of the fourth sliders and the fifth sliders; the upper part of the first driving rod is connected with one side of the bottom of the upper L-shaped supporting plate; the lower part of the second driving rod is connected with one side of the top of the lower L-shaped supporting plate; the second filter plate is fixed on the upper L-shaped supporting plate; the first filter plate is fixed on the lower L-shaped supporting plate; the side away from the second filter plate of the upper L-shaped supporting plate is provided with a strip-shaped slot, and the third driving rod of the flow assisting part penetrates through the strip-shaped slot.

[0008] As preferred, the lower L-shaped supporting plate is provided with an extension plate at the center of one side, the extension plate is provided with a fixing block corresponding to one side of the inner wall of the wet electrostatic precipitator body, the top center of the fixing block is provided with a cylinder, the top of the cylinder is provided with an air rod, the upper part of the air rod is provided with a matched air cylinder, the bottom of the air cylinder is provided with a triangular seat, the inner wall of the triangular seat is fixed on one side of the inner wall of the wet electrostatic precipitator body, and the air rod penetrates through the triangular seat.

[0009] As preferred, the inner wall of the wet electrostatic precipitator body is provided with a set of second tracks and a set of first tracks on the side away from the bidirectional driving part, and the second tracks and the first tracks are respectively provided with matched second sliders and first sliders; the side away from the upper L-shaped supporting plate of the second filter plate is fixed on the side edge of the second slider; the side away from the lower L-shaped supporting plate of the first filter plate is fixed on the side edge of the first slider.

[0010] As preferred, the flow assisting part comprises an eccentric disc, the inner end of the rotating shaft is connected with the center of the side edge of the eccentric disc, the side end of the side away from the rotating shaft of the eccentric disc is provided with a connecting head two, the connecting head two is connected with the third driving rod, the third driving rod penetrates through the strip-shaped slot of the upper L-shaped supporting plate of the bidirectional driving part, the top of the third driving rod is provided with a connecting head one, one side of the connecting head one is provided with a third slider, the side away from the connecting head one of the third slider is provided with a matched third track, the side away from the third slider of the third track is fixed on the inner upper side wall of the wet electrostatic precipitator body; the side away from the third slider of the connecting head one is connected with the moving assisting part.

[0011] As preferred, the moving assisting part comprises a plurality of triangular rotating plates, one end of each of the triangular rotating plates is connected with the horizontal rod one, one end of the horizontal rod one is connected with the end of the connecting head one; the horizontal rod two is arranged across between the middle end portions of the triangular rotating plates, and the two ends of the horizontal rod two are respectively connected on the two inner side walls of the wet electrostatic precipitator body; the other end of the triangular rotating plate is provided with a shaft rod; the end away from the triangular rotating plate of the shaft rod is provided with a pushing column, the pushing column is provided with a guide rod on one side, and the two ends of the guide rod are respectively fixed on the inner wall of the wet electrostatic precipitator body; the bottom of the pushing column is provided with a moving plate.

[0012] As preferred, the pushing column is arranged as an L-shaped structure, a side groove is arranged on the upper part of the side of the pushing column away from the guide rod, and a sliding groove is arranged longitudinally in the side groove, and the shaft end is arranged in the sliding groove.

[0013] As preferred, the top of the first filter plate is provided with a plurality of convex columns, the bottom of the second filter plate is provided with a plurality of concave columns, the top of the concave column is provided with a hollow opening, a push plate is arranged in the concave column, the bottom of the push plate is provided with a plurality of push rods, the push rods pass through the top surface of the concave column and the convex column, and the upper parts of the two sides of the concave column are provided with side outlets.

[0014] According to another aspect of the present application, a method for purifying exhaust gas is provided.

[0015] The method comprises the following steps: The exhaust gas is discharged into the wet electrostatic precipitator body through the gas inlet; The water inlet pipe is connected with the alkaline solution storage tank, and the alkaline solution is transmitted into the water collecting tank; The liquid in the water collecting tank is introduced into the water distributing tank through the shunt pipe, and then sprayed out through the spray head; The exhaust gas is preliminarily filtered through the filter bag; After the preliminary filtration, the exhaust gas flows upward again through the first filter plate and the second filter plate; During the process of passing through the first filter plate and the second filter plate, the bidirectional driving part is driven, and the two filter plates are reversely moved by the bidirectional driving part; During the movement of the two filter plates moving towards the middle part or moving towards the two sides at the same time, the exhaust gas inside the two filter plates is driven to move, and the exhaust gas is compressed and dispersed; The distance between the first filter plate and the second filter plate is changed; When the distance between the second filter plate and the first filter plate is reduced, the exhaust gas transmitted upward is compressed and impacted into the filter hole, and the particles contained in the exhaust gas are dispersed under the compression; When the first filter plate and the second filter plate slide up and down, the flow assisting part connected by linkage driving is driven to move, and the moving plate arranged in the flow assisting part moves left and right; When the moving plate moves left and right in the wet electrostatic precipitator body, the exhaust gas inside the wet electrostatic precipitator body is driven to flow, and the exhaust gas flows and mixes with the liquid sprayed out; The treatment effect of the exhaust gas is improved, and the exhaust gas is discharged from the exhaust pipe after the purification is completed; The generated sludge is discharged from the sewage outlet.

[0016] Compared with the prior art, the present application has the following advantages and positive effects: Two filter plates are arranged in the wet electrostatic precipitator body, and the two filter plates are driven to move in opposite directions by the bidirectional driving part arranged inside, the spacing between the first filter plate and the second filter plate changes with the movement of the two filter plates, the entering waste gas is affected by the two filter plates and has a certain blocking effect, which promotes the waste gas to stay and swirl in the spacing, and the waste gas stays and swirls is purified under the liquid spray sprayed from above, and the contact time of the spray is increased, when the spacing between the first filter plate and the second filter plate becomes smaller, the space in the middle is compressed, and the waste gas staying and swirling inside is compressed and hits the two filter plates, part of it rushes into the upper space through the filter hole, and the path of the waste gas in the upper space contacted with the liquid sprayed from above is reduced, so that the sprayed liquid directly impacts the entering waste gas, and the other part rushes into the lower filter bag through the filter hole and is filtered layer by layer and then returns between the two filter plates, in this way, the number of filtering times increases, and the staying time also increases, and when the spacing is reduced to 1 / 3 of the original, the flow rate of the waste gas impacting the filter hole is increased by 20%, and the particle dispersion degree is increased by 30%, thereby significantly improving the purification effect, so that the waste gas is more fully contacted, the treatment effect is better, and the catalytic effect is increased.

[0017] When the adapter plate swings, it pulls the driving rod to slide up and down, and the horizontal rod will drive multiple triangular adapter plates to flip, and the other end of the triangular adapter plate pushes the push column to slide on the guide rod, so that the moving plate moves above the second filter plate, and the moving plate replaces the stirring structure in the prior art, thereby solving the problem that the stirring structure in the prior art causes vibration of the equipment and avoiding increasing the vibration of the equipment.

[0018] A plurality of recessed columns are arranged on the second filter plate, and the top of the recessed column is of an open structure, so that the liquid sprayed from above falls into the recessed column groove, when the second filter plate and the first filter plate move towards each other at the same time, the push rod hits the lower protruding column and is subjected to a top force, so that the push plate pushes upwards and pushes the liquid in the recessed column groove out, the pushed-out liquid then overflows to both sides and flows into the grooves formed between the adjacent protruding columns below, so that the waste gas staying in the groove is impacted by the liquid, the fusion between the liquid and the waste gas is increased, and the contact of the waste gas with the alkaline solution is increased, thereby improving the catalytic reaction.

[0019] When the moving plate moves left and right, the gas-liquid contact area is increased by 40%, and the dynamic change of the spacing between the filter plates prolongs the waste gas staying time to twice the original, so that compared with the waste gas purification in the prior art, the purification effect in the present application is better, and the fusion between the alkaline solution and the waste gas is better.

[0020] The wet electrostatic precipitator is provided with the functions of integrated dynamic filter plate adjustment, non-vibration airflow assistance and gas-liquid intensive mixing, and is suitable for purifying waste gas containing dust particles, carbon dioxide, nitrogen oxides, sulfides and other harmful components. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the interior of a wet electrostatic precipitator body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the bidirectional drive unit structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure between the wet electrostatic precipitator body and the filter plate according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the first filter plate according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the second filter plate according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-structure drive rod according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the mobility aid unit according to an embodiment of the present invention.

[0023] In the picture: 1. Wet electrostatic precipitator body; 2. Exhaust pipe; 3. Gas inlet; 4. Water inlet pipe; 5. Ash hopper; 6. Sewage outlet; 7. Water collection tank; 8. Second filter plate; 9. First filter plate; 10. Filter bag; 11. Water distribution tank; 12. Adapter plate; 13. Rotating shaft; 14. Nozzle; 15. Drive rod one; 16. Drive rod two; 17. Fourth track; 18. Fifth track; 19. Fourth slider; 20. Fifth slider; 21. Upper L-shaped support plate; 22. Lower L-shaped support plate; 23. Extension plate; 24. Fixing block; 25. Cylinder; 6. Pneumatic rod; 27. Cylinder; 28. Triangular seat; 29. ​​Second track; 30. First track; 31. Second slider; 32. First slider; 33. Eccentric plate; 34. Connector two; 35. Drive rod three; 36. Connector one; 37. Third slider; 38. Third track; 39. Triangular rotating plate; 40. Crossbar one; 41. Crossbar two; 42. Shaft; 43. Push column; 44. Guide rod; 45. Moving plate; 46. Protruding column; 47. Concave column; 48. Push plate; 49. Push rod; 50. Side outlet; 51. Diverter pipe. Detailed Implementation

[0024] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the application will be further described with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] The present application will be further described with reference to the drawings and specific embodiments. Embodiment one

[0026] As Figures 1-8 shown in the figure: The present application provides a kind of exhaust gas purification treatment device, including wet electrostatic precipitator body 1, wet electrostatic precipitator body 1 one side upper portion is connected with exhaust pipe 2, gas inlet 3 is located in the lower part of the side edge of wet electrostatic precipitator body 1 below exhaust pipe 2, wet electrostatic precipitator body 1 other side upper portion is connected with water inlet pipe 4, wet electrostatic precipitator body 1 bottom is equipped with ash bucket 5, the bottom of ash bucket 5 is equipped with blow-off port 6;Wet electrostatic precipitator body 1 is equipped with water collecting tank 7, second filter plate 8, first filter plate 9, filter cloth bag 10 and a group of water distribution tank 11 from top to bottom in sequence, the top of water distribution tank 11 both sides is communicated with the bottom of water collecting tank 7 by shunt pipe 51, the bottom of water distribution tank 11 is equipped with several spray heads 14, one side between first filter plate 9 and second filter plate 8 is equipped with bidirectional drive part, and flow auxiliary part is connected on bidirectional drive part;Bidirectional drive part includes adapter plate 12, adapter plate 12 middle part is inserted with rotating shaft 13, rotating shaft 13 inner end is connected with flow auxiliary part, rotating shaft 13 outer end is connected on the inner wall of wet electrostatic precipitator body 1, the both ends of adapter plate 12 are connected with drive rod one 15 and drive rod two 16, the outer end of drive rod one 15 and drive rod two 16 is connected with sliding mechanism respectively, gas cylinder 27 and the matching air rod 26 are connected on the sliding mechanism of one side, and sliding mechanism is installed on the inner wall of wet electrostatic precipitator body 1.

[0027] The sliding mechanism comprises a set of fourth tracks 17 fixed on one side of the inner side wall of the wet electrostatic precipitator body 1, a set of fifth tracks 18 arranged below the fourth tracks 17, fourth sliders 19 and fifth sliders 20 arranged on the sides of the fourth tracks 17 and the fifth tracks 18, and upper L-shaped supporting plates 21 and lower L-shaped supporting plates 22 arranged on the sides of the fourth sliders 19 and the fifth sliders 20 away from the fourth tracks 17 and the fifth tracks 18. The upper part of the driving rod one 15 is connected to one side of the bottom of the upper L-shaped supporting plate 21, the lower part of the driving rod two 16 is connected to one side of the top of the lower L-shaped supporting plate 22, the second filter plate 8 is fixed on the upper L-shaped supporting plate 21, the first filter plate 9 is fixed on the lower L-shaped supporting plate 22, the upper L-shaped supporting plate 21 is provided with a strip-shaped groove on the side away from the second filter plate 8, the driving rod three 35 of the flow assisting part penetrates through the strip-shaped groove, the lower L-shaped supporting plate 22 is provided with an extension plate 23 at the center of one side, the extension plate 23 is provided with a fixing block 24 corresponding to one side of the inner wall of the wet electrostatic precipitator body 1, the top center of the fixing block 24 is provided with a cylinder 25, the top of the cylinder 25 is provided with an air rod 26, the upper part of the air rod 26 is provided with a matching air cylinder 27, the bottom of the air cylinder 27 is provided with a triangular seat 28, the inner wall of the triangular seat 28 is fixed on one side of the inner wall of the wet electrostatic precipitator body 1, the air rod 26 penetrates through the triangular seat 28, the inner wall of the wet electrostatic precipitator body 1 is provided with a set of second tracks 29 and a set of first tracks 30 on the side away from the bidirectional driving part, and the second tracks 29 and the first tracks 30 are respectively provided with matching second sliders 31 and first sliders 32. The side of the second filter plate 8 away from the upper L-shaped supporting plate 21 is fixed on the side of the second slider 31, and the side of the first filter plate 9 away from the lower L-shaped supporting plate 22 is fixed on the side of the first slider 32.

[0028] In addition, the flow assisting part comprises an eccentric disc 33, the inner end of the rotating shaft 13 is connected with the center of the side of the eccentric disc 33, the eccentric disc 33 is provided with a connecting head two 34 on the side end away from the rotating shaft 13, the connecting head two 34 is connected with a driving rod three 35, the connecting head two 34 and the driving rod three 35 are hinged through a pin shaft, the driving rod three 35 penetrates the strip-shaped slot of the upper L-shaped supporting plate 21 of the bidirectional driving part, the top of the driving rod three 35 is provided with a connecting head one 36, one side of the connecting head one 36 is provided with a third sliding block 37, the side away from the connecting head one 36 of the third sliding block 37 is provided with a third track 38 matched therewith, the side away from the third sliding block 37 of the third track 38 is fixed on the inner upper sidewall of the wet-type electrostatic dust collector body 1; the side away from the third sliding block 37 of the connecting head one 36 is connected with a moving assisting part, the moving assisting part comprises a plurality of triangular rotating plates 39, one end of the triangular rotating plate 39 is connected with a horizontal rod one 40, one end of the horizontal rod one 40 is connected with the end of the connecting head one 36; horizontal rods two 41 are horizontally arranged between the middle end portions of the triangular rotating plates 39, and the two ends of the horizontal rods two 41 are connected with the inner sidewalls of the wet-type electrostatic dust collector body 1 respectively; the other end of the triangular rotating plate 39 is provided with a shaft rod 42; the end away from the triangular rotating plate 39 of the shaft rod 42 is provided with a pushing column 43, the pushing column 43 is provided with a guide rod 44 on one side, the guide rod 44 is located below the horizontal rods two 41 on both sides, and the guide rod 44 and the horizontal rods two 41 are arranged in a cross-shaped structure above the second filter plate 8;The bottom side of the push column 43 is provided with a moving plate 45, the push column 43 is provided in an L-shaped structure, the side of the push column 43 away from the guide rod 44 is provided with a side slot in the upper portion, a sliding groove is longitudinally arranged in the side slot, and the end portion of the shaft rod 42 is arranged in the sliding groove; when the eccentric disc 33 swings left and right, the connecting head two 34 eccentrically connected to the side edge will pull the driving rod three 35 to make up-and-down reciprocating motion, then the driving rod three 35 pulls the connecting head one 36, the connecting head one 36 further pulls the third sliding block 37 to realize up-and-down motion on the third track 38; when the connecting head one 36 moves up and down, the horizontal rod one 40 connected to the end portion will be driven to move up and down, the horizontal rod one 40 drives the upper end of the triangular rotating plate 39 to turn to one side, the lower end of the triangular rotating plate 39 is limited by the horizontal rod two 41, when the upper end of the triangular rotating plate 39 turns to the lower left corner, the lower end of the triangular rotating plate 39 moves to the upper right, at this time, the shaft rod 42 will slide in the sliding groove in the side slot, the push column 43 will slide forward and backward on the guide rod 44, the moving plate 45 at the bottom side of the push column 43 will slide forward and backward above the second filter plate 8, the top of the first filter plate 9 is provided with a plurality of convex columns 46, the bottom of the second filter plate 8 is provided with a plurality of concave columns 47, the top of the concave column 47 is provided with a hollow opening, the concave column 47 is provided with a push plate 48, the bottom of the push plate 48 is provided with a plurality of push rods 49, the push rods 49 penetrate through the top surface of the concave column 47 and the convex column 46 to cooperate, the upper portions of the two sides of the concave column 47 are provided with side outlets 50, the flow assisting part replaces the traditional stirrer, drives airflow to flow through mechanical transmission, avoids equipment vibration, thereby prolongs the service life of the filter cloth bag 10, and strengthens airflow mixing effect. In the prior art, a stirrer is usually used to drive waste gas flow to improve gas-liquid mixing effect, but high-speed rotation of the stirrer will produce intense high-frequency vibration; the material of the filter cloth bag 10 is usually flexible fiber fabric, has certain filter porosity but limited physical strength, and needs to be fixed in the dust collector through a support, buckle and other structures; the characteristics of the flexible material and fixed installation determine that the filter cloth bag 10 is very sensitive to equipment vibration; specifically, vibration will continuously rub and collide the filter cloth bag 10 and surrounding components, the flexible fiber fabric will be broken and damaged on the surface under long-term rubbing, and even holes are formed; once the bag is damaged, unfiltered dust-containing waste gas will directly penetrate through; the fixed support, buckle and other components of the filter cloth bag 10 will gradually loosen due to vibration, causing the filter cloth bag 10 to sag and deviate from the fixed position; the deviated bag will change the filter path of the waste gas, part of the waste gas may bypass the bag and directly enter the upper filter plate, causing filter failure; meanwhile, the sagging bag will produce greater shaking under airflow impact, further intensifying the collision damage with surrounding components, forming a vicious cycle.The filtering effect of the filter bag 10 depends on the filtering pores formed by the close arrangement of fibers. Vibration can make the gap between fibers larger, causing the adsorbed dust particles to fall off. On the one hand, the falling dust will re-enter the exhaust gas, increasing the subsequent treatment burden. On the other hand, after the pores become larger, the interception ability of the bag to fine dust decreases, and the filtering efficiency decreases. In order to meet the emission standard, the bag needs to be cleaned frequently, and frequent cleaning will further weaken the fiber strength and accelerate the aging of the bag. Therefore, vibration can cause multiple damages to the physical structure, fixed state and filtering function stability of the filter bag 10. The present application has no high-speed rotating parts and only produces gentle mechanical movement, which will not cause high-frequency vibration of the equipment. Moreover, the present application gently carries the exhaust gas flow, and the gentle airflow will not impact the filter bag 10, and at the same time, it can ensure that the exhaust gas is fully mixed with the alkaline solution. More importantly, the non-vibrating equipment state makes the filter bag 10 always maintain a stable fixed position and physical structure, avoiding damages such as friction, loosening and damage of the filtering layer. Finally, the non-vibration airflow auxiliary design eliminates this damage source.

[0029] The distance between the first filter plate 9 and the second filter plate 8 is set according to the requirements, so that the concave column 47 and the convex column 46 are in contact after the first filter plate 9 and the second filter plate 8 move to the middle part at the same time, so that the groove formed between the adjacent convex columns 46 and the convex groove formed between the adjacent concave columns 47 form a cavity. The exhaust gas entering the cavity will be affected by a certain resistance and rotate inside. The rotating exhaust gas is mixed with the overflowed alkaline solution due to the residence effect, increasing the residence path of the exhaust gas shuttle.

[0030] A strip-shaped groove is arranged on one side of the L-shaped supporting plate 21, and the driving rod three 35 extends through the strip-shaped groove to the side above the second filter plate 8. The adapter plate 12 is in a rhombus structure, an eccentric disc 33 is arranged at the center position of the inner wall of the adapter plate 12, a connecting head two 34 is eccentrically arranged at the side of the eccentric disc 33, the connecting head two 34 and the eccentric disc 33 are movably connected, a connecting head one 36 is arranged at the end of the horizontal rod one 40, and the connecting head one 36 and the side of the third sliding block 37 are connected with a movable piece.

[0031] The number of triangular rotating plates 39 can be reasonably adjusted according to the size of the cross bar and the actual technical requirements. Three or more triangular rotating plates 39 are evenly arranged on the cross bar two 41, and any two adjacent moving plates 45 are arranged in a front and rear manner. When all the moving plates 45 move at the same time, any two adjacent moving plates 45 will be pushed forward in a front and rear manner. When three triangular rotating plates 39 are arranged, two of them can be arranged on both sides, and the other one is arranged at the center position. In this way, when the third sliding block 37 slides up and down, the three triangular rotating plates 39 on the cross bar one 40 will rotate together, thereby pushing the other side of the push column 43. When the three push columns 43 push forward together, the moving plate 45 below will drive the shuttle waste gas forward. When three triangular rotating plates 39 are arranged, the stability of the cross bar one 40 during movement can be achieved. When the number of triangular rotating plates 39 is more than three, the space between the moving plates 45 will be smaller. Since the adjacent moving plates 45 are arranged in a staggered manner, when the number of triangular rotating plates 39 is more than three, the staggered space will be smaller, and the tortuosity of the waste gas shuttle path will be enhanced. The number of triangular rotating plates 39 is set according to the demand, so that the push column 43 can normally operate when moving forward and backward. By arranging the adjacent moving plates 45 in a front and rear alternating manner, the waste gas can shuttle along the broken line path, and the gas-liquid contact area can be increased by 40%. When the waste gas shuttles in the staggered path, it keeps colliding with different moving plates 45. The moving plate 45 moves to push the waste gas that collides with it. When pushing, the particles contained in the waste gas will be extracted, and the particle dispersion degree will be improved. Example two

[0032] An embodiment of a waste gas purification method, comprising the following steps: S101: discharging the waste gas into the wet electrostatic precipitator body 1 through the gas inlet 3; S103: connecting the water inlet pipe 4 with the alkaline solution storage tank to transfer the alkaline solution to the water collecting tank 7; S105: passing the liquid in the water collecting tank 7 into the water distribution tank 11 through the shunt pipe 51, and then spraying it out through the spray head 14; S107: the waste gas is preliminarily filtered through the filter bag 10; S109: after preliminary filtration, the waste gas flows upward again through the first filter plate 9 and the second filter plate 8; S1011: during the process of passing through the first filter plate 9 and the second filter plate 8, the bidirectional driving part is driven to move the two filter plates in opposite directions; S1013: In the movement of the two filter plates moving to the middle or the two filter plates moving to the two sides at the same time, the internal shuttle exhaust gas is compressed and dispersed; S1015: Change the distance between the first filter plate 9 and the second filter plate 8; S1017: When the distance between the second filter plate 8 and the first filter plate 9 is reduced, the upward transmission of the exhaust gas is affected by compression and impact into the filter hole, and the particles contained in the exhaust gas are dispersed under compression; S1019: In the up and down sliding movement of the first filter plate 9 and the second filter plate 8, the flow auxiliary part connected by linkage driving is moved; S1021: When the moving plate 45 moves left and right in the wet electrostatic precipitator body 1, the exhaust gas flow in the wet electrostatic precipitator body 1 is brought up, and the exhaust gas flow is mixed with the sprayed liquid; S1023: Improve the exhaust gas treatment effect, and discharge from the exhaust pipe 2 after the exhaust gas is purified; S1025: The generated sludge is unloaded from the sewage outlet 6.

[0033] The detailed use method and effect of the embodiment are as follows: Firstly, the exhaust gas is discharged into the wet electrostatic precipitator body 1 through the gas inlet 3, filtered upwards through the filter bag 10, and upwards through the first filter plate 9 and the second filter plate 8. The water inlet pipe 4 is connected with the alkaline solution storage tank, the alkaline solution is transmitted to the water collecting tank 7, the liquid in the water collecting tank 7 is introduced into the water distribution tank 11 through the shunt pipe 51, and the liquid is sprayed out by opening the spray head 14.

[0034] Then, the exhaust gas that goes up enters between the first filter plate 9 and the second filter plate 8, and under the action of the filter plate, part of it will stay in the distance between the two filter plates, and will be mixed with the sprayed liquid, and the spraying time will be increased.

[0035] Then, the extension and contraction movement between the driving cylinder 27 and the air rod 26 is generated, the air rod 26 drives the cylinder 25, the cylinder 25 drives the lower L-shaped supporting plate 22, the lower L-shaped supporting plate 22 realizes up and down sliding on the fifth rail 18 through the fifth sliding block 20, when the lower L-shaped supporting plate 22 moves upwards, the driving rod two 16 is pushed upwards, the driving rod one 15 is pulled downwards, and the upper L-shaped supporting plate 21 is pulled downwards, at this time, the first filter plate 9 and the second filter plate 8 are simultaneously moved to the middle, the distance between the filter plates is changed, the exhaust gas residence time is prolonged, and the particle dispersion degree is improved.

[0036] The exhaust gas passing through the two filter plates will keep impacting the filter plates as the distance between the two filter plates changes, and the flow rate of the exhaust gas impacting the filter holes will increase, so that a part of the exhaust gas will rush out of the filter holes of the second filter plate 8 and enter the upper part of the second filter plate 8, and the distance between the exhaust gas rushing up and the spray head 14 will be shortened, so that the liquid sprayed will directly impact the exhaust gas rushing up, and the fusion impact force received by the exhaust gas will increase. Another part of the exhaust gas will rush into the filter holes of the first filter plate 9 after being compressed or stretched, enter the lower part of the first filter plate 9, and contact the filter bag 10 below, so that this part of the exhaust gas is filtered again by the filter bag 10 and then enters the space between the first filter plate 9 and the second filter plate 8 for staying and revolving.

[0037] The exhaust gas staying and revolving between the two filter plates will be compressed and stretched as the distance between the two filter plates changes, and the particles contained therein will be dispersed; after the particles are dispersed, the alkaline solution sprayed from above falls on the second filter plate 8, and a part of it flows into the concave column 47 and can be more fully mixed with the dispersed particles. When the liquid collected in the concave column 47 reaches a certain amount, the push plate 48 remains stable under the action of the gravity of the liquid, ensuring that the liquid is continuously stored in the concave column 47. When the second filter plate 8 moves downward and the first filter plate 9 moves upward, the bottom of the push rod 49 impacts the top surface of the convex column 46, and the push rod 49 pushes the push plate 48 upward, so that the push plate 48 pushes the liquid collected thereon upward and out of the side outlets 50 on both sides. The overflowing liquid flows into the grooves formed between the adjacent convex columns 46 below. After the top of the convex column 46 contacts the bottom of the concave column 47, the groove formed between the adjacent concave columns 47 and the groove formed between the adjacent convex columns 46 form a cavity, and the entering exhaust gas flows in the cavity, while the overflowing liquid directly flows into the cavity and impacts the exhaust gas flowing in the cavity. In this way, the collection of exhaust gas and the collection of liquid are combined. When the second filter plate 8 and the first filter plate 9 are separated, the push rod 49 is not subjected to the downward force from below due to its own gravity, so that it pulls the push plate 48 downward, and the groove in the concave column 47 restores to a collection cavity. The push rod 49 is made of a material with a relatively high density, such as a stainless steel push rod, and the weight of the push rod 49 is greater than that of the push plate 48, so as to ensure that the push rod 49 can reset the push plate 48 by relying on its own gravity when there is no upward force from the convex column 46, so that the concave column 47 restores the liquid collection function. After the two filter plates are pulled apart, the movement will cause the internal exhaust gas and liquid to spread outward, and the purified exhaust gas will be transported upward from the filter holes of the second filter plate 8.

[0038] Meanwhile, the adapter plate 12 swings left and right, which drives the eccentric disc 33 on the inner side to swing left and right. When the eccentric disc 33 swings left and right, it drives the connecting head two 34 connected to the side end, which pulls the driving rod three 35, which pulls the connecting head one 36, which drives the third sliding block 37 to slide on the third track 38. When the third sliding block 37 slides up and down, it drives one end of the triangular turn plate 39 to flip on one side. The center end of the triangular turn plate 39 moves on the horizontal rod two 41. The other end of the triangular turn plate 39 will be driven to rotate in the other direction. Since the other end of the triangular turn plate 39 is connected with the shaft rod 42, which is fixed in the slot on the side of the upper part of the push column 43, when the shaft rod 42 rotates under the triangular turn plate 39, it will pull the push column 43 to move. Since the push column 43 is sleeved on the guide rod 44, it will pull the push column 43 to slide on the guide rod 44. The moving plate 45 will move together above the second filter plate 8. During the moving process, it will bring the waste gas flowing upwards. The waste gas flows between the moving plates 45 and moves together with the moving plates 45. After mixing with the alkaline solution falling from above, the purified gas is discharged from the exhaust pipe 2.

[0039] The skilled in the art can easily implement the present application through the above specific embodiments. However, it should be understood that the present application is not limited to the above specific embodiments. On the basis of the disclosed embodiments, the skilled in the art can arbitrarily combine different technical features to realize different technical solutions.

Claims

1. A waste gas purification treatment device, characterized in that, Includes a wet electrostatic precipitator body (1), an exhaust pipe (2) is connected to the upper part of one side of the wet electrostatic precipitator body (1), a gas inlet (3) is provided below the exhaust pipe (2) on the lower part of the side of the wet electrostatic precipitator body (1), a water inlet pipe (4) is connected to the upper part of the other side of the wet electrostatic precipitator body (1), a dust hopper (5) is provided at the bottom of the wet electrostatic precipitator body (1), and a sewage outlet (6) is provided at the bottom of the dust hopper (5). The wet electrostatic precipitator body (1) is provided with a water collection tank (7), a second filter plate (8), a first filter plate (9), a filter bag (10) and a set of water tanks (11) from top to bottom. The top two sides of the water tank (11) are connected to the bottom of the water collection tank (7) through the diversion pipe (51). The bottom of the water tank (11) is provided with several nozzles (14). A bidirectional drive unit is provided on one side between the first filter plate (9) and the second filter plate (8). A flow auxiliary unit is connected to the bidirectional drive unit. The bidirectional drive unit includes a transition plate (12), with a rotating shaft (13) inserted through the middle of the transition plate (12). The inner end of the rotating shaft (13) is connected to the flow auxiliary unit, and the outer end of the rotating shaft (13) is connected to the inner wall of the wet electrostatic precipitator body (1). The two ends of the transition plate (12) are respectively connected to a drive rod one (15) and a drive rod two (16). The outer ends of the drive rod one (15) and the drive rod two (16) are respectively connected to a sliding mechanism. A cylinder (27) and a matching air rod (26) are connected to the sliding mechanism on one side.

2. The waste gas purification treatment device according to claim 1, characterized in that, The sliding mechanism includes a set of fourth tracks (17), which are fixed to one side of the inner wall of the wet electrostatic precipitator body (1). A set of fifth tracks (18) is provided below the fourth tracks (17). The sides of the fourth tracks (17) and the fifth tracks (18) are provided with matching fourth sliders (19) and fifth sliders (20). The sides of the fourth sliders (19) and the fifth sliders (20) away from the fourth tracks (17) and the fifth tracks (18) are respectively provided with upper L-shaped support plates ( ). 21) and the lower L-shaped support plate (22); the upper part of the drive rod one (15) is movably connected to the bottom side of the upper L-shaped support plate (21); the lower part of the drive rod two (16) is movably connected to the top side of the lower L-shaped support plate (22); the second filter plate (8) is fixed on the upper L-shaped support plate (21); the first filter plate (9) is fixed on the lower L-shaped support plate (22); a strip groove is provided on the side of the upper L-shaped support plate (21) away from the second filter plate (8), and the drive rod three (35) of the flow auxiliary part passes through the strip groove.

3. The waste gas purification treatment device according to claim 2, characterized in that, An extension plate (23) is provided at the center of one side of the lower L-shaped support plate (22). A fixing block (24) is provided on one side of the inner wall of the wet electrostatic precipitator body (1) corresponding to the extension plate (23). A cylinder (25) is provided at the center of the top of the fixing block (24). An air rod (26) is provided at the top of the cylinder (25). A matching cylinder (27) is provided at the upper part of the air rod (26). A triangular seat (28) is provided at the bottom of the cylinder (27). The inner wall of the triangular seat (28) is fixed on one side of the inner wall of the wet electrostatic precipitator body (1). The air rod (26) passes through the triangular seat (28).

4. The waste gas purification treatment device according to claim 3, characterized in that, The inner wall of the wet electrostatic precipitator body (1) is provided with a set of second tracks (29) and a set of first tracks (30) on the side away from the bidirectional drive unit. The second tracks (29) and the first tracks (30) are respectively provided with a matching second slider (31) and a first slider (32). The side of the second filter plate (8) away from the upper L-shaped support plate (21) is fixed to the side of the second slider (31). The side of the first filter plate (9) away from the lower L-shaped support plate (22) is fixed to the side of the first slider (32).

5. The waste gas purification treatment device according to claim 4, characterized in that, The flow auxiliary part includes an eccentric disk (33), the inner end of the rotating shaft (13) is connected to the center of the side of the eccentric disk (33), the side end of the eccentric disk (33) away from the rotating shaft (13) is provided with a second connector (34), the second connector (34) is connected with a third drive rod (35), the third drive rod (35) passes through the strip groove of the upper L-shaped support plate (21) of the bidirectional drive part, the top of the third drive rod (35) is provided with a first connector (36), the side of the first connector (36) is provided with a third slider (37), the side of the third slider (37) away from the first connector (36) is provided with a matching third track (38), the side of the third track (38) away from the third slider (37) is fixed on the inner upper side wall of the wet electrostatic precipitator body (1); the side of the first connector (36) away from the third slider (37) is connected with a moving auxiliary part.

6. The waste gas purification treatment device according to claim 5, characterized in that, The moving auxiliary part includes several triangular rotating plates (39), one end of each triangular rotating plate (39) is connected to a crossbar (40), one end of the crossbar (40) is connected to the end of the connector (36); a crossbar (41) is provided across the middle ends of the triangular rotating plates (39), and the two ends of the crossbar (41) are respectively connected to the inner side walls of the wet electrostatic precipitator body (1); a shaft (42) is provided at the other end of the triangular rotating plate (39); a push column (43) is provided at the end of the shaft (42) away from the triangular rotating plate (39), a guide rod (44) is inserted through one side of the push column (43), and the two ends of the guide rod (44) are respectively fixed to the inner wall of the wet electrostatic precipitator body (1); a moving plate (45) is provided on one side of the bottom of the push column (43).

7. The waste gas purification treatment device according to claim 6, characterized in that, The push column (43) is configured as an L-shaped structure. A side groove is provided on the upper part of the side of the push column (43) away from the guide rod (44). A sliding groove is provided longitudinally in the side groove, and the end of the shaft rod (42) is set in the sliding groove.

8. The waste gas purification treatment device according to claim 7, characterized in that, The top of the first filter plate (9) is provided with several protruding pillars (46), and the bottom of the second filter plate (8) is provided with several concave pillars (47). The top of the concave pillar (47) is a hollow opening. The concave pillar (47) is provided with a push plate (48). The bottom of the push plate (48) is provided with several push rods (49). The push rods (49) pass through the top surface of the concave pillar (47) and the protruding pillar (46) to cooperate. The upper part of both sides of the concave pillar (47) is provided with a side outlet (50).

9. A method for purifying waste gas, characterized in that, The waste gas purification treatment apparatus according to claim 8 comprises the following steps: The exhaust gas is discharged into the wet electrostatic precipitator body (1) through the gas inlet (3); Connect the inlet pipe (4) to the alkaline solution storage tank to transfer the alkaline solution to the collection tank (7); The liquid in the water collection tank (7) enters the water distribution tank (11) through the diversion pipe (51) and is then sprayed out through the nozzle (14); The exhaust gas is initially filtered by passing through the filter bag (10); After initial filtration, it flows upward again through the first filter plate (9) and the second filter plate (8); As the exhaust gas passes through the first filter plate (9) and the second filter plate (8), it drives the bidirectional drive unit, which in turn drives the two filter plates to move in opposite directions. When the two filter plates move towards the center at the same time or move to the sides at the same time, the exhaust gas inside will be compressed and dispersed. Change the distance between the first filter plate (9) and the second filter plate (8); When the distance between the second filter plate (8) and the first filter plate (9) becomes smaller, the exhaust gas transmitted upward is compressed and impacts the filter holes, and the particles contained in the exhaust gas are compressed and dispersed. When the first filter plate (9) and the second filter plate (8) slide up and down, the flow auxiliary part connected by the linkage drive will move the moving plate (45) set in the flow auxiliary part left and right. When the moving plate (45) moves left and right on both sides inside the wet electrostatic precipitator body (1), it causes the exhaust gas inside the wet electrostatic precipitator body (1) to flow, and the exhaust gas flows and mixes with the sprayed liquid. To improve the waste gas treatment effect, the waste gas is discharged from the exhaust pipe (2) after the waste gas purification is completed; The generated sludge is discharged from the sewage outlet (6).

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