Preheating flue gas treatment device

Abstract

The invention relates to the technical field of flue gas dust removal treatment, and particularly discloses a preheated flue gas treatment device which comprises a pipe body, a gas inlet and a gas outlet are formed in the pipe body, and a filtering mechanism, a moving mechanism and a cleaning mechanism are arranged in the pipe body; the filter mechanism comprises a filter plate, the filter plate slides by fitting the inner wall of the pipe body, and the filter plate is elastically matched with the pipe body; the moving mechanism comprises a driving part, a moving part and a guiding part, the driving part drives the moving part to longitudinally slide, cleaning liquid is stored on the upper side of the moving part, the guiding part is arranged on the upper side of the moving part and movably connected with the filter plate through a transmission assembly, and after the guiding part is connected with the filter plate through the transmission assembly, the guiding part and the filter plate reversely slide; the cleaning mechanism comprises a gas inlet assembly and a plurality of cleaning assemblies, all the cleaning assemblies are arranged in the pipe body in the circumferential direction at intervals, the gas inlet assembly introduces high-temperature gas into all the cleaning assemblies at the same time, the flue gas treatment device facilitates timely drying treatment after the filter plate is cleaned, and the flue gas filtering effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas dust removal treatment, and in particular to a preheating flue gas treatment device. Background Art

[0002] As an industrial waste gas treatment technology, preheating flue gas treatment is mainly used to remove harmful substances in flue gas, such as particulate matter, sulfur oxides, nitrogen oxides and other pollutants. The flue gas is first introduced into a preheating device (such as a heat exchanger or a waste heat boiler) for heat exchange, and then the flue gas after heat exchange is passed into the filter. The filter captures particulate matter and other pollutants in the flue gas through the filter. After the filter has been working for a long time, the particulate matter in the flue gas is easily blocked in the filter holes, affecting the filtering effect of the filter. It is difficult to completely remove the particulate matter in the filter holes by scraping the surface of the filter with a brush, resulting in unsatisfactory cleaning effect of the filter. Blockage of the filter holes will lead to slow flue gas circulation, flue gas accumulation, and high flue gas temperature, affecting its filtering effect on the flue gas.

[0003] The patent document with authorization announcement number CN117563372B discloses an electrostatic adsorption dust removal type flue gas desulfurization and denitrification pretreatment mechanism and treatment method, including a pre-cooling dust removal mechanism for quickly filtering flue gas, the pre-cooling dust removal mechanism including a compression guide tank installed at the smoke outlet position, a lifting and pushing mechanism installed inside the compression guide tank, a water flow guide pipe installed on the lifting and pushing mechanism, a guide bucket installed on the top of the water flow guide pipe, an air filter layer installed on the guide bucket, a circulating rotating brush installed above the air filter layer, a uniform flow mechanism installed above the circulating rotating brush, and the pre-cooling dust removal mechanism also includes an electrostatic adsorber installed at the air outlet end of the compression guide tank.

[0004] When the pretreatment mechanism provided in the above patent document is working, the exhaust smoke will directly enter the interior of the compression guide tank, and the guide bucket and the air filter layer will reciprocate up and down to squeeze the smoke, so that the smoke inside the compression guide tank quickly passes through the air filter layer, which can effectively increase the air circulation speed. At the same time, the cleaning water and the air filter layer can effectively cool and dust the smoke passing through; However, when using cleaning water to flush the filter, water will inevitably remain on the filter. A wet filter is more likely to adhere to particles, and the particles in the flue gas will clump on the filter, which will increase the degree of blockage of the filter and increase the difficulty of subsequent cleaning of the filter. Summary of the invention

[0005] The present invention provides a preheating flue gas treatment device, which aims to solve the problem in the related art that when filtering flue gas, particulate matter attached to the filter plate is difficult to clean and the cleaning effect is not ideal.

[0006] A preheating flue gas treatment device of the present invention comprises a pipe body, the pipe body is provided with an air inlet and an air outlet, the connection between the pipe body and the air outlet is movably blocked, and the pipe body is provided with a filtering mechanism, a moving mechanism and a cleaning mechanism; The filtering mechanism comprises a filter plate, the filter plate slides against the inner wall of the tube body, and the filter plate and the tube body are elastically matched; The moving mechanism comprises a driving member, a movable member and a guide member, wherein the driving member is arranged at the lower end of the movable member and drives the movable member to slide longitudinally along the inner wall of the tube body, a cleaning liquid is stored on the upper side of the movable member, the guide member is arranged on the upper side of the movable member and is movably connected to the filter plate through a transmission assembly, and after the guide member and the filter plate are connected through the transmission assembly, the guide member and the filter plate slide in opposite directions; The cleaning mechanism includes an air intake assembly and multiple groups of cleaning assemblies, each of the cleaning assemblies is circumferentially spaced between the moving mechanism and the filtering mechanism, and the air intake assembly simultaneously introduces high-temperature gas into each of the cleaning assemblies. The cleaning assemblies are provided with an adjustment structure, which is used to adjust the outlet direction of the cleaning assemblies at the outlet ends.

[0007] The beneficial effects are: improving the cleaning effect of the filter plate and drying the filter plate in time, the moving mechanism pushes the cleaning liquid upward, and drives the filter plate downward through the transmission component, so that the filter plate is immersed in the cleaning liquid, and the cleaning component passes gas into the filter plate to impact the filter plate, promote the separation of impurities relative to the filter plate, and after the filter plate is cleaned, pass high-temperature gas into the filter plate to promote the drying of the filter plate surface, avoid the adhesion of particles on the filter plate after subsequent flue gas enters, and ensure the filtering effect of the flue gas treatment device on the flue gas.

[0008] Preferably, the cleaning assembly comprises a connecting member and an air outlet member, a push block is slidably provided on the connecting member, a slide groove which is radially consistent with the tube body is provided on the connecting member, the push block is slidably matched with the slide groove, the air inlet end of the air outlet member is connected to the air inlet assembly, and the air outlet end of the air outlet member is opposite to the axial direction of the tube body; The adjusting structure includes an adjusting member, an adjusting gear and an adjusting rack. The adjusting member and the push block slide synchronously along the slide groove. The adjusting member is rotatably connected to a connecting shaft. One end of the connecting shaft is fixed to the air outlet member, and the other end of the connecting shaft is fixed to the adjusting gear. The adjusting rack is fixed relative to the tube body, and the adjusting gear is meshed with the adjusting rack.

[0009] The beneficial effects are: the adjustment structure is used to adjust the air outlet direction of the cleaning component so that the airflow discharged from the cleaning component can fully contact with different positions of the filter plate. When the driving component pushes the push block to slide, the adjustment part slides synchronously with the push block. The adjustment part drives the adjustment gear to slide along the adjustment rack through the connecting shaft. The adjustment gear rotates under the meshing action with the adjustment rack. When the adjusting gear rotates, it drives the connecting shaft and the air outlet part to rotate, adjust the air outlet direction of the air outlet part, promote full contact between the airflow and the filter plate, avoid the situation where the edge of the filter plate cannot contact the airflow, and improve the cleaning and drying effects of the filter plate.

[0010] Preferably, two adjustment plates are further provided inside the air outlet piece, with the side facing the axial direction of the tube body as the inner side, and the outer end portion of the adjustment plate is rotatably matched with the air outlet end of the air outlet piece, and the adjustment plate is also connected to the connecting piece through an adjusting shaft, and the adjusting shaft is rotatably matched with the adjustment plate, and the upper end surface of the connecting piece is provided with a guide groove that is slidably matched with the two adjustment shafts one by one, and the spacing between the two guide grooves decreases from the outside to the inside, and the push block is also connected to a guide rod, and the two ends of the guide rod are respectively rotatably matched with the two adjustment shafts, and the length of the guide rod is adapted to the change in the spacing between the two adjustment shafts.

[0011] The beneficial effects are: further improving the cleaning and drying effect of the cleaning component on the filter plate, the adjusting shaft slides synchronously with the push block, and when the adjusting shaft slides in the guide groove, it is affected by the change in the spacing between the two guide grooves. When the adjusting shaft slides from the outside to the inside, the opening and closing degree of the inner end of the adjusting plate changes. Under the condition of constant air intake, the flow rate of the airflow discharged from the inner ends of the two adjusting plates changes with the change in the opening and closing degree of the inner ends of the two adjusting plates, thereby adjusting the diffusion range of the airflow. The adjusting plate can further promote the full contact between the airflow and the filter plate by changing the airflow velocity and diffusion range.

[0012] Preferably, the cleaning mechanism also includes a driving assembly, which includes a lifting member, a connecting ring and a plurality of connecting rods. A groove body is provided in the tube wall of the tube body, and the connecting ring longitudinally slides with the tube body in the groove body. Each connecting rod is fixed relative to the connecting ring, and an inclined block is fixed to the upper end of each connecting rod. Each inclined block corresponds to each push block one by one, and the relative end faces of the inclined block and the push block are both inclined.

[0013] Preferably, the transmission assembly includes a guide frame, gear 1, tooth portion 1 and tooth portion 2, the guide member is annular, the guide frame is elastically connected to the filter plate at the lower side of the filter plate, a guide cylinder is coaxially fixed to the upper side of the guide frame, the filter plate and the guide cylinder are longitudinally slidably matched, the gear 1 extends into the guide cylinder, the tooth portion 1 is longitudinally arranged on the side wall of the guide cylinder and meshes with the gear 1, and the tooth portion 2 is longitudinally fixed to the upper side of the guide member and movably meshes with the gear 1.

[0014] Preferably, a fixing rod is fixed in the tube body, the gear is rotatably mounted on the lower end of the fixing rod, and the tube body is connected to the guide cylinder via a tension spring.

[0015] Preferably, a through hole is provided at the center of the filter plate, a block is provided on the inner wall of the through hole, a connecting groove is provided on the guide cylinder, the block is longitudinally slidably matched with the connecting groove, a spring block is provided on the guide member, the spring block is horizontally slidably matched with the guide member and elastically connected to the guide member, and the spring block is movably abutted against the block.

[0016] The beneficial effects are: reducing the liquid attached to the surface of the filter plate after it is separated from the cleaning liquid, and when the guide moves down to the point where the spring block abuts against the stopper on the filter plate, the filter plate is pressed down and the spring between the filter plate and the guide frame is compressed. The guide continues to move down until the spring block is disengaged from the stopper, and the filter plate quickly bounces upward under the elastic force of the spring, promoting the separation of the liquid on the filter plate surface, thereby increasing the subsequent drying speed of the filter plate.

[0017] Preferably, there are at least two of the spring blocks, and at least two of the spring blocks are longitudinally spaced apart from each other on the guide member.

[0018] The beneficial effect is that a plurality of spring blocks arranged at intervals in the longitudinal direction can promote the filter plate to shake multiple times, so as to fully remove the liquid attached to the surface of the filter plate.

[0019] Preferably, a blocking plate is longitudinally slidably provided in the tube body, the blocking plate is fixed to the upper end surface of the movable part, and the movable part moves upward to push the blocking plate to block the air outlet.

[0020] The beneficial effects of the present invention are: (1) Improve the cleaning effect of the filter plate and dry the filter plate in time. The moving mechanism pushes the cleaning liquid upward and drives the filter plate downward through the transmission component so that the filter plate is immersed in the cleaning liquid. The cleaning component passes gas to the filter plate to impact the filter plate and promote the separation of impurities from the filter plate. After the filter plate is cleaned, high-temperature gas is passed to the filter plate to promote the drying of the filter plate surface and avoid the adhesion of particles on the filter plate after the subsequent flue gas enters, thereby ensuring the filtering effect of the flue gas treatment device on the flue gas.

[0021] (2) The adjustment structure is used to adjust the air outlet direction of the cleaning component so that the airflow discharged from the cleaning component can fully contact different positions of the filter plate. When the driving component pushes the push block to slide, the adjustment member slides synchronously with the push block. The adjustment member drives the adjustment gear to slide along the adjustment rack through the connecting shaft. The adjustment gear rotates under the meshing action with the adjustment rack. When the adjusting gear rotates, it drives the connecting shaft and the air outlet member to rotate, adjusting the air outlet direction of the air outlet member, promoting full contact between the airflow and the filter plate, avoiding the situation where the edge of the filter plate cannot contact the airflow, and improving the cleaning and drying effects of the filter plate.

[0022] (3) To reduce the amount of liquid adhering to the surface of the filter plate after it is separated from the cleaning liquid, when the guide moves down until the spring block contacts the stopper on the filter plate, the filter plate is pressed down and the spring between the filter plate and the guide frame is compressed. The guide continues to move down until the spring block is separated from the stopper. The filter plate quickly bounces upward under the elastic force of the spring, promoting the separation of the liquid on the filter plate surface, thereby increasing the subsequent drying speed of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the connection between the filter plate and the guide frame in the present invention.

[0025] Figure 3 It is a structural schematic diagram of the filter plate in the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the cleaning component in the present invention.

[0027] Figure 5 It is a schematic structural diagram of the coordination between the regulating plate and the air outlet member in the present invention.

[0028] Figure 6 It is a schematic diagram of the state in which two adjustment plates are relatively separated in the present invention.

[0029] Reference numerals: 1. Tube body; 11. Air inlet; 12. Air outlet; 13. Sealing plate; 2. Filter plate; 200. Block; 21. Guide frame; 22. Guide cylinder; 221. Tooth part 1; 222. Connecting groove; 23. Gear part 1; 231. Fixed rod; 3. Movable part; 31. Guide part; 32. Tooth part 2; 33. Driving part; 4. Connecting part; 400. Slide groove; 401. Guide groove; 41. Push block; 411. Guide rod; 42. Adjusting part; 421. Connecting shaft; 422. Adjusting gear; 423. Adjusting rack; 43. Adjusting plate; 431. Adjusting shaft; 44. Air outlet; 5. Connecting ring; 51. Connecting rod; 52. Bevel block; 53. Lifting part. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figure 1 As shown, the preheating flue gas treatment device of the present invention comprises a pipe body 1, which is provided with an air inlet 11 and an air outlet 12, and a filtering mechanism is provided in the tank body. The flue gas enters the pipe body 1 from the air inlet 11 and passes through the filtering mechanism. The filtering mechanism filters the particulate matter in the flue gas, and the filtered flue gas is discharged through the air outlet 12. The filtering mechanism is provided with a filter plate 2 for separating the particulate matter. A cleaning liquid is stored in the pipe body 1. When the treatment device treats the flue gas, the liquid level of the cleaning liquid is located below the air outlet 12. After the filter plate 2 has been used for a certain period of time, the particulate matter on its surface needs to be cleaned to ensure the normal operation of the filter plate 2. A moving mechanism and a cleaning mechanism for cleaning the filter plate 2 are also provided in the pipe body 1. The cleaning liquid is located at On the upper side of the moving mechanism, the moving mechanism pushes the cleaning liquid upward when it moves upward, and the connection between the air outlet 12 and the tube body 1 is flexibly blocked, which can be flexibly blocked by a control valve or a movable blocking plate 13 to prevent the cleaning liquid from flowing out of the air outlet 12 when it moves upward. The moving mechanism also drives the filter plate 2 to move downward and immerse in the cleaning liquid. The filter plate 2 slides longitudinally against the inner wall of the tube body 1, and the cleaning mechanism introduces gas into the filter plate 2 to impact the filter plate 2 and promote the separation of impurities relative to the filter plate 2. In addition, after the filter plate 2 is cleaned, the gas introduced by the cleaning mechanism can promote the drying of the surface of the filter plate 2. In order to improve the drying efficiency of the filter plate 2, part of the filtered high-temperature flue gas can also be introduced into the cleaning mechanism to allow the filter plate 2 to be quickly dried under the action of the hot air flow.

[0032] The moving mechanism includes a driving member 33, a movable member 3 and a guide member 31. The movable member 3 is in the shape of a circular plate. The driving member 33 is arranged at the lower end of the movable member 3. The driving member 33 may be a cylinder. The driving member 33 is used to drive the movable member 3 to slide longitudinally along the inner wall of the tube body 1. The cleaning liquid is stored on the upper side of the movable member 3. When the movable member 3 moves upward, it pushes the cleaning liquid upward. The guide member 31 is arranged on the upper side of the movable member 3 and is movably connected to the filter plate 2 through a transmission assembly. After the guide member 31 is connected to the filter plate 2 through the transmission assembly, the guide member 31 slides in the opposite direction to the filter plate 2. like Figures 1 to 3As shown, the transmission assembly includes a guide frame 21, a gear 1 23, a tooth 1 221 and a tooth 2 32. The guide member 31 is annular. The guide frame 21 is elastically connected to the filter plate 2 at the lower side of the filter plate 2. A guide cylinder 22 is coaxially fixed on the upper side of the guide frame 21. The filter plate 2 and the guide cylinder 22 are longitudinally slidably matched. A fixing rod 231 is fixed in the tube body 1. The gear 1 23 is rotatably mounted on the lower end of the fixing rod 231. The tube body 1 is connected to the guide cylinder 22 through a tension spring. The gear extends into the guide cylinder 22. The gear 1 Part 1 221 is longitudinally arranged on the side wall of the guide cylinder 22 and meshes with the gear 1 23. Tooth part 2 32 is longitudinally fixed on the upper side of the guide cylinder 21 and movably meshes with the gear 1 23. After the movable part 3 moves up until the tooth part 2 32 contacts the gear 1 23, it continues to move up to drive the gear 1 23 to rotate. The rotation of the gear 1 23 drives the tooth part 1 221 to move in the opposite direction relative to the tooth part 2 32, that is, the guide cylinder 22 and the guide frame 21 move downward. When the guide frame 21 moves downward, the filter plate 2 is pulled downward to be immersed in the cleaning liquid.

[0033] like Figure 1 as well as Figures 4 to 6 As shown, after the filter plate 2 is immersed in the cleaning liquid, the cleaning mechanism impacts the filter plate 2 through gas, promotes the vibration of the filter plate 2, and thus improves the cleaning effect of the filter plate 2. The cleaning mechanism is located between the filtering mechanism and the moving mechanism. The cleaning mechanism includes an air intake component and multiple groups of cleaning components. A plurality of mounting grooves are evenly arranged on the circumferential side wall of the tube body 1. Each cleaning component is arranged in each mounting groove one by one, with the side facing the axial direction of the tube body 1 as the inner side. The air intake end of the cleaning component is arranged at its outer end, and the air outlet end of the cleaning component is arranged at its inner end. The air intake component simultaneously passes gas into the air intake end of each cleaning component. After the gas is discharged through the air outlet end, it enters the cleaning liquid and impacts the filter plate 2 upward.

[0034] The cleaning assembly includes a connecting piece 4, an air outlet piece 44 and an adjusting mechanism. A push block 41 is slidably provided on the connecting piece 4. A slide groove 400 which is radially consistent with the tube body 1 is provided on the connecting piece 4. The push block 41 slidably cooperates with the slide groove 400. The cleaning mechanism includes a driving assembly for pushing the push block 41 to slide. In order to improve the cleaning effect of the filter plate 2, the adjusting structure is used to adjust the air outlet direction of the cleaning assembly so that the airflow discharged from the cleaning assembly is fully in contact with different positions of the filter plate 2. The adjusting structure includes an adjusting piece 42, an adjusting gear 422 and an adjusting rack 423. The adjusting piece 42 and the push block 41 slide synchronously along the slide groove 400. The adjusting piece 42 is rotatably connected to a connecting shaft 421. One end of the connecting shaft 421 is connected to the air outlet piece 44. The adjusting gear 422 is meshed with the adjusting rack 423. When the driving assembly pushes the push block 41 to slide, the adjusting member 42 slides synchronously with the push block 41. The adjusting member 42 drives the adjusting gear 422 to slide along the adjusting rack 423 through the connecting shaft 421. The adjusting gear 422 rotates under the meshing action with the adjusting rack 423. When the adjusting gear 422 rotates, it drives the connecting shaft 421 and the air outlet member 44 to rotate, adjust the air outlet direction of the air outlet member 44, promote the full contact between the airflow and the filter plate 2, avoid the situation that the edge of the filter plate 2 cannot contact with the airflow, and improve the cleaning effect of the filter plate 2.

[0035] The driving assembly includes a lifting member 53, a connecting ring 5 and a plurality of connecting rods 51. A groove is provided in the tube wall of the tube body 1. The connecting ring 5 is longitudinally slidably matched with the tube body 1 in the groove. Each connecting rod 51 is fixed relative to the connecting ring 5. An inclined block 52 is fixed to the upper end of each connecting rod 51. Each inclined block 52 corresponds to each push block 41 one by one. The opposite end surfaces of the inclined block 52 and the push block 41 are both inclined. The lifting member 53 can be a cylinder. The lifting member 53 is located in the inner wall of the tube body 1. When the lifting member 53 is working, it drives the connecting ring 5 to rise and fall, and drives each connecting rod 51 to rise and fall synchronously. When the connecting rod 51 rises, the inclined block 52 pushes the push block 41 to slide from the outside to the inside, so that the air outlet member 44 and the connecting member 4 rotate a certain angle, change the air outlet direction of the air outlet member 44, and after the inclined block 52 moves down, the connecting member 4 and the air outlet member 44 automatically reset under the action of their own gravity.

[0036] In order to further promote the full contact between the airflow and the filter plate 2, two adjustment plates 43 are further provided inside the air outlet member 44, with the side facing the axial direction of the tube body 1 as the inner side, the outer end of the adjustment plate 43 is rotatably matched with the air outlet end of the air outlet member 44, the adjustment plate 43 is also connected to the connecting member 4 through an adjustment shaft 431, the adjustment shaft 431 is rotatably matched with the adjustment plate 43, the upper end surface of the connecting member 4 is provided with a guide groove 401 which is slidably matched with the two adjustment shafts 431, the spacing between the two guide grooves 401 decreases from the outside to the inside, the push block 41 is also connected to a guide rod 411, the two ends of the guide rod 411 are respectively rotatably matched with the two adjustment shafts 431, the guide rod 411 is a telescopic rod, and the length of the guide rod 411 is adapted to the spacing change of the two adjustment shafts 431; The adjusting shaft 431 slides synchronously with the push block 41. When the adjusting shaft 431 slides in the guide groove 401, it is affected by the change in the distance between the two guide grooves 401. When the adjusting shaft 431 slides from the outside to the inside, the distance between the two adjusting shafts 431 decreases, pushing the two adjusting plates 43 to rotate relative to the air outlet member 44, and the opening and closing degree of the inner ends of the two adjusting plates 43 increases. Under the condition of constant air intake, the speed of the air flow discharged from the inner ends of the two adjusting plates 43 decreases with the increase of the opening and closing degree of the inner ends of the two adjusting plates 43, and the diffusion range of the air flow from the two adjusting plates 43 increases. The discharge speed of the inner end portion 43 increases with the increase of the opening and closing degree of the inner ends of the two adjustment plates 43. When there are differences in the air flow velocity, there are differences in the diffusion path in the cleaning liquid along the discharge direction. Therefore, changing the air flow velocity can also adjust the contact position between the air flow and the filter plate 2. By changing the air flow velocity and the diffusion range through the two adjustment plates 43, the full contact between the air flow and the filter plate 2 can be further promoted. In other embodiments, the speed at which the gas is discharged from the air outlet 44 can also be changed by adjusting the amount of gas filled into the cleaning component per unit time by the air intake component.

[0037] After the filter plate 2 is cleaned, the cleaning liquid attached to the filter plate 2 needs to be cleaned and dried in time. Part of the filtered flue gas can be passed into each cleaning component through the air intake component. The hot air flow discharged from each cleaning component is in full contact with the filter plate 2, which can promote the rapid drying of the surface of the filter plate 2.

[0038] In order to reduce the liquid attached to the surface of the filter plate 2 after it is separated from the cleaning liquid and further improve the drying efficiency of the filter plate 2, when the guide member 31 is separated from the filtering mechanism, the attachment of the liquid can be reduced by driving the filter plate 2 to shake. A through hole is opened at the center of the filter plate 2, and a stopper 200 is provided on the inner wall of the through hole. A connecting groove 222 is opened on the guide cylinder 22, and the stopper 200 and the connecting groove 222 are longitudinally slidably matched. A spring block is provided on the guide member 31, and the spring block slides with the guide member 31 in the horizontal direction and is elastically connected to the guide member 31. The spring block and the stopper 200 are movably abutted. When the filter plate 2 is immersed in the cleaning liquid, each spring block is located on the upper side of the filter plate 2. After the filter plate 2 is cleaned, the guide member 31 moves downward and drives the guide cylinder 22 and When the guide frame 21 moves up and the guide member 31 moves down until the spring block abuts against the stop block 200 on the filter plate 2, the filter plate 2 is pressed down and the spring between the filter plate 2 and the guide frame 21 is compressed. After the guide member 31 continues to move down until the spring block is disengaged from the stop block 200, the filter plate 2 quickly bounces upward under the elastic force of the spring, promoting the separation of the liquid on the surface of the filter plate 2. In order to improve the removal effect of the liquid on the filter plate 2, a plurality of spring blocks can be provided, and there are at least two spring blocks spaced apart in the longitudinal direction. The number of spring blocks spaced apart in the longitudinal direction is preferably set to two to three. In the process of the guide member 31 moving down, a plurality of spring blocks spaced apart in the longitudinal direction can promote the filter plate 2 to shake multiple times, so as to fully remove the liquid attached to the surface of the filter plate 2 and improve the subsequent drying speed of the filter plate 2.

[0039] The preheating flue gas treatment device provided by the present invention can effectively clean the particulate matter attached to the filter plate in a timely manner, and dry the filter plate in a timely manner after cleaning, thereby ensuring the filtering effect of the flue gas treatment device on the flue gas.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A preheating flue gas treatment device, comprising a pipe body (1), wherein the pipe body (1) is provided with an air inlet (11) and an air outlet (12), characterized in that: The connection between the tube body (1) and the air outlet (12) is movably blocked, and a filtering mechanism, a moving mechanism and a cleaning mechanism are provided in the tube body (1); The filtering mechanism comprises a filter plate (2), the filter plate (2) slidingly adheres to the inner wall of the tube body (1), and the filter plate (2) and the tube body (1) are elastically matched; The moving mechanism comprises a driving member (33), a movable member (3) and a guiding member (31); the driving member (33) is arranged at the lower end of the movable member (3) and drives the movable member (3) to slide longitudinally against the inner wall of the tube body (1); a cleaning liquid is stored on the upper side of the movable member (3); the guiding member (31) is arranged on the upper side of the movable member (3) and is movably connected to the filter plate (2) via a transmission assembly; after the guiding member (31) and the filter plate (2) are connected via the transmission assembly, the guiding member (31) and the filter plate (2) slide in opposite directions; The cleaning mechanism includes an air intake assembly and multiple groups of cleaning assemblies, each of the cleaning assemblies is circumferentially spaced between the moving mechanism and the filtering mechanism, and the air intake assembly simultaneously introduces high-temperature gas into each of the cleaning assemblies. The cleaning assemblies are provided with an adjustment structure, which is used to adjust the outlet direction of the cleaning assemblies at the outlet ends.

2. The preheating flue gas treatment device according to claim 1, characterized in that: The cleaning component comprises a connecting member (4) and an air outlet member (44); a push block (41) is slidably provided on the connecting member (4); a slide groove (400) is provided on the connecting member (4) and is radially consistent with the tube body (1); the push block (41) and the slide groove (400) are slidably matched; an air inlet end of the air outlet member (44) is connected to the air inlet component; and an air outlet end of the air outlet member (44) is axially opposite to the tube body (1); The adjusting structure comprises an adjusting member (42), an adjusting gear (422) and an adjusting rack (423); the adjusting member (42) and the pushing block (41) slide synchronously along the sliding groove (400); the adjusting member (42) is rotatably connected to a connecting shaft (421); one end of the connecting shaft (421) is fixed to the air outlet member (44); the other end of the connecting shaft (421) is fixed to the adjusting gear (422); the adjusting rack (423) is fixed relative to the tube body (1); and the adjusting gear (422) is meshed with the adjusting rack (423).

3. The preheating flue gas treatment device according to claim 2, characterized in that: Two adjustment plates (43) are further provided inside the air outlet member (44), with the side facing the axial direction of the tube body (1) as the inner side, and the outer end of the adjustment plate (43) is rotationally matched with the air outlet end of the air outlet member (44). The adjustment plate (43) is also connected to the connecting member (4) via an adjustment shaft (431), and the adjustment shaft (431) is rotationally matched with the adjustment plate (43). The upper end surface of the connecting member (4) is provided with a guide groove (401) that is slidably matched with the two adjustment shafts (431) one by one, and the spacing between the two guide grooves (401) decreases from the outside to the inside. The push block (41) is also connected to a guide rod (411), and the two ends of the guide rod (411) are respectively rotationally matched with the two adjustment shafts (431), and the length of the guide rod (411) is adapted to the change in the spacing between the two adjustment shafts (431).

4. The preheating flue gas treatment device according to claim 2, characterized in that: The cleaning mechanism further comprises a driving assembly, the driving assembly comprising a lifting member (53), a connecting ring (5) and a plurality of connecting rods (51); a groove is provided in the wall of the tube body (1); the connecting ring (5) is longitudinally slidably matched with the tube body (1) in the groove; each of the connecting rods (51) is fixed relative to the connecting ring (5); an inclined block (52) is fixed to the upper end of each of the connecting rods (51); each of the inclined blocks (52) corresponds to each of the pushing blocks (41) one by one; and the opposite end faces of the inclined blocks (52) and the pushing blocks (41) are both in the shape of inclined surfaces.

5. The preheating flue gas treatment device according to claim 1, characterized in that: The transmission assembly comprises a guide frame (21), a gear 1 (23), a tooth portion 1 (221) and a tooth portion 2 (32); the guide member (31) is annular; the guide frame (21) is elastically connected to the filter plate (2) at the lower side of the filter plate (2); a guide cylinder (22) is coaxially fixed to the upper side of the guide frame (21); the filter plate (2) and the guide cylinder (22) are longitudinally slidably matched; the gear 1 (23) extends into the guide cylinder (22); the tooth portion 1 (221) is longitudinally arranged on the side wall of the guide cylinder (22) and meshes with the gear 1 (23); the tooth portion 2 (32) is longitudinally fixed to the upper side of the guide member (31) and movably meshes with the gear 1 (23).

6. The preheating flue gas treatment device according to claim 5, characterized in that: A fixing rod (231) is fixed inside the tube body (1), the gear 1 (23) is rotatably mounted on the lower end of the fixing rod (231), and the tube body (1) is connected to the guide cylinder (22) via a tension spring.

7. The preheating flue gas treatment device according to claim 6, characterized in that: A through hole is provided at the center of the filter plate (2), a stopper (200) is provided on the inner wall of the through hole, a connecting groove (222) is provided on the guide cylinder (22), the stopper (200) and the connecting groove (222) are longitudinally slidably matched, a spring block is provided on the guide member (31), the spring block is horizontally slidably matched with the guide member (31) and elastically connected to the guide member (31), and the spring block and the stopper (200) are movably abutted.

8. The preheating flue gas treatment device according to claim 7, characterized in that: There are at least two of the spring blocks, and at least two of the spring blocks are longitudinally spaced apart on the guide member (31).

9. The preheating flue gas treatment device according to claim 1, characterized in that: A blocking plate (13) is longitudinally slidably disposed in the tube body (1), the blocking plate (13) being fixed to the upper end surface of the movable member (3), and the movable member (3) moves upward to push the blocking plate (13) to block the air outlet (12).

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