Guide plate sedimentation type bag-type dust collector for flue gas pollution abatement

Abstract

The invention relates to the technical field of bag-type dust collectors, in particular to a guide plate sedimentation type bag-type dust collector for flue gas pollution abatement, which comprises a main body, an ash bucket is fixedly connected to the bottom of the main body, an air inlet is formed in the side wall of the ash bucket, a filtering assembly is fixed in the main body, a flow guide part is arranged at the position, below the filtering assembly, in the main body, and a sealing cavity is formed in the position, corresponding to the flow guide part, of the outer side wall of the main body; the filter assembly comprises a fixed plate fixed with the inner wall of the main body, a plurality of mounting ports are formed in the fixed plate, and filter bags are hermetically mounted in the mounting ports. According to the invention, uniform air flow distribution and efficient pre-sedimentation of large-particle dust can be realized, the filtering efficiency of the filter bag is ensured, the service life of the filter bag is prolonged, passive bidirectional energy storage and sequential double ash removal are realized, the problem of ash deposition of the guide plate is solved, the operation and maintenance cost is reduced, the structure is reasonable, the operation and maintenance are convenient, and the ash removal is reliable.

Description

Technical Field

[0001] This invention relates to the field of baghouse dust collector technology, and in particular to a baffle plate settling baghouse dust collector for flue gas pollution control. Background Technology

[0002] In industrial dust control in normal temperature and non-high temperature and high humidity environments, such as woodworking, grain storage and transportation, normal temperature mining crushing, and mechanical grinding and polishing, baghouse dust collectors are widely used as core control equipment due to their stable filtration efficiency and convenient operation and maintenance. As a common type of baghouse dust collector, the baffle-type settling baghouse dust collector achieves uniform distribution of dust-laden airflow and pre-settling of large dust particles through built-in baffles, effectively reducing the filtration load on the filter bags and extending their service life.

[0003] In existing baffle-type settling baghouse dust collectors suitable for treating dry dust at room temperature, the filter bags mostly adopt an external filtration design with an open top and sealed bottom. As a core component of the baghouse dust collector, the baffle still has significant shortcomings, making it difficult to meet the requirements for long-term stable operation. Existing baffles are mostly fixed installation structures, unable to adaptively adjust their posture according to fluctuations in inlet airflow and velocity. Furthermore, the baffles at different positions are easily affected by differences in airflow magnitude, leading to uneven airflow distribution across the filtration chamber cross-section. This not only fails to effectively achieve inertial pre-settling of large dust particles but also easily creates localized high-speed airflow that erodes the filter bags, causing premature filter bag damage. Meanwhile, dry dust easily accumulates on the surface of the fixed guide plate. After long-term operation, the accumulated dust will narrow and block the airflow channel, increase the operating resistance of the equipment, and further increase the filtration burden on the filter bag. The conventional pulse backflushing cleaning method can only act on the filter bag and cannot solve the problem of dust accumulation on the guide plate. The frequent pulse backflushing that is started in order to control the equipment resistance will also aggravate the fatigue damage of the filter bag and further shorten the service life of the filter bag. Summary of the Invention

[0004] This invention provides a baffle-type settling bag filter for flue gas pollution control, which solves the problems mentioned in the background art of existing bag filters for normal temperature operation, where the baffles are mostly fixed and prone to uneven airflow distribution, ineffective pre-settling of large dust particles, and easy dust accumulation on the baffles.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide a baffle plate settling bag filter for flue gas pollution control, comprising a main body; A dust hopper is fixedly connected to the bottom of the main body, and an air inlet is provided on the side wall of the dust hopper. A filter assembly is fixed inside the main body, and a flow guide is provided inside the main body below the filter assembly. A sealing cavity is provided on the outer side wall of the main body corresponding to the flow guide. The filter assembly includes a fixing plate fixed to the inner wall of the main body. The fixing plate has several installation openings, and filter bags are sealed and installed in each installation opening. A perforated bottom plate is fixed to the bottom of the filter bag. An elastic telescopic skeleton is coaxially arranged inside the filter bag. The perforated bottom plates corresponding to all filter bags are rigidly connected in series through a connecting frame. A connecting rod is fixed to the bottom of the connecting frame. The flow guiding section includes several flow guiding plates arranged in parallel. Each flow guiding plate has a connecting shaft fixed on both sides. The connecting shaft is hinged to the inner wall of the main body and one end extends into the sealed cavity. Adjacent flow guiding plates are connected by hinged connecting rods to form a synchronous swing structure.

[0006] The invention is further configured such that the end of the air inlet connected to the ash hopper is an upwardly inclined trumpet-shaped structure, the air outlet of the air inlet is directly opposite the arrangement area of ​​the guide plate, the top side wall of the main body is provided with an air extraction port, and the sealing cavity is a closed cavity structure.

[0007] The present invention is further configured such that the elastic telescopic frame has a built-in reset elastic element. In the absence of external force, the elastic telescopic frame is in a contracted posture, so that the outer wall of the filter bag forms continuous and uniform natural surface folds, and there are no squeezed and sealed gaps at the folds of the filter bag.

[0008] The present invention is further configured such that the flow guide portion also includes an energy storage component and an impact component disposed inside the sealed cavity, wherein the energy storage component is connected to a lower pressure plate that is in drive with the docking rod.

[0009] The present invention is further configured such that the side wall of the docking rod is provided with a docking inclined surface, and the end of the lower pressure plate is provided with a lower pressure inclined surface that fits with the docking inclined surface.

[0010] The present invention is further configured such that the energy storage component includes a fixing ring fixed in a sealed cavity, a rotating shaft rotatably mounted in the fixing ring, a positioning support rod extending into the rotating shaft at one end fixed in the sealed cavity, a transmission rod coaxially fixed in the rotating shaft and rotatably mounted in the rotating shaft, the end of the transmission rod being hinged with two sets of driving teeth arranged in opposite directions along the circumference, and the inner wall of the rotating shaft being provided with mating teeth that engage unidirectionally with the driving teeth.

[0011] The invention is further configured such that the outer wall of the rotating shaft is provided with an inclined groove and a straight groove that communicate with each other, a sliding plate is slidably sleeved on the outer wall of the rotating shaft, a connecting bolt extending into the inclined groove is fixed on the inner wall of the sliding plate, an elastic element is provided between the sliding plate and the inner wall of the sealing cavity, and the lower pressure plate is fixed on the sliding plate.

[0012] The invention is further configured such that the transmission rod includes a rod body, two sets of driving teeth are hinged to the ends of the rod body, a return spring is provided inside the rod body with one end connected to the driving teeth, a second mating inclined surface is provided on the top of the driving teeth, a vertical locking surface is provided on one side of the driving teeth, and a transmission gear is rotatably mounted on the end of the positioning support rod near the transmission rod, the transmission gear meshing with one set of driving teeth and the mating teeth on the inner wall of the rotating shaft respectively.

[0013] The present invention is further configured such that the impact assembly includes a limiting rod fixed in the sealed cavity, an mounting plate is slidably sleeved on the outside of the limiting rod, an impact block is fixed on the side of the mounting plate near the guide plate, and an elastic element is sleeved on the outer wall of the limiting rod between the mounting plate and the inner wall of the sealed cavity.

[0014] The beneficial effects of the baffle plate settling bag filter for flue gas pollution control according to the present invention are as follows: 1. Achieve uniform airflow distribution and efficient pre-settling of large dust particles. The air inlet adopts an upwardly inclined trumpet-shaped structure to guide the dust-laden airflow to act on the guide plate; the guide plate is hinged to the main body through a connecting shaft, and adjacent guide plates form a synchronous swing structure through connecting rods, which can maintain a stable and uniform airflow distribution, avoid scouring the filter bag, and at the same time, intercept large dust particles through inertia and let them fall into the ash hopper, significantly reducing the filtration load on the filter bag.

[0015] 2. Ensure stable filtration efficiency and extend service life of the filter bags. The elastic and stretchable skeleton inside the filter bags allows them to form uniform and natural pleats, ensuring overall filtration efficiency. All filter bags are connected in series via a perforated base plate and connecting frame, and are simultaneously straightened and cleaned by the connecting rod and the lower pressure plate, eliminating the need to stop the machine, reducing the number of pulse cleaning cycles, and minimizing filter bag fatigue damage.

[0016] 3. Achieve passive bidirectional energy storage and sequential dual dust removal. The transmission rod and connecting shaft are linked, and two sets of reverse drive teeth engage with the drive gears, so that the guide plate can drive the rotating shaft to rotate unidirectionally to store energy in both forward and reverse directions. When the stored energy is released, the slide plate drives the lower pressure plate and impact component to act in sequence, first cleaning the filter bag and then vibrating the guide plate. No external power is required, the structure is simple, and the dust removal is reliable.

[0017] 4. Solve the problem of dust accumulation on the guide plate and reduce operation and maintenance costs. The impact component can drive the impact block to strike the guide plate, shaking off the surface dust and preventing airflow channel blockage; the closed sealing cavity can isolate moving parts from dusty airflow, prevent jamming and wear, reduce the frequency of operation and maintenance, and ensure stable operation of equipment. Attached Figure Description

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided in conjunction with the accompanying drawings. Please provide a detailed explanation.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Figure 1 This is a three-dimensional structural diagram of a baffle plate settling bag filter for flue gas pollution control according to the present invention. Figure 2 This is an internal structural diagram of a baffle plate settling bag filter for flue gas pollution control according to the present invention. Figure 3 This is a partial cross-sectional view of the filter assembly of a baffle-type settling bag filter for flue gas pollution control according to the present invention. Figure 4 This is an enlarged view of the guide section of a baffle plate settling bag filter for flue gas pollution control according to the present invention. Figure 5 This is an enlarged view of the impact component of a baffle plate settling bag filter for flue gas pollution control according to the present invention. Figure 6 This is an enlarged view of the energy storage component of a baffle plate settling bag filter for flue gas pollution control according to the present invention. Figure 7 This is a cross-sectional view of the energy storage component of a baffle plate settling bag filter for flue gas pollution control according to the present invention. Figure 8 This is a partial sectional view of the transmission rod of a baffle-type settling bag filter for flue gas pollution control according to the present invention.

[0021] The diagram is labeled as follows: 1. Main body; 11. Air extraction port; 12. Sealing cavity; 13. Ash hopper; 14. Air inlet; 2. Filter assembly; 21. Fixing plate; 22. Mounting port; 23. Filter bag; 24. Elastic telescopic frame; 25. Hollowed-out base plate; 26. Connecting frame; 27. Connecting rod; 28. Connecting inclined surface one; 3. Guide section; 31. Guide plate; 311. Connecting rod; 312. Connecting shaft; 32. Energy storage assembly; 321. Fixing ring; 322. Rotating shaft; 3221. Straight groove; 3222. Inclined groove. 3223, Groove; 323, Connecting tooth; 323, Slide plate; 3231, Connecting bolt; 3232, Lower pressure plate; 3233, Lower pressure slope; 324, Elastic element one; 325, Positioning support rod; 3251, Transmission gear; 326, Transmission rod; 3261, Rod body; 3262, Drive tooth; 3263, Connecting slope two; 3264, Vertical locking surface; 3265, Return spring; 33, Impact assembly; 331, Mounting plate; 332, Impact block; 333, Limiting rod; 334, Elastic element two. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a transmission connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two elements or the interaction between two elements.

[0024] Please see Figure 1 - Figure 8 A baffle plate settling bag filter for flue gas pollution control includes a main body 1; A dust hopper 13 is fixedly connected to the bottom of the main body 1. An air inlet 14 is provided on the side wall of the dust hopper 13. A filter assembly 2 is fixed inside the main body 1. A flow guide 3 is provided inside the main body 1 below the filter assembly 2. A sealing cavity 12 is provided on the outer side wall of the main body 1 corresponding to the position of the flow guide 3. The filter assembly 2 includes a fixing plate 21 fixed to the inner wall of the main body 1. The fixing plate 21 has several installation ports 22. Each installation port 22 is sealed with a filter bag 23. A hollow bottom plate 25 is fixed to the bottom of the filter bag 23. An elastic telescopic frame 24 is coaxially arranged inside the filter bag 23. The hollow bottom plates 25 corresponding to the filter bag 23 are rigidly connected in series through a connecting frame 26. A connecting rod 27 is fixed to the bottom of the connecting frame 26. The elastic telescopic frame 24 has a built-in reset elastic element. In the absence of external force, the elastic telescopic frame 24 is in a contracted posture, so that the outer wall of the filter bag 23 forms continuous and uniform natural surface folds. There are no squeezed and sealed gaps at the folds of the filter bag 23. The flow guide 3 includes several flow guide plates 31 arranged in parallel. Each flow guide plate 31 has a connecting shaft 312 fixed on both sides. The connecting shaft 312 is hinged to the inner wall of the main body 1 and one end extends into the sealing cavity 12. Adjacent flow guide plates 31 are connected by a hinged connecting rod 311 to form a synchronous swing structure. The end of the air inlet 14 connected to the ash hopper 13 is an upwardly inclined trumpet-shaped structure. The air outlet of the air inlet 14 is directly opposite the arrangement area of ​​the guide plate 31. The top side wall of the main body 1 is provided with an air extraction port 11. The sealing cavity 12 is a closed cavity structure. The flow guide 3 also includes an energy storage component 32 and an impact component 33 disposed inside the sealed cavity 12. The energy storage component 32 is connected to a lower pressure plate 3232 that is in transmission cooperation with the docking rod 27. The side wall of the docking rod 27 is provided with a docking inclined surface 28, and the end of the lower pressure plate 3232 is provided with a lower pressure inclined surface 3233 that fits against the docking inclined surface 28.

[0025] By adopting the above technical solution, the guide plate 31 is hinged to the main body 1 through the connecting shaft 312 and forms a synchronous linkage mechanism through the connecting rod 311. The horn-shaped structure of the air inlet 14 accurately guides the airflow, so that the airflow is smoothly dropped to the settling zone. The filter bag 23 cooperates with the elastic telescopic frame 24 and the hollow bottom plate 25, and is linked with the lower pressure plate 3232 through the connecting frame 26 and the docking rod 27 to ensure stable filtration and synchronous dust removal, and improve the overall operating efficiency.

[0026] The energy storage assembly 32 includes a fixing ring 321 fixed within the sealed cavity 12. A rotating shaft 322 is rotatably mounted within the fixing ring 321. A positioning support rod 325, with one end extending into the rotating shaft 322, is fixed within the sealed cavity 12. A transmission rod 326, coaxially fixed with the connecting shaft 312, is rotatably mounted within the rotating shaft 322. Two sets of driving teeth 3262, with their meshing directions arranged in opposite directions along the circumference, are hinged to the end of the transmission rod 326. The inner wall of the rotating shaft 322 is provided with mating teeth 3223 that mesh unidirectionally with the driving teeth 3262. The outer wall of the rotating shaft 322 has interconnected inclined grooves 3222 and straight grooves 3221. A sliding plate 323 is slidably fitted onto the outer wall of the rotating shaft 322. A mating bolt 3231 extending into the inclined groove 3221 is fixed to the inner wall of the sliding plate 323. An elastic element 324 is provided between the sliding plate 323 and the inner wall of the sealed cavity 12. A lower pressure plate 3232 is fixed to the sliding plate 323.

[0027] By adopting the above technical solution, the transmission rod 326 is coaxially fixed with the connecting shaft 312, and efficient power transmission is achieved through two sets of reverse drive teeth 3262, docking teeth 3223 and transmission gear 3251; the inclined groove 3222, docking bolt 3231 and elastic element 324 complete the energy conversion, and output the power through the slide plate 323 and the lower pressure plate 3232, which efficiently converts the swing kinetic energy of the guide plate 31 into dust cleaning power, realizing the dual self-cleaning of the filter bag 23 and the guide plate 31.

[0028] The transmission rod 326 includes a rod body 3261, two sets of drive teeth 3262 hinged to the ends of the rod body 3261, a return spring 3265 with one end connected to the drive teeth 3262 is provided inside the rod body 3261, a mating inclined surface 3263 is provided on the top of the drive teeth 3262, a vertical locking surface 3264 is provided on one side of the drive teeth 3262, and a transmission gear 3251 is rotatably mounted on the end of the positioning support rod 325 near the transmission rod 326. The transmission gear 3251 meshes with one set of drive teeth 3262 and the mating teeth 3223 on the inner wall of the rotating shaft 322.

[0029] By adopting the above technical solution, the transmission rod 326, the bidirectional drive tooth 3262 and the return spring 3265 have obvious advantages in coordinated linkage. The two sets of drive teeth 3262 are arranged in opposite directions around the circumference, and together with the transmission gear 3251 and the docking tooth 3223, the energy conversion from the swing kinetic energy of the guide plate 31 to the unidirectional rotation of the rotating shaft 322 is realized without interruption, and the transmission is stable and the response is rapid.

[0030] The impact assembly 33 includes a limiting rod 333 fixed in the sealed cavity 12. An installation plate 331 is slidably sleeved on the outside of the limiting rod 333. An impact block 332 is fixed on the side of the installation plate 331 near the guide plate 31. An elastic element 334 is sleeved on the outer wall of the limiting rod 333 between the installation plate 331 and the inner wall of the sealed cavity 12.

[0031] By adopting the above technical solution, the limiting rod 333, the mounting plate 331 and the elastic element 334 work together to convert the kinetic energy released by the energy storage component 32 into high-frequency vibration of the guide plate 31, stably realize the dual dust removal function, and ensure the dust removal effect of the guide plate 31.

[0032] Working principle and usage process of this invention: Dust-laden airflow enters the equipment from the air inlet 14 on the side wall of the ash hopper 13. The end of the air inlet 14 connected to the ash hopper 13 is an upwardly inclined trumpet-shaped structure. This structure can prevent the dust-laden airflow from directly scouring the bottom of the ash hopper 13 and causing the settled dust to be stirred up again. At the same time, it can guide the dust-laden airflow upward to directly act on the arrangement area of ​​the guide plate 31, providing basic conditions for the subsequent uniform distribution of airflow and pre-settling.

[0033] After the dust-laden airflow enters the main body 1 from the top, it first passes through multiple guide plates 31 arranged in parallel in the guide section 3. The guide plates 31 can intercept large dust particles in the dust-laden airflow through inertial collision. The intercepted large dust particles fall directly into the ash hopper 13 below by gravity, which can greatly reduce the filtration load of the subsequent filter bags 23 and effectively extend the service life of the filter bags 23.

[0034] The dust-laden airflow, having completed pre-settling, continues to flow upwards and enters the filter assembly 2 inside the main body 1. The dust-laden airflow passes through the outer wall of the filter bag 23 to complete dust filtration and separation. The clean gas passes through the mounting port 22 on the fixed plate 21 and enters the clean chamber at the top of the main body 1, finally exiting the equipment through the exhaust port 11, completing the basic filtration operation. During the filtration process, the elastic telescopic frame 24, coaxially arranged inside the filter bag 23, maintains its contracted posture by relying on the built-in reset elastic element in the absence of external force, causing the outer wall of the filter bag 23 to form continuous and uniform natural surface folds. Moreover, there are no squeezed and sealed gaps at the folds of the filter bag 23, which can ensure that the entire surface of the filter bag 23 can participate in the dust filtration operation normally. Even under low air volume and low load conditions, it can still maintain a stable filtration efficiency and will not have the problem of insufficient filtration area.

[0035] As the dust-laden airflow passes through the guide plate 31, it will cause the guide plate 31 to swing back and forth around the connecting shaft 312 on both sides. The adjacent guide plates 31 are connected by the hinged connecting rod 311 to form a synchronous swing structure, which can ensure that all guide plates 31 swing synchronously at the same angle. There will be no problem of uneven swing caused by the difference in airflow size of guide plates 31 at different positions. It can always maintain a stable airflow uniformity effect and avoid local high-speed airflow scouring the filter bag 23 and causing premature damage to the filter bag 23.

[0036] The reciprocating oscillating motion of the guide plate 31 is synchronously transmitted to the energy storage component 32 inside the sealed cavity 12 via the connecting shaft 312 extending into the sealed cavity 12. The connecting shaft 312 drives the transmission rod 326 to rotate synchronously in both forward and reverse directions. The end of the rod body 3261 of the transmission rod 326 is hinged with two sets of driving teeth 3262. The two sets of driving teeth 3262 are arranged radially along the transmission rod 326, and the meshing teeth of the two sets of driving teeth 3262 are set in completely opposite directions along the circumference of the transmission rod 326. When the transmission rod 326 rotates forward, one set of driving teeth 3262 with the matching orientation will mesh and lock with the mating teeth 3223 through the vertical locking surface 3264, driving the rotating shaft 322 to rotate in a single fixed direction. At the same time, the other set of driving teeth 3262 will dock with the transmission gear 3251 through the second mating inclined surface 3263, thereby pressing this set of driving teeth 3262 into the rod body 3261 through the second mating inclined surface 3263.

[0037] When the transmission rod 326 reverses, the two sets of drive teeth 3262 reverse as well. One set of drive teeth 3262, which is pressed into the rod body 3261, engages with the transmission gear 3251 through the vertical locking surface 3264. The transmission gear 3251 drives the rotating shaft 322 to continue rotating in the original fixed direction. This allows the guide plate 31 to provide power for the energy storage process whether it rotates forward or backward. Regardless of the inlet wind speed or the swing amplitude of the guide plate 31, the energy storage component 32 can store energy once the guide plate 31 moves, with no idle stroke and no power waste.

[0038] During the continuous unidirectional rotation of the rotating shaft 322, the inclined groove 3222 on the outer wall of the rotating shaft 322 and the docking bolt 3231 fixed on the inner wall of the slide plate 323 form a transmission, driving the slide plate 323 to move smoothly along the axial direction of the rotating shaft 322. This continuously compresses the elastic element 324 between the slide plate 323 and the inner wall of the sealing cavity 12 to complete the accumulation of elastic potential energy until the energy stored in the elastic element 324 reaches the set dust removal trigger threshold, providing sufficient instantaneous power for subsequent dust removal actions.

[0039] When the energy stored in the elastic element 324 reaches the set threshold, the connecting bolt 3231 slides from the inclined groove 3222 into the straight groove 3221 that is connected to the inclined groove 3222. At this time, the axial limiting effect of the inclined groove 3222 completely disappears, and the elastic element 324 quickly releases the accumulated elastic potential energy, pushing the slide plate 323 to move at high speed along the axis of the rotation axis 322 towards the main body 1.

[0040] In the first stage of energy storage and release, the slide plate 323 drives the lower pressure plate 3232, which is fixedly connected at the end, to move synchronously at high speed. The end of the lower pressure plate 3232 extends into the interior of the main body 1. Through the pressing slope 3233 and the docking slope 28 on the side wall of the docking rod 27, a close-fitting compression transmission is formed, which accurately converts the power of horizontal movement into a vertical downward pulling force, driving the docking rod 27 and the connecting frame 26 to move synchronously at high speed.

[0041] The connecting frame 26 is rigidly connected to the perforated bottom plate 25 at the bottom of all filter bags 23, which can simultaneously pull the bottom of all filter bags 23 downward at high speed, causing the elastic telescopic skeleton 24 inside the filter bag 23 to stretch rapidly. The filter bags 23, which were originally in a loose and wrinkled state, are instantly straightened. The dust layer attached to the outer wall of the filter bag 23 is completely detached under the action of instantaneous inertial force, and the detached dust falls directly into the ash hopper 13 below by gravity. This straightening and cleaning process is completed simultaneously during the normal filtration process of the filter bags 23, without the need to stop the machine or isolate the filtration in separate compartments. It avoids the problems of reverse swelling of the filter bags 23 and secondary adsorption of detached dust caused by conventional pulse cleaning, which can significantly reduce the number of pulse cleaning starts, reduce fatigue damage to the filter bags 23, and effectively extend the overall service life of the filter bags 23.

[0042] In the second stage of energy release, after the slide plate 323 completes the straightening and dust removal action of the filter bag 23, it continues to move at high speed along the axial direction, contacting the mounting plate 331 of the impact component 33 and pushing the mounting plate 331. The plate then moves at high speed along the limit rod 333 towards the main body 1, simultaneously causing the impact block 332 fixed at the end of the mounting plate 331 to quickly extend into the main body 1 and directly impact the surface of the guide plate 31. This causes the guide plate 31 to vibrate at high frequency, and the dry dust adhering to the surface of the guide plate 31 completely falls off under the vibration, directly into the ash hopper 13 below. This vibration dust removal process can completely solve the problem of dust accumulation on the fixed guide plate 31 and the narrowing and blockage of the airflow channel, avoiding the increase in equipment operating resistance caused by dust accumulation on the guide plate 31, further reducing the filtration burden on the filter bag 23. At the same time, it eliminates the need for an additional independent guide plate dust removal mechanism, relying entirely on the power of energy release, resulting in a simplified structure and low failure rate.

[0043] The sealing cavity 12 set on the outer wall of the main body 1 is a closed cavity structure, which can completely isolate all moving parts of the energy storage component 32 and the impact component 33 from the dust-laden airflow, prevent dry dust from entering the mating gaps of the moving parts and causing jamming and wear, greatly reduce the frequency of equipment maintenance, and ensure long-term stable operation of the equipment.

[0044] During equipment operation, the above-mentioned filtration, energy storage, dust removal, and reset processes are repeated continuously, which can achieve continuous and stable treatment of dust-containing particles. At the same time, it adapts to the fluctuations in inlet air volume and dust concentration throughout the process, without the need for additional manual intervention and control, resulting in extremely low operation and maintenance costs.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A baffle plate settling bag filter for flue gas pollution control, characterized in that, include: Main body (1); The bottom of the main body (1) is fixedly connected to a ash hopper (13), and an air inlet (14) is opened on the side wall of the ash hopper (13). A filter assembly (2) is fixed inside the main body (1), and a flow guide (3) is provided inside the main body (1) below the filter assembly (2). A sealing cavity (12) is opened on the outer side wall of the main body (1) corresponding to the position of the flow guide (3). The filter assembly (2) includes a fixing plate (21) fixed to the inner wall of the main body (1). The fixing plate (21) has several installation ports (22). Each installation port (22) is sealed with a filter bag (23). The bottom of the filter bag (23) is fixed with a hollow bottom plate (25). The filter bag (23) is coaxially provided with an elastic telescopic skeleton (24). All the hollow bottom plates (25) corresponding to the filter bags (23) are rigidly connected in series through a connecting frame (26). The bottom of the connecting frame (26) is fixed with a connecting rod (27). The flow guide (3) includes several flow guide plates (31) arranged in parallel. Each flow guide plate (31) has a connecting shaft (312) fixed on both sides. The connecting shaft (312) is hinged to the inner wall of the main body (1) and one end extends into the sealing cavity (12). Adjacent flow guide plates (31) are connected by a hinged connecting rod (311) to form a synchronous swing structure.

2. The baffle plate settling bag filter for flue gas pollution control according to claim 1, characterized in that: The air inlet (14) is connected to the ash hopper (13) at one end, which is an upwardly inclined trumpet-shaped structure. The air outlet of the air inlet (14) is directly opposite the arrangement area of ​​the guide plate (31). The top side wall of the main body (1) is provided with an air extraction port (11). The sealing cavity (12) is a closed cavity structure.

3. The baffle plate settling bag filter for flue gas pollution control according to claim 1, characterized in that: The elastic telescopic frame (24) has a built-in reset elastic element. When there is no external force, the elastic telescopic frame (24) is in a contracted posture, so that the outer wall of the filter bag (23) forms continuous and uniform natural surface folds, and there are no squeezed and sealed gaps at the folds of the filter bag (23).

4. The baffle plate settling bag filter for flue gas pollution control according to claim 1, characterized in that: The flow guide (3) also includes an energy storage component (32) and an impact component (33) disposed inside the sealed cavity (12). The energy storage component (32) is connected to a lower pressure plate (3232) that is in transmission cooperation with the docking rod (27).

5. A baffle plate settling bag filter for flue gas pollution control according to claim 4, characterized in that: The side wall of the docking rod (27) is provided with a docking inclined surface (28), and the end of the lower pressure plate (3232) is provided with a lower pressure inclined surface (3233) that fits with the docking inclined surface (28).

6. A baffle plate settling bag filter for flue gas pollution control according to claim 4, characterized in that: The energy storage assembly (32) includes a fixing ring (321) fixed in the sealed cavity (12), a rotating shaft (322) is rotatably installed in the fixing ring (321), a positioning support rod (325) with one end extending into the rotating shaft (322) is fixed in the sealed cavity (12), a transmission rod (326) coaxially fixed in the rotating shaft (322) is rotatably installed in the rotating shaft (322), and two sets of driving teeth (3262) with meshing orientations arranged in opposite directions along the circumference are hinged to the end of the transmission rod (326). The inner wall of the rotating shaft (322) is provided with a docking tooth (3223) that meshes unidirectionally with the driving teeth (3262).

7. A baffle plate settling bag filter for flue gas pollution control according to claim 6, characterized in that: The outer wall of the rotating shaft (322) is provided with an inclined groove (3222) and a straight groove (3221) that are interconnected. A sliding plate (323) is slidably sleeved on the outer wall of the rotating shaft (322). A connecting bolt (3231) extending into the inclined groove (3221) is fixed on the inner wall of the sliding plate (323). An elastic element (324) is provided between the sliding plate (323) and the inner wall of the sealing cavity (12). The lower pressure plate (3232) is fixed on the sliding plate (323).

8. A baffle plate settling bag filter for flue gas pollution control according to claim 6, characterized in that: The transmission rod (326) includes a rod body (3261), two sets of drive teeth (3262) are hinged to the end of the rod body (3261), a return spring (3265) is provided inside the rod body (3261) with one end connected to the drive teeth (3262), a second mating inclined surface (3263) is provided on the top of the drive teeth (3262), a vertical locking surface (3264) is provided on one side of the drive teeth (3262), and a transmission gear (3251) is rotatably installed on one end of the positioning support rod (325) near the transmission rod (326). The transmission gear (3251) meshes with one set of drive teeth (3262) and the mating teeth (3223) on the inner wall of the rotating shaft (322).

9. A baffle plate settling bag filter for flue gas pollution control according to claim 4, characterized in that: The impact assembly (33) includes a limiting rod (333) fixed in the sealed cavity (12). The limiting rod (333) is slidably sleeved with an installation plate (331). An impact block (332) is fixed on the side of the installation plate (331) near the guide plate (31). An elastic element (334) is sleeved between the installation plate (331) and the inner wall of the sealed cavity (12) on the outer wall of the limiting rod (333).

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