High-temperature-resistant cloth bag dust removal filter core assembly

Abstract

The application discloses a high-temperature-resistant cloth bag dust removal filter core assembly and relates to the technical field of cloth bag dust removal.The dust remover is provided with an overhauling cover plate, a flower plate is fixedly installed in the dust remover, a plurality of plate holes are formed in the flower plate, a filter mechanism is arranged in each plate hole, dust in dust-containing airflow is separated from the filter mechanism, and finally discharged gas reaches environmental protection standards.The filter core assembly has good high-temperature resistance, can automatically adjust the filter bag support spacing according to temperature changes, avoids friction and damage of the filter bag due to thermal expansion and cold contraction, prolongs the service life under high-temperature working conditions, can quickly position the filter bag when the filter bag is damaged, reduces the risk of excessive dust, quickly adjusts the position of the pulse blowing mechanism during unified replacement or overhauling of the damaged filter bag, greatly simplifies the filter bag replacement process, is suitable for complex high-temperature working conditions as a whole, is stable in operation and convenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of baghouse dust collection technology, and in particular to a high-temperature resistant baghouse dust collection filter element assembly. Background Technology

[0002] Baghouse dust collectors are industrial environmental protection equipment that uses filter bags to filter and purify dust-laden gases. They are suitable for a wide range of dust concentrations and can be adapted to complex working conditions such as high temperature, high humidity, and corrosiveness by optimizing the filter bag material and dust removal system. They are one of the mainstream equipment for industrial dust control and are widely used in industries that generate dust, such as metallurgy, chemical industry, power, and waste incineration.

[0003] In high-temperature operating conditions, the following problems arise: First, the filter bags have poor high-temperature adaptability, easily shrinking at high temperatures and rebounding at low temperatures, leading to continuous friction with the rigid longitudinal ribs and subsequent damage, shortening their service life. Second, filter bag damage is difficult to detect (unless the damage is very severe, rendering the filter almost useless), making location difficult. Traditional detection relies on manual inspection or delayed dust concentration monitoring, which can easily lead to excessive emissions. Third, the pulse jet cleaning mechanism is cumbersome to disassemble and assemble; the jet pipe is fixed to the fixed pipe, and filter bags must be disassembled one by one when replacing them, which is time-consuming and labor-intensive. These defects result in high equipment maintenance costs, poor operational stability, and difficulty in meeting the requirements of complex high-temperature operating conditions. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of difficult installation and easy damage of dust collector bags in the prior art, and to propose a high-temperature resistant bag dust collector filter element assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-temperature resistant bag filter assembly includes a dust collector, a maintenance cover plate on the dust collector, a tube sheet fixedly installed inside the dust collector, a plurality of holes on the tube sheet, and a filtration mechanism in each hole. The filtration mechanism separates dust from the dust-laden airflow, so that the final emitted gas meets environmental protection standards. During the filtration process, the filtration state is adjusted according to temperature changes, and the damaged parts are located simultaneously.

[0007] The pulse jet cleaning mechanism is used to clean the dust adsorbed on the filter mechanism.

[0008] Two hydraulic rods are fixedly installed inside the dust collector, and a push plate is fixedly installed on the drive end of both hydraulic rods.

[0009] The auxiliary installation mechanism is mounted on the push plate and is used for the unified installation and disassembly of the pulse jet cleaning mechanism, and to adjust its position to facilitate the installation of the filter mechanism.

[0010] In the above-mentioned high-temperature resistant bag filter assembly, the filtration mechanism includes a filter bag that is snapped into a plate hole. A flange for sealing and fixing is installed between the filter bag and the tube sheet. The flange has multiple sliding grooves. A nickel-titanium alloy wire is fixedly installed in each sliding groove. A longitudinal rib is fixedly installed at one end of each nickel-titanium alloy wire. The upper end of each longitudinal rib is slidably disposed in the sliding groove. A bottom rib is slidably fitted at the lower end of each longitudinal rib. A nickel-titanium alloy wire is also fixedly installed between the bottom rib and the lower end of each longitudinal rib.

[0011] In the above-mentioned high-temperature resistant bag filter assembly, multiple ring ribs are fixedly installed between each of the longitudinal ribs, and each ring rib is retractable.

[0012] In the above-mentioned high-temperature resistant bag filter assembly, a fixing ring is fixedly installed on each of the longitudinal ribs, and a floating plate is hinged to each fixing ring. When the filter bag is damaged, the airflow inside the filter bag changes, causing the floating plate to rotate upward. An alarm is installed inside the dust collector, and the alarm is connected to the floating plate by wires. The rotation of the floating plate will activate the alarm.

[0013] In the above-mentioned high-temperature resistant bag filter assembly, the pulse jet cleaning mechanism includes an air storage pipe fixedly installed on the outside of the dust collector. Multiple pulse valves are fixedly connected to the air storage pipe, and each pulse valve is fixedly connected to a fixed pipe. One end of each fixed pipe is connected to a jet pipe.

[0014] In the above-mentioned high-temperature resistant bag filter assembly, the auxiliary installation mechanism includes a push rod two fixedly installed at one end of a push plate, a fixed frame fixedly installed inside the dust collector, a toothed rod slidably installed on the fixed frame, a clamping plate three fixedly installed on the toothed rod, a circular hole three opened on the clamping plate three, and the push rod two slidably installed in the circular hole three, and a stop block fixedly installed at one end of the push rod two, and the diameter of the stop block is larger than the diameter of the circular hole one.

[0015] In the above-mentioned high-temperature resistant bag filter assembly, each of the fixed tubes is rotatably and sealed with a toothed ring, each toothed ring meshes with a toothed rod, each toothed ring is provided with a thread, and each blowpipe is sealed and connected to the fixed tube through the corresponding thread.

[0016] In the above-mentioned high-temperature resistant bag filter assembly, two slide rails are fixedly installed on the tube sheet, and slide rods are slidably installed in both slide rails. Multiple support semi-rings are fixedly installed on one slide rod, and multiple limiting plates are fixedly installed on the other slide rod. Each of the multiple limiting plates has a sliding hole, and each blowpipe is slidably installed in the corresponding sliding hole.

[0017] In the above-mentioned high-temperature resistant bag filter assembly, springs are fixedly installed at both ends of the slide rod on which the limiting plate is installed. One end of one of the springs is fixedly installed with a first clamping plate, which is slidably disposed in the corresponding slide rail. A stop plate is fixedly installed on one side of the first clamping plate, which is slidably disposed on the inner wall of the dust collector. A second clamping plate is fixedly installed on one side of the stop plate. A first push rod is fixedly installed at the other end of the push plate. A plug is fixedly installed at one end of the first push rod, and the plug is used in conjunction with the first clamping plate and the second clamping plate.

[0018] In the above-mentioned high-temperature resistant bag filter assembly, the sum of the length of the push rod and the horizontal distance between the first and second clamping plates is less than the length of the push rod.

[0019] Compared with existing technologies, the advantages of this invention are as follows: the filter element assembly has excellent high-temperature resistance and can automatically adjust the filter bag support spacing according to temperature changes, avoiding friction damage to the filter bags due to thermal expansion and contraction, and extending the service life under high-temperature conditions; at the same time, it can quickly locate the filter bag when it is damaged, reducing the risk of excessive dust; finally, during the unified replacement or maintenance of damaged filter bags, the position of the pulse jet cleaning mechanism can be quickly adjusted, greatly simplifying the filter bag replacement process. The whole invention is adaptable to complex high-temperature conditions, operates stably, and is easy to maintain. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a high-temperature resistant bag filter element assembly proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the dust collector in this invention;

[0022] Figure 3 This is a schematic diagram of the structure of the perforated plate in this invention;

[0023] Figure 4 This is a schematic diagram of the structure of the abutment plate and the limiting plate in this invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged structural diagram of part a;

[0025] Figure 6 For the present invention Figure 4 A structural diagram from another perspective;

[0026] Figure 7 This is a schematic diagram of the filter bag structure in this invention;

[0027] Figure 8 This is a schematic diagram of the longitudinal and circumferential reinforcement in this invention;

[0028] Figure 9 In this invention Figure 8Top view;

[0029] Figure 10 For the present invention Figure 9 Cross-sectional view of the structure along the AA direction;

[0030] Figure 11 For the present invention Figure 10 A magnified schematic diagram of part b in the middle.

[0031] In the diagram: 1. Dust collector; 2. Inspection cover; 3. Air storage pipe; 4. Pulse valve; 5. Hydraulic rod; 6. Push plate; 7. Filter bag; 8. Flange; 9. Backing plate; 10. Pulse jet pipe; 11. Tube plate; 12. Toothed rod; 13. Fixing frame; 14. Plate hole; 15. Limiting plate; 16. Sliding hole; 17. Slide rail; 18. Sliding rod; 19. Spring; 20. Clamping plate one; 21. Clamping plate two; 22. Push rod one; 23. Plug; 24. Toothed ring; 25. Support half ring; 26. Push rod two; 27. Clamping plate three; 28. Longitudinal rib; 29. ​​Bottom rib; 30. Ring rib; 31. Floating plate; 32. Slide groove; 33. Nickel-titanium alloy wire. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 2 as well as Figures 7-11 A high-temperature resistant bag filter cartridge assembly includes a dust collector 1, a maintenance cover 2 on the dust collector 1, a tube sheet 11 fixedly installed inside the dust collector 1, a plurality of plate holes 14 on the tube sheet 11, and a filtration mechanism installed in each plate hole 14. The filtration mechanism separates the dust in the dust-laden airflow, so that the final emitted gas meets environmental protection standards. During the filtration process, the filtration state is adjusted according to temperature changes, and the damaged parts are located at the same time.

[0034] The filtration mechanism includes filter bags 7 that are snapped into the perforations 14 of the plate. The surface layer of filter bags 7 is made of graphene-modified PTFE fiber, utilizing the high-temperature resistance and corrosion resistance of graphene to improve the wear resistance and oxidation resistance of the filter material surface. Simultaneously, the layered structure of graphene can form microchannels, accelerating dust removal. The middle layer is inlaid with basalt fiber, utilizing its excellent high-temperature resistance and chemical erosion resistance to enhance the overall strength of the filter material and alleviate high-temperature shrinkage. The bottom layer uses nano-scale ceramic fibers (such as alumina fibers), which, through the filling effect of nanoparticles, reduce the porosity of the filter material and improve the collection efficiency of ultrafine dust (PM2.5). A ceramic coating containing nanocapsules is coated on the surface of the filter material, with each capsule containing a SiO2 aerogel repair agent. When the filter bag 7 is partially damaged (in a state where the damage is not easily observed and no obvious airflow change occurs), high temperature triggers the capsule to rupture, and the repair agent fills the crack and solidifies, achieving self-repair.

[0035] A metal spring expansion ring is installed at the opening of the filter bag 7. This metal spring expansion ring is typically made of stainless steel, which offers good elasticity and corrosion resistance. Sufficient space is provided at the opening of the filter bag 7 for installing the spring expansion ring. During installation, the spring expansion ring is opened and inserted into the hole 14 of the tube sheet 11. The elastic restoring force of the spring ensures the expansion ring fits tightly against the edge of the hole 14, thus achieving a sealed connection between the filter bag 7 and the tube sheet 11. This also secures the filter bag 7 and prevents it from falling off.

[0036] A flange 8 for sealing and fixing is installed between the filter bag 7 and the tube sheet 11. When installing the filter bag 7, the flange 8 can be tightly connected to the tube sheet 11 of the dust collector 1 through bolts, nuts and other connecting parts to firmly fix the filter bag 7 in the designated position, preventing the filter bag 7 from shaking, shifting or falling off under the impact of the dust-laden airflow, and ensuring that the filter bag 7 can perform filtration work stably. The flange 8 has multiple grooves 32, the end faces of which are elliptical. Each groove 32 has a nickel-titanium alloy wire 33 fixedly installed inside it. One end of each nickel-titanium alloy wire 33 is fixedly installed with a longitudinal rib 28. The upper end of each longitudinal rib 28 is slidably set in the groove 32. The lower end of each longitudinal rib 28 is slidably fitted with a bottom rib 29. The bottom rib 29 and the lower end of each longitudinal rib 28 are also fixedly installed with nickel-titanium alloy wires 33. Multiple ring ribs 30 are fixedly installed between each longitudinal rib 28. Each ring rib 30 is telescopic to adapt to changes in the distance between the multiple longitudinal ribs 28.

[0037] The filter bag 7 shrinks at high temperatures and rebounds relatively at low temperatures. This cycle can easily lead to fatigue damage (accelerated material aging), and the rigid support of the internal longitudinal ribs 28 cannot adapt to this dynamic change. The nickel-titanium alloy wire 33 can shrink at high temperatures and rebound at low temperatures, causing multiple longitudinal ribs 28 to move closer together, changing the support space inside the filter bag 7 (reducing the support space), adapting to the temperature change of the filter bag 7, and preventing the filter bag 7 from shrinking tightly around the longitudinal ribs 28 at high temperatures, which would cause severe friction between them (especially under airflow impact), and the surface of the filter bag 7 would be easily worn through by the ring ribs 30 and the longitudinal ribs 28.

[0038] The upper ends of multiple longitudinal ribs 28 are all fixedly installed with fixing rings, and each fixing ring is hinged with a float plate 31. When the filter bag 7 is damaged, the airflow inside the filter bag 7 changes, causing the float plate 31 to rotate upward. An alarm is installed inside the dust collector 1, and the alarm is connected to the float plate 31 by wires. When the float plate 31 rotates, it will activate the alarm.

[0039] When the filter bag 7 is intact, the dust-laden gas must penetrate the filter bag 7 to enter the bag. The filter bag 7 itself has a certain filtration resistance to the airflow, so the airflow velocity inside the filter bag 7 is relatively slow and the pressure is relatively stable. At this time, the airflow impact force on the float plate 31 is small, and due to gravity and the preset balance, the float plate 31 remains naturally drooping (the force is balanced with the hinge point of the fixed ring). When the filter bag 7 is damaged (such as with a hole or tear), the dust-laden gas does not need to penetrate the filter bag 7 material and can directly and quickly rush into the filter bag 7 from the damaged area. This causes the airflow velocity at the damaged area to be much higher than the velocity during normal filtration, forming an upward impact airflow. The gas rushing into the damaged area causes the local pressure to rise instantaneously (higher than the normal clean air side pressure), generating an upward pressure difference, which pushes the float plate 31 to become unbalanced. Since the float plate 31 is a rotatable structure hinged to the fixed ring (without rigid fixation), when the aforementioned high-speed airflow or pressure difference acts on the lower surface of the float plate 31, it generates an upward thrust, overcoming the float plate 31's own weight (initial equilibrium state) and causing the float plate 31 to rotate upward around the hinge point. The process from airflow change to float plate 31 rotation is almost instantaneous (mechanical action without electronic signal delay), preventing continuous dust leakage from the damaged filter bag 7, reducing deterioration time, and lowering subsequent treatment costs.

[0040] Reference Figures 1-6It also includes a pulse jet cleaning mechanism, which is used to clean the dust adsorbed on the filter bag 7. The pulse jet cleaning mechanism includes an air storage pipe 3 fixedly installed on the outside of the dust collector 1. The function of the air storage pipe 3 is to store high-pressure gas. Multiple pulse valves 4 are fixedly connected to the air storage pipe 3. Each pulse valve 4 is fixedly connected to a fixed pipe. One end of each fixed pipe is connected to a jet pipe 10. Multiple nozzles are provided on the jet pipe 10. Each nozzle is located directly above the plate hole 14. A differential pressure transmitter is installed inside the dust collector 1. The transmitter measures the pressure difference (i.e., "filtration resistance") between the inlet pipe (the pipe through which the gas to be cleaned enters) and the outlet pipe (the pipe through which the cleaned gas is discharged) in real time via two pressure taps. When the resistance reaches a preset upper limit, the differential pressure transmitter transmits a signal to the PLC control system (installed outside the dust collector 1 to control it; this is existing technology and will not be described in detail here), triggering pulse cleaning (activating pulse valve 4 to blow gas through the blowpipe 10, removing dust from the surface of the filter bag 7). When the resistance drops to the lower limit after cleaning, a signal is fed back to the PLC to stop cleaning, preventing excessive cleaning from damaging the filter bag 7 or wasting air.

[0041] It also includes two hydraulic rods 5, both of which are fixedly installed inside the dust collector 1. A push plate 6 is fixedly mounted on the drive end of both hydraulic rods 5. An auxiliary installation mechanism is installed on the push plate 6 for unified installation and disassembly of the pulse jet cleaning mechanism, adjusting its position to facilitate the installation of the filter mechanism. The auxiliary installation mechanism includes a push rod 26 fixedly installed at one end of the push plate 6. A fixing frame 13 is fixedly installed inside the dust collector 1. A toothed rod 12 is slidably installed on the fixing frame 13. A clamping plate 27 is fixedly installed on the toothed rod 12. A circular hole 1 is opened on the clamping plate 27, and the push rod 26 is slidably installed in the circular hole 1. A stop block is fixedly installed at one end of the push rod 26, and the diameter of the stop block is larger than the diameter of the circular hole 1. A toothed ring 24 is rotatably installed on each fixed pipe, and each toothed ring 24 meshes with the toothed rod 12. Each toothed ring 24 has threads, and each jet pipe 10 is sealed and connected to the fixed pipe through corresponding threads. Rotating the gear ring 24 can separate the blow pipe 10 from the corresponding fixed pipe.

[0042] Two slide rails 17 are fixedly installed on the tube sheet 11. Slide rods 18 are slidably installed within each slide rail 17. Multiple supporting semi-rings 25 are fixedly installed on one slide rod 18. The inner diameter of each supporting semi-ring 25 is the same as the outer diameter of the blowpipe 10. When the blowpipe 10 detaches from the toothed ring 24, it falls onto the corresponding supporting semi-ring 25, which supports the blowpipe 10. Multiple limiting plates 15 are fixedly installed on the other slide rod 18. Each limiting plate 15 has a sliding hole 16. A square slider is fixedly installed at one end of each blowpipe 10, and these square sliders are slidably positioned within the corresponding sliding hole 16. When the blowpipe 10 separates from the fixed tube, it slides within the sliding hole 16.

[0043] Both ends of the slide rod 18, which is fitted with the limit plate 15, are fixedly equipped with springs 19. One end of one spring 19 is fixedly equipped with a retaining plate 20, which is slidably disposed within the corresponding slide rail 17. A stop plate 9 is fixedly installed on one side of the retaining plate 20, and the stop plate 9 is slidably disposed on the inner wall of the dust collector 1. Multiple trapezoidal protrusions are regularly arranged on the stop plate 9 (see reference). Figure 4 A second clamping plate 21 is fixedly installed on one side of the abutment plate 9. The second clamping plate 21 has a second round hole, and the first clamping plate 20 has a third round hole. A first push rod 22 is fixedly installed on the other end of the push plate 6. A plug 23 is fixedly installed on one end of the push rod 22, and the plug 23 is used to engage in the second or third round hole. The sum of the length of the push rod 22 and the horizontal distance between the first clamping plate 20 and the second clamping plate 21 (the horizontal distance between the first clamping plate 20 and the second clamping plate 21 along the length direction of the abutment plate 9) is less than the length of the second push rod 26.

[0044] When the filter mechanism needs to be replaced or repaired, first open the inspection cover 2. Then, activate the two hydraulic rods 5 to move the push plate 6 closer to the inside of the dust collector 1. Push rod 22 will drive the plug 23 to engage with the circular hole 3 inside the clamping plate 20. Due to the static friction between the plug 23 and the circular hole 3, the clamping plate 20 moves the abutment 9. At the same time, the spring 19 close to the push plate 6 is compressed (the other spring 19 remains unchanged due to the position restriction of the blowpipe 10). As the movement continues... As the spring 19 is compressed, its elastic potential energy increases. When this potential energy exceeds the frictional force between the stopper 23 and the third hole, the stopper 23 disengages from the first plate 20. The push rod 22 moves the stopper 23 into the second hole on the second plate 21, where it engages again. Simultaneously, the push rod 26 moves synchronously within the first hole of the third plate 27 until the stopper 23 engages with the second plate 21. At this point, the push plate 6 abuts against the third plate 27, and the push plate 6 pushes the toothed rod 12 to slide within the fixed frame 13. The spring 19 is then compressed again. The movement of the rack 12 causes multiple gear rings 24 to rotate simultaneously. At this time, multiple spray pipes 10 are unscrewed (the spring 19 is compressed to its maximum state). As the spray pipes 10 are unscrewed, one end rests on the corresponding support half-ring 25, and the other end slides in the sliding hole 16 in the limiting plate 15, so that the multiple spray pipes 10 are completely separated from the fixed pipe. The sliding rod 18 connected to the spring 19 is then released from its constraint. The compressed spring 19 releases its elastic potential energy at this time and, with the movement of the push plate 6, squeezes another spring 19 (the spring 19 away from the hydraulic rod 5). At this time, due to the elastic force of the spring 19, the stopper 23 moves with the push plate 6 and separates from the round hole 2 on the second stopper plate 21. Through the sliding rod 18 connected to it, multiple blow pipes 10 are misaligned with multiple plate holes 14, so that the blow pipes 10 move from directly above the plate hole 14 to between two adjacent plate holes 14, and multiple blow pipes 10 are moved to the inclined surface of the trapezoidal protrusion on the abutment plate 9. At this time, the control hydraulic rod 5 stops working. The position of the blow pipes 10 provides convenience for the disassembly, installation and inspection of the filter mechanism, saving time.

[0045] After the filter mechanism is installed or inspected, the two hydraulic rods 5 are activated to shorten their drive ends. This causes the pusher plate 6 to move the push rod 22 and the push rod 26 synchronously. As the pusher plate 6 moves, the elastic potential energy of the two springs 19 is released. Under the elastic potential energy of the springs 19 and the cooperation of the stopper 23 and the second stop plate 21, the first stop plate 20, the abutment plate 9, and the multiple limiting plates 15 move towards the pusher plate 6. At this time, the horizontal position of the trapezoidal protrusion on the abutment plate 9 moves to the position of the multiple jet nozzles. At one end of the tube 10, during the movement of the abutment plate 9, multiple blow pipes 10 will be pushed to move closer to the toothed ring 24. When the blow pipe 10 is connected to the corresponding toothed ring 24, the stop block on the push rod 26 contacts the clamping plate 3 27. By pulling the clamping plate 3 27, the toothed rod 12 is moved (at this time, the stopper 23 is completely separated from the clamping plate 1 20 and the clamping plate 21). At this time, multiple toothed rings 24 rotate, connecting multiple blow pipes 10 to the fixed tube again, maintaining the original blowing state.

[0046] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-temperature resistant bag filter assembly, comprising a dust collector (1), characterized in that, The dust collector (1) is provided with an inspection cover plate (2), and a tube sheet (11) is fixedly installed inside the dust collector (1). The tube sheet (11) has multiple holes (14) and each hole (14) is provided with a filter mechanism. The filter mechanism separates the dust in the dust-laden airflow so that the final emitted gas meets environmental protection standards. During the filtration process, the filter state is adjusted according to temperature changes while the damaged parts are located. The pulse jet cleaning mechanism is used to clean the dust adsorbed on the filter mechanism. Two hydraulic rods (5) are fixedly installed inside the dust collector (1), and the drive ends of the two hydraulic rods (5) are jointly fixedly installed with a push plate (6). The auxiliary installation mechanism is installed on the push plate (6) and is used to uniformly install and disassemble the pulse jet mechanism and adjust its position to facilitate the installation of the filter mechanism. The filtration mechanism includes a filter bag (7) that is snapped into the plate hole (14). A flange (8) for sealing and fixing is installed between the filter bag (7) and the tube sheet (11). The flange (8) has multiple grooves (32). A nickel-titanium alloy wire (33) is fixedly installed in each groove (32). A longitudinal rib (28) is fixedly installed at one end of each nickel-titanium alloy wire (33). The upper end of each longitudinal rib (28) is slidably disposed in the groove (32). A bottom rib (29) is slidably sleeved on the lower end of each longitudinal rib (28). A nickel-titanium alloy wire (33) is also fixedly installed between the bottom rib (29) and the lower end of each longitudinal rib (28). The pulse jet mechanism includes an air storage pipe (3) fixedly installed on the outside of the dust collector (1). Multiple pulse valves (4) are fixedly connected to the air storage pipe (3). Each pulse valve (4) is fixedly connected to a fixed pipe, and one end of each fixed pipe is connected to a jet pipe (10). The auxiliary installation mechanism includes a push rod two (26) fixedly installed at one end of the push plate (6), a fixed frame (13) fixedly installed inside the dust collector (1), a toothed rod (12) slidably installed on the fixed frame (13), a clamping plate three (27) fixedly installed on the toothed rod (12), a circular hole one is opened on the clamping plate three (27), and the push rod two (26) is slidably installed in the circular hole one. A stop block is fixedly installed at one end of the push rod two (26), and the diameter of the stop block is larger than the diameter of the circular hole one. Each of the fixed pipes is sealed and rotatably mounted with a toothed ring (24), each toothed ring (24) meshes with a toothed rod (12), each toothed ring (24) is provided with a thread, and each blow pipe (10) is sealed and connected to the fixed pipe through the corresponding thread; Two slide rails (17) are fixedly installed on the flower plate (11). Slide rods (18) are slidably installed in both slide rails (17). Multiple support semi-rings (25) are fixedly installed on one slide rod (18), and multiple limiting plates (15) are fixedly installed on the other slide rod (18). Sliding holes (16) are opened on the multiple limiting plates (15), and each blow pipe (10) is slidably installed in the corresponding sliding hole (16).

2. The high-temperature resistant bag filter element assembly according to claim 1, characterized in that, Multiple ring bars (30) are fixedly installed between each of the longitudinal bars (28), and each ring bar (30) can be extended or retracted.

3. The high-temperature resistant bag filter element assembly according to claim 2, characterized in that, Each of the longitudinal ribs (28) is fixedly installed with a fixing ring, and each fixing ring is hinged with a floating plate (31). When the filter bag (7) is damaged, the airflow inside the filter bag (7) changes and drives the floating plate (31) to rotate upward. An alarm is installed inside the dust collector (1). The alarm is connected to the floating plate (31) by wires. The floating plate (31) rotates to start the alarm.

4. The high-temperature resistant bag filter element assembly according to claim 1, characterized in that, Both ends of the slide rod (18) on which the limiting plate (15) is installed are fixedly provided with springs (19). One end of one of the springs (19) is fixedly installed with a first clamping plate (20), and the first clamping plate (20) is slidably disposed in the corresponding slide rail (17). A stop plate (9) is fixedly installed on one side of the first clamping plate (20), and the stop plate (9) is slidably disposed on the inner wall of the dust collector (1). A second clamping plate (21) is fixedly installed on one side of the stop plate (9). A push rod (22) is fixedly installed on the other end of the push plate (6). A plug (23) is fixedly installed on one end of the push rod (22), and the plug (23) is used in conjunction with the first clamping plate (20) and the second clamping plate (21).

5. The high-temperature resistant bag filter element assembly according to claim 4, characterized in that, The length of push rod 1 (22) and the sum of the horizontal distances between plate 1 (20) and plate 2 (21) are both less than the length of push rod 2 (26).

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