An active pressure equalization, easy-to-clean, high-efficiency dust collector and its cleaning method

Abstract

This invention provides an active, pressure-equalizing, easy-to-clean, high-efficiency dust collector and its cleaning method, mainly comprising a housing, a filter body, a pulse-jet cleaning unit, and a connecting rail. The filter body is divided into a clean air chamber and a dust collection chamber by a horizontal partition within the housing, and airflow is guided through a gas inlet. The pulse-jet cleaning unit, through the cooperation of a pulse controller and a jet pipe, achieves efficient cleaning of the filter body during the cleaning phase. The filter body consists of rigid and flexible pleated filter plates, employing an unfolded filter plate interlocking structure, and is equipped with elastic sealing strips and a perforated sealing structure to ensure a tight seal. This device achieves uniform and efficient cleaning through pulse-jet cleaning and a coordinated cleaning mechanism. Through improved structural design, this invention can significantly improve cleaning efficiency, extend equipment life, and ensure the long-term stable operation of the filtration system.

Description

Technical Field

[0001] This invention relates to the field of dust control technology, specifically to an active pressure equalization, easy-to-clean, high-efficiency dust collector and its cleaning method. Background Technology

[0002] Dust pollution generated in industrial production not only easily leads to pneumoconiosis but can also trigger dangerous situations such as dust explosions, causing huge losses to people's lives and the economy. Plate dust collectors have extremely high collection efficiency for fine particulate matter and a long service life, and are widely used in industrial dust control. Dust cleaning is a critical aspect of plate dust collector operation, directly affecting the filter plate's filtration efficiency, service life, and the system's efficient and stable operation. Existing plate dust collector cleaning methods are often not efficient enough. While common pulse-jet cleaning can remove dust from the filter plate surface to some extent, the uneven distribution of the airflow inside the filter makes it difficult to completely remove dust from some areas, resulting in uneven cleaning. This leads to a rapid increase in filter plate resistance, shortening the filter plate's service life and affecting dust collection efficiency. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an active pressure equalization, easy-to-clean, high-efficiency dust collector and cleaning method, achieving higher filtration efficiency during dust removal, making the pulse pressure distribution inside the filter more uniform during pulse cleaning, solving the problem of uneven pulse cleaning, improving cleaning intensity, making cleaning more thorough, promoting filter plate filtration efficiency, extending service life, and enabling the system to operate efficiently and stably.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An active pressure equalization, easy-to-clean, high-efficiency dust collector includes a housing and a filter body, a pulse-jet cleaning unit, and a connecting rail disposed within the housing;

[0006] The interior of the enclosure is equipped with a horizontal partition, which divides the interior of the enclosure into a clean air chamber and a dust removal chamber; the dust removal chamber is located below the clean air chamber; the horizontal partition is provided with gas inlets connecting the clean air chamber and the dust removal chamber; there are two gas inlets spaced parallel to each other.

[0007] The blowing unit includes an air tank, two pulse controllers, and blowing pipes; the air tank is fixed on the housing; the pulse controllers are installed on the air tank; one end of the blowing pipe is installed on the pulse controller; the two blowing pipes are arranged in parallel and spaced apart; the blowing pipes are located in the clean air chamber and are respectively placed above the two gas inlets.

[0008] There are two filter bodies; the two filter bodies are installed below the corresponding positions of the two gas inlets; the connecting rail is placed between the two filter bodies and connected to the two filter bodies; when one of the blow pipes of the blow unit blows into the interior of one of the filter bodies, the other filter body is driven to move simultaneously through the connecting rail.

[0009] Preferably, the pulse controller includes an electromagnetic pulse valve and an electrical controller; the air inlet of the electromagnetic pulse valve is connected to the air reservoir, and the air outlet is connected to the blowpipe; the electromagnetic pulse valve is electrically connected to the electrical controller.

[0010] Preferably, the filter body includes two rigid pleated filter plates, two flexible pleated filter plates, and an unfolded filter plate embedding structure; the two rigid pleated filter plates are arranged in parallel and spaced apart; the two flexible pleated filter plates are arranged in parallel and spaced apart on both sides of the rigid pleated filter plates; the two ends of the flexible pleated filter plates are respectively fixedly connected to the two rigid pleated filter plates; the lower ends of the rigid pleated filter plates and the flexible pleated filter plates are embedded in the unfolded filter plate embedding structure to form the filter body; an elastic sealing strip is fixedly provided at the upper end of the flexible pleated filter plate; the middle part of the rigid pleated filter plate is hinged to the housing; a connecting rod is fixedly provided at the upper end of the rigid pleated filter plate; the end of the elastic sealing strip is connected to the connecting rod; the connecting rail is placed between the two unfolded filter plate embedding structures; the two ends of the connecting rail are respectively connected to the two unfolded filter plate embedding structures.

[0011] Preferably, two symmetrically arranged perforated plate sealing structures are installed at the top of the filter body; the perforated plate sealing structures are located inside the gas inlet of the transverse partition; the perforated plate sealing structure includes a crossbar, a coil spring, a sealing strip, and a sealing track; the end of the crossbar is fixed to the transverse partition; the coil spring is sleeved on the crossbar, with one end fixedly connected to the crossbar and the other end fixedly connected to the sealing strip; two sealing tracks are configured, symmetrically arranged on both sides of the filter body; the cross-sectional shape of the sealing track is arc-shaped, and the center of the arc coincides with the hinge point where the rigid pleated filter plate is hinged to the housing; the end of the connecting rod is slidably placed inside the sealing track; the side of the sealing strip is slidably placed inside the sealing track, and the end of the sealing strip is fixed to the connecting rod.

[0012] Preferably, the outer side of the elastic sealing strip slides against the side of the gas inlet.

[0013] Preferably, the housing is provided with an air inlet communicating with the dust removal chamber; the air inlet is oriented toward the flexible pleated filter plate.

[0014] Preferably, the interior of the unfoldable filter plate snap-fit ​​structure is provided with multiple flexible springs; the multiple flexible springs are distributed in a parallel array at equal intervals.

[0015] Preferably, nine flexible springs are provided.

[0016] A dust removal method for an active pressure equalization, easy-to-clean, high-efficiency dust collector includes:

[0017] During the pulse jet cleaning stage, when one of the jet units blows air, the uneven distribution of airflow within the filter body results in lower pressure at the top and higher pressure at the bottom. This causes the upper end of the rigid pleated filter plate to tilt inwards. The connecting rod slides along the sealing track, simultaneously pulling the sealing strip into the track to ensure a sealed separation between the clean air chamber and the dust removal chamber during the tilting process. As the rigid pleated filter plate tilts inwards, the unfolded filter plate snap-fit ​​structure and the flexible spring are stretched, transmitting the force through the connecting track to the rigid pleated filter plate of another adjacent filter body, causing the lower end of that rigid pleated filter plate to tilt inwards. As the sealing strip is pulled out, the coil spring and flexible spring stretch and generate a pull-back force, which varies with the inward tilt angle of the rigid pleated filter plate. As the degree increases, the pressure increases; when the combined force of the spring return force and the flexible spring return force exceeds the pressure difference exerted by the blowing unit on the surface of the rigid pleated filter plate, the blowing unit stops blowing, the rigid pleated filter plate stops tilting inward and begins to tilt outward, and the sealing strip rewinds; during the rewinding process, due to inertia, the rigid pleated filter plate tilts beyond its initial position, the spring and the flexible spring become compressed, generating a rebound force, causing the rigid pleated filter plate to tilt inward again; finally, after several back-and-forth tilts, it returns to its original position, and the spring and the flexible spring return to their normal state; during this process, the upper and lower parts of the flexible pleated filter plate repeatedly unfold and retract alternately, shaking off dust and achieving dust removal; at the same time, during the reciprocating tilting process, the rigid pleated filter plate shakes off dust on its surface when the tilting direction changes.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] High-efficiency dust removal: This expandable pressure-equalizing dust removal filter achieves uniform dust removal through pulse jet cleaning combined with the special structure of the filter body. The combination of rigid and flexible pleated filter plates and the synergistic effect of the expandable filter plate interlocking structure significantly improves the airflow distribution inside the filter, optimizes the dust removal process, and ensures highly efficient dust removal.

[0020] Structural Innovation: The design of both rigid and flexible pleated filter plates in the filter body ensures a more uniform dust removal process, avoiding the uneven dust removal problem common in traditional filters. During dust removal, the combination of elastic sealing strips and sealing tapes guarantees the airtightness between the dust removal chamber and the clean air chamber, preventing airflow leakage and improving system stability.

[0021] Collaborative dust removal: Through the design of the connecting rail, when the dust removal action of one filter body begins, the other filter body will perform the dust removal operation simultaneously, which enhances the frequency and effect of dust removal and further improves the dust removal efficiency and reliability of the system.

[0022] Durability: The use of an unfoldable filter plate snap-fit ​​structure and flexible springs ensures the stability of the filter during long-term operation, reduces equipment wear, and extends the service life of the filter. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the filter body in this invention;

[0026] Figure 4 This is a schematic diagram of the unfolded filter plate snap-fit ​​structure in this invention;

[0027] Figure 5 This is a diagram showing the positional relationship between the blowing unit and the filter body in this invention;

[0028] Figure 6 This is a schematic diagram of the initial state of the filter body in this invention;

[0029] Figure 7 for Figure 6 A magnified view of a section at point A in the middle;

[0030] Figure 8 for Figure 6 A magnified view of a section at point B in the middle;

[0031] Figure 9 This is a schematic diagram of the working state of one of the jet pipes in this invention;

[0032] Figure 10 for Figure 9 A magnified view of a section at point C;

[0033] Figure 11 for Figure 9 A magnified view of a section at point D;

[0034] Figure 12 for Figure 9 A magnified view of a section at point E in the middle;

[0035] Figure 13 for Figure 9 A magnified view of a section at point F in the middle;

[0036] Figure 14This is a schematic diagram of the working state of another jet pipe in this invention.

[0037] in:

[0038] 1. Air tank; 2. Pulse controller; 211. Electromagnetic pulse valve; 22. Electrical controller; 3. Blowpipe; 4. Perforated plate sealing structure; 41. Crossbar; 42. Coil spring; 43. Sealing strip; 44. Sealing track; 5. Filter body; 51. Flexible pleated filter plate; 52. Connecting rod; 53. Elastic sealing strip; 54. Rigid pleated filter plate; 6. Unfolding filter plate snap-fit ​​structure; 61. Bendable flexible spring; 7. Connecting rail. Detailed Implementation

[0039] The invention will now be further described with reference to the accompanying drawings.

[0040] like Figure 1 , Figure 2 , Figure 5 As shown, an active pressure equalization, easy-to-clean, high-efficiency dust collector includes a housing and a filter body 5, a pulse-jet cleaning unit, and a connecting rail 7 installed inside the housing.

[0041] The interior of the enclosure is equipped with a horizontal partition, which divides the interior of the enclosure into a clean air chamber and a dust removal chamber; the dust removal chamber is located below the clean air chamber; the horizontal partition is provided with gas inlets connecting the clean air chamber and the dust removal chamber; there are two gas inlets spaced parallel to each other.

[0042] The blowing unit includes an air tank 1, two pulse controllers 2, and blowing pipes 3; the air tank 1 is fixed on the housing; the pulse controllers 2 are installed on the air tank 1; one end of the blowing pipe 3 is installed on the pulse controller 2; the two blowing pipes 3 are arranged in parallel and spaced apart; the blowing pipes 3 are located in the clean air chamber and are respectively placed above the two gas inlets;

[0043] There are two filter bodies 5; the two filter bodies 5 are respectively installed below the corresponding positions of the two gas inlets; the connecting rail 7 is placed between the two filter bodies 5 and connected to the two filter bodies 5; when one of the blow pipes 3 of the blow unit blows into the interior of one of the filter bodies 5, the other filter body 5 is driven to move simultaneously through the connecting rail 7.

[0044] In this embodiment, the pulse controller 2 includes an electromagnetic pulse valve 211 and an electrical controller 22. The inlet of the electromagnetic pulse valve 211 is connected to the air reservoir 1, and the outlet is connected to the blowpipe 3. The electromagnetic pulse valve 211 is electrically connected to the electrical controller 22. The electromagnetic pulse valve 211 and the electrical controller 22 are existing designs. The pulse controller 2 utilizes the electrical controller 22 to input an electrical signal, causing the electromagnetic pilot head to attract the moving column, opening the unloading orifice. The pressurized gas in the rear chamber of the diaphragm is rapidly discharged, and the pressurized gas in the front chamber of the diaphragm lifts the diaphragm, opening the channel of the electromagnetic pulse valve 211 for blowing. When the electrical signal disappears, the spring of the electromagnetic pilot head immediately resets the moving column, closing the unloading orifice. The gas pressure in the rear chamber of the diaphragm and the spring force cause the diaphragm to close the channel, and the valve stops blowing. The electrical controller 22 controls the opening and closing of the electromagnetic pulse valve 211 by controlling the direction of the electrical signal transmission, thereby achieving intermittent blowing from the two blowpipes 3.

[0045] In this embodiment, as Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the filter body 5 includes two rigid pleated filter plates 54, two flexible pleated filter plates 51, and an unfolded filter plate embedding structure 6. The two rigid pleated filter plates 54 are arranged in parallel and spaced apart. The two flexible pleated filter plates 51 are arranged in parallel and spaced apart on both sides of the rigid pleated filter plates 54. The two ends of the flexible pleated filter plates 51 are fixedly connected to the two rigid pleated filter plates 54 respectively. The lower ends of the rigid pleated filter plates 54 and the flexible pleated filter plates 51 are embedded in the unfolded filter plate embedding structure 6 to form the filter body 5. An elastic sealing strip 53 is fixedly installed on the upper end of the flexible pleated filter plate 51. The middle part of the rigid pleated filter plate 54 is hinged to the housing. A connecting rod 52 is fixedly installed on the upper end of the rigid pleated filter plate 54. The end of the elastic sealing strip 53 is connected to the connecting rod 52. A connecting rail 7 is placed between the two unfolded filter plate embedding structures 6. The two ends of the connecting rail 7 are connected to the two unfolded filter plate embedding structures 6 respectively. The maximum tilt angle of the rigid pleated filter plate 54 during the blowing process is 7°.

[0046] In this embodiment, two symmetrically arranged perforated plate sealing structures 4 are installed at the top of the filter body; the perforated plate sealing structure 4 is located inside the gas inlet of the transverse partition; the perforated plate sealing structure 4 includes a crossbar 41, a coil spring 42, a sealing strip 43, and a sealing track 44; the end of the crossbar 41 is fixed to the transverse partition; the coil spring 42 is sleeved on the crossbar 41, with one end fixedly connected to the crossbar 41 and the other end fixedly connected to the sealing strip 43; two sealing tracks 44 are configured, symmetrically arranged on both sides of the filter body 5; the cross-sectional shape of the sealing track 44 is arc-shaped with an arc of 16°, and the center of the arc coincides with the hinge point where the rigid pleated filter plate 54 is hinged to the housing; the end of the connecting rod 52 is slidably placed inside the sealing track 44; the side of the sealing strip 43 is slidably placed inside the sealing track 44, and the end of the sealing strip 43 is fixed to the connecting rod 52.

[0047] like Figures 9 to 14 As shown, in the pulse cleaning process, when the blowpipe 3 blows, the uneven distribution of airflow within the filter body 5 results in lower pressure at the top and higher pressure at the bottom, causing the rigid pleated filter plate 54 to tilt inward. The upper connecting rod 52 moves accordingly, pulling the sealing strip 43, which is wrapped around the coil spring 42, out along the sealing track 44. This compensates for the gap in the tube sheet wall caused by the tilting of the rigid pleated filter plate 54, ensuring the sealed separation between the clean air chamber and the dust removal chamber during the tilting process. As the sealing strip 43 is pulled out, the coil spring 42 is stretched and generates a pull-back force. The pull-back force increases as the inward tilting angle of the rigid pleated filter plate 54 increases. When the combined force of the pull-back force of the coil spring 42 and the pull-back force of the flexible spring 61 is greater than the pressure difference on the surface of the rigid pleated filter plate 54, the rigid pleated filter plate 54 reaches its maximum tilting angle, stops tilting inward, and begins to tilt outward, causing the sealing strip 43 to rewind. During the rewinding process, due to inertia, the rigid pleated filter plate 54 tilts beyond its original position. The coil spring 42 and the flexible spring 61 become compressed, generating a rebound force that causes the rigid pleated filter plate 54 to tilt inward again. After several back-and-forth tilting cycles, it returns to its original position, and the coil spring 42 and flexible spring 61 return to their normal state. During this process, the flexible pleated filter plate 51 unfolds and retracts multiple times, shaking off dust and improving the cleaning effect. Simultaneously, the change in tilt direction of the rigid pleated filter plate 54 during its reciprocating tilting process shakes off dust from its surface, further enhancing the cleaning effect. In summary, the design of the tube sheet sealing structure 4 not only ensures the airtight separation of the dust removal chamber and the clean air chamber during the filter body's shape change, ensuring stable system operation, but also achieves a more thorough cleaning effect through the synergistic effect of vibration dust removal and pulse cleaning, thereby improving filter plate filtration efficiency, service life, and the efficient and stable operation of the system.

[0048] In this embodiment, the outer side of the elastic sealing strip 53 slides against the side of the gas inlet. The elastic sealing strip 53 is a wave-like flexible pleated structure that bends, unfolds, and contracts along with the upper part of the flexible pleated filter plate 51. The width of the elastic sealing strip 53 is greater than the maximum thickness of the flexible pleated filter plate 51 during its unfolding and contraction. This design avoids changes in the thickness of the flexible pleated filter plate 51 during its unfolding and contraction. The expansion, contraction, and bending of the upper end of the flexible pleated filter plate 51 can cause gaps between the clean air chamber and the dust removal chamber, allowing dust to enter the clean air chamber, thus ensuring a sealed separation between the clean air chamber and the dust removal chamber. The unfolded filter plate embedding structure 6 is also a wave-like flexible pleated structure, and the number and distribution of pleats in the pleated wall are consistent with those of the flexible pleated filter plate 51. During pulse jet cleaning, due to uneven pressure on the plate surface, the rigid pleated filter plate 54 tilts, causing the lower part of the flexible pleated filter plate 51 to expand or contract. The expandable filter plate interlocking structure 6 expands or contracts in the same way, and the pleated walls perfectly conform to the changes in the lower pleats of the flexible pleated filter plate 51 during movement, ensuring the sealing of the filter structure and preventing gaps from forming at the bottom during operation that could allow dust to leak into the clean air chamber. The flexible springs 61 are evenly distributed within the expandable filter plate interlocking structure 6. When the expandable filter plate interlocking structure 6 expands, it is stretched, generating a pull force; when the expandable filter plate interlocking structure 6 contracts, it is compressed, generating a rebound force. The magnitude of the pull force and the rebound force increases with the increase of the tilt angle of the rigid pleated filter plate 54. In summary, this dust collector's filter structure has excellent filtration performance, and the dust cleaning process can balance the dust cleaning pressure by changing the filter shape and internal space size, solving the problem of dust cleaning uniformity. Meanwhile, the sealing structure also ensures the airtight separation of the dust removal chamber and the clean air chamber during the filter's shape change process, ensuring the stable operation of the system.

[0049] In this embodiment, the housing is provided with an air inlet communicating with the dust collection chamber; the air inlet is positioned facing the flexible pleated filter plate 51. When the dust collector is running, the dust-laden airflow enters through the air inlet and first contacts the flexible pleated filter plate 51 on the windward side. Some of the dust is trapped, reducing the subsequent filtration load. The remaining dust is trapped as it passes through the rigid pleated filter plate 54 with the airflow. The clean airflow enters the clean air chamber through the inside of the filter and finally flows out from the outlet.

[0050] In this embodiment, as Figure 4 As shown, the interior of the unfolded filter plate snap-fit ​​structure 6 is provided with multiple flexible springs 61; the multiple flexible springs 61 are distributed in a parallel array at equal intervals.

[0051] In this embodiment, nine flexible springs 61 are provided.

[0052] A dust removal method for an active pressure equalization, easy-to-clean, high-efficiency dust collector includes:

[0053] During the pulse jet cleaning stage, when the jet pipe 3 of one of the jet units performs jet cleaning, the uneven distribution of airflow within the filter body 5 results in lower pressure in the upper part and higher pressure in the lower part of the filter body 5. This causes the upper end of the rigid pleated filter plate 54 to tilt inward, and the connecting rod 52 slides along the sealing track 44, simultaneously pulling the sealing strip 43 into the sealing track 44 to ensure a sealed separation between the clean air chamber and the dust removal chamber during the tilting process. The flexible pleated filter plate 51 exhibits a fan-shaped change with the upper half contracting and the lower half expanding, causing the dust in the lower half to fall off, thus improving the cleaning effect. This reduces the space and increases the pressure in the upper part of the filter body 5, while increasing the space and decreasing the pressure in the lower part, making the internal pressure of the filter body 5 more uniform and improving the uniformity of cleaning. As the rigid pleated filter plate 54 tilts inward, the unfolded filter plate snap-fit ​​structure 6 and the flexible spring 61 are stretched, transmitting the force to the rigid pleated filter plate 54 of the adjacent filter body 5 via the connecting rail 7. This causes the lower end of the rigid pleated filter plate 54 to tilt inward, dislodging the dust from the rigid pleated filter plate 54 and the flexible pleated filter plate 51 of the filter body 5. As the sealing strip 43 is pulled out, the coil spring 42 and the flexible spring 61 are stretched and generate a pull-back force. The pull-back force increases as the inward tilt angle of the rigid pleated filter plate 54 increases. When the combined pull-back force of the coil spring 42 and the flexible spring 61 is greater than the force exerted by the jet cleaning unit on the surface of the rigid pleated filter plate 54... When the pressure difference is reached, the blowing unit stops blowing, the rigid pleated filter plate 54 stops tilting inward and begins to tilt outward, and the sealing strip 43 rolls back. During the rollback process, due to inertia, the rigid pleated filter plate 54 tilts beyond its initial position, the coil spring 42 and the flexible spring 61 become compressed, generating a rebound force, causing the rigid pleated filter plate 54 to tilt inward again. Finally, after several back-and-forth tilts, it returns to its original position, and the coil spring 42 and the flexible spring 61 return to their normal state. During this process, the upper and lower parts of the flexible pleated filter plate 51 repeatedly unfold and retract in an alternating cycle, shaking off dust and achieving dust removal. At the same time, when the rigid pleated filter plate 54 tilts back and forth, the dust on the plate surface will be shaken off when the tilting direction changes. The pulse controller 2 controls the two blowpipes 3 to blow alternately, and the two filter bodies 5 to remove dust alternately. When the rigid pleated filter plate 54 of one filter body 5 deflects, it drives the rigid pleated filter plate 54 of the other filter body 5 to deflect through the unfolded filter plate snapping structure 6. The two filter bodies 5 have a synergistic dust removal effect, which increases the frequency of vibration and dust falling, making the dust removal effect more thorough, thereby achieving efficient dust removal and promoting the long-term efficient and stable operation of the system.

Claims

1. An active pressure equalization, easy-to-clean, high-efficiency dust collector, characterized in that, Includes a housing and a filter body (5) installed inside the housing, a blow unit and a connecting rail (7); The interior of the enclosure is equipped with a horizontal partition, which divides the interior of the enclosure into a clean air chamber and a dust removal chamber; the dust removal chamber is located below the clean air chamber; the horizontal partition is provided with gas inlets connecting the clean air chamber and the dust removal chamber; there are two gas inlets spaced parallel to each other. The blowing unit includes an air tank (1), two pulse controllers (2) and a blowing pipe (3); the air tank (1) is fixed on the housing; the pulse controllers (2) are installed on the air tank (1); one end of the blowing pipe (3) is installed on the pulse controllers (2); the two blowing pipes (3) are arranged in parallel and spaced apart; the blowing pipes (3) are located in the clean air chamber and are respectively placed above the two gas inlets; There are two filter bodies (5); the two filter bodies (5) are respectively installed below the corresponding positions of the two gas inlets; the connecting rail (7) is placed between the two filter bodies (5) and connected to the two filter bodies (5); when one of the blow pipes (3) of the blow unit blows into the interior of one of the filter bodies (5), the other filter body (5) is driven to move simultaneously through the connecting rail (7); The filter body (5) includes two rigid pleated filter plates (54), two flexible pleated filter plates (51), and an unfolded filter plate snap-fit ​​structure (6); the two rigid pleated filter plates (54) are arranged in parallel and spaced apart; the two flexible pleated filter plates (51) are arranged in parallel and spaced apart on both sides of the rigid pleated filter plates (54); the two ends of the flexible pleated filter plates (51) are respectively fixedly connected to the two rigid pleated filter plates (54); the lower ends of the rigid pleated filter plates (54) and the flexible pleated filter plates (51) are embedded in the unfolded filter plate snap-fit ​​structure. The filter body (5) is formed on the structure (6); an elastic sealing strip (53) is fixedly installed on the upper end of the flexible pleated filter plate (51); the middle part of the rigid pleated filter plate (54) is hinged on the box body; a connecting rod (52) is fixedly installed on the upper end of the rigid pleated filter plate (54); the end of the elastic sealing strip (53) is connected to the connecting rod (52); the connecting rail (7) is placed between the two unfolded filter plate clamping structures (6); the two ends of the connecting rail (7) are respectively connected to the two unfolded filter plate clamping structures (6); The unfolded filter plate snap-fit ​​structure (6) has multiple flexible springs (61) inside; the multiple flexible springs (61) are distributed in a parallel array with equal intervals.

2. The active pressure equalization, easy-to-clean, high-efficiency dust collector as described in claim 1, characterized in that, The pulse controller (2) includes an electromagnetic pulse valve (211) and an electric controller (22); the air inlet of the electromagnetic pulse valve (211) is connected to the air bag (1), and the air outlet is connected to the blow pipe (3); the electromagnetic pulse valve (211) is electrically connected to the electric controller (22).

3. The active pressure equalization, easy-to-clean, high-efficiency dust collector as described in claim 1, characterized in that, Two symmetrically arranged perforated plate sealing structures (4) are installed at the top of the filter body; the perforated plate sealing structure (4) is located inside the gas inlet of the transverse partition; the perforated plate sealing structure (4) includes a crossbar (41), a coil spring (42), a sealing strip (43), and a sealing track (44); the end of the crossbar (41) is fixed to the transverse partition; the coil spring (42) is sleeved on the crossbar (41), one end is fixedly connected to the crossbar (41), and the other end is fixedly connected to the sealing strip (43); there are two sealing tracks (44), symmetrically arranged on both sides of the filter body (5); the cross-sectional shape of the sealing track (44) is arc-shaped, and the center of the arc coincides with the hinge point where the rigid pleated filter plate (54) is hinged to the box; the end of the connecting rod (52) is slidably placed inside the sealing track (44); the side of the sealing strip (43) is slidably placed inside the sealing track (44), and the end of the sealing strip (43) is fixed to the connecting rod (52).

4. The active pressure equalization, easy-to-clean, high-efficiency dust collector as described in claim 3, characterized in that, The outer side of the elastic sealing strip (53) slides against the side of the gas inlet.

5. The active pressure equalization, easy-to-clean, high-efficiency dust collector as described in claim 3, characterized in that, The housing is provided with an air inlet that communicates with the dust removal chamber; the air inlet is oriented toward the flexible pleated filter plate (51).

6. The active pressure equalization, easy-to-clean, high-efficiency dust collector as described in claim 1, characterized in that, Nine flexible springs (61) are provided.

7. A dust removal method for an active pressure equalization, easy-to-clean, high-efficiency dust collector, characterized in that, include: During the pulse jet cleaning stage, when the jet pipe (3) of one of the jet units performs jet cleaning, the uneven distribution of airflow within the filter body (5) results in lower pressure at the top and higher pressure at the bottom of the filter body (5); causing the upper end of the rigid pleated filter plate (54) to tilt inward, the connecting rod (52) slides along the sealing track (44), and simultaneously pulls the sealing strip (43) into the sealing track (44), ensuring the sealed separation between the clean air chamber and the dust removal chamber during the tilting process; rigid As the pleated filter plate (54) tilts inward, the unfolded filter plate snap-fit ​​structure (6) and the flexible spring (61) are stretched, and the force is transmitted to the rigid pleated filter plate (54) of another adjacent filter body (5) through the connecting rail (7), causing the lower end of the rigid pleated filter plate (54) to tilt inward; as the sealing strip (43) is pulled out, the coil spring (42) and the flexible spring (61) are stretched and generate a pull-back force, which is carried by the rigid pleated filter plate (54). 54) The inward tilt angle increases; when the combined force of the return force of the coil spring (42) and the return force of the flexible spring (61) is greater than the pressure difference of the spray unit acting on the surface of the rigid pleated filter plate (54), the spray unit stops spraying, the rigid pleated filter plate (54) stops tilting inward and begins to tilt outward, and the sealing strip (43) rolls back; during the rollback process, due to inertia, the rigid pleated filter plate (54) tilts beyond the initial position, and the coil spring (42) and the flexible spring... (61) When it becomes compressed, it generates a rebound force, causing the rigid pleated filter plate (54) to tilt inward again. After several back-and-forth tilts, it returns to its original position, and the coil spring (42) and the flexible spring (61) return to their normal state. During this process, the upper and lower parts of the flexible pleated filter plate (51) unfold and retract alternately multiple times, shaking off the dust and achieving dust removal. At the same time, when the rigid pleated filter plate (54) tilts back and forth, the dust on the plate surface will be shaken off when the tilting direction changes.

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