Active pressure-equalizing high-efficiency dust remover capable of easily cleaning dust and dust cleaning method

By adopting the design of an active pressure equalization and easy-to-clean dust collector in the filter plate dust collector, the synergistic effect of cross-divider, blowing unit and connecting rails is used to solve the problem of uneven dust cleaning in the existing technology, achieving more efficient dust removal effect and longer service life.

CN119926074AActive Publication Date: 2025-05-06CHINA UNIV OF MINING & TECH

Patent Information

Application Number
CN202510210088.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2025-05-06
Estimated Expiration
2045-02-25

AI Technical Summary

Technical Problem

The dust removal method of existing filter plate dust collectors is not efficient enough, resulting in a faster increase in the resistance of the filter plate, shortening the service life of the filter plate, and affecting the dust removal efficiency.

Method used

An active pressure equalization and easy-to-clean dust collector is adopted. By setting up a cross-dividing plate, a blowing unit and a connecting rail in the filter, the coordinated cleanup of pulse injection and filter main body is achieved. The dust collector includes a rigid and flexible pleated filter plate, a deployed filter plate clamping structure and a flexible flexible spring. Through the synergy of the pulse pressure of the blowing tube and the connecting rail, a more uniform dust cleaning effect is achieved.

Benefits of technology

It significantly improves dust removal efficiency, extends the service life of the filter plate, and ensures efficient and stable operation of the system. Through uniform dust removal effect and coordinated dust removal action, the overall performance of the filter is improved.

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Abstract

The invention provides an active pressure-equalizing high-efficiency dust remover capable of easily cleaning dust and a dust cleaning method. The active pressure-equalizing high-efficiency dust remover mainly comprises a box body, a filter main body, a blowing unit and a connecting rail, according to the filter, the internal space is divided into an air purification chamber and a dust removal chamber through a transverse partition plate in a box body, and air flow is guided through an air inlet. And the injection unit realizes efficient cleaning of the filter main body in the ash removal stage through cooperation of a pulse controller and an injection pipe. The filter main body consists of a rigid folded filter plate and a flexible folded filter plate, adopts an expanded filter plate clamping and embedding structure, and is provided with an elastic sealing strip and a pattern plate sealing structure to ensure the sealing effect. According to the device, the uniformity and high efficiency of the ash removal effect are realized through pulse injection and a synergistic ash removal mechanism. Through the improved structural design, the dust removal efficiency can be greatly improved, the service life of equipment is prolonged, and long-term stable operation of a filtering system is ensured.
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Description

Technical Field

[0001] The present invention relates to the technical field of dust prevention and control, and in particular to an active pressure-equalizing, easy-to-clean, high-efficiency dust collector and a dust cleaning method. Background Art

[0002] Dust pollution generated in industrial production is not only likely to cause pneumoconiosis, but may also cause dangerous situations such as dust explosions, causing huge losses to people's life safety and economy. Filter plate dust collectors have extremely high capture efficiency for fine particles and long service life, and are widely used in industrial dust prevention and control. Cleaning is a key link in the operation of filter plate dust collectors, which directly affects the filtration efficiency, service life of the filter plate and the efficient and stable operation of the system. The cleaning methods of existing filter plate dust collectors are often not efficient enough. Although the common pulse cleaning method can remove dust on the surface of the filter plate to a certain extent, the uneven distribution of the airflow in the internal space after the jet airflow enters the filter makes it difficult to completely remove dust in some areas, resulting in uneven cleaning of the filter plate, which in turn causes the filter plate resistance to rise rapidly, shortening the service life of the filter plate and affecting the dust removal efficiency. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an active pressure-equalizing, easy-to-clean, high-efficiency dust collector and a cleaning method, so as to achieve higher filtration efficiency in the dust removal process, make the pulse pressure more evenly distributed inside the filter during pulse cleaning, solve the problem of uneven pulse cleaning, improve the cleaning intensity, make cleaning more thorough, promote the filtration efficiency of the filter plate, extend the service life, and enable the system to operate efficiently and stably.

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

[0005] An active pressure-equalizing, easy-to-clean, and efficient dust collector comprises a box body, a filter body arranged in the box body, a spray unit, and a connecting rail;

[0006] A transverse partition is arranged inside the box body, and the transverse partition divides the inside of the box body into a clean air chamber and a dust removal chamber; the dust removal chamber is located below the clean air chamber; a gas inlet connecting the clean air chamber and the dust removal chamber is arranged on the transverse partition; two gas inlets are arranged in parallel at intervals;

[0007] The blowing unit includes an air bag, two pulse controllers and a blowing pipe; the air bag is fixed on the box; the pulse controller is installed on the air bag; 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 respectively 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 blowing pipes of the blowing 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 comprises an electromagnetic pulse valve and an electric controller; the air inlet of the electromagnetic pulse valve is connected to the air bag, and the air outlet is connected to the blowing pipe; the electromagnetic pulse valve is electrically connected to the electric controller.

[0010] Preferably, the filter body comprises two rigid pleated filter plates, two flexible pleated filter plates and an expandable 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 plate; the two ends of the flexible pleated filter plate 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 expandable filter plate embedding structure to form the filter body; an elastic sealing strip is fixedly provided on the upper end of the flexible pleated filter plate; the middle part of the rigid pleated filter plate is hingedly provided on the box body; a connecting rod is fixedly provided on 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 expandable filter plate embedding structures; the two ends of the connecting rail are respectively connected to the two expandable filter plate embedding structures.

[0011] Preferably, two symmetrically arranged flower plate sealing structures are installed on the top of the filter body; the flower plate sealing structure is located in the gas inlet of the diaphragm; the flower plate sealing structure includes a cross bar, a coil spring, a sealing belt, and a sealing track; the end of the cross bar is fixed on the diaphragm; the coil spring is sleeved on the cross bar, one end is fixedly connected to the cross bar, and the other end is fixedly connected to the sealing belt; there are two sealing tracks, which are symmetrically arranged on both sides of the filter body; the cross-sectional shape of the sealing track is an arc, and the center of the arc coincides with the hinge point where the rigid pleated filter plate is hinged on the box body; the end of the connecting rod can be slidably placed in the sealing track; the side of the sealing belt can be slidably placed in the sealing track, and the end of the sealing belt is fixed on the connecting rod.

[0012] Preferably, the outer side surface of the elastic sealing strip is slidably abutted against the side of the gas inlet.

[0013] Preferably, the box body is provided with an air inlet connected to the dust removal chamber; the air inlet is arranged toward the flexible pleated filter plate.

[0014] Preferably, a plurality of bendable flexible springs are arranged inside the expandable filter plate embedding structure; the plurality of bendable flexible springs are distributed in an equally spaced parallel array.

[0015] Preferably, nine bendable flexible springs are provided.

[0016] A dust cleaning method for an active pressure-equalizing, easy-to-clean, and efficient dust collector, comprising:

[0017] During the pulse jet cleaning stage, when the jet pipe of one of the jet units is jetting, the upper part of the filter body is under less pressure and the lower part is under greater pressure due to the uneven distribution of the airflow in the filter body; the upper end of the rigid pleated filter plate is deflected inwardly, and the connecting rod slides along the sealing track, while pulling the sealing belt into the sealing track to ensure the sealed separation between the clean air chamber and the dust removal chamber during the deflection process; while the rigid pleated filter plate is deflected inwardly, the expandable filter plate card-embedded structure and the bendable flexible spring are stretched, and the force is transmitted to the rigid pleated filter plate of another adjacent filter body through the connecting rail, so that the lower end of the rigid pleated filter plate is deflected inwardly; as the sealing belt is pulled out, the coil spring and the bendable flexible spring are stretched and generate a pull-back force, which increases with the inward deflection angle of the rigid pleated filter plate. The spring increases with the increase of the degree; when the combined force of the return force of the coil spring and the return force of the bendable flexible spring is greater than the pressure difference of the blowing unit on the surface of the rigid pleated filter plate, the blowing unit stops blowing, the rigid pleated filter plate stops deflecting inward, and starts to deflect back outward, and the sealing belt rewinds; during the rewinding process, due to inertia, the rigid pleated filter plate deflects beyond the initial position, and the coil spring and the bendable flexible spring become compressed, generating a rebound force, causing the rigid pleated filter plate to deflect inward again; finally, after several back and forth deflections, it returns to the original position, and the coil spring and the bendable flexible spring return to normal; during this process, the upper and lower parts of the flexible pleated filter plate are repeatedly expanded and retracted alternately, and dust is shaken off in the process to achieve dust cleaning; at the same time, during the reciprocating tilting process, the rigid pleated filter plate will shake off the dust on the plate surface when the tilting direction changes.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Efficient dust removal: The expanded pressure-equalizing filter can achieve uniform dust removal through pulse spraying combined with the special structure of the filter body. The coordination of rigid and flexible pleated filter plates and the expanded filter plate embedded structure significantly improves the airflow distribution inside the filter, optimizes the dust removal process, and ensures efficient dust removal.

[0020] Structural innovation: The design of the rigid pleated filter plate and the flexible pleated filter plate of the filter body makes the cleaning process more uniform, avoiding the uneven cleaning problem common in traditional filters. During cleaning, the filter ensures the sealing between the dust removal chamber and the clean air chamber through the cooperation of the elastic sealing strip and the sealing belt, prevents air leakage, and improves the stability of the system.

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

[0022] Durability: The use of expandable filter plate card-embedded structure and bendable flexible spring ensures the stability of the filter during long-term operation, reduces equipment wear and increases the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

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

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

[0026] Figure 4 It is a structural schematic diagram of the expanded filter plate embedded structure in the present invention;

[0027] Figure 5 A diagram showing the positional relationship between the spray unit and the filter body in the present invention;

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

[0029] Figure 7 for Figure 6 A partial enlarged view of the middle A;

[0030] Figure 8 for Figure 6 A partial enlarged view of point B in the middle;

[0031] Fig. 9 A schematic diagram of the working state of one of the blowing pipes in the present invention;

[0032] Fig.10 for Fig. 9 A partial enlarged view of point C in the middle;

[0033] Fig.11 for Fig. 9 A partial enlarged view of point D in the middle;

[0034] Fig.12 for Fig. 9 A partial enlarged view of point E in the middle;

[0035] Fig.13 for Fig. 9 A partial enlarged view of the F in the middle;

[0036] Fig.14This is another schematic diagram of the working state of the blowing tube in the present invention.

[0037] in:

[0038] 1. Air bag; 2. Pulse controller; 211. Electromagnetic pulse valve; 22. Electric controller; 3. Blowing pipe; 4. Flower plate sealing structure; 41. Cross bar; 42. Coil spring; 43. Sealing belt; 44. Sealing track; 5. Filter body; 51. Flexible pleated filter plate; 52. Connecting rod; 53. Elastic sealing strip; 54. Rigid pleated filter plate; 6. Expandable filter plate card embedding structure; 61. Bendable flexible spring; 7. Connecting rail. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] like Figure 1 , Figure 2 , Figure 5 As shown, an active pressure-equalizing, easy-to-clean, and efficient dust collector comprises a housing, a filter body 5 disposed in the housing, a spray unit, and a connecting rail 7;

[0041] A transverse partition is arranged inside the box body, and the transverse partition divides the inside of the box body into a clean air chamber and a dust removal chamber; the dust removal chamber is located below the clean air chamber; a gas inlet connecting the clean air chamber and the dust removal chamber is arranged on the transverse partition; two gas inlets are arranged in parallel at intervals;

[0042] The blowing unit includes an air bag 1, two pulse controllers 2 and a blowing pipe 3; the air bag 1 is fixed on the box; the pulse controller 2 is installed on the air bag 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 pipe 3 is located in the clean air chamber and is 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 blowing pipes 3 of the blowing unit blows into the interior of one of the filter bodies 5, the other filter body 5 is driven to move at the same time through the connecting rail 7.

[0044] In this embodiment, 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 blowing pipe 3; the electromagnetic pulse valve 211 is electrically connected to the electric controller 22. The electromagnetic pulse valve 211 and the electric controller 22 are existing designs. The pulse controller 2 uses the electric controller 22 to input an electrical signal, and the electromagnetic pilot head attracts the moving column, opens the unloading hole, and the pressure gas in the rear chamber of the diaphragm is quickly discharged. The pressure gas in the front chamber of the diaphragm lifts the diaphragm and opens the electromagnetic pulse valve 211 channel for blowing. When the electrical signal disappears, the spring of the electromagnetic pilot head immediately resets the moving column and closes the unloading hole. 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 electric controller 22 controls the opening and closing of the electromagnetic pulse valve 211 by controlling the direction of the electrical signal transmission, thereby realizing the interval blowing of the two blowing pipes 3.

[0045] In this embodiment, if 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 expandable 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 plate 54; the two ends of the flexible pleated filter plate 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 expandable filter plate embedding structure 6 to surround the filter body 5; an elastic sealing strip 53 is fixedly provided on the upper end of the flexible pleated filter plate 51; the middle part of the rigid pleated filter plate 54 is hingedly provided on the box body; a connecting rod 52 is fixedly provided 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 expandable filter plate embedding structures 6; the two ends of the connecting rail 7 are respectively connected to the two expandable filter plate embedding structures 6. The maximum deflection angle of the rigid pleated filter plate 54 during the blowing process is 7°.

[0046] In this embodiment, two symmetrically arranged flower plate sealing structures 4 are installed at the top of the filter body; the flower plate sealing structure 4 is located in the gas inlet of the diaphragm; the flower plate sealing structure 4 includes a cross bar 41, a coil spring 42, a sealing belt 43, and a sealing track 44; the end of the cross bar 41 is fixed on the diaphragm; the coil spring 42 is sleeved on the cross bar 41, one end is fixedly connected to the cross bar 41, and the other end is fixedly connected to the sealing belt 43; there are two sealing tracks 44, which are symmetrically arranged on both sides of the filter body 5; the cross-sectional shape of the sealing track 44 is an arc 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 box body; the end of the connecting rod 52 can be slidably placed in the sealing track 44; the side of the sealing belt 43 can be slidably placed in the sealing track 44, and the end of the sealing belt 43 is fixed on the connecting rod 52.

[0047] like Figures 9 to 14 As shown, in the pulse cleaning link, when the blowing pipe 3 is blowing, the upper part of the filter body 5 is under less pressure and the lower part is under greater pressure due to the uneven distribution of the airflow in the filter body 5, the rigid pleated filter plate 54 deflects inwardly, and the upper end connecting rod 52 moves accordingly, driving the sealing belt 43 attached to the coil spring 42 to be pulled out along the sealing track 44, thereby making up for the vacancy in the flower plate wall generated during the deflection of the rigid pleated filter plate 54, and ensuring the sealed separation between the clean air chamber and the dust removal chamber during the deflection process. As the sealing belt 43 is pulled out, the coil spring 42 stretches and generates a pullback force, which increases as the inward deflection angle of the rigid pleated filter plate 54 increases. When the combined force of the pullback force of the coil spring 42 and the pullback force of the bendable 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 the maximum deflection angle, stops deflecting inwardly, and starts to deflect back outwardly, and the sealing belt 43 rewinds. During the rewinding process, due to inertia, the rigid pleated filter plate 54 deflects beyond the original position, and the coil spring 42 and the bendable flexible spring 61 become compressed, generating a rebound force, causing the rigid pleated filter plate 54 to deflect inward again, and finally return to the original position after several back and forth deflections, and the coil spring 42 and the bendable flexible spring 61 return to a normal state. During this process, the upper and lower parts of the flexible pleated filter plate 51 are expanded and retracted many times, and the dust is shaken off during this process, thereby improving the cleaning effect. At the same time, when the inclination direction of the rigid pleated filter plate 54 changes during the reciprocating tilting process, the dust on the plate surface will be shaken off, thereby improving the cleaning effect. In summary, the design of the flower plate sealing structure 4 not only ensures the airtight separation of the dust removal chamber and the clean air chamber during the change of the shape of the filter body, but also ensures the stable operation of the system. At the same time, the synergistic effect of vibration dust removal and pulse cleaning makes the cleaning effect more thorough, thereby improving the filtering efficiency and service life of the filter plate, 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, which will bend, expand and shrink along with the upper part of the flexible pleated filter plate 51, and the width of the elastic sealing strip 53 is greater than the maximum plate thickness of the flexible pleated filter plate 51 during the expansion and contraction process. This design avoids the change of plate thickness during the expansion and contraction of the flexible pleated filter plate 51. The expansion and bending of the upper end of the flexible pleated filter plate 51 causes a gap between the clean air chamber and the dust removal chamber, allowing dust to enter the clean air chamber, thereby ensuring the sealed separation between the clean air chamber and the dust removal chamber. The expanded filter plate embedded 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 spraying, due to uneven pressure on the plate surface, the rigid pleated filter plate 54 deflects, causing the lower part of the flexible pleated filter plate 51 to expand or contract, and the expanded filter plate embedded structure 6 expands or contracts in the same state, and the pleated wall perfectly fits the changes in the pleated surface of the lower part of the flexible pleated filter plate 51 during movement, ensuring the sealing of the filtration structure and avoiding gaps at the bottom during operation that cause dust to leak into the clean air chamber. The bendable flexible spring 61 structure is evenly distributed in the expanded filter plate embedded structure 6. When the expanded filter plate embedded structure 6 is expanded, it is stretched to generate a pullback force, and when the expanded filter plate embedded structure 6 is contracted, it is compressed to generate a rebound force. The pullback force and the rebound force increase with the increase in the deflection angle of the rigid pleated filter plate 54. In summary, the filtering structure of this dust collector has good filtering performance, and the cleaning link can balance the cleaning pressure by changing the shape of the filter and the size of the internal space, thereby solving the problem of cleaning uniformity. At the same time, the sealing structure also ensures the airtight separation of the dust removal chamber and the clean air chamber during the filter shape change process, ensuring the stable operation of the system.

[0049] In this embodiment, an air inlet connected to the dust removal chamber is provided on the box body; the air inlet is arranged toward the flexible pleated filter plate 51. When the dust collector is in operation, the dust-laden airflow enters from the air inlet, first contacts the flexible pleated filter plate 51 on the windward side, and part of the dust is intercepted, reducing the subsequent filtering load, and the remaining dust is intercepted along with the airflow through the rigid pleated filter plate 54, and 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, if Figure 4 As shown, a plurality of bendable flexible springs 61 are arranged inside the expandable filter plate embedding structure 6; the plurality of bendable flexible springs 61 are distributed in an equally spaced parallel array.

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

[0052] A dust cleaning method for an active pressure-equalizing, easy-to-clean, and efficient dust collector, comprising:

[0053] During the pulse jet cleaning stage, when the jet pipe 3 of one of the jet units is jetting, the airflow is unevenly distributed in the filter body 5, resulting in a small pressure on the upper part and a large pressure on the lower part of the filter body 5; the upper end of the rigid pleated filter plate 54 is deflected inward, and the connecting rod 52 slides along the sealing track 44, while pulling the sealing belt 43 into the sealing track 44 to ensure the sealed separation between the clean air chamber and the dust removal chamber during the deflection process; the flexible pleated filter plate 51 presents a fan-shaped change with the upper part contracting and the lower part expanding, so that the dust in the lower part is shaken off, thereby improving the cleaning effect; the space in the upper part of the filter body 5 is reduced and the pressure is increased, while the space in the lower part is increased and the pressure is reduced, so that the internal space of the filter body 5 is more evenly pressurized, and the cleaning uniformity is improved. While the rigid pleated filter plate 54 is deflected inwardly, the expandable filter plate embedding structure 6 and the bendable 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, so that the lower end of the rigid pleated filter plate 54 is deflected inwardly, and the dust on the rigid pleated filter plate 54 and the flexible pleated filter plate 51 of the filter body 5 is shaken off; as the sealing belt 43 is pulled out, the coil spring 42 and the bendable flexible spring 61 are stretched and generate a pullback force, and the pullback force increases as the inward deflection angle of the rigid pleated filter plate 54 increases; when the combined force of the pullback force of the coil spring 42 and the pullback force of the bendable flexible spring 61 is greater than the action of the blowing unit on the surface of the rigid pleated filter plate 54 When the pressure difference is greater than 0.01, the blowing unit stops blowing, the rigid pleated filter plate 54 stops deflecting inward, and starts to deflect back outward, and the sealing belt 43 rewinds; during the rewinding process, due to inertia, the rigid pleated filter plate 54 deflects beyond the initial position, and the coil spring 42 and the bendable flexible spring 61 become compressed, generating a rebound force, causing the rigid pleated filter plate 54 to deflect inward again; finally, after several back and forth deflections, it returns to the original position, and the coil spring 42 and the bendable flexible spring 61 return to a normal state; during this process, the upper and lower parts of the flexible pleated filter plate 51 are repeatedly expanded and retracted in an alternating cycle, and dust is shaken off in the process to achieve dust cleaning; at the same time, during the reciprocating tilting process, the rigid pleated filter plate 54 will shake off the dust on the plate surface when the tilting direction changes. The pulse controller 2 controls the two blowing pipes 3 to spray alternately, and the two filter bodies 5 remove dust alternately. When the rigid pleated filter plate 54 of one filter body 5 is deflected, the rigid pleated filter plate 54 of the other filter body 5 is driven to deflect through the expandable filter plate embedding structure 6, and a coordinated cleaning effect occurs between the two filter bodies 5, which increases the frequency of vibration dust falling and makes the cleaning effect more thorough, thereby achieving efficient cleaning and promoting long-term, efficient and stable operation of the system.

Claims

1. An active pressure-equalizing, easy-to-clean, and efficient dust collector, characterized in that: It comprises a box body, a filter body (5), a spray unit and a connecting rail (7) arranged in the box body; A transverse partition is arranged inside the box body, and the transverse partition divides the inside of the box body into a clean air chamber and a dust removal chamber; the dust removal chamber is located below the clean air chamber; a gas inlet connecting the clean air chamber and the dust removal chamber is arranged on the transverse partition; two gas inlets are arranged in parallel at intervals; The blowing unit comprises an air bag (1), two pulse controllers (2) and a blowing pipe (3); the air bag (1) is fixed on a box; the pulse controller (2) is mounted on the air bag (1); one end of the blowing pipe (3) is mounted 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; Two filter bodies (5) are provided; the two filter bodies (5) are respectively installed below the corresponding positions of the two gas inlets; a connecting rail (7) is placed between the two filter bodies (5) and connected to the two filter bodies (5); when one of the blowing pipes (3) of the blowing 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).

2. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 1, characterized in that: The pulse controller (2) comprises 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 blowing pipe (3); the electromagnetic pulse valve (211) is electrically connected to the electric controller (22).

3. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 1, characterized in that: The filter body (5) comprises two rigid pleated filter plates (54), two flexible pleated filter plates (51) and an expanded 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 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 expanded filter plate embedding structure. The filter body (5) is surrounded by a structure (6); an elastic sealing strip (53) is fixedly arranged on the upper end of the flexible pleated filter plate (51); the middle part of the rigid pleated filter plate (54) is hingedly arranged on the box body; a connecting rod (52) is fixedly arranged 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 embedding structures (6); and the two ends of the connecting rail (7) are respectively connected to the two unfolded filter plate embedding structures (6).

4. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 3, characterized in that: Two symmetrically arranged flower plate sealing structures (4) are installed at the top of the filter body; the flower plate sealing structure (4) is located in the gas inlet of the diaphragm; the flower plate sealing structure (4) comprises a cross bar (41), a coil spring (42), a sealing belt (43), and a sealing track (44); the end of the cross bar (41) is fixed on the diaphragm; the coil spring (42) is sleeved on the cross bar (41), one end of which is fixedly connected to the cross bar (41) and the other end of which is fixedly connected to the sealing belt (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 an arc, and the arc center coincides with the hinge point where the rigid pleated filter plate (54) is hinged to the box body; the end of the connecting rod (52) can be slidably placed in the sealing track (44); the side edge of the sealing belt (43) can be slidably placed in the sealing track (44), and the end of the sealing belt (43) is fixed to the connecting rod (52).

5. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 3, characterized in that: The outer side surface of the elastic sealing strip (53) is slidably abutted against the side of the gas inlet.

6. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 3, characterized in that: The box body is provided with an air inlet which is in communication with the dust removal chamber; the air inlet is arranged toward the flexible pleated filter plate (51).

7. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 3, characterized in that: A plurality of bendable flexible springs (61) are arranged inside the expanded filter plate embedding structure (6); the plurality of bendable flexible springs (61) are distributed in an array at equal intervals and in parallel.

8. The active pressure-equalizing, easy-to-clean, and efficient dust collector according to claim 7, characterized in that: The number of bendable flexible springs (61) is 9.

9. A method for cleaning an active pressure-equalizing, easy-to-clean, and efficient dust collector, characterized in that: include: During the pulse jet cleaning stage, when the jet pipe (3) of one of the jet units is jetting, the airflow is unevenly distributed in the filter body (5), resulting in a small pressure on the upper part of the filter body (5) and a large pressure on the lower part; the upper end of the rigid pleated filter plate (54) is deflected inward, and the connecting rod (52) slides along the sealing track (44), while pulling the sealing belt (43) into the sealing track (44), thereby ensuring the sealed separation between the clean air chamber and the dust removal chamber during the deflection process; the rigid When the pleated filter plate (54) is deflected inwardly, the expandable filter plate embedding structure (6) and the bendable 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), so that the lower end of the rigid pleated filter plate (54) is deflected inwardly; as the sealing belt (43) is pulled out, the coil spring (42) and the bendable flexible spring (61) are stretched and a pull-back force is generated, and the pull-back force is increased along with the rigid pleated filter plate ( 54) increases as the inward deflection angle increases; when the combined force of the return force of the coil spring (42) and the return force of the bendable flexible spring (61) is greater than the pressure difference of the blowing unit on the plate surface of the rigid pleated filter plate (54), the blowing unit stops blowing, the rigid pleated filter plate (54) stops deflecting inward and starts to deflect outward, and the sealing belt (43) rewinds; during the rewinding process, due to inertia, the rigid pleated filter plate (54) deflects beyond the initial position, and the coil spring (42) and the bendable flexible spring (61) are (61) changes to a compressed state, generating a rebound force, causing the rigid pleated filter plate (54) to deflect inward again; finally, after several back-and-forth deflections, it returns to its original position, and the coil spring (42) and the bendable flexible spring (61) return to a normal state; during this process, the upper and lower parts of the flexible pleated filter plate (51) are repeatedly expanded and retracted in alternating cycles, during which dust is shaken off to achieve dust cleaning; at the same time, during the reciprocating tilting process, the rigid pleated filter plate (54) shakes off dust on the plate surface when the tilting direction changes.

Citation Information

Patent Citations

  • Filter bag dust remover with self-circulating ash removal device

    CN105233582A

  • Clash pulse-jet filter cartridge ash removal system with automatic synergistic change of jet pressure

    CN112892102A

  • Functional composite filter bag and ash removal method thereof

    CN114797307A

  • Bag collector is with spray nozzle device who takes laser calibration function

    CN204735048U

  • Filtration barrel structure

    CN207413023U

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