A bag filter air inlet distribution device for dust collector filter load balancing

Abstract

The application relates to the technical field of cloth bag dust collector air inlet distribution, in particular to a cloth bag dust collector air inlet distribution device for dust collector filtering load balancing, which comprises a main box body, a flow guide box body, an air inlet pipe, an air outlet pipe and a flow uniformizing plate are arranged on the side surface of the main box body, an air inlet and an air outlet are arranged on the side surface of the main box body, a gas supply assembly is arranged on the side surface of the main box body, and a filtering assembly and a distribution assembly are arranged in the main box body. The filtering assembly provided with a movable plate, a trigger rod and a pressing valve realizes real-time sensing and self-adaptive back-blowing dust removal of the blocking state of the filtering module; when the airflow resistance of a column of filtering modules is increased due to dust accumulation, the gas pressure pushes the corresponding movable plate to move upwards, the trigger rod presses the pressing valve on the air supply pipe, high-pressure gas is accurately sprayed to the blocked filter cartridge, local passive dust removal is completed, and the design of the on-demand dust removal avoids energy waste caused by traditional timing dust removal.

Description

Technical Field

[0001] This invention relates to the field of air inlet distribution technology for baghouse dust collectors, and in particular to an air inlet distribution device for baghouse dust collectors used for balancing the filter load of dust collectors. Background Technology

[0002] Baghouse dust collectors, as highly efficient gas-solid separation devices, are widely used in flue gas purification and powder recovery in industries such as power, metallurgy, and chemicals. Their working principle involves using filter bags to filter dust-laden gas. As the gas passes through the filter bags, dust is trapped on the surface of the bags, and the purified gas is discharged from the outlet. However, in actual operation, traditional baghouse dust collectors generally suffer from uneven airflow distribution.

[0003] Firstly, after dust-laden flue gas enters the main housing, the concentrated air inlets and high flow velocity often cause the filter bags near the inlets to bear excessively high filtration loads, while the filter bags farther away from the inlets bear relatively low loads. This localized overload phenomenon not only accelerates the wear and clogging of filter bags in specific areas, shortening their service life, but also increases the overall operating resistance of the system, leading to increased energy consumption. Secondly, uneven airflow easily forms eddies in the dust hopper, causing serious secondary dust problems, which cause the already settled dust to be carried back to the surface of the filter bags by the airflow, further deteriorating the filtration effect. Thirdly, the existing dust collector's back-flushing cleaning system is mostly started at fixed time or pressure, lacking precise response to the actual clogging status of the filter bags. When some filter bags are clogged, targeted cleaning cannot be achieved, and when all filter bags need cleaning, the airflow still passes through the housing, resulting in low cleaning efficiency and slow dust settling. To address these issues, we propose an air inlet distribution device for baghouse dust collectors to balance the filtration load. Summary of the Invention

[0004] In order to overcome the technical problems existing in the prior art, the present invention provides an air inlet distribution device for bag filter dust collectors for balancing the filter load of dust collectors.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a main housing, the side of the main housing is provided with a flow guide housing, an air inlet pipe, an exhaust pipe and a flow equalization plate, the side of the main housing is provided with an air inlet and an exhaust outlet, the side of the main housing is provided with an air supply component, and the interior of the main housing is provided with a filter component and a distribution component. The gas supply assembly includes a gas supply module, a gas supply pipe and a pressing valve are provided on the side of the gas supply module, and a trigger plate and a first electric push rod are provided on the lower side of the pressing valve. The first electric push rod pushes the pressing valve to trigger the release of high-pressure gas. The filter assembly includes a top plate, inside which are arranged a movable plate, a filter module and a support cylinder. A trigger rod is fixedly installed on the upper side of the movable plate corresponding to the position of the press valve. When the filter module is blocked, it causes the movable plate to move upward, and the trigger rod pushes the press valve to release high-pressure gas. The distribution assembly includes a blocking plate, a mating plate and a second electric push rod on the side of the blocking plate. The second electric push rod pushes the blocking plate and the mating plate upward to open the air inlet and the exhaust port. A fixing plate is fixedly installed on the inner side of the main housing. A connecting rod and a movable block are provided inside the fixing plate. A limit block, a pull rod and a pull rope are provided on the side of the connecting rod. The limit block is inserted into the lower side of the movable block to limit the connecting rod and the movable block.

[0006] Furthermore, a cover plate is provided on the upper side of the main housing for sealing, a discharge valve is provided on the lower side of the main housing, a flow guide box is fixedly provided on the side of the main housing, an air inlet pipe and an air outlet pipe are fixedly connected to both sides of the flow guide box, an air inlet and an air outlet are opened on the side of the main housing, and a flow equalizing plate is fixedly installed at equal intervals on the inner side of the main housing.

[0007] Furthermore, the gas supply module is located on the side of the main housing, and the gas supply pipe is fixedly connected to the side of the gas supply module at equal intervals and penetrates the main housing into its interior.

[0008] Furthermore, the pressing valve is fixedly installed on the side of the air supply pipe, the trigger plate is installed inside the main body corresponding to the pressing valve position, the side of the trigger plate is provided with a slot corresponding to the pressing valve position, and the first electric push rod is fixedly connected to the lower side of the trigger plate.

[0009] Furthermore, the top plate is fixedly installed on the inner side of the main housing, and an installation groove is provided on the side of the top plate. A movable cavity is provided on the side of the main housing, and a movable plate is movably disposed inside the movable cavity. The filter module is threadedly installed on the inner side of the movable cavity, and the support cylinder is fixedly connected between the side of the movable plate and the wall of the movable cavity. The trigger rod passes through the top plate and is movably disposed inside the groove.

[0010] Furthermore, the blocking plate is fitted to the side of the main housing and slides through the side of the top plate. The mating plate is fixedly installed on the side of the blocking plate and slides on the other side of the main housing. Protective plates are fixedly connected to both sides of the mating plate. The second electric push rod is fixedly installed on the side of the main housing. The output end of the second electric push rod is snapped with a battery module. A detection block is provided on the side of the battery module and the detection block is threaded onto the output end of the second electric push rod.

[0011] Furthermore, the fixed plate has equidistant mating grooves on its side, the connecting rod is movably disposed inside the mating groove and fixedly installed on the inner side of the blocking plate, the connecting rod is a cylindrical rod with an I-shaped cross section and the upper side of the connecting rod is conical, the movable block is movably sleeved on the side of the connecting rod, the movable block is a circular ring block with a trapezoidal cross section and the conical surface of the movable block is facing upward.

[0012] Furthermore, the wall of the docking groove is provided with a movable groove, and the limiting block is movably disposed inside the movable groove. The limiting block is a trapezoidal block with its conical surface facing downward. A supporting spring is fixedly connected between the side of the limiting block and the wall of the movable groove. A pull rod is fixedly installed on the lower side of the movable plate and extends through the top plate to the side of the fixed plate. A pull rope is fixedly connected to the lower side of the pull rod and extends through the fixed plate to the side of the limiting block.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention, by setting up a filter assembly including a movable plate, a trigger rod, and a pressing valve, achieves real-time sensing and adaptive backflushing cleaning of the filter module blockage status. When the airflow resistance of a certain filter module increases due to dust accumulation, the gas pressure pushes the corresponding movable plate upward, and the trigger rod then presses the pressing valve on the air supply pipe of that column, so that high-pressure gas is accurately sprayed to the blocked filter cartridge, completing local passive cleaning. This on-demand cleaning design avoids the energy waste caused by traditional timed cleaning, improves cleaning efficiency, and the mechanical triggering structure is simple and reliable, requiring no complex electronic sensors and control logic.

[0014] 2. This invention constructs a fully mechanical cumulative triggering mechanism through the ingenious cooperation of connecting rods, movable blocks, limiting blocks, and pull ropes in the distribution component. When all filter modules are blocked and triggering is completed, the limiting blocks are released one by one by the pull ropes, and finally the blocking plate falls automatically under the action of gravity, sealing the air inlet and exhaust port at the same time, realizing the offline isolation of the corresponding main box. This mechanism performs logical calculations on the blocking status of multiple filter cartridges, and only triggers the whole box to go offline when all filter bags need to be cleaned, avoiding the impact of frequent offline operations on dust removal efficiency and ensuring a high level of intelligence and automation.

[0015] 3. After the dust collector is cut off offline, the present invention sends a feedback signal to the controller through the detection block, which actively activates the first electric push rod to push the trigger plate and press all the pressing valves at the same time to achieve forced back-blowing cleaning of the entire chamber. Since there is no airflow inside the chamber at this time, the dust blown off is not affected by the airflow disturbance and can quickly settle to the ash hopper under the action of gravity and be discharged smoothly through the discharge valve. This significantly improves the cleaning effect and dust recovery efficiency, and provides a reliable guarantee for the continuous and stable operation of the dust collector.

[0016] 4. This invention, by installing uniform flow plates at equal intervals and at an inclined angle at the air inlet of the main housing, and combining this with the reasonable layout of the air inlet and outlet in the guide box, allows the dust-laden airflow to diffuse evenly after entering the main housing. This effectively avoids local scouring of the filter bags by the airflow, significantly improves the balance of the filtration load among the filter bags, reduces the system operating resistance, extends the overall service life of the filter bags, and reduces the eddy current phenomenon in the ash hopper, fundamentally suppressing the occurrence of secondary dust and ensuring the long-term stable and efficient operation of the dust collector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the flow guide box of the present invention; Figure 5 This is a partial structural schematic diagram of the gas supply component of the present invention; Figure 6 This is a schematic diagram of the peripheral structure of the gas supply pipe of the present invention; Figure 7 For the present invention Figure 3 A magnified structural diagram at point A; Figure 8 This is a partial cross-sectional structural diagram of the filter assembly of the present invention; Figure 9 For the present invention Figure 3 A magnified structural diagram at point B; Figure 10 This is a partial structural schematic diagram of the component allocation in this invention; Figure 11 This is a schematic diagram of the peripheral cross-sectional structure of the fixing plate of the present invention; Figure 12 For the present invention Figure 3 A magnified structural diagram at point C.

[0018] The components include: 1. Main housing; 11. Cover plate; 12. Discharge valve; 13. Flow guide housing; 14. Air inlet pipe; 15. Exhaust pipe; 16. Air inlet; 17. Exhaust outlet; 18. Flow equalization plate; 2. Air supply assembly; 21. Air supply module; 22. Air supply pipe; 23. Press valve; 24. Trigger plate; 25. Slot; 26. First electric push rod; 3. Filter assembly; 31. Top plate; 32. Mounting slot; 33. Movable chamber; 331 34. Movable plate; 35. Filter module; 36. Support cylinder; 47. Trigger rod; 48. Distribution component; 49. Blocking plate; 40. Mating plate; 41. Protective plate; 42. Second electric push rod; 43. Battery module; 44. Detection block; 45. Fixing plate; 46. Docking groove; 47. Connecting rod; 48. Movable block; 49. Movable groove; 40. Limiting block; 41. Support spring; 42. Pull rod; 43. Pull rope. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0020] Example: Figures 1 to 5As shown, a bag filter inlet air distribution device for balancing the filter load of a dust collector includes multiple main housings 1, which are arranged side by side and supported by brackets. A cover plate 11 is provided on the upper side of each main housing 1 for sealing, and a discharge valve 12 is provided on the lower side of each main housing 1. A guide box 13 is fixedly installed on the side of each main housing 1. The guide box 13 is a box with one side open, and a partition is provided on its inner side. The guide box 13 is located on the lower side of one side. An air inlet pipe 14 is fixedly connected to the main body 1. An exhaust pipe 15 is fixedly connected to the main body 1 at an upper position on the other side. An air inlet 16 is opened at a lower position on the side of the main body 1, and an exhaust outlet 17 is opened at an upper position on the side of the main body 1. The air inlet 16 and the exhaust outlet 17 are covered by the air inlet 16. A flow equalizer 18 is fixedly installed at an angle at equal intervals on the inner side of the main body 1, corresponding to the position of the air inlet 16. An air supply component 2 is provided on the side, and a filter component 3 and a distribution component 4 are provided inside the main housing 1. Specifically, external gas is delivered to the guide box 13 through the air inlet pipe 14, and then the gas enters the main housing 1 through the air inlet 16. The airflow is evenly distributed by the flow equalizer 18, and then the gas is filtered and dust removed by the filter component 3. After filtration, the gas passes through the exhaust port 17 into the guide box 13 and is discharged from the exhaust pipe 15. When the filter component 3 removes dust, it can trigger the air supply component 2 to perform a single-group back-flushing dust removal operation. When all the filter components 3 are triggered to perform back-flushing dust removal, the distribution component 4 can block the corresponding air inlet 16 and exhaust port 17 of the main housing 1, and the air supply component 2 performs an active back-flushing dust removal operation, so that there is no gas flow inside the corresponding main housing 1. At this time, there is no airflow disturbance inside the main housing 1, and the dust settling effect is better. The dust accumulated on the lower side of the main housing 1 can be discharged through the discharge valve 12.

[0021] like Figure 3 and Figures 5 to 7As shown, the gas supply assembly 2 includes a gas supply module 21, which is located on the side of the main housing 1 and is supported by a bracket. Gas supply pipes 22 are fixedly connected at equal intervals to the side of the gas supply module 21, penetrating the main housing 1 and extending into it. The gas supply pipes 22 are hollow circular pipes with exhaust nozzles on the side. A press valve 23 is fixedly installed on the side of the gas supply pipe 22. The press valve 23 is a common press-type release valve in the prior art. Inside the main housing 1, a trigger plate 24 is located corresponding to the position of the press valve 23. A corresponding button is located on the side of the trigger plate 24. The pressure valve 23 has slots 25 that pass through it at equal intervals. The slots 25 are circular holes. A first electric push rod 26 is fixedly connected to the lower side of the trigger plate 24. Specifically, the air supply module 21 supplies high-pressure air to the air supply pipe 22, and the pressure valve 23 cuts off and blocks the air supply pipe 22. Thus, the first electric push rod 26 pushes the trigger plate 24 to press the pressure valve 23. When the pressure valve 23 is pressed, it opens and releases the high-pressure gas from the air supply module 21. The high-pressure gas is discharged from the nozzle on the side of the air supply pipe 22 to perform backflushing dust removal.

[0022] like Figure 3 , Figure 5 , Figures 7 to 9 As shown, the filter assembly 3 includes a top plate 31, which is fixedly installed inside the main housing 1. The top plate 31 is a rectangular plate, and mounting grooves 32 are equidistantly provided on the side of the top plate 31. The mounting grooves 32 are circular grooves. Movable cavities 33 are equidistantly provided on the side of the main housing 1 corresponding to the mounting grooves 32. The movable cavities 33 are circular cavities with a continuous cross-shaped cross section. A movable plate 331 is movably installed inside the movable cavity 33. The movable plate 331 is a circular annular plate with a continuous cross-shaped cross section. A filter module 34 is threadedly installed inside the movable cavity 33 and is movably positioned inside the mounting grooves 32. The filter module 34 is a combination of a filter bag cage frame and a flat bag, which is installed by fitting the flat bag onto the side of the filter bag cage frame. Movable cavities 34 are located on the side of the movable plate 331 and the movable plate 331. A support cylinder 35 is fixedly connected between the walls of cavity 33. The support cylinder 35 is a corrugated round tube made of elastic material. A trigger rod 36 is fixedly installed on the upper side of the movable plate 331 corresponding to the position of the press valve 23. The trigger rod 36 passes through the top plate 31 and is movably set inside the slot 25. Specifically, when the filter module 34 filters and removes dust from the gas, after dust accumulates on the side of the filter module 34, the gas can push the movable plate 331 in the corresponding row to slide upward inside the movable cavity 33. The movable plate 331 squeezes and deforms the support cylinder 35. At the same time, the movable plate 331 can drive the trigger rod 36 to move upward. The trigger rod 36 slides out through the slot 25 and squeezes to the side of the press valve 23, so that the corresponding row of air supply pipes 22 passively releases high-pressure gas for backflushing dust removal.

[0023] like Figure 3 , Figure 5 , Figures 9 to 12 As shown, the distribution component 4 includes a blocking plate 41, which is fitted onto the side of the main housing 1 corresponding to the air inlet 16 and the exhaust outlet 17, and is slidably mounted on the side of the top plate 31. The blocking plate 41 consists of two sets of rectangular plates and rectangular rods. A mating plate 42 is fixedly installed on the side of the blocking plate 41 and is slidably installed on the other side of the main housing 1. The mating plate 42 is a "C"-shaped plate. Protective plates 421 are fixedly connected to both sides of the mating plate 42, and the other end of the protective plates 421 is fixedly connected to the inside of the main housing 1. The protective plates 421 are continuous "W"-shaped plates. A second electric push rod 43 is fixedly installed on the side of the main housing 1 corresponding to the position of the mating plate 42. A battery module 43 is snapped into the output end of the second electric push rod 43. 1. A detection block 432 is provided on the side of the battery module 431 and the detection block 432 is threadedly installed on the output end of the second electric push rod 43. The battery module 431 and the detection block 432 are connected by contact. The battery module 431 is a photoelectric sensor (any sensor model that can obtain a signal through contact is acceptable). Specifically, the second electric push rod 43 pushes the mating plate 42, which in turn drives the blocking plate 41 to slide upward inside the main housing 1, so that the blocking plate 41 is staggered with the air inlet 16 and the exhaust port 17. At this time, the air inlet 16 and the exhaust port 17 are open. Then the second electric push rod 43 is pulled back to reset. At this time, the blocking plate 41 can slide downward under its own weight, and the mating plate 42 can block the air inlet 16 and the exhaust port 17. A fixing plate 44 is fixedly installed on the inner side of the main housing 1, corresponding to the position of the blocking plate 41. The fixing plate 44 is a rectangular plate. Equally spaced mating grooves 45 are provided on the side of the fixing plate 44, corresponding to the position of the movable plate 331. The mating grooves 45 are cylindrical grooves. A connecting rod 451 is movably arranged inside the mating grooves 45 and is fixedly installed on the inner side of the blocking plate 41. The connecting rod 451 is an I-shaped cylindrical rod with a tapered upper side. A movable block 452 is fitted onto the mating groove 45. The movable block 452 is a trapezoidal annular block with its conical surface facing upwards. A movable groove 46 is formed on the wall of the mating groove 45. The movable groove 46 is a rectangular groove. A limit block 461 is movably installed inside the movable groove 46. The limit block 461 is a trapezoidal block with its conical surface facing downwards. A support spring 462 is fixedly connected between the side of the limit block 461 and the wall of the movable groove 46. A pull rod 47 is fixedly installed on the lower side of the movable plate 331 and penetrates the top plate. 31 extends to the side of the fixed plate 44. The pull rod 47 is a cylindrical rod. A pull rope 48 is fixedly connected to the lower side of the pull rod 47 and passes through the fixed plate 44 to be fixedly connected to the side of the limiting block 461. The pull rope 48 is a steel wire rope. Specifically, when the second electric push rod 43 pushes the blocking plate 41 to move upward, the blocking plate 41 drives the connecting rod 451 to insert into the docking groove 45. First, the connecting rod 451 pushes the limiting block 461 to slide into the movable groove 46. Then, the limiting block 461 is squeezed by the movable block 452. After sliding and fitting the connecting rod 451 to the side, the second electric push rod 43 pushes the mating plate 42 into place and then performs a self-reset operation. At this time, the blocking plate 41 falls slightly downward, and the limiting block 461 is pushed into the lower position of the movable block 452 by the support spring 462. The movable groove 46 can then limit the lower side of the movable block 452, and the blocking plate 41 can be supported by the limit. When the second electric push rod 43 pushes the mating plate 42, the detection block 432 can receive a signal and feed it back to the external controller.Additionally, dust accumulates on the side of the filter module 34 on the side of the corresponding movable plate 331. The filter module 34 can then be pushed upwards by the gas, causing the movable plate 331 to move upwards. When the movable plate 331 moves upwards, it can trigger the press valve 23 via the trigger rod 36, and also pull the pull rope 48 via the pull rod 47. This causes the pull rope 48 to pull the limit block 461 into the movable groove 46. At this time, the corresponding movable block 452 loses its limit and slides down the connecting rod 451. However, since the movable blocks 452 of other groups are still blocked by their respective limit blocks 461, the connecting rod 451 remains locked, and the blocking plate 41 remains stationary. Later, when all the limit blocks 461 of all groups are triggered by the pull rope 48, the movable blocks 452 are no longer limited by the limit blocks 461, and the blocking plate 41 remains stationary. Plate 41 falls downwards, guided by connecting rod 451, squeezing and limiting block 461 into movable groove 46. Plate 41 then completes its downward reset, sealing the air inlet 16 and exhaust outlet 17. After resetting, plate 41, along with plate 42, contacts the upper side of the output end of second electric push rod 43, where it is limited. At this time, detection block 432 receives a signal feedback, and the controller detects that the gas inside the corresponding main housing 1 is being blocked. The controller then controls first electric push rod 26 to push trigger plate 24 to actively release pressure valve 23. Air supply pipe 22 then discharges the high-pressure gas supplied by air supply module 21 to backflush the filter module 34 for dust removal. With the gas inside the main housing 1 still, dust can quickly settle to the bottom of the main housing 1 and be discharged through discharge valve 12.

[0024] Working principle: During normal dust removal: First, a full airflow connection dust removal operation is performed. All second electric push rods 43 on the sides of the main housing 1 push the mating plate 42 upwards. Simultaneously, the detection block 432 contacts the mating plate 42, receiving a signal feedback to the controller, indicating airflow connection. The mating plate 42 then moves the blocking plate 41 upwards, allowing the blocking plate 41 to insert the connecting rod 451 into the docking groove 45. First, the connecting rod 451 presses against the limiting block 461, sliding into the movable groove 46. At this time, the movable block 452 slides to the lower position of the connecting rod 451, and the limiting block... Guided and squeezed by the movable block 452, 461 is pressed to the side of the connecting rod 451. Then, the second electric push rod 43 pushes the mating plate 42 into place and resets it. The blocking plate 41 moves slightly downward. At this time, under the elastic support of the support spring 462, the limiting block 461 is inserted into the lower limit of the movable block 452, so that the movable block 452 slides to the upper position of the connecting rod 451. The limiting block 461 can limit the movable block 452 and the connecting rod 451, and the blocking plate 41 can keep the limit so that the air inlet 16 and the exhaust port 17 are connected. The second step is the normal airflow filtration operation. External gas flows into the guide box 13 through the air inlet pipe 14. The gas is discharged into the main box 1 through the air inlet 16. The gas is evenly distributed by the flow equalization plate 18. After the gas passes through the filter module 34, the dust removal operation can be performed. The dust-removed gas flows into the upper side of the main box 1 from the mounting groove 32. After passing through the exhaust port 17, it can be discharged from the exhaust pipe 15. When there is a small blockage: First, adaptive filtration and passive dust removal. When the gas is filtered by the filter module 34, the dust accumulates on the side of the filter module 34. Then, the filter module 34 on the side of the corresponding row of movable plates 331 is blocked by dust. The gas can push the corresponding movable plate 331 to move upward. The movable plate 331 squeezes and deforms the support cylinder 35. At this time, the movable plate 331 drives the trigger rod 36 to move upward. The trigger rod 36 slides out from the slot 25 and squeezes the side of the press valve 23. The corresponding press valve 23 can release the high-pressure gas supplied by the gas supply pipe 22. The high-pressure gas is blown into the corresponding mounting slot 32, which can back-flushing the filter module 34 to remove dust. The second step is to release the individual limit. When the movable plate 331 moves upward, it can drive the pull rod 47 to move upward. At this time, the pull rod 47 pulls the pull rope 48 to pull the limit block 461 into the movable groove 46. At this time, the corresponding movable block 452 is no longer restricted by the limit block 461. The movable block 452 slides down the connecting rod 451 to its lower position. Since the other movable blocks 452 are limited by the limit block 461, the blocking plate 41 can continue to remain in the limited position. In case of large-scale blockage: First, the flow is completely blocked by limiting the flow. After long-term use, the filter modules 34 on the sides of each set of movable plates 331 are blocked by dust. All movable plates 331 are pushed upward. At this time, the corresponding pull rods 47 pull the limiting block 461 into the movable groove 46 through the pull rope 48. The movable block 452 falls to the lower position on the side of the connecting rod 451. At this time, the blocking plate 41 slides down and resets under its own weight. The connecting rod 451 squeezes the limiting block 461 to make it slide into the movable groove 46. The connecting rod 451 can then slide out of the docking groove 45. After the blocking plate 41 falls, it blocks the air inlet 16 and the exhaust port 17, thus completing the internal airflow interception of the corresponding main box 1. The second step is the active back-blowing dust removal operation. After the blockage plate 41 falls and resets, the cooperating plate 42 contacts the upper position of the output end of the second electric push rod 43 and is limited by it. After the detection block 432 receives the signal, the controller determines to cut off the flow. At this time, the first electric push rod 26 pushes the trigger plate 24 upward to press the side of the press valve 23, so that all the air supply pipes 22 inside the corresponding single main box 1 release high-pressure gas for back-blowing dust removal. The coordinated operation of the above components allows the dust collector to operate at full power during normal operation. When in use, the individual filter module 34 can perform adaptive passive dust removal. In addition, after all filter modules 34 become blocked, a single main housing 1 can be triggered to cut off the flow, while simultaneously performing active backflushing dust removal. After the flow is cut off, the dust inside the main housing 1 can also be quickly deposited.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A bag filter air distribution device for balancing the filter load of a dust collector, comprising a main housing (1), a guide box (13), an air inlet pipe (14), an exhaust pipe (15) and a flow equalization plate (18) provided on the side of the main housing (1), an air inlet (16) and an exhaust outlet (17) provided on the side of the main housing (1), an air supply component (2) provided on the side of the main housing (1), and a filter component (3) and a distribution component (4) provided inside the main housing (1); Its features are: The gas supply assembly (2) includes a gas supply module (21). A gas supply pipe (22) and a press valve (23) are provided on the side of the gas supply module (21). A trigger plate (24) and a first electric push rod (26) are provided on the lower side of the press valve (23). The first electric push rod (26) pushes the press valve (23) to trigger the release of high-pressure gas. The filter assembly (3) includes a top plate (31), inside which are arranged a movable plate (331), a filter module (34) and a support cylinder (35). A trigger rod (36) is fixedly installed on the upper side of the movable plate (331) corresponding to the position of the press valve (23). When the filter module (34) is blocked, it causes the movable plate (331) to move upward, and the trigger rod (36) pushes the press valve (23) to trigger the release of high-pressure gas. The distribution assembly (4) includes a blocking plate (41), a mating plate (42) and a second electric push rod (43) are provided on the side of the blocking plate (41), and the second electric push rod (43) pushes the blocking plate (41) and the mating plate (42) to open the air inlet (16) and the exhaust port (17) upward. A fixing plate (44) is fixedly installed on the inner side of the main housing (1), and a connecting rod (451) and a movable block (452) are provided inside the fixing plate (44). A limit block (461), a pull rod (47) and a pull rope (48) are provided on the side of the connecting rod (451). The limit block (461) is inserted into the lower side of the movable block (452) to limit the connecting rod (451) and the movable block (452).

2. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 1, characterized in that: The upper side of the main box (1) is provided with a cover plate (11) for sealing, the lower side of the main box (1) is provided with a discharge valve (12), the guide box (13) is fixedly installed on the side of the main box (1), the air inlet pipe (14) and the exhaust pipe (15) are fixedly connected to the two sides of the guide box (13), the air inlet (16) and the exhaust outlet (17) are opened on the side of the main box (1), and the flow equalizing plate (18) is fixedly installed at equal intervals on the inner side of the main box (1).

3. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 2, characterized in that: The gas supply module (21) is located on the side of the main housing (1), and the gas supply pipe (22) is fixedly connected to the side of the gas supply module (21) at equal intervals and the gas supply pipe (22) passes through the main housing (1) to its interior.

4. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 3, characterized in that: The press valve (23) is fixedly installed on the side of the air supply pipe (22), and the trigger plate (24) is installed inside the main body (1) corresponding to the press valve (23). The side of the trigger plate (24) is provided with a slot (25) corresponding to the press valve (23), and the first electric push rod (26) is fixedly connected to the lower side of the trigger plate (24).

5. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 4, characterized in that: The top plate (31) is fixedly installed on the inner side of the main box (1). The side of the top plate (31) is provided with an installation groove (32). The side of the main box (1) is provided with an active cavity (33). The active plate (331) is movably disposed inside the active cavity (33). The filter module (34) is threadedly installed on the inner side of the active cavity (33). The support cylinder (35) is fixedly connected between the side of the active plate (331) and the wall of the active cavity (33). The trigger rod (36) passes through the top plate (31) and is movably disposed inside the slot (25).

6. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 5, characterized in that: The blocking plate (41) is fitted to the side of the main housing (1) and the blocking plate (41) slides through the side of the top plate (31). The mating plate (42) is fixedly installed on the side of the blocking plate (41) and the mating plate (42) slides on the other side of the main housing (1). The two sides of the mating plate (42) are fixedly connected to the protective plate (421). The second electric push rod (43) is fixedly installed on the side of the main housing (1). The output end of the second electric push rod (43) is snapped with the battery module (431). The side of the battery module (431) is provided with a detection block (432) and the detection block (432) is threadedly installed on the output end of the second electric push rod (43).

7. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 6, characterized in that: The fixed plate (44) has equidistant docking grooves (45) on its side. The connecting rod (451) is movably disposed inside the docking groove (45) and is fixedly installed on the inner side of the blocking plate (41). The connecting rod (451) is a cylindrical rod with an I-shaped cross section and the upper side of the connecting rod (451) is conical. The movable block (452) is movably sleeved on the side of the connecting rod (451). The movable block (452) is a circular block with a trapezoidal cross section and the conical surface of the movable block (452) faces upward.

8. The bag filter inlet air distribution device for balancing the filter load of a dust collector according to claim 7, characterized in that: The wall of the docking groove (45) is provided with a movable groove (46). The limiting block (461) is movably disposed inside the movable groove (46). The limiting block (461) is a trapezoidal block with its conical surface facing downward. A support spring (462) is fixedly connected between the side of the limiting block (461) and the wall of the movable groove (46). The pull rod (47) is fixedly installed on the lower side of the movable plate (331) and extends through the top plate (31) to the side of the fixed plate (44). The pull rope (48) is fixedly connected to the lower side of the pull rod (47) and extends through the fixed plate (44) to the side of the limiting block (461).

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