A dust cleaning structure of a bag-type dust collector and a bag-type dust collector

Abstract

The utility model relates to a kind of dust cleaning structure of cloth bag dust collector, install on cloth bag dust collector, cloth bag dust collector includes machine case, partition is fixedly arranged in machine case, partition divides machine case into air inlet cavity and air outlet cavity, and opening through-hole, partition detachably set filter cartridge, filter cartridge is communicated with through-hole, including pulse main body and connecting pipe;With time goes on, a large amount of dust is attached to the surface of cylindrical filter bag, drive pulse main body to start work, pulse airflow is ejected from multiple telescopic pipes through connecting pipe and mounting pipe, multiple pulse airflows in filter cartridge hit on the cloth bag of filter cartridge, more effective dust cleaning is realized under lower pressure.In addition, the design of telescopic pipe can be reasonably adjusted according to the size, shape of filter cartridge and the arrangement of filter bag.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, specifically to a dust removal structure for a bag filter and the bag filter itself. Background Technology

[0002] In the process of filtering dust-laden gas, the cylindrical filter bags of baghouse dust collectors accumulate a large amount of dust on their surface over time. If not cleaned in a timely manner, this can lead to clogging of the filter bags, increasing airflow resistance and reducing dust removal efficiency. A well-designed cleaning structure can periodically and effectively remove dust from the filter bag surface, maintaining good air permeability. For example, Chinese Utility Model Patent CN221287178U discloses a cleaning structure for a baghouse dust collector. In existing baghouse dust collectors, the cleaning pipe is inserted inside the filter bag, and the pipe has only one outlet. Because the airflow is concentrated and ejected from a single outlet, the cleaning effect is poor. Utility Model Content

[0003] The main purpose of this utility model is to provide a dust removal structure for a bag filter, so as to solve the problem that the existing dust removal structure of the bag filter has only one air outlet in the blowpipe, and the airflow is concentrated and sprayed out from one hole, resulting in poor dust removal effect.

[0004] To achieve the above objectives, this utility model provides a dust removal structure for a bag filter, which is installed on the bag filter. The bag filter includes a housing, and a partition plate is fixedly installed inside the housing. The partition plate divides the housing into an inlet chamber and an outlet chamber, and has through holes. A filter cartridge is detachably installed on the partition plate. The filter cartridge communicates with the through holes and is located inside the inlet chamber. The structure includes a pulse body and a connecting pipe.

[0005] One end of the connecting pipe is connected to the pulse body, and the other end passes through the air outlet chamber to connect to the docking installation pipe;

[0006] The mounting tube is inserted into the filter cartridge through the through hole, and its axis coincides with the axis of the filter cartridge.

[0007] Multiple spray elements are arranged along the axial direction of the mounting pipe. Each spray element includes multiple telescopic tubes, which are circumferentially connected and arranged on the mounting pipe and located inside the filter cartridge.

[0008] Preferably, the air outlets of the multiple telescopic tubes face the filter cartridge's cloth bag.

[0009] Preferably, the partition plate has multiple through holes arranged in a matrix, and a filter cartridge is installed at each through hole;

[0010] There are multiple mounting tubes, and each mounting tube corresponds to a through hole.

[0011] Preferably, the dust removal structure of the bag filter also includes a frame and a dust collection hopper;

[0012] The chassis is fixedly connected to the frame, and its bottom is fixedly connected to the flared end of the ash collection hopper. A rectangular tube is connected to the constricted end of the ash collection hopper, and an ash discharge valve is installed on the rectangular tube.

[0013] Preferably, the ash discharge valve includes two push-pull plates;

[0014] Two rectangular slots are opened on one side of the rectangular tube along its width direction. The two rectangular slots correspond one-to-one with two push-pull plates. One end of each push-pull plate is inserted into the rectangular slot, and the other end is connected to a drive component for driving the push-pull plate to slide in the rectangular slot.

[0015] The ends of the two push-pull plates furthest from the drive component abut against the inner wall of the rectangular tube, thus dividing the inner cavity of the rectangular tube into an upper cavity, a middle cavity, and a lower cavity.

[0016] The upper cavity is connected to the ash collection hopper, the middle cavity is located between two push-pull plates, and the lower cavity is located on one side of a push-pull plate.

[0017] Preferably, the driving component is a cylinder, the cylinder seat of which is fixedly connected to the outer wall of the rectangular tube, and the piston rod is fixedly connected to the push-pull plate through a cross plate.

[0018] Preferably, the air outlet chamber is connected to an air outlet pipe, and the ash collection hopper is connected to an air inlet pipe;

[0019] The ash collection hopper is equipped with a diversion device, which includes an L-shaped plate and a V-shaped plate;

[0020] One end of the L-shaped plate is fixedly connected to the inner wall of the ash hopper and is directly above the air outlet of the air inlet pipe, while the other end of the L-shaped plate is located directly in front of the air outlet of the air inlet pipe.

[0021] The two ends of the V-shaped plate are fixedly connected to the inner wall of the ash hopper and one end of the L-shaped plate, respectively, and the constricted end of the V-shaped plate is located directly below the air outlet of the air inlet pipe.

[0022] This utility model also provides a bag dust collector, including a housing, a partition plate fixedly installed inside the housing, the partition plate dividing the housing into an air inlet chamber and an air outlet chamber, and having through holes, and a filter cartridge detachably installed on the partition plate, the filter cartridge communicating with the through holes;

[0023] The dust removal structure of the bag filter is located on the casing.

[0024] The beneficial effects of the above scheme are:

[0025] The mounting tube is inserted into the filter cartridge through the through-hole. Multiple jetting elements, including multiple telescopic tubes, are arranged circumferentially on the mounting tube, with their outlets facing the filter bags. Over time, a large amount of dust accumulates on the surface of the cylindrical filter bags, triggering the pulse jet motor. Pulsed airflow is ejected from the multiple telescopic tubes through the connecting pipe and the mounting tube. Multiple pulsed airflows impact the filter bags within the cartridge, achieving more effective dust removal at relatively low pressure. Furthermore, the design of the telescopic tubes can be adjusted according to the size and shape of the filter cartridge and the arrangement of the filter bags. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a three-dimensional structural diagram of the dust removal structure of the bag filter of this utility model;

[0028] Figure 2 yes Figure 1 The structural diagram shows area A.

[0029] Figure 3 yes Figure 1 A structural schematic diagram in cross-sectional view;

[0030] Figure 4 yes Figure 3 The B region is placed in the structural diagram;

[0031] Figure 5 This is a three-dimensional structural diagram of the dust removal structure of the bag filter of this utility model without the top cover.

[0032] Explanation of reference numerals in the attached figures

[0033] 1. Baghouse dust collector; 2. Casing; 3. Divider plate; 4. Inlet chamber; 5. Outlet chamber; 6. Through hole; 7. Filter cartridge;

[0034] 10. Pulse body;

[0035] 20. Connecting pipe;

[0036] 30. Installation pipe;

[0037] 40. Spraying component; 41. Telescopic tube;

[0038] 50. Frame; 51. Ash hopper; 52. Rectangular tube; 53. Ash discharge valve; 530. Push-pull plate;

[0039] 520. Rectangular through slot; 531. Driving component; 521. Upper cavity; 522. Middle cavity; 523. Lower cavity; 54. Horizontal plate;

[0040] 60. Air outlet pipe;

[0041] 70. Air intake pipe;

[0042] 80. Drainage component; 81. L-shaped plate; 82. V-shaped plate. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0044] like Figures 1-5 As shown, this embodiment provides a dust removal structure for a bag filter, which is installed on the bag filter 1, as follows. Figure 3 As shown, the bag filter 1 includes a housing 2, with a partition plate 3 fixedly installed inside the housing 2. The partition plate 3 divides the housing 2 into an inlet chamber 4 and an outlet chamber 5. The partition plate 3 also has a through hole 6. A filter cartridge 7 is detachably installed on the partition plate 3. The filter cartridge 7 is located in the inlet chamber 4 and communicates with the through hole 6. The dust removal structure of the bag filter 1 includes a pulse body 10 and a connecting pipe 20. The pulse body 10 uses existing technology, so it will not be described in detail. Please refer to patent publication number: CN222296995U - Chinese Utility Model Patent: An Energy-Saving Electromagnetic Pulse Valve. One end of the connecting pipe 20 is connected to the pulse body 10, and the other end of the connecting pipe 20 passes through the outlet chamber 5 and connects to the mounting pipe 30. The mounting pipe 30 passes through the through hole 6 and is inserted into the filter cartridge 7, with the axis of the mounting pipe 30 coinciding with the axis of the filter cartridge 7. The filter cartridge 7 uses existing technology, so it will not be described in detail. The filter cartridge has a filter bag, and the mounting tube 30 has multiple injection elements 40 arranged along its axial direction. Each injection element 40 includes multiple telescopic tubes 41, which are circumferentially connected and arranged on the mounting tube 30, and are located inside the filter cartridge 7. The air outlets of the multiple telescopic tubes 41 face the filter bag of the filter cartridge 7.

[0045] The mounting tube 30 is inserted into the filter cartridge 7 through the through hole 6. Multiple jetting elements 40 are arranged axially along the mounting tube 30. Each jetting element 40 includes multiple telescopic tubes 41, which are circumferentially connected and arranged on the mounting tube 30, with their outlets facing the filter bags of the filter cartridge 7. Over time, a large amount of dust adheres to the surface of the cylindrical filter bags, triggering the drive pulse unit 10 to operate. Pulsed airflow is ejected from the multiple telescopic tubes 41 through the connecting tube 20 and the mounting tube 30. Multiple pulsed airflows inside the filter cartridge 7 impact the filter bags, achieving more effective dust removal at lower pressure. Furthermore, the design of the telescopic tubes 41 can be adjusted reasonably according to the size and shape of the filter cartridge 7 and the arrangement of the filter bags.

[0046] Multiple through holes 6 are arranged in a matrix on the partition plate 3, and a filter cartridge 7 is installed at each through hole 6. There are multiple mounting tubes 30, and each mounting tube 30 corresponds to one through hole 6.

[0047] The dust removal structure of the bag filter also includes a frame 50 and a dust collection hopper 51. The housing 2 is fixedly connected to the frame 50, and the bottom of the housing 2 is fixedly connected to the flared end of the dust collection hopper 51. The constricted end of the dust collection hopper 51 is connected to a rectangular tube 52, and the rectangular tube 52 is equipped with a discharge valve 53. The discharge valve 53 includes two push-pull plates 530. Two rectangular through slots 520 are opened along the width direction on one side of the rectangular tube 52. The two rectangular through slots 520 correspond one-to-one with the two push-pull plates 530. One end of each push-pull plate 530 is inserted into the rectangular through slot 520, and the other end of the push-pull plate 530 is connected to a driving component 531 for sliding the push-pull plate 530 in the rectangular through slot 520. The driving component 531 is a cylinder, the cylinder seat is fixedly connected to the outer wall of the rectangular tube 52, and the piston rod of the cylinder is fixedly connected to the push-pull plate 530 through a horizontal plate 54. In this configuration, the ends of the two push-pull plates 530 furthest from the drive member 531 abut against the inner wall of the rectangular tube 52, thereby dividing the inner cavity of the rectangular tube 52 into an upper cavity 521, a middle cavity 522, and a lower cavity 523. The upper cavity 521 is connected to the ash collection hopper 51, the middle cavity 522 is located between the two push-pull plates 530, and the lower cavity 523 is located on one side of one push-pull plate 530 and is connected to the outside.

[0048] In the initial state, the ends of the two push-pull plates 530 furthest from the drive component 531 are abutting against the inner wall of the rectangular tube 52. The drive pulse body 10 starts working, and the pulse airflow is ejected from multiple telescopic tubes 41 through the connecting pipe 20 and the mounting pipe 30. Multiple pulse airflows inside the filter cartridge 7 hit the filter bag of the filter cartridge 7, and a large amount of dust on the outer layer of the filter bag falls into the rectangular tube 52. Since the air inlet chamber 4 is in a negative pressure chamber, the dust is in the upper chamber 521. The drive push-pull plate 530 slides, and the upper push-pull plate 530 gradually moves against the rectangular tube 52. The inner wall of the rectangular tube 52 separates, and the dust falls into the middle cavity 522. Then, the upper push-pull plate 530 resets, and the lower push-pull plate 530 opens, allowing the dust to fall from the middle cavity 522 into the lower cavity 523. The dust then further falls from the lower cavity 523 to the outside, completing the dust removal process. The gradual separation of the upper push-pull plate 530 from the inner wall of the rectangular tube 52, with the dust falling into the middle cavity 522, and the subsequent reset and opening of the lower push-pull plate 530, does not affect the negative pressure state of the air intake cavity 4. Furthermore, the movement of the push-pull plate 530 is achieved through the extension and retraction of the piston rod of the cylinder.

[0049] An exhaust pipe 60 is connected to the exhaust chamber 5, and an intake pipe 70 is connected to the ash hopper 51. A guide component 80 is installed inside the ash hopper 51, comprising an L-shaped plate 81 and a V-shaped plate 82. One end of the L-shaped plate 81 is fixedly connected to the inner wall of the ash hopper 51 and is directly above the exhaust port of the intake pipe 70; the other end of the L-shaped plate 81 is located directly in front of the exhaust port of the intake pipe 70. Both ends of the V-shaped plate 82 are fixedly connected to the inner wall of the ash hopper 51 and one end of the L-shaped plate 81, respectively, with the constricted end of the V-shaped plate 82 located directly below the exhaust port of the intake pipe 70. Gas ejected from the exhaust port of the intake pipe 70 impacts one end of the L-shaped plate 81, and the airflow further flows from both sides of that end of the L-shaped plate 81, thus guiding the gas flow.

[0050] This utility model also provides a bag filter dust collector 1, including a housing 2. A partition plate 3 is fixedly installed inside the housing 2, dividing the housing 2 into an inlet chamber 4 and an outlet chamber 5, and a through hole 6 is provided. A filter cartridge 7 is detachably installed on the partition plate 3, and the filter cartridge 7 communicates with the through hole 6. The dust removal structure of the bag filter dust collector 1 is set on the housing 2.

[0051] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A dust removal structure for a bag filter, installed on a bag filter, the bag filter including a housing, a partition plate fixedly disposed inside the housing, the partition plate dividing the housing into an inlet chamber and an outlet chamber, and having a through hole, a filter cartridge detachably disposed on the partition plate, the filter cartridge communicating with the through hole and located within the inlet chamber, characterized in that, Includes the pulse body and connecting tube; One end of the connecting pipe is connected to the pulse body, and the other end passes through the air outlet chamber to connect to the mounting pipe. The mounting tube passes through the through hole and is inserted into the filter cartridge, with its axis coinciding with the axis of the filter cartridge; The mounting pipe is arranged with multiple spray elements along its axial direction. Each spray element includes multiple telescopic tubes, which are arranged circumferentially connected on the mounting pipe and located inside the filter cartridge.

2. The dust removal structure of the bag filter according to claim 1, characterized in that, The air outlets of the multiple telescopic tubes face the filter cartridge's cloth bag.

3. The dust removal structure of the bag filter according to claim 1, characterized in that, The partition plate has a plurality of through holes arranged in a matrix, and the filter cartridge is installed at each of the through holes; There are multiple mounting tubes, and each mounting tube corresponds to a through hole.

4. The dust removal structure of the bag filter according to claim 1, characterized in that, It also includes the frame and ash collection hopper; The chassis is fixedly connected to the frame, and its bottom is fixedly connected to the flared end of the ash collection hopper. A rectangular tube is connected to the constricted end of the ash collection hopper, and an ash discharge valve is installed on the rectangular tube.

5. The dust removal structure of the bag filter according to claim 4, characterized in that, The ash discharge valve includes two push-pull plates; Two rectangular through slots are opened on one side of the rectangular tube along its width direction. The two rectangular through slots correspond one-to-one with the two push-pull plates. One end of each push-pull plate is inserted into the rectangular through slot, and the other end is connected to a driving component for driving the push-pull plate to slide in the rectangular through slot. The ends of the two push-pull plates furthest from the driving member abut against the inner wall of the rectangular tube, thereby dividing the inner cavity of the rectangular tube into an upper cavity, a middle cavity, and a lower cavity. The upper cavity is connected to the ash collection hopper, the middle cavity is located between the two push-pull plates, and the lower cavity is located on one side of one of the push-pull plates.

6. The dust removal structure of the bag filter according to claim 5, characterized in that, The driving component is a cylinder, the cylinder seat of which is fixedly connected to the outer wall of the rectangular tube, and the piston rod is fixedly connected to the push-pull plate through a cross plate.

7. The dust removal structure of the bag filter according to claim 5, characterized in that, The air outlet chamber is connected to an air outlet pipe, and the ash collection hopper is connected to an air inlet pipe. The ash collection hopper is equipped with a flow guide, which includes an L-shaped plate and a V-shaped plate; One end of the L-shaped plate is fixedly connected to the inner wall of the ash collection hopper, and one end is located directly above the air outlet of the air inlet pipe, while the other end of the L-shaped plate is located directly in front of the air outlet of the air inlet pipe. The two ends of the V-shaped plate are fixedly connected to the inner wall of the ash collection hopper and one end of the L-shaped plate, respectively, and the constricted end of the V-shaped plate is located directly below the air outlet of the air inlet pipe.

8. A bag filter dust collector, characterized in that, Includes a chassis, inside which a partition plate is fixedly installed, dividing the chassis into an air inlet chamber and an air outlet chamber, and having a through hole. A filter cartridge is detachably installed on the partition plate, and the filter cartridge communicates with the through hole. The dust removal structure of the bag filter as described in any one of claims 1 to 7 is provided on the casing.

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