Dustproof filter bag device with self-cleaning pulse blowback function

Abstract

The utility model discloses a dustproof filter bag device with a self-cleaning pulse blowback function, which relates to the technical field of dustproof filter bags and comprises a dustproof box and a dustproof mechanism. The dustproof mechanism comprises a filter bag structure, a back flushing structure, a dust guide seat, a dust guide funnel, a collection box and air extraction equipment; the dustproof box, the filter bag structure, the back flushing structure, the dust inlet pipe and the air outlet pipe are used in cooperation to filter gas with dust and can conduct dust removal treatment on the filter bag structure, and the air exhaust equipment, the air exhaust pipe, the telescopic square pipe, the dust guide funnel and the dust guide base are matched to suck flying dust generated by dust removal into the collecting box. The dust guide plate and the filter screen are matched to filter dust sucked by the air exhaust equipment, the dust on the dust guide plate can be guided into the collecting box through the first connecting pipe, the second connecting pipe, the connector and the buffer spring, the situation that the use effect of the reverse blowing structure is reduced due to reentrainment of dust is avoided, the filtering effect of the filter bag structure is improved, and the service life of the filter bag structure is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of dust filter bag technology, specifically a dust filter bag device with self-cleaning pulse backflushing. Background Technology

[0002] Dust filter bag devices are bag-shaped filtration devices made of fiber fabrics (such as polyester, PPS, PTFE, etc.) or non-woven felt. They capture dust through mechanisms such as sieving, inertial collision, and diffusion in the fiber pores. Self-cleaning pulse backflushing is a highly efficient gas filtration technology, mainly used in industrial dust removal systems. It maintains continuous operation of the equipment through an automated dust removal mechanism. Its core principle is to remove dust adhering to the surface of the filter material by pulse jet compressed air, and it has both intelligent control and high-efficiency filtration characteristics.

[0003] Existing dust filter bag devices with self-cleaning pulse backflushing have certain drawbacks. When the filter bag structure is cleaned by the self-cleaning pulse backflushing after a period of use, the dust is distributed throughout the entire machine. During the natural settling process, some dust falls back onto the surface of the filter bag structure, which still increases the operating resistance of the dust filter bag device and reduces its effectiveness, failing to meet people's needs. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a dust filter bag device with self-cleaning pulse backflushing.

[0005] A dustproof filter bag device with self-cleaning pulse backflushing includes: a dustproof box and a dustproof mechanism disposed on the dustproof box; the dustproof mechanism includes several sets of filter bag structures detachably installed on the upper inner side of the dustproof box and a backflushing structure matched with the filter bag structures; the dustproof mechanism also includes a dust guide seat detachably installed on the lower side of the filter bag structure, several sets of dust guide funnels detachably installed on the lower side of the dust guide seat and communicating with the dust guide seat, a collection box detachably installed on the bottom inner side of the dustproof box and communicating with the dust guide funnels, and an air extraction device communicating with the collection box and extracting dust from the dustproof box through the dust guide funnels.

[0006] As a further embodiment of this utility model: the ash guide seat is provided with several sets of ash guide grooves communicating with the ash guide funnel; the lower end face of the ash guide seat is provided with several sets of reinforcing strips connected to the ash guide funnel; the air extraction device is located on the outside of the collection box; the lower end of the ash guide funnel is provided with a telescopic square tube that can be inserted into the collection box; the outer wall of the telescopic square tube is provided with a sealing block that seals and fits tightly with the collection box.

[0007] As a further embodiment of this utility model: the dustproof mechanism further includes an exhaust pipe detachably installed on the inner wall of the collection box, a dust guide plate rotatably installed on the inner wall of the collection box and filtering dust, and a connecting structure detachably installed on the exhaust pipe and elastically connected to the dust guide plate; the dust guide plate has an exhaust groove in the middle that communicates with the exhaust pipe; a filter screen for filtering dust is installed in the exhaust groove; the dust guide plate is installed at an angle inside the collection box; the other end of the exhaust pipe extends out of the collection box and communicates with the exhaust equipment.

[0008] As a further embodiment of this utility model: the connection structure includes a first connecting pipe connected to the air extraction pipe and a second connecting pipe coaxially connected to the first connecting pipe; one end of the second connecting pipe is provided with a connector communicating with the air extraction groove; the second connecting pipe is configured as an elastic pipe; the first connecting pipe is configured as a rigid pipe.

[0009] As a further embodiment of this utility model: a buffer spring is sleeved on the outer side of the second connecting pipe to make the dust guide plate vibrate elastically; the two ends of the buffer spring are respectively connected to the first connecting pipe and the connector. The buffer spring and the second connecting pipe cooperate to make the dust guide plate vibrate while rotating inside the collection box, thereby guiding the dust on the dust guide plate into the collection box.

[0010] As a further embodiment of this utility model: the dustproof mechanism also includes a collection box movably disposed inside the collection box; the collection box is disposed below the dust guide plate and is used to collect the dust falling from the dust guide plate; the lower outer side of the dustproof box is rotatably provided with a closable box door, and opening the box door allows for cleaning and maintenance of the collection box.

[0011] As a further embodiment of this utility model, the dustproof mechanism also includes a mounting base that is detachably installed on the upper inner side of the dustproof box and used to fix the filter bag structure, an ash inlet pipe that is detachably installed on the middle of one side of the dustproof box and extends into the lower part of the filter bag structure, and an air outlet pipe that is installed on the upper side of the other side of the dustproof box and matched with the filter bag structure.

[0012] As a further embodiment of this utility model: the backflushing structure includes several sets of blowpipes matched with the filter bag structure and electromagnetic pulse valves connected to the blowpipes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model, through the setting of dustproof box and dustproof mechanism, the dustproof box, filter bag structure, back-blowing structure, ash inlet pipe and air outlet pipe are used together to filter the gas with dust and clean the filter bag structure. The air extraction device, air extraction pipe, telescopic square pipe, ash funnel and ash guide seat are used together to draw the dust generated during cleaning into the collection box. The ash guide plate and filter screen are used together to filter the dust sucked in by the air extraction device. The first connecting pipe, second connecting pipe, connector and buffer spring are used together to guide the dust on the ash guide plate into the collection box, avoid secondary dust raising and reduce the use effect of the back-blowing structure, improve the filtration effect of the filter bag structure and extend the service life of the filter bag structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0016] Figure 2 This is a partial structural diagram of the dustproof box and dustproof mechanism in this utility model.

[0017] Figure 3 This is a partial structural diagram of the dustproof mechanism in this utility model.

[0018] Figure 4 This is a cross-sectional view of the collection box in this utility model.

[0019] Figure 5 This is a partial structural diagram of the guide plate and connecting structure in this utility model.

[0020] In the diagram: 1. Dustproof box; 2. Filter bag structure; 3. Backflushing structure; 4. Ash guide seat; 5. Ash guide funnel; 6. Collection box; 7. Air extraction equipment; 8. Ash guide trough; 9. Telescopic square tube; 10. Sealing block; 11. Air extraction pipe; 12. Ash guide plate; 13. Connecting structure; 14. Filter screen; 15. First connecting pipe; 16. Second connecting pipe; 17. Connector; 18. Buffer spring; 19. Collection box; 20. Mounting base; 21. Ash inlet pipe; 22. Air outlet pipe; 23. Blow-off pipe; 24. Electromagnetic pulse valve. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1

[0023] Please see Figure 1 - Figure 5This application provides a dustproof filter bag device with self-cleaning pulse backflushing, comprising: a dustproof box 1 and a dustproof mechanism disposed on the dustproof box 1; the dustproof mechanism includes several sets of filter bag structures 2 detachably installed on the upper inner side of the dustproof box 1 and a backflushing structure 3 matched with the filter bag structures 2; the dustproof mechanism also includes a dust guide seat 4 detachably installed on the lower side of the filter bag structures 2, several sets of dust guide funnels 5 detachably installed on the lower side of the dust guide seat 4 and communicating with the dust guide seat 4, and a dust guide funnel 5 detachably installed on the bottom inner side of the dustproof box 1 and communicating with the dust guide seat 4. The dust collection box 6 is connected to the funnel 5, and the air extraction device 7 is connected to the collection box 6 and extracts dust from the dust box 1 through the dust guide funnel 5. The outer surfaces of the dust guide seat 4 and the dust guide funnel 5 are coated with an anti-sticking layer. The dustproof mechanism also includes a mounting seat 20 that is detachably installed on the upper inner side of the dust box 1 and used to fix the filter bag structure 2, an inlet pipe 21 that is detachably installed on the middle of one side of the dust box 1 and extends into the lower part of the filter bag structure 2, and an outlet pipe 22 that is installed on the upper side of the other side of the dust box 1 and matched with the filter bag structure 2.

[0024] In this embodiment, dust-laden gas is introduced into the dust box 1 through the ash inlet pipe 21, so that several sets of filter bag structures 2 work together to filter the dust-laden gas, and the filtered gas is discharged from the dust box 1 through the air outlet pipe 22. When the pressure difference between the inside and outside of the filter bag structure 2 reaches the set value, the back-blowing structure 3 is activated to clean the filter bag structure 2, and the air extraction device 7 is activated to suck the flying dust into the collection box 6 through the ash guide seat 4 and the ash guide funnel 5.

[0025] In this utility model, the ash guide seat 4 is provided with several sets of ash guide grooves 8 that communicate with the ash guide funnel 5; the lower end face of the ash guide seat 4 is provided with several sets of reinforcing strips that are connected to the ash guide funnel 5; the air extraction device 7 is provided on the outside of the collection box 6; the lower end of the ash guide funnel 5 is provided with a telescopic square tube 9 that can be inserted into the collection box 6; the outer wall of the telescopic square tube 9 is provided with a sealing block 10 that is sealed and fitted to the collection box 6.

[0026] In this embodiment, the telescopic square tube 9 is removed from the collection box 6, the collection box 6 is disassembled and separated from the air extraction device 7, and the collection box 6 is disassembled and maintained.

[0027] In this utility model, the dustproof mechanism also includes an exhaust pipe 11 detachably installed on the inner wall of the collection box 6, a dust guide plate 12 rotatably installed on the inner wall of the collection box 6 and filtering dust, and a connecting structure 13 detachably installed on the exhaust pipe 11 and elastically connected to the dust guide plate 12; the middle part of the dust guide plate 12 is provided with an exhaust groove communicating with the exhaust pipe 11; a filter screen 14 for filtering dust is installed in the exhaust groove; the dust guide plate 12 is installed obliquely inside the collection box 6; the other end of the exhaust pipe 11 extends out of the collection box 6 and is connected to the exhaust device 7.

[0028] In this embodiment, the air extraction device 7 is activated, and air is extracted through the air extraction pipe 11, so that the flying dust enters the dust extraction funnel 5 through the dust extraction groove 8 on the dust guide seat 4, and enters the collection box 6 through the telescopic square tube 9, and the filter screen 14 filters the dust to prevent the dust from entering the air extraction pipe 11. The connecting structure 13 causes the dust guide plate 12 to rotate and vibrate in the collection box 6, thereby guiding the dust on the dust guide plate 12 into the collection box 19.

[0029] In this utility model, the connecting structure 13 includes a first connecting pipe 15 connected to the air extraction pipe 11 and a second connecting pipe 16 coaxially connected to the first connecting pipe 15; one end of the second connecting pipe 16 is provided with a connector 17 connected to the air extraction groove; the second connecting pipe 16 is configured as an elastic pipe; the first connecting pipe 15 is configured as a rigid pipe.

[0030] In this invention, a buffer spring 18 is sleeved on the outer side of the second connecting pipe 16 to cause the guide plate 12 to vibrate elastically; the two ends of the buffer spring 18 are respectively connected to the first connecting pipe 15 and the connector 17. The buffer spring 18 and the second connecting pipe 16 cooperate to make the guide plate 12 vibrate while rotating inside the collection box 6, thereby guiding the dust on the guide plate 12 into the collection box 19.

[0031] In this embodiment, when the air extraction device 7 performs air extraction, the second connecting pipe 16 causes the guide plate 12 to rotate, and the buffer spring 18 causes the guide plate 12 to vibrate.

[0032] In this utility model, the dustproof mechanism also includes a collection box 19 movably disposed inside the collection box 6; the collection box 19 is disposed below the dust guide plate 12 and is used to collect the dust falling from the dust guide plate 12; the lower outer side of the dustproof box 1 is rotatably provided with a closable box door, and the collection box 19 can be cleaned and maintained by opening the box door.

[0033] In this utility model, the backflush structure 3 includes several sets of blow pipes 23 that are matched with the filter bag structure 2 and electromagnetic pulse valves 24 that are connected to the blow pipes 23.

[0034] In summary, the dust box 1, filter bag structure 2, back-blowing structure 3, ash inlet pipe 21, and air outlet pipe 22 work together to filter dusty gas and clean the filter bag structure 2. The extraction device 7, extraction pipe 11, telescopic square pipe 9, ash funnel 5, and ash guide seat 4 work together to draw the dust generated during cleaning into the collection box 6. The ash guide plate 12 and filter screen 14 work together to filter the dust sucked in by the extraction device 7. The first connecting pipe 15, the second connecting pipe 16, the connector 17, and the buffer spring 18 work together to guide the dust on the ash guide plate 12 into the collection box 19, preventing secondary dust generation and reducing the effectiveness of the back-blowing structure 3.

[0035] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A dust filter bag device with self-cleaning pulse backflushing, characterized in that, include: Dustproof box (1) and dustproof mechanism installed on dustproof box (1); The dustproof mechanism includes several sets of filter bag structures (2) that can be detachably installed on the upper inner side of the dustproof box (1) and a back-blowing structure (3) that matches the filter bag structure (2). The dustproof mechanism also includes a dust guide seat (4) detachably installed on the lower side of the filter bag structure (2), several sets of dust guide funnels (5) detachably installed on the lower side of the dust guide seat (4) and connected to the dust guide seat (4), a collection box (6) detachably installed on the inner bottom surface of the dustproof box (1) and connected to the dust guide funnel (5), and an air extraction device (7) connected to the collection box (6) and extracting dust from the dustproof box (1) through the dust guide funnel (5).

2. The dust filter bag device with self-cleaning pulse backflushing according to claim 1, characterized in that, The ash guide seat (4) is provided with several sets of ash guide grooves (8) that are connected to the ash guide funnel (5). The air extraction device (7) is located on the outside of the collection box (6); The lower end of the ash funnel (5) is provided with a telescopic square tube (9) that can be inserted into the collection box (6). The outer wall of the telescopic square tube (9) is provided with a sealing block (10) that is in close contact with the collection box (6).

3. A dust filter bag device with self-cleaning pulse backflushing according to claim 2, characterized in that, The dustproof mechanism also includes an exhaust pipe (11) that can be detachably installed on the inner wall of the collection box (6), a dust guide plate (12) that is rotatably installed on the inner wall of the collection box (6) and filters the dust, and a connection structure (13) that is detachably installed on the exhaust pipe (11) and elastically connected to the dust guide plate (12). The middle part of the guide plate (12) is provided with an air extraction groove that is connected to the air extraction pipe (11); The air extraction tank is equipped with a filter screen (14) for filtering dust. The guide plate (12) is installed at an angle inside the collection box (6); The other end of the extraction pipe (11) extends out of the collection box (6) and is connected to the extraction device (7).

4. A dust filter bag device with self-cleaning pulse backflushing according to claim 3, characterized in that, The connection structure (13) includes a first connecting pipe (15) connected to the air extraction pipe (11) and a second connecting pipe (16) coaxially connected to the first connecting pipe (15). One end of the second connecting pipe (16) is provided with a connector (17) that communicates with the air extraction groove; The second connecting pipe (16) is configured as an elastic pipe; The first connecting pipe (15) is configured as a rigid pipe.

5. A dust filter bag device with self-cleaning pulse backflushing according to claim 4, characterized in that, The outer side of the second connecting pipe (16) is fitted with a buffer spring (18) that provides elastic vibration to the guide plate (12). The two ends of the buffer spring (18) are connected to the first connecting pipe (15) and the connector (17), respectively.

6. A dust filter bag device with self-cleaning pulse backflushing according to claim 3, characterized in that, The dustproof mechanism also includes a collection box (19) that is movably disposed inside the collection box (6); The collection box (19) is located below the dust guide plate (12) and is used to collect the dust falling from the dust guide plate (12).

7. A dust filter bag device with self-cleaning pulse backflushing according to claim 1, characterized in that, The dustproof mechanism also includes a mounting base (20) that is detachably installed on the upper inner side of the dustproof box (1) and used to fix the filter bag structure (2), an ash inlet pipe (21) that is detachably installed on the middle of one side of the dustproof box (1) and extends into the lower part of the filter bag structure (2), and an air outlet pipe (22) that is installed on the upper side of the other side of the dustproof box (1) and matched with the filter bag structure (2).

8. A dust filter bag device with self-cleaning pulse backflushing according to claim 1, characterized in that, The backflush structure (3) includes several sets of blow pipes (23) matched with the filter bag structure (2) and electromagnetic pulse valves (24) connected to the blow pipes (23).

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