Ash removal device of bag-type dust collector

Abstract

The utility model relates to a dust cleaning device of a bag-type dust collector, which comprises a bag-type dust collector body, a fixing plate is fixedly mounted on the inner wall of the bag-type dust collector body, a plurality of bag cages are fixedly mounted on the inner wall of the fixing plate, and filter bags are mounted on the outer walls of the bag cages. A pulse blowback assembly and a dust collection assembly are arranged in the bag-type dust collector body, a sweeping assembly used for cleaning dust is arranged in the bag-type dust collector body, the sweeping assembly comprises two mounting blocks fixedly mounted on the inner wall of the bag-type dust collector body, a screw rod is rotationally mounted at the top of the mounting block on one side, and a screw rod is rotationally mounted at the top of the mounting block on the other side; and a sliding rod is fixedly mounted at the top of the mounting block on the other side, a threaded block is mounted on the surface of the lead screw in a threaded mode, and a sliding block is slidably mounted on the surface of the sliding rod. The dust cleaning device of the bag-type dust collector can effectively clean dust on the surface of a filter bag, the service life of the filter bag is not easily affected, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust cleaning for bag dust collectors, in particular to a dust cleaning device for bag dust collectors. Background Art

[0002] A bag dust collector is a dry dust filtering device that is suitable for capturing fine, dry, non-fibrous dust. After long-term use, a large amount of dust will accumulate on the surface of the filter bag, causing the dust to adhere to the filter bag, reducing the filtration rate of the filter bag.

[0003] The existing cleaning method of bag dust collector is mostly to clean the filter bags manually, which is not only time-consuming and labor-intensive, but also the dust collector cannot be used normally during cleaning, thereby reducing the working efficiency of the bag dust collector and making it impossible to clean the box body.

[0004] In view of this, Chinese patent CN219167951 U discloses a dust cleaning device for a bag dust collector, which is provided with a chassis, a placement plate, a motor, a first bevel gear, a second bevel gear, a first transmission shaft, a first sprocket, a double-drive sprocket, a first rotating rod, a first cam, a second sprocket, a second rotating rod, a second cam, a first chain, and a second chain. The motor is started, and the motor output shaft drives the first bevel gear to operate, the first bevel gear drives the second bevel gear to operate, the second bevel gear drives the first transmission shaft to operate, the first transmission shaft drives the first sprocket to operate, the first sprocket drives the double-drive sprocket to operate under the action of the first chain, the double-drive sprocket drives the first rotating rod to operate, the first rotating rod drives the first cam to operate, the double-drive sprocket drives the second sprocket to operate under the action of the second chain, the second sprocket drives the second rotating rod to operate, and the second rotating rod drives the second cam to operate, so that the filter bag can be cleaned.

[0005] By comparing the above existing documents, the inventor believes that the following defects still exist:

[0006] Although the comparative document can improve the cleaning effect by vibrating the filter bag through the rotation of the second cam, in the actual use of the bag dust collector, in order to ensure that the filter bag is not sucked out during filtration, some bag dust collectors generally install bag cages or dust removal frames inside the filter bags, which can be easily damaged by knocking from the inside by the cam, thus affecting the service life of the filter bag and having poor practicality. In view of this, we propose a cleaning device for bag dust collector to solve the above problems. Utility Model Content

[0007] In view of the deficiencies of the prior art, the utility model provides a dust cleaning device for a bag filter, which solves the problem that the prior art easily affects the service life of the filter bag by knocking from the inside through a cam and has poor practicality.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dust cleaning device for a bag dust collector comprises a bag dust collector body, wherein a fixing plate is fixedly installed on the inner wall of the bag dust collector body, a plurality of bag cages are fixedly installed on the inner wall of the fixing plate, and filter bags are installed on the outer wall of the bag cages, a pulse back-blowing component and a dust suction component are arranged inside the bag dust collector body, and a cleaning component for cleaning dust is arranged inside the bag dust collector body, and the cleaning component comprises two mounting blocks fixedly installed on the inner wall of the bag dust collector body, a screw rod is rotatably installed on the top of the mounting block on one side, and a sliding rod is fixedly installed on the top of the mounting block on the other side, a threaded block is threadedly installed on the surface of the screw rod, and a sliding block is slidably installed on the surface of the sliding rod, a movable plate is fixedly installed between the threaded block and the sliding block, a plurality of cleaning strips compatible with the filter bags are fixedly installed on the inner wall of the movable plate, and a driving component for driving the screw rod to rotate is also arranged inside the bag dust collector body.

[0009] Furthermore, a plurality of slots are provided on the surface of the movable plate, and the cleaning strip is fixedly mounted on the inner wall of the slot, and the inner wall of the cleaning strip is in contact with the outer wall of the filter bag.

[0010] Furthermore, a ventilation plate is fixedly installed on the inner wall of the bag filter body and located above the fixed plate, and a fixed pipe is fixedly installed on the top of the ventilation plate.

[0011] Furthermore, the pulse back-blow assembly includes a pulse back-blow air blower fixedly mounted on the outer wall of the bag dust collector body, the output end of the pulse back-blow air blower is fixedly mounted on a blowing pipe connected to a fixed pipe, and a plurality of nozzles are fixedly mounted at the bottom of the ventilation plate and above the bag cage.

[0012] Furthermore, the dust suction assembly includes a suction fan fixedly installed on the inner wall of the bag-type dust collector body, an intake pipe connected to a fixed pipe is fixedly installed on the input end of the suction fan, an electromagnetic valve is fixedly installed on the surface of the intake pipe, an exhaust pipe extending to the outside of the bag-type dust collector body is fixedly installed on the output end of the suction fan, and a plurality of connecting pipes for air intake are fixedly installed on the bottom of the ventilation plate.

[0013] Further, the driving assembly includes a rotating shaft rotatably mounted on the top wall of the fixed tube, a driving blade is mounted on the bottom of the rotating shaft, a first conical gear ring is fixedly mounted on the surface of the rotating shaft, a rotating rod extending into the fixed tube is rotatably mounted on the inner wall of the bag collector body, a first conical gear meshing with the first conical gear ring is fixedly mounted on one end of the rotating rod located inside the fixed tube, a second conical gear ring is fixedly mounted on the surface of the rotating rod, the top end of the screw rod extends to above the ventilation plate, and the top end of the screw rod is fixedly mounted with a second conical gear meshing with the second conical gear ring.

[0014] Furthermore, a first sealing sleeve is fixedly mounted on the inner wall of the fixed plate, and the outer wall of the screw rod is rotatably connected to the inner wall of the first sealing sleeve.

[0015] Furthermore, a second sealing sleeve is fixedly mounted on the inner wall of the fixed tube, and the outer wall of the rotating rod is rotatably connected to the inner wall of the second sealing sleeve.

[0016] Compared with the prior art, the utility model provides a dust cleaning device for a bag dust collector, which has the following beneficial effects:

[0017] 1. The cleaning device of the bag filter drives the screw to rotate, so that the threaded block drives the movable plate to move. The cleaning strip on the inner side of the movable plate can scrape the outer wall of the filter bag. Combined with the pulse back-blowing component, the dust on the surface of the filter bag can be effectively cleaned without affecting the service life of the filter bag, which greatly improves the practicality of the device.

[0018] 2. The cleaning device of the bag dust collector can drive the screw to rotate through the wind force of the dust suction component so that the cleaning strip can be scraped upwards by the filter bag, and can drive the screw to rotate in the opposite direction through the wind force of the pulse back-blowing component so that the cleaning strip can be scraped downwards by the filter bag, thereby making the structure of the bag dust collector for cleaning the filter bag more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front sectional view of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the bag cage and filter bag of the utility model;

[0021] Figure 3 This is the front view of the movable plate, threaded block and slider of the utility model;

[0022] Figure 4 This is a schematic diagram of the drive assembly of the utility model;

[0023] Figure 5 This is a schematic diagram of the cleaning strip of the utility model;

[0024] Figure 6 This is a cross-sectional view of the fixed tube, the driving blade, the rotating rod and the second sealing sleeve of the utility model;

[0025] Figure 7 This is a schematic diagram of the second embodiment of the present utility model.

[0026] In the figure: 1. bag filter body; 2. fixing plate; 3. bag cage; 4. filter bag; 5. ventilation plate; 6. mounting block; 7. screw rod; 8. slide rod; 9. fixing pipe; 10. rotating shaft; 11. driving blade; 12. first conical gear ring; 13. first conical gear; 14. rotating rod; 15. second conical gear ring; 16. second conical gear; 17. connecting pipe; 18. nozzle; 19. pulse back-blowing machine; 20. blowing pipe; 21. suction fan; 22. suction pipe; 23. exhaust pipe; 24. solenoid valve; 25. first sealing sleeve; 26. second sealing sleeve; 27. threaded block; 28. cleaning strip; 29. ​​movable plate; 30. slider; 31. motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 and Figure 2 A dust cleaning device for a bag filter comprises a bag filter body 1, a fixing plate 2 is fixedly mounted on the inner wall of the bag filter body 1, a plurality of bag cages 3 are fixedly mounted on the inner wall of the fixing plate 2, and filter bags 4 are mounted on the outer wall of the bag cages 3.

[0029] The bag cage 3 is used to support the filter bag 4 to prevent the filter bag 4 from being sucked flat. This is a prior art and will not be described in detail here.

[0030] A pulse backflush assembly and a dust suction assembly are arranged inside the bag filter body 1, wherein the pulse backflush assembly is used to clean the filter bag 4, and the dust suction assembly is used to absorb external dust into the bag filter body 1 for filtering.

[0031] See also Figure 3 and Figure 4 as well as Figure 5 A cleaning assembly for cleaning dust is provided inside the bag-type dust collector body 1, and the cleaning assembly includes two mounting blocks 6 fixedly mounted on the inner wall of the bag-type dust collector body 1, a screw rod 7 is rotatably mounted on the top of the mounting block 6 on one side, and a slide rod 8 is fixedly mounted on the top of the mounting block 6 on the other side, a threaded block 27 is threadedly mounted on the surface of the screw rod 7, a slide block 30 is slidably mounted on the surface of the slide rod 8, a movable plate 29 is fixedly mounted between the threaded block 27 and the slide block 30, and a plurality of cleaning strips 28 adapted to the filter bag 4 are fixedly mounted on the inner wall of the movable plate 29.

[0032] By driving the screw rod 7 to rotate, the threaded block 27 drives the movable plate 29 to move. The cleaning strip 28 on the inner side of the movable plate 29 can scrape the outer wall of the filter bag 4. In combination with the pulse back-blowing component, the dust on the surface of the filter bag 4 can be effectively cleaned without affecting the service life of the filter bag 4, thereby greatly improving the practicality of the device.

[0033] In this embodiment, a plurality of grooves are formed on the surface of the movable plate 29 , and the cleaning strips 28 are fixedly mounted on the inner walls of the grooves, and the inner walls of the cleaning strips 28 are in contact with the outer walls of the filter bag 4 .

[0034] It is worth noting that the filter bag 4 is always in contact with the inner wall of the cleaning strip 28 whether in the process of expansion due to backblowing or in the normal filtering process.

[0035] In this embodiment, a ventilation plate 5 is fixedly installed on the inner wall of the bag filter body 1 and above the fixed plate 2 , and a fixed pipe 9 is fixedly installed on the top of the ventilation plate 5 .

[0036] See also Figure 1 and Figure 4 In this embodiment, the pulse back-blow assembly includes a pulse back-blow air blower 19 fixedly mounted on the outer wall of the bag dust collector body 1, the output end of the pulse back-blow air blower 19 is fixedly mounted on a blowing pipe 20 connected to the fixed pipe 9, and a plurality of nozzles 18 are fixedly mounted at the bottom of the ventilation plate 5 and above the bag cage 3.

[0037] It is worth noting that the input end of the pulse back-blowing blower 19 is used to connect to an external high-pressure air source, such as a high-pressure air bag, etc., and the blowing pipe 20 is a one-way air pipe.

[0038] In addition, through the action of pulse backblowing, high-pressure gas will flow into the filter bag 4, causing the filter bag 4 to expand and deform to produce vibration, and under the action of the reverse airflow, the dust attached to the outer surface of the filter bag 4 is peeled off and falls into the ash hopper, thereby achieving the effect of cleaning.

[0039] In this embodiment, the dust suction assembly includes a suction fan 21 fixedly installed on the inner wall of the bag dust collector body 1, the input end of the suction fan 21 is fixedly installed with an intake pipe 22 connected to the fixed pipe 9, the surface of the intake pipe 22 is fixedly installed with a solenoid valve 24, the output end of the suction fan 21 is fixedly installed with an exhaust pipe 23 extending to the outside of the bag dust collector body 1, and a plurality of connecting pipes 17 for intake are fixedly installed at the bottom of the ventilation plate 5.

[0040] Among them, when the bag dust collector body 1 is performing dust removal normally, the suction force generated by the suction fan 21 will adsorb the dust entering the bag dust collector body 1 through the fixed pipe 9 and the connecting pipe 17, the large particles of dust will be filtered by the filter bag 4, and the purified gas will be discharged through the exhaust pipe 23.

[0041] In this embodiment, a driving assembly for driving the screw 7 to rotate is also provided inside the bag collector body 1, and the driving assembly includes a rotating shaft 10 rotatably mounted on the inner top wall of the fixed tube 9, a driving blade 11 is installed at the bottom of the rotating shaft 10, and a first conical gear ring 12 is fixedly mounted on the surface of the rotating shaft 10. A rotating rod 14 extending into the fixed tube 9 is rotatably mounted on the inner wall of the bag collector body 1, and a first conical gear 13 meshing with the first conical gear ring 12 is fixedly mounted at one end of the rotating rod 14 located inside the fixed tube 9, and a second conical gear ring 15 is fixedly mounted on the surface of the rotating rod 14. The top end of the screw rod 7 extends to above the ventilation plate 5, and the top end of the screw rod 7 is fixedly mounted with a second conical gear 16 meshing with the second conical gear ring 15.

[0042] Among them, under the suction force of the suction fan 21, the driving blade 11 will rotate, thereby rotating the rotating rod 14 through the first conical gear ring 12 and the first conical gear 13, and then rotating the screw rod 7 through the second conical gear ring 15 and the second conical gear 16. When the screw rod 7 rotates, the movable plate 29 will move upward, and then the outer wall of the filter bag 4 can be preliminarily scraped through the cleaning strip 28 to reduce the dust adsorbed on the surface of the filter bag 4.

[0043] In addition, during the pulse backblowing cleaning process, the high-pressure gas will cause the driving blade 11 to rotate in the opposite direction when passing through the fixed pipe 9, thereby causing the screw 7 to rotate in the opposite direction, and then causing the cleaning strip 28 to scrape downward along the surface of the filter bag 4. The cleaning strip 28 cooperates with the pulse backblowing to effectively clean the dust on the surface of the filter bag 4.

[0044] The wind-driven screw 7 of the dust suction component rotates so that the cleaning strip 28 can scrape upwards of the filter bag 4. The wind-driven screw 7 of the pulse back-blowing component rotates in the opposite direction so that the cleaning strip 28 can scrape downwards of the filter bag 4. This makes the structure of the bag dust collector for cleaning the filter bag 4 more energy-saving and environmentally friendly.

[0045] See also Figure 1 and Figure 6 In this embodiment, a first sealing sleeve 25 is fixedly installed on the inner wall of the fixed plate 2, the outer wall of the screw rod 7 is rotatably connected to the inner wall of the first sealing sleeve 25, a second sealing sleeve 26 is fixedly installed on the inner wall of the fixed tube 9, and the outer wall of the rotating rod 14 is rotatably connected to the inner wall of the second sealing sleeve 26.

[0046] The first sealing sleeve 25 is used to ensure the sealing effect of the bag filter, so that the dust to be filtered is not easy to enter the upper part of the fixed plate 2.

[0047] It is worth noting that in order to make the bag filter more widely applicable, the present application also provides a second embodiment, such as Figure 7 As shown:

[0048] The component driving the screw rod 7 to rotate is set to be a motor 31. In this way, when the suction force generated in the actual application scenario of the bag dust collector is insufficient, the driving component can be replaced by the motor 31. The motor 31 drives the screw rod 7 to rotate, thereby achieving the effect of moving the cleaning strip 28, and the cleaning effect of the filter bag 4 can also be guaranteed.

[0049] When the present embodiment is in use, when the bag filter body 1 is performing dust removal normally, the suction force generated by the suction fan 21 will adsorb the dust entering the bag filter body 1 through the fixed pipe 9 and the connecting pipe 17, and the large dust particles will be filtered by the filter bag 4, and the purified gas will be discharged through the exhaust pipe 23. Under the suction force of the suction fan 21, the driving blade 11 will rotate, thereby rotating the rotating rod 14 through the first bevel gear ring 12 and the first bevel gear 13, and then rotating the screw rod 7 through the second bevel gear ring 15 and the second bevel gear 16. When the screw rod 7 rotates, the movable plate 29 will move upward, and then the outer wall of the filter bag 4 can be preliminarily scraped through the cleaning strip 28 to reduce the dust adsorbed on the surface of the filter bag 4.

[0050] When the bag collector body 1 is being cleaned, the pulse back-blowing machine 19 is started and the solenoid valve 24 is closed at the same time. The pulse back-blowing machine 19 blows external high-pressure gas into the interior of the fixed tube 9, and then back-blows toward the filter bag 4 through the nozzle 18, thereby stripping the dust on the surface of the filter bag 4. In this process, the high-pressure gas will cause the driving blade 11 to rotate in the opposite direction when passing through the fixed tube 9, thereby causing the screw rod 7 to rotate in the opposite direction, and then causing the cleaning strip 28 to scrape downward along the surface of the filter bag 4. The cleaning strip 28 cooperates with the pulse back-blowing to effectively clean the dust on the surface of the filter bag 4 without easily affecting the service life of the filter bag 4, thereby greatly improving the practicality of the device.

[0051] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0052] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A dust cleaning device for a bag filter, comprising a bag filter body (1), characterized in that: A fixing plate (2) is fixedly mounted on the inner wall of the bag filter body (1), a plurality of bag cages (3) are fixedly mounted on the inner wall of the fixing plate (2), a filter bag (4) is mounted on the outer wall of the bag cage (3), a pulse backflush assembly and a dust suction assembly are arranged inside the bag filter body (1), and a cleaning assembly for cleaning dust is arranged inside the bag filter body (1); The cleaning assembly comprises two mounting blocks (6) fixedly mounted on the inner wall of the bag filter body (1); a screw rod (7) is rotatably mounted on the top of one mounting block (6); a slide rod (8) is fixedly mounted on the top of the other mounting block (6); a threaded block (27) is threadedly mounted on the surface of the screw rod (7); a slider (30) is slidably mounted on the surface of the slider (8); a movable plate (29) is fixedly mounted between the threaded block (27) and the slider (30); a plurality of cleaning strips (28) adapted to the filter bag (4) are fixedly mounted on the inner wall of the movable plate (29); and a driving assembly for driving the screw rod (7) to rotate is also provided inside the bag filter body (1).

2. The dust cleaning device for a bag filter according to claim 1, characterized in that: The surface of the movable plate (29) is provided with a plurality of slots, and the cleaning strip (28) is fixedly mounted on the inner wall of the slots, and the inner wall of the cleaning strip (28) is in contact with the outer wall of the filter bag (4).

3. The dust cleaning device for a bag filter according to claim 1 is characterized in that: A ventilation plate (5) is fixedly mounted on the inner wall of the bag filter body (1) and located above the fixed plate (2), and a fixed pipe (9) is fixedly mounted on the top of the ventilation plate (5).

4. The dust cleaning device for a bag filter according to claim 3 is characterized in that: The pulse back-blowing assembly comprises a pulse back-blowing blower (19) fixedly mounted on the outer wall of the bag filter body (1); the output end of the pulse back-blowing blower (19) is fixedly mounted on a blowing pipe (20) connected to a fixed pipe (9); and a plurality of nozzles (18) are fixedly mounted at the bottom of the ventilation plate (5) and above the bag cage (3).

5. The dust cleaning device for a bag filter according to claim 3 is characterized in that: The dust suction assembly comprises a suction fan (21) fixedly mounted on the inner wall of the bag dust collector body (1); an air suction pipe (22) connected to a fixed pipe (9) is fixedly mounted on the input end of the suction fan (21); a solenoid valve (24) is fixedly mounted on the surface of the air suction pipe (22); an exhaust pipe (23) extending to the outside of the bag dust collector body (1) is fixedly mounted on the output end of the suction fan (21); and a plurality of connecting pipes (17) for air suction are fixedly mounted on the bottom of the ventilation plate (5).

6. The dust cleaning device for a bag filter according to claim 3, characterized in that: The driving assembly comprises a rotating shaft (10) rotatably mounted on the top wall of the fixed tube (9), a driving blade (11) being mounted at the bottom of the rotating shaft (10), a first conical gear ring (12) being fixedly mounted on the surface of the rotating shaft (10), a rotating rod (14) extending into the interior of the fixed tube (9) being rotatably mounted on the inner wall of the bag filter body (1), a first conical gear (13) meshing with the first conical gear ring (12) being fixedly mounted on one end of the rotating rod (14) located inside the fixed tube (9), a second conical gear ring (15) being fixedly mounted on the surface of the rotating rod (14), the top end of the screw rod (7) extending above the ventilation plate (5), the top end of the screw rod (7) being fixedly mounted with a second conical gear (16) meshing with the second conical gear ring (15).

7. The dust cleaning device for a bag filter according to claim 1, characterized in that: A first sealing sleeve (25) is fixedly mounted on the inner wall of the fixed plate (2), and the outer wall of the screw rod (7) is rotatably connected to the inner wall of the first sealing sleeve (25).

8. The dust cleaning device for a bag filter according to claim 6, characterized in that: A second sealing sleeve (26) is fixedly mounted on the inner wall of the fixed tube (9), and the outer wall of the rotating rod (14) is rotatably connected to the inner wall of the second sealing sleeve (26).

Images