Ash removal structure of bag-type dust collector

Abstract

The utility model discloses a dust cleaning structure of a bag-type dust collector, which belongs to the technical field of bag-type dust collectors and comprises a dust collector shell, a blowing mechanism is arranged on the dust collector shell, and a support plate is fixedly sleeved in an inner cavity of the dust collector shell. According to the dust filtering device, when the dust filtering cloth bag is used for filtering dust-containing gas, the servo motor is used for driving the straight gear to rotate, the straight gear and the outer gear ring are meshed to drive the outer gear ring to rotate, the outer gear ring drives the vertical rod, the transverse rod, the first brush and the second brush to rotate, the first brush is used for brushing the side portion of the dust filtering cloth bag, and the second brush is used for brushing the side portion of the dust filtering cloth bag. The second brush is used for brushing the bottom of the dust filtering cloth bag, so that dust on the dust filtering cloth bag is treated when dusty gas is treated, the filtering effect of the dust filtering cloth bag is guaranteed, meanwhile, the number of motors is reduced, and the production cost is reduced.

Description

Technical Field

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

[0002] A baghouse dust collector is a device used to remove particulate matter from industrial exhaust gases. It is widely used in many industries, such as manufacturing, chemical, and power generation. Its working principle involves using a series of filter bags to trap particulate matter in the gas on their surface, while clean gas passes through. During operation, dust particles adhere to the surface of the filter bags, affecting the normal operation of the baghouse dust collector. Therefore, it is necessary to clean the outside of the filter bags frequently.

[0003] A search revealed that utility model patent CN221933400U discloses an automatic dust removal structure for a baghouse dust collector, including a tower body, an air inlet, an air outlet, a dust collection funnel, a partition, a bag cage, a filter bag, a vertical pole, a dust removal ring, a sliding rod, a motor, a dust removal beater, and an eccentric wheel. A partition is fixedly installed on the upper part of the tower body, and a bag cage is welded to the lower end of the partition. A filter bag is fitted over the bag cage. A vertical pole is welded to the lower end of the partition, and a dust removal ring is welded to one side of the vertical pole. This patent utilizes a circumferential arrangement of the sliding rod, dust removal beater, and motor. The operator starts the motor via a control panel, which drives the eccentric wheel to rotate. Under the action of the eccentric wheel, the sliding rod slides back and forth, thereby driving the dust removal beater to continuously reciprocate, beating the filter bag and causing the dust to fall off. Because the sliding rod, dust removal beater, and motor are arranged in a circumferential manner, a good dust removal effect can be achieved without stopping the machine. However, the aforementioned patents have the following shortcomings: the number of motors used for tapping and dust removal is relatively large, resulting in high production costs. Furthermore, since the filter bags are fitted outside the filter cage, the internal filter cage supports the bags during tapping, leading to less vibration and poor dust removal efficiency. Therefore, we propose a dust removal structure for a baghouse dust collector. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a dust removal structure for a bag filter.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A dust removal structure for a baghouse dust collector includes a dust collector housing with a jet-blowing mechanism. A support plate is fixedly fitted into the inner cavity of the dust collector housing. The support plate has multiple air vents. An annular cage is fixedly connected to the bottom surface of the support plate, below each air vent. A filter bag is fitted onto the outer side of the annular cage. Multiple sets of connecting columns are fixedly connected to the bottom surface of the support plate. A circular seat is fixedly connected to the bottom end of each set of connecting columns. The circular seat is fitted onto the outer side of the top of the filter bag. A rotating groove is provided on the bottom surface of the circular seat. An external gear ring is rotatably connected to the inner cavity of the circular seat. A servo motor is fixedly mounted on the top surface of the circular seat. The output shaft of the servo motor extends into the inner cavity of the circular seat and is fixedly fitted with a spur gear. The spur gear and the external gear ring mesh with each other. A vertical rod is fixedly connected to the bottom surface of the external gear ring. The bottom end of the vertical rod extends to the bottom of the circular seat and is fixedly connected to a horizontal rod. A second brush is provided on the top surface of the horizontal rod. The top end of the second brush contacts the bottom surface of the dust filter bag. A first brush is provided on the side of the vertical rod. The end of the first brush contacts the side of the dust filter bag.

[0007] As a preferred embodiment of this utility model, the blowing mechanism includes two electric push rods fixedly installed on the top of the dust collector housing and a pulse solenoid valve fixedly installed on the side of the dust collector housing. The output ends of the two electric push rods extend into the inner cavity of the dust collector housing and are fixedly connected to a blowing duct network. Multiple nozzles are fixedly connected to the bottom surface of the blowing duct network. The nozzles and vent holes are arranged concentrically. A sealing plate is fixedly sleeved on the side of each nozzle. The output end of the pulse solenoid valve extends into the inner cavity of the dust collector housing and is fixedly connected to a duct guide. The end of the duct guide is fixedly sleeved into the inner cavity of the blowing duct network.

[0008] As a preferred embodiment of this utility model, a control panel is fixedly installed on the side of the dust collector housing, and the control panel is electrically connected to the electric push rod, the pulse solenoid valve, and the servo motor respectively.

[0009] As a preferred embodiment of this utility model, an air inlet pipe is fixedly sleeved on the side of the dust collector shell, an exhaust pipe is fixedly sleeved on the top of the dust collector shell, and a dust discharge valve is fixedly installed on the bottom of the dust collector shell.

[0010] As a preferred embodiment of this utility model, a sealing door is hinged to the front of the dust collector housing.

[0011] As a preferred embodiment of this utility model, a support frame is fixedly sleeved on the side of the dust collector shell, and multiple support legs are fixedly connected to the bottom surface of the support frame.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, when the dust filter bag is used to filter dust-laden gas, the servo motor drives the spur gear to rotate. The meshing between the spur gear and the external gear ring drives the external gear ring to rotate. The external gear ring drives the vertical rod, horizontal rod, first brush and second brush to rotate. The first brush brushes the side of the dust filter bag and the second brush brushes the bottom of the dust filter bag. This is to treat the dust on the dust filter bag when treating the dust-laden gas, to ensure the filtration effect of the dust filter bag, and at the same time reduce the number of motors and reduce production costs.

[0014] (2) In this utility model, when the dust collector is not used for dust removal, the first brush and the second brush are used to clean the outside of the filter bag. At the same time, the electric push rod drives the blowing pipe network and the nozzle to move down, so that the bottom end of the nozzle extends into the inner cavity of the vent hole. The pulse solenoid valve is opened so that the gas in the compressed air storage tank enters the blowing pipe network from the air guide hose, and the gas in the blowing pipe network blows the inner cavity of the filter bag from the nozzle, thereby back-blowing the inner cavity of the filter bag to clean the dust off the filter bag and ensure the dust removal effect of the filter bag. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the dust collector casing of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the annular seat of this utility model;

[0019] Figure 5 This is a bottom view of the annular base of this utility model;

[0020] Figure 6 This is a schematic diagram of the air blowing duct network of this utility model;

[0021] Figure 7 This utility model Figure 5 Enlarged diagram of point A in the diagram.

[0022] The following are the labels in the diagram: 1. Dust collector casing; 2. Support plate; 3. Vent hole; 4. Pulse blowing mechanism; 5. Annular cage; 6. Filter bag; 7. Connecting column; 8. Circular seat; 9. Rotary groove; 10. External gear ring; 11. Servo motor; 12. Spur gear; 13. Vertical rod; 14. Horizontal rod; 15. First brush; 16. Second brush; 17. Electric push rod; 18. Pulse solenoid valve; 19. Air blowing duct network; 20. Nozzle; 21. Sealing plate; 22. Air guide hose; 23. Air inlet pipe; 24. Exhaust pipe; 25. Dust discharge valve; 26. Sealing door; 27. Support frame; 28. Support leg; 29. ​​Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figure 1-7A dust removal structure for a baghouse dust collector includes a dust collector housing 1, a jet cleaning mechanism 4 mounted on the housing 1, a support plate 2 fixedly fitted inside the housing 1, multiple air vents 3 on the support plate 2, and annular cage frames 5 fixedly connected to the bottom surface of the support plate 2 below the air vents 3. Filter bags 6 are fitted onto the outer side of the annular cage frames 5. Multiple sets of connecting columns 7 are fixedly connected to the bottom surface of the support plate 2, and circular seat 8 is fixedly connected to the bottom end of each set of connecting columns 7. The circular seat 8 is fitted onto the outer side of the top of the filter bags 6, and a rotating groove 9 is provided on the bottom surface of the circular seat 8. The inner cavity of the circular seat 8 rotates... An external gear ring 10 is dynamically connected. A servo motor 11 is fixedly installed on the top surface of the ring seat 8. The output shaft of the servo motor 11 extends into the inner cavity of the ring seat 8 and is fixedly sleeved with a spur gear 12. The spur gear 12 and the external gear ring 10 mesh with each other. A vertical rod 13 is fixedly connected to the bottom surface of the external gear ring 10. The bottom end of the vertical rod 13 extends to the bottom of the ring seat 8 and is fixedly connected to a horizontal rod 14. A second brush 16 is provided on the top surface of the horizontal rod 14. The top end of the second brush 16 contacts the bottom surface of the dust filter bag 6. A first brush 15 is provided on the side of the vertical rod 13. The end of the first brush 15 contacts the side of the dust filter bag 6.

[0028] In this embodiment, a compression ring is provided at the top of the dust filter bag 6, and the dust filter bag 6 is installed on the outside of the annular cage 5 by the pressure of the compression ring.

[0029] For details, please refer to Figure 1 , Figure 2 and Figure 6 The blowing mechanism 4 includes two electric push rods 17 fixedly installed on the top of the dust collector housing 1 and a pulse solenoid valve 18 fixedly installed on the side of the dust collector housing 1. The output ends of the two electric push rods 17 extend into the inner cavity of the dust collector housing 1 and are fixedly connected to the blowing duct network 19. Multiple nozzles 20 are fixedly connected to the bottom surface of the blowing duct network 19. The nozzles 20 and the vent holes 3 are arranged concentrically. The side of the nozzles 20 is fixedly sleeved with a sealing plate 21. The output end of the pulse solenoid valve 18 extends into the inner cavity of the dust collector housing 1 and is fixedly connected to the air guide hose 22. The end of the air guide hose 22 is fixedly sleeved into the inner cavity of the blowing duct network 19.

[0030] In this embodiment, the outer diameter of the sealing plate 21 is larger than the inner diameter of the vent hole 3, ensuring that the sealing plate 21 can block the top of the vent hole 3. In addition, the input end of the pulse solenoid valve 18 is connected to the external compressed air storage tank.

[0031] For details, please refer to Figures 1 to 4 A control panel 29 is fixedly installed on the side of the dust collector housing 1. The control panel 29 is electrically connected to the electric push rod 17, the pulse solenoid valve 18, and the servo motor 11.

[0032] In this embodiment, the electric push rod 17, the pulse solenoid valve 18, and the servo motor 11 are controlled by the control panel 29, and the control panel 29, the electric push rod 17, the pulse solenoid valve 18, and the servo motor 11 are powered by an external power source.

[0033] For details, please refer to Figure 1 An air inlet pipe 23 is fixedly sleeved on the side of the dust collector housing 1, an exhaust pipe 24 is fixedly sleeved on the top of the dust collector housing 1, and a dust discharge valve 25 is fixedly installed on the bottom of the dust collector housing 1.

[0034] In this embodiment, the gas containing dust is introduced into the inner cavity of the dust collector housing 1 through the air inlet pipe 23, the gas after dust removal is discharged through the exhaust pipe 24, and the filtered dust is discharged through the dust discharge valve 25.

[0035] For details, please refer to Figure 1 The dust collector housing 1 has a sealing door 26 hinged to the front.

[0036] In this embodiment, the inner cavity of the dust collector housing 1 is repaired by opening the sealing door 26, and the filter bag 6 is replaced at the same time.

[0037] For details, please refer to Figure 1 A support frame 27 is fixedly fitted to the side of the dust collector housing 1, and multiple support legs 28 are fixedly connected to the bottom surface of the support frame 27.

[0038] In this embodiment, the dust collector housing 1 is supported by the support frame 27 and the support leg 28.

[0039] Working Principle: During operation, dust-laden gas is first introduced into the inner cavity of the dust collector housing 1 through the inlet pipe 23. Multiple filter bags 6 filter the gas, and the filtered gas enters the upper part of the inner cavity of the dust collector housing 1 through the vent holes 3 and exits through the exhaust pipe 24. Part of the filtered dust accumulates on the outside of the filter bags 6, while the rest falls to the bottom of the inner cavity of the dust collector housing 1. During the dust filtration process, multiple servo motors 11 are periodically activated using the control panel 29. These servo motors 11 drive spur gears 12 to rotate, and the meshing transmission between the spur gears 12 and the external gear ring 10 drives the external gear ring 10 to rotate. The external gear ring 10 then drives the vertical rod 13, horizontal rod 14, first brush 15, and second brush 16 to rotate. The first brush 15 brushes the sides of the filter bags 6, and the second brush 16 brushes the sides of the filter bags 6. The bottom of the filter bag 6 is brushed to remove the dust filtered from it, ensuring the filter bag 6's filtration efficiency. Then, when the dust collector is not in use, the first brush 15 and the second brush 16 are used again to clean the filter bag 6. At the same time, the electric push rod 17 is activated to move the air blowing network 19 and the nozzle 20 downward, so that the bottom end of the nozzle 20 extends into the inner cavity of the vent 3, and the bottom surface of the sealing plate 21 is in contact with the top of the inner cavity of the vent 3, so that the sealing plate 21 can block the top of the vent 3. Finally, the pulse solenoid valve 18 is opened to allow the gas in the compressed air storage tank to enter the air blowing network 19 from the air guide hose 22, and the gas in the air blowing network 19 blows the inner cavity of the filter bag 6 from the nozzle 20, thereby back-blowing the inner cavity of the filter bag 6 to remove the dust from the filter bag 6.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A dust cleaning structure of a bag-type dust collector comprising a dust collector housing (1), characterized in that: The dust collector housing (1) is provided with a jet cleaning mechanism (4). A support plate (2) is fixedly sleeved in the inner cavity of the dust collector housing (1). The support plate (2) is provided with multiple air vents (3). An annular cage (5) is fixedly connected to the bottom surface of the support plate (2) and below the air vents (3). A filter bag (6) is sleeved on the outer side of the annular cage (5). Multiple sets of connecting columns (7) are fixedly connected to the bottom surface of the support plate (2). A circular seat (8) is fixedly connected to the bottom end of each set of connecting columns (7). The circular seat (8) is sleeved on the outer side of the top of the filter bag (6). A rotating groove (9) is provided on the bottom surface of the circular seat (8). An external toothed ring (10) is rotatably connected to the inner cavity of the circular seat (8). A servo motor (11) is fixedly installed on the top surface of the ring seat (8). The output shaft of the servo motor (11) extends into the inner cavity of the ring seat (8) and is fixedly sleeved with a spur gear (12). The spur gear (12) meshes with the external gear ring (10). A vertical rod (13) is fixedly connected to the bottom surface of the external gear ring (10). The bottom end of the vertical rod (13) extends to the bottom of the ring seat (8) and is fixedly connected with a horizontal rod (14). A second brush (16) is provided on the top surface of the horizontal rod (14). The top end of the second brush (16) contacts the bottom surface of the dust filter bag (6). A first brush (15) is provided on the side of the vertical rod (13). The end of the first brush (15) contacts the side of the dust filter bag (6).

2. The ash removal structure of a cloth bag dust collector according to claim 1, characterized in that: The blowing mechanism (4) includes two electric push rods (17) fixedly installed on the top of the dust collector housing (1) and a pulse solenoid valve (18) fixedly installed on the side of the dust collector housing (1). The output ends of the two electric push rods (17) extend into the inner cavity of the dust collector housing (1) and are fixedly connected to the blowing pipe network (19). Multiple nozzles (20) are fixedly connected to the bottom surface of the blowing pipe network (19). The nozzles (20) and the vent holes (3) are arranged concentrically. A sealing plate (21) is fixedly sleeved on the side of the nozzles (20). The output end of the pulse solenoid valve (18) extends into the inner cavity of the dust collector housing (1) and is fixedly connected to the air guide hose (22). The end of the air guide hose (22) is fixedly sleeved into the inner cavity of the blowing pipe network (19).

3. The dust cleaning structure of a cloth bag dust collector according to claim 2, characterized in that: A control panel (29) is fixedly installed on the side of the dust collector housing (1). The control panel (29) is electrically connected to the electric push rod (17), the pulse solenoid valve (18), and the servo motor (11).

4. The dust cleaning structure of a cloth bag dust collector according to claim 1, characterized in that: An air inlet pipe (23) is fixedly sleeved on the side of the dust collector housing (1), an exhaust pipe (24) is fixedly sleeved on the top of the dust collector housing (1), and a dust discharge valve (25) is fixedly installed on the bottom of the dust collector housing (1).

5. The dust cleaning structure of a cloth bag dust collector according to claim 1, characterized in that: The dust collector housing (1) is hinged to a sealing door (26) on the front.

6. The ash removal structure of a cloth bag dust collector according to claim 1, characterized in that: A support frame (27) is fixedly sleeved on the side of the dust collector housing (1), and a plurality of support legs (28) are fixedly connected to the bottom surface of the support frame (27).

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