Dust filter bag replacement device and method

Abstract

The application provides a dust filter bag replacing device and a replacing method thereof. The dust filter bag replacing device comprises an outer clamping part, the outer clamping part comprising a first outer clamping piece and a second outer clamping piece, the second outer clamping piece being an arc-shaped plate and the two ends of the second outer clamping piece being connected with a first connecting plate, a telescopic mechanism being connected between the first outer clamping piece and the first connecting plate; an inner clamping part, the inner clamping part comprising a first inner clamping piece and a second inner clamping piece, the first inner clamping piece being connected with a first guide rod near one side of the second inner clamping piece, the second inner clamping piece being an arc-shaped plate and the inner walls of the second inner clamping piece being connected with a second connecting plate, the first guide rod being slidably arranged on the first connecting plate and the second connecting plate, and a first spring being sleeved on the first guide rod at a position between the first inner clamping piece and the first connecting plate; and a telescopic mechanism being connected between the first outer clamping piece and the first connecting plate. The application can improve the efficiency of filter bag disassembly and reduce the risk of artificial injury.

Description

Technical Field

[0001] This invention relates to the field of dust collector technology, and in particular to a dust collector filter bag replacement device and replacement method. Background Technology

[0002] Currently, in the spray drying industry, baghouse dust collectors are commonly used for dust removal due to the excellent chemical stability and heat resistance of filter bags. These dust collectors include a tube sheet with multiple mounting holes, into which the filter bags are installed. However, filter bags are consumables and require regular maintenance, cleaning, or replacement. Currently, filter bag replacement relies primarily on manual labor, which is cumbersome and time-consuming, increasing machine downtime and impacting machine operation and production efficiency, ultimately failing to meet production demands. Summary of the Invention

[0003] In view of the above, the present invention provides a dust collector filter bag replacement device and method, which can solve the problems of cumbersome replacement process, long time and low efficiency when replacing filter bags manually.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is to provide a dust collector filter bag replacement device, wherein the filter bag is installed in the mounting hole through the dust collector filter bag replacement device, and the dust collector filter bag replacement device is blocked on the tube sheet, comprising:

[0005] The outer clamping part includes a first outer clamping member for fitting against the outer wall of the filter bag opening and a second outer clamping member for being clamped onto the filter bag opening and fitting against the outer wall of the filter bag opening. The second outer clamping member is an arc-shaped plate and a first connecting plate is connected between the two ends of the second outer clamping member. The first outer clamping member and the second outer clamping member are arranged opposite to each other.

[0006] An inner clamping part is provided corresponding to the outer clamping part. The inner clamping part includes a first inner clamping member and a second inner clamping member that are disposed opposite to each other and fit against the inner wall of the filter bag opening. A first guide rod is connected to the side of the first inner clamping member close to the second inner clamping member. The second inner clamping member is an arc-shaped plate and a second connecting plate is connected between the inner walls of the second inner clamping member. The first guide rod slides through the first connecting plate and the second connecting plate, and a first spring is sleeved on the first guide rod at the position between the first inner clamping member and the first connecting plate.

[0007] A telescopic mechanism is connected between the first external clamping member and the first connecting plate. The telescopic mechanism includes a rack fixed to the first external clamping member, a gear meshing with the rack, and a drive mechanism for driving the gear to rotate. The drive mechanism is connected to the first connecting plate, and the rack is located above the first connecting plate.

[0008] Preferably, the drive mechanism includes a socket ratchet wrench, a rotating shaft connected between the socket ratchet wrench and the gear, and a bearing mounting box. The bearing mounting box is fixed to the first connecting plate, and the bearing mounting box has a through hole for the rotating shaft to pass through.

[0009] Preferably, a bearing connected to the rotating shaft is installed in the through hole.

[0010] Preferably, a guide rail is fixed on the top surface of the first connecting plate, a slider is slidably mounted on the guide rail, and the rack is fixed on the slider.

[0011] Preferably, the first connecting plate and the second connecting plate are respectively provided with a first opening, the first guide rod passes through the first opening, and the end of the first guide rod is provided with a stop block for blocking the second connecting plate on the side away from the first connecting plate.

[0012] Preferably, the first connecting plate has U-shaped grooves at both ends corresponding to the inner side of the second outer clamping member for engaging the filter bag opening.

[0013] Preferably, guide posts are symmetrically connected to the side of the first connecting plate away from the second outer clamping member, and the guide posts are telescopically connected to the first connecting plate.

[0014] Preferably, the guide post is provided with a second guide rod, which slides through the first connecting plate, and a second spring is sleeved on the second guide rod.

[0015] Preferably, the guide post is a cylinder, the second guide rod is a square post, the second guide rod is connected to the side wall of the guide post, the first connecting plate is provided with a second opening, the second guide rod slides through the second opening, and the second opening matches the second guide rod.

[0016] Preferably, the first inner clamping member is an arc-shaped plate.

[0017] Preferably, the first connecting plate is provided with a handle at the top.

[0018] This invention provides a method for replacing dust collector filter bags using a dust collector filter bag replacement device, comprising the following steps:

[0019] The drive mechanism drives the gear to rotate in the forward direction. The gear drives the rack to move inward, and drives the first outer clamping member and the first inner clamping member to retract inward, so that the first spring is compressed until the filter bag opening is deformed.

[0020] Lift the dust collector filter bag replacement device upwards until the filter bag is completely removed from the mounting hole;

[0021] The drive mechanism drives the gear to rotate in the opposite direction, the gear drives the rack to move outward, and drives the first outer clamping member to move outward. The first spring returns to its original state and drives the first inner clamping member to move outward until a gap is formed between the edge of the filter bag opening and the first outer clamping member, and the filter bag is removed from the dust removal filter bag replacement device.

[0022] A new filter bag is provided, and the opening of the new filter bag is clamped onto the second outer clamp and attached to the outer wall of the opening of the new filter bag. The first inner clamp and the second inner clamp are respectively attached to the inner wall of the opening of the filter bag. The drive mechanism drives the gear to rotate forward, and the gear drives the rack to move inward, and drives the first outer clamp to retract inward until the first outer clamp is attached to the outer wall of the opening of the new filter bag. The drive mechanism further drives the gear to rotate forward until the opening of the new filter bag is deformed.

[0023] Place the new filter bag into the mounting hole and block the dust collector filter bag replacement device on the tube sheet. Drive the gear to rotate in the opposite direction through the drive mechanism. The gear drives the rack to move outward and drives the first outer clamping member to move outward. The first spring returns to its original state and drives the first inner clamping member to move outward until the opening edge of the new filter bag is deformed and restored.

[0024] The beneficial effects of this invention are as follows: The dust collector filter bag replacement device and method of this invention, when removing the filter bag from the tube sheet, uses inner and outer clamping parts to clamp the filter bag opening. The retraction of the telescopic mechanism deforms the filter bag opening, making the filter bag diameter smaller than the opening size of the tube sheet, thereby separating the filter bag from the tube sheet. The filter bag is then removed upwards from the mounting hole. The telescopic mechanism then returns to its original position, restoring the deformation of the filter bag opening. This process continues until the inner and outer clamping parts no longer clamp the filter bag, allowing it to be removed from the device. The above steps are repeated to clamp and deform a new filter bag, which is then placed into the mounting hole on the tube sheet. Finally, the new filter bag is restored to its original position, completing the installation of the new filter bag. This invention improves the efficiency of filter bag installation and removal and reduces the risk of human injury. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the dust collector filter bag replacement device of the present invention.

[0027] Figure 2This is a schematic diagram of the dust removal filter bag replacement device of the present invention installed on the filter bag.

[0028] Figure 3 This is an enlarged structural schematic diagram of the inner clamping part and the outer clamping part of the dust collector filter bag replacement device of the present invention.

[0029] Figure 4 This is a top view schematic diagram of the dust removal filter bag replacement device of the present invention.

[0030] Figure 5 This is a schematic diagram of the guide column of the dust collector filter bag replacement device of the present invention.

[0031] The correspondence between the reference numerals and components in the attached drawings is as follows:

[0032] 1-Filter bag; 2-First external clamping component; 3-Second external clamping component; 301-First connecting plate; 302-U-shaped groove; 303-Handle; 4-First internal clamping component; 5-Second internal clamping component; 501-Second connecting plate; 6-First guide rod; 7-First spring; 8-Guide post; 9-Second spring; 10-Rack; 11-Gear; 12-Bolt; 13-Second guide rod; 14-Guide rail; 15-Rotating shaft; 16-Ratchet wrench body; 17-Socket; 18-Bearing mounting box; 19-Bearing. Detailed Implementation

[0033] To facilitate understanding of the present invention, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0034] Please see Figures 1 to 5 This invention provides a dust collector filter bag replacement device. The filter bag 1 is installed in a mounting hole via the dust collector filter bag replacement device, which is supported by a tube sheet and includes an outer clamping part and an inner clamping part for holding the filter bag 1. Wherein:

[0035] The outer clamping part includes a first outer clamping member 2 for fitting against the outer wall of the opening of the filter bag 1, and a second outer clamping member 3 for being clamped on the opening of the filter bag 1 and fitting against the outer wall of the opening of the filter bag 1. The second outer clamping member 3 is an arc-shaped plate and a first connecting plate 301 is connected between the two ends of the second outer clamping member 3. The first outer clamping member 2 and the second outer clamping member 3 are arranged opposite to each other.

[0036] The inner clamping part is provided corresponding to the outer clamping part, such as Figures 1-3 As shown, the inner clamping part includes a first inner clamping member 4 and a second inner clamping member 5, which are disposed opposite to each other and are designed to fit against the inner wall of the opening of the filter bag 1. Figure 3As shown, a first guide rod 6 is connected to the side of the first inner clamping member 4 near the second inner clamping member 5. The second inner clamping member 5 is an arc-shaped plate and a second connecting plate 501 is connected between the inner walls of the second inner clamping member 5. The outer wall of the second inner clamping member 5 is used to fit against the inner wall of the opening of the filter bag 1. The first guide rod 6 slides through the first connecting plate 301 and the second connecting plate 501, and a first spring 7 is sleeved on the position of the first guide rod 6 between the first inner clamping member 4 and the first connecting plate 301. The first end of the first spring 7 is connected to the first inner clamping member 4, and the second end of the first spring 7 is connected to the first connecting plate 301.

[0037] A telescopic mechanism is connected between the first outer clamping member 2 and the first connecting plate 301. For example... Figures 1-4 As shown, the telescopic mechanism includes a rack 10 fixed to the first outer clamping member 2, a gear 11 meshing with the rack 10, and a drive mechanism that drives the gear 11 to rotate. The drive mechanism is connected to the first connecting plate 301, and the rack 10 is located above the first connecting plate 301. The drive mechanism drives the gear 11 to rotate and causes the rack 10 to move back and forth. The movement of the rack 10 causes the first outer clamping member 2 to move.

[0038] The filter bag 1 is installed in the mounting hole in the tube sheet. The inner and outer clamping parts are installed on the opening of the filter bag 1. The rack 10 drives the first outer clamping part 2 and the first inner clamping part 4 to retract towards the inside of the opening of the filter bag 1. The first spring 7 is compressed and applies an outward force to the first inner clamping part 4, thereby clamping the edge of the filter bag 1 with the first outer clamping part 2 and the first inner clamping part 4, and causing the filter bag 1 at this position to retract and deform inward, so that the filter bag 1 is removed from the tube sheet. Then the rack 10 is moved away from the inside of the opening of the filter bag 1, and the first outer clamping part 2 is moved outward. At the same time, the first spring 7 is reset and still applies an outward force to the first inner clamping part 4, so that the first outer clamping part 2 and the first inner clamping part 4 still clamp the opening of the filter bag. The process is repeated until a gap is formed between the edge of the opening of the filter bag 1 and the first outer clamping part 2, that is, the first outer clamping part 2 and the first inner clamping part 4 no longer clamp the edge of the opening of the filter bag 1, thereby removing the filter bag 1 from the device.

[0039] In a preferred embodiment, the drive mechanism includes a socket ratchet wrench, a rotating shaft 15 connected between the socket ratchet wrench and the gear 11, and a bearing mounting box 18. The bearing mounting box 18 is fixed to the first connecting plate 301, and a through hole is provided on the bearing mounting box 18 for the rotating shaft 15 to pass through. The rotating shaft 15 is fixed above the first connecting plate 301 via the bearing mounting box 18. The socket ratchet wrench includes a ratchet wrench body 16 and a socket 17. The first end of the rotating shaft 15 is fixed to the socket 17, and the second end of the rotating shaft 15 is mounted on the gear 11. The rotating shaft 15 is rotated by rotating the handle of the socket ratchet wrench. The ratchet wrench body 16 can rotate in both directions, and its rotation direction can be changed by moving a lever on the ratchet wrench body 16.

[0040] Adjust the ratchet lever to rotate the ratchet wrench body 16 in the forward direction, which in turn drives the gear 11 to rotate in the forward direction, so that the rack 10 moves inward; then adjust the ratchet lever to rotate the ratchet wrench body 16 in the reverse direction, which in turn drives the gear 11 to rotate in the reverse direction, so that the rack 10 moves outward.

[0041] As a preferred embodiment, a bearing 19 connected to the rotating shaft 15 is installed in the through hole, and the rotation accuracy is ensured by the bearing 19.

[0042] As a preferred implementation method, such as Figure 3 As shown, a guide rail 14 is connected to the top surface of the first connecting plate 301. The guide rail 14 is a linear guide rail, and a slider is slidably mounted on the guide rail 14. A rack 10 is fixed to the slider. The first end of the rack 10 is bolted to the first outer clamping member 2, and the second end of the rack 10 slides linearly along the guide rail 14 via the slider.

[0043] As a preferred implementation method, such as Figure 3 As shown, the first connecting plate 301 and the second connecting plate 501 have corresponding first openings. The first guide rod 6 slides through the first opening, and the end of the first guide rod 6 is provided with a first stop block for blocking the second connecting plate 501 on the side away from the first connecting plate 301. The first end of the first guide rod 6 is fixed to the first inner clamping member 4, and the end of the second end of the first guide rod 6 has an internal threaded hole. The first stop block is a bolt 12, which is screwed into the internal threaded hole, and the diameter of the bolt head is larger than the diameter of the first opening. The first stop block limits the sliding of the first guide rod 6 and prevents the first guide rod 6 from sliding out of the first spring 7.

[0044] As a preferred implementation method, such as Figure 1 As shown, the first connecting plate 301 has U-shaped grooves 302 at both ends corresponding to the inner side of the second outer clamping member 3, which are respectively provided for the filter bag 1 to be engaged. The opening of the U-shaped groove 302 is engaged with the opening of the filter bag 1. Preferably, the first connecting plate 301 is a trapezoidal plate without a bottom plate. The waists on both sides of the trapezoidal plate extend outward to form U-shaped grooves 302. The upper bottom plate of the trapezoidal plate is arranged away from the second outer clamping member 3. The first guide rod 6 slides through the upper bottom plate of the first connecting plate 301.

[0045] In a preferred embodiment, guide posts 8 are symmetrically connected to the side of the first connecting plate 301 away from the second outer clamping member 3. The guide posts 8 are telescopically connected to the first connecting plate 301. The guide posts 8 assist the filter bag 1 in restoring its shape during deformation. When the filter bag 1 is compressed and deformed, the circle becomes concave, and the guide posts 8 are also compressed. When the filter bag 1 is restored to its original shape, the guide posts 8 extend and abut against the inner wall of the opening of the filter bag 1, causing it to move outward to assist the filter bag 1 in restoring its shape. Without the guide posts 8 on both sides, small concavities are likely to form on both sides of the filter bag 1.

[0046] As a preferred implementation method, such as Figure 5 As shown, a second guide rod 13 is provided on the guide post 8. The second guide rod 13 slides through the first connecting plate 301. A second spring 9 is sleeved on the second guide rod 13. The first end of the second spring 9 is connected to the guide post 8, and the second end of the second spring 9 is connected to the first connecting plate 301. The second spring 9 plays a restoring role when the guide post 8 is compressed.

[0047] In a preferred embodiment, the guide post 8 is cylindrical, and the second guide rod 13 is square. The second guide rod 13 is connected to the side wall of the guide post 8. The first connecting plate 301 has a second opening, and the second guide rod 13 slides through the second opening, which matches the second guide rod 13. The cylindrical shape of the guide post 8 prevents damage to the edge of the filter bag when it contacts the inner wall of the filter bag 1. The square shape of the second guide rod 13 and the matching of the second opening prevent the second guide rod 13 from rotating while sliding within the second opening. Preferably, the cross-section of the second guide rod 13 cannot be circular, otherwise it will not effectively restrict the rotation of the second guide rod 13. The cross-section of the second guide rod 13 can be triangular, rectangular, trapezoidal, etc.

[0048] Better, such as Figure 4 As shown, the end of the second guide rod 13 is provided with a second stop block for blocking the first connecting plate 301 on the side away from the second guide rod 13. The first end of the second guide rod 13 is fixed to the guide post 8, and the end of the second end of the second guide rod 13 is provided with an internal threaded hole. The second stop block is a bolt, which is screwed into the internal threaded hole, and the diameter of the bolt head is larger than the diameter of the second opening hole, thereby preventing the second guide rod 13 from sliding outward and disengaging from the second spring 9.

[0049] As a preferred implementation method, such as Figure 2 As shown, the first inner clamping member 4 is an arc-shaped plate. The outer wall of the first inner clamping member 4 is used to fit against the inner wall of the opening of the filter bag 1. The inner wall of the first inner clamping member 4 is connected to the first guide rod 6 and the first spring 7.

[0050] As a preferred implementation method, such as Figure 1As shown, the second outer clamping member 3 is provided with a handle 303 at the top, and the handle 303 is located between the top two ends of the first connecting plate 301.

[0051] This invention provides a method for replacing dust collector filter bags using a dust collector filter bag replacement device, comprising the following steps:

[0052] Filter bag 1 is installed in the mounting hole of the tube sheet. First, remove the old filter bag from the mounting hole, and then put the new filter bag into the mounting hole for installation.

[0053] The drive mechanism drives the gear 11 to rotate in the forward direction. The gear 11 drives the rack 10 to move inward, and drives the first outer clamping member 2 and the first inner clamping member 4 to retract inward, so that the first spring 7 is compressed until the filter bag opening is deformed.

[0054] Lift the dust collector filter bag replacement device upwards until filter bag 1 is completely removed from the mounting hole;

[0055] The drive mechanism drives the gear 11 to rotate in the opposite direction. The gear 11 drives the rack 10 to move outward and the first outer clamping member 2 to move outward. The first spring 7 returns to its original state and drives the first inner clamping member 4 to move outward until a gap is formed between the opening edge of the filter bag 1 and the first outer clamping member 2, so that the filter bag 1 is removed from the dust removal filter bag replacement device.

[0056] A new filter bag is provided, and the opening of the new filter bag is clamped onto the second outer clamp 3 and attached to the outer wall of the opening of the new filter bag 1. The first inner clamp 4 and the second inner clamp 5 are respectively attached to the inner wall of the filter bag opening. The drive mechanism drives the gear 11 to rotate forward. The gear 11 drives the rack 10 to move inward and drives the first outer clamp 2 to retract inward until the first outer clamp 2 is attached to the outer wall of the new filter bag opening. The drive mechanism further drives the gear 11 to rotate forward until the opening of the new filter bag is deformed.

[0057] Place the new filter bag into the mounting hole and block the dust collector filter bag replacement device on the tube sheet. Drive the gear 11 to rotate in the opposite direction through the drive mechanism. The gear 11 drives the rack 10 to move outward and drives the first outer clamping member 2 to move outward. The first spring 7 returns to its original state and drives the first inner clamping member 4 to move outward until the edge of the opening of the new filter bag is deformed and restored. Then remove the new filter bag from the dust collector filter bag replacement device.

[0058] A further improvement of the replacement method of the dust filter bag replacement device of the present invention is that guide posts 8 are symmetrically connected on the side of the first connecting plate 301 away from the second outer clamping member 3, and the guide posts 8 are telescopically connected to the first connecting plate 301.

[0059] When the drive mechanism drives the gear 11 to rotate in the forward direction, the gear 11 drives the rack 10 to move inward, and drives the first outer clamping member 2 and the first inner clamping member 4 to retract inward until the filter bag opening is deformed, the guide post 8 retracts.

[0060] When the drive mechanism drives the gear 11 to rotate in the opposite direction, the gear 11 drives the rack 10 to move outward, and drives the first outer clamping member 2 to move outward, the guide post 8 extends and abuts against the inner wall of the filter bag 1 opening, assisting the filter bag 1 opening to be restored.

[0061] Preferably, the rotation direction of the ratchet wrench body 16 is changed by adjusting the ratchet lever, thereby controlling the movement direction of the rack 10. When the telescopic mechanism moves inward, adjusting the ratchet lever rotates the ratchet wrench body 16 in the forward direction, causing the gear 11 to rotate in the forward direction, thus moving the rack 10 inward; then adjusting the ratchet lever rotates the ratchet wrench body 16 in the reverse direction, causing the rack 10 to rotate in the reverse direction, thus moving the rack 11 outward.

[0062] The dust collector filter bag replacement device of the present invention has a filter bag 1 installed in a mounting hole on a tube sheet. When removing the filter bag 1, the filter bag 1 is first removed from the mounting hole, and then the filter bag 1 is separated from the device. The outer clamping part of the device is attached to the outer wall of the opening of the filter bag 1, and the inner clamping part is attached to the inner wall of the opening of the filter bag 1.

[0063] Adjust the ratchet lever to rotate the ratchet wrench body 16 clockwise, causing the rack 10 to rotate clockwise as well. This causes the rack 11 to move the first outer clamping member 2 inward toward the inside of the filter bag opening, pushing the first inner clamping member 4 inward. At this time, the first spring 7 is compressed and applies an outward elastic force to the first inner clamping member 4, causing the first outer clamping member 2 and the first inner clamping member 4 to clamp the edge of the filter bag opening. When the first outer clamping member 2 and the first inner clamping member 4 retract inward, they retract together with the clamped edge of the filter bag opening, causing the edge of the filter bag opening at this position to deform, making the diameter of the filter bag smaller than the mounting hole size of the tube sheet, thereby separating the filter bag from the tube sheet. Hold the handle 303 and lift the device and filter bag 1 upward toward the mounting hole.

[0064] Then adjust the ratchet lever to rotate the ratchet wrench body 16 in the opposite direction and drive the gear 11 to rotate in the opposite direction, so that the rack 10 drives the first outer clamping member 2 to move outward, the first spring 7 returns to its original state and drives the first inner clamping member 4 to move outward. At this time, the first outer clamping member 2 and the first inner clamping member 4 still clamp the edge of the filter bag opening, and drive the deformed position of the filter bag to return to its original state when moving outward, until a gap is generated between the edge of the filter bag opening and the first outer clamping member 2, that is, the first outer clamping member 2 and the first inner clamping member 4 no longer clamp the filter bag, and the old filter bag can be removed from the device.

[0065] Next, install the new filter bag. First, install the new filter bag onto the device, then place it into the mounting hole. Place the second outer clamp 3, the first inner clamp 4, and the second inner clamp 5 onto the opening of the new filter bag. Adjust the ratchet lever, rotating the ratchet wrench body 16 clockwise, causing the rack 10 to move the first outer clamp 2 inward until it is against the outer wall of the filter bag opening. Further move the rack 10 inward until the opening of the new filter bag is deformed (while deforming the opening, the device maintains the clamping state on the new filter bag, ensuring the new filter bag's opening diameter is smaller than the mounting hole diameter so that the new filter bag can be placed into the mounting hole).

[0066] Next, place the new filter bag into the mounting hole. Then adjust the ratchet lever and rotate the ratchet wrench body 16 in the opposite direction, so that the rack 10 drives the first outer clamping member 2 to move outward in the opposite direction until the edge of the opening of the new filter bag is deformed and restored. Then the new filter bag is installed in the mounting hole. Finally, separate the device from the new filter bag and proceed to the next mounting hole to remove the old filter bag and install the new filter bag, thus completing the filter bag replacement.

[0067] The dust collector filter bag replacement device and method of the present invention can improve the filter bag replacement efficiency and reduce the risk of human injury, especially when replacing filter bags in batches, where manual installation is time-consuming and the installation rebound may pinch fingers and cause injury.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A dust collector filter bag replacement device, characterized in that, The filter bag is installed in the mounting hole via a dust collector filter bag replacement device, and the dust collector filter bag replacement device is blocked on the tube sheet, including: The outer clamping part includes a first outer clamping member for fitting against the outer wall of the filter bag opening and a second outer clamping member for being clamped onto the filter bag opening and fitting against the outer wall of the filter bag opening. The second outer clamping member is an arc-shaped plate and a first connecting plate is connected between the two ends of the second outer clamping member. The first outer clamping member and the second outer clamping member are arranged opposite to each other. An inner clamping part is provided corresponding to the outer clamping part. The inner clamping part includes a first inner clamping member and a second inner clamping member that are disposed opposite to each other and fit against the inner wall of the filter bag opening. A first guide rod is connected to the side of the first inner clamping member close to the second inner clamping member. The second inner clamping member is an arc-shaped plate and a second connecting plate is connected between the inner walls of the second inner clamping member. The first guide rod slides through the first connecting plate and the second connecting plate, and a first spring is sleeved on the first guide rod at the position between the first inner clamping member and the first connecting plate. A telescopic mechanism is connected between the first external clamping member and the first connecting plate. The telescopic mechanism includes a rack fixed to the first external clamping member, a gear meshing with the rack, and a drive mechanism for driving the gear to rotate. The drive mechanism is connected to the first connecting plate, and the rack is located above the first connecting plate.

2. The dust collector filter bag replacement device as described in claim 1, characterized in that, The drive mechanism includes a socket ratchet wrench, a rotating shaft connected between the socket ratchet wrench and the gear, and a bearing mounting box. The bearing mounting box is fixed to the first connecting plate, and a through hole is provided on the bearing mounting box for the rotating shaft to pass through.

3. The dust collector filter bag replacement device as described in claim 2, characterized in that, A bearing connected to the rotating shaft is installed inside the through hole.

4. The dust collector filter bag replacement device as described in claim 1, characterized in that, A guide rail is fixed to the top surface of the first connecting plate, and a slider is slidably mounted on the guide rail. The rack is fixed to the slider.

5. The dust collector filter bag replacement device as described in claim 1, characterized in that, The first connecting plate and the second connecting plate are respectively provided with first openings, the first guide rod is slidably inserted in the first opening, and the end of the first guide rod is provided with a stop block for blocking the second connecting plate on the side away from the first connecting plate.

6. The dust collector filter bag replacement device as described in claim 1, characterized in that, The first connecting plate has U-shaped grooves at both ends corresponding to the inner side of the second outer clamping member for the filter bag opening to be engaged.

7. The dust collector filter bag replacement device as described in claim 1, characterized in that, Guide posts are symmetrically connected to the side of the first connecting plate away from the second external clamping member, and the guide posts are telescopically connected to the first connecting plate.

8. The dust collector filter bag replacement device as described in claim 7, characterized in that, The guide post is provided with a second guide rod, which slides through the first connecting plate, and a second spring is sleeved on the second guide rod.

9. The dust collector filter bag replacement device as described in claim 8, characterized in that, The guide post is a cylinder, and the second guide rod is a square post. The second guide rod is connected to the side wall of the guide post. The first connecting plate has a second opening, and the second guide rod slides through the second opening. The second opening matches the second guide rod.

10. A method for replacing dust collector filter bags using the dust collector filter bag replacement device as described in claim 1, characterized in that, Includes the following steps: The drive mechanism drives the gear to rotate in the forward direction. The gear drives the rack to move inward and causes the first outer clamping member and the first inner clamping member to retract inward, compressing the first spring until the filter bag opening is deformed. Lift the dust collector filter bag replacement device upwards until the filter bag is completely removed from the mounting hole; The drive mechanism drives the gear to rotate in the opposite direction, the gear drives the rack to move outward, and drives the first outer clamping member to move outward. The first spring returns to its original state and drives the first inner clamping member to move outward until a gap is formed between the edge of the filter bag opening and the first outer clamping member, and the filter bag is removed from the dust removal filter bag replacement device. A new filter bag is provided, and the opening of the new filter bag is clamped onto the second outer clamp and attached to the outer wall of the opening of the new filter bag. The first inner clamp and the second inner clamp are respectively attached to the inner wall of the opening of the new filter bag. The gear is driven to rotate forward by the driving mechanism. The gear drives the rack to move inward and drives the first outer clamp to retract inward until the first outer clamp is attached to the outer wall of the opening of the new filter bag. The driving mechanism further drives the gear to rotate forward until the opening of the new filter bag is deformed. The new filter bag is placed into the mounting hole, and the dust removal filter bag replacement device is blocked on the tube sheet. The drive mechanism drives the gear to rotate in the opposite direction. The gear drives the rack to move outward and the first outer clamping member to move outward. The first spring returns to its original state and drives the first inner clamping member to move outward until the opening edge of the new filter bag is deformed and restored.

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