Industrial waste gas purification treatment system

Abstract

The invention discloses an industrial waste gas purification treatment system, which belongs to the technical field of waste gas treatment, and comprises a gas inlet pipe, a primary filter box, a back flushing box, a connecting pipe, a secondary filter box and a gas outlet pipe which are fixedly connected in sequence along a gas flow conveying direction, a plurality of bag dust removal assemblies easy to disassemble and assemble are evenly installed between the first-stage filter box and the back flushing box, a knocking dust removal mechanism is installed in the first-stage filter box, and the knocking dust removal mechanism comprises a synchronous driving assembly, a multi-point knocking assembly and a lifting moving assembly. According to the mode, after the bag dust removal assembly easy to disassemble and assemble operates for a long time, the lifting moving assembly drives the multi-point-position knocking assemblies to vertically move, and the synchronous driving assembly synchronously provides power for all the multi-point-position knocking assemblies, so that the multi-point-position knocking assemblies continuously knock a frame of the bag dust removal assembly easy to disassemble and assemble while moving; therefore, attachments on the outer surface of the easy-to-disassemble-and-assemble bag dust removal assembly are shaken off, and the service life of the easy-to-disassemble-and-assemble bag dust removal assembly is effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to an industrial waste gas purification and treatment system. Background Art

[0002] Chinese patent CN116688693A discloses a box-type bag dust collector, comprising a loading rack, a dust collection box mounted on the loading rack, and the dust collection box is provided with: a first-level dust collection box, which is arranged in the inner cavity of the dust collection box, the bottom of the first-level dust collection box is connected to the dust discharge box, and the top of the first-level dust collection box is provided with a first guide pipe; a first-level filter box, the bottom end of the first-level filter box is connected to the first guide pipe, and the top side edge of the first-level filter box is connected to the second guide pipe; a second-level dust collection box is arranged on the side edge of the first-level filter box and connected to the second guide pipe, and the bottom of the second-level dust collection box is provided with a dust collecting cylinder; a second-level filter box is arranged on the top of the second-level dust collection box and is separated from the second-level filter box by a filter layer. The dust collector can perform dust filtering in batches, but the dust collector still has the following problems:

[0003] After long-term use, a large amount of attachments will be deposited on the outer surface of the bag. The attachments may be embedded in the pores of the bag, causing the bag's filtering performance to deteriorate. Conventional backflushing solutions are difficult to remove the attachments, and the cleaning effect is poor, requiring frequent bag replacement. However, bag replacement is inconvenient and labor-intensive for operators.

[0004] Based on this, the present invention designs an industrial waste gas purification and treatment system to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an industrial waste gas purification and treatment system.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An industrial waste gas purification and treatment system comprises an air inlet pipe, a primary filter box, a backflush box, a connecting pipe, a secondary filter box and an air outlet pipe which are fixedly connected in sequence along the air flow conveying direction;

[0008] A plurality of easily detachable bag dust collection assemblies are evenly installed between the first-stage filter box and the back-blowing box, and a knocking dust collection mechanism is installed in the first-stage filter box. The knocking dust collection mechanism includes a synchronous drive assembly, a multi-point knocking assembly and a lifting and moving assembly. The lifting and moving assembly is connected to the inner wall of the first-stage filter box, and a plurality of multi-point knocking assemblies corresponding to the easily detachable bag dust collection assemblies are installed on the moving end of the lifting and moving assembly. The multi-point knocking assembly is used to knock on the frame of the easily detachable bag dust collection assembly so that attachments on the surface of the outer bag frame are shaken off; a synchronous drive assembly driven by the multi-point knocking assembly is also installed on the side of the moving end of the lifting and moving assembly;

[0009] A multi-layer uniform filtration mechanism is installed in the secondary filter box. The multi-layer uniform filtration mechanism is used to further filter the gas after being filtered by the easily detachable bag dust removal assembly and make efficient use of the filter material.

[0010] Furthermore, the easily detachable bag dust removal assembly includes a dust removal bag, an outer frame assembly and an inner frame assembly. The inner frame assembly is installed on the inner top of the first-stage filter box, the outer frame assembly is installed on the lower side of the backflush box, and the dust removal bag is installed between the outer frame assembly and the inner frame assembly.

[0011] Furthermore, the multi-point knocking assembly includes a knocking structure and a rotary traction assembly. The knocking structure is installed on the moving end of the lifting and moving assembly. The knocking structure is provided with multiple and evenly distributed at equal intervals along the circumference of the easily detachable bag dust removal assembly; the rotary traction assembly is installed on the outside of the knocking structure, and is used to pull the knocking structure so that it continuously knocks on the frame of the easily detachable bag dust removal assembly.

[0012] Furthermore, the knocking structure includes a support block, a sliding rod, a knocking block and a spring. The support block is fixedly connected to the moving end of the lifting and moving assembly, the sliding rod is connected to the support block in a limited sliding manner, and a knocking block is fixedly installed on one end of the sliding rod close to the easily disassembled bag dust removal assembly; the spring is sleeved on the outside of the sliding rod, and the two ends of the spring are respectively fixedly connected to the knocking block and the support block.

[0013] Furthermore, the rotating traction assembly includes a driven bevel block, an active bevel block and a rotating ring. The active bevel block is fixedly installed on the end of the sliding rod away from the knocking block. The rotating ring is rotatably connected to the rack. A plurality of active bevel blocks corresponding to the driven bevel blocks and slidingly connected are fixedly installed on the rotating ring.

[0014] Furthermore, the synchronous drive assembly includes a rack, a gear, a transmission assembly, a driving gear and a driven gear. The rack is fixedly connected to the inner wall of the first-stage filter box, the gear is meshed with the rack, the driving gear is rotationally connected to the moving end of the lifting and moving assembly, and the driving gear is connected to the gear transmission through the transmission assembly; the outer edge of the rotating ring of each multi-point knocking assembly is fixedly installed with a driven gear, adjacent driven gears are meshed with each other, and the driving gear is meshed with any driven gear.

[0015] Furthermore, the transmission assembly includes a worm and a worm wheel, the worm is rotationally connected to the moving end of the lifting and moving assembly, the worm is fixedly connected to the gear, the worm wheel is fixedly connected to the driving gear, and the worm wheel is meshingly connected to the worm.

[0016] Furthermore, the multi-layer uniform filtering mechanism includes a filter plate, a first stop frame, a second stop frame, a pushing assembly, a pull-out material frame and a locking assembly. The first stop frame and the second stop frame are fixedly installed in the secondary filter box. A filter cavity for accommodating the filter plate is formed between the first stop frame and the second stop frame. The filter plate is fitted and slidably connected to the inner wall of the secondary filter box; the pushing assembly is installed in the secondary filter box and is located on the right side of the filter cavity. The pushing assembly is used to push the filter plate to the left; two pull-out material frames are provided and are located on the left and right sides of the filter cavity. The pull-out material frame is limitedly slidably connected to the secondary filter box; a locking assembly is installed on the top of the pull-out material frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. After the easily detachable bag dust removal assembly has been running for a long time, the multi-point knocking assembly is driven by the lifting and moving assembly to move along the axial direction of the easily detachable bag dust removal assembly, and the synchronous driving assembly synchronously provides power to all multi-point knocking assemblies, so that the multi-point knocking assembly continuously knocks on the frame of the easily detachable bag dust removal assembly while moving, so that the attachments on the outer surface of the easily detachable bag dust removal assembly are shaken off, thereby restoring the filtering effect of the easily detachable bag dust removal assembly, effectively extending the service life of the easily detachable bag dust removal assembly, and avoiding frequent replacement of the easily detachable bag dust removal assembly.

[0018] 2. After the airflow flows into the secondary filter box through the connecting pipe, it passes through multiple filter plates and then flows out from the outlet pipe. After the filter plates have been running for a period of time, the left pull-out material frame is pulled out from the secondary filter box, and then the leftmost filter plate is taken out, and the pull-out material frame is put back into the secondary filter box. Then, the push cylinder drives the push plate to push all the filter plates to the left until the filter plates enter the left pull-out material frame and abut against the first stop frame. At this time, the right pull-out material frame is pulled out, and a new filter plate is loaded into the pull-out material frame and then put back. Finally, the two pull-out material frames are locked by the locking assembly. A sealing layer is provided on the upper end of the pull-out material frame to ensure the sealing of the secondary filter box, so that the filter plates circulate to the left, so that all filter plates are fully utilized, so that the filter plates can always maintain a good filtration effect and reduce the cost of using the filter plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0020] Figure 1 This is a front view of an industrial waste gas purification and treatment system of the present invention;

[0021] Figure 2A partially obscured front view of an industrial waste gas purification and treatment system according to the present invention;

[0022] Figure 3 A partially obstructed three-dimensional structure of an industrial waste gas purification and treatment system of the present invention Figure 1 ;

[0023] Figure 4 A partially obstructed three-dimensional structure of an industrial waste gas purification and treatment system of the present invention Figure 2 ;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic structural diagram of the easily detachable bag dust removal assembly of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the multi-layer uniform filtering mechanism of the present invention.

[0027] The numbers in the figure represent:

[0028] 10. Primary filter box; 11. Backflush box; 12. Secondary filter box; 13. Inlet pipe; 14. Outlet pipe; 15. Connecting pipe; 2. Easily removable bag filter assembly; 21. Dust bag; 22. Outer bag frame; 23. Outer connecting block; 24. Inner bag frame; 25. Inner connecting block; 26. Sealing block; 3. Knocking dust removal mechanism; 31. Synchronous drive assembly; 311. Rack; 312. Gear; 313. Worm; 314. Worm wheel; 315. Driving gear; 316. Driven gear ; 32. Multi-point knocking assembly; 321. Support block; 322. Slide rod; 323. Knocking block; 324. Spring; 325. Driven oblique block; 326. Active oblique block; 327. Rotating ring; 33. Lifting and moving assembly; 331. Lifting frame; 332. Motor; 333. Screw rod; 334. Limit rod; 4. Multi-layer uniform filtering mechanism; 41. Filter plate; 42. First stop frame; 43. Second stop frame; 44. Push plate; 45. Push cylinder; 46. Pull-out material frame; 47. Locking assembly. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 7 , an industrial waste gas purification and treatment system, comprising an air inlet pipe 13, a primary filter box 10, a backflush box 11, a connecting pipe 15, a secondary filter box 12 and an air outlet pipe 14 fixedly connected in sequence along the air flow conveying direction;

[0032] A plurality of easily detachable bag dust removal components 2 are evenly installed between the primary filter box 10 and the backflush box 11. A knocking dust removal mechanism 3 is installed in the primary filter box 10. The knocking dust removal mechanism 3 includes a synchronous drive component 31, a multi-point knocking component 32 and a lifting and moving component 33. The lifting and moving component 33 is connected to the inner wall of the primary filter box 10. The moving end of the lifting and moving component 33 is equipped with a plurality of multi-point knocking components 32 corresponding to the easily detachable bag dust removal components 2. The multi-point knocking component 32 is used to knock on the frame of the easily detachable bag dust removal component 2 so that the attachments on the surface of the outer bag frame 22 are shaken off; the side of the moving end of the lifting and moving component 33 is also equipped with a synchronous drive component 31 driven by the multi-point knocking component 32;

[0033] A multi-layer uniform filtering mechanism 4 is installed in the secondary filter box 12. The multi-layer uniform filtering mechanism 4 is used to further filter the gas after being filtered by the easily detachable bag dust removal assembly 2 and to make efficient use of the filter material.

[0034] In the present invention, the air flow enters the primary filter box 10 from the air inlet pipe 13, enters the back-blowing box 11 after being filtered by the easily detachable bag dust removal assembly 2, and enters the secondary filter box 12 through the connecting pipe 15. The air flow is further filtered by the multi-layer uniform filtering mechanism 4 and then discharged from the air outlet pipe 14; after the easily detachable bag dust removal assembly 2 has been running for a long time, the multi-point knocking assembly 32 is driven by the lifting and moving assembly 33 to move axially along the easily detachable bag dust removal assembly 2, and the synchronous driving assembly 31 synchronously provides power to all multi-point knocking assemblies 32, so that the multi-point knocking assembly 32 continuously knocks on the frame of the easily detachable bag dust removal assembly 2 while moving, so that the attachments on the outer surface of the easily detachable bag dust removal assembly 2 are shaken off, thereby restoring the filtering effect of the easily detachable bag dust removal assembly 2, effectively extending the service life of the easily detachable bag dust removal assembly 2, and avoiding frequent replacement of the easily detachable bag dust removal assembly 2.

[0035] See also Figure 6The easily detachable bag dust removal assembly 2 includes a dust removal bag 21, an outer frame assembly and an inner frame assembly. The inner frame assembly is installed on the inner top of the first-stage filter box 10, and the outer frame assembly is installed on the lower side of the backflush box 11. The dust removal bag 21 is installed between the outer frame assembly and the inner frame assembly. Through the cooperation of the two, a stable limiting effect of the dust removal bag 21 is achieved, and the dust removal bag 21 is prevented from deformation.

[0036] The outer frame assembly includes an outer bag frame 22 and an outer connecting block 23. The outer connecting block 23 is fixedly connected to the top of the first-stage filter box 10, and the upper end of the outer bag frame 22 is detachably connected to the outer connecting block 23.

[0037] The inner frame assembly includes an inner bag frame 24, an inner connecting block 25 and a sealing pressing block 26. The inner connecting block 25 is fixedly connected to the lower end of the primary filter box 10. The inner bag frame 24 and the inner connecting block 25 are detachably connected. The sealing pressing block 26 is fixedly installed on the upper end of the inner bag frame 24.

[0038] When the dust bag 21 needs to be replaced, the backflush box 11 is separated from the primary filter box 10 and lifted vertically. All the inner bag frames 24 can be lifted from the dust bag 21 at one time, so that the operator can easily replace the dust bag 21 in the outer bag frame 22. After the dust bag 21 is replaced, the backflush box 11 is reinstalled on the primary filter box 10, so that all the inner bag frames 24 are inserted into the corresponding dust bags 21 at one time, and the sealing block 26 presses the upper end of the dust bag 21 against the top of the primary filter box 10 to achieve a sealing effect on the primary filter box 10.

[0039] In some embodiments, the outer bag frame 22 is threadedly connected to the outer connecting block 23 , and the inner bag frame 24 is threadedly connected to the inner connecting block 25 .

[0040] See also Figure 3-Figure 5 The lifting and moving assembly 33 includes a lifting frame 331 and a lifting drive assembly. The lifting drive assembly includes a motor 332, a screw rod 333, and a limit rod 334. The motor 332 is rotatably connected to the primary filter box 10 via a bearing, and the limit rod 334 is fixedly connected to the primary filter box 10. The lifting frame 331 is threadedly connected to the screw rod 333 via a threaded sleeve, and the lifting frame 331 and the limit rod 334 are slidably connected. The motor 332 is fixedly mounted on the top of the primary filter box 10, and the output end of the motor 332 is fixedly connected to the screw rod 333. The outer side of the screw rod 333 is covered with a foldable shield structure such as a bellows to prevent debris from adhering to the screw rod 333. The lifting frame 331 is provided with a through slot for avoiding the easily removable bag dust removal assembly 2.

[0041] In some embodiments, the lifting drive assembly adopts a gear rack moving structure driven by a motor.

[0042] The multi-point knocking assembly 32 includes a knocking structure and a rotating traction assembly. The knocking structure is installed on the lifting frame 331. The knocking structures are provided with multiple and evenly spaced along the circumference of the easily detachable bag dust removal assembly 2. The rotating traction assembly is installed on the outside of the knocking structure and is used to pull the knocking structure to continuously knock on the frame of the easily detachable bag dust removal assembly 2.

[0043] The knocking structure includes a supporting block 321, a sliding rod 322, a knocking block 323 and a spring 324. The supporting block 321 is fixedly connected to the lifting frame 331, and the sliding rod 322 is slidingly connected to the supporting block 321. The knocking block 323 is fixedly installed on the end of the sliding rod 322 close to the easily detachable bag dust removal component 2; the spring 324 is sleeved on the outside of the sliding rod 322, and the two ends of the spring 324 are respectively fixedly connected to the knocking block 323 and the supporting block 321;

[0044] The rotary traction assembly includes a driven bevel block 325, an active bevel block 326 and a rotating ring 327. The active bevel block 326 is fixedly installed on the end of the slide rod 322 away from the knocking block 323. The rotating ring 327 is rotatably connected to the rack 311. A plurality of active bevel blocks 326 corresponding to the driven bevel blocks 325 and slidingly connected therewith are fixedly installed on the rotating ring 327.

[0045] The synchronous drive assembly 31 includes a rack 311, a gear 312, a transmission assembly, a driving gear 315 and a driven gear 316. The rack 311 is fixedly connected to the inner wall of the primary filter box 10, the gear 312 is meshed with the rack 311, the driving gear 315 is rotatably connected to the lifting frame 331, and the driving gear 315 is transmission-connected to the gear 312 through the transmission assembly; the outer edge of the rotating ring 327 of each multi-point knocking assembly 32 is fixedly mounted with a driven gear 316, adjacent driven gears 316 are meshed with each other, and the driving gear 315 is meshed with any driven gear 316;

[0046] The transmission assembly includes a worm 313 and a worm wheel 314. The worm 313 is rotatably connected to the lifting frame 331. The worm 313 is fixedly connected to the gear 312. The worm wheel 314 is fixedly connected to the driving gear 315. The worm wheel 314 is meshingly connected to the worm 313.

[0047] In some embodiments, the transmission assembly may adopt a bevel gear and bevel gear transmission structure.

[0048] When the cam 331 is in the unlocked position, the gear 312 is rotated to the left by the cam 332, and the gear 312 is rotated to the right by the cam 332. When the cam 331 is in the unlocked position, the gear 312 is rotated to the right by the cam 332. The gear 312 is rotated to the right by the cam 332. The gear 312 is rotated to the right by the cam 332. The cam 332 is rotated to the left by the cam 332.

[0049] See also Figure 3 and Figure 7 The multi-layer uniform filtering mechanism 4 includes a filter plate 41, a first stop frame 42, a second stop frame 43, a pushing assembly, a pull-out material frame 46 and a locking assembly 47. The first stop frame 42 and the second stop frame 43 are fixedly installed in the secondary filter box 12. A filter cavity for accommodating the filter plate 41 is formed between the first stop frame 42 and the second stop frame 43. The filter plate 41 is fitted and slidably connected to the inner wall of the secondary filter box 12; the pushing assembly is installed in the secondary filter box 12 and is located on the right side of the filter cavity. The pushing assembly is used to push the filter plate 41 to the left; two pull-out material frames 46 are provided and are located on the left and right sides of the filter cavity. The pull-out material frame 46 is limitedly slidably connected to the secondary filter box 12; a locking assembly 47 is installed on the top of the pull-out material frame 46.

[0050] The pushing assembly includes a pushing plate 44 and a pushing cylinder 45 . The two pushing cylinders 45 are fixedly connected to the front and rear inner walls of the secondary filter box 12 . The output end of the pushing cylinder 45 is fixedly mounted with a pushing plate 44 .

[0051] In the present invention, after the air flow flows into the secondary filter box 12 through the connecting pipe 15, it passes through a plurality of filter plates 41 and then flows out from the air outlet pipe 14 after being filtered. As a result, more substances are retained on the left filter plate 41 and less substances are retained on the right filter plate 41. The farther the filter plate 41 is from the air flow inlet, the lower the utilization efficiency. After the filter plates 41 have been running for a period of time, the left pull-out material frame 46 is pulled out of the secondary filter box 12, and then the leftmost filter plate 41 is taken out. The pull-out material frame 46 is then put back into the secondary filter box 12, and then the push cylinder 45 drives the push plate 44 to push all the filter plates 41. Push to the left until the filter plate 41 enters the left pull-out material frame 46 and abuts against the first stop frame 42. At this time, pull out the right pull-out material frame 46, load a new filter plate 41 into the pull-out material frame 46 and put it back. Finally, lock the two pull-out material frames 46 through the locking assembly 47. A sealing layer is provided on the upper end of the pull-out material frame 46 to ensure the sealing of the secondary filter box 12, so that the filter plates 41 circulate to the left, so that all filter plates 41 are fully utilized, so that the filter plates 41 can always maintain a good filtering effect and reduce the use cost of the filter plates 41.

[0052] In some embodiments, the locking assembly 47 adopts a latch locking structure or a bolt locking structure.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An industrial waste gas purification and treatment system, comprising an air inlet pipe (13), a primary filter box (10), a backflush box (11), a connecting pipe (15), a secondary filter box (12), and an air outlet pipe (14) fixedly connected in sequence along an air flow conveying direction, characterized in that: A plurality of easily detachable bag dust removal assemblies (2) are evenly installed between the first-stage filter box (10) and the back-blowing box (11); a knocking dust removal mechanism (3) is installed in the first-stage filter box (10); the knocking dust removal mechanism (3) comprises a synchronous drive assembly (31), a multi-point knocking assembly (32) and a lifting and moving assembly (33); the lifting and moving assembly (33) is connected to the inner wall of the first-stage filter box (10); a plurality of multi-point knocking assemblies (32) corresponding to the easily detachable bag dust removal assemblies (2) are installed on the moving end of the lifting and moving assembly (33); the multi-point knocking assembly (32) is used to knock the frame of the easily detachable bag dust removal assembly (2) so that the attached matter on the surface of the outer bag frame (22) is shaken off; a synchronous drive assembly (31) connected to the multi-point knocking assembly (32) is also installed on the side of the moving end of the lifting and moving assembly (33); A multi-layer uniform filtering mechanism (4) is installed in the secondary filter box (12). The multi-layer uniform filtering mechanism (4) is used to further filter the gas after being filtered by the easily detachable bag dust removal assembly (2), and to efficiently utilize the filter material.

2. The industrial waste gas purification system according to claim 1, characterized in that: The easily detachable bag dust removal assembly (2) comprises a dust removal bag (21), an outer frame assembly and an inner frame assembly, wherein the inner frame assembly is mounted on the inner top of the first-stage filter box (10), the outer frame assembly is mounted on the lower side of the backflush box (11), and the dust removal bag (21) is mounted between the outer frame assembly and the inner frame assembly.

3. The industrial waste gas purification system according to claim 2, characterized in that: The multi-point knocking assembly (32) comprises a knocking structure and a rotary traction assembly. The knocking structure is mounted on the movable end of the lifting and moving assembly (33). The knocking structure is provided with a plurality of knocking structures and is evenly distributed along the circumference of the easily detachable bag dust removal assembly (2) at equal intervals. The rotary traction assembly is mounted on the outside of the knocking structure and is used to pull the knocking structure so that it continuously knocks on the frame of the easily detachable bag dust removal assembly (2).

4. The industrial waste gas purification system according to claim 3, characterized in that: The knocking structure comprises a supporting block (321), a sliding rod (322), a knocking block (323) and a spring (324); the supporting block (321) is fixedly connected to the movable end of the lifting and moving assembly (33); the sliding rod (322) is limitedly slidably connected to the supporting block (321); the knocking block (323) is fixedly mounted on one end of the sliding rod (322) close to the easily detachable bag dust removal assembly (2); the spring (324) is sleeved on the outside of the sliding rod (322); and the two ends of the spring (324) are respectively fixedly connected to the knocking block (323) and the supporting block (321).

5. The industrial waste gas purification system according to claim 4, characterized in that: The rotary traction assembly comprises a driven bevel block (325), an active bevel block (326) and a rotating ring (327). The active bevel block (326) is fixedly mounted on one end of the slide bar (322) away from the knocking block (323). The rotating ring (327) is rotatably connected to the rack (311). A plurality of active bevel blocks (326) corresponding to the driven bevel blocks (325) and slidably connected are fixedly mounted on the rotating ring (327).

6. The industrial waste gas purification system according to claim 5, characterized in that: The synchronous drive assembly (31) includes a rack (311), a gear (312), a transmission assembly, a driving gear (315) and a driven gear (316); the rack (311) is fixedly connected to the inner wall of the first-stage filter box (10); the gear (312) is meshed with the rack (311); the driving gear (315) is rotationally connected to the moving end of the lifting and moving assembly (33); the driving gear (315) is transmission-connected to the gear (312) through the transmission assembly; the outer edge of the rotating ring (327) of each multi-point knocking assembly (32) is fixedly mounted with a driven gear (316); adjacent driven gears (316) are meshed with each other, and the driving gear (315) is meshed with any driven gear (316).

7. The industrial waste gas purification system according to claim 6, characterized in that: The transmission assembly includes a worm (313) and a worm wheel (314); the worm (313) is rotationally connected to the moving end of the lifting and moving assembly (33); the worm (313) is fixedly connected to the gear (312); the worm wheel (314) is fixedly connected to the driving gear (315); and the worm wheel (314) is meshingly connected to the worm (313).

8. The industrial waste gas purification system according to claim 1, characterized in that: The multi-layer uniform filtering mechanism (4) comprises a filter plate (41), a first baffle (42), a second baffle (43), a pushing assembly, a pull-out material frame (46) and a locking assembly (47), wherein the first baffle (42) and the second baffle (43) are fixedly mounted in the secondary filter box (12), a filter cavity for accommodating the filter plate (41) is formed between the first baffle (42) and the second baffle (43), and the filter plate (41) is slidably connected to the inner wall of the secondary filter box (12); the pushing assembly is mounted in the secondary filter box (12) and is located on the right side of the filter cavity, and the pushing assembly is used to push the filter plate (41) to the left; two pull-out material frames (46) are provided and are located on the left and right sides of the filter cavity, and the pull-out material frame (46) is limitedly slidably connected to the secondary filter box (12); and a locking assembly (47) is mounted on the top of the pull-out material frame (46).

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