Welding flue gas dedusting and purifying device

Abstract

The invention relates to the technical field of welding fume purification equipment, and particularly provides a welding fume dust removal and purification device. The invention discloses a welding flue gas dedusting and purifying device which comprises a box body, a dust suction pipe and a fan, a smoke dust filtering assembly and a gas purifying assembly are arranged in the box body, the smoke dust filtering assembly comprises a first partition plate, a filter cylinder, a welding slag blocking cylinder and a rotating pipe, and the first partition plate is fixedly arranged in the box body. High-temperature welding slag entering the box body is preliminarily filtered through the welding slag blocking cylinder, the welding slag is prevented from making direct contact with the filter cylinder, damage of high temperature and physical impact to the filter cylinder is reduced, the service life of the filter cylinder is prolonged, smoke can pass through the filter holes in the welding slag blocking cylinder, and it is ensured that the subsequent filtering process is normally conducted.

Description

Technical Field

[0001] This invention relates to the field of welding fume purification equipment technology, specifically to a welding fume dust removal and purification device. Background Technology

[0002] Welding fume purification equipment refers to equipment that collects and purifies the fumes and dust generated during welding, cutting, and grinding processes. Welding fumes and dust pose a significant threat to human health, making the installation of welding fume purification equipment particularly important.

[0003] Most existing welding fume purification equipment uses filter cartridges to filter welding fumes. However, welding operations generate a large amount of high-temperature welding slag. When this high-temperature welding slag comes into contact with the surface of the filter cartridge, it will accumulate on the filter cartridge. This continuous high temperature and physical impact will damage the filter cartridge, causing structural damage or a decrease in filtration efficiency. Once the filter cartridge is damaged, the welding fumes can overflow through the damaged part of the filter cartridge, thereby reducing the filtration quality of the entire system.

[0004] Chinese patent CN119367896B discloses a welding fume purifier. Through a filter plate, high-temperature welding slag entering the purifier body is blocked and filtered, preventing the slag from falling onto the filter cartridge and causing damage. The airflow from the inlet drives the fan blades and shaft to rotate. When the shaft drives the rotating rod to contact and separate from the arc-shaped plate, the scraper oscillates in an arc, removing welding slag from the filter plate surface. This prevents the slag from clogging the filter plate, and the filter plate further blocks the welding slag while allowing the fume to pass through, improving filtration efficiency.

[0005] While the aforementioned patents have solved the problem of direct contact between high-temperature welding slag and the filter cartridge, the filter cartridge is in a fixed position, with one side always facing the filter plate. This inevitably results in the side of the filter cartridge closer to the filter plate adsorbing more impurities than the side farther away, leading to insufficient utilization of the filter cartridge as a whole. In addition, the gas filtered by the filter cartridge needs to be further purified by the activated carbon filter plate before being discharged through the exhaust port. However, the activated carbon filter plate also suffers from the aforementioned problem: the windward side of the activated carbon filter plate is utilized more quickly and fully, while the leeward side is underutilized, resulting in insufficient utilization of the activated carbon filter plate as a whole. Therefore, we propose a welding fume dust removal and purification device. Summary of the Invention

[0006] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a welding fume dust removal and purification device.

[0007] The technical solution adopted by this invention is as follows: This invention provides a welding fume dust removal and purification device, comprising a housing, a suction pipe, and a fan. The housing is equipped with a fume filtration assembly and a gas purification assembly. The fume filtration assembly includes a partition plate, a filter cartridge, a slag blocking cylinder, and a rotating tube. The partition plate is fixedly disposed inside the housing. The rotating tube rotatably passes through the partition plate via a sealed bearing. The top end of the slag blocking cylinder is fixedly sleeved onto the bottom end of the rotating tube. The filter cartridge passes through the slag blocking cylinder and connects to the bottom end of the rotating tube. The gas purification assembly is located above the rotating tube. The assembly includes a second partition, an exhaust pipe, an annular shell, and an activated carbon plate. The second partition is fixedly installed inside the housing, the exhaust pipe is fixedly installed on the top of the second partition, the annular shell is rotatably sleeved on the exhaust pipe, the activated carbon plate is distributed inside the annular shell, the annular shell is connected to the exhaust pipe, the second partition has an air vent, the air vent is connected to the annular shell, and the assembly also includes a drive assembly. The drive assembly is installed on the top of the housing and is connected to the rotating pipe and the annular shell respectively. The fan is installed on the top of the housing and is connected to the top of the exhaust pipe, and the suction pipe is connected to the housing.

[0008] Furthermore, the drive assembly includes a motor and a rotating shaft. The motor is fixedly mounted on the top of the housing. The top end of the rotating shaft is fixedly connected to the output end of the motor. The bottom end of the rotating shaft rotatably passes through the second partition plate via a sealed bearing. A first driving gear and a second driving gear are fixedly mounted on the rotating shaft. A first ring gear is fixedly sleeved on the top of the annular housing. The first driving gear meshes with the first ring gear. A second ring gear is fixedly sleeved on the top of the rotating tube. The second driving gear meshes with the second ring gear.

[0009] Furthermore, the bottom end of the welding slag blocking cylinder is open, and an annular water storage tank is fixedly connected to the outside of its bottom end. The fume filtration assembly also includes a scraper, the top end of which is fixedly disposed at the bottom of a partition plate. The scraper contacts the side wall of the welding slag blocking cylinder, and its bottom end extends into the annular water storage tank. Filter holes are distributed on the welding slag blocking cylinder, and the filter holes are located above the annular water storage tank.

[0010] Furthermore, a stirring unit is provided at the bottom end of the scraper. The stirring unit includes a stirring rod located inside the annular water storage tank. One end of the stirring rod is horizontally rotatably mounted on the scraper via a bearing, and the other end of the stirring rod is fixedly provided with a driven gear. An annular rack is fixedly provided on the inner wall of the annular water storage tank, and the annular rack meshes with the driven gear. A stirring blade is fixedly provided on the stirring rod.

[0011] Furthermore, the gas purification assembly also includes a diffuser, which is fixedly mounted on the top of the second partition and covers the diffuser opening. A diffuser pipe is horizontally connected to the diffuser. Inlet pipes are distributed on the outer annular inner wall of the annular shell, and each diffuser pipe is connected to an inlet pipe. Outlet pipes are distributed on the inner annular inner wall of the annular shell, and the outlet pipes are sealed to the outer wall of the exhaust pipe. A set of vents is opened on the outer wall of the exhaust pipe, and each vent is connected to an outlet pipe. The vents are located behind the exhaust pipe, and the diffuser is located in front of the exhaust pipe. The bottom of the annular shell is rotatably connected to the top of the second partition via an annular track.

[0012] Furthermore, the bottom of the filter cartridge is sealed, and there are locking blocks distributed on the top edge of the filter cartridge. A connecting block is fixed on the top wall inside the welding slag blocking cylinder. The connecting blocks are distributed around the rotating tube, and a locking groove is opened on the connecting block. The locking block engages with the locking groove, and the top of the filter cartridge abuts against the bottom of the rotating tube.

[0013] Furthermore, the connection between the suction pipe and the box body is located between the annular water storage tank and the partition plate. A sealing ring is provided between the annular water storage tank and the inner wall of the box body. The sealing ring is fixed on the outer wall of the annular water storage tank and slides in contact with the inner wall of the box body.

[0014] Furthermore, a water inlet pipe is connected to one side of the housing, with one end of the water inlet pipe passing through the side wall of the housing and extending vertically into the annular water storage tank. A drain hole is provided at the bottom of the annular water storage tank, and a sealing plug is inserted into the drain hole. A backflush pipe is connected to one side of the housing, with one end of the backflush pipe passing through the side wall of the housing and extending vertically into the rotating pipe and the filter cartridge. An exhaust hood is installed on the top of the housing, and the exhaust hood is provided with air holes.

[0015] Furthermore, the top of the annular shell is provided with an insertion interface, through which the activated carbon plate is inserted into the annular shell, and the air outlet pipe and air inlet pipe are both located at intervals between the activated carbon plates.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] 1. This invention uses a slag-blocking cylinder to perform preliminary filtration of high-temperature welding slag entering the chamber, preventing the welding slag from directly contacting the filter cylinder, reducing damage to the filter cylinder from high temperature and physical impact, and extending the service life of the filter cylinder. The filter holes on the welding slag-blocking cylinder allow dust to pass through, ensuring that the subsequent filtration process proceeds normally.

[0018] 2. This invention, through the cooperation of the drive component and the dust filtration component, drives the rotating tube to rotate, causing the filter cartridge and the welding slag blocking cylinder to rotate synchronously. This avoids uneven impurity adsorption caused by one side of the filter cartridge facing the suction pipe for a long time, and achieves uniform utilization of the filter cartridge surface.

[0019] At the same time, the drive component and the gas purification component work together to rotate the annular shell, so that each activated carbon plate can fully contact the gas and the two sides of the activated carbon plate can be switched, solving the problem of insufficient utilization of the leeward side of the activated carbon plate in traditional equipment and improving purification efficiency.

[0020] 3. In this invention, a rotating welding slag blocking cylinder contacts a fixed scraper. The scraper scrapes the welding slag and impurities on the surface of the welding slag blocking cylinder into an annular water storage tank. The water in the annular water storage tank cools and collects the impurities, preventing them from adhering to the tank again. At the same time, when the stirring unit rotates with the annular water storage tank, the stirring blades automatically stir the water surface through a gear meshing mechanism, stirring light impurities into the water and preventing the water storage tank from becoming clogged due to the accumulation of impurities.

[0021] 4. The gas purification component of the present invention uses the arc-shaped interface design of the gas diffuser, gas diffuser pipe and air inlet pipe, combined with the rotation of the annular shell, to make the gas pass through multiple sets of activated carbon plates in sequence before entering the exhaust pipe, thus extending the purification path and improving the filtration accuracy. The air inlet is located on the rear side and the gas diffuser pipe is located on the front side, ensuring that the gas flows evenly through all activated carbon plates and avoiding local overuse. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a partial cross-sectional view of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram showing the connection between the dust filtration component, the gas purification component, and the drive component in this invention;

[0026] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure from another perspective;

[0027] Figure 5 for Figure 3 A partial sectional view;

[0028] Figure 6 This is a three-dimensional structural diagram showing the connection between the dust filtration component and the drive component in this invention;

[0029] Figure 7 This is a partial cross-sectional view of the dust filtration assembly in this invention;

[0030] Figure 8 for Figure 6 Enlarged view of point B;

[0031] Figure 9 This is a schematic diagram of the filter cartridge in this invention;

[0032] Figure 10 This is a partial cross-sectional view of the gas purification component in this invention;

[0033] Figure 11 for Figure 10 A schematic diagram of the three-dimensional structure from another perspective;

[0034] Figure 12 for Figure 10 Enlarged view of point A.

[0035] The components include: 1. Housing; 2. Suction pipe; 3. Fan; 4. Smoke and dust filter assembly; 5. Gas purification assembly; 6. Drive assembly; 7. Water inlet pipe; 8. Sealing plug; 9. Backflush pipe; 10. Exhaust hood; 41. Partition 1; 42. Filter cartridge; 43. Welding slag blocking cylinder; 44. Rotary pipe; 45. Ventilation outlet; 46. Annular water storage tank; 47. Scraper; 48. Filter hole; 49. Stirring unit; 51. Partition 2; 52. Exhaust pipe; 53. Annular shell; 54. Live... 55. Carbon plate, 56. Air diffuser, 57. Air inlet pipe, 58. Air outlet pipe, 59. Vent, 510. Circular track, 61. Motor, 62. Rotating shaft, 63. Drive gear one, 64. Drive gear two, 65. Circular gear one, 66. Circular gear two, 491. Stirring rod, 492. Driven gear, 493. Circular rack three, 494. Stirring blade, 421. Locking block, 422. Connecting block, 423. Locking groove, 424. Sealing ring. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0038] like Figures 1-5As shown, the present invention discloses a welding fume dust removal and purification device, comprising a housing 1, a dust suction pipe 2, and a fan 3. The housing 1 contains a fume filtration assembly 4 and a gas purification assembly 5. The fume filtration assembly 4 includes a partition 41, a filter cartridge 42, a slag blocking cylinder 43, and a rotating tube 44. The horizontally distributed partition 41 is fixedly disposed inside the housing 1. The vertically distributed rotating tube 44 rotates through the partition 41 via a sealed bearing. The top end of the slag blocking cylinder 43 is fixedly sleeved onto the bottom end of the rotating tube 44. The filter cartridge 42 passes through the slag blocking cylinder 43 and connects to the bottom end of the rotating tube 44. The gas purification assembly 5 is located above the rotating tube 44 and includes a partition. The enclosure consists of a partition 51, an exhaust pipe 52, an annular shell 53, and an activated carbon plate 54. The partition 51 is fixedly installed inside the housing 1. The exhaust pipe 52 is fixedly installed on the top of the partition 51. The annular shell 53 is rotatably sleeved on the exhaust pipe 52. The activated carbon plate 54 is distributed inside the annular shell 53. The annular shell 53 is connected to the exhaust pipe 52. The partition 51 is provided with a vent 45, which is connected to the annular shell 53. The enclosure also includes a drive assembly 6, which is located on the top of the housing 1 and is connected to the rotating pipe 44 and the annular shell 53 respectively. The fan 3 is located on the top of the housing 1 and is connected to the top of the exhaust pipe 52. The suction pipe 2 is connected to the housing 1.

[0039] Working principle: The high-temperature welding slag is blocked on the welding slag blocking cylinder 43 by the set fume filter component 4, and then filtered by the filter cylinder 42. The gas filtered by the filter cylinder 42 enters the annular shell 53 through the gas outlet 45, is purified again by the activated carbon plate 54, and then enters the exhaust pipe 52 and is sucked away by the fan 3 and discharged. The set drive component 6 drives the rotating tube 44 and the annular shell 53 to rotate synchronously. The rotating tube 44 drives the rotation of the filter cylinder 42 and the welding slag blocking cylinder 43, which facilitates the subsequent cleaning of impurities on the surface of the welding slag blocking cylinder 43. The annular shell 53 drives the rotation of the activated carbon plate 54, which can realize the replacement of the activated carbon plate 54, improve the utilization rate of the activated carbon plate 54, and increase the purification effect of the gas.

[0040] like Figure 6 , Figure 11 As shown, the drive assembly 6 includes a motor 61 and a rotating shaft 62. The motor 61 is fixedly mounted on the top of the housing 1. The top end of the rotating shaft 62 is fixedly connected to the output end of the motor 61. The bottom end of the rotating shaft 62 rotatably passes through the partition plate 51 via a sealed bearing. A first drive gear 63 and a second drive gear 64 are fixedly mounted on the rotating shaft 62. A first ring gear 65 is fixedly sleeved on the top of the annular housing 53. The first drive gear 63 meshes with the first ring gear 65. A second ring gear 66 is fixedly sleeved on the top of the rotating tube 44. The second drive gear 64 meshes with the second ring gear 66.

[0041] When the drive assembly 6 drives the rotating tube 44 and the annular housing 53 to rotate, the first drive gear 63 and the second drive gear 64 are coaxially connected and mesh with the first annular gear 65 and the second annular gear 66 respectively, thereby realizing the linkage effect of smoke filtration and gas purification. Furthermore, the rotation speed of the two gears can be adjusted by setting different sizes of the first annular gear 65 and the second annular gear 66, thereby realizing the function of adjusting the smoke filtration and gas purification rate.

[0042] like Figures 1-8 As shown, the bottom end of the welding slag blocking cylinder 43 is open, and its bottom end is folded outward to form an annular water storage tank 46. The fume filter assembly 4 also includes a scraper 47. The top end of the scraper 47 is fixedly disposed at the bottom of the partition plate 41. The scraper 47 contacts the side wall of the welding slag blocking cylinder 43, and its bottom end extends into the annular water storage tank 46. The welding slag blocking cylinder 43 is provided with filter holes 48, which are located above the annular water storage tank 46.

[0043] Working principle: Through the cooperation of the drive component 6 and the fume filter component 4, the welding slag blocking cylinder 43, the annular water storage tank 46 and the filter cylinder 42 can be rotated. The scraper 47 scrapes off the welding slag and other impurities on the side wall of the rotating welding slag blocking cylinder 43. The welding fumes come into contact with the filter cylinder 42 after passing through the filter holes 48. The side wall of the welding slag blocking cylinder 43 contains not only high-temperature welding slag, but also other impurities that cannot pass through the filter holes 48. All of these are scraped off by the relative rotation of the scraper 47 and the welding slag blocking cylinder 43 and fall down into the annular water storage tank 46. The annular water storage tank 46 contains clean water, which can cool and collect the impurities.

[0044] like Figures 1-8 As shown, a stirring unit 49 is also provided at the bottom end of the scraper 47. The stirring unit 49 includes a stirring rod 491, which is located in the annular water storage tank 46. One end of the stirring rod 491 is horizontally rotatably mounted on the scraper 47 via a bearing, and the other end of the stirring rod 491 is fixedly provided with a driven gear 492. An annular rack 493 is fixedly provided on the inner wall of the annular water storage tank 46, and the annular rack 493 meshes with the driven gear 492. A stirring blade 494 is fixedly provided on the stirring rod 491.

[0045] Working principle: Through the set stirring unit 49, when the annular water storage tank 46 rotates, the meshing of the annular rack 493 and the driven gear 492 can realize the rotation of the stirring rod 491, and then realize the rotation of the stirring blade 494. The stirring blade 494 can stir the impurities floating on the water surface into the water surface, preventing some light impurities from floating and accumulating on the water surface and causing blockage of the annular water storage tank 46.

[0046] like Figures 10-12 As shown, the gas purification assembly 5 also includes a diffuser 55, which is fixedly mounted on the top of the partition 2 51 and covers the diffuser port 45. A diffuser pipe 56 is horizontally connected to the diffuser 55. An air inlet pipe 57 is distributed on the outer annular inner wall of the annular shell 53, and each diffuser pipe 56 is connected to an air inlet pipe 57. An air outlet pipe 58 is distributed on the inner annular inner wall of the annular shell 53, and the air outlet pipe 58 is sealed to the outer wall of the exhaust pipe 52. A set of vents 59 is opened on the outer wall of the exhaust pipe 52, and each vent 59 is connected to an air outlet pipe 58. The vents 59 are located behind the exhaust pipe 52, and the diffuser 55 is located in front of the exhaust pipe 52. The bottom of the annular shell 53 is rotatably connected to the top of the partition 2 51 via an annular track 510.

[0047] Working principle: Through the cooperation of the gas purification component 5 and the drive component 6, the position of the activated carbon plate 54 can be switched. The change in the position of the activated carbon plate 54 ensures that each activated carbon plate 54 can contact the gas evenly, preventing the activated carbon plate 54 on the side closer to the diffuser pipe 56 from being overutilized while the activated carbon plate 54 on the side farther from the diffuser pipe 56 has a low utilization rate, thus improving the gas purification effect. The connection between the diffuser pipe 56 and the inlet pipe 57 is an arc-shaped opening, which makes it easy for the inlet pipe 57 to rotate to the diffuser pipe 56, preventing the gas from the outlet pipe 58 from diffusing into the space between the annular shell 53 and the exhaust pipe 52. When the outlet pipe 58 rotates to the vent 59, the gas in the outlet pipe 58 enters the vent 59.

[0048] like Figures 5-9 As shown, the bottom of the filter cartridge 42 is sealed, and there are locking blocks 421 distributed on the top edge of the filter cartridge 42. A connecting block 422 is fixed on the top wall inside the welding slag blocking cylinder 43. The connecting blocks 422 are distributed around the rotating tube 44. A slot 423 is opened on the connecting block 422. The locking block 421 is engaged with the slot 423, and the top of the filter cartridge 42 abuts against the bottom of the rotating tube 44.

[0049] The slot 423 on the connecting block 422 cooperates with the locking block 421 to facilitate the disassembly of the filter cartridge 42. During installation, the filter cartridge 42 is rotated to screw the locking block 421 into the slot 423. A stop block is provided on one side of the slot 423. After the locking block 421 is screwed into the slot 423, it abuts against the stop block to complete the installation. During disassembly, the filter cartridge 42 is rotated in the opposite direction to move the locking block 421 out of the slot 423 to complete the disassembly.

[0050] like Figure 2 , Figures 5-8As shown, the connection between the suction pipe 2 and the housing 1 is located between the annular water storage tank 46 and the partition 41. A sealing ring 424 is provided between the annular water storage tank 46 and the inner wall of the housing 1. The sealing ring 424 is fixed on the outer wall of the annular water storage tank 46 and slides in contact with the inner wall of the housing 1. The sealing ring 424 prevents impurities such as welding slag carried by the gas sucked in by the suction pipe 2 from entering the interior of the welding slag blocking cylinder 43 from the bottom, and then entering the filter cylinder 42, thus affecting the filtration effect.

[0051] like Figures 1-3 As shown, a water inlet pipe 7 is connected to one side of the housing 1. One end of the water inlet pipe 7 passes through the side wall of the housing 1 and extends vertically into the annular water storage tank 46. The bottom of the annular water storage tank 46 is provided with a drain hole, and a sealing plug 8 is inserted into the drain hole. A backflushing pipe 9 is connected to one side of the housing 1. One end of the backflushing pipe 9 passes through the side wall of the housing 1 and extends vertically into the rotating pipe 44 and the filter cartridge 42. An exhaust hood 10 is installed on the top of the housing 1. The exhaust hood 10 is provided with air holes, which allow for easy ventilation to the water inlet pipe 7. Water is added to the annular water storage tank 46, and the sewage in the annular water storage tank 46 is conveniently discharged to the bottom of the box 1 through the drain hole at the bottom of the annular water storage tank 46. An operation port 1 (not shown in the figure) is opened on one side of the bottom of the box 1. The operation port 1 is equipped with a sealed door. The filter cartridge 42 can be replaced and the annular water storage tank 46 can be drained through the operation port 1. An external air source is connected through the backwash pipe 9 to fill the filter cartridge 42 with gas, so as to achieve backwash cleaning of the filter cartridge 42 and make the dust on the outer surface of the filter cartridge 42 fall to the bottom of the box 1.

[0052] like Figures 10-11 As shown, the top of the annular shell 53 is provided with an insertion interface, and the activated carbon plate 54 is inserted into the annular shell 53 through the insertion interface. The air outlet pipe 58 and the air inlet pipe 57 are both located between the activated carbon plates 54. The top side of the box body 1 is provided with an operation port 2, which is also equipped with a sealing door. The activated carbon plate 54 can be easily replaced through the operation port 2.

[0053] In practical use, the suction pipe 2 is moved above the welding area, and the fan 3 is turned on. The fan 3 absorbs the fumes through the suction pipe 2. The slag blocking cylinder 43 is set to block and filter the high-temperature slag entering the box 1, so that the high-temperature slag is not easy to directly contact the filter cylinder 42 and damage the filter cylinder 42. The slag blocking cylinder 43 blocks the slag and allows the fumes to pass through. Then the fumes are filtered by the filter cylinder 42 and enter the rotating pipe 44. They enter the diffuser cylinder 55 through the diffuser port 45 on the partition 2 51. At this time, the diffuser pipe 56 is connected to one of the inlet pipes 57. The gas enters the annular shell 53 through the diffuser pipe 56 and the inlet pipe 57. The gas will pass along the inside of the annular shell 53 and move to the rear side. It passes through the spaced activated carbon plates 54. Finally, the gas surrounds the vent 59 and the inlet pipe 57 and enters the exhaust pipe 52.

[0054] Since the vent 59 on the exhaust pipe 52 is located at the rear of the exhaust pipe 52, while the diffuser pipe 56 is located at the front of the exhaust pipe 52, during operation, the intake pipe 57 at the front of the exhaust pipe 52 is aligned and connected with the diffuser pipe 56, while the other intake pipes 57 are temporarily not aligned and connected with the diffuser pipe 56. This allows the gas to pass through multiple sets of activated carbon plates 54, and then through the exhaust pipe 58 and the vent 59 before being drawn into the exhaust pipe 52, improving the gas filtration effect. At the same time, it also allows multiple sets of activated carbon plates 54 to be utilized, improving the utilization rate of the activated carbon plates 54.

[0055] When it is necessary to clean the welding slag accumulated on the welding slag blocking cylinder 43, stop the fan 3 to suck up air, and then start the motor 61. The motor 61 drives the rotating shaft 62 to rotate, which in turn drives the second drive gear 64 to rotate. The second drive gear 64 drives the second ring gear 66 to rotate, which in turn drives the rotating tube 44 to rotate. The rotating tube 44 drives the welding slag blocking cylinder 43, the annular water storage tank 46, and the filter cylinder 42 to rotate, preventing the filter cylinder 42 from facing the dust suction pipe 2 on one side for a long time, which would lead to uneven adsorption of impurities and achieve uniform utilization of the surface of the filter cylinder 42. At the same time, the scraper 47 scrapes the welding slag on the surface of the welding slag blocking cylinder 43. Slag and other impurities are scraped into the annular water storage tank 46. The water in the annular water storage tank 46 cools and collects the welding slag, preventing it from being carried away by the airflow and adhering to the surface of the welding slag blocking cylinder 43. At the same time, when the annular water storage tank 46 rotates, it also drives the annular gear 65 to rotate. The annular gear 65 drives the driven gear 492 to rotate, which in turn drives the stirring rod 491 to rotate, which in turn drives the stirring blade 494 to rotate. The stirring blade 494 can stir the impurities floating on the water surface into the water surface, preventing some light impurities from floating and accumulating on the water surface and causing blockage of the annular water storage tank 46.

[0056] Simultaneously, while cleaning the slag blocking cylinder 43, the rotating shaft 62 drives the drive gear 63 to rotate, which in turn drives the ring gear 65 to rotate, thereby driving the annular shell 53 to rotate, which in turn drives the activated carbon plate 54 to rotate. This causes the activated carbon plate 54 to change position, so that the activated carbon plate 54, which was previously far from the diffuser pipe 56, rotates to the side of the diffuser pipe 56. At the same time, a set of inlet pipes 57 is switched to align with the diffuser pipe 56. At this time, the position of the activated carbon plate 54 is switched, and the slag and other impurities on the slag blocking cylinder 43 are also cleaned. The change in the position of the activated carbon plate 54 ensures that each activated carbon plate 54 can be in uniform contact with the gas, preventing the activated carbon plate 54 on the side closer to the diffuser pipe 56 from being overused, while the activated carbon plate 54 on the side farther from the diffuser pipe 56 has a low utilization rate, thus improving the gas purification effect.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding fume dust removal and purification device, characterized in that: It includes a housing (1), a suction pipe (2), and a fan (3). The housing (1) is equipped with a smoke and dust filter assembly (4) and a gas purification assembly (5), wherein: The dust filtration assembly (4) includes a partition plate (41), a filter cartridge (42), a slag blocking cartridge (43), and a rotating tube (44). The partition plate (41) is fixedly installed inside the housing (1). The rotating tube (44) rotates through the partition plate (41) via a sealed bearing. The top end of the slag blocking cartridge (43) is fixedly sleeved onto the bottom end of the rotating tube (44). The filter cartridge (42) passes through the slag blocking cartridge (43) and connects to the bottom end of the rotating tube (44). The gas purification assembly (5) is located above the rotating tube (44). The gas purification assembly (5) includes a partition plate (51), an exhaust pipe (52), an annular shell (53), and an activated carbon plate (54). The partition plate (51) is fixedly installed inside the housing (1). Inside the housing (1), the exhaust pipe (52) is fixedly mounted on the top of the partition (51), the annular shell (53) is rotatably sleeved on the exhaust pipe (52), the activated carbon plate (54) is distributed inside the annular shell (53), the annular shell (53) is connected to the exhaust pipe (52), the partition (51) is provided with a vent (45), the vent (45) is connected to the annular shell (53), and a drive assembly (6) is also included. The drive assembly (6) is located on the top of the housing (1) and is connected to the rotating pipe (44) and the annular shell (53) respectively. The fan (3) is located on the top of the housing (1) and is connected to the top of the exhaust pipe (52). The dust suction pipe (2) is connected to the housing (1).

2. The welding fume dust removal and purification device according to claim 1, characterized in that: The drive assembly (6) includes a motor (61) and a rotating shaft (62). The motor (61) is fixedly mounted on the top of the housing (1). The top end of the rotating shaft (62) is fixedly connected to the output end of the motor (61). The bottom end of the rotating shaft (62) rotates through the partition plate (51) via a sealed bearing. A first drive gear (63) and a second drive gear (64) are fixedly mounted on the rotating shaft (62). A first ring gear (65) is fixedly sleeved on the top of the annular housing (53). The first drive gear (63) meshes with the first ring gear (65). A second ring gear (66) is fixedly sleeved on the top of the rotating tube (44). The second drive gear (64) meshes with the second ring gear (66).

3. The welding fume dust removal and purification device according to claim 2, characterized in that: The bottom end of the slag blocking cylinder (43) is open, and an annular water storage tank (46) is fixedly connected to the outside of its bottom end. The dust filter assembly (4) also includes a scraper (47). The top end of the scraper (47) is fixedly disposed at the bottom of the partition plate (41). The scraper (47) contacts the side wall of the slag blocking cylinder (43), and its bottom end extends into the annular water storage tank (46). The slag blocking cylinder (43) has filter holes (48) distributed on it. The filter holes (48) are located above the annular water storage tank (46).

4. The welding fume dust removal and purification device according to claim 3, characterized in that: The bottom end of the scraper (47) is also provided with a stirring unit (49). The stirring unit (49) includes a stirring rod (491). The stirring rod (491) is located in the annular water storage tank (46). One end of the stirring rod (491) is horizontally rotatably mounted on the scraper (47) through a bearing. The other end of the stirring rod (491) is fixedly provided with a driven gear (492). An annular rack (493) is fixedly provided on the inner wall of the annular water storage tank (46). The annular rack (493) meshes with the driven gear (492). The stirring rod (491) is fixedly provided with a stirring blade (494).

5. The welding fume dust removal and purification device according to claim 4, characterized in that: The gas purification assembly (5) further includes a diffuser (55), which is fixedly mounted on the top of the partition plate (51) and covers the diffuser opening (45). A diffuser pipe (56) is horizontally connected to the diffuser (55). An air inlet pipe (57) is distributed on the outer annular inner wall of the annular shell (53). Each diffuser pipe (56) is connected to an air inlet pipe (57). An air outlet pipe (58) is distributed on the inner annular inner wall of the annular shell (53). The exhaust pipe (58) is sealed to the outer wall of the exhaust pipe (52). A set of vents (59) are provided on the outer wall of the exhaust pipe (52). Each vent (59) is connected to the exhaust pipe (58). The vents (59) are located behind the exhaust pipe (52). The diffuser (55) is located in front of the exhaust pipe (52). The bottom of the annular shell (53) is rotatably connected to the top of the partition plate (51) through the annular track (510).

6. A welding fume dust removal and purification device according to any one of claims 1-5, characterized in that: The bottom of the filter cartridge (42) is sealed. The top edge of the filter cartridge (42) is provided with locking blocks (421). The top wall of the welding slag blocking cylinder (43) is fixed with connecting blocks (422). The connecting blocks (422) are distributed around the rotating tube (44). The connecting blocks (422) are provided with slots (423). The locking blocks (421) are engaged with the slots (423). The top of the filter cartridge (42) is in contact with the bottom of the rotating tube (44).

7. The welding fume dust removal and purification device according to claim 4, characterized in that: The connection between the suction pipe (2) and the box (1) is located between the annular water storage tank (46) and the partition (41). A sealing ring (424) is provided between the annular water storage tank (46) and the inner wall of the box (1). The sealing ring is fixed on the outer wall of the annular water storage tank (46) and slides in contact with the inner wall of the box (1).

8. The welding fume dust removal and purification device according to claim 7, characterized in that: A water inlet pipe (7) is connected to one side of the box (1). One end of the water inlet pipe (7) passes through the side wall of the box (1) and extends vertically into the annular water storage tank (46). The bottom of the annular water storage tank (46) is provided with a drain hole, and a sealing plug (8) is inserted into the drain hole. An exhaust hood (10) is installed on the top of the box (1), and the exhaust hood (10) is provided with air holes.

9. The welding fume dust removal and purification device according to claim 5, characterized in that: The top of the annular shell (53) is provided with an insertion interface, and the activated carbon plate (54) is inserted into the annular shell (53) through the insertion interface. The air outlet pipe (58) and the air inlet pipe (57) are both located between the activated carbon plates (54).

10. The welding fume dust removal and purification device according to claim 1, characterized in that: One side of the housing (1) is connected to a backflush pipe (9), and one end of the backflush pipe (9) passes through the side wall of the housing (1) and extends vertically into the rotating pipe (44) and the filter cartridge (42).

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