Air purification device for industrial papermaking

Abstract

The invention relates to an air purification device for industrial papermaking, and belongs to the technical field of air purification, the air purification device comprises a machine shell and a fan, the fan is fixedly connected with one side wall of the machine shell, an air inlet is formed in one side of the machine shell, a scraper is arranged in the machine shell, and a first moving assembly used for driving the scraper to move is arranged on the machine shell; a replacement opening is formed in one side of the machine shell, a plugging plate is arranged at the replacement opening of the machine shell, first auxiliary shells are fixedly arranged on the two opposite sides of the machine shell correspondingly, a U-shaped frame is arranged at the replacement opening, the U-shaped frame is slidably connected with the first auxiliary shells, sliding grooves are formed in the inner walls of the two opposite sides of the U-shaped frame along the side edges, and the sliding grooves penetrate through one side wall of the opening end of the U-shaped frame. A U-shaped frame is arranged in the machine shell, a multi-stage filter screen is arranged in the U-shaped frame, the two opposite ends of the multi-stage filter screen extend into sliding grooves in the two sides of the U-shaped frame correspondingly, a second moving assembly capable of driving the U-shaped frame to move in the horizontal direction is arranged in the machine shell, and the effect of improving the maintenance work efficiency of the air purification device is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of air purification, and particularly to an air purification device for industrial papermaking. Background Art

[0002] Currently, the air purification devices used in industrial papermaking are mainly used to remove dust, harmful gases and odors generated during the production process, ensure that the air quality in the workshop meets environmental protection standards, protect the health of workers, and at the same time prevent pollutants from affecting the quality of paper. In addition, it can also reduce emissions and meet the requirements of environmental protection regulations.

[0003] The existing air purification device consists of a housing assembly, a filtration system and a power unit. The specific structure is as follows: There is an air inlet on one side of the housing, and a multi-stage filter screen group is configured inside it by bolting. A centrifugal fan connected to the inside is fixedly installed on the outside. When the device is running, the fan generates negative pressure to guide external air to enter the housing through the air inlet, complete purification through the multi-stage filter screen group, and finally discharge clean air through the fan outlet. After the purification device has been running for a period of time, it is necessary to regularly open the housing. Workers use tools to disassemble and replace the filter screen, and at the same time manually clean the dust attached to the inner wall of the housing to ensure smooth air ducts and avoid dust accumulation from affecting the filtration efficiency or increasing the air resistance.

[0004] In view of the above related technologies, when replacing the filter screen, it is necessary to first use tools to disassemble the fixing bolts, take out the old filter screen and manually clean the inner wall of the housing, and then install a new filter screen by bolting. This process is cumbersome, time-consuming and laborious, and thus there is a defect of low maintenance efficiency of the air purification device. Summary of the Invention

[0005] In order to improve the working efficiency of the maintenance of the air purification device, the present application provides an air purification device for industrial papermaking.

[0006] The air purification device for industrial papermaking provided by the present application adopts the following technical solutions: An air purification device for industrial papermaking, comprising a casing and a fan, wherein the fan is fixedly connected and communicated with a side wall of the casing, an air inlet is provided on one side of the casing, a scraper is provided inside the casing, one end of the scraper abuts against the inner wall of the casing, a first moving component for driving the scraper to move in a vertical direction is provided on the casing, a replacement port is provided on one side of the casing, a blocking plate is provided at the replacement port, first auxiliary casings are fixedly provided on opposite sides of the casing, the first auxiliary casing is communicated with the casing, and a A U-shaped frame, the opposite ends of the U-shaped frame respectively extend into the first auxiliary shells on both sides, the U-shaped frame and the first auxiliary shell are slidably connected, the side of the U-shaped frame facing the replacement port is an open end, and the inner walls on the opposite sides of the U-shaped frame are provided with sliding grooves along the sides, and the sliding grooves penetrate through one side wall of the open end of the U-shaped frame. A multi-stage filter screen is arranged in the U-shaped frame, and the opposite ends of the multi-stage filter screen respectively extend into the sliding grooves on both sides of the U-shaped frame, and a second moving component capable of driving the U-shaped frame to move in a horizontal direction is arranged in the casing, and the casing is provided with a debris outlet below the replacement port.

[0007] By adopting the above technical solution, when replacing the multi-stage filter, the blocking plate moves first to release the blockage of the replacement port. Subsequently, the second moving component is started, pushing the U-shaped frame to move toward the replacement port, driving the multi-stage filter to move out of the casing. The staff pulls out the multi-stage filter from the open end of the U-shaped frame and moves it along the slide until it is detached from the U-shaped frame. Then, slide the new multi-stage filter into the U-shaped frame along the slide. At the same time, the first moving component drives the scraper to move downward to scrape off impurities attached to the inner wall of the casing. The impurities fall to the bottom of the casing and are discharged through the impurity outlet. After completion, the first moving component resets the scraper, the second moving component resets the U-shaped frame, and the blocking plate re-blocks the replacement port. This process does not require the removal of bolts or manual cleaning of the inner wall of the casing, which significantly improves the maintenance efficiency of the air purification device.

[0008] Optionally, a second auxiliary shell is fixedly provided at two opposite ends of one side wall of the casing, the second auxiliary shell is vertically arranged, the second auxiliary shell and the casing are communicated with each other, the first moving component includes a first screw and a first moving block, two of the first screw and the first moving block are each provided and correspond to each other, the first screw is vertically arranged in the second auxiliary shell and corresponds to each other, the bottom end of the first screw is rotatably connected to the bottom wall of the second auxiliary shell, the upper end of the first screw passes through the second auxiliary shell and is rotatably connected to the second auxiliary shell, the first moving block is arranged on the first screw, the first screw passes through the first moving block and is threadedly connected to the first moving block, the scraper is in a closed loop, a moving frame is arranged at the scraper, the scraper and the moving frame are fixedly connected, the side of the first moving block facing the inside of the casing is fixedly connected to the moving frame, and a driving component for driving the two first screws to rotate synchronously is arranged on the casing.

[0009] By adopting the above technical solution, the driving component drives the two first screws to rotate synchronously. Under the guiding action of the moving frame, the first screws drive the moving frame to move, and the moving frame drives the scraper to move. Thus, the first moving component realizes the function of driving the scraper to move.

[0010] Optionally, a motor is fixedly installed at the upper end of the second auxiliary housing. The output shaft of the motor is fixedly connected to the upper end of one of the two first screws. The driving component includes synchronous pulleys and a synchronous belt. There are two synchronous pulleys, which are respectively fixedly installed on the two first screws, and the synchronous belt is sleeved on the two synchronous pulleys.

[0011] By adopting the above technical solution, when the motor is started, the motor drives the first screw connected thereto to rotate. The first screw drives the synchronous pulley connected thereto to rotate. The synchronous pulley drives the synchronous belt to rotate. The synchronous belt drives the synchronous pulley far from the motor to rotate. The synchronous pulley drives the first screw to rotate. Thus, the driving component realizes the function of driving the two first screws to rotate synchronously.

[0012] Optionally, support plates are fixedly installed on the outer walls of the opposite sides of the housing. Threaded sleeves are arranged on the support plates. The threaded sleeves penetrate through the support plates and are rotatably connected to the support plates. The threaded sleeves are threadedly connected with second screws. Connecting rods are fixedly installed at the opposite ends of the sealing plate. The bottom ends of the second screws are fixedly connected to the connecting rods and correspond one by one. A first rotating component for driving the threaded sleeve to rotate is arranged at the housing.

[0013] By adopting the above technical solution, the rotating component drives the threaded sleeve to rotate. Under the guiding action of the sealing plate, the threaded sleeve drives the second screw to move in the vertical direction. The second screw drives the connecting rod to move. The connecting rod drives the sealing plate to move, eliminating the need for staff to manually move the sealing plate, thus facilitating the work of the staff.

[0014] Optionally, a rotating rod is arranged at the support plate. The rotating rod penetrates through one side wall of the housing and is rotatably connected to the housing. The first rotating component includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the end of the rotating rod outside the housing. The second bevel gear is arranged on the threaded sleeve. The threaded sleeve penetrates through the second bevel gear and is fixedly connected to the second bevel gear. The first bevel gear and the second bevel gear are meshed. A power component for providing power for the rotation of the rotating rod is arranged inside the housing.

[0015] By adopting the above technical solution, the power component drives the rotating rod to rotate. The rotating rod drives the first bevel gear to rotate. The first bevel gear drives the second bevel gear to rotate. The second bevel gear drives the threaded sleeve to rotate. Thus, the rotating component realizes the function of driving the threaded sleeve to rotate.

[0016] Optionally, the power assembly includes a first rack and a first gear. There are two first racks and two first gears, which correspond to each other one by one. The first rack is fixedly connected to the upper surface of the moving frame. One end of the first gear and the rotating rod located inside the housing are fixedly connected and correspond to each other one by one. The first rack and the first gear are meshed and matched and correspond to each other one by one.

[0017] By adopting the above technical solution, during the downward movement of the moving frame, the first rack drives the first gear to rotate, and the first gear drives the rotating rod to rotate. When the blocking plate releases the blocking of the replacement port, the first rack and the first gear are disengaged, and then the U-shaped frame moves towards the outside of the housing; when the scraper resets, after the U-shaped frame moves into the housing, the first rack meshes with the first gear again and drives the first gear to rotate, so that the blocking plate blocks the replacement port again. Thus, the power assembly realizes the function of providing power for the rotation of the rotating rod.

[0018] Optionally, one end of the first auxiliary housing is communicated with the second auxiliary housing. The second moving assembly includes a third screw rod and a second moving block. There are two third screw rods and two second moving blocks, which correspond to each other one by one. The third screw rods are arranged in the first auxiliary housing and correspond to each other one by one. The third screw rods are rotatably connected between the opposite inner walls of the first auxiliary housing. The second moving blocks are arranged on the third screw rods. The third screw rods penetrate through the second moving blocks and are threadedly connected with the second moving blocks. A second rotating assembly for driving the third screw rod to rotate is arranged at the communication part of the first auxiliary housing and the second auxiliary housing.

[0019] By adopting the above technical solution, the rotating assembly drives the third screw rod to rotate. Under the guiding action of the U-shaped frame, the third screw rod drives the second moving block to move along the first auxiliary housing. The second moving block drives the U-shaped frame to move, and the U-shaped frame drives the multi-stage filter screen to move. Thus, the second moving assembly realizes the function of driving the U-shaped frame to move.

[0020] Optionally, the second rotating assembly includes a second rack and a second gear. The second rack is fixedly connected to the lower surface of the first moving block. The length direction of the second rack is parallel to the moving direction of the scraper. The second gear is arranged on the third screw rod. The third screw rod penetrates through the second gear and is fixedly connected with the second gear. The second gear and the second rack are meshed and matched.

[0021] By adopting the above technical solution, during the downward movement of the scraper, after the blocking plate releases the blocking of the replacement port, the second rack and the second gear are meshed. Under the guiding action of the second rack, the second gear rotates, and the second gear drives the third screw rod to rotate. Thus, the rotating assembly realizes the function of driving the third screw rod to rotate.

[0022] Optionally, a first avoidance opening is provided above the replacement opening of the casing. A first partition is slidably connected to the casing at the first avoidance opening. The air blower is located between the first partition and the multi-stage filter screen. Two first baffles for blocking the connection between the second auxiliary casing and the casing are fixedly provided between the first partition and the U-shaped frame.

[0023] By adopting the above technical solution, when purifying air, the first partition blocks the flowing air, making it difficult for impurities in the air to adhere to the upper top wall of the casing. At the same time, the first baffle blocks the connection between the second auxiliary casing and the casing, making it difficult for the flowing air to enter the second auxiliary casing. And at this time, the scraper is located above the first partition. During the process of the U-shaped frame moving out of the casing, the U-shaped frame drives the first baffle to move, and the first baffle drives the first partition to move. After the U-shaped frame moves to the set position, at this time, the scraper moves to the first partition. At the same time, during the movement of the first partition, the impurities attached to the lower surface of the first partition are blocked by the lower side wall of the first avoidance opening, and the impurities are separated from the first partition, thereby improving the effect of cleaning the casing.

[0024] Optionally, a second avoidance opening is provided below the replacement opening of the casing. A second partition is slidably connected to the casing at the second avoidance opening. The air inlet is located between the second partition and the multi-stage filter screen. Two second baffles for blocking the connection between the second auxiliary casing and the casing are fixedly provided between the second partition and the U-shaped frame.

[0025] By adopting the above technical solution, during the process of the U-shaped frame moving out of the casing, the U-shaped frame drives the second baffle to move, and the second baffle drives the second partition to move, making it difficult for the second partition to obstruct the downward movement of impurities. When purifying air, the second partition blocks the flowing air, making it difficult for impurities in the air to adhere to the inner wall of the casing below the second partition. At the same time, the second baffle blocks the connection between the second auxiliary casing and the casing, making it difficult for the flowing air to enter the second auxiliary casing. At the same time, when the scraper moves to the second partition, the cleaning of the inner wall of the casing is completed.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The second moving component drives the U-shaped frame to move, driving the multi-stage filter screen out of the casing. The staff pulls out the multi-stage filter screen from the open end of the U-shaped frame, separates it from the U-shaped frame and replaces it with a new filter screen. At the same time, the first moving component drives the scraper to move, scraping off the impurities attached to the inner wall of the casing, and the impurities are discharged through the impurity outlet. After the maintenance is completed, the first moving component drives the scraper to reset, and the second moving component pushes the U-shaped frame to reset. There is no need to disassemble bolts or manually clean the inner wall of the casing throughout the process, thereby improving the maintenance efficiency of the air purification device; 2. Through the setting of the first gear and the first rack, there is no need to provide power for the rotation of the rotating rod alone, saving resources; 3. By providing the second gear and the second rack, there is no need to provide power for the rotation of the third screw rod separately, thus saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an air purification device for industrial papermaking according to an embodiment of the present application; Figure 2 is a cross-sectional view showing the internal structure of the casing in the embodiment of the present application; Figure 3 is a cross-sectional view showing the internal structure of the second auxiliary shell in the embodiment of the present application; Figure 4 It is a cross-sectional view showing the internal structure of the first auxiliary shell in the embodiment of the present application.

[0028] In the figure, 1, housing; 11, fan; 12, air inlet; 13, scraper; 14, replacement port; 15, blocking plate; 16, outlet; 17, moving frame; 18, first avoidance port; 181, first partition; 182, first baffle; 19, second avoidance port; 191, second partition; 192, second baffle; 2, first moving assembly; 21, first screw; 22, first moving block; 3, first auxiliary housing; 31, U-shaped frame; 311, slide; 32, multi-stage filter; 4, first Second moving assembly; 41, third screw; 42, second moving block; 5, second auxiliary shell; 51, motor; 52, second rotating assembly; 521, second rack; 522, second gear; 6, driving assembly; 61, synchronous wheel; 62, synchronous belt; 7, supporting plate; 71, threaded sleeve; 72, second screw; 73, rotating rod; 74, connecting rod; 8, first rotating assembly; 81, first bevel gear; 82, second bevel gear; 9, power assembly; 91, first rack; 92, first gear. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1 - 4 This application is described in further detail.

[0030] The embodiment of the present application discloses an air purification device for industrial papermaking.

[0031] refer to Figure 1 An air purification device for industrial papermaking includes a casing 1, a fan 11 is fixedly provided on one side of the casing 1, second auxiliary casings 5 ​​are fixedly provided at opposite ends of the casing 1 away from the fan 11, the second auxiliary casings 5 ​​are vertically arranged, first auxiliary casings 3 are fixedly provided on opposite sides of the casing 1, the first auxiliary casing 3 and the second auxiliary casing 5 are not located on the same side wall of the casing 1, the length direction of the first auxiliary casing 3 is perpendicular to the length direction of the second auxiliary casing 5, and a motor 51 is fixedly provided on the upper end of one of the two second auxiliary casings 5.

[0032] refer toFigure 1 , Figure 2 and Figure 3 , there is a scraper 13 inside the casing 1. The scraper 13 is horizontally arranged and is in a closed-loop shape. One end of the scraper 13 abuts against the inner wall of the casing 1. There is a moving frame 17 at the scraper 13. The moving frame 17 is parallel to the scraper 13. The scraper 13 and the moving frame 17 are fixedly connected. The second auxiliary casing 5 is communicated with the casing 1. There is a first moving component 2 for driving the moving frame 17 to move in the vertical direction at the second auxiliary casing 5.

[0033] The first moving component 2 includes a first screw rod 21 and a first moving block 22. There are two of each of the first screw rod 21 and the first moving block 22 and they correspond one by one. The two first screw rods 21 are respectively arranged in the two second auxiliary casings 5. The length direction of the first screw rod 21 is parallel to the length direction of the second auxiliary casing 5. The bottom end of the first screw rod 21 is rotatably connected to the bottom wall of the first auxiliary casing 3. The upper end of the first screw rod 21 penetrates through the second auxiliary casing 5 and is rotatably connected to the second auxiliary casing 5. The output shaft of the motor 51 is fixedly connected to the upper end of the adjacent first screw rod 21. The first moving block 22 is arranged on the first screw rod 21. The first screw rod 21 penetrates through the first moving block 22 and is threadedly connected to the first moving block 22. The side of the first moving block 22 facing the inside of the casing 1 is fixedly connected to the moving frame 17. There is a driving component 6 for driving the two first screw rods 21 to rotate synchronously at the second auxiliary casing 5.

[0034] The driving component 6 includes a synchronous pulley 61 and a synchronous belt 62. There are two synchronous pulleys 61. The two synchronous pulleys 61 are respectively fixedly connected to the upper ends of the two first screw rods 21. The synchronous belt 62 is sleeved outside the two synchronous pulleys 61.

[0035] When cleaning the inner wall of the casing 1, start the motor 51. The motor 51 drives the first screw rod 21 connected thereto to rotate. The first screw rod 21 drives the synchronous pulley 61 connected thereto to rotate. The synchronous pulley 61 drives the synchronous belt 62 to rotate. The synchronous belt 62 drives the synchronous pulley 61 far from the motor 51 to rotate. The synchronous pulley 61 drives the first screw rod 21 far from the motor 51 to rotate. Under the guiding action of the moving frame 17, the first screw rod 21 drives the first moving block 22 to move. The first moving block 22 drives the moving frame 17 to move. The moving frame 17 drives the scraper 13 to move. The scraper 13 scrapes the impurities on the inner wall of the casing 1, so that the impurities are separated from the inner wall of the casing 1, and the impurities fall downward and land on the inner bottom wall of the casing 1.

[0036] Reference Figure 2 , Figure 3 and Figure 4A side wall of the casing 1 facing away from the fan 11 is provided with an air inlet 12, a side wall of the casing 1 connected to the fan 11 is provided with a replacement port 14, the replacement port 14 is located below the fan 11, and a blocking plate 15 for blocking the replacement port 14 is provided at the replacement port 14, the first auxiliary shell 3 is connected to the casing 1, the first auxiliary shell 3 is connected to the replacement port 14, a U-shaped frame 31 is provided at the replacement port 14, both ends of the U-shaped frame 31 extend into the first auxiliary shell 3 on both sides and are slidably connected to the first auxiliary shell 3, and sliding grooves 311 are provided on the inner walls of the opposite sides of the U-shaped frame 31, a multi-stage filter screen 32 is provided in the U-shaped frame 31, and the opposite ends of the multi-stage filter screen 32 extend into the sliding grooves 311 on both sides, and the multi-stage filter screen 32 is slidably connected to the U-shaped frame 31, and a second moving component 4 for driving the U-shaped frame 31 to move horizontally is provided at the first auxiliary shell 3.

[0037] The second moving component 4 includes a third screw 41 and a second moving block 42, and two of the third screw 41 and the second moving block 42 are provided and correspond one to one. The third screw 41 is arranged in the first auxiliary shell 3 along the length direction of the first auxiliary shell 3 and corresponds one to one. The two ends of the third screw 41 are respectively rotatably connected to the inner walls of the opposite sides of the first auxiliary shell 3. The second moving block 42 is arranged on the third screw 41. The third screw 41 penetrates the second moving block 42 and is threadedly connected with the second moving block 42. The side of the second moving block 42 facing the inside of the casing 1 is fixedly connected to the U-shaped frame 31, and the end of the first auxiliary shell 3 close to the second auxiliary shell 5 is connected to the second auxiliary shell 5. The second rotating component 52 that can drive the third screw 41 to rotate is provided at the connection between the second auxiliary shell 5 and the first auxiliary shell 3.

[0038] The second rotating assembly 52 includes a second rack 521 and a second gear 522. The second rack 521 and the first moving block 22 are fixedly connected and correspond one to one. The length direction of the second rack 521 is parallel to the length direction of the second auxiliary shell 5. The second gear 522 is arranged at one end of the third screw 41. The third screw 41 passes through the second gear 522 and the second gear 522 is fixedly connected. The second gear 522 and the second rack 521 are meshed and matched.

[0039] During the downward movement of the first moving block 22, the first moving block 22 drives the second rack 521 to move. During the movement of the second rack 521, the second rack 521 first meshes with the second gear 522. Under the guiding action of the second rack 521, the second gear 522 rotates. The second gear 522 drives the third screw rod 41 to rotate. Under the guiding action of the second auxiliary housing 5, the third screw rod 41 drives the second moving block 42 to move. The second moving block 42 drives the U-shaped frame 31 to move. The U-shaped frame 31 drives the multi-stage filter screen 32 to move. After the multi-stage filter screen 32 is moved out of the housing 1 from the replacement port 14, the second rack 521 and the second gear 522 are disengaged. At this time, the scraper 13 is still above the replacement port 14 and pulls the multi-stage filter screen 32 away from the housing 1. The multi-stage filter screen 32 slides out of the chute 311, and a new multi-stage filter screen 32 is replaced. At the same time, after the scraper 13 moves upward and moves above the replacement port 14, the second rack 521 meshes with the second gear 522 again, driving the second gear 522 to rotate, so that the U-shaped frame 31 moves into the housing 1. After the U-shaped frame 31 moves to the set position, the second rack 521 and the second gear 522 are disengaged again.

[0040] Reference Figure 1 、 Figure 2 and Figure 3 On both opposite sides of the housing 1, support plates 7 are fixedly provided. The support plates 7 are horizontally arranged and are directly above the first auxiliary housing 3. A threaded sleeve 71 is provided on the support plate 7. The threaded sleeve 71 penetrates through the support plate 7 and is rotatably connected to the support plate 7. A second screw rod 72 is threadedly connected to the threaded sleeve 71. A connecting rod 74 is fixedly provided at the bottom end of the second screw rod 72. At the replacement port 14 of the housing 1, a sealing plate 15 for sealing the replacement port 14 is provided. Both ends of the two connecting rods 74 away from the second screw rod 72 are fixedly connected to the sealing plate 15. A rotating rod 73 is provided at the support plate 7. The length direction of the rotating rod 73 is perpendicular to the length direction of the threaded sleeve 71. The rotating rod 73 penetrates through a side wall of the housing 1 and is rotatably connected to the housing 1. A first rotating assembly 8 for driving the threaded sleeve 71 to rotate is provided at the rotating rod 73.

[0041] The first rotating assembly 8 includes a first bevel gear 81 and a second bevel gear 82. The first bevel gear 81 is fixedly connected to the end of the rotating rod 73 outside the housing 1. The second bevel gear 82 is arranged on the threaded sleeve 71. The threaded sleeve 71 penetrates through the second bevel gear 82 and is fixedly connected to the second bevel gear 82. The first bevel gear 81 and the second bevel gear 82 are meshed. A power assembly 9 for providing power for the rotation of the rotating rod 73 is provided inside the housing 1.

[0042] The power assembly 9 includes a first rack 91 and a first gear 92. There are two of each of the first rack 91 and the first gear 92 and they correspond one by one. The two first racks 91 are respectively fixedly connected to the opposite ends of the upper surface of the moving frame 17. The first gear 92 is fixedly connected to and corresponds one by one with one end of the rotating rod 73 inside the machine housing 1. The first rack 91 and the first gear 92 are meshed and matched.

[0043] When the moving frame 17 moves downward, the moving block drives the first rack 91 to move. The first rack 91 meshes with the first gear 92, driving the first gear 92 to rotate. The first gear 92 drives the rotating rod 73 to rotate. The rotating rod 73 drives the first bevel gear 81 to rotate. The first bevel gear 81 drives the second bevel gear 82 to rotate. The second bevel gear 82 drives the threaded sleeve 71 to rotate. Under the guiding action of the connecting rod 74, the threaded sleeve 71 drives the second screw rod 72 to move in the vertical direction. The second screw rod 72 drives the connecting rod 74 to move. The connecting rod 74 drives the blocking plate 15 to move. After the blocking plate 15 removes the blockage of the replacement port 14, the first rack 91 and the first gear 92 disengage, and then the U-shaped frame 31 starts to move out of the machine housing 1. During the upward movement of the moving frame 17, after the U-shaped frame 31 enters the machine housing 1, the first rack 91 and the first gear 92 mesh again and drive the first gear 92 to reverse, causing the blocking plate 15 to move downward and the blocking plate 15 to block the replacement port 14 again.

[0044] Reference Figure 1 and Figure 2 With reference to Figure 1 and Figure 2 , the machine housing 1 is provided with a first avoidance opening 18 above the replacement port 14. A first partition plate 181 is slidably connected to the machine housing 1 at the first avoidance opening 18. The first partition plate 181 is parallel to the U-shaped frame 31 and is above the air blower 11. Two first baffle plates 182 for blocking the connection between the second auxiliary housing 5 and the machine housing 1 are fixedly provided between the first partition plate 181 and the U-shaped frame 31. The length direction of the first baffle plate 182 is perpendicular to the first partition plate 181.

[0045] When purifying the air, after the outside air enters the machine housing 1, the first partition plate 181 blocks the air flow, making it difficult for the air to rise above the first partition plate 181. At the same time, the first baffle plate 182 blocks the air flow, making it difficult for the air flow to enter the second auxiliary housing 5. When the U-shaped frame 31 moves out of the machine housing 1, the U-shaped frame 31 drives the first baffle plate 182 to move. The first baffle plate 182 drives the first partition plate 181 to move. The first partition plate 181 moves out of the machine housing 1, making it difficult for the first partition plate 181 to affect the movement of the scraper 13.

[0046] Reference Figure 1 and Figure 2The casing 1 is provided with a second avoidance opening 19 below the replacement opening 14, and a second partition 191 is provided inside the casing 1. The second partition 191 is horizontally arranged, and one end of the second partition 191 extends to the second avoidance opening 19. The second partition 191 is slidably connected to the casing 1, and two second baffles 192 for blocking the connection between the second auxiliary shell 5 and the casing 1 are fixed between the second baffle 191 and the U-shaped frame 31. The second baffle 192 and the second partition 191 are vertical, and the second baffle 191 is below the air inlet 12. The casing 1 has a diffuse outlet 16 extending through the bottom end.

[0047] When purifying air, after the air enters the housing 1, the second partition 191 blocks the air, making it difficult for the air to flow to the bottom of the second partition 191, so that the interior of the housing 1 below the second partition 191 is not easy to adhere to impurities, and no cleaning is required. In the process of the U-shaped frame 31 moving out of the housing 1, the U-shaped frame 31 drives the second baffle 192 to move, and the second baffle 192 drives the second baffle 191 to move. After the second baffle 192 moves to the outside of the housing 1, the scraper 13 moves to the first baffle 181 and continues to move downward. When the scraper 13 moves to the second baffle 191, the cleaning of the inner wall of the housing 1 is completed, and the scraper 13 does not need to move to the bottom of the housing 1, thereby facilitating the movement of the second rack 521. Finally, the impurities are cleaned out of the housing 1 from the impurity outlet 16.

[0048] The implementation principle of an air purification device for industrial papermaking in the embodiment of the present application is as follows: when performing maintenance, the first moving component 2 first drives the scraper 13 to move downward to release the blocking of the replacement port 14 by the blocking plate 15. Subsequently, the second moving component 4 drives the U-shaped frame 31 to move out of the casing 1, and the U-shaped frame 31 pulls the multi-stage filter 32 out together. When the scraper 13 moves to the position of the first partition 181, the U-shaped frame 31 has completely moved the multi-stage filter 32 out of the casing 1. At this time, the multi-stage filter 32 can be pulled in a direction away from the casing 1 to separate it from the U-shaped frame 31, so as to facilitate the replacement of a new filter. At the same time, the scraper 13 scrapes off the impurities on the inner wall of the casing 1 during the movement, and the impurities fall downward. When the scraper 13 moves to the position of the second partition 191, the cleaning work of the inner wall of the casing 1 is completed, and the impurities can be discharged through the outlet 16. Next, the first moving assembly 2 drives the scraper 13 to move upward. When the scraper 13 reaches the position of the second partition 191, the second moving assembly 4 pushes the U-shaped frame 31 to move into the housing 1. After the U-shaped frame 31 completely enters the housing 1, the blocking plate 15 blocks the replacement port 14 again, and the maintenance process is completed. The entire maintenance process does not require the removal of bolts or manual cleaning of the inner wall of the housing 1, which improves the maintenance efficiency of the air purification device.

[0049] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An air purification device for industrial papermaking, comprising a casing (1) and a fan (11), the fan (11) is fixedly connected to and communicated with a side wall of the casing (1), and an air inlet (12) is provided on one side of the casing (1), characterized in that: Inside the casing (1), a scraping blade (13) is provided. One end of the scraping blade (13) abuts against the inner wall of the casing (1). On the casing (1), a first moving component (2) is provided for driving the scraping blade (13) to move in the vertical direction. A replacement opening (14) is formed on one side of the casing (1). At the replacement opening (14) of the casing (1), a sealing plate (15) is provided. On both opposite sides of the casing (1), first auxiliary casings (3) are fixedly provided. The first auxiliary casings (3) communicate with the casing (1). At the replacement opening (14), a U-shaped frame (31) is provided. The opposite ends of the U-shaped frame (31) extend into the first auxiliary casings (3) on both sides respectively. The U-shaped frame (31) is slidably connected to the first auxiliary casings (3). The side of the U-shaped frame (31) facing the replacement opening (14) is the open end. On the inner walls of the opposite sides of the U-shaped frame (31), sliding grooves (311) are formed along the side edges. The sliding grooves (311) penetrate through one side wall of the open end of the U-shaped frame (31). Inside the U-shaped frame (31), a multi-stage filter screen (32) is provided. The opposite ends of the multi-stage filter screen (32) extend into the sliding grooves (311) on both sides of the U-shaped frame (31) respectively. Inside the casing (1), a second moving component (4) is provided that can drive the U-shaped frame (31) to move in the horizontal direction. Below the replacement opening (14) of the casing (1), a waste outlet (16) is formed.

2. The air purification device for industrial papermaking according to claim 1, characterized in that: On both opposite ends of one side wall of the casing (1), second auxiliary casings (5) are fixedly provided. The second auxiliary casings (5) are vertically arranged and communicate with the casing (1). The first moving component (2) includes a first screw rod (21) and a first moving block (22). There are two first screw rods (21) and two first moving blocks (22), which are in one-to-one correspondence. The first screw rods (21) are vertically arranged in the second auxiliary casings (5) in one-to-one correspondence. The bottom end of the first screw rod (21) is rotatably connected to the bottom wall of the second auxiliary casing (5). The upper end of the first screw rod (21) penetrates through the second auxiliary casing (5) and is rotatably connected to the second auxiliary casing (5). The first moving block (22) is arranged on the first screw rod (21). The first screw rod (21) penetrates through the first moving block (22) and is threadedly connected to the first moving block (22). The scraping blade (13) is in a closed loop shape. A moving frame (17) is provided at the scraping blade (13). The scraping blade (13) is fixedly connected to the moving frame (17). The side of the first moving block (22) facing the inside of the casing (1) is fixedly connected to the moving frame (17). On the casing (1), a driving component (6) is provided for driving the two first screw rods (21) to rotate synchronously.

3. An air purification device for industrial papermaking according to claim 2, characterized in that: At the upper end of the second auxiliary casing (5), a motor (51) is fixedly provided. The output shaft of the motor (51) is fixedly connected to the upper end of one of the two first screw rods (21). The driving component (6) includes a synchronous pulley (61) and a synchronous belt (62). There are two synchronous pulleys (61). The two synchronous pulleys (61) are respectively fixedly provided on the two first screw rods (21). The synchronous belt (62) is sleeved on the two synchronous pulleys (61).

4. An air purification device for industrial papermaking according to claim 2, characterized in that: Support plates (7) are fixedly provided on the outer walls of the opposite sides of the housing (1). A threaded sleeve (71) is arranged on the support plate (7). The threaded sleeve (71) penetrates through the support plate (7) and is rotatably connected to the support plate (7). A second screw rod (72) is threadedly connected to the threaded sleeve (71). Connecting rods (74) are fixedly provided at the opposite two ends of the sealing plate (15). The bottom ends of the second screw rods (72) are fixedly connected to the connecting rods (74) in a one-to-one correspondence. A first rotating assembly (8) for driving the threaded sleeve (71) to rotate is arranged at the housing (1).

5. An air purification device for industrial papermaking according to claim 4, characterized in that: A rotating rod (73) is arranged at the support plate (7). The rotating rod (73) penetrates through one side wall of the housing (1) and is rotatably connected to the housing (1). The first rotating assembly (8) includes a first bevel gear (81) and a second bevel gear (82). The first bevel gear (81) is fixedly connected to the end of the rotating rod (73) outside the housing (1). The second bevel gear (82) is arranged on the threaded sleeve (71). The threaded sleeve (71) penetrates through the second bevel gear (82) and is fixedly connected to the second bevel gear (82). The first bevel gear (81) and the second bevel gear (82) are meshed. A power assembly (9) for providing power for the rotation of the rotating rod (73) is arranged inside the housing (1).

6. An air purification device for industrial papermaking according to claim 5, characterized in that: The power assembly (9) includes first racks (91) and first gears (92). There are two first racks (91) and first gears (92) respectively and they are in one-to-one correspondence. The first racks (91) are fixedly connected to the upper surface of the moving frame (17). The first gears (92) are fixedly connected to the ends of the rotating rod (73) inside the housing (1) in a one-to-one correspondence. The first racks (91) and the first gears (92) are meshed and matched in a one-to-one correspondence.

7. An air purification device for industrial papermaking according to claim 2, characterized in that: One end of the first auxiliary housing (3) is communicated with the second auxiliary housing (5). The second moving assembly (4) includes third screw rods (41) and second moving blocks (42). There are two third screw rods (41) and second moving blocks (42) respectively and they are in one-to-one correspondence. The third screw rods (41) are arranged inside the first auxiliary housing (3) in a one-to-one correspondence. The third screw rods (41) are rotatably connected between the opposite inner walls of the first auxiliary housing (3). The second moving blocks (42) are arranged on the third screw rods (41). The third screw rods (41) penetrate through the second moving blocks (42) and are threadedly connected to the second moving blocks (42). A second rotating assembly (52) for driving the third screw rods (41) to rotate is arranged at the communicating part of the first auxiliary housing (3) and the second auxiliary housing (5).

8. An air purification device for industrial papermaking according to claim 7, characterized in that: The second rotating assembly (52) includes a second rack (521) and a second gear (522). The second rack (521) is fixedly connected to the lower surface of the first moving block (22). The length direction of the second rack (521) is parallel to the moving direction of the scraper (13). The second gear (522) is arranged on the third screw rod (41). The third screw rod (41) penetrates through the second gear (522) and is fixedly connected to the second gear (522). The second gear (522) and the second rack (521) are meshed and matched.

9. An air purification device for industrial papermaking according to claim 1, characterized in that: The casing (1) is provided with a first avoidance opening (18) above the replacement opening (14). A first partition plate (181) is slidably connected to the casing (1) at the first avoidance opening (18). The blower (11) is located between the first partition plate (181) and the multi-stage filter screen (32). Two first baffle plates (182) for blocking the connection between the second auxiliary casing (5) and the casing (1) are fixedly arranged between the first partition plate (181) and the U-shaped frame (31).

10. The air purification device for industrial papermaking according to claim 1, characterized in that: The casing (1) is provided with a second avoidance opening (19) below the replacement opening (14). A second partition plate (191) is slidably connected to the casing (1) at the second avoidance opening (19). The air inlet (12) is located between the second partition plate (191) and the multi-stage filter screen (32). Two second baffle plates (192) for blocking the connection between the second auxiliary casing (5) and the casing (1) are fixedly arranged between the second partition plate (191) and the U-shaped frame (31).

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