Waste gas treatment device for metal processing

Abstract

The invention belongs to the technical field of waste gas treatment, and discloses a waste gas treatment device for metal processing. Comprising a treatment box, the two ends of the treatment box are fixedly connected with connecting pipes in a communicated mode, the shell is in a Z shape, and a plurality of holes are formed in the shell. By arranging the rotating assembly and the replacing assembly, the shell can be rotated before activated carbon particles in the shell need to be replaced, the activated carbon particles which are opposite to the waste gas direction and are saturated in adsorption face the waste gas, a motor is started to drive the shell to rotate by 180 degrees in the treatment box, and rotation of the shell and the activated carbon particles is achieved; when the activated carbon particles in the shell need to be replaced, the motor is started to drive the limiting block to rotate, the sealing plate of the discharging pipe can be firstly driven by the limiting block to rotate by 90 degrees, so that the activated carbon particles in the shell are discharged, then the discharging pipe is closed to open the sealing plate of the feeding pipe, and the activated carbon particles in the storage tank enter the shell immediately; the aim of quickly replacing the activated carbon particles is fulfilled.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and more specifically, the present invention relates to a waste gas treatment device for metal processing. Background Art

[0002] During the metal processing process, such as welding, cutting, grinding, spraying and other processes, a large amount of waste gas will be generated. These waste gases usually contain harmful substances such as particulate matter, volatile organic compounds, sulfur oxides, and nitrogen oxides. If these waste gases are directly discharged into the atmosphere without treatment, it will cause serious pollution to the environment and may pose a hazard to human health. Therefore, a special waste gas treatment device is needed to treat the waste gas.

[0003] Existing waste gas treatment devices usually first use a filter screen to filter the dust in the waste gas, and then adsorb the harmful substances in the waste gas. The adsorption of harmful substances usually needs to be carried out through activated carbon particles. Structures such as a housing are usually arranged in the treatment device to hold the activated carbon particles. The housing is arranged on the path of the waste gas flow. After the activated carbon particles are used for a period of time, they need to be replaced. At present, the replacement operation of the activated carbon particles in the treatment device is relatively cumbersome. At present, the housing surface of the treatment device adsorbs harmful substances to saturation for the activated carbon particles facing the waste gas, while the activated carbon particles facing away from the waste gas may not be adsorbed to saturation, and direct replacement will cause waste. Summary of the Invention

[0004] In order to solve the problems in the background art that the replacement operation of the activated carbon particles in the current treatment device is relatively cumbersome and the activated carbon particles facing away from the waste gas may not be adsorbed to saturation, and direct replacement will cause waste, the present invention provides a waste gas treatment device for metal processing.

[0005] To achieve the above object, the present invention provides the following technical solution: A waste gas treatment device for metal processing, including a treatment box, and connecting pipes are fixedly connected and communicated at both ends of the treatment box. The device further includes:

[0006] A housing, the housing is in a Z shape and is provided with a plurality of holes, activated carbon particles are arranged inside the housing, a rotating assembly for driving the housing to rotate inside the treatment box is arranged on the treatment box, and a replacement assembly for discharging the activated carbon particles inside the housing and adding activated carbon particles into the housing is further arranged on the treatment box;

[0007] A filter bag, the filter bag is arranged on one side of the housing and the filter bag is in a bowl shape, and a pushing assembly for pushing the filter bag to be cleaned is arranged on the treatment box.

[0008] Further, the rotating assembly includes a first fixed seat fixedly connected to the inner wall of the processing box. Both ends of the housing are respectively connected and fixed with a feed pipe and a discharge pipe. The feed pipe and the discharge pipe are both rotatably connected to the first fixed seat. The top end of the feed pipe is rotatably connected to a storage tank fixedly connected to the processing box through a support column. A bevel gear ring is fixedly connected to the outer wall of the feed pipe. A motor is arranged above the processing box. The output shaft of the motor is fixedly connected with a first rotating shaft. One end of the first rotating shaft is fixedly connected with a bevel gear meshing with the bevel gear ring.

[0009] Further, the replacement assembly includes a second rotating shaft rotatably connected in the feed pipe and the discharge pipe. A closing plate is fixedly connected to the outer wall of the second rotating shaft. One end of the second rotating shaft is fixedly connected with a rotating plate. A rotating column is fixedly connected to the rotating plate. A connecting ring is arranged outside the feed pipe and the discharge pipe. An annular groove is formed in the connecting ring. One end of the rotating column is slidably connected in the annular groove. First connecting rods are fixedly connected to the connecting ring. A connecting plate is fixedly connected to the processing box for vertically limiting the first connecting rods. One end of the first connecting rod is fixedly connected with a connecting column. A limiting block is arranged on one side of the processing box. A limiting track is formed in the limiting block. One end of each of the two connecting columns is slidably connected in the limiting track.

[0010] Further, the limiting track of the limiting block includes an annular track, a first convex area and a second convex area. Both of the two connecting columns are located in the annular track. The distances from the first convex area and the second convex area to the center of the limiting block are greater than the distance from the annular track to the center of the limiting block.

[0011] Further, a switching driving assembly for switching the position state of the motor so that it can drive the replacement assembly is arranged on the processing box. The switching driving assembly includes an electric push rod fixedly connected to the top of the processing box. The output end of the electric push rod is fixedly connected with an L-shaped plate. The motor is installed on the L-shaped plate. A first circular gear is fixedly connected to the outer wall of the first rotating shaft. A first rack is arranged above one side of the first circular gear. The top end of the first rack is fixedly connected with a second connecting rod. A fixing plate for vertically limiting the second connecting rod is fixedly connected to the processing box. A connecting plate is fixedly connected to the outer wall of the second connecting rod. A spring is fixedly connected between the connecting plate and the fixing plate. The bottom end of the second connecting rod is fixedly connected with a second rack. A third rotating shaft is fixedly connected to the limiting block. One end of the third rotating shaft is fixedly connected with a second circular gear meshing with the second rack.

[0012] Further, a second fixed seat is fixedly connected to the inner wall of the processing box. The filter bag is fixedly connected to the inner wall of the second fixed seat. A fixing net adapted to and in contact with the bowl-shaped filter bag is fixedly connected to the inner wall of the second fixed seat. A connecting block penetrating the fixing net is fixedly connected to the filter bag. A first magnet is fixedly connected to the connecting block. A second magnet attracted to and in contact with the first magnet is fixedly connected to the fixing net.

[0013] Further, the pushing component includes a third rack fixedly connected to one of the first connecting rods. A fourth rotating shaft is rotatably connected to the side wall of the processing box. One end of the fourth rotating shaft is fixedly connected to a third circular gear meshing with the third rack. A first sprocket is fixedly connected to the outer wall of the fourth rotating shaft. A fifth rotating shaft is rotatably connected to the processing box. One end of the fifth rotating shaft is fixedly connected to a second sprocket. The number of teeth of the second sprocket is less than that of the first sprocket. The first sprocket and the second sprocket are connected by a chain drive. The other end of the fifth rotating shaft is fixedly connected to a fourth circular gear. A guide post is slidably inserted into the fixed net. A fourth rack meshing with the fourth circular gear is fixedly connected to the guide post.

[0014] Further, an elastic connecting piece is fixedly connected to the inner wall of the discharge pipe. A connecting rope is fixedly connected between the connecting piece and the filter bag. The connecting rope is in a natural hanging state.

[0015] Technical effects and advantages of the waste gas treatment device for metal processing of the present invention:

[0016] (1) By setting the rotating component and the replacing component, before replacing the activated carbon particles in the housing, the housing can be rotated to make the activated carbon particles that are back to the waste gas direction and saturated with adsorption face the waste gas. Start the motor. The motor drives the feed pipe to rotate through the bevel gear and the bevel gear ring. The feed pipe drives the housing to rotate 180 degrees in the processing box, realizing the rotation of the housing and the activated carbon particles. When it is necessary to replace the activated carbon particles in the housing, the motor is driven to move upward by the electric push rod, so that the first circular gear meshes with the first rack. Start the motor to drive the limiting block to rotate. The limiting block can first drive the closing plate of the discharge pipe to rotate 90 degrees to discharge the activated carbon particles in the housing, and then open the closing plate of the discharge pipe to open the closing plate of the feed pipe. The activated carbon particles in the storage tank then enter the housing, achieving the purpose of quickly replacing the activated carbon particles.

[0017] (2) By setting the pushing component, when the closing plate in the discharge pipe rotates when the limiting block is driven to rotate, the first connecting rod can drive the fourth rotating shaft to rotate through the third rack and the third circular gear. The fourth rotating shaft drives the fifth rotating shaft to rotate through the first sprocket, the second sprocket and the chain. The fifth rotating shaft can drive the fourth rack to move through the fourth circular gear. The fourth rack can push the middle parts of the connecting block and the filter bag, causing the filter bag to bulge away from the fixed net. The dust and impurities on the side wall of the filter bag will gradually fall off. And when the activated carbon particles fall out of the discharge pipe. The activated carbon particles will continuously fall on the connecting piece to generate vibration, and the vibration is transmitted to the filter bag through the connecting rope, achieving the purpose of further cleaning the filter bag. Description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the processing box in the present invention;

[0020] Figure 3 Schematic cross-sectional view of the housing in the present invention;

[0021] Figure 4 In the present invention Figure 3 Enlarged schematic diagram at position A in;

[0022] Figure 5 First partial three-dimensional structure schematic diagram of the present invention;

[0023] Figure 6 In the present invention Figure 5 Enlarged schematic diagram at position B in;

[0024] Figure 7 Schematic diagram of the limiting block structure of the present invention;

[0025] Figure 8 Second partial three-dimensional structure schematic diagram of the present invention;

[0026] Figure 9 Schematic cross-sectional view of the second fixing seat, fixing net and filter bag in the present invention;

[0027] Figure 10 In the present invention Figure 9 Enlarged schematic diagram at position C in.

[0028] In the figure:

[0029] 1. Processing box; 2. Connecting pipe; 3. Filter bag; 4. Housing; 5. First fixing seat; 6. Feed pipe; 7. Discharge pipe; 8. Storage tank; 9. Bevel gear ring; 10. Motor; 11. First rotating shaft; 12. Bevel gear; 13. Second rotating shaft; 14. Closing plate; 15. Rotating plate; 16. Rotating column; 17. Connecting ring; 18. Annular groove; 19. First connecting rod; 20. Connecting column; 21. Limiting block; 2101. Circular ring track; 2102. First convex area; 2103. Second convex area; 22. Electric push rod; 23. L-shaped plate; 24. First circular gear; 25. First rack; 26. Second connecting rod; 27. Fixed plate; 28. Connecting plate; 29. Spring; 30. Second rack; 31. Third rotating shaft; 32. Second circular gear; 33. Second fixing seat; 34. Fixed net; 35. Connecting block; 36. First magnet; 37. Second magnet; 38. Third rack; 39. Fourth rotating shaft; 40. Third circular gear; 41. First sprocket; 42. Fifth rotating shaft; 43. Second sprocket; 44. Chain; 45. Fourth circular gear; 46. Guide post; 47. Fourth rack; 48. Connecting rope; 49. Connecting piece. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] Refer to Figure 1 - Figure 10 , an exhaust gas treatment device for metal processing, including a treatment tank 1, both ends of the treatment tank 1 are connected and fixed with a connecting pipe 2, and further includes:

[0032] A housing 4, the housing 4 is in a Z shape and is provided with a plurality of holes, activated carbon particles are provided in the housing 4, and a rotating assembly for driving the housing 4 to rotate in the treatment tank 1 is provided on the treatment tank 1. A replacement assembly for discharging the activated carbon particles in the housing 4 and adding activated carbon particles into the housing 4 is also provided on the treatment tank 1;

[0033] A filter bag 3, the filter bag 3 is arranged on one side of the housing 4 and the filter bag 3 is in a bowl shape, and a pushing assembly for pushing the filter bag 3 for cleaning is provided on the treatment tank 1;

[0034] During use, connect the exhaust gas inlet pipe to the connecting pipe 2 on the left side, connect the outlet pipe to the connecting pipe 2 on the right side, discharge the exhaust gas into the treatment tank 1. The exhaust gas is first filtered by the filter bag 3, and large particle dust and impurities in the exhaust gas are blocked and retained on the filter bag 3. Then the exhaust gas will pass through the housing 4. A large amount of activated carbon particles are stored in the housing 4, and the activated carbon particles can adsorb and treat the passing exhaust gas, adsorbing harmful substances in the exhaust gas onto the activated carbon particles, realizing effective treatment of the exhaust gas. When the activated carbon particles in the housing 4 facing the exhaust gas are saturated with adsorption, the rotating assembly can drive the housing 4 to rotate, so that the activated carbon particles that were originally facing away from the exhaust gas and not saturated with adsorption face the exhaust gas. After this part of the activated carbon particles is saturated with adsorption, the replacement assembly is used to replace the activated carbon particles in the housing 4. During the replacement process, the pushing assembly can push the filter bag 3 to facilitate cleaning and removing the dust and impurities attached to the filter bag 3.

[0035] Refer to Figure 2 、 Figure 5 and Figure 6, the rotating assembly includes a first fixed seat 5 fixedly connected to the inner wall of the processing box 1. Both ends of the housing 4 are respectively and communicatively fixedly connected with a feed pipe 6 and a discharge pipe 7. Both the feed pipe 6 and the discharge pipe 7 are rotatably connected to the first fixed seat 5. The top end of the feed pipe 6 is rotatably connected to a storage tank 8 fixedly connected to the processing box 1 through a support column. A bevel gear ring 9 is fixedly connected to the outer wall of the feed pipe 6. A motor 10 is arranged above the processing box 1. The output shaft of the motor 10 is fixedly connected with a first rotating shaft 11. One end of the first rotating shaft 11 is fixedly connected with a bevel gear 12 meshing with the bevel gear ring 9; when it is necessary to rotate the housing 4 and the activated carbon particles, start the motor 10. The motor 10 drives the first rotating shaft 11 to rotate. The first rotating shaft 11 drives the bevel gear 12 to rotate. The bevel gear 12 drives the bevel gear ring 9 to rotate. The bevel gear ring 9 drives the feed pipe 6 to rotate. The feed pipe 6 drives the housing 4 to rotate, so that the housing 4 rotates 180 degrees in the first fixed seat 5, making the activated carbon particles facing away from the waste gas face the waste gas.

[0036] Refer to Figure 3 , Figure 4 , Figure 5 and Figure 7, the replacement component includes a second rotating shaft 13 rotatably connected inside the feed pipe 6 and the discharge pipe 7. A closing plate 14 is fixedly connected to the outer wall of the second rotating shaft 13. One end of the second rotating shaft 13 is fixedly connected to a rotating plate 15. A rotating column 16 is fixedly connected to the rotating plate 15. A connecting ring 17 is provided outside the feed pipe 6 and the discharge pipe 7. An annular groove 18 is formed in the connecting ring 17. One end of the rotating column 16 is slidably connected in the annular groove 18. First connecting rods 19 are fixedly connected to the connecting ring 17. A connecting plate for vertically limiting the first connecting rod 19 is fixedly connected to the processing box 1. One end of the first connecting rod 19 is fixedly connected to a connecting column 20. A limiting block 21 is provided on one side of the processing box 1. A limiting track is formed in the limiting block 21. One ends of the two connecting columns 20 are slidably connected in the limiting track. When it is necessary to replace the activated carbon particles in the housing 4, rotate the limiting block 21. The rotation of the limiting block 21 drives the rotation of the limiting track. The rotation of the limiting track can drive the lower connecting column 20 to move downward first. The connecting column 20 drives the lower connecting ring 17 to move downward through the first connecting rod 19. The connecting ring 17 drives the rotating column 16 to move downward through the annular groove 18. The rotating column 16 drives the second rotating shaft 13 to rotate through the rotating plate 15. The second rotating shaft 13 drives the closing plate 14 in the discharge pipe 7 to rotate by 90 degrees, that is, the discharge pipe 7 is opened. The activated carbon particles in the housing 4 will be discharged from the discharge pipe 7 out of the housing 4. After the discharge is completed, rotate the limiting block 21 to reset the connecting column 20, so that the closing plate 14 closes the discharge pipe 7 again. Rotate the limiting block 21 in the reverse direction. The limiting block 21 can drive the upper connecting column 20 to move upward. The connecting column 20 drives the upper connecting ring 17 to move upward through the first connecting rod 19. The connecting ring 17 drives the closing plate 14 in the feed pipe 6 to rotate by 90 degrees through the annular groove 18, the rotating column 16, the rotating plate 15 and the second rotating shaft 13, that is, the feed pipe 6 is opened. The activated carbon particles in the storage tank 8 enter the housing 4 from the feed pipe 6 to supplement the activated carbon particles in the housing 4. After the addition is completed, resetting the limiting block 21 can make the closing plate 14 in the feed pipe 6 close the feed pipe 6 again, achieving the purpose of replacing the activated carbon particles. By providing the annular groove 18, when the housing 4 is driven to rotate by the rotating component, the closing plate 14 and the rotating column 16 will rotate with the housing 4, and the rotating column 16 will rotate in the annular groove 18, so that the replacement component will not affect the operation of the rotating component.

[0037] Refer to Figure 7, the limiting tracks of the limiting block 21 include an annular track 2101, a first convex area 2102 and a second convex area 2103. Both of the connecting columns 20 are located within the annular track 2101. The distances from the first convex area 2102 and the second convex area 2103 to the center of the limiting block 21 are greater than the distance from the annular track 2101 to the center of the limiting block 21. When it is necessary to make the lower connecting column 20 move downward, the limiting block 21 is rotated forward. When the limiting block 21 rotates, the second convex area 2103 rotates towards the lower connecting column 20, enabling the lower connecting column 20 to enter the second convex area 2103. The upper connecting column 20 continues to slide within the annular track 2101, and the lower connecting column 20 can move downward, causing the lower closing plate 14 to rotate, i.e., the discharge pipe 7 is opened. By rotating the limiting block 21 in the reverse direction, the lower connecting column 20 can be made to return to the annular track 2101 again, i.e., the discharge pipe 7 is closed. Continuing to rotate the limiting block 21 in the reverse direction, the upper connecting column 20 enters the first convex area 2102, and the lower connecting column 20 continues to slide within the annular track 2101. The upper connecting column 20 can move upward, causing the closing plate 14 of the upper feed pipe 6 to rotate, i.e., the feed pipe 6 is opened. By rotating the limiting block 21 forward, the upper connecting column 20 can be made to return to the annular track 2101 again.

[0038] Refer to Figure 5 and Figure 6, a switching drive assembly for switching the position state of the motor 10 so that it can drive the replacement assembly is provided on the processing box 1. The switching drive assembly includes an electric push rod 22 fixedly connected to the top of the processing box 1. The output end of the electric push rod 22 is fixedly connected with an L-shaped plate 23. The motor 10 is installed on the L-shaped plate 23. A first circular gear 24 is fixedly connected to the outer wall of the first rotating shaft 11. A first rack 25 is arranged above one side of the first circular gear 24. The top end of the first rack 25 is fixedly connected with a second connecting rod 26. A fixing plate 27 for vertically limiting the second connecting rod 26 is fixedly connected to the processing box 1. A connecting plate 28 is fixedly connected to the outer wall of the second connecting rod 26. A spring 29 is fixedly connected between the connecting plate 28 and the fixing plate 27. The bottom end of the second connecting rod 26 is fixedly connected with a second rack 30. A third rotating shaft 31 is fixedly connected to the limiting block 21. One end of the third rotating shaft 31 is fixedly connected with a second circular gear 32 meshing with the second rack 30; when it is necessary to make the motor 10 drive the replacement assembly, start the electric push rod 22. The electric push rod 22 drives the L-shaped plate 23 and the motor 10 to move upward, so that the first circular gear 24 meshes with the first rack 25 and the bevel gear 12 is disengaged from the bevel gear ring 9. Start the motor 10 to drive the first circular gear 24 to rotate through the first rotating shaft 11. The first circular gear 24 can drive the first rack 25 and the second connecting rod 26 to move downward. The second connecting rod 26 drives the connecting plate 28 to move downward. The spring 29 is stretched. The second connecting rod 26 drives the second rack 30 to move downward. The second rack 30 drives the third rotating shaft 31 to rotate through the second circular gear 32. The third rotating shaft 31 can drive the limiting block 21 to rotate, so as to realize driving the replacement assembly. Drive the first rack 25 to reset through the motor 10, and reset the motor 10 through the electric push rod 22. Under the action of the spring 29, the limiting block 21 resets.

[0039] Referring to Figure 9 and Figure 10 , a second fixing seat 33 is fixedly connected to the inner wall of the processing box 1. The filter bag 3 is fixedly connected to the inner wall of the second fixing seat 33. A fixing net 34 adapted to and in contact with the bowl-shaped filter bag 3 is fixedly connected to the inner wall of the second fixing seat 33. A connecting block 35 penetrating the fixing net 34 is fixedly connected to the filter bag 3. A first magnet 36 is fixedly connected to the connecting block 35. A second magnet 37 attracted to and in contact with the first magnet 36 is fixedly connected to the fixing net 34; by setting the filter bag 3 and the fixing net 34 to be bowl-shaped, the filter bag 3 can have a large contact area with the waste gas. Through the first magnet 36 and the second magnet 37, the filter bag 3 can be fixed to the fixing net 34 through the connecting block 35, preventing the filter bag 3 from sagging naturally and forming wrinkles, thereby reducing the waste gas filtration efficiency.

[0040] Referring to Figure 8 , Figure 9 and Figure 10The pushing assembly includes a third rack 38 fixedly connected to one of the first connecting rods 19, a fourth rotating shaft 39 is rotatably connected to the side wall of the processing box 1, one end of the fourth rotating shaft 39 is fixedly connected to a third circular gear 40 meshing with the third rack 38, a first sprocket 41 is fixedly connected to the outer wall of the fourth rotating shaft 39, a fifth rotating shaft 42 is rotatably connected to the processing box 1, one end of the fifth rotating shaft 42 is fixedly connected to a second sprocket 43, the number of teeth of the second sprocket 43 is less than that of the first sprocket 41, the first sprocket 41 and the second sprocket 43 are connected by a chain 44, the other end of the fifth rotating shaft 42 is fixedly connected to a fourth circular gear 45, a guide column 46 is slidably inserted on the fixed net 34, and a fourth rack 47 meshing with the fourth circular gear 45 is fixedly connected to the guide column 46; when the connecting column 2 below 0 downward movement can drive the first connecting rod 19 to move downward, the discharge pipe 7 is opened, the first connecting rod 19 downward movement can drive the third circular gear 40 to rotate through the third rack 38, the third circular gear 40 drives the fourth rotating shaft 39 to rotate, the fourth rotating shaft 39 drives the fifth rotating shaft 42 to rotate through the first sprocket 41, the second sprocket 43 and the chain 44, and because the number of teeth of the second sprocket 43 is less than that of the first sprocket 41, the first sprocket 41 rotates a few circles and can drive the second sprocket 43 to rotate more circles, the second sprocket 43 drives the fourth circular gear 45 to rotate through the fifth rotating shaft 42, the fourth circular gear 45 can drive the fourth rack 47 and the guide column 46 to move in the middle of the fixed net 34, the guide column 46 can push the connecting block 35 to move, push the filter bag 3 away from the fixed net 34, so that the dust and impurities attached to the filter bag 3 fall off.

[0041] Reference Figure 2 , Figure 4 and Figure 8 The inner wall of the discharge pipe 7 is fixedly connected with an elastic connecting piece 49, and a connecting rope 48 is fixedly connected between the connecting piece 49 and the filter bag 3, and the connecting rope 48 is in a naturally drooping state; when the discharge pipe 7 is opened, the corresponding first connecting rod 19 moves downward, so that the filter bag 3 can be pushed by the pushing component, and the filter bag 3 is pushed to make the connecting rope 48 straight, and the activated carbon particles fall from the discharge pipe 7 and are discharged from the shell 4. The activated carbon particles continuously knock and hit the connecting piece 49, and the impact generates vibration, which can be transmitted to the filter bag 3 through the connecting rope 48, and the vibration can further cause the dust and impurities attached to the filter bag 3 to fall off.

[0042] Working principle: When in use, connect the exhaust gas inlet pipe to the connecting pipe 2 on the left, connect the outlet pipe to the connecting pipe 2 on the right, and discharge the exhaust gas into the treatment box 1. The exhaust gas first passes through the filtration of the filter bag 3, and large particulate dust and impurities in the exhaust gas are blocked and retained on the filter bag 3. Then the exhaust gas passes through the housing 4, and a large number of activated carbon particles are stored in the housing 4. The activated carbon particles can adsorb and treat the passing exhaust gas, adsorbing harmful substances in the exhaust gas onto the activated carbon particles to achieve effective treatment of the exhaust gas. When the activated carbon particles in the housing 4 facing the exhaust gas are saturated with adsorption, the housing 4 can be driven to rotate through the rotating assembly, so that the activated carbon particles that were originally facing away from the exhaust gas and not saturated with adsorption face the exhaust gas. After this part of the activated carbon particles are saturated with adsorption, the activated carbon particles in the housing 4 are replaced through the replacement assembly. During the replacement process, the pushing assembly can push the filter bag 3 to facilitate the cleaning and removal of dust and impurities attached to the filter bag 3;

[0043] When it is necessary to rotate the housing 4 and the activated carbon particles, start the motor 10. The motor 10 drives the first rotating shaft 11 to rotate. The first rotating shaft 11 drives the bevel gear 12 to rotate. The bevel gear 12 drives the bevel gear ring 9 to rotate. The bevel gear ring 9 drives the feed pipe 6 to rotate. The feed pipe 6 drives the housing 4 to rotate, so that the housing 4 rotates 180 degrees in the first fixed seat 5, making the activated carbon particles facing away from the exhaust gas face the exhaust gas;

[0044] When it is necessary to replace the activated carbon particles in the housing 4, rotate the limit block 21. The rotation of the limit block 21 drives the rotation of the limit track. The rotation of the limit track can drive the lower connecting column 20 to move downward first. The connecting column 20 drives the lower connecting ring 17 to move downward through the first connecting rod 19. The connecting ring 17 drives the rotating column 16 to move downward through the annular groove 18. The rotating column 16 drives the second rotating shaft 13 to rotate through the rotating plate 15. The second rotating shaft 13 drives the closing plate 14 in the discharge pipe 7 to rotate by 90 degrees, that is, the discharge pipe 7 is opened. The activated carbon particles in the housing 4 will be discharged from the discharge pipe 7 out of the housing 4. After the discharge is completed, rotate the limit block 21 to reset the connecting column 20, so that the closing plate 14 closes the discharge pipe 7 again. Reverse the rotation of the limit block 21. The limit block 21 can drive the upper connecting column 20 to move upward. The connecting column 20 drives the upper connecting ring 17 to move upward through the first connecting rod 19. The connecting ring 17 drives the closing plate 14 in the feed pipe 6 to rotate by 90 degrees through the annular groove 18, the rotating column 16, the rotating plate 15 and the second rotating shaft 13, that is, the feed pipe 6 is opened. The activated carbon particles in the storage tank 8 enter the housing 4 from the feed pipe 6 to supplement the activated carbon particles in the housing 4. After the addition is completed, resetting the limit block 21 can re-close the closing plate 14 in the feed pipe 6, achieving the purpose of opening and replacing the activated carbon particles. By providing the annular groove 18, when the housing 4 is rotated by the rotating assembly, the closing plate 14 and the rotating column 16 will rotate with the housing 4, and the rotating column 16 will rotate in the annular groove 18, so that the replacement assembly will not affect the operation of the rotating assembly;

[0045] When it is necessary to move the lower connecting column 20 downward, rotate the limit block 21 in the positive direction. The rotation of the limit block 21 makes the second convex area 2103 rotate downward towards the lower connecting column 20, so that the lower connecting column 20 enters the second convex area 2103. The upper connecting column 20 continues to slide in the circular ring track 2101. The lower connecting column 20 can move downward, causing the lower closing plate 14 to rotate, that is, the discharge pipe 7 is opened. Reverse the rotation of the limit block 21, and the lower connecting column 20 can return to the circular ring track 2101 again, that is, the discharge pipe 7 is closed. Continue to reverse the rotation of the limit block 21, and the upper connecting column 20 enters the first convex area 2102. The lower connecting column 20 continues to slide in the circular ring track 2101. The upper connecting column 20 can move upward, causing the closing plate 14 of the upper feed pipe 6 to rotate, that is, the feed pipe 6 is opened. Rotate the limit block 21 in the positive direction, and the upper connecting column 20 can return to the circular ring track 2101 again;

[0046] When it is necessary to make the motor 10 drive the replacement component, the electric push rod 22 is started. The electric push rod 22 drives the L-shaped plate 23 and the motor 10 to move upward, so that the first circular gear 24 meshes with the first rack 25, and the bevel gear 12 is disengaged from the bevel gear ring 9. The motor 10 is started to drive the first circular gear 24 to rotate through the first rotating shaft 11. The first circular gear 24 can drive the first rack 25 and the second connecting rod 26 to move downward. The second connecting rod 26 drives the connecting plate 28 to move downward, and the spring 29 is stretched. The second connecting rod 26 drives the second rack 30 to move downward. The second rack 30 drives the third rotating shaft 31 to rotate through the second circular gear 32. The third rotating shaft 31 can drive the limiting block 21 to rotate, so as to realize driving the replacement component. The first rack 25 is driven by the motor 10 to reset, and the motor 10 is reset by the electric push rod 22. Under the action of the spring 29, the limiting block 21 is reset;

[0047] By setting the filter bag 3 and the fixing net 34 to be bowl-shaped, the filter bag 3 can have a large contact area with the waste gas. Through the first magnet 36 and the second magnet 37, the filter bag 3 can be fixed on the fixing net 34 through the connecting block 35, preventing the filter bag 3 from sagging naturally and forming wrinkles, thereby reducing the waste gas filtration efficiency;

[0048] When the lower connecting column 20 moves downward, it can drive the first connecting rod 19 to move downward, and the discharge pipe 7 is opened. The downward movement of the first connecting rod 19 can drive the third circular gear 40 to rotate through the third rack 38. The third circular gear 40 drives the fourth rotating shaft 39 to rotate. The fourth rotating shaft 39 drives the fifth rotating shaft 42 to rotate through the first sprocket 41, the second sprocket 43 and the chain 44. And because the number of teeth of the second sprocket 43 is less than that of the first sprocket 41, the first sprocket 41 rotating a small number of turns can drive the second sprocket 43 to rotate a large number of turns. The second sprocket 43 drives the fourth circular gear 45 to rotate through the fifth rotating shaft 42. The fourth circular gear 45 can drive the fourth rack 47 and the guide post 46 to move in the middle of the fixing net 34. The guide post 46 can push the connecting block 35 to move, pushing the filter bag 3 away from the fixing net 34, so that the dust and impurities attached to the filter bag 3 fall off;

[0049] During the opening process of the discharge pipe 7, the corresponding first connecting rod 19 moves downward, so that the filter bag 3 can be pushed by the pushing component. The filter bag 3 is pushed so that the connecting rope 48 is straightened, and the activated carbon particles fall from the discharge pipe 7 and are discharged from the housing 4. The activated carbon particles continuously knock and impact the connecting piece 49, and the impact generates vibration. The vibration can be transmitted to the filter bag 3 through the connecting rope 48, and the vibration can further make the dust and impurities attached to the filter bag 3 fall off.

[0050] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claimed rights.

[0051] Finally: The above description is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for metal processing, comprising a treatment tank (1), and connecting pipes (2) are fixedly connected in a communicating manner at both ends of the treatment tank (1), characterized in that, It also includes: A housing (4), the housing (4) is in a Z shape and is provided with a plurality of holes, activated carbon particles are provided inside the housing (4), a rotating assembly for driving the housing (4) to rotate inside the treatment tank (1) is provided on the treatment tank (1), and a replacement assembly for discharging the activated carbon particles inside the housing (4) and adding activated carbon particles into the housing (4) is also provided on the treatment tank (1); A filter bag (3), the filter bag (3) is arranged on one side of the housing (4) and the filter bag (3) is in a bowl shape, and a pushing assembly for pushing the filter bag (3) to be cleaned is provided on the treatment tank (1).

2. The waste gas treatment device for metal processing according to claim 1, characterized in that, The rotating assembly includes a first fixed seat (5) fixedly connected to the inner wall of the treatment tank (1). Feed pipes (6) and a discharge pipe (7) are respectively and communicatively fixedly connected to both ends of the housing (4). The feed pipes (6) and the discharge pipe (7) are both rotatably connected to the first fixed seat (5). The top end of the feed pipe (6) is rotatably connected to a storage tank (8) fixedly connected to the treatment tank (1) through a support column. A bevel gear ring (9) is fixedly connected to the outer wall of the feed pipe (6). A motor (10) is arranged above the treatment tank (1). A first rotating shaft (11) is fixedly connected to the output shaft of the motor (10). A bevel gear (12) meshing with the bevel gear ring (9) is fixedly connected to one end of the first rotating shaft (11).

3. The waste gas treatment device for metal processing according to claim 2, wherein, The replacement assembly includes a second rotating shaft (13) rotatably connected inside the feed pipe (6) and the discharge pipe (7). A closing plate (14) is fixedly connected to the outer wall of the second rotating shaft (13). A rotating plate (15) is fixedly connected to one end of the second rotating shaft (13). A rotating column (16) is fixedly connected to the rotating plate (15). Connection rings (17) are arranged outside the feed pipe (6) and the discharge pipe (7). An annular groove (18) is formed in the connection ring (17). One end of the rotating column (16) is slidably connected to the annular groove (18). First connecting rods (19) are fixedly connected to the connection rings (17). A connecting plate for vertically limiting the first connecting rods (19) is fixedly connected to the treatment tank (1). A connecting column (20) is fixedly connected to one end of the first connecting rod (19). A limiting block (21) is arranged on one side of the treatment tank (1). A limiting track is formed in the limiting block (21). One ends of the two connecting columns (20) are both slidably connected to the limiting track.

4. The waste gas treatment device for metal processing according to claim 3, characterized in that, The limiting track of the limiting block (21) includes a circular ring track (2101), a first convex area (2102) and a second convex area (2103). The two connecting columns (20) are both located inside the circular ring track (2101). The distances from the first convex area (2102) and the second convex area (2103) to the center of the limiting block (21) are greater than the distance from the circular ring track (2101) to the center of the limiting block (21).

5. The waste gas treatment device for metal processing according to claim 4, characterized in that, The processing box (1) is provided with a switching drive component for switching the position state of the motor (10) so that it can drive the replacement component, the switching drive component comprises an electric push rod (22) fixedly connected to the top of the processing box (1), the output end of the electric push rod (22) is fixedly connected to an L-shaped plate (23), the motor (10) is installed on the L-shaped plate (23), the outer wall of the first rotating shaft (11) is fixedly connected to a first circular gear (24), a first rack (25) is provided above one side of the first circular gear (24), and the top end of the first rack (25) is fixedly connected to a A second connecting rod (26), a fixing plate (27) for vertically limiting the second connecting rod (26) is fixedly connected to the processing box (1), a connecting plate (28) is fixedly connected to the outer wall of the second connecting rod (26), a spring (29) is fixedly connected between the connecting plate (28) and the fixing plate (27), a second rack (30) is fixedly connected to the bottom end of the second connecting rod (26), a third rotating shaft (31) is fixedly connected to the limiting block (21), and one end of the third rotating shaft (31) is fixedly connected to a second circular gear (32) meshing with the second rack (30).

6. The waste gas treatment device for metal processing according to claim 5, characterized in that, The inner wall of the treatment box (1) is fixedly connected to a second fixing seat (33), the filter bag (3) is fixedly connected to the inner wall of the second fixing seat (33), the inner wall of the second fixing seat (33) is fixedly connected to a fixing net (34) adapted to and in contact with the bowl-shaped filter bag (3), the filter bag (3) is fixedly connected to a connecting block (35) penetrating the fixing net (34), the connecting block (35) is fixedly connected to a first magnet (36), and the fixing net (34) is fixedly connected to a second magnet (37) that attracts and contacts the first magnet (36).

7. The waste gas treatment device for metal processing according to claim 6, characterized in that, The pushing assembly comprises a third rack (38) fixedly connected to one of the first connecting rods (19); a fourth rotating shaft (39) is rotatably connected to the side wall of the processing box (1); one end of the fourth rotating shaft (39) is fixedly connected to a third circular gear (40) meshing with the third rack (38); an outer wall of the fourth rotating shaft (39) is fixedly connected to a first sprocket (41); a fifth rotating shaft (42) is rotatably connected to the processing box (1); A second sprocket (43) is fixedly connected to one end, the number of teeth of the second sprocket (43) is less than that of the first sprocket (41), the first sprocket (41) and the second sprocket (43) are connected by a chain (44), the other end of the fifth rotating shaft (42) is fixedly connected to a fourth circular gear (45), a guide column (46) is slidably inserted on the fixed net (34), and a fourth rack (47) meshing with the fourth circular gear (45) is fixedly connected to the guide column (46).

8. The waste gas treatment device for metal processing according to claim 7, wherein, An elastic connecting piece (49) is fixedly connected to the inner wall of the discharge pipe (7), and a connecting rope (48) is fixedly connected between the connecting piece (49) and the filter bag (3), and the connecting rope (48) is in a naturally drooping state.

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