Exhaust gas treatment device for metal working

Abstract

The application belongs to the technical field of waste gas treatment, and discloses a waste gas treatment device for metal processing; the waste gas treatment device comprises a treatment box, connecting pipes are fixedly connected to both ends of the treatment box in communication, further comprises a shell, the shell is in Z shape and a plurality of holes are formed in the shell. The waste gas treatment device is provided with a rotating assembly and a replacing assembly, the shell can be rotated before the activated carbon particles in the shell need to be replaced, the activated carbon particles which are saturated and back to the direction of the waste gas are made to be perpendicular to the waste gas, the shell is rotated by one hundred and eighty degrees in the treatment box under the drive of the motor, and the rotation of the shell and the activated carbon particles is realized; when the activated carbon particles in the shell need to be replaced, the motor can drive the limiting block to rotate, the closing plate of the discharging pipe is first driven to rotate by ninety degrees through the limiting block, the activated carbon particles in the shell are discharged, the closing plate of the discharging pipe is then opened to close the closing plate of the feeding pipe, the activated carbon particles in the storage tank are immediately put into the shell, and the purpose of rapidly replacing the activated carbon particles is achieved.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and more specifically, to a waste gas treatment device for metal processing. Background Technology

[0002] Metal processing, such as welding, cutting, grinding, and spraying, generates a large amount of waste gas. This waste gas usually contains harmful substances such as particulate matter, volatile organic compounds, sulfur oxides, and nitrogen oxides. If this waste gas is discharged directly into the atmosphere without treatment, it will cause serious environmental pollution and may harm human health. Therefore, it is necessary to use a special waste gas treatment device to treat the waste gas.

[0003] Existing waste gas treatment devices typically first use filters to remove dust from the waste gas, and then adsorb harmful substances from the waste gas. Adsorption of harmful substances usually requires activated carbon particles. The treatment device usually has a shell or other structure to hold the activated carbon particles, and the shell is placed in the path of the waste gas flow. The activated carbon particles need to be replaced after a period of use. Currently, the replacement operation of activated carbon particles in the treatment device is relatively cumbersome. The activated carbon particles facing the waste gas on the shell side adsorb harmful substances to saturation first, while the activated carbon particles facing away from the waste gas may not be able to adsorb to saturation. Direct replacement would result in waste. Summary of the Invention

[0004] The present invention addresses the problems in the prior art where the replacement of activated carbon particles in current treatment devices is cumbersome and the activated carbon particles may not be able to adsorb to saturation when facing waste gas, resulting in waste when directly replacing them. Therefore, the present invention proposes a waste gas treatment device for metal processing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste gas treatment device for metal processing, comprising a treatment box, wherein connecting pipes are fixedly connected to both ends of the treatment box, and further comprising:

[0006] The shell is Z-shaped and has multiple holes. Activated carbon particles are placed inside the shell. The processing box is equipped with a rotating component for driving the shell to rotate inside the processing box. The processing box is also equipped with a replacement component for discharging the activated carbon particles inside the shell and adding activated carbon particles inside the shell.

[0007] The filter bag is located on one side of the housing and is bowl-shaped. The processing box is equipped with a pushing component for pushing the filter bag for cleaning.

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

[0009] Furthermore, the replacement assembly includes a second rotating shaft rotatably connected within the feed pipe and the discharge pipe. A sealing plate is fixed to the outer wall of the second rotating shaft, and a rotating plate is fixed to one end of the second rotating shaft. A rotating column is fixed to the rotating plate. A connecting ring is provided on the outer side of the feed pipe and the discharge pipe. An annular groove is provided on the connecting ring. One end of the rotating column is slidably connected within the annular groove. A first connecting rod is fixed to each connecting ring. A connecting plate for vertically limiting the first connecting rod is fixed to the processing box. A connecting column is fixed to one end of the first connecting rod. A limiting block is provided on one side of the processing box. A limiting track is provided on the limiting block. One end of each of the two connecting columns is slidably connected within the limiting track.

[0010] Furthermore, the limiting track of the limiting block includes a circular track, a first convex area and a second convex area, and both connecting posts are located within the circular track. The distance from the first convex area and the second convex area to the center of the limiting block is greater than the distance from the circular track to the center of the limiting block.

[0011] Furthermore, the processing box is provided with a switching drive assembly for switching the position state of the motor so that it can drive the replacement component. The switching drive assembly includes an electric push rod fixed to the top of the processing box. An L-shaped plate is fixed to the output end of the electric push rod. The motor is mounted on the L-shaped plate. A first spur gear is fixed to the outer wall of the first rotating shaft. A first rack is provided above one side of the first spur gear. A second connecting rod is fixed to the top end of the first rack. A fixing plate for vertically limiting the second connecting rod is fixed to the processing box. A connecting plate is fixed to the outer wall of the second connecting rod. A spring is fixed between the connecting plate and the fixing plate. A second rack is fixed to the bottom end of the second connecting rod. A third rotating shaft is fixed to the limiting block. A second spur gear that meshes with the second rack is fixed to one end of the third rotating shaft.

[0012] Furthermore, a second fixing seat is fixed to the inner wall of the processing box, the filter bag is fixed to the inner wall of the second fixing seat, and a fixing mesh adapted to and in contact with the bowl-shaped filter bag is fixed to the inner wall of the second fixing seat. A connecting block penetrating the fixing mesh is fixed to the filter bag, a first magnet is fixed to the connecting block, and a second magnet that attracts and contacts the first magnet is fixed to the fixing mesh.

[0013] Furthermore, the pushing assembly includes a third rack fixedly connected to one of the first connecting rods, a fourth rotating shaft rotatably connected to the side wall of the processing box, a third sprocket meshing with the third rack fixedly connected to one end of the fourth rotating shaft, a first sprocket fixedly connected to the outer wall of the fourth rotating shaft, a fifth rotating shaft rotatably connected to the processing box, a second sprocket fixedly connected to one end of the fifth rotating shaft, the second sprocket having fewer teeth than the first sprocket, the first sprocket and the second sprocket being connected by a chain drive, a fourth sprocket fixedly connected to the other end of the fifth rotating shaft, and a guide post slidably inserted into the fixing net, a fourth rack meshing with the fourth sprocket fixedly connected to the guide post.

[0014] Furthermore, an elastic connecting piece is fixed to the inner wall of the discharge pipe, and a connecting rope is fixed between the connecting piece and the filter bag, with the connecting rope in a naturally hanging state.

[0015] The technical effects and advantages of the waste gas treatment device for metal processing of the present invention are as follows:

[0016] (1) By setting up a rotating component and a replacement component, the shell can be rotated before the activated carbon particles in the shell need to be replaced, so that the activated carbon particles facing away from the direction of the exhaust gas and which are saturated with adsorption are facing the exhaust gas. Start the motor, and the motor drives the feed pipe to rotate through the bevel gear and bevel gear ring. The feed pipe drives the shell to rotate 180 degrees in the treatment box, realizing the rotation of the shell and the activated carbon particles. When the activated carbon particles in the shell need to be replaced, the motor is driven to move upward through the electric push rod, so that the first spur gear meshes with the first rack. Start the motor to drive the limit block to rotate. Through the limit block, the closing plate of the discharge pipe can be driven to rotate 90 degrees first, so that the activated carbon particles in the shell are discharged. Then the discharge pipe closes and opens the closing plate of the feed pipe, and the activated carbon particles in the storage tank immediately enter the shell, realizing the purpose of quickly replacing the activated carbon particles.

[0017] (2) By setting up a pushing component, when the limit block rotates and the closed plate inside the discharge pipe rotates, the first connecting rod can drive the fourth rotating shaft to rotate through the third rack and the third sprocket. 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 sprocket. The fourth rack can push the connecting block and the middle of the filter bag to move, causing the filter bag to bulge away from the fixed mesh. 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 plate to generate vibration. The vibration is transmitted to the filter bag through the connecting rope, which serves to further clean the filter bag. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the internal structure of the processing box in this invention;

[0020] Figure 3 This is a schematic cross-sectional view of the shell in this invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the first partial three-dimensional structure in this invention;

[0023] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 This is a schematic diagram of the limiting block structure in this invention;

[0025] Figure 8 This is a schematic diagram of the second partial three-dimensional structure in the present invention;

[0026] Figure 9 This is a cross-sectional schematic diagram of the second fixing seat, fixing net, and filter bag in this invention;

[0027] Figure 10 For the present invention Figure 9 Enlarged diagram of point C in the middle.

[0028] In the picture:

[0029] 1. Processing box; 2. Connecting pipe; 3. Filter bag; 4. Housing; 5. First fixed 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. Sealing 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 track; 2102. First convex area; 2103. Second convex area; 22. Electric push rod; 23. L-shaped plate; 24. First circumferential gear 25. First rack; 26. Second connecting rod; 27. Fixing plate; 28. Connecting plate; 29. ​​Spring; 30. Second rack; 31. Third shaft; 32. Second sprocket; 33. Second fixing seat; 34. Fixing net; 35. Connecting block; 36. First magnet; 37. Second magnet; 38. Third rack; 39. Fourth shaft; 40. Third sprocket; 41. First sprocket; 42. Fifth shaft; 43. Second sprocket; 44. Chain; 45. Fourth sprocket; 46. Guide post; 47. Fourth rack; 48. Connecting rope; 49. Connecting plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 10 A waste gas treatment device for metal processing includes a treatment box 1, with connecting pipes 2 fixedly connected to both ends of the treatment box 1, and further includes:

[0032] The shell 4 is Z-shaped and has multiple holes. Activated carbon particles are placed inside the shell 4. The processing box 1 is equipped with a rotating component for driving the shell 4 to rotate inside the processing box 1. The processing box 1 is also equipped with a replacement component for discharging the activated carbon particles inside the shell 4 and adding activated carbon particles to the shell 4.

[0033] The filter bag 3 is disposed on one side of the housing 4 and is bowl-shaped. The processing box 1 is provided with a pushing component for pushing the filter bag 3 for cleaning.

[0034] In use, connect the exhaust gas inlet pipe to the left connecting pipe 2 and the exhaust pipe to the right connecting pipe 2 to discharge the exhaust gas into the treatment box 1. The exhaust gas first passes through the filter bag 3, where large particles of dust and impurities are blocked and retained. Then, the exhaust gas passes through the housing 4, which contains a large number of activated carbon particles. The activated carbon particles can adsorb and treat the passing exhaust gas, adsorbing harmful substances in the exhaust gas onto the activated carbon particles, thus achieving effective treatment of the exhaust gas. When the activated carbon particles in the housing 4 facing the exhaust gas are saturated, the housing 4 can be rotated by the rotating component, so that the activated carbon particles that were originally facing away from the exhaust gas and were not saturated are facing the exhaust gas. When these activated carbon particles are saturated, the activated carbon particles in the housing 4 can be replaced by the replacement component. During the replacement process, the pushing component can push the filter bag 3, making it easy to clean and remove the dust and impurities attached to the filter bag 3.

[0035] Reference Figure 2 , Figure 5 and Figure 6The rotating assembly includes a first fixed seat 5 fixed to the inner wall of the treatment box 1. The two ends of the housing 4 are respectively connected and fixed to an inlet pipe 6 and an outlet pipe 7. Both the inlet pipe 6 and the outlet pipe 7 are rotatably connected to the first fixed seat 5. The top end of the inlet pipe 6 is rotatably connected to a storage tank 8 fixed to the treatment box 1 via a support column. A bevel gear ring 9 is fixed to the outer wall of the inlet pipe 6. A motor 10 is installed above the treatment box 1. The output shaft of the motor 10 is fixed to a first rotating shaft 11. One end of the first rotating shaft 11 is fixed to a bevel gear 12 that meshes with the bevel gear ring 9. When it is necessary to rotate the housing 4 and the activated carbon particles, the motor 10 is started. The motor 10 drives the first rotating shaft 11 to rotate, which in turn drives the bevel gear 12 to rotate. The bevel gear 12 drives the bevel gear ring 9 to rotate, which in turn drives the inlet pipe 6 to rotate. The inlet pipe 6 then drives the housing 4 to rotate, causing the housing 4 to rotate 180 degrees within the first fixed seat 5, so that the activated carbon particles facing away from the exhaust gas are facing the exhaust gas.

[0036] Reference Figure 3 , Figure 4 , Figure 5 and Figure 7The replacement assembly includes a second rotating shaft 13 rotatably connected within the feed pipe 6 and the discharge pipe 7. A sealing 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. A connecting ring 17 is provided on the outer side of the feed pipe 6 and the discharge pipe 7. An annular groove 18 is formed on the connecting ring 17. One end of the rotating column 16 is slidably connected within the annular groove 18. A first connecting rod 19 is fixedly connected to each 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 post 20. A limiting block 21 is provided on one side of the processing box 1. A limiting track is provided on the limiting block 21. One end of each of the two connecting posts 20 is slidably connected within the limiting track. When it is necessary to replace the activated carbon particles inside the shell 4, the limiting block 21 is rotated. The rotation of the limiting block 21 drives the limiting track to rotate. The rotation of the limiting track can drive the lower connecting post 20 to move downward first. The connecting post 20 drives the lower connecting ring 17 to move downward through the first connecting rod 19. The connecting ring 17 drives the rotating post 16 to move downward through the annular groove 18. 16 drives the second rotating shaft 13 to rotate via the rotating plate 15. The second rotating shaft 13 drives the sealing plate 14 inside the discharge pipe 7 to rotate 90 degrees, that is, the discharge pipe 7 opens, and the activated carbon particles inside the shell 4 will be discharged from the discharge pipe 7. After discharge, the connecting column 20 is reset by rotating the limiting block 21, thereby causing the sealing plate 14 to re-close the discharge pipe 7, causing the limiting block 21 to rotate in the opposite 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 via the first connecting rod 19. The connecting ring 17 passes through the annular groove 18, the rotating column 16, the rotating plate 15, and... The second rotating shaft 13 drives the sealing plate 14 inside the feed pipe 6 to rotate 90 degrees, that is, the feed pipe 6 opens, and the activated carbon particles in the storage tank 8 enter the shell 4 from the feed pipe 6 to replenish the activated carbon particles in the shell 4. After the addition is completed, the limit block 21 is reset so that the sealing plate 14 inside the feed pipe 6 can re-close the feed pipe 6, thus achieving the purpose of opening and replacing the activated carbon particles. By setting the annular groove 18, when the shell 4 is driven to rotate by the rotating component, the sealing plate 14 and the rotating column 16 will rotate with the shell 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] Reference Figure 7The limiting track of the limiting block 21 includes a circular track 2101, a first convex area 2102, and a second convex area 2103. Both connecting posts 20 are located within the circular track 2101. The distance from the first convex area 2102 and the second convex area 2103 to the center of the limiting block 21 is greater than the distance from the circular track 2101 to the center of the limiting block 21. When it is necessary for the lower connecting post 20 to move downward, the limiting block 21 rotates clockwise. The rotation of the limiting block 21 causes the second convex area 2103 to rotate towards the lower connecting post 20, allowing the lower connecting post 20 to enter the second convex area 2103. The upper connecting post 20 remains within the circular track 2101. When the lower connecting column 20 slides inward, it can move downward, causing the lower closing plate 14 to rotate, thus opening the discharge pipe 7. This causes the limiting block 21 to rotate in the opposite direction, allowing the lower connecting column 20 to return to the circular track 2101, thus closing the discharge pipe 7. As the limiting block 21 continues to rotate in the opposite direction, the upper connecting column 20 enters the first protrusion area 2102. The lower connecting column 20 continues to slide in the circular track 2101, allowing the upper connecting column 20 to move upward. This causes the closing plate 14 of the upper feed pipe 6 to rotate, thus opening the feed pipe 6. This causes the limiting block 21 to rotate in the forward direction, allowing the upper connecting column 20 to return to the circular track 2101.

[0038] Reference Figure 5 and Figure 6The processing box 1 is equipped with a switching drive assembly for switching the position of the motor 10 so that it can drive the replacement component. The switching drive assembly includes an electric push rod 22 fixed to the top of the processing box 1. An L-shaped plate 23 is fixed to the output end of the electric push rod 22. The motor 10 is mounted on the L-shaped plate 23. A first spur gear 24 is fixed to the outer wall of the first rotating shaft 11. A first rack 25 is provided above one side of the first spur gear 24. A second connecting rod 26 is fixed to the top end of the first rack 25. A fixing plate 27 for vertically limiting the second connecting rod 26 is fixed to the processing box 1. A connecting plate 28 is fixed to the outer wall of the second connecting rod 26. A spring 29 is fixed between the connecting plate 28 and the fixing plate 27. A second rack 30 is fixed to the bottom end of the second connecting rod 26. A third rotating shaft 31 is fixed to the limiting block 21. One end of the third rotating shaft 31 is fixed to the first rack 26. The second sprocket 32 ​​engages with the second rack 30. When the motor 10 needs to drive the replacement component, the electric push rod 22 is activated. The electric push rod 22 drives the L-shaped plate 23 and the motor 10 to move upward, so that the first sprocket 24 engages with the first rack 25, and the bevel gear 12 disengages from the bevel ring 9. The motor 10 drives the first sprocket 24 to rotate through the first rotating shaft 11. The first sprocket 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 sprocket 32. The third rotating shaft 31 can drive the limit block 21 to rotate, thereby realizing the drive to replace the component. The motor 10 drives the first rack 25 to reset, the electric push rod 22 resets the motor 10, and the limit block 21 resets under the action of the spring 29.

[0039] Reference Figure 9 and Figure 10 The inner wall of the treatment box 1 is fixed with a second fixing seat 33. The filter bag 3 is fixed with the inner wall of the second fixing seat 33. The inner wall of the second fixing seat 33 is fixed with a fixing net 34 that is adapted to and in contact with the bowl-shaped filter bag 3. A connecting block 35 that penetrates the fixing net 34 is fixed to the filter bag 3. A first magnet 36 is fixed to the connecting block 35. A second magnet 37 that attracts and contacts the first magnet 36 is fixed 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 larger contact area with the exhaust gas. The first magnet 36 and the second magnet 37 can fix the filter bag 3 to the fixing net 34 through the connecting block 35, preventing the filter bag 3 from drooping and wrinkling, thereby reducing the exhaust gas filtration efficiency.

[0040] Reference 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. A third sprocket 40 meshing with the third rack 38 is fixedly connected to one end of the fourth rotating shaft 39. 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. A second sprocket 43 is fixedly connected to one end of the fifth rotating shaft 42. The second sprocket 43 has fewer teeth than the first sprocket 41. The first sprocket 41 and the second sprocket 43 are connected by a chain 44. A fourth sprocket 45 is fixedly connected to the other end of the fifth rotating shaft 42. A guide post 46 is slidably inserted into the fixing net 34. A fourth rack 47 meshing with the fourth sprocket 45 is fixedly connected to the guide post 46. When the connecting post 2 below... The downward movement of the first connecting rod 19 causes the discharge pipe 7 to open. The downward movement of the first connecting rod 19 can drive the third sprocket 40 to rotate via the third rack 38. The third sprocket 40 drives the fourth rotating shaft 39 to rotate. The fourth rotating shaft 39 drives the fifth rotating shaft 42 to rotate via the first sprocket 41, the second sprocket 43 and the chain 44. Since the second sprocket 43 has fewer teeth than the first sprocket 41, the first sprocket 41 can drive the second sprocket 43 to rotate more times with fewer rotations. The second sprocket 43 drives the fourth sprocket 45 to rotate via the fifth rotating shaft 42. The fourth sprocket 45 can drive the fourth rack 47 and the guide post 46 to move in the middle of the fixed net 34. The guide post 46 can push the connecting block 35 to move, pushing 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. The connecting rope 48 is in a natural hanging state. When the discharge pipe 7 is opened, the corresponding first connecting rod 19 moves downward, thereby pushing the filter bag 3 through the pushing component. The filter bag 3 is pushed, causing the connecting rope 48 to straighten. The activated carbon particles fall from the discharge pipe 7 and are discharged from the shell 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. The vibration can further cause the dust and impurities attached to the filter bag 3 to fall off.

[0042] Working principle: In use, connect the exhaust gas inlet pipe to the left connecting pipe 2 and the exhaust pipe to the right connecting pipe 2 to discharge the exhaust gas into the treatment box 1. The exhaust gas first passes through the filter bag 3, where large particles of dust and impurities are blocked and retained. Then the exhaust gas passes through the shell 4, which contains a large number of activated carbon particles. The activated carbon particles can adsorb the exhaust gas, adsorbing harmful substances in the exhaust gas onto the activated carbon particles, thus achieving effective treatment of the exhaust gas. When the activated carbon particles in the shell 4 facing the exhaust gas are saturated, the rotating component can drive the shell 4 to rotate, so that the activated carbon particles that were originally facing away from the exhaust gas and were not saturated are facing the exhaust gas. When these activated carbon particles are saturated, the replacement component can be used to replace the activated carbon particles in the shell 4. During the replacement process, the pushing component can push the filter bag 3, making it easy to clean and remove the dust and impurities attached to the filter bag 3.

[0043] When it is necessary to rotate the shell 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 ring 9 to rotate. The bevel ring 9 drives the feed pipe 6 to rotate. The feed pipe 6 drives the shell 4 to rotate, so that the shell 4 rotates 180 degrees in the first fixed seat 5, so that the activated carbon particles that are facing away from the waste gas are facing the waste gas.

[0044] When the activated carbon granules inside the shell 4 need to be replaced, the limiting block 21 is rotated. The rotation of the limiting block 21 drives the limiting track to rotate, which in turn drives the lower connecting column 20 to move downwards. The connecting column 20 drives the lower connecting ring 17 to move downwards via the first connecting rod 19. The connecting ring 17 drives the rotating column 16 to move downwards via the annular groove 18. The rotating column 16 drives the second rotating shaft 13 to rotate via the rotating plate 15. The second rotating shaft 13 drives the sealing plate 14 inside the discharge pipe 7 to rotate 90 degrees, that is, the discharge pipe 7 opens, and the activated carbon granules inside the shell 4 are discharged from the shell 4 through the discharge pipe 7. After discharge, the connecting column 20 is reset by rotating the limiting block 21, thereby causing the sealing plate 14 to re-close the discharge pipe 7, causing the limiting block 21 to rotate in the opposite direction. The limiting block 21 can drive the upper connecting column 20 to rotate downwards. The column 20 moves upward, and 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 sealing plate 14 in the feed pipe 6 to rotate 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 opens, and the activated carbon particles in the storage tank 8 enter the shell 4 from the feed pipe 6 to replenish the activated carbon particles in the shell 4. After the addition is completed, the limit block 21 is reset so that the sealing plate 14 in the feed pipe 6 can re-close the feed pipe 6, thus achieving the purpose of opening and replacing the activated carbon particles. By setting the annular groove 18, when the shell 4 is driven to rotate by the rotating component, the sealing plate 14 and the rotating column 16 will rotate with the shell 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.

[0045] When it is necessary for the lower connecting column 20 to move downward, the limiting block 21 rotates in the forward direction. The rotation of the limiting block 21 causes the second convex area 2103 to rotate 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 track 2101, and the lower connecting column 20 can then move downward, causing the lower closing plate 14 to rotate, i.e., the discharge pipe 7 to open. The limiting block 21 rotates in the reverse direction, so that the lower connecting column 20 returns to the circular track 2101, i.e., the discharge pipe 7 closes. The limiting block 21 continues to rotate in the reverse direction, so that the upper connecting column 20 enters the first convex area 2102. The lower connecting column 20 continues to slide in the circular track 2101, and the upper connecting column 20 can then move upward, causing the closing plate 14 of the upper feed pipe 6 to rotate, i.e., the feed pipe 6 to open. The limiting block 21 rotates in the forward direction, so that the upper connecting column 20 returns to the circular track 2101.

[0046] When it is necessary to enable the motor 10 to drive the replacement component, the electric push rod 22 is activated. The electric push rod 22 drives the L-shaped plate 23 and the motor 10 to move upward, so that the first spur gear 24 meshes with the first rack 25, and the bevel gear 12 does not mesh with the bevel ring 9. The motor 10 is activated to drive the first spur gear 24 to rotate through the first rotating shaft 11. The first spur 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 spur gear 32. The third rotating shaft 31 can drive the limit block 21 to rotate, thereby realizing the drive to replace the component. The motor 10 drives the first rack 25 to reset, the electric push rod 22 resets the motor 10, and the limit block 21 resets under the action of the spring 29.

[0047] By setting the filter bag 3 and the fixing net 34 in a bowl shape, the filter bag 3 can have a larger contact area with the exhaust gas. The filter bag 3 can be fixed to the fixing net 34 by the first magnet 36 and the second magnet 37, preventing the filter bag 3 from drooping and wrinkling, thereby reducing the exhaust gas filtration efficiency.

[0048] When the 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 sprocket 40 to rotate through the third rack 38. The third sprocket 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. Since the second sprocket 43 has fewer teeth than the first sprocket 41, the first sprocket 41 can drive the second sprocket 43 to rotate more times with fewer rotations. The second sprocket 43 drives the fourth sprocket 45 to rotate through the fifth rotating shaft 42. The fourth sprocket 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, pushing the filter bag 3 away from the fixed net 34, so that the dust and impurities attached to the filter bag 3 fall off.

[0049] During the opening of the discharge pipe 7, the corresponding first connecting rod 19 moves downward, thereby pushing the filter bag 3 through the pushing component. The filter bag 3 is pushed so that the connecting rope 48 is taut, 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 cause the dust and impurities attached to the filter bag 3 to fall off.

[0050] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0051] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste gas treatment device for metal processing, comprising a treatment box (1), wherein connecting pipes (2) are fixedly connected to both ends of the treatment box (1), characterized in that, Also includes: The shell (4) is Z-shaped and has multiple holes. Activated carbon particles are provided inside the shell (4). The processing box (1) is provided with a rotating component for driving the shell (4) to rotate inside the processing box (1). The processing box (1) is also provided with a replacement component for discharging the activated carbon particles inside the shell (4) and adding activated carbon particles to the shell (4). The rotating assembly includes a first fixed seat (5) fixed to the inner wall of the processing box (1). The two ends of the housing (4) are respectively connected to a feed pipe (6) and a discharge pipe (7). 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) fixed to the processing box (1) by a support column. A bevel gear ring (9) is fixed to the outer wall of the feed pipe (6). A motor (10) is provided above the processing box (1). The output shaft of the motor (10) is fixed to a first rotating shaft (11). One end of the first rotating shaft (11) is fixed to a bevel gear (12) that meshes with the bevel gear ring (9). The replacement assembly includes a second rotating shaft (13) rotatably connected within the feed pipe (6) and the discharge pipe (7). A sealing plate (14) is fixed to the outer wall of the second rotating shaft (13). A rotating plate (15) is fixed to one end of the second rotating shaft (13). A rotating column (16) is fixed to the rotating plate (15). A connecting ring (17) is provided on the outer side of the feed pipe (6) and the discharge pipe (7). An annular groove (18) is formed on the connecting ring (17). The rotating column (16)... One end is slidably connected in the annular groove (18), and a first connecting rod (19) is fixedly connected to each of the connecting rings (17). A connecting plate for vertically limiting the first connecting rod (19) is fixedly connected to the processing box (1). A connecting column (20) is fixedly connected to one end of the first connecting rod (19). A limiting block (21) is provided on one side of the processing box (1). A limiting track is opened on the limiting block (21). One end of each of the two connecting columns (20) is slidably connected in the limiting track. The limiting track of the limiting block (21) includes a circular track (2101), a first convex area (2102), and a second convex area (2103). Both connecting posts (20) are located within the circular track (2101). The distance from the first convex area (2102) and the second convex area (2103) to the center of the limiting block (21) is greater than the distance from the circular track (2101) to the center of the limiting block (21). The processing box (1) is provided with a switching drive assembly for switching the position state of the motor (10) so that it can drive the replacement component. The switching drive assembly includes an electric push rod (22) fixed to the top of the processing box (1). An L-shaped plate (23) is fixed to the output end of the electric push rod (22). The motor (10) is mounted on the L-shaped plate (23). A first spur gear (24) is fixed to the outer wall of the first rotating shaft (11). A first rack (25) is provided above one side of the first spur gear (24). A top end of the first rack (25) is fixed to... The second connecting rod (26) is fixedly connected to the processing box (1) with a fixing plate (27) for vertically limiting the second connecting rod (26). The outer wall of the second connecting rod (26) is fixedly connected with a connecting plate (28). 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). The limiting block (21) is fixedly connected with a third rotating shaft (31). One end of the third rotating shaft (31) is fixedly connected with a second spur gear (32) that meshes with the second rack (30).

2. The waste gas treatment device for metal processing according to claim 1, characterized in that, The device also includes a filter bag (3), which is disposed on one side of the housing (4) and is bowl-shaped. The processing box (1) is provided with a pushing component for pushing the filter bag (3) for cleaning.

3. The waste gas treatment device for metal processing according to claim 2, characterized in that, The inner wall of the processing box (1) is fixed with a second fixing seat (33), the filter bag (3) is fixed with the inner wall of the second fixing seat (33), the inner wall of the second fixing seat (33) is fixed with a fixing mesh (34) that is adapted to and in contact with the bowl-shaped filter bag (3), the filter bag (3) is fixed with a connecting block (35) that penetrates the fixing mesh (34), the connecting block (35) is fixed with a first magnet (36), and the fixing mesh (34) is fixed with a second magnet (37) that attracts and contacts the first magnet (36).

4. The waste gas treatment device for metal processing according to claim 3, characterized in that, The pushing assembly includes a third rack (38) fixed to one of the first connecting rods (19), a fourth shaft (39) rotatably connected to the side wall of the processing box (1), a third sprocket (40) meshing with the third rack (38) fixed to one end of the fourth shaft (39), a first sprocket (41) fixed to the outer wall of the fourth shaft (39), a fifth shaft (42) rotatably connected to the processing box (1), a second sprocket (43) fixed to one end of the fifth shaft (42), the second sprocket (43) having fewer teeth than the first sprocket (41), the first sprocket (41) and the second sprocket (43) being connected by a chain (44), a fourth sprocket (45) fixed to the other end of the fifth shaft (42), a guide post (46) slidably inserted on the fixed net (34), and a fourth rack (47) meshing with the fourth sprocket (45) fixed to the guide post (46).

5. The waste gas treatment device for metal processing according to claim 4, characterized in that, The inner wall of the discharge pipe (7) is fixed with an elastic connecting piece (49), and a connecting rope (48) is fixed between the connecting piece (49) and the filter bag (3), and the connecting rope (48) is in a natural hanging state.

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