Treatment device for waste gas containing dichloromethane

Abstract

The invention belongs to the technical field of waste gas treatment, and discloses a treatment device for waste gas containing dichloromethane. Comprising a filter pipe, an adsorption pipe and a communicating pipe, a stainless steel mesh and a non-woven fabric are arranged in the filter pipe, two filter screens are fixedly connected in the adsorption pipe, and the air purifier further comprises an air inlet area and an air outlet area which contain activated carbon particles. By arranging the driving assembly, after activated carbon particles are adsorbed for a period of time, a sealing plate is opened firstly, a first motor is started, the first motor drives a second rotating shaft and a second bevel gear to rotate, the second bevel gear drives the first rotating shaft to rotate through the first bevel gear, and the first rotating shaft can drive two spiral blades to rotate; the two spiral blades enable the activated carbon particles in the air inlet area to enter the air outlet area through the second through opening, and the activated carbon particles in the air outlet area enter the air inlet area through the first through opening, so that the activated carbon particles are driven to move in the adsorption pipe, and the purpose that the activated carbon particles in each section can fully and uniformly adsorb impurities is achieved.

Description

Technical Field

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

[0002] Dichloromethane has the advantages of low flammability and strong solubility. It is widely used in agriculture, medicine, organic synthesis, semiconductors and other industries. However, it has a low boiling point and is very easy to volatilize into the surrounding environment. If it is not treated, it will cause human poisoning on the one hand, and on the other hand, it will decompose under the action of light to produce phosgene and carbon monoxide, thereby destroying the ozone layer. At present, dichloromethane is usually treated by adsorption, but before adsorbing dichloromethane, a special treatment device is needed to treat impurities such as dust in dichloromethane to prevent it from affecting the subsequent adsorption of dichloromethane.

[0003] At present, the treatment device mainly adopts stainless steel mesh and non-woven filter cloth to intercept the dust and foreign matter therein. At the same time, the dichloromethane waste gas contains trace amounts of paraffin oil or other impurities. Therefore, an activated carbon particle treatment section is installed in the pretreatment device to remove the paraffin oil in the dichloromethane. However, the activated carbon particle treatment section of the current treatment device is difficult to fully and evenly adsorb the impurities in the dichloromethane. The impurities are usually removed when the dichloromethane passes through the activated carbon particle treatment section. The activated carbon particles in the front section will be saturated with adsorption before the rear section, which will cause waste when replacing the activated carbon particles, and the activated carbon particles in the rear section are not saturated with adsorption. Summary of the invention

[0004] The present invention is to solve the problem in the background technology that the activated carbon particle treatment section of the current treatment device is difficult to fully and evenly adsorb impurities in dichloromethane, and proposes a treatment device for waste gas containing dichloromethane.

[0005] To achieve the above object, the present invention provides the following technical solution: a treatment device for waste gas containing dichloromethane, comprising a filter tube, an adsorption tube and a connecting tube, wherein a stainless steel mesh and a non-woven fabric are arranged in the filter tube, two filter meshes are fixedly connected in the adsorption tube, and further comprising: An air inlet area and an air outlet area containing activated carbon particles inside, the air inlet area and the air outlet area are arranged in the adsorption tube, the air inlet area and the air outlet area are connected to the filter tube and the connecting tube respectively, and the air inlet area and the air outlet area are connected through a first opening and a second opening, and a driving component for driving the activated carbon particles inside the air inlet area and the air outlet area to circulate is arranged in the adsorption tube; Two connecting pipes are connected and fixedly connected to the adsorption pipes, one of the connecting pipes is provided with a storage bucket, and the adsorption pipe is provided with an opening and closing component for opening and closing the two connecting pipes.

[0006] Furthermore, the driving assembly includes two first rotating shafts rotatably connected to the air inlet area and the air outlet area in the adsorption tube, the outer walls of the first rotating shafts are fixedly connected with spiral blades, the thread directions of the two spiral blades are opposite, one end of the first rotating shafts is fixedly connected with a first bevel gear, the bottom of the connecting tube is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected to a second rotating shaft, the outer wall of the second rotating shaft is fixedly connected with two second bevel gears, and the second bevel gears are respectively meshed with the corresponding first bevel gears.

[0007] Furthermore, the opening and closing component includes an electric push rod fixed to the adsorption tube through a bracket plate, the output end of the electric push rod is fixed to a first square plate, the first square plate is fixed to a U-shaped rod, both ends of the U-shaped rod are respectively fixed to a first rack and a second rack, a third rotating shaft is rotatably connected in the two connecting tubes, one end of the third rotating shaft is fixed to a circular plate, the other ends of the two third rotating shafts are respectively fixed to a first gear and a second gear, the second rack is meshed with the second gear, and the distance between the first rack and the first gear is the length of the second rack.

[0008] Furthermore, one end of the two third rotating shafts is respectively fixed with a first block and a second block, the first rack is fixed with a first limit frame through a fixed rod, the first limit frame includes a first limit section and a first rotation section, the height of the first limit section is equal to the height of the first block, the height of the first rotation section is equal to the length of the diagonal of the first block, the second rack is fixed with a second limit frame through a fixed rod, the second limit frame includes a second limit section and a second rotation section, the height of the second limit section is equal to the height of the second block, and the height of the second rotation section is equal to the length of the diagonal of the second block.

[0009] Furthermore, a cooling component is provided on the first rotating shaft and the spiral blade, and the cooling component includes a spiral cavity opened in the spiral blade, and the first vertical tube and the second vertical tube are respectively fixedly connected to the filter tube and the connecting tube, and one end of the first vertical tube and the second vertical tube is fixedly connected to a hollow circular ring block, and the two hollow circular ring blocks are respectively rotatably connected to the two first rotating shafts, and a U-shaped channel connected to the hollow circular ring block is opened in the first rotating shaft, and the U-shaped channel is connected to the spiral cavity, and an L-shaped channel connected to the spiral cavity is opened in the first rotating shaft, and one end of the L-shaped channel is connected to a hollow rotating block rotatably connected to one end of the first rotating shaft, and the hollow rotating block is fixed to the adsorption tube, and a U-shaped tube is fixed between the two hollow rotating blocks.

[0010] Furthermore, a closing plate is provided in the second opening, a rectangular groove is provided in the adsorption tube, the closing plate is slidably inserted in the rectangular groove, a connecting plate slidably connected to the adsorption tube is fixedly connected to the closing plate, a second square plate is fixedly connected to the connecting plate, the second square plate is rotatably connected to the telescopic rod, the adsorption tube is rotatably connected to a rotating shaft, one end of the telescopic rod is fixedly connected to the outer wall of the rotating shaft, the outer wall of the rotating shaft is fixedly connected to the first connecting rod, one end of the first connecting rod is rotatably connected to a third plate, a first spring is fixedly connected between the third plate and the second square plate, a limiting opening is provided on the first connecting rod, a limiting column is provided in the limiting opening, a sliding plate slidably connected to the adsorption tube is fixedly connected to the limiting column, the adsorption tube is fixedly connected to a guide rod, the outer wall of the guide rod is slidably connected to the rectangular plate, a plug plate is slidably provided on the rectangular plate, the plug plate is directly opposite to the U-shaped rod, and a second connecting rod is hinged between the rectangular plate and the sliding plate.

[0011] Furthermore, a slot is provided in the rectangular plate, the plug plate is slidably inserted in the slot, a second spring is fixedly connected between the plug plate and the slot, and an electromagnet is fixedly connected to both the plug plate and the slot.

[0012] Furthermore, a connecting rod is fixedly connected to the U-shaped rod, one end of the connecting rod is fixedly connected to a third rack, a fixed frame is fixedly connected in the filter tube, a fourth rotating shaft is rotatably connected to the fixed frame, the stainless steel mesh is fixedly connected to the bottom end of the fourth rotating shaft, and the top end of the fourth rotating shaft is fixedly connected to a third gear meshing with the third rack.

[0013] Furthermore, a plurality of fixed plates are fixedly connected to the filter tube, a fifth rotating shaft is rotatably connected between two of the fixed plates, a roller is fixedly connected to the outer wall of the fifth rotating shaft, the non-woven fabric is wound and fixedly connected to the outer walls of the two rollers, a second motor is fixedly connected to one of the fixed plates, an output shaft of the second motor is fixedly connected to one end of one of the fifth rotating shafts, a pulley is fixedly connected to one end of the two fifth rotating shafts, and the two pulleys are connected via a transmission belt.

[0014] The technical effects and advantages of the device for treating waste gas containing dichloromethane of the present invention are as follows: (1) By setting a driving component, when the activated carbon particles have been adsorbed for a period of time, the closing plate is opened first, and the first motor is started. The first motor drives the second rotating shaft and the second bevel gear to rotate. The second bevel gear drives the first rotating shaft to rotate through the first bevel gear. The first rotating shaft can drive the two spiral blades to rotate. The two spiral blades make the activated carbon particles in the air inlet area enter the air outlet area through the second opening, and the activated carbon particles in the air outlet area enter the air inlet area through the first opening, thereby driving the activated carbon particles to move in the adsorption tube, so as to achieve the purpose of making each section of the activated carbon particles fully and evenly adsorb impurities.

[0015] (2) By setting up an opening and closing component, when it is necessary to replace the activated carbon particles, the electric push rod is started to drive the first square plate and the U-shaped rod to move, the U-shaped rod drives the first rack and the second rack to move, the second rack first drives the second gear to rotate, the second gear drives the corresponding third rotating shaft and the circular plate to rotate ninety degrees, and cooperates with the spiral blades to drive the activated carbon particles to move, so that the activated carbon particles can be discharged from the lower connecting pipe to the adsorption tube, and the U-shaped rod continues to move through the electric push rod, so that the circular plate in the lower connecting pipe rotates ninety degrees to close it. At this time, the first rack just meshes with the first gear, and the first rack continues to move. The first rack drives the circular plate in the upper connecting pipe to rotate through the first gear, and the activated carbon particles in the storage barrel enter the adsorption tube from the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional schematic diagram of the filter tube, the adsorption tube and the connecting tube in the present invention; Figure 3 It is a cross-sectional schematic diagram of the adsorption tube and the spiral blade in the present invention; Figure 4 It is a cross-sectional schematic diagram of the connecting pipe in the present invention; Figure 5 For the present invention Figure 3 The enlarged schematic diagram at A in the middle; Figure 6 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle; Figure 7 It is a schematic diagram of a local three-dimensional structure in the present invention; Figure 8 For the present invention Figure 7 The enlarged schematic diagram at C in the middle; Fig. 9 It is a schematic cross-sectional view of a rectangular plate in the present invention; Fig.10 It is a schematic diagram of the non-woven fabric structure of the present invention.

[0017] In the figure: 1. Filter tube; 2. Adsorption tube; 3. Connecting tube; 4. Stainless steel mesh; 5. Non-woven fabric; 6. Filter mesh; 7. First opening; 8. Second opening; 9. Closing plate; 10. First rotating shaft; 11. Spiral blade; 12. First bevel gear; 13. First motor; 14. Second rotating shaft; 15. Second bevel gear; 16. Electric push rod; 17. First square plate; 18. U-shaped rod; 19. First rack; 20. Second rack; 21. Connecting tube; 22. Third rotating shaft; 23. Round plate; 24. First gear; 25. Second gear; 26. First square block; 27. Second square block; 28. First limiting frame; 2801. First limiting section; 2802. First rotating section; 29. ​​Second limiting frame; 2901. Second rotating section; 2902. Second limiting section; 30. First vertical pipe; 31. Hollow circular ring block; 32. U-shaped channel; 33. Spiral cavity; 34. L-shaped channel; 35. Hollow rotating block; 36. U-shaped tube; 37. Second vertical tube; 38. Connecting plate; 39. Rectangular groove; 40. Second square plate; 41. Telescopic rod; 42. Rotating shaft; 43. First connecting rod; 44. Third party plate; 45. First spring; 46. Limiting opening; 47. Limiting column; 48. Sliding plate; 49. Guide rod; 50. Rectangular plate; 51. Insert plate; 52. Second connecting rod; 53. Slot; 54. Second spring; 55. Electromagnet; 56. Connecting rod; 57. Third rack; 58. Fixed frame; 59. Fourth rotating shaft; 60. Third gear; 61. Fixed plate; 62. Fifth rotating shaft; 63. Roller; 64. Second motor; 65. Pulley; 66. Transmission belt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Reference Figure 1 - Fig.10 A treatment device for waste gas containing dichloromethane comprises a filter tube 1, an adsorption tube 2 and a connecting tube 3, wherein a stainless steel mesh 4 and a non-woven fabric 5 are arranged in the filter tube 1, two filter meshes 6 are fixedly connected in the adsorption tube 2, and further comprises: The air inlet area and the air outlet area contain activated carbon particles inside, and the air inlet area and the air outlet area are arranged in the adsorption tube 2, and the air inlet area and the air outlet area are respectively connected with the filter tube 1 and the connecting tube 3, and the air inlet area and the air outlet area are connected through the first opening 7 and the second opening 8. The adsorption tube 2 is provided with a driving component for driving the activated carbon particles inside the air inlet area and the air outlet area to circulate; Two connecting pipes 21, the connecting pipes 21 are connected and fixed to the adsorption pipe 2, one of the connecting pipes 21 is provided with a storage bucket, and the adsorption pipe 2 is provided with an opening and closing component for opening and closing the two connecting pipes 21; When in use, the exhaust gas inlet pipe is connected to the filter tube 1, and the exhaust pipe is connected to the connecting pipe 3. The exhaust gas first enters the filter tube 1. The stainless steel mesh 4 can effectively intercept larger dust particles and further remove smaller dust and foreign matter. After filtration, the exhaust gas enters the air inlet area of ​​the adsorption tube 2, and the exhaust gas enters the air outlet area through the second port 8, and is finally discharged through the connecting pipe 3. The activated carbon particles in the air inlet area and the air outlet area can remove paraffin oil and other impurities and foreign matter in the exhaust gas. By setting a driving component, the activated carbon particles can be driven to circulate in the air inlet area and the air outlet area of ​​the adsorption tube 2, so that the activated carbon particles in each position can fully and evenly adsorb foreign matter to prevent uneven adsorption of the activated carbon particles. By setting an opening and closing component, the activated carbon particles can be quickly replaced.

[0020] Reference Figure 2 and Figure 3 The driving assembly includes two first rotating shafts 10 rotatably connected to the air inlet area and the air outlet area in the adsorption tube 2, the outer walls of the first rotating shafts 10 are fixedly connected with spiral blades 11, and the thread directions of the two spiral blades 11 are opposite. One end of the first rotating shaft 10 is fixedly connected with a first bevel gear 12, and the bottom of the connecting pipe 3 is fixedly connected with a first motor 13, and the output shaft of the first motor 13 is fixedly connected with a second rotating shaft 14. The outer wall of the second rotating shaft 14 is fixedly connected with two second bevel gears 15, and the second bevel gears 15 are respectively meshed with the corresponding first bevel gears 12; when it is necessary to drive the activated carbon particles in The air inlet area and the air outlet area circulate, and the first motor 13 is started. The first motor 13 drives the second rotating shaft 14 to rotate, and the second rotating shaft 14 drives the two second bevel gears 15 to rotate. The second bevel gears 15 drive the two first rotating shafts 10 to rotate through the first bevel gear 12, and the first rotating shaft 10 drives the spiral blades 11 to rotate. Since the thread directions of the two spiral blades 11 are opposite, the spiral blades 11 in the air inlet area can push the activated carbon particles from the second opening 8 to the first opening 7, and the spiral blades 11 in the air outlet area can push the activated carbon particles from the first opening 7 to the second opening 8, so that the activated carbon particles circulate in the adsorption tube 2.

[0021] Reference Figure 2 and Figure 4, the opening and closing assembly includes an electric push rod 16 fixed to the adsorption tube 2 through a bracket plate, the output end of the electric push rod 16 is fixedly connected to a first square plate 17, a U-shaped rod 18 is fixedly connected to the first square plate 17, and the two ends of the U-shaped rod 18 are respectively fixedly connected to a first rack 19 and a second rack 20, and the two connecting tubes 21 are both rotatably connected with a third rotating shaft 22, one end of the third rotating shaft 22 is fixedly connected to a circular plate 23, and the other ends of the two third rotating shafts 22 are respectively fixedly connected to a first gear 24 and a second gear 25, the second rack 20 is meshed with the second gear 25, and the distance between the first rack 19 and the first gear 24 is the length of the second rack 20; when it is necessary to replace the activated carbon particles, the electric push rod 16 is started, the electric push rod 16 drives the first square plate 17 to move, the first square plate 17 drives the U-shaped rod 18 to move, the U-shaped rod 18 drives the first rack 19 and the second rack 20 to move, the second rack 20 drives the second gear 25 to rotate, and the second gear 25 drives the circular plate 23 in the lower connecting pipe 21 to rotate ninety degrees through the third rotating shaft 22, and cooperates with the spiral blade 11 to rotate in the adsorption tube 2 to discharge the activated carbon particles from the lower connecting pipe 21. After the discharge is completed, the second rack 20 continues to move, and the second rack 20 can drive the circular plate 23 to rotate another ninety degrees. The circular plate 23 closes the lower connecting pipe 21. At this time, the second rack 20 just leaves the second gear 25, and the first rack 19 just meshes with the first gear 24 to drive the first rack 19 to move. The first rack 19 can drive the first gear 24 to rotate. The first gear 24 drives the circular plate 23 in the upper connecting pipe 21 to rotate ninety degrees through the third rotating shaft 22. The activated carbon particles in the storage bucket fall into the adsorption tube 2 through the upper connecting pipe 21. Cooperating with the spiral blade 11, the activated carbon particles can fill the adsorption tube 2. After filling, the electric push rod 16 drives the first rack 19 and the second rack 20 to quickly reset to prevent the activated carbon particles from being discharged from the lower connecting pipe 21. Among them, a driving source can also be set to drive the electric push rod 16, the first rack 19 and the second rack 20 and other structures to one side for a certain distance as a whole, so that the first rack 19 and the second rack 20 will not engage with the first gear 24 and the second gear 25 during the resetting process, and will not drive the circular plate 23 to rotate; wherein, a large number of activated carbon particles are arranged on the circular plate 23, but it can still be easily opened by the electric push rod 16, and the circular plate 23 can also be set as a hollow sphere similar to a ball valve, which will not hinder opening and closing.

[0022] Reference Figure 4, one end of the two third rotating shafts 22 is fixedly connected to the first block 26 and the second block 27 respectively, the first rack 19 is fixedly connected to the first limit frame 28 through a fixing rod, the first limit frame 28 includes a first limit section 2801 and a first rotating section 2802, the height of the first limit section 2801 is equal to the height of the first block 26, the height of the first rotating section 2802 is equal to the length of the diagonal of the first block 26, the second rack 20 is fixedly connected to the second limit frame 29 through a fixing rod, the second limit frame 29 includes a second limit section 2902 and a second rotating section 2901, the height of the second limit section 2902 is equal to the height of the second block 27, the height of the second rotating section 2901 is equal to the length of the diagonal of the second block 27; on the U-shaped rod 1 During the process of driving the first rack 19 and the second rack 20 to move, first the second rack 20 drives the second gear 25 to rotate, the third rotating shaft 22 drives the second block 27 to rotate, and the second block 27 rotates in the second rotating section 2901. At this time, the first block 26 slides in the first limiting section 2801, so that the first gear 24 cannot rotate, and the first gear 24 is limited. When the second rack 20 and the second gear 25 are not engaged, the first rack 19 just engages with the first gear 24. At this time, the first block 26 enters the first rotating section 2802, and the second block 27 enters the second limiting section 2902, and the second gear 25 is limited, so as to prevent the first rack 19 and the second rack 20 from being able to rotate freely when they are not in contact with the first gear 24 and the second gear 25.

[0023] Reference Figure 3 , Figure 5 and Figure 6The first rotating shaft 10 and the spiral blade 11 are provided with a cooling assembly, and the cooling assembly includes a spiral cavity 33 opened in the spiral blade 11. The first vertical pipe 30 and the second vertical pipe 37 are respectively fixedly connected to the filter tube 1 and the connecting pipe 3. One end of the first vertical pipe 30 and the second vertical pipe 37 are fixedly connected to a hollow circular ring block 31. The two hollow circular ring blocks 31 are respectively rotatably connected to the two first rotating shafts 10. A U-shaped channel 32 connected to the hollow circular ring block 31 is opened in the first rotating shaft 10, and the U-shaped channel 32 is connected to the spiral cavity 33. An L-shaped channel 34 connected to the spiral cavity 33 is opened in the first rotating shaft 10, and one end of the L-shaped channel 34 is connected to a hollow rotating block 35 rotatably connected to one end of the first rotating shaft 10. The hollow rotating block 35 is fixedly connected to the adsorption On the tube 2, a U-shaped tube 36 is fixedly connected between the two hollow rotating blocks 35; the cooling liquid is injected from the first vertical tube 30 through an external driving pump, and the liquid passes through the hollow circular ring block 31, U-shaped channel 32, spiral cavity 33, L-shaped channel 34, hollow rotating block 35 and U-shaped tube 36 in the air inlet area in turn into the hollow rotating block 35, L-shaped channel 34, spiral cavity 33, U-shaped channel 32, hollow circular ring block 31 in the air outlet area, and is finally discharged from the second vertical tube 37 to form a cycle. When the liquid is in the spiral cavity 33, the passing exhaust gas can be cooled, which is beneficial to the subsequent adsorption process; wherein, an exhaust gas flow channel is formed between the spiral blade 11 and the adsorption tube 2, and the flow channel is spiral and has a long length. The exhaust gas will inevitably contact the spiral blade 11 when passing through, thereby increasing the cooling time of the exhaust gas.

[0024] Reference Figure 2 , Figure 3 , Figure 7 , Figure 8 and Fig. 9A closing plate 9 is provided in the second opening 8, a rectangular groove 39 is provided in the adsorption tube 2, the closing plate 9 is slidably inserted in the rectangular groove 39, a connecting plate 38 slidably connected to the adsorption tube 2 is fixedly connected to the closing plate 9, a second square plate 40 is fixedly connected to the connecting plate 38, a telescopic rod 41 is rotatably connected to the second square plate 40, a rotating shaft 42 is rotatably connected to the adsorption tube 2, one end of the telescopic rod 41 is fixedly connected to the outer wall of the rotating shaft 42, a first connecting rod 43 is fixedly connected to the outer wall of the rotating shaft 42, one end of the first connecting rod 43 is rotatably connected to a third plate 44, a first spring is fixedly connected between the third plate 44 and the second square plate 40 45, a limiting opening 46 is provided on the first connecting rod 43, a limiting column 47 is arranged in the limiting opening 46, a sliding plate 48 slidably connected to the adsorption tube 2 is fixedly connected to the limiting column 47, a guide rod 49 is fixedly connected to the adsorption tube 2, a rectangular plate 50 is slidably connected to the outer wall of the guide rod 49, a plug plate 51 is slidably arranged on the rectangular plate 50, the plug plate 51 is just opposite to the U-shaped rod 18, and a second connecting rod 52 is hinged between the rectangular plate 50 and the sliding plate 48; when it is necessary to drive the activated carbon particles to move in the adsorption tube 2 or replace the activated carbon particles, the electric push rod 16 is started to drive the U-shaped rod 18 to move, and when the U-shaped rod 18 just starts to move, the U-shaped rod 18 Only a short movement is required to push the plug plate 51 and the rectangular plate 50 to move a short distance, so that the plug plate 51 is inserted into the rectangular plate 50 so that it does not contact the U-shaped rod 18. The rectangular plate 50 drives the sliding plate 48 to move a short distance through the second connecting rod 52. The sliding plate 48 moves a short distance and drives the first connecting rod 43 to rotate around the rotating shaft 42 through the limiting column 47 and the limiting opening 46. The first connecting rod 43 drives the third plate 44 to rotate around the rotating shaft 42, so that the third plate 44 moves to the other side of the rotating shaft 42. The first spring 45 is stretched. At this time, the angle between the first connecting rod 43 and the telescopic rod 41 is less than 180 degrees. Under the action of the first spring 45, the second square plate 40 is moved to the moment The second square plate 40 drives the closing plate 9 to be inserted into the rectangular groove 39 through the connecting plate 38, so that the second opening 8 is opened, that is, the closing plate 9 can be opened in a short distance at the beginning of the movement of the U-shaped rod 18. When it is necessary to reset the closing plate 9, the plug plate 51 is reset first, and the electric push rod 16 drives the U-shaped rod 18 to reset. The U-shaped rod 18 can push the plug plate 51 and the rectangular plate 50 to reset, thereby resetting the closing plate 9; wherein, one end of the closing plate 9 is set in an arc shape, so that the closing plate 9 can move easily in the space full of activated carbon particles, and will not be difficult to move due to carrying a large amount of activated carbon particles, so it can move only through the elastic force of the first spring 45.

[0025] Reference Fig. 9A slot 53 is provided in the rectangular plate 50, and the plug plate 51 is slidably inserted in the slot 53. A second spring 54 is fixedly connected between the plug plate 51 and the slot 53, and an electromagnet 55 is fixedly connected to the plug plate 51 and the slot 53; when the U-shaped rod 18 just starts to move a short distance, the U-shaped rod 18 pushes the plug plate 51 and the rectangular plate 50 to move. After moving to the right position, the two electromagnets 55 are turned on, and the plug plate 51 is inserted into the slot 53 under the action of the magnetic force of the electromagnet 55, and the second spring 54 is compressed. When it is necessary to reset the plug plate 51, the electromagnet 55 is turned off, and under the action of the second spring 54, the plug plate 51 is reset.

[0026] Reference Figure 7 , the U-shaped rod 18 is fixedly connected with a connecting rod 56, one end of the connecting rod 56 is fixedly connected with a third rack 57, a fixed frame 58 is fixedly connected in the filter tube 1, a fourth rotating shaft 59 is rotatably connected to the fixed frame 58, the stainless steel mesh 4 is fixedly connected to the bottom end of the fourth rotating shaft 59, and the top of the fourth rotating shaft 59 is fixedly connected with a third gear 60 meshing with the third rack 57; when the stainless steel mesh 4 is used for a period of time, a large amount of dust is attached to the surface of the stainless steel mesh 4. During the process of the electric push rod 16 driving the U-shaped rod 18 to move, the U-shaped rod 18 drives the third rack 57 to move through the connecting rod 56, and the third rack 57 drives the fourth rotating shaft 59 to rotate through the third gear 60, and the fourth rotating shaft 59 drives the stainless steel mesh 4 to rotate in the fixed frame 58. By blowing clean wind from the outside, the dust attached to the stainless steel mesh 4 can be blown off, and the dust will be blown onto the non-woven fabric 5. The U-shaped rod 18 is reset to drive the stainless steel mesh 4 to reset.

[0027] Reference Figure 2 and Fig.10, a plurality of fixed plates 61 are fixedly connected to the filter tube 1, a fifth rotating shaft 62 is rotatably connected between two of the fixed plates 61, a winding roller 63 is fixedly connected to the outer wall of the fifth rotating shaft 62, the non-woven fabric 5 is wound and fixedly connected to the outer walls of the two winding rollers 63, a second motor 64 is fixedly connected to one of the fixed plates 61, the output shaft of the second motor 64 is fixedly connected to one end of one of the fifth rotating shafts 62, a pulley 65 is fixedly connected to one end of the two fifth rotating shafts 62, and the two pulleys 65 are connected by a transmission belt 66; when the non-woven fabric 5 is used for a period of time, a large amount of impurities are attached to its surface, the second motor 64 is started, the second motor 64 drives the fifth rotating shaft 62 to rotate, and the fifth rotating shaft 62 drives the other fifth rotating shaft 62 through the pulley 65 and the transmission belt 66 The fifth rotating shaft 62 rotates, and the fifth rotating shaft 62 can drive the two winding rollers 63 to rotate at the same time. The upper winding roller 63 can release the new non-woven fabric 5, and the lower winding roller 63 can reel in the old non-woven fabric 5, so as to achieve the purpose of replacing the non-woven fabric 5; wherein, before replacing the non-woven fabric 5, the dust on the stainless steel mesh 4 is blown onto the non-woven fabric 5, and the non-woven fabric 5 intercepts the dust, and part of the dust will fall on the side of the non-woven fabric 5 close to the stainless steel mesh 4. In order to ensure the closedness of the filter tube 1 at the non-woven fabric 5, a sealing structure needs to be provided at the place where the non-woven fabric 5 passes through the filter tube 1. When the non-woven fabric 5 needs to be replaced, the sealing structure is opened to replace the non-woven fabric 5 normally. Replacing the non-woven fabric 5 can bring out the dust, and the dust on the side of the non-woven fabric 5 close to the stainless steel mesh 4 will directly fall out of the filter tube 1 due to the opening of the sealing structure.

[0028] Working principle: When in use, connect the exhaust gas inlet pipe to the filter tube 1, and connect the exhaust pipe to the connecting pipe 3. The exhaust gas first enters the filter tube 1. The stainless steel mesh 4 can effectively intercept larger dust particles and further remove smaller dust and foreign matter. After filtration, the exhaust gas enters the air inlet area of ​​the adsorption tube 2. The exhaust gas enters the air outlet area through the second port 8 and is finally discharged through the connecting pipe 3. The activated carbon particles in the air inlet area and the air outlet area can remove paraffin oil and other impurities and foreign matter in the exhaust gas. By setting a driving component, the activated carbon particles can be driven to circulate in the air inlet area and the air outlet area of ​​the adsorption tube 2, so that the activated carbon particles in each position can fully and evenly adsorb foreign matter to prevent uneven adsorption of the activated carbon particles. By setting an opening and closing component, the activated carbon particles can be quickly replaced; When it is necessary to drive the activated carbon particles to circulate in the air inlet area and the air outlet area, the first motor 13 is started, the first motor 13 drives the second rotating shaft 14 to rotate, the second rotating shaft 14 drives the two second bevel gears 15 to rotate, the second bevel gears 15 drive the two first rotating shafts 10 to rotate through the first bevel gear 12, and the first rotating shaft 10 drives the spiral blades 11 to rotate. Since the thread directions of the two spiral blades 11 are opposite, the spiral blades 11 in the air inlet area can push the activated carbon particles from the second opening 8 to the first opening 7, and the spiral blades 11 in the air outlet area can push the activated carbon particles from the first opening 7 to the second opening 8, so that the activated carbon particles circulate in the adsorption tube 2; When the activated carbon particles need to be replaced, the electric push rod 16 is started, and the electric push rod 16 drives the first square plate 17 to move, the first square plate 17 drives the U-shaped rod 18 to move, the U-shaped rod 18 drives the first rack 19 and the second rack 20 to move, the second rack 20 drives the second gear 25 to rotate, and the second gear 25 drives the circular plate 23 in the lower connecting pipe 21 to rotate ninety degrees through the third rotating shaft 22, and cooperates with the spiral blade 11 to rotate in the adsorption tube 2 to discharge the activated carbon particles from the lower connecting pipe 21. After the discharge is completed, the second rack 20 continues to move, and the second rack 20 can drive the circular plate 23 to rotate another ninety degrees, and the circular plate 23 connects the lower The pipe 21 is closed, and at this time, the second rack 20 just leaves the second gear 25, and the first rack 19 just meshes with the first gear 24, driving the first rack 19 to move. The first rack 19 can drive the first gear 24 to rotate. The first gear 24 drives the circular plate 23 in the upper connecting pipe 21 to rotate ninety degrees through the third rotating shaft 22. The activated carbon particles in the storage barrel fall into the adsorption tube 2 through the upper connecting pipe 21. With the help of the spiral blade 11, the activated carbon particles can fill the adsorption tube 2. After filling, the first rack 19 and the second rack 20 are driven by the electric push rod 16 to quickly reset to prevent the activated carbon particles from being discharged from the lower connecting pipe 21. Among them, a driving source can also be set to drive the electric push rod 16, the first rack 19, the second rack 20 and other structures as a whole to move a certain distance to one side, so that the first rack 19 and the second rack 20 will not mesh with the first gear 24 and the second gear 25 during the reset process, and will not drive the circular plate 23 to rotate; When the U-shaped rod 18 drives the first rack 19 and the second rack 20 to move, first the second rack 20 drives the second gear 25 to rotate, the third rotating shaft 22 drives the second block 27 to rotate, and the second block 27 rotates in the second rotating section 2901. At this time, the first block 26 slides in the first limiting section 2801, so that the first gear 24 cannot rotate, and the first gear 24 is limited. When the second rack 20 is not meshed with the second gear 25, the first rack 19 is just meshed with the first gear 24. At this time, the first block 26 enters the first rotating section 2802, and the second block 27 enters the second limiting section 2902 to limit the second gear 25, so as to prevent the first rack 19 and the second rack 20 from being in contact with the first gear 24 and the second gear 25. The circular plate 23 cannot rotate at will; The cooling liquid is injected from the first vertical pipe 30 through an external driving pump, and the liquid passes through the hollow circular ring block 31, U-shaped channel 32, spiral cavity 33, L-shaped channel 34, hollow rotating block 35 and U-shaped tube 36 in the air inlet area in turn, and enters the hollow rotating block 35, L-shaped channel 34, spiral cavity 33, U-shaped channel 32, hollow circular ring block 31 in the air outlet area, and finally is discharged from the second vertical pipe 37 to form a cycle. When the liquid is in the spiral cavity 33, it can cool down the exhaust gas passing through, which is beneficial to the subsequent adsorption process; When it is necessary to drive the activated carbon particles to move in the adsorption tube 2 or replace the activated carbon particles, the electric push rod 16 is started to drive the U-shaped rod 18 to move. When the U-shaped rod 18 just starts to move, the U-shaped rod 18 only needs to move a short distance to push the plug plate 51 and the rectangular plate 50 to move a short distance, so that the plug plate 51 is inserted into the rectangular plate 50 so that it does not contact the U-shaped rod 18. The rectangular plate 50 drives the sliding plate 48 to move a short distance through the second connecting rod 52. The sliding plate 48 moves a short distance and drives the first connecting rod 43 to rotate around the rotating shaft 42 through the limiting column 47 and the limiting opening 46. The first connecting rod 43 drives the third plate 44 to rotate around the rotating shaft 42, so that the third plate 44 The square plate 44 moves to the other side of the rotating shaft 42, and the first spring 45 is stretched. At this time, the angle between the first connecting rod 43 and the telescopic rod 41 is less than 180 degrees. Under the action of the first spring 45, the second square plate 40 moves toward the rectangular groove 39. The second square plate 40 drives the closing plate 9 to be inserted into the rectangular groove 39 through the connecting plate 38, so that the second opening 8 is opened, that is, the closing plate 9 can be opened at a short distance at the beginning of the movement of the U-shaped rod 18. When it is necessary to reset the closing plate 9, the plugging plate 51 is reset first, and the electric push rod 16 drives the U-shaped rod 18 to reset. The U-shaped rod 18 can push the plugging plate 51 and the rectangular plate 50 to reset, thereby resetting the closing plate 9; When the U-shaped rod 18 starts to move a short distance, the U-shaped rod 18 pushes the plug plate 51 and the rectangular plate 50 to move. After the movement is in place, the two electromagnets 55 are turned on, and the plug plate 51 is inserted into the slot 53 under the action of the magnetic force of the electromagnets 55, and the second spring 54 is compressed. When it is necessary to reset the plug plate 51, the electromagnet 55 is turned off, and the plug plate 51 is reset under the action of the second spring 54; After the stainless steel mesh 4 has been used for a period of time, a large amount of dust is attached to its surface. When the electric push rod 16 drives the U-shaped rod 18 to move, the U-shaped rod 18 drives the third rack 57 to move through the connecting rod 56, and the third rack 57 drives the fourth rotating shaft 59 to rotate through the third gear 60. The fourth rotating shaft 59 drives the stainless steel mesh 4 to rotate in the fixed frame 58. The dust attached to the stainless steel mesh 4 can be blown off by blowing clean wind from the outside, and the dust will be blown onto the non-woven fabric 5. The U-shaped rod 18 is reset to drive the stainless steel mesh 4 to reset. After the non-woven fabric 5 has been used for a period of time, a large amount of impurities are attached to its surface. The second motor 64 is started, and the second motor 64 drives the fifth rotating shaft 62 to rotate. The fifth rotating shaft 62 drives another fifth rotating shaft 62 to rotate through the pulley 65 and the transmission belt 66. The fifth rotating shaft 62 can drive two rollers 63 to rotate at the same time. The upper roller 63 can release the new non-woven fabric 5, and the lower roller 63 can reel in the old non-woven fabric 5, thereby achieving the purpose of replacing the non-woven fabric 5.

[0029] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0030] Finally: 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 in the protection scope of the present invention.

Claims

1. A treatment device for waste gas containing dichloromethane, comprising a filter tube (1), an adsorption tube (2) and a connecting tube (3), wherein a stainless steel mesh (4) and a non-woven fabric (5) are arranged in the filter tube (1), and two filter meshes (6) are fixedly connected in the adsorption tube (2), characterized in that: Also includes: An air inlet area and an air outlet area containing activated carbon particles therein, the air inlet area and the air outlet area being arranged in the adsorption tube (2), the air inlet area and the air outlet area being connected to the filter tube (1) and the connecting tube (3) respectively, and the air inlet area and the air outlet area being connected via a first opening (7) and a second opening (8), and a driving component for driving the activated carbon particles in the air inlet area and the air outlet area to circulate therein being arranged in the adsorption tube (2); Two connecting pipes (21) are connected and fixedly connected to the adsorption pipe (2), one of the connecting pipes (21) is provided with a storage bucket, and the adsorption pipe (2) is provided with an opening and closing component for opening and closing the two connecting pipes (21).

2. The device for treating waste gas containing methylene chloride according to claim 1, characterized in that: The driving assembly comprises two first rotating shafts (10) rotatably connected to an air inlet area and an air outlet area in an adsorption tube (2); the outer walls of the first rotating shafts (10) are fixedly connected with spiral blades (11); the thread directions of the two spiral blades (11) are opposite; one end of the first rotating shafts (10) is fixedly connected with a first bevel gear (12); the bottom of the connecting tube (3) is fixedly connected with a first motor (13); the output shaft of the first motor (13) is fixedly connected with a second rotating shaft (14); the outer wall of the second rotating shaft (14) is fixedly connected with two second bevel gears (15); the second bevel gears (15) are respectively meshed with the corresponding first bevel gears (12).

3. The device for treating waste gas containing methylene chloride according to claim 2, characterized in that: The opening and closing assembly comprises an electric push rod (16) fixedly connected to the adsorption tube (2) via a bracket plate, the output end of the electric push rod (16) being fixedly connected to a first square plate (17), the first square plate (17) being fixedly connected to a U-shaped rod (18), the two ends of the U-shaped rod (18) being respectively fixedly connected to a first rack (19) and a second rack (20), the two connecting tubes (21) being rotatably connected to a third rotating shaft (22), one end of the third rotating shaft (22) being fixedly connected to a circular plate (23), the other ends of the two third rotating shafts (22) being respectively fixedly connected to a first gear (24) and a second gear (25), the second gear (20) being meshed with the second gear (25), the distance between the first gear (19) and the first gear (24) being the length of the second gear (20).

4. The device for treating waste gas containing methylene chloride according to claim 3, characterized in that: One end of the two third rotating shafts (22) is respectively fixedly connected to a first block (26) and a second block (27); the first rack (19) is fixedly connected to a first limit frame (28) via a fixing rod; the first limit frame (28) comprises a first limit section (2801) and a first rotating section (2802); the height of the first limit section (2801) is equal to the height of the first block (26); the height of the first rotating section (2802) is equal to the length of the diagonal of the first block (26); the second rack (20) is fixedly connected to a second limit frame (29) via a fixing rod; the second limit frame (29) comprises a second limit section (2902) and a second rotating section (2901); the height of the second limit section (2902) is equal to the height of the second block (27); the height of the second rotating section (2901) is equal to the length of the diagonal of the second block (27).

5. The device for treating waste gas containing methylene chloride according to claim 4, characterized in that: The first rotating shaft (10) and the spiral blade (11) are provided with a cooling assembly, the cooling assembly comprising a spiral cavity (33) opened in the spiral blade (11), the filtering tube (1) and the connecting tube (3) are respectively fixedly connected with a first vertical tube (30) and a second vertical tube (37), one end of each of the first vertical tube (30) and the second vertical tube (37) is fixedly connected with a hollow circular ring block (31), the two hollow circular ring blocks (31) are respectively rotatably connected to the two first rotating shafts (10), and the first rotating shafts (10) are respectively connected with the first rotating shafts (10). A U-shaped channel (32) is provided inside the first rotating shaft (10) and is connected to the hollow circular ring block (31). The U-shaped channel (32) is connected to the spiral cavity (33). An L-shaped channel (34) is provided inside the first rotating shaft (10) and is connected to the spiral cavity (33). One end of the L-shaped channel (34) is connected to a hollow rotating block (35) rotatably connected to one end of the first rotating shaft (10). The hollow rotating block (35) is fixedly connected to the adsorption tube (2). A U-shaped tube (36) is fixedly connected between the two hollow rotating blocks (35).

6. The device for treating waste gas containing methylene chloride according to claim 5, characterized in that: A closing plate (9) is arranged in the second opening (8), a rectangular groove (39) is provided in the adsorption tube (2), the closing plate (9) is slidably inserted in the rectangular groove (39), a connecting plate (38) slidably connected to the adsorption tube (2) is fixedly connected to the closing plate (9), a second square plate (40) is fixedly connected to the connecting plate (38), a telescopic rod (41) is rotatably connected to the second square plate (40), a rotating shaft (42) is rotatably connected to the adsorption tube (2), one end of the telescopic rod (41) is fixedly connected to the outer wall of the rotating shaft (42), a first connecting rod (43) is fixedly connected to the outer wall of the rotating shaft (42), one end of the first connecting rod (43) is rotatably connected to the third connecting rod (43), and one end of the first connecting rod (43) is rotatably connected to the third connecting rod (41). A square plate (44), a first spring (45) is fixedly connected between the third plate (44) and the second square plate (40), a limiting opening (46) is provided on the first connecting rod (43), a limiting column (47) is arranged in the limiting opening (46), a sliding plate (48) slidably connected to the adsorption tube (2) is fixedly connected to the limiting column (47), a guide rod (49) is fixedly connected to the adsorption tube (2), a rectangular plate (50) is slidably connected to the outer wall of the guide rod (49), an insert plate (51) is slidably arranged on the rectangular plate (50), the insert plate (51) is directly opposite to the U-shaped rod (18), and a second connecting rod (52) is hinged between the rectangular plate (50) and the sliding plate (48).

7. The device for treating waste gas containing methylene chloride according to claim 6, characterized in that: A slot (53) is provided in the rectangular plate (50), the insert plate (51) is slidably inserted in the slot (53), a second spring (54) is fixedly connected between the insert plate (51) and the slot (53), and an electromagnet (55) is fixedly connected to both the insert plate (51) and the slot (53).

8. The device for treating waste gas containing methylene chloride according to claim 7, characterized in that: A connecting rod (56) is fixedly connected to the U-shaped rod (18), one end of the connecting rod (56) is fixedly connected to a third rack (57), a fixing frame (58) is fixedly connected inside the filter tube (1), a fourth rotating shaft (59) is rotatably connected to the fixing frame (58), the stainless steel net (4) is fixedly connected to the bottom end of the fourth rotating shaft (59), and a third gear (60) meshing with the third rack (57) is fixedly connected to the top end of the fourth rotating shaft (59).

9. The device for treating waste gas containing methylene chloride according to claim 8, characterized in that: A plurality of fixed plates (61) are fixedly connected to the filter tube (1); a fifth rotating shaft (62) is rotatably connected between two of the fixed plates (61); a roller (63) is fixedly connected to the outer wall of the fifth rotating shaft (62); the non-woven fabric (5) is wound and fixedly connected to the outer walls of the two rollers (63); a second motor (64) is fixedly connected to one of the fixed plates (61); an output shaft of the second motor (64) is fixedly connected to one end of one of the fifth rotating shafts (62); a pulley (65) is fixedly connected to one end of the two fifth rotating shafts (62); and the two pulleys (65) are connected in transmission via a transmission belt (66).

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