Waste gas purification equipment for resin synthesis

Abstract

The present invention relates to the technical field of waste gas treatment, and specifically to waste gas purification equipment for resin synthesis. It includes a gas collecting cylinder, a first tank body is fixed on the upper end of the gas collecting cylinder, a second tank body is fixed on the upper end of the first tank body, an exhaust pipe is fixedly connected to the upper end of the second tank body, an air intake pipe is fixed in the first tank body, the air intake pipe is connected to the gas collecting cylinder through a first connecting pipe, a driving assembly is slidably and sealedly connected in the gas collecting cylinder, a transmission assembly is arranged in the first tank body, the transmission assembly is connected to the driving assembly, a slot is provided at the upper end of the air intake pipe in the first tank body, a baffle is slidably and sealedly inserted in the slot, the baffle blocks the air intake pipe, and the transmission assembly is connected to the baffle. The present invention can make the waste gas intermittently enter the first tank body and the second tank body, and can improve the removal effect of harmful substances and particulate matter in the waste gas.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to waste gas purification equipment for resin synthesis. Background Art

[0002] When the synthetic resin is cooled, crystallized and solidified on the cooling conveyor belt, some formaldehyde and acid free volatile gases will escape. These gases will seriously affect the health of operators when they are released into the workshop environment. The current treatment method is to set up an exhaust gas collection hood above the cooling conveyor belt, and then guide the harmful exhaust gas in the collection hood into the outdoor atmosphere through pipes and induced draft fans. Although this improves the indoor working environment, it causes greater pollution to the outdoor atmospheric environment.

[0003] The patent document with application number CN201820230020.1 discloses a device for eliminating waste gas in the production process of polyester resin. During waste gas treatment, the vacuum pump draws waste gas from the resin synthesizer into the waste gas transport pipe, and the waste gas is transported to the inside of the waste gas absorption tower along the waste gas transport pipe. After the activated carbon adsorption layer filters the waste gas, the absorption liquid in the absorption liquid placement box flows out through the absorption liquid spray head to absorb the toxic gas in the waste gas. After absorption, the gas is discharged after secondary filtration by the top activated carbon adsorption layer. During the waste gas treatment process, the waste gas is continuously transported to the waste gas absorption tower, and the absorption liquid flows out from the spray head to absorb the harmful substances in the waste gas. At the same time, the absorption liquid can make the particulate matter in the waste gas mix with the absorption liquid and then go down under the action of gravity. However, since the waste gas is constantly ascending in the absorption tower, the waste gas is in the absorption tower for a short time, and some of the waste gas will be directly discharged outside the absorption tower without sufficient contact with the absorption liquid, which will affect the removal effect of harmful substances and particulate matter in the waste gas. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a waste gas purification device for resin synthesis which can improve the removal effect of harmful substances and particulate matter in the waste gas.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] Waste gas purification equipment for resin synthesis includes a gas collecting cylinder, a first tank body is fixed on the upper end of the gas collecting cylinder, a discharge pipe is fixedly connected to the lower end of the first tank body, a second tank body is fixed on the upper end of the first tank body, an exhaust pipe is fixedly connected to the upper end of the second tank body, an intake pipe is fixed in the first tank body, one end of the intake pipe extends to the outside of the first tank body, one end of the intake pipe in the first tank body is blocked, the intake pipe is connected to the gas collecting cylinder through a first connecting pipe, a driving component is slidably and sealedly connected in the gas collecting cylinder, a transmission component is arranged in the first tank body, and the transmission component is connected to the driving component. The first tank body is connected with a dynamic component, a slot is provided at the upper end of the air intake pipe in the first tank body, a baffle is inserted in the slot for sliding sealing, the baffle blocks the air intake pipe, the transmission component is connected to the baffle, an annular groove is provided in the top plate of the first tank body, an inner hole is provided on the top plate of the first tank body, the inner hole is connected with the second tank body, a filler layer is fixed in the inner hole, a plurality of through holes are provided on the top plate of the first tank body, the through holes are connected with the annular groove and the inner hole, one end of the air intake pipe in the first tank body is connected with the annular groove through the second connecting pipe, and a spray component is arranged in the second tank body.

[0007] Specifically, the driving assembly includes a piston plate connected in a sliding and sealing manner in the gas collecting cylinder, a connecting shaft is fixed to the lower end of the piston plate, the connecting shaft passes through a fixed frame fixed in the gas collecting cylinder, the connecting shaft is slidably connected to the fixed frame, and a first spring is sleeved on the connecting shaft between the piston plate and the fixed frame.

[0008] Specifically, the transmission assembly includes a ring slidably sleeved on the outside of the first connecting pipe, first vertical rods are fixed on both sides of the ring, the air intake pipe is located between the two first vertical rods, a light rod is concentrically fixed to the lower end of the first vertical rod, the light rod passes through the top plate of the gas collecting cylinder, the light rod is slidingly and sealingly connected to the top plate of the gas collecting cylinder, the lower end of the light rod is fixedly connected to the piston plate, a vertical groove is opened on the first vertical rod, a first slider is slidably clamped in the vertical groove, second vertical rods are fixed on both sides of the baffle, the air intake pipe is located between the two second vertical rods, a vertical groove is opened on the second vertical rod, a second slider is slidably clamped in the vertical groove, the first slider and the second slider on the same side are movably connected by an elastic telescopic rod, the elastic telescopic rod is rotatably connected to the air intake pipe, and the elastic telescopic rod is tilted.

[0009] Specifically, the elastic telescopic rod includes a sleeve, which is rotatably connected to a fixed shaft, which is fixedly connected to the air intake pipe, and both ends of the sleeve are slidably connected to sliding rods, the sliding rod at one end of the sleeve is rotatably connected to the first slider, and the sliding rod at the other end of the sleeve is rotatably connected to the second slider, a second spring is installed in the sleeve, and both ends of the second spring are respectively fixedly connected to the two sliding rods.

[0010] Specifically, the spray assembly includes a mounting frame fixed in the second tank body, and a spray frame is fixed at the lower end of the mounting frame.

[0011] Specifically, a porous plate is fixed in the second tank body above the mounting frame, a grille plate is slidably arranged in the second tank body above the porous plate, a blocking block concentric with the openings on the porous plate is fixed at the lower end of the grille plate, and after the grille plate drives the blocking block downward, the blocking block can seal the openings on the porous plate, a vertical rod is slidably arranged on the porous plate, the vertical rod penetrates the porous plate, the lower end of the vertical rod penetrates the packing layer, and the lower end of the vertical rod is fixedly connected to the upper end of the second vertical rod.

[0012] Specifically, a first magnet is fixed on the air intake pipe below the baffle, the first magnet magnetically attracts the lower end of the baffle, a fixed plate is fixed on the upper end of the air intake pipe, a second magnet is fixed on the fixed plate part above the baffle, and the second magnet can magnetically attract the upper end of the baffle after the baffle moves upward.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention can allow the exhaust gas to intermittently enter the first tank body and the second tank body, thereby improving the removal effect of harmful substances and particulate matter in the exhaust gas.

[0015] 2. After the exhaust gas enters the first tank body and the second tank body, when the baffle moves downward to block the air inlet pipe, the grille plate moves downward and the block blocks the openings on the porous plate, and the exhaust gas can be intercepted in the first tank body and the second tank body. The absorption liquid continues to be sprayed from the spray rack to treat the exhaust gas intercepted in the first tank body and the second tank body, which can increase the treatment time of the exhaust gas and improve the treatment effect of the exhaust gas.

[0016] 3. During the downward movement of the piston plate, the baffle plate and the grille plate move upward with a delay, and the openings on the air intake pipe and the porous plate are opened with a delay, which can ensure the temporary storage time of the exhaust gas in the first tank body and the second tank body, and can increase the treatment time of the exhaust gas by the absorption liquid, thereby improving the treatment effect of the exhaust gas.

[0017] 4. When the piston plate moves upward, the baffle plate and the grille plate move downward with a delay, and the openings on the air inlet pipe and the porous plate are closed with a delay, which can ensure that the waste gas treated by the absorption liquid can be discharged in time, and at the same time can ensure the amount of waste gas entering the first tank body and the second tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 It is a cross-sectional view of the first tank body and the second tank body.

[0020] Figure 3 A schematic diagram of the transmission assembly.

[0021] Figure 4 Schematic diagram of the annular groove on the top plate of the first tank body.

[0022] Figure 5 It is a schematic diagram of the cooperation between the fixing bracket and the connecting shaft.

[0023] Figure 6 This is a schematic diagram of the baffle blocking the intake pipe.

[0024] Figure 7 It is a schematic diagram of the air intake pipe being connected with the second connecting pipe after the baffle is moved upward.

[0025] The names of the parts in the accompanying drawings are: 1. first tank body; 2. air intake pipe; 3. first connecting pipe; 4. air collecting cylinder; 5. piston plate; 6. connecting shaft; 7. fixing frame; 8. first spring; 9. bare rod; 10. first vertical rod; 11. first slider; 12. sliding rod; 13. sleeve; 14. second spring; 15. fixing shaft; 16. second slider; 17. second vertical rod; 18. baffle; 19. first magnet; 20. fixing plate; 21. second magnet; 22. second connecting pipe; 23. annular groove; 24. through hole; 25. packing layer; 26. mounting frame; 27. spray frame; 28. vertical rod; 29. ​​grille plate; 30. blocking block; 31. porous plate; 32. second tank body; 33. exhaust pipe; 34. collar. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] like Figure 1-Figure 7 As shown, the waste gas purification equipment for resin synthesis includes a gas collecting cylinder 4, a first tank body 1 is fixed on the upper end of the gas collecting cylinder 4, and a discharge pipe is fixedly connected to the lower end of the first tank body 1. A second tank body 32 is fixed on the upper end of the first tank body 1, and an exhaust pipe 33 is fixedly connected to the upper end of the second tank body 32.

[0028] An air intake pipe 2 is fixed in the first tank body 1, one end of the air intake pipe 2 extends to the outside of the first tank body 1, one end of the air intake pipe 2 in the first tank body 1 is blocked, and the air intake pipe 2 is connected to the gas collecting cylinder 4 through the first connecting pipe 3. A driving assembly is slidably and sealably connected in the gas collecting cylinder 4, and a transmission assembly is arranged in the first tank body 1, and the transmission assembly is connected to the driving assembly.

[0029] An annular groove 23 is provided in the top plate of the first tank body 1, an inner hole is provided in the top plate of the first tank body 1, the inner hole is communicated with the second tank body 32, and a packing layer 25 is fixed in the inner hole. A plurality of through holes 24 are provided in the top plate of the first tank body 1, and the plurality of through holes 24 are evenly distributed according to the circumference of the axis of the first tank body 1, the through holes 24 communicate with the annular groove 23 and the inner hole, and one end of the air intake pipe 2 in the first tank body 1 is communicated with the annular groove 23 through the second connecting pipe 22.

[0030] A slot is provided at the upper end of the air inlet pipe 2 in the first tank body 1 , and a baffle 18 is inserted in the slot in a sliding and sealing manner. The baffle 18 blocks the air inlet pipe 2 , and the transmission assembly is connected to the baffle 18 .

[0031] A first magnet 19 is fixed on the intake pipe 2 below the baffle 18, and the first magnet 19 magnetically attracts the lower end of the baffle 18. A fixing plate 20 is fixed on the upper end of the intake pipe 2, and a second magnet 21 is fixed to the fixing plate 20 above the baffle 18. After the baffle 18 moves upward, the second magnet 21 can magnetically attract the upper end of the baffle 18.

[0032] The driving assembly includes a piston plate 5 which is slidably and sealably connected to the gas collecting cylinder 4. A connecting shaft 6 is fixed to the lower end of the piston plate 5. The connecting shaft 6 passes through a fixing frame 7 fixed in the gas collecting cylinder 4, and the connecting shaft 6 is slidably connected to the fixing frame 7. A first spring 8 is sleeved on the connecting shaft 6 between the piston plate 5 and the fixing frame 7.

[0033] The transmission assembly includes a collar 34 slidably sleeved on the outside of the first connecting pipe 3, first vertical rods 10 are fixed on both sides of the collar 34, and the air intake pipe 2 is located between the two first vertical rods 10. A polished rod 9 is concentrically fixed to the lower end of each of the first vertical rods 10, and the polished rod 9 penetrates the top plate of the gas collecting cylinder 4, and the polished rod 9 is slidably and sealedly connected to the top plate of the gas collecting cylinder 4, and the lower end of the polished rod 9 is fixedly connected to the piston plate 5.

[0034] The first vertical rods 10 are provided with vertical grooves, and the first sliders 11 are slidably engaged in the vertical grooves. Second vertical rods 17 are fixed on both sides of the baffle 18, and the air inlet pipe 2 is located between the two second vertical rods 17. The second vertical rods 17 are provided with vertical grooves, and the second sliders 16 are slidably engaged in the vertical grooves. The first slider 11 and the second slider 16 located on the same side are movably connected by an elastic telescopic rod. The elastic telescopic rod is rotatably connected to the air inlet pipe 2, and the elastic telescopic rod is tilted.

[0035] Specifically, the elastic telescopic rod includes a sleeve 13, and a fixed shaft 15 is rotatably connected to the sleeve 13, and the fixed shaft 15 is fixedly connected to the air intake pipe 2. Both ends of the sleeve 13 are slidably connected with slide bars 12, the slide bar 12 at one end of the sleeve 13 is rotatably connected to the first slider 11, and the slide bar 12 at the other end of the sleeve 13 is rotatably connected to the second slider 16, and a second spring 14 is installed in the sleeve 13, and both ends of the second spring 14 are fixedly connected to the two slide bars 12 respectively.

[0036] A spray assembly is arranged in the second tank body 32. The spray assembly comprises a mounting frame 26 fixed in the second tank body 32, and a spray frame 27 is fixed at the lower end of the mounting frame 26.

[0037] A porous plate 31 is fixed in the second tank body 32 above the mounting frame 26, a grille plate 29 is slidably arranged in the second tank body 32 above the porous plate 31, a blocking block 30 which is concentric with the openings on the porous plate 31 is fixed at the lower end of the grille plate 29, and after the grille plate 29 drives the blocking block 30 downward, the blocking block 30 can block the openings on the porous plate 31, a vertical rod 28 is slidably arranged on the porous plate 31, the vertical rod 28 penetrates the porous plate 31, the lower end of the vertical rod 28 penetrates the packing layer 25, and the lower end of the vertical rod 28 is fixedly connected to the upper end of the second vertical rod 17.

[0038] When the waste gas is treated, the waste gas enters the intake pipe 2 through an external air pump. Figure 6 As shown, in the initial state, the baffle 18 closes the intake pipe 2, and the exhaust gas cannot enter the second connecting pipe 22, while the two ends of the first connecting pipe 3 are connected to the intake pipe 2 and the gas collecting cylinder 4 respectively, so the exhaust gas enters the gas collecting cylinder 4 through the first connecting pipe 3. The exhaust gas enters the gas collecting cylinder 4 and pushes the piston plate 5 downward, and the piston plate 5 drives the connecting shaft 6 to slide downward in the gas collecting cylinder 4 and compresses the first spring 8, and the exhaust gas is stored in the gas collecting cylinder 4.

[0039] During the downward movement of the piston plate 5, the piston plate 5 drives the polished rod 9 to move downward, and the polished rod 9 drives the first vertical rod 10 and the collar 34 to move downward. When the first vertical rod 10 moves downward, it drives the first slider 11 located at the top of the vertical groove to move downward, and the first slider 11 drives the slide bar 12 rotatably connected thereto to move downward, thereby causing the sleeve 13 to rotate around the fixed shaft 15. When the sleeve 13 rotates, the slide bar 12 on one side of the second slider 16 drives the second slider 16 to move upward in the vertical groove of the second vertical rod 17. When the sleeve 13 rotates, the slide bar 12 approaches the fixed shaft 15 and the second spring 14 is compressed.

[0040] In the initial state, the lower end of the baffle 18 is magnetically attracted by the first magnet 19 , and the baffle 18 is temporarily immobile when the second sliding block 16 moves upward in the vertical groove of the second vertical rod 17 .

[0041] As the sleeve 13 rotates, when the height of the first slider 11 is lower than the height of the second slider 16, under the thrust of the second spring 14, the second spring 14 pushes the second slider 16 upward in the vertical groove of the second vertical rod 17 through the slide bar 12 on one side of the second slider 16. The second spring 14 pushes the first slider 11 downward in the vertical groove of the first vertical rod 10 through the slide bar 12 on one side of the first slider 11. When the second slider 16 reaches the top of the vertical groove, the second slider 16 drives the second vertical rod 17 and the baffle 18 upward. After the baffle 18 moves upward, the intake pipe 2 is connected to the second connecting pipe 22, and the second magnet 21 magnetically attracts the upper end of the baffle 18. The exhaust gas enters the second tank body 32 and the first tank body 1 through the intake pipe 2, the second connecting pipe 22, the annular groove 23, the through hole 24 and the inner hole. The exhaust gas can be dispersed after passing through multiple through holes 24.

[0042] After the absorption liquid is sprayed out from the spray rack 27, it processes the waste gas in the first tank body 1 and the second tank body 32. The waste gas goes up in the packing layer 25, and the absorption liquid goes down in the packing layer 25. The packing layer 25 can increase the contact area between the waste gas and the absorption liquid. After the absorption liquid falls into the lower end of the first tank body 1, the drain pipe can be opened to discharge.

[0043] When the second vertical rod 17 moves upward, it can drive the grid plate 29 and the blocking block 30 upward through the vertical rod 28. After the blocking block 30 moves upward, the porous plate 31 opens, and the waste gas treated by the absorption liquid can be discharged from the exhaust pipe 33.

[0044] After the baffle 18 is opened, the intake pipe 2 is connected to the second connecting pipe 22 , and under the thrust of the first spring 8 , the piston plate 5 moves upward and pushes the exhaust gas stored in the gas collecting cylinder 4 into the intake pipe 2 .

[0045] During the upward movement of the piston plate 5, the light rod 9 drives the first vertical rod 10 upward. When the first slider 11 contacts the bottom of the vertical groove of the first vertical rod 10, the first vertical rod 10 can drive the sleeve 13 to rotate through the first slider 11 and the sliding rod 12 on one side of the first slider 11 when it moves upward. When the sleeve 13 rotates, the sliding rod 12 on one side of the second slider 16 can drive the second slider 16 to move downward in the vertical groove of the second vertical rod 17.

[0046] As the sleeve 13 rotates, when the height of the second slider 16 is lower than that of the first slider 11, under the thrust of the second spring 14, the second spring 14 pushes the second slider 16 downward in the vertical groove of the second vertical rod 17 through the slide bar 12 on one side of the second slider 16. The second spring 14 pushes the first slider 11 upward in the vertical groove of the first vertical rod 10 through the slide bar 12 on one side of the first slider 11. When the second slider 16 reaches the bottom of the vertical groove, the second slider 16 drives the second vertical rod 17 and the baffle 18 upward. After the baffle 18 moves downward, the intake pipe 2 and the second connecting pipe 22 are no longer connected, and the first magnet 19 magnetically attracts the lower end of the baffle 18. The exhaust gas enters the gas collecting cylinder 4 again through the intake pipe 2 and the first connecting pipe 3.

[0047] During the downward movement of the second vertical rod 17 , the vertical rod 28 drives the grid plate 29 downward. When the baffle 18 is restored, the blocking blocks 30 on the grid plate 29 block the openings on the porous plate 31 again.

[0048] During the downward movement of the piston plate 5, the baffle plate 18 and the grille plate 29 move upward with a delay, and the openings on the air intake pipe 2 and the porous plate 31 are opened with a delay, which can ensure the temporary storage time of the exhaust gas in the first tank body 1 and the second tank body 32, and can increase the treatment time of the exhaust gas by the absorption liquid, thereby improving the treatment effect of the exhaust gas.

[0049] When the piston plate 5 moves upward, the baffle 18 and the grille plate 29 move downward with a delay, and the openings on the air inlet pipe 2 and the porous plate 31 are closed with a delay, which can ensure that the waste gas treated with the absorption liquid can be discharged in time, and at the same time can ensure the amount of waste gas entering the first tank body 1 and the second tank body 32.

[0050] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste gas purification device for resin synthesis, comprising a gas collecting cylinder (4), a first tank body (1) being fixed at the upper end of the gas collecting cylinder (4), a second tank body (32) being fixed at the upper end of the first tank body (1), and an exhaust pipe (33) being fixedly connected to the upper end of the second tank body (32), characterized in that: An air intake pipe (2) is fixed in the first tank body (1), one end of the air intake pipe (2) extends to the outside of the first tank body (1), one end of the air intake pipe (2) in the first tank body (1) is blocked, the air intake pipe (2) is connected to the air collecting cylinder (4) through a first connecting pipe (3), a driving assembly is slidably and sealably connected in the air collecting cylinder (4), a transmission assembly is arranged in the first tank body (1), the transmission assembly is connected to the driving assembly, a slot is provided at the upper end of the air intake pipe (2) in the first tank body (1), a baffle (18) is slidably and sealably inserted in the slot, the baffle (18) blocks the air intake pipe (2), the transmission assembly is connected to the baffle (18), a ring groove (23) is provided in the top plate of the first tank body (1), an inner hole is provided on the top plate of the first tank body (1), and the inner hole is connected to the second tank body ( 32), a packing layer (25) is fixed in the inner hole, a plurality of through holes (24) are opened on the top plate of the first tank body (1), the through holes (24) are connected to the annular groove (23) and the inner hole, one end of the air intake pipe (2) in the first tank body (1) is connected to the annular groove (23) through the second connecting pipe (22), and a spray assembly is arranged in the second tank body (32); the driving assembly comprises a piston plate (5) connected to the gas collecting cylinder (4) in a sliding sealing manner, a connecting shaft (6) is fixed at the lower end of the piston plate (5), the connecting shaft (6) passes through a fixing frame (7) fixed in the gas collecting cylinder (4), the connecting shaft (6) is slidably connected to the fixing frame (7), and a first spring (8) is sleeved on the connecting shaft (6) between the piston plate (5) and the fixing frame (7); the transmission assembly The invention comprises a sleeve (34) slidably sleeved on the outside of the first connecting pipe (3), first vertical rods (10) are fixed on both sides of the sleeve (34), the air intake pipe (2) is located between the two first vertical rods (10), a light rod (9) is concentrically fixed on the lower end of the first vertical rod (10), the light rod (9) passes through the top plate of the air collecting cylinder (4), the light rod (9) is slidably sealed and connected to the top plate of the air collecting cylinder (4), the lower end of the light rod (9) is fixedly connected to the piston plate (5), a vertical groove is provided on the first vertical rod (10), a first sliding block (11) is slidably clamped in the vertical groove, a second vertical rod (17) is fixed on both sides of the baffle (18), the air intake pipe (2) is located between the two second vertical rods (17), a vertical groove is provided on the second vertical rod (17), a second sliding block (11) is slidably clamped in the vertical groove The first slider (11) and the second slider (16) on the same side are movably connected through an elastic telescopic rod, the elastic telescopic rod is rotatably connected to the air inlet pipe (2), and the elastic telescopic rod is tilted; the elastic telescopic rod comprises a sleeve (13), a fixed shaft (15) is rotatably connected to the sleeve (13), the fixed shaft (15) is fixedly connected to the air inlet pipe (2), both ends of the sleeve (13) are slidably connected to slide bars (12), the slide bar (12) at one end of the sleeve (13) is rotatably connected to the first slider (11), and the slide bar (12) at the other end of the sleeve (13) is rotatably connected to the second slider (16), a second spring (14) is installed in the sleeve (13), and both ends of the second spring (14) are respectively fixedly connected to the two slide bars (12);The spray assembly comprises a mounting frame (26) fixed in the second tank body (32), and a spray frame (27) is fixed at the lower end of the mounting frame (26); a porous plate (31) is fixed in the second tank body (32) above the mounting frame (26), a grille plate (29) is slidably arranged in the second tank body (32) above the porous plate (31), a blocking block (30) concentric with the openings on the porous plate (31) is fixed at the lower end of the grille plate (29), and after the grille plate (29) drives the blocking block (30) downward, the blocking block (30) can block the openings on the porous plate (31), and a vertical rod (28) is slidably arranged on the porous plate (31), the vertical rod (28) penetrates the porous plate (31), the lower end of the vertical rod (28) penetrates the packing layer (25), and the lower end of the vertical rod (28) is fixedly connected to the upper end of the second vertical rod (17). ; 2. The waste gas purification equipment for resin synthesis according to claim 1, characterized in that: A first magnet (19) is fixed on the air intake pipe (2) below the baffle (18), and the first magnet (19) magnetically attracts the lower end of the baffle (18). A fixing plate (20) is fixed on the upper end of the air intake pipe (2), and a second magnet (21) is fixed on the fixing plate (20) above the baffle (18). After the baffle (18) moves upward, the second magnet (21) can magnetically attract the upper end of the baffle (18).

3. The waste gas purification equipment for resin synthesis according to claim 1, characterized in that: The lower end of the first tank body (1) is fixedly connected to a discharge pipe.

4. The waste gas purification equipment for resin synthesis according to claim 1, characterized in that: The plurality of through holes (24) are evenly distributed around the circumference of the axis of the first tank body (1).

Images