Multi-stage combined treatment system and treatment method for VOCs (Volatile Organic Compounds) waste gas

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a VOCs waste gas multi-stage combined treatment system and a treatment method.The VOCs waste gas multi-stage combined treatment system comprises an adsorption box, an adsorption unit is arranged in the adsorption box and comprises activated carbon, an outer frame is installed on the outer side of the activated carbon, and a plurality of sliding grooves are formed in the two sides of the inner wall of the adsorption box; a guide pipe is hermetically connected to the top of the adsorption box, a heating box is mounted at the other end of the guide pipe, a combustion box is mounted at the bottom of one side of the heating box, an air outlet pipe is mounted at one end of the combustion box, and an absorption pipe is hermetically mounted at one end of the air outlet pipe. By arranging the adsorption box, the heating box, the combustion box, the absorption pipe and other structures, gas is absorbed by activated carbon and then is heated by the heating box, ignition is facilitated, incomplete combustion caused by incomplete ignition of the gas is prevented, meanwhile, products obtained after combustion are purified again through the absorption pipe, and standard treatment of waste gas is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment, and in particular, relates to a VOCs waste gas multi-stage combined treatment system and a treatment method. Background Art

[0002] VOCs is the abbreviation of Volatile Organic Compounds. VOCs include non-methane hydrocarbons (alkanes, alkenes, alkynes, aromatic hydrocarbons, etc.), oxygen-containing organics (aldehydes, ketones, alcohols, ethers, etc.), chlorine-containing organics, nitrogen-containing organics, sulfur-containing organics, etc., and are important precursors to the formation of ozone (O3) and fine particulate matter (PM2.5) pollution. More than 300 types of volatile organic compounds have been identified, the more common ones are: benzene, toluene, xylene, styrene, trichloroethylene, trichloromethane, trichloroethane, diisocyanate (TDI), diisocyanatotoluene, etc.

[0003] Currently, the most commonly used method for VOCs treatment is to rely on activated carbon for adsorption. However, the adsorption capacity of activated carbon will gradually decrease with the increase of usage time, resulting in incomplete adsorption. Activated carbon itself cannot completely treat VOCs gas to meet the standards. Therefore, it is used together with the combustion method to effectively improve the treatment intensity. The combustion method requires ignition at the pipe mouth when using it. When the exhaust gas temperature is low, the exhaust gas is not easy to ignite, which may cause partial overflow of the exhaust gas and result in poor treatment effect.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a multi-stage combined treatment system and method for VOCs waste gas. By setting structures such as an adsorption box, a heating box, a combustion box and an absorption tube, the gas is absorbed by activated carbon and then heated by the heating box to facilitate ignition, thereby preventing the gas from being completely ignited and causing unclean combustion. At the same time, the combustion products are purified again through the absorption tube to achieve standard treatment of the waste gas.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A multi-stage combined treatment system for VOCs waste gas, comprising an adsorption box, an adsorption unit is arranged inside the adsorption box, the adsorption unit comprises activated carbon, an outer frame is installed on the outer side of the activated carbon, a plurality of slide grooves are opened on both sides of the inner wall of the adsorption box, and the activated carbon and the outer frame are slidably connected with the inner wall of the adsorption box through the slide grooves;

[0008] The top of the adsorption box is sealed with a conduit, the other end of the conduit is installed with a heating box, and the bottom of one side of the heating box is installed with a combustion box. After the heating box heats the gas, it is quickly burned through the combustion box. One end of the combustion box is installed with an outlet pipe, and one end of the outlet pipe is sealed with an absorption pipe. The interior of the absorption pipe is filled with absorption liquid, and the highest point of the absorption pipe is lower than the highest point of the outlet pipe.

[0009] As a preferred embodiment of the present invention, a metal tube is installed inside the heating box, one end of the metal tube is sealed and connected to the conduit, a heating coil is wrapped around the outside of the metal tube, the other end of the metal tube passes through the heating box and extends to the inside of the combustion box, and a nozzle is installed on one end of the metal tube located at the combustion box.

[0010] As a preferred embodiment of the present invention, a combustion-supporting gas pipeline is installed at one end of the metal tube close to the nozzle, a combustion-supporting gas source is installed at the other end of the combustion-supporting gas pipeline, a flame spray head is installed at the bottom of the combustion box, a gas pipeline is installed at the bottom of the flame spray head, and a gas tank is installed at one end of the gas pipeline.

[0011] As a preferred embodiment of the present invention, a coil is wound around the outside of the combustion box, and both ends of the coil are connected to a heat exchanger, and the heat exchanger absorbs the heat generated by the combustion box through the coil.

[0012] As a preferred embodiment of the present invention, the bottom of the adsorption box is fixedly and sealedly connected with an air inlet pipe, a first fan is installed on the air inlet pipe, and a second fan is installed on the air outlet pipe.

[0013] As a preferred embodiment of the present invention, a side panel is provided on one side of the adsorption box, sliding rods are fixedly installed at the four corners of the side panel, one end of the sliding rod is movably plugged into one side of the adsorption box, and an observation window is opened on one side of the side panel, and the observation window is used to observe the situation inside the adsorption box.

[0014] As a preferred embodiment of the present invention, a limiting groove is opened on one side of the side panel, a support frame is slidably connected in the limiting groove, second card slots are opened at both ends of the support frame, a first card slot is opened on one side of the outer frame, and the first card slot is adapted to the second card slot.

[0015] As a preferred embodiment of the present invention, a splint is rotatably connected to the middle of the support frame, and the splint is adapted to the outer frame. A transmission rod is movably inserted into one end of the splint, and the cross-sectional shape of the transmission rod is a rounded square. Both ends of the transmission rod are rotatably connected to the upper and lower ends of the side panels respectively, and the bottom of the transmission rod passes through the side panel and extends to the outside, and a rocker is fixedly installed at one end of the transmission rod located on the outside of the side panel.

[0016] As a preferred embodiment of the present invention, two screw rods are threadedly connected to the support frame, and the upper and lower ends of the screw rods are rotatably connected to the upper and lower ends of the side plates respectively. The bottom of the screw rod movably penetrates the side plate and extends to the outside. The two screw rods are located at one end of the outer side of the side plate and are fixedly installed with sprockets. A chain is meshed and connected between the two sprockets, and a turntable is fixedly installed at the bottom of one of the sprockets.

[0017] The present invention also discloses a multi-stage combined treatment method for VOCs waste gas, and the steps of the multi-stage combined treatment method for VOCs waste gas are as follows:

[0018] S1. When working, the first fan transports the exhaust gas into the adsorption box through the air inlet pipe, and the exhaust gas is adsorbed by the multi-layer activated carbon in the adsorption box. Most of the harmful components have been removed from the exhaust gas after adsorption, and the exhaust gas enters the metal pipe through the conduit;

[0019] S2. The metal tube is heated by the heating coil, so that the internal gas is heated. When it is about to overflow the metal tube, the combustion-supporting gas source supplies oxygen through the combustion-supporting gas pipeline, so that the exhaust gas is mixed with oxygen. When the mixed gas is ejected from the jet head, it is burned by the flame head, so that the harmful components in the exhaust gas are removed. The removed gas enters the absorption tube through the second fan and is purified again under the washing action of the absorption tube;

[0020] S3. As the treatment process proceeds, the adsorption capacity of the activated carbon gradually decreases. In order to ensure the treatment effect of the exhaust gas, the activated carbon needs to be replaced. The turntable is rotated, and the turntable drives the sprocket connected to it to rotate. The sprocket drives another sprocket to rotate through the chain, thereby rotating the two screw rods. The screw rod drives the support frame to move up and down through the cooperation with the support frame. The position of the support frame is observed through the observation window so that it can stop at the position of the activated carbon that needs to be replaced;

[0021] S4. Turn the rocker, which drives the transmission rod to rotate, thereby rotating the clamping plate, clamping the outer frame and activated carbon, pulling the side plate, and the side plate drives the support frame to move, and drives the activated carbon and the outer frame to move through the first slot and the second slot, and turning the turntable again to lower the support frame, thereby realizing the replacement of the activated carbon. After the replacement is completed, repeat the above operation in reverse to realize the installation operation of the activated carbon.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides structures such as an adsorption box, a heating box, a combustion box, and an absorption tube, so that the gas is absorbed by the activated carbon and then heated by the heating box for easy ignition, thereby preventing the gas from being completely ignited and causing unclean combustion. At the same time, the combustion product is purified again by the absorption tube, thereby achieving standard treatment of the waste gas.

[0024] The present invention provides a detachable side plate for the adsorption box so that the activated carbon can be moved out when the adsorption box is opened, thereby facilitating the replacement of the activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a multi-stage combined treatment system for VOCs waste gas according to the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the heating box of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the combustion box of the present invention;

[0028] Figure 4 This is a schematic diagram of the bottom structure of the adsorption box of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the side panel of the present invention in an open state;

[0030] Figure 6 This is a schematic diagram of the internal structure of the adsorption box of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the side plate of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the clamping plate of the present invention.

[0033] In the figure: 1. air inlet pipe; 2. first fan; 3. adsorption box; 4. conduit; 5. heating box; 6. combustion box; 7. air outlet pipe; 8. second fan; 9. absorption tube; 10. metal tube; 11. heating coil; 12. nozzle; 13. combustion-supporting gas source; 14. combustion-supporting gas pipeline; 15. gas tank; 16. gas pipeline; 17. flame head; 18. coil; 19. heat exchanger; 20. slide; 21. activated carbon; 22. outer frame; 23. first slot; 24. side plate; 25. slide rod; 26. limit slot; 27. support frame; 28. second slot; 29. ​​splint; 30. transmission rod; 31. rocker; 32. screw rod; 33. sprocket; 34. chain; 35. turntable; 36. observation window. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0035] Embodiment 1:

[0036] like Figures 1 to 8As shown, a VOCs waste gas multi-stage combined treatment system includes an adsorption box 3, an adsorption unit is arranged inside the adsorption box 3, the adsorption unit includes activated carbon 21, an outer frame 22 is installed on the outer side of the activated carbon 21, and a plurality of slide grooves 20 are opened on both sides of the inner wall of the adsorption box 3, and the activated carbon 21 and the outer frame 22 are slidably connected with the inner wall of the adsorption box 3 through the slide grooves 20;

[0037] A conduit 4 is sealably connected to the top of the adsorption box 3, a heating box 5 is installed at the other end of the conduit 4, a combustion box 6 is installed at the bottom of one side of the heating box 5, and after the heating box 5 heats the gas, it is quickly burned through the combustion box 6, an outlet pipe 7 is installed at one end of the combustion box 6, an absorption tube 9 is sealably installed at one end of the outlet pipe 7, the interior of the absorption tube 9 is filled with absorption liquid, and the highest point of the absorption tube 9 is lower than the highest point of the outlet pipe 7.

[0038] like Figure 2 As shown, in a specific embodiment, a metal tube 10 is installed inside the heating box 5, one end of the metal tube 10 is sealed and connected to the conduit 4, a heating coil 11 is wound around the outside of the metal tube 10, the other end of the metal tube 10 passes through the heating box 5 and extends to the inside of the combustion box 6, and a nozzle 12 is installed at one end of the metal tube 10 located in the combustion box 6. In this setting, the heating box 5 is made of heat-insulating material, and the metal tube 10 is heated by the heating coil 11, so that the internal gas is heated to facilitate ignition.

[0039] like Figure 1-Figure 3 As shown, further, a combustion-supporting gas pipeline 14 is installed at one end of the metal tube 10 near the nozzle 12, a combustion-supporting gas source 13 is installed at the other end of the combustion-supporting gas pipeline 14, a flame head 17 is installed at the bottom of the combustion box 6, a gas pipeline 16 is installed at the bottom of the flame head 17, and a gas tank 15 is installed at one end of the gas pipeline 16. In this arrangement, when the metal tube 10 is about to overflow, the combustion-supporting gas source 13 supplies oxygen through the combustion-supporting gas pipeline 14, so that the exhaust gas is mixed with oxygen, and when the mixed gas is ejected from the nozzle 12, it is burned through the flame head 17, so that harmful components in the exhaust gas are removed.

[0040] Embodiment 2:

[0041] like Figure 2 As shown, in a specific embodiment, a coil 18 is wound around the outside of the combustion box 6, and both ends of the coil 18 are connected to a heat exchanger 19, and the heat exchanger 19 absorbs the heat generated by the combustion box 6 through the coil 18. In this configuration, the heat exchanger 19 can effectively utilize the heat generated by the combustion box 6.

[0042] like Figure 1 , Figure 2As shown, further, the bottom of the adsorption box 3 is fixedly and sealedly connected with an air inlet pipe 1, a first fan 2 is installed on the air inlet pipe 1, and a second fan 8 is installed on the air outlet pipe 7. In this configuration, the first fan 2 transports the exhaust gas into the adsorption box 3 through the air inlet pipe 1, and the removed gas enters the absorption pipe 9 through the second fan 8.

[0043] like Figure 4 , Figure 5 As shown, further, a side plate 24 is provided on one side of the adsorption box 3, and sliding rods 25 are fixedly installed at the four corners of the side plate 24, one end of the sliding rod 25 is movably plugged into one side of the adsorption box 3, and an observation window 36 is provided on one side of the side plate 24, and the observation window 36 is used to observe the situation in the adsorption box 3. In this setting, the sliding of the side plate 24 enables the adsorption box 24 to be opened.

[0044] Embodiment 3:

[0045] like Figure 5 , Figure 7 As shown, in a specific embodiment, a limiting groove 26 is provided on one side of the side plate 24, a support frame 27 is slidably connected in the limiting groove 26, a second slot 28 is provided at both ends of the support frame 27, a first slot 23 is provided on one side of the outer frame 22, and the first slot 23 is adapted to the second slot 28. In this configuration, when the side plate 24 is pulled, the side plate 24 drives the support frame 27 to move, and drives the activated carbon 21 and the outer frame 22 to move through the first slot 23 and the second slot 28.

[0046] like Figure 4 , Figure 7 , Figure 8 As shown, further, a clamping plate 29 is rotatably connected to the middle of the support frame 27, and the clamping plate 29 is adapted to the outer frame 22. A transmission rod 30 is movably inserted at one end of the clamping plate 29. The cross-sectional shape of the transmission rod 30 is a rounded square. The two ends of the transmission rod 30 are rotatably connected to the upper and lower ends of the side plate 24, respectively. The bottom of the transmission rod 30 passes through the side plate 24 and extends to the outside, and a rocker 31 is fixedly installed at one end of the transmission rod 30 located on the outside of the side plate 24. In this setting, the rocker 31 is rotated, and the rocker 31 drives the transmission rod 30 to rotate, thereby rotating the clamping plate 29, and the clamping plate 29 clamps the outer frame 22 and the activated carbon 21.

[0047] like Figure 4 , Figure 7As shown, further, two screw rods 32 are threadedly connected to the support frame 27, and the upper and lower ends of the screw rods 32 are respectively rotatably connected to the upper and lower ends of the side plate 24, and the bottom of the screw rods 32 movably penetrates the side plate 24 and extends to the outside. A sprocket 33 is fixedly installed at one end of the two screw rods 32 located on the outside of the side plate 24, and a chain 34 is meshed and connected between the two sprocket wheels 33, and a rotating disk 35 is fixedly installed at the bottom of one of the sprocket wheels 33. In this setting, the rotating disk 35 is rotated, and the rotating disk 35 drives the sprocket wheel 33 connected thereto to rotate, and the sprocket wheel 33 drives the other sprocket wheel 33 to rotate through the chain 34, thereby rotating the two screw rods 32, and the screw rods 32 drive the support frame 27 to move up and down through the cooperation with the support frame 27.

[0048] The implementation principle of a VOCs waste gas multi-stage combined treatment system of this embodiment is as follows: when working, the first fan 2 transports the waste gas into the adsorption box 3 through the air inlet pipe 1, and the waste gas is adsorbed by the multi-layer activated carbon 21 in the adsorption box 3. The waste gas after adsorption has removed most of the harmful components and enters the metal pipe 10 through the conduit 4. The metal pipe 10 is heated by the heating coil 11, so that the internal gas is heated. When it is about to overflow the metal pipe 10, the combustion-supporting gas source 13 supplies oxygen through the combustion-supporting gas pipeline 14, so that the waste gas is mixed with oxygen. When the mixed gas is ejected from the nozzle 12, it is burned by the flame head 17, so that the harmful components in the waste gas are removed. The removed gas enters the absorption pipe 9 through the second fan 8, and is purified again under the washing action of the absorption pipe 9;

[0049] As the treatment process proceeds, the adsorption capacity of the activated carbon 21 gradually decreases. In order to ensure the treatment effect of the exhaust gas, the activated carbon 21 needs to be replaced. The turntable 35 is rotated, and the turntable 35 drives the sprocket 33 connected to it to rotate. The sprocket 33 drives another sprocket 33 to rotate through the chain 34, thereby rotating the two screw rods 32. The screw rod 32 drives the support frame 27 to move up and down through the cooperation with the support frame 27. The position of the support frame 27 is observed through the observation window 36 so that it can stop at the activated carbon that needs to be replaced. 21, turn the rocker 31, the rocker 31 drives the transmission rod 30 to rotate, thereby rotating the clamp 29, the clamp 29 clamps the outer frame 22 and the activated carbon 21, pulls the side plate 24, the side plate 24 drives the support frame 27 to move, and drives the activated carbon 21 and the outer frame 22 to move through the first slot 23 and the second slot 28, and turns the turntable 35 again to lower the support frame 27, thereby realizing the replacement of the activated carbon 21. After the replacement is completed, repeat the above operation in reverse to realize the installation operation of the activated carbon 21.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A multi-stage combined treatment system for VOCs waste gas, comprising an adsorption box (3), It is characterized in that An adsorption unit is arranged inside the adsorption box (3), and the adsorption unit comprises activated carbon (21). An outer frame (22) is installed on the outer side of the activated carbon (21). A plurality of slide grooves (20) are provided on both sides of the inner wall of the adsorption box (3). The activated carbon (21) and the outer frame (22) are slidably connected to the inner wall of the adsorption box (3) via the slide grooves (20); The top of the adsorption box (3) is sealedly connected to a conduit (4), the other end of the conduit (4) is installed with a heating box (5), and the bottom of one side of the heating box (5) is installed with a combustion box (6). After the heating box (5) heats the gas, it is quickly burned through the combustion box (6). An outlet pipe (7) is installed at one end of the combustion box (6), and an absorption pipe (9) is sealedly installed at one end of the outlet pipe (7). The absorption liquid is filled inside the absorption pipe (9), and the highest point of the absorption pipe (9) is lower than the highest point of the outlet pipe (7).

2. A VOCs waste gas multi-stage combined treatment system according to claim 1, It is characterized in that A metal tube (10) is installed inside the heating box (5), one end of the metal tube (10) is sealed and connected to the conduit (4), a heating coil (11) is wound around the outside of the metal tube (10), the other end of the metal tube (10) passes through the heating box (5) and extends to the inside of the combustion box (6), and a nozzle (12) is installed at one end of the metal tube (10) located at the combustion box (6).

3. A VOCs waste gas multi-stage combined treatment system according to claim 2, It is characterized in that A combustion-supporting gas pipeline (14) is installed at one end of the metal tube (10) close to the nozzle (12), and a combustion-supporting gas source (13) is installed at the other end of the combustion-supporting gas pipeline (14). A flame spray head (17) is installed at the bottom of the combustion box (6), and a gas pipeline (16) is installed at the bottom of the flame spray head (17), and a gas tank (15) is installed at one end of the gas pipeline (16).

4. A VOCs waste gas multi-stage combined treatment system according to claim 3, It is characterized in that A coil (18) is wound around the outside of the combustion box (6), and both ends of the coil (18) are connected to a heat exchanger (19). The heat exchanger (19) absorbs the heat generated by the combustion box (6) through the coil (18).

5. A VOCs waste gas multi-stage combined treatment system according to claim 1, It is characterized in that The bottom of the adsorption box (3) is fixedly and sealedly connected to an air inlet pipe (1), a first fan (2) is installed on the air inlet pipe (1), and a second fan (8) is installed on the air outlet pipe (7).

6. A VOCs waste gas multi-stage combined treatment system according to claim 1, It is characterized in that A side plate (24) is provided on one side of the adsorption box (3), and sliding rods (25) are fixedly installed at the four corners of the side plate (24). One end of the sliding rod (25) is movably plugged into one side of the adsorption box (3). An observation window (36) is provided on one side of the side plate (24), and the observation window (36) is used to observe the situation inside the adsorption box (3).

7. A VOCs waste gas multi-stage combined treatment system according to claim 6, It is characterized in that A limiting groove (26) is provided on one side of the side plate (24), a support frame (27) is slidably connected in the limiting groove (26), second clamping grooves (28) are provided at both ends of the support frame (27), a first clamping groove (23) is provided on one side of the outer frame (22), and the first clamping groove (23) is matched with the second clamping groove (28).

8. A VOCs waste gas multi-stage combined treatment system according to claim 7, It is characterized in that A clamping plate (29) is rotatably connected to the middle of the support frame (27), and the clamping plate (29) is adapted to the outer frame (22). A transmission rod (30) is movably inserted at one end of the clamping plate (29), and the cross-sectional shape of the transmission rod (30) is a rounded square. The two ends of the transmission rod (30) are rotatably connected to the upper and lower ends of the side plate (24), respectively. The bottom of the transmission rod (30) passes through the side plate (24) and extends to the outside, and a rocker (31) is fixedly installed at one end of the transmission rod (30) located on the outside of the side plate (24).

9. A VOCs waste gas multi-stage combined treatment system according to claim 1, It is characterized in that The support frame (27) is threadedly connected with two screw rods (32), the upper and lower ends of the screw rods (32) are rotatably connected to the upper and lower ends of the side plate (24), the bottom of the screw rods (32) movably penetrates the side plate (24) and extends to the outside, the two screw rods (32) are located on the outside of the side plate (24) and one end is fixedly installed with a sprocket (33), the two sprockets (33) are meshedly connected with a chain (34), and a rotating disk (35) is fixedly installed at the bottom of one of the sprockets (33).

10. A multi-stage combined treatment method for VOCs waste gas according to claim 1, It is characterized in that The steps of the multi-stage combined treatment method for VOCs waste gas are as follows: S1. When working, the first fan (2) conveys the exhaust gas into the adsorption box (3) through the air inlet pipe (1), and the exhaust gas is adsorbed by the multi-layer activated carbon (21) in the adsorption box (3). Most of the harmful components of the exhaust gas after adsorption have been removed, and the exhaust gas enters the metal pipe (10) through the conduit (4); S2, the metal tube (10) is heated by the heating coil (11), so that the temperature of the gas inside is increased. When the gas is about to overflow from the metal tube (10), the combustion-supporting gas source (13) supplies oxygen through the combustion-supporting gas pipeline (14), so that the exhaust gas is mixed with oxygen. When the mixed gas is ejected from the ejector head (12), it is burned by the flame head (17), so that harmful components in the exhaust gas are removed. The removed gas enters the absorption tube (9) through the second fan (8), and is purified again under the washing action of the absorption tube (9); S3. As the treatment process proceeds, the adsorption capacity of the activated carbon (21) gradually decreases. In order to ensure the treatment effect on the exhaust gas, the activated carbon (21) needs to be replaced. The turntable (35) is rotated, and the turntable (35) drives the sprocket (33) connected thereto to rotate. The sprocket (33) drives another sprocket (33) to rotate through the chain (34), thereby rotating the two screw rods (32). The screw rod (32) drives the support frame (27) to move up and down through the cooperation with the support frame (27). The position of the support frame (27) is observed through the observation window (36) so that it can stop at the position of the activated carbon (21) that needs to be replaced; S4, the rocker (31) is rotated, the rocker (31) drives the transmission rod (30) to rotate, thereby rotating the clamping plate (29), the clamping plate (29) clamps the outer frame (22) and the activated carbon (21), pulls the side plate (24), the side plate (24) drives the support frame (27) to move, and drives the activated carbon (21) and the outer frame (22) to move through the first clamping groove (23) and the second clamping groove (28), and the turntable (35) is rotated again to make the support frame (27) descend, thereby realizing the replacement of the activated carbon (21), after the replacement is completed, the above operation is repeated in reverse, and the installation operation of the activated carbon (21) can be realized.

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