Tail gas treatment process and tail gas treatment equipment for recycling waste halogenated organic solvent

Abstract

The invention relates to the technical field of tail gas treatment, in particular to a tail gas treatment process and tail gas treatment equipment for recycling a waste halogenated organic solvent. The tail gas treatment equipment comprises a longitudinally arranged tail gas filter box and a fan communicated with the tail gas filter box through an exhaust pipe, a plurality of activated carbon carriers of breathable structures are arranged in the tail gas filter box, and a plurality of layers of communicated hollow structures are arranged in the activated carbon carriers. According to the tail gas treatment process and tail gas treatment equipment for recycling the waste halogenated organic solvent, activated carbon particles are placed in a layered manner through a multi-layer structure, so that when the activated carbon particles at the bottom are saturated, the activated carbon particles at the bottom can be quickly transferred to other areas through the movement of a material pushing part, and the operation is convenient. The activated carbon particles on the upper layer can move to the bottom in a short time. On one hand, the active carbon particle transposition efficiency is improved, and on the other hand, the active carbon particles cannot be abraded or broken in a pushing mode.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment, in particular to a tail gas treatment process and tail gas treatment equipment for recovering waste halogenated organic solvents. Background Art

[0002] Waste halogenated organic solvents refer to waste organic solvents containing halogens (such as chlorine, fluorine, and bromine) generated during industrial production or use. Common types include trans-1,2-dichloroethylene, trichloroethylene, 1,1,2-trichloroethane, tetrachloroethylene, tetrachloroethane, and pentachloroethane. Because they cannot be degraded by native microorganisms, their release can cause serious environmental pollution, increase the burden on the ecological environment, and endanger human health. Therefore, the environmentally friendly disposal of waste halogenated organic solvents has long been a hot topic globally.

[0003] The recycling process of spent halogenated organic solvents produces waste gases, which must be absorbed and treated by an exhaust gas treatment device before they can be discharged. Currently, activated carbon is the primary method for treating this waste gas. However, the exhaust gas typically first contacts the bottom of the activated carbon. This results in the bottom portion of the activated carbon becoming saturated over time, while the upper and middle portions of the activated carbon remain saturated. This can lead to wasteful replacement of the activated carbon.

[0004] To this end, activated carbon particles are currently used to avoid this phenomenon. Specifically, when the activated carbon particles in the bottom layer are saturated, they are stirred to exchange positions between the activated carbon particles in the upper layer and the activated carbon particles in the bottom layer. However, this method still has the following problems: On the one hand, since the activated carbon particles are all in the same chamber, it takes a long time to stir the activated carbon particles in the middle and upper layers to move to the bottom layer, which affects the efficiency. On the other hand, the activated carbon particles are easily worn or broken during the stirring process, reducing the adsorption efficiency and service life. Summary of the Invention

[0005] The present invention aims to provide a tail gas treatment process and equipment for recovering waste halogenated organic solvents. By utilizing a multi-layered structure to store activated carbon granules, the process allows the granules to be adjusted simply by pushing them. This solves the problem outlined in the background art, namely that stirring activated carbon granules requires prolonged stirring, can lead to wear and breakage of the granules, and reduces adsorption efficiency and service life.

[0006] To achieve the above objectives, one of the objectives of the present invention is to provide an exhaust gas treatment device for recovering waste halogenated organic solvents, comprising a longitudinally arranged exhaust gas filter box and a fan connected to the exhaust gas filter box through an exhaust pipe, wherein the exhaust gas filter box is provided with a plurality of activated carbon carriers with a breathable structure, and the activated carbon carriers have a multi-layer interconnected hollow structure, and the interior of each layer of the hollow structure is used to store activated carbon particles; Each layer of the hollow structure is provided with a pusher, which pushes the activated carbon particles by moving, so that the activated carbon particles in the multi-layer hollow structure exchange positions through the connecting parts; It also includes a driving mechanism, which is configured to drive the pushing member to move.

[0007] In the above technical solution, the pusher pushes the activated carbon particles in front of it to the next layer, and the activated carbon particles at the bottom layer can be moved to other layers. Through this position exchange method, on the one hand, the efficiency is improved, and on the other hand, the breakage of activated carbon particles is reduced.

[0008] On this basis, a storage cavity is provided inside the activated carbon carrier, and a first partition is horizontally provided inside the storage cavity to separate the storage cavity into two layers, and the storage cavities of the two layers are connected; activated carbon particles are stored in the storage cavity of each layer.

[0009] Furthermore, the height of the pusher is consistent with the height of the corresponding storage chamber. A pull cord is also provided within the activated carbon carrier for connecting the multiple pushers in series, with one end of the pull cord connected to the drive mechanism. This pull cord can simultaneously drive the movement of multiple pushers, reducing the number of drive mechanisms.

[0010] On this basis, an air guide cavity is provided at one end inside the exhaust gas filter box; the driving mechanism includes a winding shaft rotatably arranged in the air guide cavity and a driving member for driving the winding shaft to rotate; wherein, one end of the pull rope slides into the air guide cavity and is wrapped around the outer ring of the winding shaft.

[0011] The driving member includes an impeller coaxially fixedly connected to the reel shaft; The two ends of the air guide cavity penetrate the activated carbon carrier and the side wall of the exhaust gas filter box, so that one end of the air guide cavity forms an outlet and the other end forms an inlet; the outlet is connected to the exhaust pipe through a pipeline; a valve is provided inside the exhaust pipe.

[0012] In this solution, because the pusher pushes the activated carbon granules completely, the resistance to pushing the activated carbon granules comes primarily from friction between the activated carbon granules and the outer wall of the storage chamber. Compared to stirring the activated carbon granules, this method requires less driving force, allowing the pusher to be driven by negative pressure.

[0013] In another technical solution, a second partition is provided above the first partition, and the first partition and the second partition divide the storage cavity into three layers; One end of the first partition close to the driving mechanism is bent upward to the top of the storage cavity, and a gap is left between the end of the second partition and the bent end of the first partition, so that an "S"-shaped communication state is formed between the three layers of storage cavities; The storage cavity corresponds to the area between the bent end of the first partition and the driving mechanism to form a waste cavity for collecting the activated carbon particles in the bottom layer.

[0014] This technical solution uses an additional waste chamber. When the activated carbon particles on the bottom layer are saturated, a pusher pushes them into the waste chamber. Activated carbon particles in other areas are then pushed to the bottom layer by corresponding pushers. This method avoids the problem of saturated activated carbon particles affecting gas flow efficiency.

[0015] A second object of the present invention is to provide a tail gas treatment process for a tail gas treatment device for recovering waste halogenated organic solvents, comprising the following steps: S1. The tail gas of the waste halogenated organic solvent enters the tail gas filter box, is adsorbed and filtered by the activated carbon particles inside the activated carbon carrier, and is discharged to high altitude through the exhaust pipe under the action of the fan; S2. When the activated carbon particles at the bottom of the activated carbon carrier are in a saturated state, the driving mechanism is started to drive the pushing member to move; S3. The pushing member moves to push the activated carbon particles in front of it into the storage cavity of the next layer, so that the activated carbon particles in the multi-layer storage cavity are exchanged.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This tail gas treatment process and equipment for recovering waste halogenated organic solvents utilizes a multi-layered structure to layer activated carbon particles. When the activated carbon particles at the bottom are saturated, the movement of a pusher quickly transfers them to other areas, allowing the upper layer of activated carbon particles to quickly reach the bottom. This improves the efficiency of activated carbon particle translocation and prevents wear or breakage of the particles due to the pusher mechanism.

[0017] 2. In the tail gas treatment process and tail gas treatment equipment for recycling waste halogenated organic solvents, through layering and pushing by the pusher, not only can the position of the activated carbon particles be exchanged, but also the advantage of the pusher pushing all the activated carbon particles can be used to guide the activated carbon particles at the bottom to the waste cavity, so that the saturated activated carbon particles can be stopped from being used, thereby not affecting the gas passage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the exhaust gas filter box of the present invention; Figure 3 It is a structural schematic diagram of the valve of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the activated carbon carrier of the present invention; Figure 5 It is a structural schematic diagram of the driving mechanism of the present invention; Figure 6 The working state of the pusher of the present invention is shown as follows Figure 1 ; Figure 7 Schematic diagram of the structure of the waste chamber of the present invention; Figure 8 The working state of the pusher of the present invention is shown as follows Figure 2 .

[0019] The meaning of each number in the figure is: 100. Exhaust filter box; 101. Exhaust duct; 102. Fan; 103. Exhaust pipe; 104. Socket; 105. Valve; 110. Activated carbon carrier; 111. Storage chamber; 112. Vent; 120. First partition; 121. Second partition; 122. Waste chamber; 130. Pusher; 131. Pull rope; 140. Drive mechanism; 141. Air guide chamber; 142. Outlet; 143. Inlet; 144. Pipeline; 145. Reel; 146. Impeller; 200. Activated carbon granules. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features being referred to. Thus, features specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0023] The method of stirring activated carbon particles 200 will result in the need for long-term stirring and the activated carbon particles 200 will be worn or broken, thereby reducing the adsorption efficiency and service life. One of the purposes of the present invention is to provide an exhaust gas treatment device for recycling waste halogenated organic solvents. Figure 1 As shown, the exhaust gas treatment equipment includes a longitudinally arranged exhaust gas filter box 100 and a fan 102 connected to the exhaust gas filter box 100. Specifically, fan 102 is located on one side of the exhaust gas filter box 100 and is connected to the top of the exhaust gas filter box 100 via an exhaust pipe 101 located at the air inlet end. The exhaust end of fan 102 is connected to an exhaust pipe 103, which increases the height of gas discharge. Upon activation, fan 102 generates negative pressure inside the exhaust gas filter box 100, causing the exhaust gas of the waste halogenated organic solvent to be drawn into the exhaust gas filter box 100 through the bottom end.

[0024] The exhaust gas filter box 100 is provided with a plurality of activated carbon carriers 110 along its height direction. Figure 2 As shown, the activated carbon carrier 110 is inserted into the exhaust filter box 100 through the socket 104 provided on the side wall of the exhaust filter box 100, and the activated carbon carrier 110 is a breathable structure. Figure 4 As shown, the activated carbon carrier 110 has a connected multi-layer hollow structure inside, and the interior of each layer of the hollow structure is used to store activated carbon particles 200; in addition, a pushing piece 130 is provided in each layer of the hollow structure, and the pushing piece 130 pushes the activated carbon particles 200 by moving, so that the activated carbon particles 200 in the multi-layer hollow structure can exchange positions through the connected parts.

[0025] The exhaust gas treatment device further includes a driving mechanism 140 , which is configured to drive the pushing member 130 to move.

[0026] The plurality of pushers 130 are connected in series, which avoids driving each pusher 130 individually.

[0027] In Example 1, specifically, the activated carbon carrier 110 is in the shape of a square box with a hollow interior. This design enables the interior of the activated carbon carrier 110 to form a storage cavity 111. Figure 4As shown, a first partition 120 is horizontally arranged inside the storage chamber 111 to divide the storage chamber 111 into two layers. Gaps are reserved between the two ends of the first partition 120 and the end of the storage chamber 111, so that the two layers of the storage chambers 111 are connected through the gap. In addition, activated carbon particles 200 are stored in each layer of the storage chamber 111.

[0028] Furthermore, the air permeability structure of the activated carbon carrier 110 is also Figure 4 Specifically, the air permeability structure of the activated carbon carrier 110 is achieved through the air vents 112. As shown in the figure, the first partition 120 and the upper and lower end surfaces of the storage chamber 111 are provided with a plurality of through air vents 112. The air vents 112 are smaller than the volume of the activated carbon particles 200 and are only used for gas to pass through. In this way, the exhaust gas enters the storage chamber 111 from the air vents 112 at the bottom of the activated carbon carrier 110, is adsorbed and filtered by the activated carbon particles 200 in the storage chamber 111, and is then discharged from the air vents 112 at the top of the activated carbon carrier 110.

[0029] The pusher 130 can be a cylindrical structure, or a flat plate or other structure. Here, taking the cylindrical structure as an example, Figure 4 As shown, the height d1 of the pusher 130 is consistent with the height d2 of the corresponding storage chamber 111. This structural design allows the pusher 130 to push all activated carbon particles 200 in front of the pusher 130 during movement. Furthermore, a pull rope 131 is provided within the activated carbon carrier 110 for connecting multiple pushers 130 in series, and one end of the pull rope 131 is connected to the drive mechanism 140.

[0030] The specific structure of the driving mechanism 140 is as follows Figure 5 As shown, an air guide chamber 141 is provided at one end of the exhaust filter box 100. The drive mechanism 140 includes a reel 145 rotatably disposed within the air guide chamber 141 and a drive element for driving the reel 145 to rotate. One end of the pull cord 131 slides through the air guide chamber 141 and winds around the outer ring of the reel 145. In this structural design, when the drive element drives the reel 145 to rotate, the reel 145 reels the pull cord 131, thereby pulling the multiple pushers 130 to move.

[0031] In some embodiments, the driving member may directly use a motor to drive the reel 145 .

[0032] In other embodiments, the driving member may also utilize the airflow in the exhaust pipe 101 to drive the reel 145. Figure 5As shown, in this embodiment, both ends of the air guide cavity 141 are first passed through the side wall of the activated carbon carrier 110, so that one end of the air guide cavity 141 forms an outlet 142 and the other end forms an inlet 143; then, an impeller 146 is coaxially fixedly connected to the outer ring of the winding shaft 145. Figure 2 As shown, the side wall of the exhaust gas filter box 100 is provided with a through hole connected to the outlet 142 and the inlet 143 at the position corresponding to the activated carbon carrier 110. When the activated carbon carrier 110 is placed inside the exhaust gas filter box 100, the outlet 142 and the inlet 143 can be connected to the through hole. Figure 1 As shown, the outlet 142 is connected to a pipe 144, one end of which is connected to the interior of the exhaust pipe 101, and referring to Figure 3 A valve 105 is provided inside the exhaust pipe 101.

[0033] In this way, when it is necessary to drive the winding shaft 145 to rotate, the motor controls the valve 105 to rotate and close the exhaust pipe 101 to increase the negative pressure inside the exhaust pipe 101, so that the exhaust pipe 101 draws the gas in the air guide chamber 141 through the pipe 144. When the gas in the air guide chamber 141 passes through the impeller 146, the flowing gas will push the impeller 146, thereby causing the impeller 146 to drive the winding shaft 145 to rotate.

[0034] Furthermore, this embodiment has the advantage that, because the pusher 130 pushes all of the activated carbon granules 200, the resistance to pushing the activated carbon granules 200 by the pusher 130 primarily comes from the friction between the activated carbon granules 200 and the outer wall of the storage chamber 111. Compared to stirring the activated carbon granules 200 (because during stirring, friction is generated between the stirring rod and the activated carbon granules 200, and friction is generated between the activated carbon granules 200, increasing the rotational resistance of the stirring rod), this method requires a lower driving torque, thereby utilizing negative pressure to drive the pusher 130.

[0035] The working principle of Example 1 is described in detail below: First, as Figure 6 As shown in the upper half of the figure, the two pushers 130 are labeled A and B. Under normal conditions, exhaust gas passes through the interior of the activated carbon carrier 110, where the activated carbon particles 200 within the activated carbon carrier 110 adsorb and filter the exhaust gas. In this state, the activated carbon particles 200 located near B are saturated early because they come into contact with the exhaust gas first.

[0036] Next, the control valve 105 closes the exhaust pipe 101, allowing the exhaust pipe 101 to suck the air flow in the air guide cavity 141, thereby driving the reel 145 to rotate through the impeller 146. The reel 145 rotates to reel in the pull rope 131. At this time, the pull rope 131 begins to pull B to move toward the driving mechanism 140.

[0037] Then, refer to Figure 6 In the lower half of the figure, when B moves to the driving mechanism 140, B will push the activated carbon particles 200 in front of itself into the upper storage chamber 111, and A will push the activated carbon particles 200 in front of itself into the lower storage chamber 111, thereby realizing the position change between the two layers of storage chambers 111.

[0038] In other words, by providing a multi-layer structure to arrange activated carbon particles 200 in layers, when the activated carbon particles 200 at the bottom are saturated, the movement of the pusher 130 can quickly transfer the activated carbon particles 200 at the bottom to other areas, allowing the activated carbon particles 200 in the upper layer to move to the bottom in a short period of time. On the one hand, the efficiency of the replacement of the activated carbon particles 200 is improved, and on the other hand, the pushing method does not wear or break the activated carbon particles 200.

[0039] In Example 2, since the activated carbon particles 200 will affect the exhaust gas circulation efficiency after being saturated, in order to stop using the activated carbon particles 200 in a saturated state, this embodiment is optimized based on Example 1. Figure 7 As shown: A second partition 121 is arranged above the first partition 120. The first partition 120 and the second partition 121 divide the storage chamber 111 into three layers. The heights of the three layers of storage chambers 111 are consistent, and one end of the first partition 120 close to the driving mechanism 140 is bent upward to the top of the storage chamber 111. A gap is left between the end of the second partition 121 and the bent end of the first partition 120, so that an "S"-shaped connection state is formed between the three layers of storage chambers 111; and the storage chamber 111 corresponds to the area between the bent end of the first partition 120 and the driving mechanism 140 to form a waste chamber 122 for collecting the bottom layer of activated carbon particles 200.

[0040] The working principle of this embodiment is as follows: First, refer to Figure 8 In the upper half of the figure, the two pushers 130 are labeled A, B, and C. The waste chamber 122 is normally idle, and the activated carbon granules 200 are primarily distributed within the three-layer storage chamber 111. When the activated carbon granules 200 at the bottom are saturated, the pull rope 131 is reeled in by the drive mechanism 140.

[0041] Then, refer to Figure 8In the lower half of the figure, A, B and C are all pulled by the pull rope 131, wherein C pushes the activated carbon particles 200 in front of itself into the waste chamber 122 during the pulling process, B pushes the activated carbon particles 200 in front of itself into the storage chamber 111 at the bottom layer, and A pushes the activated carbon particles 200 in front of itself into the storage chamber 111 in the middle layer.

[0042] It can be seen that through layering and the pushing method of the pusher 130, not only can the position of the activated carbon particles 200 be exchanged, but the advantage of the pusher 130 in pushing all the activated carbon particles 200 can also be utilized to guide the activated carbon particles 200 at the bottom to the waste chamber 122, so that the saturated activated carbon particles 200 can be stopped from being used, thereby not affecting the gas passage efficiency.

[0043] It should be noted that Figure 8 The area of ​​the activated carbon carrier 110 corresponding to the waste chamber 122 is not provided with the vent hole 112 , but those skilled in the art can flexibly adjust it according to actual conditions. For example, it is also feasible to provide the vent hole 112 in the area of ​​the waste chamber 122 .

[0044] The second object of the present invention is to provide a tail gas treatment process for recovering waste halogenated organic solvents, comprising the following steps: S1. The waste halogenated organic solvent tail gas enters the tail gas filter box 100, is adsorbed and filtered by the activated carbon particles 200 inside the activated carbon carrier 110, and is discharged to the sky through the exhaust pipe 103 under the action of the fan 102; S2. When the activated carbon particles 200 at the bottom of the activated carbon carrier 110 are in a saturated state, the driving mechanism 140 is started to drive the pushing member 130 to move; S3 , the pushing member 130 moves to push the activated carbon particles 200 in front of it into the storage cavity 111 of the next layer, so that the activated carbon particles 200 in the multiple layers of storage cavities 111 are exchanged in position.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device for recovering waste halogenated organic solvents, comprising a longitudinally arranged exhaust gas filter box (100) and a fan (102) connected to the exhaust gas filter box (100) through an exhaust pipe (101), wherein a plurality of activated carbon carriers (110) with a breathable structure are arranged inside the exhaust gas filter box (100), characterized in that: The activated carbon carrier (110) has a multi-layer interconnected hollow structure, and the interior of each layer of the hollow structure is used to store activated carbon particles (200); A pushing member (130) is provided in each layer of the hollow structure, and the pushing member (130) pushes the activated carbon particles (200) by moving, so that the activated carbon particles (200) in the multi-layer hollow structure exchange positions through the connecting parts; It also includes a driving mechanism (140), which is configured to drive the pushing member (130) to move.

2. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 1, characterized in that: The plurality of pushers (130) are connected in series.

3. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 1, characterized in that: A storage cavity (111) is provided inside the activated carbon carrier (110), and a first partition (120) is transversely provided inside the storage cavity (111) to separate the storage cavity (111) into two layers, and the two layers of storage cavities (111) are in a communicating state; Activated carbon particles (200) are stored in the storage cavity (111) of each layer.

4. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 3, characterized in that: The first partition (120) and the upper and lower end surfaces of the storage cavity (111) are both provided with a plurality of through-going vent holes (112).

5. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 3, characterized in that: The height of the pushing member (130) is consistent with the height of the storage cavity (111) of the corresponding layer; A pull rope (131) for connecting the plurality of pushers (130) in series is further provided inside the activated carbon carrier (110), and one end of the pull rope (131) is connected to the driving mechanism (140).

6. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 5, characterized in that: An air guide cavity (141) is provided at one end inside the exhaust gas filter box (100); The driving mechanism (140) includes a reel (145) rotatably disposed in the air guide cavity (141) and a driving member for driving the reel (145) to perform rotational motion; wherein one end of the pull rope (131) slides into the air guide cavity (141) and is wound around the outer ring of the reel (145).

7. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 6, characterized in that: The driving member includes a motor for driving the winding shaft (145) to rotate.

8. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 6, characterized in that: The driving member comprises an impeller (146) coaxially fixedly connected to the reel shaft (145); Both ends of the air guide cavity (141) penetrate the activated carbon carrier (110) and the side wall of the exhaust gas filter box (100), so that one end of the air guide cavity (141) forms an outlet (142) and the other end forms an inlet (143); the outlet (142) is connected to the exhaust pipe (101) through a pipe (144); A valve (105) is provided inside the exhaust pipe (101).

9. The tail gas treatment equipment for recycling waste halogenated organic solvents according to claim 3, characterized in that: A second partition (121) is provided above the first partition (120), and the first partition (120) and the second partition (121) divide the storage cavity (111) into three layers; One end of the first partition (120) close to the driving mechanism (140) is bent upward to the top of the storage cavity (111), and a gap is left between the end of the second partition (121) and the bent end of the first partition (120), so that an "S"-shaped communication state is formed between the three layers of storage cavities (111); The storage cavity (111) corresponds to an area between the bent end of the first partition (120) and the driving mechanism (140) to form a waste cavity (122) for collecting the bottom layer of activated carbon particles (200).

10. A tail gas treatment process for a tail gas treatment device for recovering a waste halogenated organic solvent according to any one of claims 3 to 9, characterized in that: The method comprises the following steps: S1. The waste halogenated organic solvent tail gas enters the tail gas filter box (100), is adsorbed and filtered by the activated carbon particles (200) inside the activated carbon carrier (110), and is then discharged to high altitude through the exhaust pipe (103) under the action of the fan (102); S2. When the activated carbon particles (200) at the bottom of the activated carbon carrier (110) are in a saturated state, the driving mechanism (140) is started, and the pushing member (130) is driven to move by the driving mechanism (140); S3. The pushing member (130) moves to push the activated carbon particles (200) in front of it into the storage cavity (111) of the next layer, so that the activated carbon particles (200) in the multi-layer storage cavity (111) exchange positions.

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