A process and equipment for treating tail gas from the recovery of waste halogenated organic solvents.

Abstract

This invention relates to the field of exhaust gas treatment technology, specifically to an exhaust gas treatment process and equipment for the recovery of waste halogenated organic solvents. The exhaust gas treatment equipment includes a longitudinally arranged exhaust gas filter box and a fan connected to the filter box via an exhaust pipe. The exhaust gas filter box contains multiple activated carbon carriers with a permeable structure, each carrier having a multi-layered hollow structure. In this exhaust gas treatment process and equipment for the recovery of waste halogenated organic solvents, the multi-layered structure allows for the layering of activated carbon particles. When the bottom layer of activated carbon particles becomes saturated, the movement of a pusher quickly transfers these particles to other areas, enabling the upper-layer particles to reach the bottom in a short time. This improves the efficiency of activated carbon particle relocation and prevents the particles from being worn or broken by the pushing method.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas treatment technology, and more specifically, to an exhaust gas treatment process and equipment for the recovery of waste halogenated organic solvents. Background Technology

[0002] Waste halogenated organic solvents refer to waste organic solvents containing halogens (such as chlorine, fluorine, bromine, etc.) 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 emissions cause serious environmental pollution, increase the ecological burden, and endanger human health. Therefore, the environmentally friendly treatment of waste halogenated organic solvents has always been a global hot topic.

[0003] Waste halogenated organic solvents generate waste gas during recycling and processing. This waste gas needs to be absorbed and treated by a tail gas treatment device before it can be discharged. Currently, activated carbon is mainly used for tail gas treatment of waste halogenated organic solvents. However, the tail gas usually comes into contact with the bottom of the activated carbon first. This means that after a period of time, the bottom of the activated carbon will reach saturation first, while the middle and upper parts of the activated carbon will not reach saturation. Replacing the activated carbon at this time can easily lead to waste.

[0004] Therefore, activated carbon granules are currently used to avoid the above phenomenon. Specifically, after the bottom layer of activated carbon granules is saturated, the granules are stirred to exchange positions between the middle and upper layers and the bottom layer. However, this method still has the following problems:

[0005] On the one hand, since the activated carbon particles are all in one chamber, it takes a long time to stir them to move the activated carbon particles in the middle and upper layers to the bottom layer, thus affecting efficiency. On the other hand, activated carbon particles are prone to wear or breakage during stirring, reducing adsorption efficiency and service life. Summary of the Invention

[0006] The purpose of this invention is to provide a tail gas treatment process and equipment for the recovery of waste halogenated organic solvents. This process utilizes a multi-layer structure to store activated carbon particles, allowing adjustment of the activated carbon particle position simply by moving the particles. This solves the problems mentioned in the background art, namely, the need for prolonged stirring and the resulting wear or breakage of the activated carbon particles, leading to reduced adsorption efficiency and lifespan.

[0007] To achieve the above objectives, one objective of this invention is to provide a tail gas treatment device for the recovery of waste halogenated organic solvents, including a longitudinally arranged tail gas filter box and a fan connected to the tail gas filter box via an exhaust pipe. The tail gas filter box is provided with multiple activated carbon carriers with a breathable structure inside. The activated carbon carriers have interconnected multi-layer hollow structures inside, and the interior of each hollow structure is used to store activated carbon particles.

[0008] Each hollow structure is equipped with a pusher, which moves to push the activated carbon particles, allowing the activated carbon particles in the multi-layer hollow structure to exchange positions through the connecting parts.

[0009] It also includes a drive mechanism configured to drive the pusher component to move.

[0010] In the above technical solution, the pusher pushes the activated carbon particles in front of it to the next layer, while the activated carbon particles at the bottom layer can move to other layers. Through this position exchange, efficiency is improved on the one hand, and the breakage of activated carbon particles is reduced on the other hand.

[0011] Based on this, the activated carbon carrier is provided with a storage chamber inside, and the storage chamber is provided with a first partition that divides the storage chamber into two layers horizontally inside, and the two layers of storage chambers are connected; each layer of storage chamber contains activated carbon particles.

[0012] Based on this, the height of the pusher is consistent with the height of the corresponding storage chamber; the activated carbon carrier is also equipped with a pull rope for connecting multiple pushers in series, and one end of the pull rope is connected to the drive mechanism. The pull rope can drive multiple pushers to move simultaneously, reducing the number of drive mechanisms.

[0013] Based on this, an air guide cavity is provided at one end of the exhaust gas filter box; the drive mechanism includes a take-up shaft rotatably disposed in the air guide cavity and a drive component for driving the take-up shaft to rotate; wherein, one end of the pull rope slides into the air guide cavity and is wound around the outer ring of the take-up shaft.

[0014] The driving component includes an impeller that is fixedly connected coaxially to the winding shaft;

[0015] The air guide cavity extends through both ends of the activated carbon carrier and the side wall of the exhaust gas filter box, forming an outlet at one end and an inlet at the other. The outlet is connected to the exhaust pipe via a pipeline. A valve is installed inside the exhaust pipe.

[0016] In this design, because the pusher completely propels the activated carbon particles, the resistance to pushing the particles mainly comes from the friction between the activated carbon particles and the outer wall of the storage chamber. Compared to stirring activated carbon particles, this method requires less driving force, thus enabling the pusher to be driven by negative pressure.

[0017] In another technical solution, a second partition is provided above the first partition, and the first and second partitions divide the storage chamber into three layers;

[0018] The first partition is bent upwards at the end near the drive mechanism to the top of the storage chamber, and a gap is left between the end of the second partition and the bent end of the first partition so that the three storage chambers form an "S"-shaped connection.

[0019] The storage chamber forms a waste chamber for collecting bottom activated carbon particles in the area between the bent end of the first partition and the drive mechanism.

[0020] This technical solution utilizes an additional waste chamber. Once the bottom layer of activated carbon particles is saturated, a pusher pushes the particles into the waste chamber, while activated carbon particles from other areas are pushed back to the bottom by their corresponding pushers. This method avoids the problem of saturated activated carbon particles affecting gas flow efficiency.

[0021] The second objective of this invention is to provide a tail gas treatment process for a waste halogenated organic solvent recovery tail gas treatment device, comprising the following method steps:

[0022] S1. Waste halogenated organic solvent tail gas enters the tail gas filter box, and after being adsorbed and filtered by the activated carbon particles inside the activated carbon carrier, it is discharged to the high altitude through the exhaust pipe under the action of the fan.

[0023] S2. When the activated carbon particles at the bottom of the activated carbon carrier are saturated, the drive mechanism is activated to drive the pusher to move.

[0024] S3. The pusher moves to push the activated carbon particles in front of it into the storage chamber of the next layer, causing the activated carbon particles in the multi-layer storage chamber to exchange positions.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. In the tail gas treatment process and equipment for the recovery of waste halogenated organic solvents, activated carbon particles are placed in layers using a multi-layer structure. When the activated carbon particles at the bottom are saturated, the movement of the pusher allows the bottom activated carbon particles to be quickly transferred to other areas, enabling the upper activated carbon particles to move to the bottom in a short time. This improves the efficiency of activated carbon particle relocation and prevents the activated carbon particles from being worn or broken by the pushing method.

[0027] 2. In the tail gas treatment process and equipment for the recovery of waste halogenated organic solvents, the layering and pushing mechanism not only allows for the exchange of activated carbon particle positions, but also leverages the advantage of the pushing mechanism to guide all activated carbon particles to the waste chamber, thus stopping the use of saturated activated carbon particles and ensuring that the gas passage efficiency is not affected. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the exhaust gas filter box of the present invention;

[0030] Figure 3 This is a schematic diagram of the valve structure of the present invention;

[0031] Figure 4 This is a schematic cross-sectional view of the activated carbon carrier of the present invention;

[0032] Figure 5 This is a schematic diagram of the drive mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the working state of the pusher component of the present invention. Figure 1 ;

[0034] Figure 7 This is a schematic diagram of the waste chamber structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the working state of the pusher component of the present invention. Figure 2 .

[0036] The meanings of the labels in the diagram are as follows:

[0037] 100. Exhaust gas filter box; 101. Exhaust duct; 102. Fan; 103. Exhaust stack; 104. Inlet; 105. Valve; 110. Activated carbon carrier; 111. Storage chamber; 112. Vent hole; 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. Winding shaft; 146. Impeller; 200. Activated carbon granules. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] The use of stirred activated carbon granules 200 leads to prolonged stirring time and wear or breakage of the granules, reducing adsorption efficiency and lifespan. One objective of this invention is to provide a tail gas treatment device for the recovery of waste halogenated organic solvents. For example... Figure 1As 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, the fan 102 is located on one side of the exhaust gas filter box 100. The fan 102 is connected to the top of the exhaust gas filter box 100 through an exhaust pipe 101 at its inlet end, and the exhaust end of the fan 102 is connected to an exhaust stack 103, which can increase the height of gas emission. Thus, after the fan 102 is started, it will create a negative pressure inside the exhaust gas filter box 100, thereby causing the exhaust gas of the waste halogenated organic solvent to be drawn into the exhaust gas filter box 100 through its bottom end.

[0042] Multiple activated carbon carriers 110 are arranged inside the exhaust gas filter box 100 along its height direction, such as... Figure 2 As shown, the activated carbon carrier 110 is inserted into the exhaust gas filter box 100 through the inlet 104 provided on the side wall of the exhaust gas filter box 100, and the activated carbon carrier 110 has a breathable structure. Then, combined with Figure 4 As shown, the activated carbon carrier 110 has a multi-layered hollow structure with interconnected layers. Each layer of the hollow structure is used to store activated carbon particles 200. In addition, each layer of the hollow structure is provided with a pusher 130. The pusher 130 moves to push the activated carbon particles 200, so that the activated carbon particles 200 in the multi-layered hollow structure can exchange positions through the interconnected parts.

[0043] The exhaust gas treatment equipment also includes a drive mechanism 140, which is configured to drive the pusher 130 to move.

[0044] The multiple pusher components 130 are connected in series, which avoids driving each pusher component 130 individually.

[0045] In Example 1, specifically, the activated carbon carrier 110 is a hollow square box shape, a design that allows a storage cavity 111 to be formed inside the activated carbon carrier 110. For example... Figure 4 As shown, the storage chamber 111 is laterally provided with a first partition 120 that divides the storage chamber 111 into two layers. A gap is reserved between the two ends of the first partition 120 and the ends of the storage chamber 111 so that the two layers of storage chamber 111 can be connected through the gap. In addition, each layer of storage chamber 111 contains activated carbon particles 200.

[0046] Furthermore, the air-permeable structure of the activated carbon carrier 110 is also... Figure 4The diagram is described below. Specifically, the permeable structure of the activated carbon carrier 110 is achieved through vents 112. As shown in the figure, multiple through vents 112 are provided on both the upper and lower end faces of the first partition 120 and the storage chamber 111. The vents 112 are smaller than the volume of the activated carbon particles 200 and are only used for gas passage. In this way, the exhaust gas enters the storage chamber 111 from the 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 vents 112 at the top of the activated carbon carrier 110.

[0047] The pusher component 130 can be a cylindrical structure, a flat plate, or another type of structure. Here, we take a 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 the activated carbon particles 200 in front of its moving path during movement. Furthermore, the activated carbon carrier 110 is also equipped with a pull rope 131 for connecting multiple pushers 130 in series, and one end of the pull rope 131 is connected to the drive mechanism 140.

[0048] The specific structure of the drive mechanism 140 is described in detail below. Figure 5 As shown in the figure, an air guide cavity 141 is provided at one end of the exhaust gas filter box 100; the drive mechanism 140 includes a winding shaft 145 rotatably disposed in the air guide cavity 141 and a drive component for driving the winding shaft 145 to rotate; wherein, one end of the pull rope 131 slides into the air guide cavity 141 and is wound around the outer ring of the winding shaft 145. In this structural design, after the drive component drives the winding shaft 145 to rotate, the winding shaft 145 will wind up the pull rope 131, thereby pulling multiple pusher components 130 to move.

[0049] In some embodiments, the drive unit can be a motor that directly drives the take-up shaft 145.

[0050] In other embodiments, the drive unit may also utilize airflow within the exhaust duct 101 to drive the take-up shaft 145. For example... Figure 5 As shown, in this embodiment, the two ends of the air guide cavity 141 first penetrate the sidewalls 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. Next, as... Figure 2 As shown, the side wall of the exhaust gas filter box 100, corresponding to the activated carbon carrier 110, has openings communicating with the outlet 142 and the inlet 143. When the activated carbon carrier 110 is placed inside the exhaust gas filter box 100, the outlet 142 and the inlet 143 can communicate with the openings. Next, refer to... Figure 1As shown, the outlet 142 is connected to a pipe 144, one end of which is connected to the interior of the exhaust pipe 101. Furthermore, referring to... Figure 3 A valve 105 is installed inside the exhaust pipe 101.

[0051] Thus, when it is necessary to drive the take-up shaft 145 to rotate, the motor controls the valve 105 to rotate and close the exhaust pipe 101, thereby increasing the negative pressure inside the exhaust pipe 101. This causes the exhaust pipe 101 to draw in the gas from 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 take-up shaft 145 to rotate.

[0052] Furthermore, the advantage of this embodiment is that, since the pusher 130 pushes all the activated carbon particles 200, the resistance to the pusher 130 pushing the activated carbon particles 200 mainly comes from the friction between the activated carbon particles 200 and the outer wall of the storage chamber 111. Compared to stirring the activated carbon particles 200 (because during stirring, friction is generated between the stirring rod and the activated carbon particles 200, and friction is generated between the activated carbon particles 200 themselves, which increases the rotational resistance of the stirring rod), this method requires a lower driving torque, thereby achieving the use of negative pressure to drive the pusher 130.

[0053] The working principle of Example 1 will be described in detail below:

[0054] Firstly, as Figure 6 As shown in the upper part of the diagram, the two pusher components 130 are labeled A and B. Under normal conditions, the exhaust gas passes through the interior of the activated carbon carrier 110, where the activated carbon particles 200 adsorb and filter the exhaust gas. In this state, the activated carbon particles 200 located near B will become saturated prematurely because they come into contact with the exhaust gas first.

[0055] Next, the control valve 105 closes the exhaust pipe 101, causing the exhaust pipe 101 to draw in the airflow in the air guide cavity 141, so as to drive the take-up shaft 145 to rotate through the impeller 146. The rotation of the take-up shaft 145 winds up the pull rope 131, at which time the pull rope 131 begins to pull B to move towards the drive mechanism 140.

[0056] Then, refer to Figure 6 In the lower half of the structure, when B moves to the drive mechanism 140, B will push the activated carbon particles 200 in front of it into the upper storage chamber 111, while A will push the activated carbon particles 200 in front of it into the lower storage chamber 111, thereby realizing the change in position between the two storage chambers 111.

[0057] In other words, by using a multi-layered structure to place the activated carbon particles 200 in layers, when the bottom layer of activated carbon particles 200 becomes saturated, the moving pusher 130 can quickly transfer the bottom activated carbon particles 200 to other areas, allowing the upper activated carbon particles 200 to move to the bottom in a short time. On the one hand, this improves the efficiency of activated carbon particle relocation; on the other hand, the pushing method does not cause wear or breakage of the activated carbon particles 200.

[0058] Example 2: Since saturated activated carbon particles 200 can affect the flow efficiency of exhaust gas, this example is optimized based on Example 1 to stop the use of saturated activated carbon particles 200. For example... Figure 7 As shown:

[0059] A second partition 121 is provided above the first partition 120. The first partition 120 and the second partition 121 divide the storage chamber 111 into three layers. The height of the three storage chambers 111 is the same. The end of the first partition 120 near the drive 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 the three storage chambers 111 form an "S"-shaped connection. Furthermore, the area between the bent end of the first partition 120 and the drive mechanism 140 in the storage chamber 111 forms a waste chamber 122 for collecting the bottom activated carbon particles 200.

[0060] The working principle of this embodiment is as follows:

[0061] First, refer to Figure 8 In the upper part of the diagram, the two pusher components 130 are labeled A, B, and C. The waste chamber 122 is normally idle, and the activated carbon particles 200 are mainly distributed in the three-layer storage chamber 111. When the activated carbon particles 200 at the bottom are saturated, the pull rope 131 is wound up by the drive mechanism 140.

[0062] Then, refer to Figure 8 In the lower half of the structure, A, B, and C are all pulled by the pull rope 131. During the pulling process, C pushes the activated carbon particles 200 in front of it into the waste chamber 122, B pushes the activated carbon particles 200 in front of it into the bottom storage chamber 111, and A pushes the activated carbon particles 200 in front of it into the middle storage chamber 111.

[0063] Therefore, by using the layering and pushing method of the pusher 130, not only can the position of the activated carbon particles 200 be exchanged, but also the advantage of the pusher 130 in pushing all the activated carbon particles 200 can be used 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 use, thus not affecting the gas passage efficiency.

[0064] It should be noted that, Figure 8 The activated carbon carrier 110 does not have ventilation holes 112 in the area corresponding to the waste chamber 122. However, those skilled in the art can make flexible adjustments according to the actual situation. For example, it is also feasible to set ventilation holes 112 in the area of ​​the waste chamber 122.

[0065] The second objective of this invention is to provide a tail gas treatment process for the recovery of waste halogenated organic solvents, comprising the following steps:

[0066] S1. Waste halogenated organic solvent tail gas enters the tail gas filter box 100, and after being adsorbed and filtered by the activated carbon particles 200 inside the activated carbon carrier 110, it is discharged to the high altitude through the exhaust pipe 103 under the action of the fan 102.

[0067] S2. When the activated carbon particles 200 at the bottom of the activated carbon carrier 110 are saturated, the drive mechanism 140 is activated, and the pusher 130 is moved by the drive mechanism 140.

[0068] S3. The pusher 130 moves to push the activated carbon particles 200 in front of it into the storage chamber 111 of the next layer, so that the activated carbon particles 200 in the multi-layer storage chamber 111 will exchange positions.

[0069] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tail gas treatment device for the recovery of waste halogenated organic solvents, comprising a longitudinally arranged tail gas filter box (100) and a fan (102) connected to the tail gas filter box (100) via an exhaust pipe (101), wherein the tail gas filter box (100) is provided with a plurality of activated carbon carriers (110) having a permeable structure, characterized in that: The activated carbon carrier (110) has a multi-layered hollow structure with interconnected layers, and each hollow structure is used to store activated carbon particles (200). Each hollow structure is provided with a pusher (130), which 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 connecting parts. It also includes a drive mechanism (140) configured to drive the pusher (130) to move; The multiple pusher components (130) are connected in series; The activated carbon carrier (110) has a storage chamber (111) inside. The storage chamber (111) is laterally divided into two layers by a first partition (120), and the two layers of storage chamber (111) are in a connected state. Each storage chamber (111) contains activated carbon granules (200). The height of the pusher (130) is consistent with the height of the storage cavity (111) of the corresponding layer; The activated carbon carrier (110) is also provided with a pull rope (131) for connecting multiple pusher components (130) in series, and one end of the pull rope (131) is connected to the drive mechanism (140).

2. The tail gas treatment equipment for the recovery of waste halogenated organic solvents according to claim 1, characterized in that: The first partition (120) and the upper and lower end faces of the storage chamber (111) are provided with multiple through vent holes (112).

3. The tail gas treatment equipment for the recovery of waste halogenated organic solvents according to claim 1, characterized in that: An air guide cavity (141) is provided at one end of the exhaust gas filter box (100). The drive mechanism (140) includes a take-up shaft (145) rotatably disposed in the air guide cavity (141) and a drive component for driving the take-up shaft (145) to rotate; wherein, one end of the pull rope (131) slides into the air guide cavity (141) and is wound around the outer ring of the take-up shaft (145).

4. The tail gas treatment equipment for the recovery of waste halogenated organic solvents according to claim 3, characterized in that: The drive unit includes a motor for driving the take-up shaft (145) to rotate.

5. The tail gas treatment equipment for the recovery of waste halogenated organic solvents according to claim 3, characterized in that: The drive unit includes an impeller (146) that is coaxially fixedly connected to the winding shaft (145). The two 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 the pipe (144); A valve (105) is installed inside the exhaust pipe (101).

6. The tail gas treatment equipment for the recovery of waste halogenated organic solvents according to claim 1, 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 chamber (111) into three layers; The first partition (120) is bent upward at one end near the drive mechanism (140) to the top of the storage chamber (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 the three storage chambers (111) form an "S"-shaped connection. The storage chamber (111) forms a waste chamber (122) for collecting bottom activated carbon particles (200) in the area between the bent end of the first partition (120) and the drive mechanism (140).

7. A tail gas treatment process for a tail gas treatment device for the recovery of waste halogenated organic solvents as described in any one of claims 1-6, characterized in that: The methods and steps include the following: S1. Waste halogenated organic solvent tail gas enters the tail gas filter box (100), and after being adsorbed and filtered by the activated carbon particles (200) inside the activated carbon carrier (110), it is discharged to the 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 saturated, the drive mechanism (140) is activated, and the pusher (130) is moved by the drive mechanism (140). S3. The pusher (130) moves to push the activated carbon particles (200) in front of it into the storage chamber (111) of the next layer, so that the activated carbon particles (200) in the multi-layer storage chamber (111) will exchange positions.

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