VOCs waste gas treatment system

Abstract

The invention relates to the technical field of VOCs waste gas treatment, and discloses a VOCs waste gas treatment system which comprises a waste gas collection box used for collecting VOCs waste gas; the spraying treatment assembly comprises a first treatment tank and a spraying part, the first treatment tank is communicated with the waste gas collecting box through a first pipeline, and the spraying part is arranged in the first treatment tank and used for spraying the VOCs waste gas; the adsorption treatment assembly comprises a second treatment tank and a plurality of adsorption parts, the second treatment tank communicates with the first treatment tank through a second pipeline, and the adsorption parts are arranged in the second treatment tank in the axial direction and used for adsorbing VOCs waste gas; and the replacement assembly comprises a connecting piece and a replacement piece, the connecting piece is arranged on the second treatment tank, and the replacement piece is arranged in the connecting piece and used for sealing and replacing the adsorption piece in the second treatment tank. The waste gas treatment device is simple in structure, realizes multi-stage treatment of waste gas, ensures the treatment effect, realizes sealed replacement of the adsorption part, and avoids waste gas leakage.

Description

Technical Field

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

[0002] VOCs mainly refer to toxic organic compounds, including hydrocarbons, ketones, aldehydes, alcohols, esters, benzene and benzene homologues. Among them, benzene and benzene homologues are the most harmful, and can enter the human body through the respiratory tract and skin, causing lesions in the respiratory tract, blood, and liver organs. VOCs are flammable and explosive, toxic and harmful, and difficult to control due to their components.

[0003] At present, the main technologies for treating VOCs waste gas include adsorption technology, catalytic oxidation technology, incineration and destruction technology, biological purification technology, etc. However, the existing technology mostly uses a single technical means to treat VOCs waste gas, resulting in less than ideal treatment effects. At the same time, for adsorption treatment technology, as the adsorption process proceeds, the adsorption parts need to be replaced regularly. However, the replacement in the existing technology requires stopping the equipment operation, and the staff needs to wear protective equipment to avoid gas leakage during the replacement process, which affects the health of the staff and thus affects the overall treatment efficiency.

[0004] Therefore, there is an urgent need for a VOCs waste gas treatment system to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a VOCs waste gas treatment system to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a VOCs waste gas treatment system, comprising:

[0007] Waste gas collection box, used to collect VOCs waste gas;

[0008] A spray treatment assembly, comprising a first treatment tank and a spray part, wherein the first treatment tank is connected to the exhaust gas collection box through a first pipe, and the spray part is arranged in the first treatment tank for spraying the VOCs exhaust gas;

[0009] An adsorption treatment assembly, comprising a second treatment tank and a plurality of adsorption members, wherein the second treatment tank is connected to the first treatment tank through a second pipe, and the plurality of adsorption members are axially arranged in the second treatment tank for adsorption treatment of VOCs waste gas;

[0010] The replacement component comprises a connecting piece and a replacement piece, wherein the connecting piece is arranged on the second processing tank, and the replacement piece is arranged in the connecting piece, and is used for sealing and replacing the adsorption piece in the second processing tank.

[0011] According to a VOCs waste gas treatment system provided by the present invention, the spray part includes a threaded rod rotatably connected to the middle part of the first treatment tank, a support ring is threadedly connected to the threaded rod, one end of the spray pipe is axially fixedly connected to the support ring, the other end of the spray pipe is fixedly connected to an outer ring, the outer ring is in sliding contact with the inner wall of the first treatment tank, the spray pipes are fixedly connected to a conduit, the conduit is connected to the external spray liquid, a plurality of spray heads are axially fixedly connected to the spray pipe, a motor is fixedly connected to the top of the first treatment tank, and one end of the threaded rod extends out of the first treatment tank and is fixedly connected to the output shaft of the motor.

[0012] According to a VOCs waste gas treatment system provided by the present invention, a guide rod is fixedly connected to the first treatment tank, the guide rod is arranged parallel to the threaded rod, and the support ring is sleeved on the guide rod and slidably cooperates with the guide rod.

[0013] According to a VOCs waste gas treatment system provided by the present invention, the adsorbent includes a support frame, the top and bottom ends of the support frame are fixedly connected to filters, a plurality of activated carbon blocks are arranged between the two filters, a plurality of plug-in slots are opened on the second treatment tank, the support frame is adapted to the plug-in slots, and a sealing member is arranged on the support frame, and the support frame is sealed and connected to the plug-in slots through the sealing member.

[0014] According to a VOCs waste gas treatment system provided by the present invention, a groove is opened on the side wall of the support frame, a plurality of sliding rods are slidably connected in the groove, a sealing block is fixedly connected to one end of the sliding rod, a sliding block is fixedly connected in the plug-in groove, the groove is adapted to the sliding block, a sealing plate is fixedly connected to the sliding block, and the sealing block is arranged in contact with the sealing plate.

[0015] According to a VOCs waste gas treatment system provided by the present invention, both sides of the support frame are slidably connected with top rods, one end of a plurality of connecting rods is hinged on the top rod, and the other end of the connecting rod is hinged to the sliding rod. A first spring is sleeved on the top rod, and the two ends of the first spring are fixedly connected to the top rod and the support frame respectively.

[0016] According to a VOCs waste gas treatment system provided by the present invention, the sealing plate is an arc-shaped structure, and protrusions are fixedly connected at both ends, and are configured so that when the sealing block squeezes the sealing plate, the protrusions come into contact with the inner wall of the groove.

[0017] According to a VOCs waste gas treatment system provided by the present invention, the connecting part includes a lifting bracket, a connecting box is fixedly connected to the lifting bracket, a replacement port is opened on one side of the connecting box, an annular groove is opened on the replacement port, a suction nozzle is arranged in the annular groove, and the suction nozzle is arranged in contact with the second treatment tank.

[0018] According to a VOCs waste gas treatment system provided by the present invention, the replacement part includes two screw slides arranged on the connecting box body, and the screw slides are connected with clamping claws through electric telescopic rods, and the clamping claws are used to clamp the support frame.

[0019] According to a VOCs waste gas treatment system provided by the present invention, a mounting plate is fixedly connected to the support frame, the mounting plate is connected to the second treatment tank by bolts, a handle is fixedly connected to the mounting plate, and the clamping claw is used to clamp the handle.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] The present invention provides a VOCs waste gas treatment system. Specifically, waste gas is collected in a waste gas collection box, first transported to a first treatment tank, and primary treatment is performed on the waste gas through a spray treatment component, while ensuring sufficient contact between the reaction liquid and the waste gas to ensure the treatment effect. After the primary treatment, the waste gas is transported to a second treatment tank, and the waste gas is adsorbed by a provided adsorption component. During the adsorption process, the waste gas is connected to the second treatment tank through a provided connection component. After the connection, the adsorption component is sealed and replaced through a provided replacement component to avoid waste gas leakage and ensure the overall treatment efficiency. The present application has a simple structure, realizes multi-stage treatment of waste gas, ensures treatment effect, and realizes sealing replacement of the adsorption component to avoid waste gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the first processing tank of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the second processing tank of the present invention;

[0026] Figure 4This is a schematic diagram of the internal structure of the connection box of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection frame of the present invention when it is not installed;

[0028] Figure 6 For the present invention Figure 5 A partial enlarged view of the middle part;

[0029] Figure 7 It is a schematic diagram of the top rod structure of the present invention;

[0030] Figure 8 For the present invention Figure 7 A partial enlarged view of point B in the middle;

[0031] Fig. 9 It is a schematic diagram of the suction nozzle structure of the present invention;

[0032] Among them, 1. exhaust gas collection box; 2. first treatment tank; 3. first pipeline; 4. second treatment tank; 5. second pipeline; 6. threaded rod; 7. support ring; 8. spray pipe; 9. outer ring; 10. guide tube; 11. spray head; 12. motor; 13. guide rod; 14. support frame; 15. filter; 16. activated carbon block; 17. plug-in slot; 18. groove; 19. slide rod; 20. sealing block; 21. slider; 22. sealing plate; 23. push rod; 24. connecting rod; 25. first spring; 26. protrusion; 27. lifting bracket; 28. connecting box; 29. ​​replacement port; 30. annular groove; 31. suction nozzle; 32. lead screw slide; 33. electric telescopic rod; 34. clamping claw; 35. mounting plate; 36. bolt; 37. handle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the related technology, such as a VOCs waste gas treatment system, it relates to the technical field of chemical environmental protection equipment. This VOCs waste gas treatment system includes: a treatment tower, which is provided with a cavity for VOCs to flow, and an air inlet pipe is provided at the bottom of the treatment tower, and the air inlet pipe is used to introduce VOCs into the treatment tower; a reaction zone, the reaction zone is provided at the bottom of the treatment tower, and the reaction zone is filled with a prefabricated reaction liquid for reacting with VOCs, and the air outlet of the air inlet pipe is located below the reaction liquid surface of the prefabricated reaction liquid; a filter layer is provided in the treatment tower, located above the reaction zone, and the filter layer is provided with multiple pores for VOCs to pass through; a vacuum pump is connected to the top of the treatment tower, and a negative pressure is formed at the top of the cavity to provide power for VOCs to pass through the filter layer. When VOCx enters the reaction zone, it is dispersed into the reaction zone by the turbulent blades, which increases the contact between VOCs and the reaction liquid, thereby improving the reaction efficiency.

[0036] For example, a VOCs waste gas treatment system includes a VOCs closed generator, the top of which is respectively connected with a connecting pipe, a liquid inlet pipe and an air inlet pipe, one end of the connecting pipe being connected with a coalescing oil remover, and the waste gas passes through the connecting pipe and enters the coalescing oil remover, the gas-water membrane separator, the iron-carbon micro-electrolysis reactor and the interior of a VOCs secondary purification chamber in sequence for waste gas treatment, and the waste gas undergoes a catalytic oxidation reaction with the iron-carbon micro-electrolysis reactor and is eventually decomposed into CO2, H2O and a small amount of inorganic gas; the decomposed gas enters the VOCs secondary purification chamber and is discharged through the outlet after meeting the standards.

[0037] In the above-mentioned related technologies, the treatment is performed simply by a single technical means, resulting in an unsatisfactory treatment effect. At the same time, for the adsorption treatment technology, as the adsorption process proceeds, the adsorption parts need to be replaced regularly. However, the replacement in the prior art requires stopping the equipment operation, and the staff need to wear protective equipment to avoid gas leakage during the replacement process, which affects the health of the staff and further affects the overall treatment efficiency. Therefore, in response to the above problems, this application proposes a VOCs waste gas treatment system, and the scheme is as follows:

[0038] Reference Figure 1-Figure 9 The present invention provides a VOCs waste gas treatment system, comprising:

[0039] An exhaust gas collection box 1 is used to collect VOCs exhaust gas;

[0040] The spray treatment assembly includes a first treatment tank 2 and a spray part. The first treatment tank 2 is connected to the exhaust gas collection box 1 through a first pipe 3. The spray part is arranged in the first treatment tank 2 for spraying the VOCs exhaust gas.

[0041] The adsorption treatment assembly includes a second treatment tank 4 and a plurality of adsorption components. The second treatment tank 4 is connected to the first treatment tank 2 through a second pipe 5. The plurality of adsorption components are axially arranged in the second treatment tank 4 for adsorption treatment of VOCs waste gas.

[0042] The replacement component includes a connecting piece and a replacement piece. The connecting piece is arranged on the second processing tank 4 , and the replacement piece is arranged inside the connecting piece, and is used for sealing and replacing the adsorption piece inside the second processing tank 4 .

[0043] In one embodiment of the present invention, specifically, waste gas is collected in a waste gas collecting box 1 and first transported to a first treatment tank 2, where the waste gas is primarily treated by a spray treatment component, while ensuring sufficient contact between the reaction liquid and the waste gas to ensure the treatment effect. After the primary treatment, the waste gas is transported to a second treatment tank 4, where the waste gas is adsorbed by an adsorption component. During the adsorption process, the waste gas is connected to the second treatment tank 4 through a connecting component. After the connection, the adsorption component is sealed and replaced through a replacement component to avoid leakage of waste gas and ensure the overall treatment efficiency.

[0044] As an optional embodiment, the spray part includes a threaded rod 6 rotatably connected to the middle part of the first treatment tank 2, a support ring 7 is threadedly connected to the threaded rod 6, one end of a spray pipe 8 is axially fixedly connected to the support ring 7, the other end of the spray pipe 8 is fixedly connected to an outer ring 9, the outer ring 9 is in sliding contact with the inner wall of the first treatment tank 2, the spray pipe 8 is fixedly connected to a conduit 10, the conduit 10 is connected to the external spray liquid, a plurality of spray heads 11 are axially fixedly connected to the spray pipe 8, a motor 12 is fixedly connected to the top of the first treatment tank 2, and one end of the threaded rod 6 extends out of the first treatment tank 2 and is fixedly connected to the output shaft of the motor 12.

[0045] In one embodiment of the present invention, the threaded rod 6 is driven to rotate by a motor 12. When the threaded rod 6 rotates, the support ring 7 is driven to move vertically, thereby realizing the movement of the height of the spray pipe 8, achieving spray treatment of the internal exhaust gas and ensuring the spraying effect. At the same time, the outer ring 9 is provided to scrape the inner wall of the first treatment tank 2 to avoid residual liquid after the reaction.

[0046] As an optional implementation, a guide rod 13 is fixedly connected inside the first processing tank 2 , the guide rod 13 is arranged parallel to the threaded rod 6 , and the support ring 7 is sleeved on the guide rod 13 and slidably cooperates with the guide rod 13 .

[0047] In one embodiment of the present invention, the guide rod 13 is provided to ensure the stable lifting and lowering of the support ring 7 when the threaded rod 6 rotates.

[0048] As an optional embodiment, the adsorbent includes a support frame 14, and the top and bottom ends of the support frame 14 are fixedly connected to filter screens 15, a plurality of activated carbon blocks 16 are arranged between the two filter screens 15, and a plurality of plug-in grooves 17 are opened on the second treatment tank 4, the support frame 14 is adapted to the plug-in grooves 17, and a seal is arranged on the support frame 14, and the support frame 14 is sealed and connected to the plug-in grooves 17 through the seal.

[0049] In one embodiment of the present invention, the adsorption treatment of the exhaust gas is achieved by setting an activated carbon block 16.

[0050] As an optional embodiment, a groove 18 is opened on the side wall of the support frame 14, and a plurality of sliding rods 19 are slidably connected in the groove 18. A sealing block 20 is fixedly connected to one end of the sliding rod 19. A sliding block 21 is fixedly connected in the plug-in groove 17. The groove 18 is adapted to the sliding block 21. A sealing plate 22 is fixedly connected to the sliding block 21, and the sealing block 20 is arranged in contact with the sealing plate 22.

[0051] In one embodiment of the present invention, the sealing block 20 is provided in contact with the sealing plate 22 to achieve sealing of the support frame 14 after installation, thereby preventing the exhaust gas from flowing out through the gaps and ensuring that the exhaust gas can stably pass through the activated carbon block.

[0052] As an optional embodiment, both sides of the support frame 14 are slidably connected with a push rod 23, one end of a plurality of connecting rods 24 is hinged on the push rod 23, the other end of the connecting rod 24 is hinged to the sliding rod 19, and a first spring 25 is sleeved on the push rod 23, and the two ends of the first spring 25 are fixedly connected to the push rod 23 and the support frame 14 respectively.

[0053] In one embodiment of the present invention, the push rod 23 is reset by a first spring 25. In the initial state, the push rod 23 is in an extended state. During installation, the push rod 23 is squeezed to slide inward. During sliding, the connecting rod 24 is provided to drive the slide rod 19 to extend, so that the sealing block 20 is in stable contact with the sealing plate 22.

[0054] As an optional embodiment, the sealing plate 22 is an arc-shaped structure, and protrusions 26 are fixedly connected to both ends, and are configured so that when the sealing block 20 squeezes the sealing plate 22, the protrusions 26 abut against the inner wall of the groove 18.

[0055] In one embodiment of the present invention, the sealing plate 22 is an arc-shaped structure. When the sealing block 20 contacts the sealing plate 22, the sealing plate 22 is squeezed to expand, so that the protrusions 26 at both ends contact the inside of the groove 18, further ensuring the sealing state after the two are connected, avoiding gas leakage, and ensuring that the gas passes through the activated carbon block 16 stably.

[0056] As an optional embodiment, the connecting part includes a lifting bracket 27, to which a connecting box 28 is fixedly connected. A replacement port 29 is provided on one side of the connecting box 28, and an annular groove 30 is provided on the replacement port 29. A suction nozzle 31 is provided in the annular groove 30, and the suction nozzle 31 is provided in contact with the second processing tank 4.

[0057] In one embodiment of the present invention, when replacement is required, the lifting bracket 27 is lifted and lowered to control the height of the connecting box 28. After adjustment, the replacement port 29 is aligned with the position where it needs to be replaced, and a stable sealing contact is achieved between the two through the suction nozzle 31 to avoid gas leakage during replacement.

[0058] As an optional embodiment, the replacement part includes two screw slides 32 arranged on the connecting box 28, and the screw slides 32 are connected to clamping claws 34 through electric telescopic rods 33, and the clamping claws 34 are used to clamp the support frame 14.

[0059] In one embodiment of the present invention, the electric telescopic rod 33 is driven to move vertically by the screw slide 32 , and the support frame 14 is installed and disassembled by the clamping claw 34 during the movement.

[0060] Specifically, when the support frame 14 needs to be replaced, a support frame 14 is first placed in the connecting box 28, the replacement port 29 is aligned with the support frame 14 that needs to be replaced, the support frame 14 is first disassembled by the clamping claws 34, and then recovered to the connecting box 28 and moved upward. The support frame 14 below is moved upward and its disassembled part is pushed into the second processing tank 4 to realize the replacement of the support frame 14.

[0061] As an optional implementation, a mounting plate 35 is fixedly connected to the support frame 14 , the mounting plate 35 is connected to the second processing tank 4 via bolts 36 , a handle 37 is fixedly connected to the mounting plate 35 , and the clamping claw 34 is used to clamp the handle 37 .

[0062] In one embodiment of the present invention, the mounting plate 35 is arranged to contact the outer side wall of the second processing tank 4 , and the mounting plate 35 is installed by screwing in the bolts 36 .

[0063] Specifically, the handle 37 facilitates the clamping of the clamping claw 34 to achieve installation and disassembly of the entire support frame 14. Before disassembly, the bolt 36 needs to be manually unscrewed.

[0064] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A VOCs waste gas treatment system, characterized in that: include: An exhaust gas collection box (1) is used to collect VOCs exhaust gas; A spray treatment assembly, comprising a first treatment tank (2) and a spray component, wherein the first treatment tank (2) is connected to the waste gas collection box (1) via a first pipe (3), and the spray component is arranged in the first treatment tank (2) for spraying the VOCs waste gas; An adsorption treatment component comprises a second treatment tank (4) and a plurality of adsorption components, wherein the second treatment tank (4) is connected to the first treatment tank (2) via a second pipe (5), and the plurality of adsorption components are axially arranged in the second treatment tank (4) for adsorption treatment of VOCs waste gas; The replacement component comprises a connecting piece and a replacement piece, wherein the connecting piece is arranged on the second processing tank (4), and the replacement piece is arranged in the connecting piece, and is used for sealing and replacing the adsorption piece in the second processing tank (4).

2. A VOCs waste gas treatment system according to claim 1, characterized in that: The spraying member comprises a threaded rod (6) rotatably connected to the middle part of the first processing tank (2), a support ring (7) being threadedly connected to the threaded rod (6), one end of a spray pipe (8) being fixedly connected to the support ring (7) along the axial direction, an outer ring (9) being fixedly connected to the other end of the spray pipe (8), the outer ring (9) being in sliding contact with the inner wall of the first processing tank (2), a conduit (10) being fixedly connected to each of the spray pipes (8), the conduit (10) being communicated with external spray liquid, a plurality of spray heads (11) being fixedly connected to the spray pipe (8) along the axial direction, a motor (12) being fixedly connected to the top end of the first processing tank (2), and one end of the threaded rod (6) extending out of the first processing tank (2) and fixedly connected to the output shaft of the motor (12).

3. A VOCs waste gas treatment system according to claim 2, characterized in that: A guide rod (13) is fixedly connected inside the first processing tank (2), the guide rod (13) is arranged parallel to the threaded rod (6), and the support ring (7) is sleeved on the guide rod (13) and slidably cooperates with the guide rod (13).

4. A VOCs waste gas treatment system according to claim 1, characterized in that: The adsorbent comprises a support frame (14), the top and bottom of the support frame (14) are fixedly connected to filter screens (15), a plurality of activated carbon blocks (16) are arranged between the two filter screens (15), the second treatment tank (4) is provided with a plurality of plug-in slots (17), the support frame (14) is adapted to the plug-in slots (17), and a sealing member is arranged on the support frame (14), and the support frame (14) is sealedly connected to the plug-in slots (17) via the sealing member.

5. A VOCs waste gas treatment system according to claim 4, characterized in that: A groove (18) is provided on the side wall of the support frame (14), a plurality of slide bars (19) are slidably connected in the groove (18), a sealing block (20) is fixedly connected to one end of the slide bar (19), a sliding block (21) is fixedly connected in the plug-in slot (17), the groove (18) is adapted to the sliding block (21), a sealing plate (22) is fixedly connected to the sliding block (21), and the sealing block (20) is arranged in contact with the sealing plate (22).

6. A VOCs waste gas treatment system according to claim 5, characterized in that: Both sides of the support frame (14) are slidably connected with push rods (23), one end of a plurality of connecting rods (24) is hinged on the push rod (23), and the other end of the connecting rod (24) is hinged to the sliding rod (19), and a first spring (25) is sleeved on the push rod (23), and the two ends of the first spring (25) are respectively fixedly connected to the push rod (23) and the support frame (14).

7. A VOCs waste gas treatment system according to claim 5, characterized in that: The sealing plate (22) is an arc-shaped structure, and has protrusions (26) fixedly connected at both ends, and is configured so that when the sealing block (20) presses the sealing plate (22), the protrusions (26) come into contact with the inner wall of the groove (18).

8. A VOCs waste gas treatment system according to claim 4, characterized in that: The connecting member comprises a lifting bracket (27), a connecting box (28) is fixedly connected to the lifting bracket (27), a replacement port (29) is provided on one side of the connecting box (28), an annular groove (30) is provided on the replacement port (29), a suction nozzle (31) is provided in the annular groove (30), and the suction nozzle (31) is provided in contact with the second processing tank (4).

9. A VOCs waste gas treatment system according to claim 8, characterized in that: The replacement part comprises two screw slides (32) arranged on the connecting box (28), and the screw slides (32) are connected to clamping claws (34) via electric telescopic rods (33), and the clamping claws (34) are used to clamp the support frame (14).

10. A VOCs waste gas treatment system according to claim 9, characterized in that: A mounting plate (35) is fixedly connected to the support frame (14), and the mounting plate (35) is connected to the second processing tank (4) via bolts (36). A handle (37) is fixedly connected to the mounting plate (35), and the clamping claw (34) is used to clamp the handle (37).

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