VOCs removal device for VOCs waste gas treatment technology

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a VOCs removal device for a VOCs waste gas treatment technology, the VOCs removal device comprises a mounting base and an adsorption tower arranged at the top of the mounting base, the adsorption tower comprises an auxiliary sealing section, a gas inlet end, a gas exhaust end and a plurality of activated carbon adsorption sections which are fixedly connected, a steam transfer box is fixedly mounted on the front surface of the activated carbon adsorption section, and the steam transfer box is fixedly communicated with a pyrolysis main air inlet pipe and an expansion main air inlet pipe. According to the VOCs removal device for the VOCs waste gas treatment technology, a plurality of activated carbon adsorption sections which are connected end to end are arranged in an adsorption tower, and packing air inlet assemblies are arranged in the activated carbon adsorption sections, so that when activated carbon is pyrolyzed, steam is introduced into the packing air inlet assemblies along a steam transfer box, and a plurality of unfolding driving air bags are inflated and expanded; and the packing cushion is driven to unfold to pack the connecting shell, so that the activated carbon can be independently pyrolyzed by the plurality of activated carbon adsorption sections.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, in particular to a VOCs removal device used in VOCs waste gas treatment technology. Background Art

[0002] Among the treatment processes of VOCs waste gas treatment technology, the activated carbon adsorption method is suitable for the purification of VOCs with low water and dust content and low to medium concentrations. It has a high removal rate and is easy to control automatically. Therefore, it is also the most widely used and simple treatment process. Its more typical "primary adsorption-desorption" method, for example: the pre-treated waste gas is passed into the activated carbon adsorption tower, and the pollutants in the waste gas will be adsorbed on the activated carbon in the adsorption bed; the adsorption tower is generally set up in two groups. When the activated carbon in one adsorption tower is saturated with adsorption, it can be switched to the other group of adsorption towers through a valve for adsorption, and then steam is introduced into the saturated adsorption bed, and water vapor is used for high-temperature decomposition and regeneration. The pollutants are vaporized and separated from the adsorbent, and enter the condensation system with the water vapor.

[0003] When using steam to pyrolyze and regenerate the activated carbon in the adsorption tower, the steam inlet pipe is often connected to one end of the adsorption tower. During pyrolysis, the steam enters along one end of the adsorption tower. However, since the activated carbon in the adsorption tower is usually arranged in multiple layers, the steam will first pass through the activated carbon layer at the front when entering along one end. At this time, the activated carbon layer at the rear will be pyrolyzed by the steam mixed with volatile organic compounds, resulting in low desorption efficiency of the activated carbon layer below. In addition, the steam pipe is directly connected to one end of the adsorption tower and steam is introduced. It is difficult for the steam to fully contact the activated carbon in various places during the flow process, and there will be a situation where the local activated carbon is not thoroughly pyrolyzed. When it is recycled again, it will also secondary lead to poor adsorption effect of local activated carbon. For this reason, we propose a VOCs removal device for VOCs waste gas treatment technology to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a VOCs removal device for VOCs waste gas treatment technology to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a VOCs removal device for VOCs waste gas treatment technology, comprising a mounting base and an adsorption tower arranged on the top of the mounting base, the adsorption tower comprising a fixedly connected auxiliary sealing section, an air inlet end head, an exhaust end head, and a plurality of activated carbon adsorption sections, a steam transfer box fixedly mounted on the front of the activated carbon adsorption section, and a pyrolysis main air inlet pipe and an expansion main air inlet pipe fixedly connected to the steam transfer box, a pressure valve being provided at the contact position between the pyrolysis main air inlet pipe and the steam transfer box, and steam exhaust pipes being provided on the tops of the plurality of activated carbon adsorption sections;

[0006] The activated carbon adsorption section includes a connecting shell, in which an activated carbon filter assembly and a sealed air intake assembly located at the front end of the activated carbon filter assembly are arranged;

[0007] The isolation air intake assembly includes a mounting back plate and an isolation cushion fixedly connected to the mounting back plate. A plurality of steam outlet hoses are provided on one side of the isolation cushion and a plurality of deployment drive air bags are provided on the other side. The steam outlet hoses are connected to the pyrolysis main air intake pipe, and the deployment drive air bags are connected to the deployment main air intake pipe. A plurality of air outlet holes are provided on the steam outlet hose. A plurality of reset spring sheets are embedded in the isolation cushion, and the isolation cushion can be folded and contracted under the elastic force of the reset spring sheets.

[0008] Preferably, the ends of the activated carbon adsorption section, the auxiliary sealing section, the air inlet end and the exhaust end are all provided with connecting flanges. The auxiliary sealing section is located between the exhaust end and the activated carbon adsorption section at the rear end. The various structures in the adsorption tower can be firmly connected through the connecting flange to ensure the stability of the adsorption tower after assembly, while facilitating the disassembly and assembly of various parts.

[0009] Preferably, the auxiliary sealing section is provided with an isolation air intake assembly. Unlike the isolation air intake assembly in the activated carbon adsorption section, the isolation air intake assembly in the auxiliary sealing section is not provided with a steam outlet hose. The isolation air intake assembly in the auxiliary sealing section can be used to isolate a group of activated carbon adsorption sections at the rear end, thereby realizing independent isolation of several activated carbon adsorption sections, so that multiple activated carbon adsorption sections can independently perform pyrolysis on the activated carbon.

[0010] Preferably, the activated carbon filter assembly includes a placement frame, and metal mesh plates are fixedly installed at the front and rear ends of the placement frame. The interior of the placement frame is provided with criss-cross partition plates, and the interior of the placement frame is filled with activated carbon. The partition plates can limit the position of the activated carbon to prevent the activated carbon from piling up in one place after being filled in the placement frame.

[0011] Preferably, the mounting back plate is fixedly mounted on a side of the connecting shell close to the steam transfer box, and a positioning baffle cooperating with the isolation cushion is provided on the mounting back plate. The isolation cushion is restricted by the positioning baffle to prevent the isolation cushion from excessively folding when driven by the deployed driving airbag.

[0012] Preferably, the isolation cushion is an accordion-shaped structure as a whole, with the top of the isolation cushion abutting against the inner side of the top of the connecting shell, and the bottom abutting against the bottom inside the connecting shell, ensuring that the activated carbon adsorption section can be effectively sealed after the isolation cushion is unfolded, thereby ensuring the sealing of the connecting shell after sealing.

[0013] Preferably, the top and bottom of the inner side of the connecting shell are provided with limiting blocks located on both sides of the isolation pad, and a number of supporting frames are embedded inside the isolation pad. The expanded isolation pad is limited by the limiting blocks to avoid large movement of the compressed position of the isolation pad when steam is introduced into the connecting shell.

[0014] Preferably, the end of the pyrolysis main air intake pipe away from the steam transfer box is fixedly connected to a plurality of pyrolysis intake manifolds, and the pyrolysis intake manifold is fixedly connected to the steam outlet hose, and the end of the deployment main air intake pipe away from the steam transfer box is fixedly connected to a plurality of deployment intake manifolds, and the deployment intake manifold is fixedly connected to the deployment drive airbag. By setting the deployment intake manifold, the deployment main air intake pipe can be connected to the deployment drive airbag, ensuring that steam can be introduced into the deployment drive airbag for expansion, driving the isolation cushion to deploy.

[0015] Preferably, the steam exhaust pipe is fixedly connected to the connecting shell, and the connection position is located at the rear end of the activated carbon filter assembly. An electric butterfly valve is provided on the steam exhaust pipe near the outlet. When the activated carbon is pyrolyzed, the electric butterfly valve is in an open state, and when the exhaust gas is adsorbed, the electric butterfly valve is in a closed state.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The VOCs removal device used in this VOCs waste gas treatment technology is configured by arranging several activated carbon adsorption sections connected end to end in an adsorption tower, and arranging an isolation air intake assembly in the activated carbon adsorption section. When the activated carbon is pyrolyzed, steam is introduced into the isolation air intake assembly along the steam transfer box, and multiple deployment drive airbags are inflated, driving the isolation cushions to deploy and isolate the connected shell, so that the multiple activated carbon adsorption sections can independently pyrolyze the activated carbon, avoiding the influence of the steam mixed with pollutants after the front-end pyrolysis on the rear-end pyrolysis effect, thereby improving the desorption effect of the pollutants adsorbed on the activated carbon.

[0018] 2. The VOCs removal device used in this VOCs waste gas treatment technology sets a pressure valve on the pyrolysis main air inlet pipe, so that the pyrolysis main air inlet pipe is ventilated only after the pressure in the steam transfer box reaches a certain level, so that the expansion main air inlet pipe and the pyrolysis main air inlet pipe are ventilated in sequence, thereby ensuring that the steam outlet hose is ventilated only after the sealing cushion is expanded to seal the connected shell, thereby achieving effective isolation of multiple activated carbon adsorption sections.

[0019] 3. The VOCs removal device used in this VOCs waste gas treatment technology, when the air path of the steam outlet hose is unblocked, the steam can be discharged along the multiple outlet holes of several steam outlet hoses on the sealing cushion, so as to discharge the steam along multiple points, so that the activated carbon in the activated carbon filter assembly can fully contact with the steam, thereby improving the thermal decomposition effect of the activated carbon and avoiding the situation where the activated carbon is partially thermally decomposed incompletely.

[0020] 4. In the VOCs removal device used in this VOCs waste gas treatment technology, after the activated carbon is pyrolyzed, the steam supply in the steam transfer box is stopped, and the sealing cushion is folded and contracted under the elastic force of the reset spring sheet, releasing the sealing state of several activated carbon adsorption sections, making it easier for several activated carbon adsorption sections to combine and adsorb the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention after overall assembly;

[0022] Figure 2 This is a structural schematic diagram of the installation positions of the pyrolysis main air intake pipe and the expansion main air intake pipe in the present invention;

[0023] Figure 3 This is a schematic structural diagram of one end of the activated carbon adsorption section in the present invention;

[0024] Figure 4 Schematic diagram of the structure of the activated carbon filter assembly of the present invention;

[0025] Figure 5 This is a schematic structural diagram of the other end of the activated carbon adsorption section in the present invention;

[0026] Figure 6 It is a structural schematic diagram of one side of the isolation air intake assembly in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the other side of the sealed air intake assembly in the present invention;

[0028] Figure 8 It is a structural schematic diagram of a partial cross section of the isolation cushion in the present invention;

[0029] Figure 9 Schematic diagram of the structure of the activated carbon adsorption section in the present invention;

[0030] Figure 10 Schematic diagram of the structure of the side cross-section of the activated carbon adsorption section in the present invention;

[0031] Figure 11 It is a structural schematic diagram of the auxiliary sealing section in the present invention.

[0032] In the figure: 1. Activated carbon adsorption section; 11. Connecting housing; 12. Activated carbon filter assembly; 121. Placement frame; 122. Separator; 123. Metal mesh; 13. Inlet seal assembly; 131. Mounting back plate; 132. Inlet seal cushion; 133. Steam outlet hose; 134. Air outlet; 135. Pyrolysis intake manifold; 136. Deployment of drive airbag; 137. Deployment of intake manifold; 138. Support frame; 139. Return spring; 1310. Positioning baffle; 14. Stop block;

[0033] 2. Auxiliary sealing section; 3. Air inlet end; 4. Exhaust end; 5. Steam transfer box; 6. Pyrolysis main air inlet pipe; 7. Pressure valve; 8. Expansion main air inlet pipe; 9. Steam exhaust pipe; 10. Electric butterfly valve. DETAILED DESCRIPTION

[0034] 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 creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1 to 11 In an embodiment of the present invention, a VOCs removal device for VOCs waste gas treatment technology includes a mounting base and an adsorption tower arranged on the top of the mounting base, the adsorption tower includes a fixedly connected auxiliary sealing section 2, an air inlet end 3, an exhaust end 4 and a plurality of activated carbon adsorption sections 1, a steam transfer box 5 is fixedly installed on the front of the activated carbon adsorption section 1, and a pyrolysis main air inlet pipe 6 and a deployment main air inlet pipe 8 are fixedly connected on the steam transfer box 5, a pressure valve 7 is provided at the contact position between the pyrolysis main air inlet pipe 6 and the steam transfer box 5, a steam exhaust pipe 9 is provided on the top of the plurality of activated carbon adsorption sections 1, and a pressure valve 7 is provided on the pyrolysis main air inlet pipe 6, so that the pyrolysis main air inlet pipe 6 is ventilated only after the pressure in the steam transfer box 5 reaches a certain level, so that the deployment main air inlet pipe 8 and the pyrolysis main air inlet pipe 6 are ventilated in sequence, thereby ensuring that the steam outlet hose 133 is ventilated only after the sealing cushion 132 is expanded to seal the connection shell 11, thereby achieving effective isolation of multiple activated carbon adsorption sections 1;

[0036] The activated carbon adsorption section 1 includes a connecting shell 11, in which an activated carbon filter assembly 12 and a sealed air intake assembly 13 located at the front end of the activated carbon filter assembly 12 are disposed. The sealed air intake assembly 13 is disposed in the activated carbon adsorption section 1. When pyrolyzing the activated carbon, steam is introduced into the sealed air intake assembly 13 along the steam transfer box 5. Multiple deployment drive airbags 136 are inflated, driving the sealed cushions 132 to deploy and seal the connecting shell 11, thereby enabling the multiple activated carbon adsorption sections 1 to independently pyrolyze the activated carbon.

[0037] The isolation air inlet assembly 13 includes a mounting back plate 131 and an isolation cushion 132 fixedly connected to the mounting back plate 131. A plurality of steam outlet hoses 133 are provided on one side of the isolation cushion 132, and a plurality of deployment drive air bags 136 are provided on the other side. The isolation cushion 132, the steam outlet hose 133 and the deployment drive air bag 136 are all made of fabric nylon material, so that they have good sealing and strength. The steam outlet hose 133 is connected to the pyrolysis main air inlet pipe 6, and the deployment drive air bag 136 is connected to the deployment main air inlet pipe 8. A plurality of air outlet holes 134 are provided on the steam outlet hose 133. When the air path of the steam outlet hose 133 is unblocked, steam can be discharged along the isolation cushion 132. The multiple air outlet holes 134 of the several steam outlet hoses 133 on the pad 132 are discharged to realize the discharge of steam along multiple points, so that the activated carbon in the activated carbon filter assembly 12 can fully contact with the steam, thereby improving the thermal decomposition effect of the activated carbon. Several reset spring pieces 139 are embedded in the sealing pad 132, and the sealing pad 132 can be folded and contracted under the elastic force of the reset spring piece 139. After the activated carbon is thermally decomposed, the steam supply in the steam transfer box 5 is stopped, and the sealing pad 132 is folded and contracted under the elastic force of the reset spring piece 139, thereby releasing the sealing state of several activated carbon adsorption sections 1, making it convenient for several activated carbon adsorption sections 1 to be combined to adsorb and treat the exhaust gas.

[0038] As a further implementation scheme of the above invention: the ends of the activated carbon adsorption section 1, the auxiliary sealing section 2, the air inlet end head 3 and the exhaust end head 4 are all provided with connecting flanges, and the auxiliary sealing section 2 is located between the exhaust end head 4 and the activated carbon adsorption section 1 at the rear end. The various structures in the adsorption tower can be firmly connected through the connecting flange to ensure the stability of the adsorption tower after assembly, and at the same time facilitate the disassembly and assembly of various parts, the installation of internal components of each part, and subsequent maintenance.

[0039] As a further implementation scheme of the above invention: a sealing air intake component 13 is provided in the auxiliary sealing section 2, and the sealing air intake component 13 in the auxiliary sealing section 2 can be used to seal a group of activated carbon adsorption sections 1 at the rear end, thereby realizing independent sealing of several activated carbon adsorption sections 1, so that multiple activated carbon adsorption sections 1 can independently pyrolyze the activated carbon. Unlike the sealing air intake component 13 in the activated carbon adsorption section 1, the sealing air intake component 13 in the auxiliary sealing section 2 is not provided with a steam outlet hose 133. The auxiliary sealing section 2 only needs to be sealed, and there is no need to provide a steam outlet hose 133 for steam discharge in the auxiliary sealing section 2.

[0040] As a further implementation scheme of the above invention: the activated carbon filter component 12 includes a placement frame 121, and metal mesh plates 123 are fixedly installed at the front and rear ends of the placement frame 121. By setting the metal mesh plates 123, the activated carbon filled in the placement frame 121 can be restricted to prevent the activated carbon from falling, while ensuring that the gas can flow through the metal mesh plates 123. The interior of the placement frame 121 is provided with criss-cross partition plates 122, and the partition plates 122 can be used to limit the position of the activated carbon to avoid the activated carbon from piling up in one place after being filled in the placement frame 121. The interior of the placement frame 121 is filled with activated carbon, and the activated carbon combination filled in the activated carbon filter components 12 in several activated carbon adsorption sections 1 can efficiently adsorb pollutants in the waste.

[0041] As a further implementation scheme of the above invention: the mounting back plate 131 is fixedly installed on the side of the connecting shell 11 close to the steam transfer box 5. The mounting back plate 131 can be fixedly installed inside the connecting shell 11 by gluing or screwing, thereby ensuring the stability of the overall installation of the isolation air intake assembly 13 inside the connecting shell 11. A positioning baffle 1310 that cooperates with the isolation cushion 132 is provided on the mounting back plate 131. The isolation cushion 132 is restricted by the positioning baffle 1310 to prevent the isolation cushion 132 from excessively folding under the drive of the deployed driving airbag 136.

[0042] As a further implementation scheme of the above invention: the isolation cushion 132 is an accordion-shaped structure as a whole. When the deployment driving airbag 136 is inflated, the isolation cushion 132 can be driven to deploy, so that the end of the isolation cushion 132 is pressed against the inner wall of the connecting shell 11, thereby sealing the activated carbon adsorption section 1. At the same time, after the deployment driving airbag 136 loses pressure, the isolation cushion 132 can be folded and contracted under the elastic force of the reset spring sheet 139. The top of the isolation cushion 132 is pressed against the inner side of the top of the connecting shell 11, and the bottom is pressed against the inner bottom of the connecting shell 11, thereby ensuring that the activated carbon adsorption section 1 can be effectively sealed after the deployment of the isolation cushion 132, thereby ensuring the sealing of the connecting shell 11 after sealing, and avoiding interference between adjacent connecting shells 11.

[0043] As a further implementation scheme of the above invention: the top and bottom of the inner side of the connecting shell 11 are provided with limiting blocks 14 located on both sides of the isolation pad 132, and a number of supporting frames 138 are embedded in the isolation pad 132. A number of supporting frames 138 are arranged in the isolation pad 132 to give the isolation pad 132 a certain strength. At the same time, the expanded isolation pad 132 is limited by the limiting blocks 14 to avoid a large movement of the compressed position of the isolation pad 132 when steam is introduced into the connecting shell 11.

[0044] As a further embodiment of the above invention: one end of the pyrolysis main air inlet pipe 6 away from the steam transfer box 5 is fixedly connected to a plurality of pyrolysis air inlet manifolds 135, and the pyrolysis air inlet manifolds 135 are fixedly connected to the steam outlet hose 133. By setting the pyrolysis air inlet manifolds 135, the steam outlet hose 133 can be connected to the pyrolysis main air inlet pipe 6, ensuring that steam can pass into the steam outlet hose 133 and be discharged along the plurality of outlet holes 134, so that the steam can be discharged along multiple points, so that the activated carbon filter assembly 1 2 can be in full contact with the steam, and one end of the deployment main air intake pipe 8 away from the steam transfer box 5 is fixedly connected with a plurality of deployment air intake manifolds 137, and the deployment air intake manifolds 137 are fixedly connected with the deployment drive airbag 136. By setting the deployment air intake manifolds 137, the deployment main air intake pipe 8 can be connected with the deployment drive airbag 136, ensuring that steam can be introduced into the deployment drive airbag 136 for expansion, driving the isolation cushion 132 to be deployed, thereby realizing the isolation treatment of the activated carbon adsorption section 1.

[0045] As a further implementation scheme of the above invention: the steam exhaust pipe 9 is fixedly connected to the connecting shell 11, and the connection position is located at the rear end of the activated carbon filter assembly 12. After the steam flows through the activated carbon filter assembly 12 to thermally decompose the activated carbon in the activated carbon filter assembly 12, the pollutants desorbed from the steam-mixed activated carbon can be discharged along the steam exhaust pipe 9 for subsequent treatment. An electric butterfly valve 10 is provided near the outlet of the steam exhaust pipe 9. When the activated carbon is thermally decomposed, the electric butterfly valve 10 is in an open state, and when the exhaust gas is adsorbed, the electric butterfly valve 10 is in a closed state.

[0046] During specific implementation: when the activated carbon in the adsorption tower is saturated with adsorption and needs to be regenerated by pyrolysis, the electric butterfly valve 10 is opened, and the opening pressure of the pressure valve 7 is set to ensure that after the pressure valve 7 is opened, the gas pressure in the deployment main air intake pipe 8 is still sufficient to ensure that the deployment drive airbag 136 is inflated to drive the isolation cushion 132 to deploy; steam is introduced into the steam transfer box 5. Since the pressure valve 7 is provided on the pyrolysis main air intake pipe 6, when the pressure in the steam transfer box 5 is low, the steam first enters the deployment intake manifold 137 in the multiple activated carbon adsorption sections 1 and the auxiliary sealing section 2 along the deployment main air intake pipe 8, and is then conducted from the deployment intake manifold 137 to the installation back plate 131 Among the several deployment driving airbags 136 on one side, the several deployment driving airbags 136 are inflated to overcome the elastic force of the reset spring sheet 139, driving the isolation cushion 132 to deploy. After the isolation cushion 132 is deployed, the upper and lower sides and the end thereof are against the inner wall of the connection shell 11, and the several activated carbon adsorption sections 1 are isolated by the deployed isolation cushion 132. Several supporting skeletons 138 are arranged in the isolation cushion 132 to give the isolation cushion 132 a certain strength. At the same time, the deployed isolation cushion 132 is limited by the limiting block 14 to avoid a large movement of the compressed position of the isolation cushion 132 when steam is passed into the inside of the connection shell 11. After the inflation of 136 drives the sealing cushion 132 to unfold, the gas pressure inside the steam transfer box 5 continues to rise. After reaching the set opening pressure of the pressure valve 7, the pressure valve 7 opens and the steam enters the pyrolysis main intake pipe 6, and is conducted through a plurality of pyrolysis intake manifolds 135, and enters a plurality of steam outlet hoses 133 on the side of the activated carbon filter assembly 12 installed on the back plate 131 of each activated carbon adsorption section 1, and is discharged from a plurality of outlet holes 134 on the steam outlet hose 133, and the steam is sprayed toward the activated carbon filter assembly 12 along multiple points, so that the activated carbon at each location in the activated carbon filter assembly 12 can fully contact with the steam, thereby increasing the adsorption on the activated carbon. Desorption effect of pollutants; since several activated carbon adsorption sections 1 are independently sealed by the unfolded sealing cushion 132, after the steam flows through the activated carbon filter component 12 to pyrolyze the activated carbon in the activated carbon filter component 12, the steam is mixed with the pollutants desorbed from the activated carbon and discharged along the steam exhaust pipe 9 for subsequent treatment; after the pyrolysis of the activated carbon is completed, the steam transfer box 5 stops the steam supply, the unfolded driving airbag 136 loses pressure, and the sealing cushion 132 folds and shrinks under the elastic force of the reset spring sheet 139, thereby releasing the sealing state of several activated carbon adsorption sections 1 and reconnecting several activated carbon adsorption sections 1, so as to facilitate the subsequent adsorption treatment of the exhaust gas again.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A VOCs removal device for VOCs waste gas treatment technology, comprising a mounting base and an adsorption tower disposed on top of the mounting base, characterized in that: The adsorption tower comprises a fixedly connected auxiliary sealing section (2), an air inlet end (3), an exhaust end (4), and a plurality of activated carbon adsorption sections (1); a steam transfer box (5) is fixedly installed on the front of the activated carbon adsorption section (1); a pyrolysis main air inlet pipe (6) and an expansion main air inlet pipe (8) are fixedly connected to the steam transfer box (5); a pressure valve (7) is provided at the contact position between the pyrolysis main air inlet pipe (6) and the steam transfer box (5); and steam exhaust pipes (9) are provided on the tops of the plurality of activated carbon adsorption sections (1); The activated carbon adsorption section (1) comprises a connecting shell (11), and an activated carbon filter assembly (12) and a sealed air intake assembly (13) located at the front end of the activated carbon filter assembly (12) are arranged in the connecting shell (11); The isolation air intake assembly (13) comprises a mounting back plate (131) and an isolation cushion (132) fixedly connected to the mounting back plate (131); a plurality of steam outlet hoses (133) are provided on one side of the isolation cushion (132), and a plurality of deployment drive air bags (136) are provided on the other side; the steam outlet hoses (133) are connected to the pyrolysis main air intake pipe (6), and the deployment drive air bags (136) are connected to the deployment main air intake pipe (8); a plurality of air outlet holes (134) are provided on the steam outlet hose (133); a plurality of reset spring sheets (139) are embedded in the isolation cushion (132), and the isolation cushion (132) can be folded and contracted under the elastic force of the reset spring sheets (139).

2. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The ends of the activated carbon adsorption section (1), the auxiliary sealing section (2), the air inlet end head (3) and the exhaust end head (4) are all provided with connecting flanges, and the auxiliary sealing section (2) is located between the exhaust end head (4) and the rear end of the activated carbon adsorption section (1).

3. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The auxiliary sealing section (2) is provided with a sealing air intake assembly (13). Unlike the sealing air intake assembly (13) in the activated carbon adsorption section (1), the sealing air intake assembly (13) in the auxiliary sealing section (2) is not provided with a steam outlet hose (133).

4. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The activated carbon filter assembly (12) comprises a placement frame (121), the front and rear ends of the placement frame (121) are fixedly mounted with metal mesh plates (123), the interior of the placement frame (121) is provided with crisscrossing partition plates (122), and the interior of the placement frame (121) is filled with activated carbon.

5. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The mounting back plate (131) is fixedly mounted on a side of the connection shell (11) close to the steam transfer box (5), and a positioning baffle (1310) cooperating with the isolation cushion (132) is provided on the mounting back plate (131).

6. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The isolation cushion (132) is an accordion-shaped structure as a whole, and the top of the isolation cushion (132) abuts against the inner side of the top of the connection shell (11), and the bottom abuts against the inner bottom of the connection shell (11).

7. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The top and bottom of the inner side of the connecting shell (11) are both provided with limiting blocks (14) located on both sides of the isolation cushion (132), and a plurality of supporting frames (138) are embedded in the isolation cushion (132).

8. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: One end of the pyrolysis main air intake pipe (6) away from the steam transfer box (5) is fixedly connected to a plurality of pyrolysis air intake manifolds (135), and the pyrolysis air intake manifolds (135) are fixedly connected to the steam outlet hose (133). One end of the deployment main air intake pipe (8) away from the steam transfer box (5) is fixedly connected to a plurality of deployment air intake manifolds (137), and the deployment air intake manifolds (137) are fixedly connected to the deployment drive airbag (136).

9. The VOCs removal device for VOCs waste gas treatment technology according to claim 1, characterized in that: The steam exhaust pipe (9) is fixedly connected to the connecting shell (11), and the connection position is located at the rear end of the activated carbon filter assembly (12). An electric butterfly valve (10) is provided on the steam exhaust pipe (9) near the outlet.

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