A multi-stage parallel wheel type adsorption column

Abstract

The application discloses a multi-stage parallel wheel type adsorption tower, which comprises a driving mechanism, a driving shaft, adsorption rotating wheels, adsorption channels, desorption channels and cooling channels; a plurality of adsorption rotating wheels are equidistantly assembled on the driving shaft along the axial direction of the driving shaft, and the driving mechanism drives the driving shaft to rotate; the adsorption rotating wheels are sequentially divided into adsorption zones, desorption zones and cooling zones along the rotating direction of the adsorption rotating wheels, and the proportion of the adsorption zones is greater than 50%; the adsorption channels are used for feeding raw flue gas into the adsorption zones and discharging purified gas after adsorption; the desorption channels are used for feeding heating gas for desorption into the desorption zones and discharging rich gas after desorption; and the cooling channels are used for feeding cooling gas into the cooling zones and discharging flue gas after cooling. Through the parallel synchronous operation of the multiple adsorption rotating wheels, the branch type channel design is matched, uniform distribution of flue gas is ensured, the adsorption, desorption and cooling processes do not interfere with each other, the diameter of a single rotating wheel is reduced, and the problems of large diameter and high resistance of the rotating wheel under large flue gas volume are solved.

Description

Technical Field

[0001] This invention belongs to the field of adsorption rotor technology, specifically relating to a multi-stage parallel wheel adsorption tower. Background Technology

[0002] In fields such as industrial waste gas treatment, volatile organic compound (VOC) recovery, and air purification, single-rotor adsorption towers are widely used in various scenarios requiring the adsorption and separation of target components in fluids due to their advantages such as compact structure, high continuous operation efficiency, and small footprint. The core component of a conventional single-rotor adsorption tower is the adsorption rotor, which is filled with adsorbent material. Through the slow rotation of the rotor, the adsorption and desorption zones alternate, thereby completing a continuous adsorption and regeneration cycle, meeting the process requirements of continuous processing in industrial production.

[0003] With the expansion of industrial scale and the surge in flue gas emissions, large flue gas volumes place higher demands on the processing capacity of single-rotor adsorption towers. Existing solutions involve increasing the rotor radius and thickness of the single-rotor adsorption tower. However, increasing the radius poses significant challenges to the rotor arrangement and overall structural strength. Furthermore, increased volume means increased maintenance difficulty, and increased thickness increases the operating resistance of the equipment, thus limiting its application scenarios.

[0004] Therefore, how to solve the problems caused by the large size of existing single-rotor adsorption towers for large flue gas volumes, which leads to difficulties in rotor arrangement, affects the overall structural strength, increases maintenance difficulty, increases equipment operating resistance, and limits application scenarios, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a multi-stage parallel wheel adsorption tower that addresses the shortcomings of the prior art. By operating multiple adsorption rotors in parallel and synchronously, and with a branched channel design, it ensures uniform distribution of flue gas, and that the adsorption, desorption, and cooling processes do not interfere with each other. It also reduces the diameter of a single rotor, thus solving the technical problems of existing single-rotor adsorption towers with large flue gas volumes, such as large size, difficult layout, compromised structural strength, high maintenance difficulty, and high operating resistance.

[0006] The present invention adopts the following technical solution: a multi-stage parallel wheel adsorption tower, including a driving mechanism, a driving shaft, an adsorption wheel, an adsorption channel, a desorption channel and a cooling channel; The drive shaft is equipped with multiple adsorption wheels that are equally spaced along its axial direction to prevent rotation, and the drive mechanism drives the drive shaft to rotate. The adsorption rotor is divided into an adsorption zone, a desorption zone, and a cooling zone along its rotation direction, with the adsorption zone accounting for more than 50%. The adsorption channel is used to introduce the original flue gas into the adsorption zone and discharge the purified gas after adsorption. The desorption channel is used to introduce desorption heating gas into the desorption zone and to discharge the desorbed rich gas. The cooling channel is used to introduce cooling gas into the cooling zone and to discharge cooled flue gas.

[0007] Preferably, the adsorption channel includes a raw flue gas inlet channel and a raw flue gas exhaust channel. The raw flue gas inlet channel is used to introduce raw flue gas into the adsorption zone, and the raw flue gas exhaust channel is used to discharge the purified gas after adsorption.

[0008] Preferably, a raw flue gas inlet branch is provided on the raw flue gas inlet channel corresponding to the air inlet side of the adsorption zone of each adsorption wheel, and the raw flue gas inlet branch respectively introduces raw flue gas into the corresponding adsorption zone. The original flue gas exhaust channel is provided with an original flue gas exhaust branch corresponding to the exhaust side position of the adsorption zone of each adsorption rotor, and the purified gas of the adsorption zone is discharged through the corresponding original flue gas exhaust branch.

[0009] Preferably, the diameter of each of the adsorption inlet branches and the diameter of each of the adsorption exhaust branches are the same.

[0010] Preferably, the desorption channel includes a desorption inlet channel and a desorption outlet channel. The desorption inlet channel is used to introduce desorption heating gas into the desorption zone, and the desorption outlet channel is used to discharge the desorbed rich gas.

[0011] Preferably, a desorption air inlet branch is provided on the desorption air inlet channel corresponding to the air inlet side of the desorption zone of each adsorption rotor, and the desorption air inlet branch respectively introduces desorption heating gas into the corresponding desorption zone. The desorption exhaust channel is provided with a desorption exhaust branch corresponding to the exhaust side position of the desorption zone of each adsorption rotor. The rich gas after desorption in the desorption zone is discharged through the corresponding desorption exhaust branch.

[0012] Preferably, the diameter of each of the desorption intake branches is the same as that of each of the desorption exhaust branches.

[0013] Preferably, the cooling channel includes a cooling air intake channel and a cooling exhaust channel, wherein the cooling air intake channel is used to introduce cooling gas into the cooling zone, and the cooling exhaust channel is used to discharge the cooled gas.

[0014] Preferably, a cooling air intake branch is provided on the cooling air intake channel corresponding to the air intake side of the cooling zone of each adsorption rotor, and the cooling air intake branch respectively introduces cooling gas into the corresponding cooling zone; The cooling exhaust channel is provided with a cooling exhaust branch corresponding to the exhaust side of the cooling zone of each adsorption rotor. The cooled flue gas in the cooling zone is discharged through the corresponding cooling exhaust branch.

[0015] Preferably, the diameter of each cooling intake branch is the same as that of each cooling exhaust branch.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: By assembling multiple adsorption rotors at equal intervals along the axial direction on the drive shaft, replacing the conventional solution of increasing the radius and thickness of a single rotor in a single-rotor adsorption tower, this effectively solves the problems of difficult layout, insufficient overall structural strength, and increased maintenance difficulty caused by increasing the radius of a single rotor under large flue gas volume conditions, as well as the problems of increased equipment operating resistance and limited application scenarios caused by increased thickness. Multiple adsorption rotors rotate synchronously, achieving continuous circulation of adsorption, desorption, and cooling, with the adsorption zone accounting for more than 50%, ensuring sufficient continuous processing capacity under large flue gas volumes.

[0017] Furthermore, the adsorption channel is divided into a raw flue gas inlet channel and a raw flue gas exhaust channel, clearly defining the flow direction of the raw flue gas and avoiding flue gas backflow or mixing that could affect the adsorption effect.

[0018] Furthermore, each adsorption rotor is equipped with a raw flue gas inlet branch and a raw flue gas exhaust branch, ensuring that the raw flue gas is evenly distributed to the adsorption zone of each adsorption rotor. The purified gas from each adsorption rotor can also be discharged independently, ensuring a uniform adsorption load across multiple adsorption rotors, fully utilizing the adsorption efficiency of each rotor, and improving overall treatment efficiency. Simultaneously, the branch structure facilitates individual maintenance of the channel corresponding to a specific rotor, reducing maintenance difficulty and preventing a single channel failure from affecting the overall equipment operation.

[0019] Furthermore, the same pipe diameter is used for each adsorption inlet branch and adsorption exhaust branch, which ensures that the intake and exhaust volumes of each adsorption rotor are consistent, avoiding uneven flue gas flow caused by differences in branch pipe diameters, ensuring uniform adsorption effect of multiple adsorption rotors, and improving the stability and reliability of adsorption treatment under large flue gas volumes.

[0020] Furthermore, the desorption channel is divided into a desorption inlet channel and a desorption exhaust channel, clearly defining the entry and exit paths of the heating gas used for desorption. This ensures that the desorption process and the adsorption process do not interfere with each other, guaranteeing smooth flow of the heating gas used for desorption, improving desorption efficiency, and enabling the adsorption rotor to regenerate quickly.

[0021] Furthermore, desorption inlet and exhaust branches are set up on the desorption inlet and exhaust channels corresponding to each adsorption rotor. This ensures that the heating gas used for desorption is evenly distributed to the desorption zone of each adsorption rotor, and the desorbed flue gas can be discharged independently. This ensures that each adsorption rotor desorbs fully and regenerates consistently, avoiding a decrease in adsorption capacity due to uneven desorption. At the same time, the branch structure facilitates individual inspection and maintenance of the desorption channel of a specific rotor, improving the convenience of operation and maintenance and ensuring continuous operation of the entire equipment.

[0022] Furthermore, the pipe diameters of each desorption inlet branch and desorption exhaust branch are the same, which ensures that the flow rate of the heating gas for desorption is consistent for each adsorption rotor, ensuring uniform desorption effect, making the adsorption capacity of each adsorption rotor uniform after regeneration, and improving the overall processing stability of the equipment.

[0023] Furthermore, the cooling channel is divided into a cooling inlet channel and a cooling exhaust channel, clearly defining the entry and exit paths of the cooling gas. This ensures the cooling process proceeds in an orderly manner, rapidly reducing the temperature of the adsorption rotor after desorption, allowing it to quickly recover its adsorption performance, and improving adsorption efficiency and the equipment's continuous operation capability. Simultaneously, the independent cooling channel prevents the cooling gas from mixing with the raw flue gas and the heating gas used for desorption, ensuring the stability of each process and reducing equipment operating resistance.

[0024] Furthermore, cooling intake and exhaust branches are set on the cooling intake and exhaust channels for each adsorption rotor, so that the cooling gas can be evenly distributed to the cooling zone of each adsorption rotor, ensuring that each rotor is cooled evenly and at a consistent temperature, quickly restoring its adsorption capacity, and avoiding differences in adsorption efficiency caused by uneven cooling.

[0025] Furthermore, the cooling inlet and cooling exhaust branches have the same pipe diameter, which ensures that the cooling gas flow rate of each adsorption rotor is consistent, ensuring uniform cooling effect and making the adsorption performance of each rotor uniform after regeneration, thereby improving the stability and reliability of the equipment under large flue gas volume.

[0026] In summary, the multi-stage parallel wheel adsorption tower of this invention, through the parallel and synchronous operation of multiple adsorption rotors and a branched channel design, ensures uniform distribution of flue gas, prevents interference between adsorption, desorption, and cooling processes, and maximizes the adsorption zone ratio, thus guaranteeing continuous and stable treatment under large flue gas volumes. Simultaneously, it reduces the difficulty of equipment manufacturing and maintenance, improves operational reliability and adaptability, balances treatment efficiency and practicality, and is suitable for various industrial waste gas treatment scenarios.

[0027] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the following description of the relative embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of a multi-stage parallel wheel-type adsorption tower according to the present invention.

[0030] The components are as follows: 1. Drive mechanism; 11. Drive motor; 12. Drive belt; 2. Drive shaft; 3. Adsorption wheel; 31. Adsorption zone; 32. Desorption zone; 33. Cooling zone; 4. Adsorption channel; 41. Adsorption inlet channel; 42. Adsorption exhaust channel; 43. Raw flue gas inlet branch; 44. Raw flue gas exhaust branch; 5. Desorption channel; 51. Desorption inlet channel; 52. Desorption exhaust channel; 53. Desorption inlet branch; 54. Desorption exhaust branch; 6. Cooling channel; 61. Cooling inlet channel; 62. Cooling exhaust channel; 63. Cooling inlet branch; 64. Cooling exhaust branch. Detailed Implementation

[0031] The technical solutions of 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, not all, of the embodiments of the present invention. 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.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "one side," "one end," and "one side," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0037] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0038] This invention provides a multi-stage parallel wheel adsorption tower. Through the synchronous operation of multiple adsorption rotors in parallel, coupled with a branched channel design, it ensures uniform distribution of flue gas, and that the adsorption, desorption, and cooling processes do not interfere with each other. The high proportion of the adsorption zone guarantees continuous and stable treatment even with large volumes of flue gas. Simultaneously, it reduces the difficulty of equipment manufacturing and maintenance, improves operational reliability and adaptability, and balances treatment efficiency with practicality, making it suitable for various industrial waste gas treatment scenarios.

[0039] Please see Figure 1 As shown, the present invention provides a multi-stage parallel wheel adsorption tower, comprising a drive mechanism 1, a drive shaft 2, an adsorption wheel 3, an adsorption channel 4, a desorption channel 5, and a cooling channel 6.

[0040] Multiple adsorption wheels 3 are mounted on the drive shaft 2 at equal intervals along its axial direction to prevent rotation. The multiple adsorption wheels 3 are synchronously rotated by the drive shaft 2. The drive mechanism 1 drives the drive shaft 2 to rotate.

[0041] Specifically, in this embodiment, the drive mechanism 1 is a belt-driven transmission mechanism, which includes a drive motor 11 and a drive belt 12. The drive motor 11 drives the drive shaft 2 to rotate via the drive belt 12. The specific arrangement and selection of the belt-driven transmission mechanism are common knowledge known to those skilled in the art, and will not be described in detail here.

[0042] The adsorption rotor 3 is divided into an adsorption zone 31, a desorption zone 32 and a cooling zone 33 along its rotation direction, and the adsorption zone 31 accounts for more than 50%.

[0043] In this embodiment, adsorption channel 4 is used to introduce raw flue gas into adsorption zone 31 and discharge purified gas after adsorption. Desorption channel 5 is used to introduce desorption heating gas into desorption zone 32 and discharge rich gas after desorption. Rich gas is gas rich in pollutants. Cooling channel 6 is used to introduce cooling gas into cooling zone 33 and discharge cooled flue gas.

[0044] In practical use, the raw flue gas is introduced into the inlet side of the adsorption zone 31 for adsorption, and the clean flue gas is discharged from the exhaust side of the adsorption zone 31 after adsorption. After adsorption, the adsorption rotor 3 rotates to the desorption zone 32, and the desorption heating gas is introduced into the desorption zone 32 to desorb the pollutants or CO2 adsorbed on the adsorption rotor 3. The desorbed pollutants or CO2 are discharged outward with the desorbed rich gas discharged from the exhaust side of the desorption zone 32, thus completing the desorption process.

[0045] After desorption, the adsorption rotor 3 rotates to the cooling zone 33. Since the temperature of the heating gas used for desorption is higher than that of the adsorption zone 31, cooling gas is introduced into the inlet side of the cooling zone 33 to cool the adsorption rotor 3 to a suitable adsorption temperature, ensuring the effective execution of subsequent adsorption cycles. The cooled gas is discharged from the exhaust side of the cooling zone 33. This completes the cycle of adsorption, desorption, and cooling of the adsorption rotor 3.

[0046] By utilizing the above configuration, multiple adsorption rotors 3 are installed on the drive shaft 2 at equal intervals along the axial direction to prevent rotation, replacing the conventional solution of increasing the radius and thickness of a single rotor in a single-rotor adsorption tower. This effectively solves the problems of difficult layout, insufficient overall structural strength, and increased maintenance difficulty caused by increasing the radius of a single rotor under large flue gas volume conditions, as well as the problems of increased equipment operating resistance and limited application scenarios caused by increased thickness. Multiple adsorption rotors 3 rotate synchronously, achieving continuous circulation of adsorption, desorption, and cooling. Furthermore, the adsorption zone 31 accounts for more than 50%, fully ensuring continuous processing capacity under large flue gas volumes.

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of 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, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0048] Please see Figure 1 As shown, in a multi-stage parallel wheel-type adsorption tower of the present invention, the adsorption channel 4 includes a raw flue gas inlet channel and a raw flue gas exhaust channel. The raw flue gas inlet channel is used to introduce raw flue gas into the inlet side of the adsorption zone 31. The raw flue gas exhaust channel is arranged on the exhaust side of the adsorption zone 31 and is used to discharge the purified gas after adsorption. Dividing the adsorption channel 4 into a raw flue gas inlet channel and a raw flue gas exhaust channel clearly defines the flow direction of the raw flue gas, avoiding flue gas backflow or mixing that could affect the adsorption effect.

[0049] Specifically, such as Figure 1 As shown, a raw flue gas inlet branch 43 is provided on the raw flue gas inlet channel corresponding to the inlet side of the adsorption zone 31 of each adsorption rotor 3. The raw flue gas inlet branch 43 respectively introduces raw flue gas into the inlet side of the corresponding adsorption zone 31.

[0050] The original flue gas exhaust channel is provided with an original flue gas exhaust branch 44 corresponding to the exhaust side position of the adsorption zone 31 of each adsorption rotor 3. The purified gas from each adsorption zone 31 is collected through the corresponding original flue gas exhaust branch 44 and discharged outward through the original flue gas exhaust channel.

[0051] Each adsorption rotor 3 is equipped with a raw flue gas inlet branch 43 and a raw flue gas exhaust branch 44, which allows the raw flue gas to be evenly distributed to the adsorption zone 31 of each adsorption rotor 3. The purified gas from each adsorption rotor 3 can also be discharged independently, ensuring that the adsorption load of multiple adsorption rotors 3 is uniform, giving full play to the adsorption efficiency of each rotor, and improving the overall treatment efficiency. At the same time, the branch structure facilitates the individual maintenance of the channel corresponding to a certain rotor, reducing maintenance difficulty and preventing the failure of a single channel from affecting the operation of the entire equipment.

[0052] Preferably, in this embodiment, the pipe diameters of each adsorption inlet branch and each adsorption exhaust branch are the same. Using adsorption inlet and exhaust branches with the same pipe diameter ensures that the intake and exhaust volumes of each adsorption rotor 3 are consistent, avoiding uneven flue gas flow caused by differences in branch pipe diameters, ensuring uniform adsorption effects across multiple adsorption rotors 3, and improving the stability and reliability of adsorption treatment under large flue gas volumes.

[0053] Preferably, in this embodiment, the desorption channel 5 includes a desorption inlet channel 51 and a desorption outlet channel 52. The desorption inlet channel 51 is used to introduce desorption heating gas into the inlet side of the desorption zone 32, and the desorption outlet channel 52 is used to discharge the desorbed gas. Dividing the desorption channel 5 into the desorption inlet channel 51 and the desorption outlet channel 52 clearly defines the inlet and outlet paths of the desorption heating gas, ensuring that the desorption process and the adsorption process do not interfere with each other, guaranteeing smooth flow of the desorption heating gas, improving desorption efficiency, and enabling rapid regeneration of the adsorption rotor 3.

[0054] Specifically, in this embodiment, such as Figure 1 As shown, a desorption inlet branch 53 is provided on the desorption inlet channel 51 corresponding to the inlet side of the desorption zone 32 of each adsorption rotor 3. The desorption inlet branch 53 respectively introduces desorption heating gas to the inlet side of the corresponding desorption zone 32.

[0055] The desorption exhaust channel 52 is provided with a desorption exhaust branch 54 corresponding to the exhaust side position of the desorption zone 32 of each adsorption rotor 3. The desorbed rich gas from each desorption zone 32 is collected through the corresponding desorption exhaust branch 54 and discharged outward through the desorption exhaust channel 52.

[0056] Desorption inlet branch 53 and desorption exhaust branch 54 are provided on the desorption inlet channel 51 and exhaust channel respectively for each adsorption rotor 3. This allows the heating gas for desorption to be evenly distributed to the desorption zone 32 of each adsorption rotor 3, and the desorbed flue gas can be discharged independently. This ensures that each adsorption rotor 3 desorbs fully and regenerates consistently, avoiding a decrease in adsorption capacity due to uneven desorption. At the same time, the branch structure facilitates the individual inspection and maintenance of the desorption channel 5 of a specific rotor, improving the convenience of operation and maintenance and ensuring the continuous operation of the entire equipment.

[0057] Preferably, in this embodiment, the diameters of each desorption inlet branch 53 and each desorption exhaust branch 54 are the same. Using desorption inlet branches 53 and desorption exhaust branches 54 with the same diameter ensures that the flow rate of the desorption heating gas for each adsorption rotor 3 is consistent, ensuring uniform desorption effect, making the adsorption capacity of each adsorption rotor 3 uniform after regeneration, and improving the overall processing stability of the equipment.

[0058] Preferably, in this embodiment, the cooling channel 6 includes a cooling air intake channel 61 and a cooling exhaust channel 62. The cooling air intake channel 61 is used to introduce cooling gas into the cooling zone 33, and the cooling exhaust channel 62 is used to discharge the cooled gas.

[0059] The cooling channel 6 is divided into a cooling inlet channel 61 and a cooling exhaust channel 62, clearly defining the entry and exit paths of the cooling gas. This ensures an orderly cooling process, rapidly reducing the temperature of the adsorption rotor 3 after desorption, allowing it to quickly recover its adsorption performance, and improving adsorption efficiency and continuous operation capability. Simultaneously, the independent cooling channel 6 prevents the cooling gas from mixing with the original flue gas and the heating gas used for desorption, ensuring the stability of each process and reducing equipment operating resistance.

[0060] Specifically, in this embodiment, a cooling air intake branch 63 is provided on the cooling air intake channel 61 corresponding to the air intake side of the cooling zone 33 of each adsorption rotor 3. Each cooling air intake branch 63 introduces cooling gas into the air intake side of the corresponding cooling zone 33.

[0061] The cooling exhaust channel 62 is provided with a cooling exhaust branch 64 corresponding to the exhaust side position of the cooling zone 33 of each adsorption rotor 3. The cooled flue gas from each cooling zone 33 is collected through the corresponding cooling exhaust branch 64 and discharged into the cooling exhaust channel 62.

[0062] Cooling intake branch 63 and exhaust branch are set on the cooling intake channel 61 and exhaust channel respectively for each adsorption rotor 3, so that the cooling gas can be evenly distributed to the cooling zone 33 of each adsorption rotor 3, ensuring that each rotor is cooled evenly and at a consistent temperature, quickly restoring adsorption capacity and avoiding differences in adsorption efficiency caused by uneven cooling.

[0063] Specifically, in this embodiment, the cooling inlet branches 63 and cooling exhaust branches 64 have the same pipe diameter. The consistent pipe diameter of the cooling inlet branches 63 and cooling exhaust branches 64 ensures a consistent cooling gas flow rate for each adsorption rotor 3, guaranteeing uniform cooling performance and ensuring consistent adsorption performance after regeneration of each rotor, thereby improving the stability and reliability of the equipment under large flue gas volumes.

[0064] Preferably, in this embodiment, the proportions of each zone of the adsorption rotor 3 are as follows: adsorption zone 31 accounts for 50%, desorption zone 32 accounts for 25%, and cooling zone 33 accounts for 25%.

[0065] In other embodiments, the proportions of each zone of the adsorption rotor 3 may be as follows: adsorption zone 31 accounts for 60%, desorption zone 32 accounts for 20%, and cooling zone 33 accounts for 20%.

[0066] In other embodiments, the proportions of each zone of the adsorption rotor 3 may also be: adsorption zone 31 accounts for 70%, desorption zone 32 accounts for 15%, and cooling zone 33 accounts for 15%.

[0067] The process of using a multi-stage parallel wheel-type adsorption tower according to the present invention is as follows: The drive mechanism 1 drives the drive shaft 2 to rotate, and the drive shaft 2 drives each adsorption wheel 3 to rotate synchronously.

[0068] The raw flue gas to be desorbed is injected through the adsorption inlet channel 41. The raw flue gas is injected into the corresponding adsorption zone 31 through each raw flue gas inlet branch 43. While the adsorption rotor 3 is rotating, it adsorbs pollutants or CO2 in the raw flue gas. Depending on the adsorption material, the adsorption zone can adsorb different components. The purified gas obtained after adsorption is then collected from the raw flue gas exhaust branch 44 on the exhaust side of the adsorption zone 31 and discharged outward through the adsorption exhaust channel 42.

[0069] After adsorption, the adsorption rotor 3 rotates to the desorption zone 32, where desorption heating gas is injected through the desorption inlet channel 51. The cost of the desorption heating gas is common knowledge known to those skilled in the art and will not be elaborated upon here. The desorption heating gas is injected into the inlet side of the corresponding desorption zone 32 through each desorption inlet branch 53 to desorb pollutants or CO2. The desorbed gas containing pollutants or CO2 is collected from the desorption exhaust branch 54 on the exhaust side of the desorption zone 32 and discharged through the desorption exhaust channel 52 for recycling.

[0070] After desorption, the adsorption rotor 3 continues to rotate to the cooling zone 33. Cooling gas is then injected into the cooling inlet channel 61. The specific cooling gas can be the desorbed clean flue gas, or other gases can be selected according to actual needs. This is common knowledge known to those skilled in the art and will not be elaborated further. The cooling gas is injected into the corresponding cooling zone 33 inlet side through each cooling inlet branch 63. The cooling gas cools the desorbed adsorption rotor 3, ensuring that it is cooled to the appropriate window temperature for adsorption in the adsorption zone 31. The cooled gas is discharged from the exhaust side of the cooling zone 33 and then collected through the cooling exhaust branch 64 into the cooling exhaust channel 62 for discharge.

[0071] In summary, the multi-stage parallel wheel adsorption tower of this invention, through the parallel and synchronous operation of multiple adsorption rotors 3 and a branched channel design, ensures uniform distribution of flue gas, and prevents interference between adsorption, desorption, and cooling processes. The high proportion of the adsorption zone 31 ensures continuous and stable treatment even with large volumes of flue gas. Simultaneously, the reduced diameter of a single rotor lowers the difficulty of equipment manufacturing and maintenance, improves operational reliability and adaptability, and balances treatment efficiency with practicality, making it suitable for various industrial waste gas treatment scenarios.

[0072] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A multi-stage parallel wheel-type adsorption tower, characterized in that, It includes a drive mechanism (1), a drive shaft (2), an adsorption wheel (3), an adsorption channel (4), a desorption channel (5), and a cooling channel (6). The drive shaft (2) is equipped with multiple adsorption wheels (3) at equal intervals along its axial direction to prevent rotation. The drive mechanism (1) drives the drive shaft (2) to rotate. The adsorption rotor (3) is divided into an adsorption zone (31), a desorption zone (32) and a cooling zone (33) in sequence along its rotation direction, and the adsorption zone (31) accounts for more than 50%; The adsorption channel (4) is used to introduce the original flue gas into the adsorption zone (31) and discharge the purified gas after adsorption. The desorption channel (5) is used to introduce desorption heating gas into the desorption zone (32) and discharge the desorbed rich gas; The cooling channel (6) is used to introduce cooling gas into the cooling zone (33) and discharge cooled flue gas.

2. The multi-stage parallel wheel adsorption tower according to claim 1, characterized in that, The adsorption channel (4) includes a raw flue gas inlet channel and a raw flue gas outlet channel. The raw flue gas inlet channel is used to introduce raw flue gas into the adsorption zone (31), and the raw flue gas outlet channel is used to discharge the purified gas after adsorption.

3. The multi-stage parallel wheel adsorption tower according to claim 2, characterized in that, The original flue gas inlet channel is provided with an original flue gas inlet branch (43) at the inlet side of the adsorption zone (31) of each adsorption wheel (3), and the original flue gas inlet branch (43) respectively introduces original flue gas into the corresponding adsorption zone (31). The original flue gas exhaust channel is provided with an original flue gas exhaust branch (44) at the exhaust side position of the adsorption zone (31) of each adsorption rotor (3), and the purified gas of the adsorption zone (31) is discharged through the corresponding original flue gas exhaust branch (44).

4. The multi-stage parallel wheel adsorption tower according to claim 3, characterized in that, The diameter of each of the adsorption inlet branches and the diameter of each of the adsorption exhaust branches are the same.

5. The multi-stage parallel wheel adsorption tower according to claim 1, characterized in that, The desorption channel (5) includes a desorption inlet channel (51) and a desorption outlet channel (52). The desorption inlet channel (51) is used to introduce desorption heating gas into the desorption zone (32), and the desorption outlet channel (52) is used to discharge the desorbed rich gas.

6. The multi-stage parallel wheel adsorption tower according to claim 5, characterized in that, The desorption inlet channel (51) is provided with a desorption inlet branch (53) at the inlet side of the desorption zone (32) of each adsorption rotor (3), and the desorption inlet branch (53) respectively introduces desorption heating gas into the corresponding desorption zone (32). The desorption exhaust channel (52) is provided with a desorption exhaust branch (54) corresponding to the exhaust side position of the desorption zone (32) of each adsorption rotor (3). The desorbed rich gas in the desorption zone (32) is discharged through the corresponding desorption exhaust branch (54).

7. The multi-stage parallel wheel adsorption tower according to claim 6, characterized in that, The diameter of each of the desorption intake branches (53) and the desorption exhaust branches (54) is the same.

8. The multi-stage parallel wheel adsorption tower according to claim 1, characterized in that, The cooling channel (6) includes a cooling air intake channel (61) and a cooling exhaust channel (62). The cooling air intake channel (61) is used to introduce cooling gas into the cooling zone (33), and the cooling exhaust channel (62) is used to discharge the cooled gas.

9. The multi-stage parallel wheel adsorption tower according to claim 8, characterized in that, The cooling air intake channel (61) is provided with a cooling air intake branch (63) at the air intake side of the cooling zone (33) of each adsorption wheel (3), and the cooling air intake branch (63) respectively introduces cooling gas into the corresponding cooling zone (33); The cooling exhaust channel (62) is provided with a cooling exhaust branch (64) at the exhaust side position of the cooling zone (33) of each adsorption rotor (3), and the cooled flue gas in the cooling zone (33) is discharged through the corresponding cooling exhaust branch (64).

10. The multi-stage parallel wheel adsorption tower according to claim 9, characterized in that, The diameter of each of the cooling intake branches (63) and the cooling exhaust branches (64) is the same.

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