Waste gas adsorption treatment device and adsorbent regeneration process

Abstract

The present invention provides a waste gas adsorption treatment device and an adsorbent regeneration process, which relates to the technical field of waste gas treatment devices, including a housing body and a combination part; an adsorbent is arranged in the housing body, a cooling chamber is formed between the combination part and the housing body, a cooling medium is arranged in the cooling chamber, and the cooling medium is used to reduce the ambient temperature of the adsorbent. Since a cooling chamber is formed between the combination part and the housing body, and a cooling medium is arranged in the cooling chamber, when the temperature of the organic waste gas or the overall ambient temperature exceeds the optimal adsorption temperature range of the adsorbent, the adsorbent can be cooled by the cooling medium, thereby balancing the high temperature environment of the adsorbent, which is of great significance for the adsorbent to exert the best adsorption efficiency, and ensures the purification capacity of the waste gas.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment devices, and in particular to a waste gas adsorption treatment device and an adsorbent regeneration process. Background Art

[0002] Volatile Organic Compounds (VOCs) are a type of gaseous pollutants that mainly come from fuel combustion, industrial waste gas, automobile exhaust and volatilization of chemical solvents.

[0003] VOCs contain a variety of carcinogens, which have a huge negative impact on human health and the environment; VOCs are often treated by adsorption treatment, in which the efficiency of the adsorbent has an important influence on the treatment of VOCs.

[0004] Adsorbents usually perform best within a certain temperature range. Industrial direct-emission VOCs, such as those discharged from chimneys, often have higher temperatures. Conventional adsorption treatment devices cannot balance the ambient temperature of the adsorbent and therefore cannot achieve good adsorption effects.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide a waste gas adsorption treatment device and a treatment process to alleviate the technical problem that the existing adsorption treatment device cannot balance the ambient temperature of the adsorbent.

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0008] The waste gas adsorption treatment device provided by the present invention comprises a containing body and a combination part;

[0009] An adsorbent is arranged in the accommodating body, a cooling chamber is formed between the combining portion and the accommodating body, a cooling medium is arranged in the cooling chamber, and the cooling medium is used to reduce the ambient temperature of the adsorbent.

[0010] Further, the combination part includes an outer combination box;

[0011] The outer combined box cover is arranged outside the accommodating body, the outer combined box is provided with a liquid inlet and a liquid outlet, and the cooling medium includes cooling water.

[0012] Furthermore, a first separation valve group is arranged in the accommodating body;

[0013] The first separation valve group divides the accommodating body into a primary reaction chamber and a secondary reaction chamber which are interconnected, and the adsorbent is disposed in both the primary reaction chamber and the secondary reaction chamber;

[0014] The primary reaction chamber is communicated with an air inlet pipe, and the secondary reaction chamber is communicated with an air outlet pipe.

[0015] Furthermore, the primary reaction chamber is divided into a first adsorption chamber and a first gas passage chamber by a first partition;

[0016] The adsorbent is arranged in the first adsorption chamber, and the secondary reaction chamber is connected with the first adsorption chamber or the first gas passage chamber through the first separation valve group;

[0017] A second separation valve group is provided between the air inlet pipe and the primary reaction chamber, and the air inlet pipe is communicated with the first adsorption chamber or the first gas passage chamber through the second separation valve group.

[0018] Furthermore, the secondary reaction chamber is divided into a second reaction chamber and a third reaction chamber by a third separation valve group;

[0019] The adsorbent is disposed in both the second reaction chamber and the third reaction chamber, and the second reaction chamber is connected to the first adsorption chamber or the first gas passage chamber through the first separation valve group;

[0020] The second reaction chamber is communicated with the third reaction chamber through the third separation valve group, and the third reaction chamber is communicated with the gas outlet pipe.

[0021] Furthermore, the second reaction chamber is divided into a second adsorption chamber and a second gas-transmitting chamber by a second partition plate, the adsorbent is arranged in the second adsorption chamber, and the third reaction chamber is connected with the second adsorption chamber or the second gas-transmitting chamber through the third separation valve group;

[0022] The third reaction chamber is divided into a third adsorption chamber and a third gas transition chamber by a third partition plate. The adsorbent is arranged in the third adsorption chamber. A fourth separation valve group is arranged between the gas outlet pipe and the third reaction chamber. The gas outlet pipe is connected with the third adsorption chamber or the third gas transition chamber through the fourth separation valve group.

[0023] Furthermore, the first separation valve group includes a two-way gate valve and a driving part;

[0024] The driving part is drivingly connected to the gate of the two-way gate valve.

[0025] Further, the processing device also includes a steam injection assembly;

[0026] The steam injection assembly includes a steam generator, a temperature rise controller and an injection part, wherein the injection part is buried in the adsorbent, the steam generator is connected to the injection part through a steam transmission pipe, and the injection part is used to inject high-temperature steam to the adsorbent, and the adsorbent is set as activated carbon fiber;

[0027] The temperature rise controller is arranged on the steam transmission pipe, and the temperature rise controller is used to measure the steam temperature in the steam transmission pipe and control the steam generation temperature of the steam generator accordingly.

[0028] Further, the processing device also includes a gas purge assembly;

[0029] The gas purge assembly is in communication with the injection portion, and the gas purge assembly blows cooling gas to the adsorbent through the injection portion.

[0030] The present invention provides an adsorbent regeneration process based on a waste gas adsorption treatment device, comprising: thermal desorption, in-situ activation and drying and cooling;

[0031] The thermal desorption comprises: heating the steam temperature to 100° C.-120° C. through a steam generator and spraying the steam on the activated carbon fiber through a spraying part for 5 min-15 min;

[0032] The in-situ activation comprises: raising the steam temperature to 100°C-120°C and continuously spraying the activated carbon fiber for 10min-20min;

[0033] The drying and cooling comprises: blowing cooling gas to the activated carbon fiber through a gas blowing component, blowing for 10 minutes to 30 minutes, and then allowing the activated carbon fiber to cool naturally to room temperature.

[0034] In combination with the above technical solutions, the beneficial effects achieved by the present invention are:

[0035] The waste gas adsorption treatment device provided by the present invention comprises a containing body and a combination part; an adsorbent is arranged in the containing body, a cooling chamber is formed between the combination part and the containing body, a cooling medium is arranged in the cooling chamber, and the cooling medium is used to reduce the ambient temperature of the adsorbent.

[0036] Since a cooling chamber is formed between the combination part and the accommodating body, and a cooling medium is arranged in the cooling chamber, when the temperature of the organic waste gas or the overall ambient temperature exceeds the optimal adsorption temperature range of the adsorbent, the adsorbent can be cooled by the cooling medium, thereby balancing the high temperature environment of the adsorbent, which is of great significance for the adsorbent to exert the best adsorption efficiency and ensure the purification ability of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the structure of an exhaust gas adsorption treatment device provided in an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of a partial structure of an exhaust gas adsorption treatment device provided in an embodiment of the present invention;

[0040] Figure 3 A schematic structural diagram of a first separation valve group in an exhaust gas adsorption treatment device provided in an embodiment of the present invention.

[0041] Icons: 100-container body; 110-adsorbent; 120-inlet pipe; 121-temperature monitor; 130-outlet pipe; 200-combination unit; 210-water storage tank; 220-power pump; 230-liquid inlet pipe; 240-liquid outlet pipe; 250-condensate pipe; 300-first separation valve group; 310-two-way plug valve; 311-gate; 312-drive screw; 313-valve housing; 320-drive unit; 400-primary reaction chamber; 410-first partition plate; 420-first adsorption chamber; 430-first A gas-transmitting chamber; 500-a secondary reaction chamber; 510-a second reaction chamber; 511-a second partition; 512-a second adsorption chamber; 513-a second gas-transmitting chamber; 520-a third reaction chamber; 521-a third partition; 522-a third adsorption chamber; 523-a third gas-transmitting chamber; 600-a second separating valve group; 610-a third separating valve group; 620-a fourth separating valve group; 700-a steam injection assembly; 710-a steam generator; 720-a temperature rise controller; 730-an injection unit; 800-a gas purge assembly. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as limiting the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] like Figure 1 As shown, this embodiment provides a waste gas adsorption treatment device, including a container body 100 and a combination part 200; an adsorbent 110 is arranged in the container body 100, and a cooling chamber is formed between the combination part 200 and the container body 100, and a cooling medium is arranged in the cooling chamber, and the cooling medium is used to reduce the ambient temperature of the adsorbent 110.

[0046] Specifically, the container body 100 can be set as a reaction box, a reaction tank or a reaction tower, and the adsorbent 110 can be set as an adsorption medium such as activated carbon particles or activated carbon fibers; the combination part 200 can be set as a complete box structure that is completely covered on the outside of the container body 100, and the cooling chamber is a sandwich space located between the container body 100 and the combination part 200; as an optional embodiment, the combination part 200 is arranged on one side, both sides or multiple side surfaces of the container body 100, but does not completely wrap the container body 100. For example, the combination part 200 is a frame structure formed by splicing multiple flat plates, and the frame structure and one side surface of the container body 100 form a closed cooling chamber.

[0047] The waste gas adsorption treatment device provided in this embodiment has a cooling chamber formed between the combination part 200 and the accommodating body 100, and a cooling medium is arranged in the cooling chamber. When the temperature of the organic waste gas or the overall ambient temperature exceeds the optimal adsorption temperature range of the adsorbent 110, the adsorbent 110 can be cooled by the cooling medium, thereby balancing the high temperature environment of the adsorbent 110, which is of great significance for the adsorbent 110 to exert the best adsorption efficiency and ensure the purification ability of the waste gas.

[0048] On the basis of the above embodiments, further, the combination part 200 in the waste gas adsorption treatment device provided in this embodiment includes an outer combination box body; the outer combination box body cover is arranged outside the accommodating body 100, and the outer combination box body is provided with a liquid inlet and a liquid outlet, and the cooling medium includes cooling water.

[0049] Specifically, the housing body 100 is preferably configured as an inner reaction box body in the shape of a rectangular parallelepiped, and the outer assembly box body is also configured as an outer box body in the shape of a rectangular parallelepiped. The outer assembly box body cover is arranged outside the inner reaction box body, and a connecting rod or a connecting frame is welded between the inner wall of the outer assembly box body and the outer wall of the housing body 100, so that the outer assembly box body and the housing body 100 are fixedly connected. The liquid inlet is arranged near the bottom of the outer assembly box body, and the liquid inlet is connected to the water storage tank 210 through the liquid inlet pipe 230, and the liquid inlet pipe 230 is provided with a power pump 220; the liquid outlet is arranged near the top of the outer assembly box body, and the liquid outlet is provided with a liquid outlet pipe 240, and the cooling water in the water storage tank 210 is pumped into the cooling chamber by the power pump 220, and discharged from the liquid outlet through the liquid outlet pipe 240, so that the cooling water circulates in the cooling chamber, and the cooling effect on the adsorbent 110 is better.

[0050] As an optional implementation manner of this embodiment, the outer combined box body is set to a "U" shape, and the "U"-shaped outer combined box body is sleeved on the containing body 100. The four inner side surfaces of the "U"-shaped outer combined box body are respectively attached to the front, back, left, and right four sides of the containing body 100 or to the top, bottom, front, and back four sides of the containing body 100. The remaining two sides of the containing body 100 are used for centralized arrangement of pipes connected to the containing body 100, and the arrangement of the pipes will also be more convenient.

[0051] Further, such as Figure 2 As shown, a first separating valve group 300 is arranged in the accommodating body 100; the first separating valve group 300 divides the accommodating body 100 into a primary reaction chamber 400 and a secondary reaction chamber 500 which are interconnected, and an adsorbent 110 is arranged in both the primary reaction chamber 400 and the secondary reaction chamber 500; the primary reaction chamber 400 is connected to the air inlet pipe 120, and the secondary reaction chamber 500 is connected to the air outlet pipe 130.

[0052] Specifically, the first separation valve group 300 can be set as a plurality of types of gate valves 311, the gate valve 311 is connected to the inner wall of the accommodating body 100, the primary reaction chamber 400 is located below the second reaction chamber 510, and the first separation valve group 300 controls the first reaction chamber to communicate with the second reaction chamber 510;

[0053] The air inlet pipe 120 is arranged at the bottom of the housing body 100, and the air outlet pipe 130 is arranged at the bottom of the housing body 100. The air inlet pipe 120 is connected in series with a temperature monitor 121, and a temperature threshold is preset in the temperature monitor 121. When the air inlet temperature exceeds the temperature threshold, the temperature monitor 121 emits a sound reminder to prompt the staff to turn on the cooling function of the adsorbent 110, so that the cooling water circulates in the cooling chamber. The exhaust gas output by the air inlet pipe 120 can be discharged from the air outlet pipe 130 after being adsorbed by the adsorbent 110 in the first reaction chamber and the adsorbent 110 in the second reaction chamber 510 in sequence.

[0054] Further, such as Figure 2 As shown, the primary reaction chamber 400 is divided into a first adsorption chamber 420 and a first gas transition chamber 430 by a first partition plate 410; an adsorbent 110 is provided in the first adsorption chamber 420, and the secondary reaction chamber 500 is connected with the first adsorption chamber 420 or the first gas transition chamber 430 through a first separation valve group 300; a second separation valve group 600 is provided between the air inlet pipe 120 and the primary reaction chamber 400, and the air inlet pipe 120 is connected with the first adsorption chamber 420 or the first gas transition chamber 430 through the second separation valve group 600.

[0055] Among them, Figure 3 As shown, the first separation valve assembly 300 includes a two-way gate valve 310 and a driving unit 320 ; the driving unit 320 is drivingly connected to the gate 311 of the two-way gate valve 310 .

[0056] Specifically, the two-way gate valve 310 includes a valve housing 313 and a two-way movable gate 311 that cooperates with the valve housing 313. The driving unit 320 is preferably configured as a servo drive motor. The servo drive motor is connected to the gate 311 through a transmission screw 312. The drive motor is used to drive the transmission screw 312 to rotate. The transmission screw 312 cooperates with the gate 311. The drive motor converts the rotation of the transmission screw 312 into a left and right reciprocating movement of the gate 311 to selectively open the left and right valve ports on the gate valve.

[0057] The structure of the second separation valve group 600 is the same as that of the first separation valve group 300. More specifically, the chamber surrounded by the inner wall of the first separation valve group 300, the second separation valve group 600 and the accommodating body 100 is the primary reaction chamber 400. The first partition plate 410 is sealedly connected to the valve housing 313 of the first separation valve group 300, the valve housing 313 of the second separation valve group 600 and the inner wall of the primary accommodating body 100. An air intake space is provided in the accommodating body 100 and at the lower part of the second separation valve group 600. The exhaust gas output by the air intake pipe 120 first enters the air intake space and then enters the first adsorption chamber 420 or the first gas passage chamber 430 through the second separation valve group 600.

[0058] Furthermore, the secondary reaction chamber 500 is divided into a second reaction chamber 510 and a third reaction chamber 520 by a third separating valve group 610; both the second reaction chamber 510 and the third reaction chamber 520 are provided with an adsorbent 110, and the second reaction chamber 510 is connected with the first adsorption chamber 420 or the first gas passage chamber 430 through the first separating valve group 300; the second reaction chamber 510 is connected with the third reaction chamber 520 through the third separating valve group 610, and the third reaction chamber 520 is connected with the gas outlet pipe 130.

[0059] Specifically, the structure of the third separation valve group 610 is the same as that of the first separation valve group 300, and will not be described in detail here. The second reaction chamber 510 is located below the third reaction chamber 520, and the third separation valve group 610 is used to control the communication between the second reaction chamber 510 and the third reaction chamber 520. When the gate plate 311 of the first separation valve group 300 moves to the right, the second reaction chamber 510 is connected to the first adsorption chamber 420 through the left valve port of the first separation valve group 300; when the gate plate 311 of the first separation valve group 300 moves to the left, the second reaction chamber 510 is connected to the first gas passage chamber 430 through the right valve port of the first separation valve group 300.

[0060] Further, such as Figure 2 As shown, the second reaction chamber 510 is divided into a second adsorption chamber 512 and a second gas transition chamber 513 by a second partition plate 511, and an adsorbent 110 is arranged in the second adsorption chamber 512. The third reaction chamber 520 is connected with the second adsorption chamber 512 or the second gas transition chamber 513 through a third separation valve group 610; the third reaction chamber 520 is divided into a third adsorption chamber 522 and a third gas transition chamber 523 by a third partition plate 521, and an adsorbent 110 is arranged in the third adsorption chamber 522. A fourth separation valve group 620 is arranged between the gas outlet pipe 130 and the third reaction chamber 520, and the gas outlet pipe 130 is connected with the third adsorption chamber 522 or the third gas transition chamber 523 through the fourth separation valve group 620.

[0061] Specifically, when the gate plate 311 of the third partition valve group 610 moves to the right, the left valve port is opened, so that the second air passage chamber 513 is communicated with the third adsorption chamber 522; when the gate plate 311 of the third partition valve group 610 moves to the left, the right valve port is opened, so that the second adsorption chamber 512 is communicated with the third air passage chamber 523. The structure of the fourth partition valve group 620 is the same as that of the first partition valve group 300. An air outlet space is provided in the accommodating body 100 and located at the upper part of the fourth partition valve group 620. The gas discharged from the third adsorption chamber 522 or the third air passage chamber 523 first enters the air outlet space through the fourth partition valve group 620, and then is discharged through the air outlet pipe 130.

[0062] In addition, the treatment device also includes a condensate pipe 250, which is connected to the first adsorption chamber 420, the second adsorption chamber 512 and the third adsorption chamber 522 respectively, and the condensate pipe 250 is connected to the water storage tank 210, so that the condensate in the first adsorption chamber 420, the second adsorption chamber 512 and the third adsorption chamber 522 can be discharged into the water storage tank 210 through the condensate pipe 250.

[0063] The waste gas adsorption treatment device provided in this embodiment has four operation modes, namely, a combination of the first adsorption chamber 420 and the second adsorption chamber 512, a combination of the first adsorption chamber 420 and the third adsorption chamber 522, a combination of the second adsorption chamber 512 and the third adsorption chamber 522, and a combination of the first adsorption chamber 420, the second adsorption chamber 512, the third adsorption chamber 522 and the fourth adsorption chamber. Any one of the above operation modes can be reasonably selected according to the treatment volume or pollution degree of the waste gas.

[0064] When the first adsorption chamber 420 and the second adsorption chamber 512 are combined, the gate plate 311 of the second separating valve group 600 moves to the right, the gate plate 311 of the first separating valve group 300 moves to the left, and the gate plate 311 of the third separating valve group 610 moves to the left. The exhaust gas first enters the first adsorption chamber 420 through the left valve port of the second separating valve group 600, and then enters the second adsorption chamber 512 through the right valve port of the first separating valve group 300, and then enters the third air passage chamber 523 through the right valve port of the third separating valve group 610, and is finally discharged through the fourth separating valve group 620.

[0065] When the first adsorption chamber 420 and the third adsorption chamber 522 are combined, the gate plate 311 of the second partition valve group 600 moves to the right, the gate plate 311 of the first partition valve group 300 moves to the right, and the gate plate 311 of the third partition valve group 610 moves to the right. The exhaust gas first enters the first adsorption chamber 420 through the left valve port of the second partition valve group 600, and then enters the second air passage chamber 513 through the left valve port of the first partition valve group 300, and then enters the third adsorption chamber 522 through the left valve port of the third partition valve group 610, and is finally discharged through the fourth partition valve group 620.

[0066] When the second adsorption chamber 512 and the third adsorption chamber 522 are combined, the gate plate 311 of the second separating valve group 600 moves to the left, the gate plate 311 of the first separating valve group 300 moves to the left, and the gate plate 311 of the third separating valve group 610 moves to the right. The exhaust gas first enters the first air passage chamber 430 through the right valve port of the second separating valve group 600, and then enters the second adsorption chamber 512 through the right valve port of the first separating valve group 300, and then enters the third adsorption chamber 522 through the left valve port of the third separating valve group 610, and is finally discharged through the fourth separating valve group 620.

[0067] When the first adsorption chamber 420, the second adsorption chamber 512 and the third adsorption chamber 522 are combined, the gate plate 311 of the second partition valve group 600 moves to the right, the gate plate 311 of the first partition valve group 300 moves to the left, and the gate plate 311 of the third partition valve group 610 moves to the right, and the exhaust gas first enters the first adsorption chamber 420 through the left valve port of the second partition valve group 600, and then enters the second adsorption chamber 512 through the right valve port of the first partition valve group 300, and then enters the third adsorption chamber 522 through the left valve port of the third partition valve group 610, and finally is discharged through the fourth partition valve group 620.

[0068] In addition, a fifth separation valve group and a fourth partition plate are also provided in the container body 100. The fifth separation valve group is provided above the fourth separation valve group. A fourth reaction chamber is formed between the fourth separation valve group, the fifth separation valve group and the inner wall of the container body 100. The fourth partition plate divides the fourth reaction chamber into a fourth adsorption chamber and a fourth gas-transmitting chamber. The third gas-transmitting chamber 523 is connected to the fourth adsorption chamber through the fifth separation valve group, and the third adsorption chamber 522 is connected to the fourth adsorption chamber or the fourth gas-transmitting chamber through the fifth valve group. Accordingly, other numbers of sixth separation valve groups and fifth partition plates may also be provided in the container body 100 to form a corresponding number of fifth adsorption chambers and fifth gas-transmitting chambers in the container body 100, so that the waste gas adsorption treatment device provided in this embodiment can combine more number of operation modes to meet the treatment requirements of waste gas of different volumes or pollution levels.

[0069] On the basis of the above embodiments, further, the waste gas adsorption treatment device provided in this embodiment also includes a steam injection assembly 700; the steam injection assembly 700 includes a steam generator 710, a temperature rise controller 720 and an injection part 730, the injection part 730 is buried in the adsorbent 110, the steam generator 710 is connected to the injection part 730 through a steam transmission pipe, the injection part 730 is used to spray high-temperature steam to the adsorbent 110, and the adsorbent 110 is set as activated carbon fiber; the temperature rise controller 720 is set on the steam transmission pipe, and the temperature rise controller 720 is used to measure the steam temperature in the steam transmission pipe and correspondingly control the steam generation temperature of the steam generator 710.

[0070] Specifically, each adsorption chamber is buried with an injection unit 730, which includes an injection conduit and a nozzle. The nozzle is provided in multiple numbers, and the multiple nozzles are arranged at intervals along the length direction of the injection conduit. The multiple nozzles are used to inject high-temperature steam into the adsorbent 110, so that the uniformity of steam injection is better. The temperature rise controller 720 is connected in series to the steam transmission pipe. The temperature rise controller 720 includes a temperature measuring element and a control element. The temperature rise controller 720 is connected to the steam generator 710 through a signal line. The temperature rise controller 720 is preset with a temperature threshold. The temperature rise controller 720 controls the temperature of steam generated by the steam generator 710 according to the measured actual steam temperature in the steam transmission pipe.

[0071] Furthermore, the processing device further includes a gas purge assembly 800 ; the gas purge assembly 800 is in communication with the injection portion 730 , and the gas purge assembly 800 blows cooling gas to the adsorbent 110 through the injection portion 730 .

[0072] Specifically, the gas purge assembly 800 is configured as an air compressor or a gas storage tank. The gas purge assembly 800 is connected to the injection part 730 through a gas pipe. After the adsorbent 110 is activated in situ by high-temperature steam, the gas purge assembly 800 blows cooling gas into the adsorbent 110 through the injection part 730. The diffusion of the cooling gas is more uniform, thereby improving the cooling rate of the adsorbent 110.

[0073] The exhaust gas adsorption treatment device provided in this embodiment realizes in-situ regeneration of activated carbon fiber by combining the steam generator 710, the temperature rise controller 720 and the injection unit 730. Compared with other adsorbents 110, the activated carbon fiber has lower regeneration temperature requirements, lower energy consumption and better safety. By setting the gas purge assembly 800, the cooling rate of the adsorbent 110 is fast, which correspondingly increases the in-situ regeneration speed of the activated carbon fiber.

[0074] On the basis of the above embodiments, further, the present embodiment provides a regeneration process of the adsorbent 110 based on the waste gas adsorption treatment device, including: thermal desorption, in-situ activation and drying and cooling; thermal desorption includes: heating the steam temperature to 100°C-120°C through the steam generator 710, and spraying it on the activated carbon fiber through the injection part 730, which lasts for 5min-15min; in-situ activation includes: raising the steam temperature to 100°C-120°C, and continuously spraying the activated carbon fiber for 10min-20min; drying and cooling includes: blowing cooling gas to the activated carbon fiber through the gas purge component 800, purge for 10min-30min, and then allowing the activated carbon fiber to cool naturally to room temperature.

[0075] Since the present application uses activated carbon fiber as an adsorbent, compared with activated carbon particles or other adsorbents, activated carbon fiber has a lower regeneration temperature requirement, low energy consumption, and is safer to use; the regeneration temperature of conventional activated carbon particles usually needs to reach above 700°C, which has high energy consumption and is prone to fire, and has poor safety. The activity of the activated carbon fiber is restored through the above-mentioned in-situ activation process, and combined with the drying and cooling process, the in-situ regeneration process of the activated carbon fiber is more perfect, the regeneration speed is fast, and it is convenient to use.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste gas adsorption treatment device, characterized in that: include: Accommodating the main body (100) and the combination part (200); An adsorbent is arranged in the accommodating body (100), a cooling chamber is formed between the combining portion (200) and the accommodating body (100), a cooling medium is arranged in the cooling chamber, and the cooling medium is used to reduce the temperature of the environment in which the adsorbent is located; It also includes a condensation water pipe (250), wherein the condensation water pipe (250) is respectively connected to the first adsorption chamber (420), the second adsorption chamber (512), and the third adsorption chamber (522), and the condensation water pipe (250) is connected to the water storage tank (210); A first separation valve group (300) is arranged in the accommodating body (100); The first separation valve assembly (300) divides the accommodating body (100) into a primary reaction chamber and a secondary reaction chamber that are interconnected, and the adsorbent is disposed in both the primary reaction chamber and the secondary reaction chamber; The primary reaction chamber is in communication with an air inlet pipe (120), and the secondary reaction chamber is in communication with an air outlet pipe (130); The primary reaction chamber is divided into a first adsorption chamber (420) and a first gas passage chamber (430) by a first partition plate (410); The first adsorption chamber (420) is provided with the adsorbent, and the secondary reaction chamber is connected to the first adsorption chamber (420) or the first gas passage chamber (430) via the first separation valve group (300); A second separation valve group (600) is provided between the air intake pipe (120) and the primary reaction chamber, and the air intake pipe (120) is connected to the first adsorption chamber (420) or the first gas passage chamber (430) through the second separation valve group (600); The secondary reaction chamber is divided into a second reaction chamber (510) and a third reaction chamber (520) by a third separation valve group (610); The adsorbent is disposed in both the second reaction chamber (510) and the third reaction chamber (520); the second reaction chamber (510) is connected to the first adsorption chamber (420) or the first gas passage chamber (430) via the first separation valve group (300); The second reaction chamber (510) is in communication with the third reaction chamber (520) via the third separation valve group (610), and the third reaction chamber (520) is in communication with the gas outlet pipe (130); The second reaction chamber (510) is divided into a second adsorption chamber (512) and a second gas-transmitting chamber (513) by a second partition plate (511); the adsorbent is arranged in the second adsorption chamber (512); and the third reaction chamber (520) is connected to the second adsorption chamber (512) or the second gas-transmitting chamber (513) through the third separation valve group (610); The third reaction chamber (520) is divided into a third adsorption chamber (522) and a third gas transition chamber (523) by a third partition plate (521); the adsorbent is arranged in the third adsorption chamber (522); a fourth separation valve group (620) is arranged between the gas outlet pipe (130) and the third reaction chamber (520); the gas outlet pipe (130) is connected to the third adsorption chamber (522) or the third gas transition chamber (523) through the fourth separation valve group (620); The first separation valve assembly (300) comprises a two-way gate valve (310) and a driving unit (320); The driving part (320) is drivingly connected to the gate of the two-way gate valve (310).

2. The exhaust gas adsorption treatment device according to claim 1, characterized in that: The assembly part (200) comprises an outer assembly box; The outer combined box cover is arranged outside the accommodating body (100); a liquid inlet and a liquid outlet are arranged on the outer combined box; and the cooling medium comprises cooling water.

3. The exhaust gas adsorption treatment device according to claim 1 or 2, characterized in that: The processing device also includes a steam injection assembly; The steam injection assembly comprises a steam generator (710), a temperature rise controller (720) and an injection part (730); the injection part (730) is buried in the adsorbent; the steam generator (710) is connected to the injection part (730) via a steam transmission pipe; the injection part (730) is used to inject high-temperature steam to the adsorbent; the adsorbent is configured as activated carbon fiber; The temperature rise controller (720) is arranged on the steam transmission pipe, and the temperature rise controller (720) is used to measure the steam temperature in the steam transmission pipe and control the steam generation temperature of the steam generator (710) accordingly.

4. The exhaust gas adsorption treatment device according to claim 3, characterized in that: The processing device also includes a gas purge assembly (800); The gas purge assembly (800) is in communication with the injection portion (730), and the gas purge assembly (800) blows cooling gas to the adsorbent through the injection portion (730).

5. The adsorbent regeneration process of the waste gas adsorption treatment device according to any one of claims 1 to 4, characterized in that: include: Thermal desorption, in-situ activation and drying and cooling; The thermal desorption comprises: heating the steam temperature to 100° C. to 120° C. through a steam generator (710), and spraying the steam onto the activated carbon fiber through a spraying part (730) for 5 min to 15 min; The in-situ activation comprises: raising the steam temperature to 100°C-120°C and continuously spraying the activated carbon fiber for 10min-20min; The drying and cooling comprises: blowing cooling gas to the activated carbon fibers through a gas blowing component (800), blowing for 10 minutes to 30 minutes, and then allowing the activated carbon fibers to cool naturally to room temperature.

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