Waste gas treatment equipment and method thereof

Abstract

The invention relates to the technical field of waste gas treatment, in particular to waste gas treatment equipment and a method thereof.The waste gas treatment equipment comprises an adsorption box, a detection mechanism and a desorption mechanism, activated carbon adsorption plates are arranged in a first adsorption box and a second adsorption box of the adsorption box, and the detection mechanism is used for detecting the concentration of pollutants in a waste gas inlet pipe and a waste gas discharge pipe; obtaining the saturation of the activated carbon adsorption plate; the desorption mechanism is used for desorbing any one or more activated carbon adsorption plates in the adsorption box according to the saturation degree of the activated carbon adsorption plates. Desorption is automatically carried out while waste gas treatment is carried out, it is guaranteed that activated carbon is always in an unsaturated state, the waste gas treatment requirement is met, the operation cost and the maintenance workload are reduced, and the problems that due to activated carbon saturation, waste gas is directly discharged without treatment and pollutes the environment, and normal treatment of waste gas is affected by replacement or regeneration of activated carbon are solved. And the operation cost and the maintenance workload are increased.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device and method. Background Technology

[0002] Activated carbon adsorption is a widely used technology for industrial waste gas treatment, especially excelling in the treatment of volatile organic compounds (VOCs). Due to its porous structure and large specific surface area, activated carbon can effectively adsorb organic pollutants in waste gases.

[0003] Activated carbon adsorption technology is suitable for waste gases generated in various industrial processes, such as furniture manufacturing, metal surface treatment, chemical industry, and pharmaceutical industry. It can treat low-concentration, high-volume organic waste gases and remove particulate matter and oil mist from the waste gas through pretreatment facilities, thus protecting the activated carbon and extending its service life. However, activated carbon gradually becomes saturated during the adsorption process and loses its adsorption capacity. Once the activated carbon is saturated, the waste gas will be directly emitted without treatment, polluting the environment. Moreover, replacing or regenerating the activated carbon will affect the normal treatment of waste gas and increase operating costs and maintenance workload. Therefore, we propose a waste gas treatment device and method. Summary of the Invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a waste gas treatment device and method, which has the characteristics of automatically desorbing during waste gas treatment, ensuring that the activated carbon is always in an unsaturated state, meeting the waste gas treatment requirements, reducing operating costs and maintenance workload. It solves the problem that activated carbon gradually becomes saturated during the adsorption process and loses its adsorption capacity. Once the activated carbon is saturated, the waste gas will be directly discharged without treatment, polluting the environment. Moreover, replacing or regenerating the activated carbon will affect the normal treatment of waste gas and increase operating costs and maintenance workload.

[0005] This invention provides the following technical solution:

[0006] An exhaust gas treatment device includes an adsorption box, a detection mechanism, and a desorption mechanism. The adsorption box is provided with an adsorption box one and an adsorption box two. One side of the adsorption box one and the adsorption box two are connected to the exhaust gas inlet pipe through a transfer box, and the other side is connected to the exhaust pipe through another transfer box. The two transfer boxes are used to control at least one of the adsorption box one and the adsorption box two to be simultaneously connected to the exhaust gas inlet pipe and the exhaust pipe.

[0007] The adsorption box one and adsorption box two are equipped with activated carbon adsorption plates. The detection mechanism is used to detect the concentration of pollutants in the exhaust gas inlet pipe and the exhaust pipe, and to obtain the saturation of the activated carbon adsorption plate.

[0008] The first and second adsorption boxes are connected to the desorption mechanism, which is used to desorb any one or more activated carbon adsorption plates in the adsorption box according to the saturation of the activated carbon adsorption plates.

[0009] Preferably, the detection mechanism includes a pollutant concentration detector one installed on the exhaust gas inlet pipe and a pollutant concentration detector two installed on the exhaust pipe;

[0010] It also includes a controller, which is used to obtain the saturation of the activated carbon adsorption plate based on the data from pollutant concentration detector one and pollutant concentration detector two, and to start the desorption mechanism.

[0011] Preferably, a return pipe is provided between the discharge pipe and the exhaust gas inlet pipe, and the return pipe is used to return the non-compliant exhaust gas in the discharge pipe to the exhaust gas inlet pipe.

[0012] Preferably, the first adsorption box includes a first activated carbon adsorption box, a third activated carbon adsorption box, and a fifth activated carbon adsorption box, and the second adsorption box includes a second activated carbon adsorption box, a fourth activated carbon adsorption box, and a sixth activated carbon adsorption box.

[0013] The first activated carbon adsorption box and the second activated carbon adsorption box are connected to the discharge pipe through a transfer box 1. The transfer box 1 is used to control at least one of the first activated carbon adsorption box and the second activated carbon adsorption box to be connected to the discharge pipe.

[0014] The first activated carbon adsorption box and the second activated carbon adsorption box are connected to the third activated carbon adsorption box and the fourth activated carbon adsorption box through the second transfer box. The second transfer box is used to control the connection between at least one of the first activated carbon adsorption box and the second activated carbon adsorption box and any one or two of the third activated carbon adsorption box and the fourth activated carbon adsorption box.

[0015] The third and fourth activated carbon adsorption boxes are connected to the fifth and sixth activated carbon adsorption boxes through transfer box three. The transfer box three is used to control at least one of the third and fourth activated carbon adsorption boxes to be connected to any one or two of the fifth and sixth activated carbon adsorption boxes.

[0016] The fifth and sixth activated carbon adsorption boxes are connected to the exhaust gas inlet pipe through transfer box four. Transfer box four is used to control at least one of the fifth and sixth activated carbon adsorption boxes to be connected to the exhaust gas inlet pipe.

[0017] Preferably, the desorption mechanism includes a desorption inlet pipe, a desorption outlet pipe, a first desorption branch pipe, and a second desorption branch pipe;

[0018] The desorption inlet pipe is connected to desorption branch pipe one and desorption branch pipe two. Desorption branch pipe one is connected to the first activated carbon adsorption box, the third activated carbon adsorption box and the fifth activated carbon adsorption box. Desorption branch pipe two is connected to the second activated carbon adsorption box, the fourth activated carbon adsorption box and the sixth activated carbon adsorption box.

[0019] The first activated carbon adsorption box, the second activated carbon adsorption box, the third activated carbon adsorption box, the fourth activated carbon adsorption box, the fifth activated carbon adsorption box, and the sixth activated carbon adsorption box are all connected to the desorption outlet pipe.

[0020] Preferably, the desorption outlet pipe is connected to the waste gas catalytic combustion equipment, and a vacuum pump is installed on the desorption outlet pipe.

[0021] Preferably, it also includes a heat recovery box, in which both the desorption inlet pipe and the exhaust gas inlet pipe are placed, and the heat recovery box is used to transfer the heat from the exhaust gas inlet pipe to the desorption inlet pipe.

[0022] Preferably, it also includes a steam box, which is connected to the desorption inlet pipe via a steam pipe. A sealing valve one is provided on the steam pipe, and a sealing valve two is provided on the desorption inlet pipe. The steam box is used to provide high-pressure steam to the desorption branch pipe one and the desorption branch pipe two.

[0023] Preferably, the steam box is installed in and connected to the heat recovery box. A heat insulation partition and a heat insulation sealing plate are installed between the steam box and the heat recovery box. The heat insulation sealing plate is moved horizontally by a telescopic rod to achieve sealing in conjunction with the heat insulation partition. A heating plate is installed in the steam box.

[0024] The steam box is equipped with a pressure valve, a water injection valve, and a drain valve. The telescopic rod is fixed by a fixing plate, and the guide rod on the heat insulation sealing plate is inserted into the limiting hole of the fixing plate.

[0025] A waste gas treatment method includes the following steps: Waste gas is introduced into an adsorption mechanism, where multiple activated carbon adsorption boxes simultaneously adsorb the waste gas. The multiple activated carbon adsorption boxes are connected in a parallel and series hybrid configuration. Each activated carbon adsorption box is connected to a desorption mechanism via a pipeline. A detection mechanism detects the pollutant concentrations in the inlet and outlet gases of the adsorption mechanism to determine the saturation of the activated carbon. When the activated carbon saturation decreases, one or more activated carbon adsorption boxes in the adsorption mechanism are isolated and desorbed by the desorption mechanism. The other activated carbon adsorption boxes continue to adsorb pollutants in the waste gas normally.

[0026] This invention provides a waste gas treatment device and method. It utilizes multiple parallel and series-connected activated carbon adsorption boxes to adsorb waste gas while simultaneously detecting the pollutant concentrations in the inlet and outlet gases to determine the adsorption capacity and saturation of the activated carbon. When the activated carbon saturation decreases, one or more activated carbon adsorption boxes in the adsorption unit are isolated and desorbed by a desorption mechanism. The remaining activated carbon adsorption boxes continue to adsorb pollutants in the waste gas. This method allows for both the detection of activated carbon saturation and the control and adjustment of the adsorption capacity of any single or multiple activated carbon blocks, while simultaneously providing uninterrupted waste gas treatment. This solves the problem that activated carbon gradually becomes saturated during adsorption, losing its adsorption capacity. Once activated carbon is saturated, waste gas is directly emitted without treatment, polluting the environment. Furthermore, replacing or regenerating activated carbon disrupts normal waste gas treatment and increases operating costs and maintenance workload. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the adsorption box structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the steam box structure of the present invention. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the steam box structure of the present invention. Figure 2 .

[0031] In the diagram: 1. Heat recovery box; 2. Adsorption box; 21. Pollutant concentration detector one; 22. Pollutant concentration detector two; 23. Desorption outlet pipe; 24. Return pipe; 25. Desorption branch pipe one; 26. Desorption branch pipe two; 27. First activated carbon adsorption box; 28. Second activated carbon adsorption box; 29. ​​Third activated carbon adsorption box; 210. Fourth activated carbon adsorption box; 211. Fifth activated carbon adsorption box; 212. Sixth activated carbon adsorption box; 213. Activated carbon adsorption plate; 214. Transfer box; 3. Steam box; 31. Steam pipe; 32. Sealing valve one; 33. Pressure valve; 34. Heating plate; 35. Insulation partition; 36. Insulation sealing plate; 37. Fixing plate; 38. Telescopic rod; 39. Guide rod; 310. Water injection valve; 311. Drain valve; 4. Desorption air inlet pipe; 41. Sealing valve two; 5. Waste gas inlet pipe; 6. Discharge pipe; 7. Waste gas catalytic combustion equipment; 71. Vacuum pump; 8. Controller. Detailed Implementation

[0032] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides a technical solution:

[0034] Example 1:

[0035] like Figure 1 and 2 As shown, a waste gas treatment device includes an adsorption box 2, a detection mechanism, and a desorption mechanism. The adsorption box 2 is equipped with an adsorption box 1 and an adsorption box 2. One side of the adsorption box 1 and the adsorption box 2 are connected to the waste gas inlet pipe 5 through a transfer box 214, and the other side is connected to the discharge pipe 6 through another transfer box 214. The two transfer boxes 214 are used to control at least one of the adsorption box 1 and the adsorption box 2 to be simultaneously connected to the waste gas inlet pipe 5 and the discharge pipe 6. When both the adsorption box 1 and the adsorption box 2 are connected to the waste gas inlet pipe 5 and the discharge pipe 6, both adsorption boxes adsorb waste gas.

[0036] Activated carbon adsorption plates 213 are installed in adsorption boxes one and two. A detection mechanism is used to detect the pollutant concentration in the exhaust gas inlet pipe 5 and the exhaust pipe 6 to obtain the saturation of the activated carbon adsorption plates 213. The detection mechanism can be freely set according to the percentage decrease in adsorption capacity. For example, when the adsorption capacity of a certain activated carbon adsorption plate 213 drops to 80%, it is desorbed to maintain its adsorption capacity at a high level. During the desorption process, at least one passageway is maintained between the exhaust gas inlet pipe 5 and the exhaust pipe 6 to ensure the normal treatment of the exhaust gas.

[0037] Adsorption box one and adsorption box two are connected to the desorption mechanism, which is used to desorb any one or more activated carbon adsorption plates 213 in the adsorption box 2 according to the saturation of the activated carbon adsorption plate 213.

[0038] When the adsorption capacity of the activated carbon adsorption plate 213 decreases, i.e., it approaches saturation, either adsorption box one or adsorption box two is connected to the exhaust gas inlet pipe 5 and the exhaust pipe 6 through the transfer box 214, and the other is desorbed. The adsorption box connected to the exhaust gas inlet pipe 5 and the exhaust pipe 6 continues to adsorb, so that the treatment of exhaust gas is not interrupted.

[0039] Example 2:

[0040] like Figure 1 and 2As shown, based on Example 1, the detection mechanism includes a pollutant concentration detector 21 installed on the exhaust gas inlet pipe 5 and a pollutant concentration detector 22 installed on the exhaust pipe 6. Pollutant concentration detector 21 monitors the pollutant concentration in the exhaust gas before treatment, and pollutant concentration detector 22 monitors the pollutant concentration in the exhaust gas after treatment. By comparing the two data points, the exhaust gas treatment effect, as well as the adsorption capacity and saturation of the activated carbon adsorption plate 213, are determined. Pollutant concentration detectors 21 and 22 employ either electrochemical sensors or laser spectral sensors. Electrochemical sensors detect gas concentration through electrochemical reactions and are suitable for monitoring various combustible and toxic gases. Laser spectral sensors achieve high-precision detection by accurately measuring the absorption intensity of the gas at a specific laser frequency.

[0041] It also includes a controller 8, which is used to obtain the saturation of the activated carbon adsorption plate 213 based on the data from pollutant concentration detector 21 and pollutant concentration detector 22, and to start the desorption mechanism. The controller 8 adopts a PLC control system and is equipped with a display screen for viewing data and control buttons for setting data.

[0042] A return pipe 24 is installed between the discharge pipe 6 and the exhaust gas inlet pipe 5. The return pipe 24 can return the non-compliant exhaust gas in the discharge pipe 6 to the exhaust gas inlet pipe 5, so as to avoid pollution caused by inadequate exhaust gas treatment.

[0043] Example 3:

[0044] like Figure 1 and 2 As shown, based on Example 2, the first adsorption box includes a first activated carbon adsorption box 27, a third activated carbon adsorption box 29, and a fifth activated carbon adsorption box 211, and the second adsorption box includes a second activated carbon adsorption box 28, a fourth activated carbon adsorption box 210, and a sixth activated carbon adsorption box 212.

[0045] The first activated carbon adsorption box 27 and the second activated carbon adsorption box 28 are connected to the discharge pipe 6 through a transfer box one. The first activated carbon adsorption box 27 and the second activated carbon adsorption box 28 are connected to the third activated carbon adsorption box 29 and the fourth activated carbon adsorption box 210 through a transfer box two. The third activated carbon adsorption box 29 and the fourth activated carbon adsorption box 210 are connected to the fifth activated carbon adsorption box 211 and the sixth activated carbon adsorption box 212 through a transfer box three. The fifth activated carbon adsorption box 211 and the sixth activated carbon adsorption box 212 are connected to the exhaust gas inlet pipe 5 through a transfer box four.

[0046] Transfer box one controls at least one of the first activated carbon adsorption boxes 27 and the second activated carbon adsorption box 28 to be connected to the discharge pipe 6; transfer box two controls at least one of the first activated carbon adsorption boxes 27 and the second activated carbon adsorption box 28 to be connected to any one or two of the third activated carbon adsorption boxes 29 and the fourth activated carbon adsorption box 210; transfer box three is used to control at least one of the third activated carbon adsorption boxes 29 and the fourth activated carbon adsorption box 210 to be connected to any one or two of the fifth activated carbon adsorption boxes 211 and the sixth activated carbon adsorption box 212; transfer box four is used to control at least one of the fifth activated carbon adsorption boxes 211 and the sixth activated carbon adsorption box 212 to be connected to the exhaust gas inlet pipe 5.

[0047] like Figure 2 As shown, six activated carbon adsorption boxes are connected to the exhaust gas inlet pipe 5 and the exhaust pipe 6 via four transfer boxes 214, forming a three-row, two-column structure. Through the coordinated control of the four transfer boxes 214, at least one activated carbon adsorption box in each row is connected to a transfer box 214, thus forming a passage between the exhaust gas inlet pipe 5 and the exhaust pipe 6. The remaining 1-3 adsorption boxes can be desorbed, either individually or simultaneously. The six activated carbon adsorption boxes switch back and forth, and the adsorption capacity of the activated carbon is monitored. The return gas pipe 24 prevents pollution caused by inadequate exhaust gas treatment during the switching and monitoring process.

[0048] The desorption mechanism includes a desorption inlet pipe 4, a desorption outlet pipe 23, a first desorption branch pipe 25, and a second desorption branch pipe 26; the desorption inlet pipe 4 is connected to the first desorption branch pipe 25 and the second desorption branch pipe 26, the first desorption branch pipe 25 is connected to the first activated carbon adsorption box 27, the third activated carbon adsorption box 29, and the fifth activated carbon adsorption box 211, and the second desorption branch pipe 26 is connected to the second activated carbon adsorption box 28, the fourth activated carbon adsorption box 210, and the sixth activated carbon adsorption box 212.

[0049] The first activated carbon adsorption box 27, the second activated carbon adsorption box 28, the third activated carbon adsorption box 29, the fourth activated carbon adsorption box 210, the fifth activated carbon adsorption box 211, and the sixth activated carbon adsorption box 212 are all connected to the desorption outlet pipe 23.

[0050] The desorption mechanism achieves desorption by introducing heated air from the desorption inlet pipe 4 into the isolated adsorption box, and then discharging it through the desorption outlet pipe 23. Each activated carbon adsorption box is equipped with a valve at the connection port or in the connecting pipe to the transfer box 214. By adjusting the opening and closing of the valve, the activated carbon adsorption box can be isolated or opened, thereby enabling activated carbon desorption and waste gas adsorption.

[0051] Example 4:

[0052] like Figure 1 and 2As shown, based on Example 3, the desorption outlet pipe 23 is connected to the waste gas catalytic combustion device 7, and a vacuum pump 71 is installed on the desorption outlet pipe 23. The vacuum pump 71 reduces the pressure in the activated carbon adsorption box during the desorption process, thereby improving the desorption efficiency and effect.

[0053] It also includes a heat recovery box 1, in which the desorption inlet pipe 4 and the exhaust gas inlet pipe 5 are all placed. The heat recovery box 1 is used to transfer the heat from the exhaust gas inlet pipe 5 to the desorption inlet pipe 4. The heat recovery box 1 is filled with water or a heat-conducting component to recover the heat from the exhaust gas in the exhaust gas inlet pipe 5 and then heat the gas in the desorption inlet pipe 4. In addition, a heating component is also installed on the desorption inlet pipe 4 to heat the gas when the temperature is insufficient.

[0054] Example 5:

[0055] like Figure 3 and 4 As shown, based on Embodiment 4, a steam box 3 is also included. The steam box 3 is connected to the desorption inlet pipe 4 via a steam pipe 31. A sealing valve 32 is installed on the steam pipe 31, and a sealing valve 41 is installed on the desorption inlet pipe 4. The steam box 3 can provide high-pressure steam to the desorption branch pipes 25 and 26 when valve 1 is open and valve 2 is closed. Replacing the hot air in the desorption inlet pipe 4 with high-pressure steam results in better desorption. After desorption, hot air is used for drying. A vacuum pump 71 can also be used to perform dehydration and drying, further improving the desorption effect and efficiency.

[0056] A steam box 3 is installed within and connected to a heat recovery box 1. An insulation partition 35 and an insulation sealing plate 36 are installed between the steam box 3 and the heat recovery box 1. A heating plate 34 is installed within the steam box 3. The steam box 3's location within the heat recovery box 1 allows the use of the energy from the hot water in the heat recovery box 1, reducing the heating time and power required by the heating plate 34, thus further achieving the effect of energy recovery. When the steam box 3 is used for heating, the insulation sealing plate 36 is moved horizontally via a telescopic rod 38, working in conjunction with the insulation partition 35 to achieve a seal and prevent interference with the heating effect of the heating plate 34. When the steam box 3 is not in use, it is in an open state, using recovered heat to heat the water within it. The telescopic rod 38 can also be used to repeatedly move the insulation sealing plate 36 horizontally to facilitate the flow of hot water.

[0057] The steam box 3 is equipped with a pressure valve 33, a water injection valve 310, and a drain valve 311. The telescopic rod 38 is fixed by a fixing plate 37, and the guide rod 39 on the insulation sealing plate 36 is inserted into the limiting hole of the fixing plate 37. By setting the pressure valve 33, the danger caused by excessive steam is avoided. By setting the guide rod 39 and the limiting hole, the insulation sealing plate 36 can be easily moved horizontally. By setting the water injection valve 310 and the drain valve 311, it is easy to add water to the steam box 3 and the heat recovery box 1. In addition, the desorption air inlet pipe 4 can also be set in the steam box 3 of the heat recovery box 1, so that the hot air can be heated by the heating plate 34, eliminating the need for the heating component of the desorption air inlet pipe 4.

[0058] A waste gas treatment method includes the following steps: Waste gas is introduced into an adsorption mechanism, where multiple activated carbon adsorption boxes simultaneously adsorb the waste gas. The multiple activated carbon adsorption boxes are connected in a parallel and series hybrid configuration. Each activated carbon adsorption box is connected to a desorption mechanism via a pipeline. A detection mechanism detects the pollutant concentrations in the inlet and outlet gases of the adsorption mechanism to determine the saturation of the activated carbon. When the activated carbon saturation decreases, one or more activated carbon adsorption boxes in the adsorption mechanism are isolated and desorbed by the desorption mechanism. The other activated carbon adsorption boxes continue to adsorb pollutants in the waste gas normally.

[0059] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waste gas treatment device, characterized in that: It includes an adsorption box (2), a detection mechanism and a desorption mechanism. The adsorption box (2) is equipped with an adsorption box one and an adsorption box two. One side of the adsorption box one and the adsorption box two are connected to the exhaust gas inlet pipe (5) through a transfer box (214), and the other side is connected to the discharge pipe (6) through another transfer box (214). The two transfer boxes (214) are used to control at least one of the adsorption box one and the adsorption box two to be connected to the exhaust gas inlet pipe (5) and the discharge pipe (6) at the same time. The adsorption box one and adsorption box two are provided with activated carbon adsorption plates (213). The detection mechanism is used to detect the concentration of pollutants in the exhaust gas inlet pipe (5) and the exhaust pipe (6) and to obtain the saturation of the activated carbon adsorption plate (213). The first and second adsorption boxes are connected to the desorption mechanism, which is used to desorb any one or more activated carbon adsorption plates (213) in the adsorption box (2) according to the saturation of the activated carbon adsorption plates (213).

2. The waste gas treatment equipment according to claim 1, characterized in that: The detection mechanism includes a pollutant concentration detector 1 (21) installed on the exhaust gas inlet pipe (5) and a pollutant concentration detector 2 (22) installed on the exhaust pipe (6). It also includes a controller (8) for obtaining the saturation of the activated carbon adsorption plate (213) based on the data from pollutant concentration detector one (21) and pollutant concentration detector two (22), and activating the desorption mechanism.

3. The waste gas treatment equipment according to claim 2, characterized in that: A return pipe (24) is provided between the discharge pipe (6) and the exhaust gas inlet pipe (5). The return pipe (24) is used to return the non-compliant exhaust gas in the discharge pipe (6) to the exhaust gas inlet pipe (5).

4. The waste gas treatment equipment according to claim 1, characterized in that: The first adsorption box includes a first activated carbon adsorption box (27), a third activated carbon adsorption box (29), and a fifth activated carbon adsorption box (211), and the second adsorption box includes a second activated carbon adsorption box (28), a fourth activated carbon adsorption box (210), and a sixth activated carbon adsorption box (212). The first activated carbon adsorption box (27) and the second activated carbon adsorption box (28) are connected to the discharge pipe (6) through a transfer box 1. The transfer box 1 is used to control at least one of the first activated carbon adsorption box (27) and the second activated carbon adsorption box (28) to be connected to the discharge pipe (6). The first activated carbon adsorption box (27) and the second activated carbon adsorption box (28) are connected to the third activated carbon adsorption box (29) and the fourth activated carbon adsorption box (210) through the second transfer box. The second transfer box is used to control at least one of the first activated carbon adsorption box (27) and the second activated carbon adsorption box (28) to be connected to any one or two of the third activated carbon adsorption box (29) and the fourth activated carbon adsorption box (210). The third activated carbon adsorption box (29) and the fourth activated carbon adsorption box (210) are connected to the fifth activated carbon adsorption box (211) and the sixth activated carbon adsorption box (212) through the transfer box three. The transfer box three is used to control at least one of the third activated carbon adsorption box (29) and the fourth activated carbon adsorption box (210) to be connected to any one or two of the fifth activated carbon adsorption box (211) and the sixth activated carbon adsorption box (212). The fifth activated carbon adsorption box (211) and the sixth activated carbon adsorption box (212) are connected to the exhaust gas inlet pipe (5) through the transfer box four. The transfer box four is used to control at least one of the fifth activated carbon adsorption box (211) and the sixth activated carbon adsorption box (212) to be connected to the exhaust gas inlet pipe (5).

5. The waste gas treatment equipment according to claim 4, characterized in that: The desorption mechanism includes a desorption inlet pipe (4), a desorption outlet pipe (23), a first desorption branch pipe (25), and a second desorption branch pipe (26). The desorption inlet pipe (4) is connected to the first desorption branch pipe (25) and the second desorption branch pipe (26). The first desorption branch pipe (25) is connected to the first activated carbon adsorption box (27), the third activated carbon adsorption box (29), and the fifth activated carbon adsorption box (211). The second desorption branch pipe (26) is connected to the second activated carbon adsorption box (28), the fourth activated carbon adsorption box (210), and the sixth activated carbon adsorption box (212). The first activated carbon adsorption box (27), the second activated carbon adsorption box (28), the third activated carbon adsorption box (29), the fourth activated carbon adsorption box (210), the fifth activated carbon adsorption box (211), and the sixth activated carbon adsorption box (212) are all connected to the desorption outlet pipe (23).

6. The waste gas treatment equipment according to claim 5, characterized in that: The desorption outlet pipe (23) is connected to the waste gas catalytic combustion device (7), and a vacuum pump (71) is installed on the desorption outlet pipe (23).

7. The waste gas treatment equipment according to claim 5, characterized in that: It also includes a heat recovery box (1), in which the desorption inlet pipe (4) and the exhaust gas inlet pipe (5) are both placed. The heat recovery box (1) is used to transfer the heat from the exhaust gas inlet pipe (5) to the desorption inlet pipe (4).

8. The waste gas treatment equipment according to claim 7, characterized in that: It also includes a steam box (3), which is connected to the desorption inlet pipe (4) via a steam pipe (31). A sealing valve (32) is provided on the steam pipe (31), and a sealing valve (41) is provided on the desorption inlet pipe (4). The steam box (3) is used to provide high-pressure steam to the desorption branch pipe (25) and the desorption branch pipe (26).

9. The waste gas treatment equipment according to claim 8, characterized in that: The steam box (3) is installed in the heat recovery box (1) and is connected to the heat recovery box (1). A heat insulation partition (35) and a heat insulation sealing plate (36) are provided between the steam box (3) and the heat recovery box (1). The heat insulation sealing plate (36) is moved by the telescopic rod (38) to achieve sealing in conjunction with the heat insulation partition (35). A heating plate (34) is provided in the steam box (3). The steam box (3) is equipped with a pressure valve (33), a water injection valve (310) and a drain valve (311). The telescopic rod (38) is fixed by a fixing plate (37), and the guide rod (39) on the heat insulation sealing plate (36) is inserted into the limiting hole of the fixing plate (37).

10. A method for treating waste gas, characterized in that: The process includes the following steps: Waste gas is introduced into the adsorption mechanism, where multiple activated carbon adsorption boxes simultaneously adsorb the waste gas. These boxes are connected in a parallel and series configuration. Each activated carbon adsorption box is connected to a desorption mechanism via a pipe. A detection mechanism monitors the pollutant concentrations in the inlet and outlet gases of the adsorption mechanism to determine the activated carbon saturation. When the activated carbon saturation decreases, one or more activated carbon adsorption boxes in the adsorption mechanism are isolated, and desorption is performed through the desorption mechanism. The other activated carbon adsorption boxes continue to adsorb pollutants from the waste gas normally.

Images