Waste gas treatment device for sodium ion hard carbon negative electrode atmosphere furnace

Abstract

The utility model discloses a waste gas treatment device of a sodium ion hard carbon negative electrode atmosphere furnace, and belongs to the technical field of waste gas treatment. The device is characterized in that a photocatalytic oxidation unit comprises a reactor, the reactor is provided with a lining, and a honeycomb TiO2 catalyst and an ultraviolet light source are arranged in the reactor; the adsorption treatment unit comprises an ion exchange resin tower A and an ion exchange resin tower B, the ion exchange resin tower A and the ion exchange resin tower B are connected in series, and the ion exchange resin tower A is internally provided with strongly acidic cationic resin and a first spraying liquid part; chelating resin and a second spraying liquid component are arranged in the ion exchange resin tower B; the monitoring unit comprises a PLC (Programmable Logic Controller), an NH3 laser analyzer and an SO2 electrochemical sensor, the NH3 laser analyzer and the SO2 electrochemical sensor are respectively arranged on a gas outlet B connecting pipeline of the ion exchange resin tower B, and the PLC is electrically connected with the ultraviolet light source, the first spraying liquid component, the second spraying liquid component, the NH3 laser analyzer and the SO2 electrochemical sensor.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology. More specifically, it relates to a waste gas treatment device for a sodium ion hard carbon anode atmosphere furnace. It is a comprehensive treatment device for sulfur-containing and ammonia-containing waste gases generated during the preparation of sodium ion hard carbon anode materials, and even a comprehensive treatment device for volatile organic compound (VOC) waste gases. It is suitable for the efficient purification and resource recovery of tail gas from high-temperature atmosphere furnaces. Background Technology

[0002] In the secondary carbonization process of sodium-ion hard carbon anode materials, biomass-based raw materials (such as coconut shells, straw, asphalt, etc.) are pyrolyzed in a high-temperature atmosphere furnace (1200-1500℃) under nitrogen protection, generating waste gas containing SO2, NH3, and a small amount of VOCs. Traditional treatment methods have problems such as secondary pollution risks (e.g., secondary volatilization of ammonia), low neutralization efficiency of acidic gases, and inability to simultaneously degrade VOCs, making it difficult to meet the stringent laboratory-level emission standards (NH3 < 5 ppm, SO2 < 20 mg / m³). 3 ).

[0003] Based on the search and analysis of existing technologies, patent application CN119737768A discloses a roller furnace for sintering hard carbon anodes of sodium-ion batteries. Its main function is to remove dust and purify the air and hard carbon surface in the starting section of the roller furnace body, as well as to clean the oxides and carbonization reactants attached to the surface of the hard carbon after sintering, so as to improve the quality and performance of the hard carbon anode material. However, it does not involve the treatment of sulfur and ammonia in the exhaust gas. Summary of the Invention

[0004] 1. The problem to be solved

[0005] To address the technical problems existing in the prior art, this utility model provides a sodium ion hard carbon negative electrode atmosphere furnace exhaust gas treatment device, which is modular and highly integrated. Through the synergistic technology of photocatalytic oxidation, ion exchange resin deep treatment and intelligent monitoring, it reduces the sulfur and ammonia content in exhaust gas containing SO2 and NH3.

[0006] 2. Technical Solution

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0008] The first aspect of this utility model provides an atmosphere furnace exhaust gas treatment device, which is connected to an atmosphere furnace via a pipeline and is capable of receiving exhaust gas containing SO2 and NH3 from the atmosphere furnace. The device includes:

[0009] 1) A photocatalytic oxidation unit, comprising a reactor having an inner liner, wherein the reactor contains an area with a specific surface area > 200 m². 2 / g of honeycomb TiO2 catalyst and 200-320nm ultraviolet light source;

[0010] 2) An adsorption treatment unit, comprising ion exchange resin tower A and ion exchange resin tower B connected in series, wherein ion exchange resin tower A contains a strong acidic cation resin and a first spray liquid component; and ion exchange resin tower B contains a chelating resin and a second spray liquid component.

[0011] 3) Monitoring unit, which includes a PLC controller, an NH3 laser analyzer and an SO2 electrochemical sensor. The NH3 laser analyzer and the SO2 electrochemical sensor are respectively installed outside the outlet B of the ion exchange resin tower B. The PLC controller is electrically connected to a 200-320nm ultraviolet light source, a first spray liquid component, a second spray liquid component, an NH3 laser analyzer and an SO2 electrochemical sensor.

[0012] According to any embodiment of the first aspect of the present invention, the honeycomb TiO2 catalyst is longitudinally distributed in the reactor, and the 200-320nm ultraviolet light source is located on the inner sidewall of the reactor and is arranged towards the honeycomb TiO2 catalyst; preferably, the 200-320nm ultraviolet light source includes at least one ultraviolet lamp.

[0013] According to any embodiment of the first aspect of the present invention, the reactor is a quartz glass reactor, a borosilicate glass reactor, a soda-lime glass reactor, or an alumina single crystal reactor.

[0014] According to any embodiment of the first aspect of the present invention, the lining is made of 316L stainless steel, 316 stainless steel, 2205 duplex steel, 440C martensitic stainless steel or 17-4PH precipitation hardening steel.

[0015] According to any embodiment of the first aspect of the present invention, the ultraviolet light source is a 254nm ultraviolet light source.

[0016] According to any embodiment of the first aspect of the present invention, the air inlet A of the ion exchange resin tower A is located in the lower middle part, the air outlet A is located at the top, and the water outlet A is provided at the bottom of the ion exchange resin tower A; the air inlet B of the ion exchange resin tower B is located in the lower middle part, the air outlet B is located at the top, and the water outlet B is provided at the bottom of the ion exchange resin tower B; the air outlet A of the ion exchange resin tower A and the air inlet B of the ion exchange resin tower B are connected in series through a pipe.

[0017] According to any embodiment of the first aspect of the present invention, the first spray liquid component includes a spray head A located at the top of the tower, the spray head A being connected to an external pipeline, such that the spray head A can spray onto the strongly acidic cation exchange resin to regenerate it; the second spray liquid component includes a spray head B located at the top of the tower, the spray head B being connected to an external pipeline, such that the spray head B can spray onto the chelating resin to regenerate it.

[0018] According to any embodiment of the first aspect of the present invention, the strongly acidic cation exchange resin is Amberlite IR-120, Dowex 50WX2, Dowex 50WX4, Indion 224, Indion 244, Purolite C100HMR, or Kyron-T-154; the chelating resin is Dowex M4195 or Lewatit TP207.

[0019] According to any embodiment of the first aspect of the present invention, it further includes a water storage tank A, wherein the spray liquid is water, and the water storage tank A is connected to the spray head A.

[0020] According to any embodiment of the first aspect of the present invention, it further includes an HCl storage tank B, wherein the spray liquid is HCl, and the HCl storage tank B is connected to the spray head B.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] (1) The sodium ion hard carbon anode atmosphere furnace exhaust gas treatment device of this utility model achieves the harmlessness and resource utilization of exhaust gas through the synergistic technology of photocatalytic oxidation-ion exchange resin deep treatment-intelligent monitoring, so as to solve the problem that the existing technology has poor treatment effect on sulfur-containing and ammonia-containing exhaust gas generated in the preparation process of sodium ion hard carbon anode materials in the laboratory, and cannot meet the stringent emission standards of the laboratory. The emission gas after treatment is tested and found to have NH3 < 5ppm and SO2 < 20mg / m³. 3 .

[0024] (2) The sodium ion hard carbon negative electrode atmosphere furnace exhaust gas treatment device of this utility model has the following advantages: high efficiency purification: two-stage treatment ensures the simultaneous removal of NH3, SO2 and VOCs, and the emission concentration is better than the laboratory standard; resource recovery: SO2 is converted into H2SO3 and can be recycled, reducing the treatment cost; prevention of secondary pollution: resin adsorption-regeneration design avoids secondary volatilization of ammonia, and closed-loop control improves safety; compact integration: the modular structure is adapted to the laboratory space limitation and the operation and maintenance are convenient. Attached Figure Description

[0025] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this utility model. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of the structure of the sodium ion hard carbon negative electrode atmosphere furnace exhaust gas treatment device of this utility model;

[0027] Figure 2 This is a top view of the sodium ion hard carbon negative electrode atmosphere furnace exhaust gas treatment device of this utility model;

[0028] Figure 3 This is a schematic diagram of the second profile and connection structure of the sodium ion hard carbon negative electrode atmosphere furnace exhaust gas treatment device of this utility model;

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Atmosphere furnace;

[0031] 200. Reactor; 210. Liner; 220. Honeycomb TiO2 catalyst; 230. Ultraviolet light source;

[0032] 300. Ion exchange resin tower A; 310. Strong acid cation exchange resin; 320. Spray head A; 330. Air inlet A; 340. Air outlet A; 350. Water outlet A; 360. Water storage tank A;

[0033] 400, Ion exchange resin tower B; 410, Chelating resin; 420, Spray head B; 430, Air inlet B; 440, Air outlet B; 450, Water outlet B;

[0034] 500, NH3 laser analyzer; 600, SO2 electrochemical sensor; 700, pipeline. Detailed Implementation

[0035] The following detailed description of exemplary embodiments of the present invention refers to the accompanying drawings, which form part of the description, illustrating exemplary embodiments in which the present invention may be implemented. Although these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from the spirit and scope thereof. The more detailed description of embodiments of the present invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and does not limit the description of the features and characteristics of the invention, in order to suggest the best mode for carrying out the invention and sufficient to enable those skilled in the art to implement it. Therefore, the scope of the present invention is defined only by the appended claims.

[0036] The following detailed description and exemplary embodiments of the present invention can be better understood in conjunction with the accompanying drawings, wherein the elements and features of the present invention are identified by reference numerals.

[0037] like Figures 1 to 3 As shown, the waste gas treatment device for the sodium ion hard carbon negative electrode atmosphere furnace 100 of this utility model is connected to the atmosphere furnace 100 via pipeline and can receive waste gas containing SO2 and NH3 coming out of the atmosphere furnace 100. The device includes a photocatalytic oxidation unit, an adsorption treatment unit, and a monitoring unit.

[0038] The photocatalytic oxidation unit includes a reactor 200, which has an inner liner 210 and contains an internal material with a specific surface area >200 m². 2 / g of honeycomb TiO2 catalyst 220 and 200-320nm ultraviolet light source 230; preferably 254nm ultraviolet light source 230.

[0039] The above structural design has a specific surface area > 200m². 2 The honeycomb TiO2 catalyst 220, with its large specific surface area, can increase the contact area between the catalyst and the waste gas, thereby improving the catalytic reaction efficiency. In addition, the core spectral requirements of the honeycomb TiO2 for the ultraviolet light source 230 are: the emission wavelength must be ≤387.5nm (covering UVC to near UVA), with a preferred light source having the main peak in the range of 200-320nm (UVC / UVB) to match its 3.2eV bandgap. At the same time, stray light needs to be reduced to improve energy utilization. It should be noted that the honeycomb structure itself does not change the spectral requirements, but it can improve the capture efficiency of the matching wavelength by enhancing light scattering.

[0040] The device, after testing, combined with a 254nm ultraviolet light source 230, will generate hydroxyl radicals (·OH) when the ultraviolet light irradiates the TiO2 catalyst. Hydroxyl radicals have strong oxidizing properties and can efficiently oxidize NH3 into N2 and H2O. The oxidation rate can reach 90% according to the test. At the same time, SO2 is simultaneously degraded into H2SO3 and VOCs, effectively reducing the content of pollutants in the exhaust gas.

[0041] Targeting residual SO2 and NH4 after photocatalysis + The adsorption treatment unit includes an ion exchange resin tower A300 and an ion exchange resin tower B400 connected in series. The ion exchange resin tower A300 contains a strongly acidic cation exchange resin 310 and a first spray liquid component. The strongly acidic cation exchange resin 310 displaces SO2 to generate recyclable H2SO3. When waste gas containing residual SO2 passes through the strongly acidic cation exchange resin 310 column, the cations in the resin undergo a displacement reaction with the SO2 to generate recyclable H2SO3. This not only further removes sulfur from the waste gas but also achieves resource recovery and reduces treatment costs.

[0042] The ion exchange resin tower B400 incorporates chelating resin 410 and a second spray liquid component; the chelating resin 410 selectively adsorbs NH4. + When the exhaust gas passes through the chelating resin 410 column, NH4 + The ammonia nitrogen is adsorbed by the resin, thus achieving deep removal. Moreover, when the chelating resin 410 reaches saturation, it can be regenerated with 5% HCl to restore its adsorption performance, avoid secondary pollution of ammonia, and also realize the recycling of the resin, reducing operating costs.

[0043] The monitoring unit includes a PLC controller (not labeled in the figure), an NH3 laser analyzer 500, and an SO2 electrochemical sensor 600. The NH3 laser analyzer 500 and the SO2 electrochemical sensor 600 are respectively installed outside the gas outlet B440 of the ion exchange resin tower B400. The PLC controller is electrically connected to a 200-320nm ultraviolet light source 230, a first spray liquid component, a second spray liquid component, the NH3 laser analyzer 500, and the SO2 electrochemical sensor 600.

[0044] The sensors are connected to a PLC (Programmable Logic Controller). The NH3 laser analyzer 500 and the SO2 electrochemical sensor 600 monitor emission concentrations in real time. When the sensors detect a change in emission concentration, they transmit a signal to the PLC controller. The PLC controller adjusts the pH of the spray solution and the resin regeneration cycle of the first and / or second spray solution components according to preset programs and standards. For example, when an increase in SO2 concentration is detected, the PLC controller can control the addition of alkaline substances in the spray solution to improve SO2 absorption efficiency; when an increase in NH4 concentration is detected... + When the concentration changes, the PLC controller can adjust the regeneration cycle of the chelating resin 410 to ensure that the entire treatment process is fully automated and that emissions always meet standards.

[0045] exist Figure 2 In this process, the photocatalytic oxidation unit includes a cylindrical quartz glass reactor 200 (German brand such as Prandtl), which has an air inlet and an air outlet. The reactor is a sealed structure, and its inner wall is lined with a 316L stainless steel liner 210. The reactor 200 contains a material with a specific surface area of ​​250 m². 2 / g honeycomb TiO2 catalyst 220 (SDG acidic gas adsorbent (II) type, Yixing Aokai Environmental Protection New Material Co., Ltd.) and 254nm ultraviolet lamp (Futanxi ultraviolet 254nm UV LED line light source, Benyue (Shanghai) Industrial Equipment Co., Ltd.), of which the specific surface area is 250m² 2 / g honeycomb TiO2 catalyst 220 is longitudinally distributed in quartz glass reactor 200. Four 254nm ultraviolet lamps can be set around the honeycomb TiO2 catalyst 220, all located on the inner sidewall of reactor 200.

[0046] exist Figure 3The adsorption treatment unit includes ion exchange resin tower A300 and ion exchange resin tower B400. The air inlet A330 of ion exchange resin tower A300 is located in the lower middle part, and the air outlet A340 is located at the top. A water outlet B450 is located at the bottom of ion exchange resin tower A300. Similarly, the air inlet B430 of ion exchange resin tower B400 is located in the lower middle part, and the air outlet B440 is located at the top. A water outlet B450 is also located at the bottom of ion exchange resin tower B400. The air outlet A340 of ion exchange resin tower A300 and the air outlet B400 of ion exchange resin tower B400 are connected... The air inlet B430 is connected in series via pipe 700. The ion exchange resin tower A300 contains a strong acid cation resin 310 and a spray head A320 located at the top of the tower, which is connected to an external pipeline. The ion exchange resin tower B400 contains a chelating resin 410 and a spray head B420 located at the top of the tower, which is connected to an external pipeline. Outside the air outlet B440 of the ion exchange resin tower B400 (e.g., connected to a pipeline), an NH3 laser analyzer 500 and an SO2 electrochemical sensor 600 are sequentially installed on the pipeline.

[0047] Targeting residual SO2 and NH4 after photocatalysis + The design incorporates a dual-column series resin tower: the adsorption treatment unit includes ion exchange resin tower A300 and ion exchange resin tower B400, connected in series. Ion exchange resin tower A300 contains Amberlite IR-120 (CAS Registry No. 9002-23-7, molecular formula -[SO2HC6H4CHCH2]CHCH2C6H4CH) and a spray head A320. Amberlite IR-120 strong acid cation exchange resin 310 (Amberlite IR-120 cation exchange resin (sodium form), Beijing Bio-Laibo Technology Co., Ltd.) displaces SO2 to generate recyclable H2SO3. When waste gas containing residual SO2 passes through the strong acid cation exchange resin 310 column, the cations in the resin undergo a displacement reaction with SO2 to generate recyclable H2SO3. The water storage tank A360 is connected to the spray head A320.

[0048] The ion exchange resin tower B400 contains chelating resin 410 and spray head B420. The chelating resin 410 (such as Dowex M4195, a special chelating resin 410 produced by Dow) selectively adsorbs NH4. + When the exhaust gas passes through the chelating resin 410 column, NH4 + The ammonia nitrogen is adsorbed by the resin, thereby achieving deep removal; the HCl storage tank B (not shown in the figure) is connected to the spray head B420.

[0049] In this embodiment, the monitoring unit includes a PLC controller, an NH3 laser analyzer 500 (ammonia analyzer (laser TDLAS) PTM600-NH3, Shenzhen Yiyuntian Electronics Co., Ltd.), and an SO2 electrochemical sensor 600 (SO2-H4 sensor from Alphasense, UK). The NH3 laser analyzer 500 and the SO2 electrochemical sensor 600 are respectively installed outside the outlet B440 of the ion exchange resin tower B400. The PLC controller is electrically connected to a 254nm ultraviolet lamp, a spray head A320, a spray head B420, the NH3 laser analyzer 500, and the SO2 electrochemical sensor 600.

[0050] The specific treatment process of the waste gas treatment device for the sodium ion hard carbon negative electrode atmosphere furnace 100 in this embodiment is as follows:

[0051] (I) Operation of the photocatalytic oxidation unit

[0052] The waste gas containing SO2 and NH3 to be treated is introduced into a 316L stainless steel-lined 210 quartz glass reactor 200. A 254nm ultraviolet light source 230 is turned on to excite the honeycomb TiO2 catalyst to generate hydroxyl radicals (·OH). The residence time of the waste gas in the reactor 200 is controlled, for example, set to 5-10 minutes, to ensure that NH3, SO2 and VOCs react fully with the hydroxyl radicals.

[0053] The operational effectiveness of the photocatalytic oxidation module is evaluated by periodically monitoring the concentration of various pollutants in the exhaust gas at the outlet of reactor 200, such as every 2 hours. If the oxidation effect is found to be poor, check whether the ultraviolet light source 230 is working properly, whether the TiO2 catalyst is damaged or deactivated, and repair or replace it in a timely manner.

[0054] (II) Operation of the Ion Exchange Resin Deep Adsorption Treatment Unit

[0055] Strong acid cation exchange resin 310 column: The waste gas after photocatalytic oxidation passes sequentially through a strong acid cation exchange resin 310 column and a chelating resin 410 column. While the waste gas passes through the strong acid cation exchange resin 310 column, the working status of the resin should be closely monitored. The saturation of the resin can be determined by detecting the SO2 concentration at the resin column outlet. Generally, when the SO2 concentration at the outlet is close to 10% of the concentration at the inlet, the resin is considered to be close to saturation. At this point, the waste gas flow can be stopped, and the resin can be regenerated using appropriate methods, such as reverse flushing with an aqueous solution to wash off the adsorbed SO2. The regenerated resin can then be reused.

[0056] Chelating resin 410 column: The adsorption status of the resin is determined by detecting the concentration of NH4+ at the outlet. When the NH4+ concentration at the outlet exceeds a set threshold, such as 0.5 ppm, the chelating resin 410 is regenerated with 5% HCl.

[0057] During the regeneration process, the flow rate and soaking time of the HCl solution should be controlled. Generally, the flow rate can be set to 1-2 L / min and the soaking time to 30-60 minutes to ensure that the resin can be fully regenerated and its adsorption performance restored.

[0058] (III) Operation of the intelligent monitoring unit

[0059] The NH3 laser analyzer 500 and SO2 electrochemical sensor 600 monitor emission concentrations in real time and transmit the data to the PLC controller. The PLC controller, based on preset emission standards and control strategies, such as when the NH3 concentration exceeds 5 ppm or the SO2 concentration exceeds 20 mg / m³, will control the emission concentration. 3 The system automatically adjusts the pH of the spray solution and the resin regeneration cycle. Simultaneously, operators can view real-time emission concentration data and equipment operating status through the monitoring interface to promptly identify and address any issues. Sensors should be calibrated regularly, such as monthly, to ensure the accuracy of the monitoring data.

[0060] The sodium ion hard carbon negative electrode atmosphere furnace exhaust gas treatment device of this embodiment can achieve at least one of the following effects:

[0061] 1) High-efficiency purification: Through two-stage treatment of photocatalytic oxidation unit and ion exchange resin deep adsorption treatment unit, it can ensure the simultaneous removal of NH3, SO2 and VOCs, so that the final emission concentration is better than the laboratory standard.

[0062] 2) Resource recycling: During the treatment process, SO2 is converted into recyclable H2SO3, which not only reduces pollutant emissions but also enables resource recycling and reduces treatment costs, resulting in good economic and environmental benefits.

[0063] 3) Prevention of secondary pollution: The design of ion exchange resin adsorption-regeneration, especially the chelating resin for NH4. + The adsorption and regeneration process avoids the secondary volatilization of ammonia.

[0064] 4) Compact integration: It adopts a modular structure design, with each unit having a clear function and being independent of each other, yet able to work together. This design is well-suited to the limited space in the laboratory, and also makes the operation and maintenance of the equipment more convenient, reducing the difficulty and workload of the operators.

[0065] After treatment, the emissions were tested and found to contain 3 ppm of NH3 and 15 mg / m³ of SO2. 3It meets the emission standards: NH3 < 5 ppm, SO2 < 20 mg / m³ 3 .

[0066] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An atmosphere furnace exhaust gas treatment device, connected to an atmosphere furnace (100) via a pipeline, capable of receiving exhaust gas containing SO2 and NH3 from the atmosphere furnace (100), characterized in that, The device includes: 1) A photocatalytic oxidation unit, comprising a reactor (200) having a liner (210) and the reactor (200) having a specific surface area > 200 m². 2 / g of honeycomb TiO2 catalyst (220) and a 200-320nm ultraviolet light source (230); 2) An adsorption treatment unit, comprising an ion exchange resin tower A (300) and an ion exchange resin tower B (400), wherein the ion exchange resin tower A (300) and the ion exchange resin tower B (400) are connected in series, wherein the ion exchange resin tower A (300) contains a strong acidic cation exchange resin (310) and a first spray liquid component; the ion exchange resin tower B (400) contains a chelating resin (410) and a second spray liquid component. 3) Monitoring unit, which includes a PLC controller, an NH3 laser analyzer (500) and an SO2 electrochemical sensor (600). The NH3 laser analyzer (500) and the SO2 electrochemical sensor (600) are respectively installed outside the outlet B (440) of the ion exchange resin tower B (400). The PLC controller is electrically connected to a 200-320nm ultraviolet light source (230), a first spray liquid component, a second spray liquid component, the NH3 laser analyzer (500) and the SO2 electrochemical sensor (600).

2. The atmosphere furnace exhaust gas treatment device according to claim 1, characterized in that, The honeycomb TiO2 catalyst (220) is longitudinally distributed in the reactor (200), and the 200-320nm ultraviolet light source (230) is located on the inner sidewall of the reactor (200) and is arranged towards the honeycomb TiO2 catalyst (220).

3. The atmosphere furnace exhaust gas treatment device according to claim 2, characterized in that, The reactor (200) is a quartz glass reactor (200), a borosilicate glass reactor (200), a soda-lime glass reactor (200), or an alumina single crystal reactor (200).

4. The atmosphere furnace exhaust gas treatment device according to claim 3, characterized in that, The material of the lining (210) is 316L stainless steel, 316 stainless steel, 2205 duplex steel, 440C martensitic stainless steel or 17-4PH precipitation hardening steel.

5. The atmosphere furnace exhaust gas treatment device according to claim 4, characterized in that, The ultraviolet light source (230) is a 254nm ultraviolet light source (230).

6. The atmosphere furnace exhaust gas treatment device according to claim 5, characterized in that, The air inlet A (330) of the ion exchange resin tower A (300) is located in the lower middle part, the air outlet A (340) is located at the top, and the water outlet A (350) is provided at the bottom of the ion exchange resin tower A (300); the air inlet B (430) of the ion exchange resin tower B (400) is located in the lower middle part, the air outlet B (440) is located at the top, and the water outlet B (450) is provided at the bottom of the ion exchange resin tower B (400). The air outlet A (340) of the ion exchange resin tower A (300) and the air inlet B (430) of the ion exchange resin tower B (400) are connected in series through a pipe (700).

7. The atmosphere furnace exhaust gas treatment device according to claim 6, characterized in that, The first spray liquid component includes a spray head A (320) located at the top of the tower, which is connected to an external pipeline so that the spray head A (320) can spray onto the strongly acidic cation exchange resin (310) to regenerate it; the second spray liquid component includes a spray head B (420) located at the top of the tower, which is connected to an external pipeline so that the spray head B (420) can spray onto the chelating resin (410) to regenerate it.

8. The atmosphere furnace exhaust gas treatment device according to claim 7, characterized in that, The strong acid cation exchange resin (310) is Amberlite IR-120, Dowex 50WX2, Dowex 50WX4, Indion 224, Indion 244, Purolite C100HMR, or Kyron-T-154; the chelating resin (410) is Dowex M4195 or Lewatit TP207.

9. The atmosphere furnace exhaust gas treatment device according to claim 7, characterized in that, It also includes a water storage tank A (360), the spray liquid is water, and the water storage tank A (360) is connected to the spray head A (320).

10. The atmosphere furnace exhaust gas treatment device according to claim 7, characterized in that, It also includes an HCl storage tank B, wherein the spray liquid is HCl, and the HCl storage tank B is connected to the spray head B (420).

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