Hydrogen peroxide oxidation tail gas adsorption device

Abstract

The application discloses a hydrogen peroxide oxidation tail gas adsorption device, which aims to solve the technical problem that the adsorption effect of toxic gas and harmful particles carried by hydrogen peroxide oxidation tail gas is not ideal in the prior art, so that the discharged hydrogen peroxide oxidation tail gas causes certain pollution to the ecological environment; the adsorption device comprises an adsorption box, a supporting frame is arranged at the bottom of the adsorption box, a conical air inlet box is arranged at the bottom of the adsorption box, a filter screen plate is arranged at the bottom end in the adsorption box and connected with the conical air inlet box, a first activated carbon adsorption screen plate is arranged at the top of the filter screen plate in the adsorption box, and a second activated carbon adsorption screen plate is arranged at the top end in the adsorption box; the hydrogen peroxide oxidation tail gas can be effectively and sufficiently adsorbed and filtered through the device, so that the pollution of the discharged hydrogen peroxide oxidation tail gas to the ecological environment is avoided.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen peroxide oxidation tail gas treatment technology, and specifically relates to a hydrogen peroxide oxidation tail gas adsorption device. Background Technology

[0002] Hydrogen peroxide is a good oxidant that is reduced to water without introducing impurities. It can be used to produce oxygen and for sterilization and disinfection. In nature, it exists only in trace amounts in rain, snow, and the sap of some plants. Initially, hydrogen peroxide was only used in medicine and military industry, but it has gradually been applied to a wide range of fields such as chemical synthesis, textiles, papermaking, environmental protection, food, medicine, metallurgy, and agriculture. In the use of hydrogen peroxide, its oxidation exhaust gas will pollute the environment if directly discharged, so exhaust gas adsorption devices are needed to adsorb and recover it.

[0003] A search revealed that publication number CN214862340U discloses a hydrogen peroxide oxidation tail gas adsorption device, including a three-way valve KV101. One end of the three-way valve is connected to the gas outlet of the expander unit, and the other two ends are connected to adsorption tanks A and B respectively. The gas outlets of the adsorption tanks are connected to the two gas inlets of the three-way valve at the oxidation tail gas outlet. The three-way valve KV101 is controlled by one actuator, while the opening and closing of the three-way valve at the oxidation tail gas outlet is controlled by two actuators. When changing adsorption tanks, the two actuators in the three-way valve at the oxidation tail gas outlet open two valves, ensuring that both valves at the oxidation tail gas outlet are open during adsorption tank switching, thus preventing system pressure buildup.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: In the above-mentioned application, activated carbon is placed in the adsorption tank to purify the exhaust gas and avoid atmospheric pollution. However, the purification effect of simply placing activated carbon to adsorb the hydrogen peroxide oxidation exhaust gas is relatively unsatisfactory, and it is impossible to fully adsorb and treat the toxic gases and harmful particles carried by the hydrogen peroxide oxidation exhaust gas.

[0005] Therefore, in order to improve the existing hydrogen peroxide oxidation tail gas adsorption device, a new type of hydrogen peroxide oxidation tail gas adsorption device is designed to overcome the above-mentioned technical defects and improve the overall practicality of the hydrogen peroxide oxidation tail gas adsorption device. Summary of the Invention

[0006] (1) Technical problems to be solved

[0007] In view of the shortcomings of the prior art, the purpose of this invention is to provide a hydrogen peroxide oxidation tail gas adsorption device. This adsorption device aims to solve the technical problem that the adsorption effect of the existing technology on the toxic gases and harmful particles carried by hydrogen peroxide oxidation tail gas is not ideal, so that the emission of hydrogen peroxide oxidation tail gas will cause certain pollution to the ecological environment.

[0008] (2) Technical solution

[0009] To solve the above-mentioned technical problems, the present invention provides a hydrogen peroxide oxidation tail gas adsorption device, which includes an adsorption box, a support frame installed at the bottom of the adsorption box, a conical air inlet box installed at the bottom of the adsorption box, a filter screen plate installed at the bottom of the adsorption box and the connection between the filter screen plate and the conical air inlet box, a first activated carbon adsorption screen plate installed at the top of the adsorption box, and a second activated carbon adsorption screen plate installed at the top of the adsorption box.

[0010] The first activated carbon adsorption mesh plate has several sets of through holes at equal intervals inside. Each set of through holes consists of a first arc groove, a second arc groove, and a third arc groove, and the third arc groove and the first arc groove are located at the upper and lower ends of the second arc groove, respectively.

[0011] When using the adsorption device of this technical solution, the hydrogen peroxide oxidation exhaust gas to be treated is first transported to the conical inlet box through the inlet pipe. After entering the conical inlet box, the hydrogen peroxide oxidation exhaust gas passes through the limiting component, and then sequentially passes through the filter screen plate, the first activated carbon adsorption screen plate, the activated carbon filter cylinder, and the second activated carbon for adsorption and filtration treatment. Finally, it is discharged from the exhaust pipe of the outlet box. Through the adsorption and filtration of the filter screen plate, the first activated carbon adsorption screen plate, the activated carbon filter cylinder, and the second activated carbon, not only are some harmful gases such as carbon monoxide and nitrogen dioxide contained in the hydrogen peroxide oxidation exhaust gas adsorbed, but also impurity particles carried by the hydrogen peroxide oxidation exhaust gas are removed. The filter purifies the hydrogen peroxide oxidation exhaust gas, thereby reducing its environmental pollution. Furthermore, when the hydrogen peroxide oxidation exhaust gas passes through the limiting component, the lower conical groove has a small upper opening and a large lower opening, while the upper inverted conical groove has a large upper opening and a small lower opening. The larger lower opening allows the hydrogen peroxide oxidation exhaust gas to enter quickly, while the smaller opening at the junction of the lower and upper inverted conical grooves restricts the gas flow, reducing its velocity. The larger upper opening of the upper inverted conical groove allows the reduced-velocity gas to contact and be adsorbed and purified by the filter screen. The gas then flows out through the upper inverted conical groove and passes through several sets of... The gas enters through a lower V-shaped groove, then passes through several sets of cylindrical grooves and finally an upper V-shaped groove. This combination of lower and upper V-shaped grooves increases the contact area between the filter plate and the gas, improving the filtration efficiency. Simultaneously, the cylindrical grooves restrict the gas flow, slowing it down and increasing the contact time for filtration, further enhancing the adsorption and filtration effect. The filter plate, made of activated alumina, adsorbs harmful gases and particulate matter in the hydrogen peroxide oxidation exhaust gas, achieving initial purification. Furthermore, the activated alumina material provides excellent high-temperature resistance. The system is designed to prevent damage to the filter plates from the high-temperature hydrogen peroxide oxidation exhaust gas. The combination of a first and second activated carbon adsorption plate allows for double-layer adsorption and filtration of the hydrogen peroxide oxidation exhaust gas inside the adsorption chamber, improving the purification effect and preventing the exhaust gas from carrying toxic gases and causing environmental pollution. Furthermore, the activated carbon filter cartridge further purifies the exhaust gas, effectively adsorbing harmful gases such as carbon monoxide and nitrogen dioxide, reducing environmental pollution and ensuring safe discharge of the hydrogen peroxide oxidation exhaust gas.

[0012] Preferably, the inner diameter of the first arc-shaped groove near the second arc-shaped groove is larger than the inner diameter of the other end, and the first arc-shaped groove and the third arc-shaped groove are symmetrically designed. The second activated carbon adsorption mesh plate has the same structure as the first activated carbon adsorption mesh plate. By setting the first activated carbon adsorption mesh plate and the second activated carbon adsorption mesh plate, the hydrogen peroxide oxidation tail gas inside the adsorption box can be subjected to double adsorption and filtration, thereby improving the purification effect of the hydrogen peroxide oxidation tail gas and preventing the hydrogen peroxide oxidation tail gas from carrying toxic gases and causing pollution to the environment after discharge.

[0013] Furthermore, the diameter of the center of the second arc-shaped groove is larger than the diameter of both ends, and the inner contour of the second arc-shaped groove has a "fat belly" structure design. By setting the second arc-shaped groove, the "fat belly" structure of the second arc-shaped groove can increase the contact surface between the first activated carbon adsorption mesh plate and the hydrogen peroxide oxidation tail gas, thereby improving the adsorption and filtration effect of the activated carbon adsorption mesh plate on the hydrogen peroxide oxidation tail gas.

[0014] Furthermore, support portions are provided on both sides of the filter plate and between it and the adsorption box. A connecting groove is provided at each position corresponding to the filter plate and several sets of third arc-shaped grooves. The filter plate is made of activated alumina material. Through the filter plate, the activated alumina material can adsorb harmful gases and particulate matter in the hydrogen peroxide oxidation exhaust gas, thereby purifying the gas. Activated alumina also has excellent high-temperature resistance, allowing the filter plate to be used in high-temperature environments, thus making it suitable for purifying hydrogen peroxide oxidation exhaust gas under some high-temperature conditions.

[0015] Furthermore, each set of connecting channels consists of an upper V-shaped channel, a cylindrical channel, and a lower V-shaped channel. The inner diameter of the upper V-shaped channel near the cylindrical channel is smaller than the inner diameter of the other end, and the inner diameter of the lower V-shaped channel near the cylindrical channel is smaller than the inner diameter of the other end. By configuring the connecting channels and limiting the flow through the cylindrical channel, the gas flow is slowed down. Combined with the design of the upper and lower V-shaped channels, compared to a vertical inner wall, this increases the contact area between the filter plate and the gas, thereby improving the filter plate's filtration efficiency.

[0016] Furthermore, the support frame includes four sets of support columns, with multiple sets of reinforcing ribs connecting two adjacent sets of support columns. The support frame provides stable support for the adsorption box, and the reinforcement from the multiple sets of ribs increases the frame's stability and rigidity, resulting in better support performance.

[0017] Furthermore, an exhaust box is installed on the top of the adsorption box, and an exhaust pipe is installed on the back side of the exhaust box. The exhaust box facilitates the discharge of the hydrogen peroxide oxidation exhaust gas after adsorption and filtration.

[0018] Furthermore, an air intake pipe is installed on the front of the conical air intake box. This air intake pipe facilitates the delivery of hydrogen peroxide oxidation exhaust gas into the device for adsorption and filtration treatment.

[0019] Furthermore, a limiting component is installed below the filter screen and inside the conical air intake box. The limiting component has an upper inverted conical groove and a lower conical groove inside, and the upper inverted conical groove and the lower conical groove are designed to be connected. The limiting component facilitates the contact and adsorption of the gas entering through the air intake pipe with the filter screen.

[0020] Furthermore, three sets of activated carbon filter cartridges are installed between the first and second activated carbon adsorption mesh plates. The three sets of activated carbon filter cartridges can effectively purify the hydrogen peroxide oxidation exhaust gas. This exhaust gas contains harmful gases such as carbon monoxide and nitrogen dioxide, which can be adsorbed by the activated carbon filter cartridges, thereby reducing the environmental pollution caused by the emitted hydrogen peroxide oxidation exhaust gas.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention utilizes a filter screen to adsorb harmful gases and particulate matter in hydrogen peroxide oxidation exhaust gas, thereby purifying the exhaust gas. The filter screen, made of activated alumina, possesses excellent high-temperature resistance, allowing for use in high-temperature environments and preventing damage from the high-temperature hydrogen peroxide oxidation exhaust gas. Combined with the special structure of the connecting grooves, the inner walls of the upper and lower V-shaped grooves, compared to a vertical inner wall, increase the contact area between the filter screen and the gas, improving the filtration effect. Simultaneously, the cylindrical grooves restrict the flow of gas, slowing its movement and increasing the contact time for filtration, further enhancing the adsorption and filtration effect, ensuring effective gas purification.

[0024] Secondly, the arrangement of the first activated carbon adsorption mesh plate, the second activated carbon adsorption mesh plate, and the activated carbon filter cartridge further purifies the hydrogen peroxide oxidation exhaust gas, effectively adsorbing harmful gases such as carbon monoxide and nitrogen dioxide, reducing the environmental pollution caused by the emitted hydrogen peroxide oxidation exhaust gas, and thus ensuring the safe discharge of the hydrogen peroxide oxidation exhaust gas. Combined with the "fat belly" structure of the second arc-shaped groove, the contact surface between the first activated carbon adsorption mesh plate and the hydrogen peroxide oxidation exhaust gas is increased, improving the adsorption and filtration effect of the activated carbon adsorption mesh plate on the hydrogen peroxide oxidation exhaust gas.

[0025] Furthermore, through the design of the filter screen, the first activated carbon adsorption screen, the activated carbon filter cylinder, and the second activated carbon, it can not only adsorb some harmful gases such as carbon monoxide and nitrogen dioxide contained in the hydrogen peroxide oxidation tail gas, but also filter the impurity particles carried by the hydrogen peroxide oxidation tail gas, thereby effectively purifying the hydrogen peroxide oxidation tail gas, reducing the pollution of the environment by the hydrogen peroxide oxidation tail gas, and preventing the emission of hydrogen peroxide oxidation tail gas from causing pollution to the ecological environment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0028] Figure 3 Dissection of the internal structure of the adsorption box of this invention Figure 1 ;

[0029] Figure 4 Dissection of the internal structure of the adsorption box of this invention Figure 2 ;

[0030] Figure 5 This is a schematic diagram of the structure of the first activated carbon adsorption mesh plate of the present invention;

[0031] Figure 6 This is an anatomical diagram of the structure of the first activated carbon adsorption mesh plate of the present invention;

[0032] Figure 7 This is an anatomical diagram of the internal structure of the filter screen of the present invention.

[0033] The labels in the attached diagram are as follows: 1. Adsorption box; 2. Support frame; 201. Support column; 202. Reinforcing rib; 3. Conical air inlet box; 301. Air inlet pipe; 4. Filter screen; 401. Support part; 402. Connecting groove; 402a. Upper V-shaped groove; 402b. Columnar groove; 402c. Lower V-shaped groove; 5. First activated carbon adsorption screen; 501. Through hole; 501a. First arc-shaped groove; 501b. Second arc-shaped groove; 501c. Third arc-shaped groove; 6. Second activated carbon adsorption screen; 7. Air outlet box; 8. Exhaust pipe; 9. Limiting component; 901. Upper inverted conical groove; 902. Lower conical groove; 10. Activated carbon filter cylinder. Detailed Implementation

[0034] This specific embodiment is a hydrogen peroxide oxidation tail gas adsorption device, the structural schematic diagram of which is shown below. Figures 1-7As shown, the adsorption device includes an adsorption box 1, a support frame 2 installed at the bottom of the adsorption box 1, a conical air inlet box 3 installed at the bottom of the adsorption box 1, a filter screen plate 4 installed at the bottom of the adsorption box 1 and the connection with the conical air inlet box 3, a first activated carbon adsorption screen plate 5 installed inside the adsorption box 1 and at the top of the filter screen plate 4, and a second activated carbon adsorption screen plate 6 installed at the top of the adsorption box 1.

[0035] In this embodiment, the specific structures of the first activated carbon adsorption mesh plate 5 and the second activated carbon adsorption mesh plate 6 are as follows:

[0036] The first activated carbon adsorption mesh plate 5 has several sets of through holes 501 evenly spaced inside. Each set of through holes 501 consists of a first arc-shaped groove 501a, a second arc-shaped groove 501b, and a third arc-shaped groove 501c. The third arc-shaped groove 501c and the first arc-shaped groove 501a are located at the upper and lower ends of the second arc-shaped groove 501b, respectively. The inner diameter of the first arc-shaped groove 501a near the second arc-shaped groove 501b is larger than the inner diameter of the other end. The first arc-shaped groove 501a and the third arc-shaped groove 501c have a symmetrical structure design. The second activated carbon adsorption mesh plate 6 has the same structure as the first activated carbon adsorption mesh plate 5. The diameter of the center of the second arc-shaped groove 501b is larger than the diameter of both ends. The inner contour of the second arc-shaped groove 501b has a "fat belly" structure design.

[0037] The second activated carbon adsorption mesh plate 6 has the same structure as the first activated carbon adsorption mesh plate 5. The second arc-shaped groove 501b with a "fat belly" structure can increase the contact surface between the first activated carbon adsorption mesh plate 5 and the hydrogen peroxide oxidation tail gas, thereby improving the adsorption and filtration effect of the activated carbon adsorption mesh plate on the hydrogen peroxide oxidation tail gas. By setting the first activated carbon adsorption mesh plate 5 and the second activated carbon adsorption mesh plate 6, the hydrogen peroxide oxidation tail gas inside the adsorption box 1 can be subjected to double adsorption and filtration, thereby improving the purification effect of the hydrogen peroxide oxidation tail gas and preventing the hydrogen peroxide oxidation tail gas from carrying toxic gases and causing pollution to the environment after discharge.

[0038] Secondly, in this embodiment, the specific structure of the filter screen 4 is as follows:

[0039] Support parts 401 are provided on both sides of the filter screen plate 4 and between it and the adsorption box 1. A connecting groove 402 is provided at the position corresponding to the filter screen plate 4 and several sets of third arc-shaped grooves 501c. The filter screen plate 4 is made of activated alumina material. Each set of connecting grooves 402 is composed of an upper V-shaped groove 402a, a cylindrical groove 402b and a lower V-shaped groove 402c. The inner diameter of the upper V-shaped groove 402a near the cylindrical groove 402b is smaller than the inner diameter of the other end. The inner diameter of the lower V-shaped groove 402c near the cylindrical groove 402b is smaller than the inner diameter of the other end.

[0040] When the hydrogen peroxide oxidation exhaust gas enters the adsorption chamber 1 from the conical inlet box 3, the harmful gases and particulate matter in the exhaust gas are adsorbed by the filter plate 4 made of activated alumina material, thus purifying the exhaust gas. Furthermore, the filter plate 4 made of activated alumina material has good high-temperature resistance, making it suitable for use in high-temperature environments and preventing damage from the high-temperature hydrogen peroxide oxidation exhaust gas. Therefore, it is suitable for purifying hydrogen peroxide oxidation exhaust gas under some high-temperature conditions. After the hydrogen peroxide oxidation exhaust gas passes through the filter plate 4, it enters the first activated carbon adsorption plate 5. Previously, the hydrogen peroxide oxidation exhaust gas entering the filter plate 4 passed through several sets of lower V-shaped grooves 402c, then through several sets of cylindrical grooves 402b, and then through upper V-shaped grooves 402a. Compared with the vertical inner wall, the combination of several sets of lower V-shaped grooves 402c and upper V-shaped grooves 402a increases the contact area between the filter plate 4 and the gas, improving the filtration effect of the filter plate 4. At the same time, the cylindrical grooves 402b can limit the flow of gas, making the gas flow slow down, thereby increasing the contact filtration time of the gas, further improving the adsorption filtration effect, and enabling the gas to be effectively purified.

[0041] Furthermore, in this embodiment, the specific structure of the limiting member 9 is as follows:

[0042] Below the filter plate 4 and inside the conical air inlet box 3, a limiting component 9 is installed. The limiting component 9 has an upper inverted conical groove 901 and a lower conical groove 902 inside, and the upper inverted conical groove 901 and the lower conical groove 902 are designed to be connected. The limiting component 9 facilitates the contact and adsorption of the gas entering through the air inlet pipe 301 with the filter plate 4. The lower conical groove 902 has a small upper opening and a large lower opening, while the upper inverted conical groove 901 has a large upper opening and a small lower opening. The larger lower opening facilitates the rapid entry of hydrogen peroxide oxidation exhaust gas, while the small opening at the junction of the lower conical groove 902 and the upper inverted conical groove 901 restricts the gas flow and reduces the gas velocity. The larger upper opening of the upper inverted conical groove 901 allows the gas with reduced flow velocity to contact the filter plate 4 and be adsorbed and purified.

[0043] In addition, three sets of activated carbon filter cartridges 10 are installed between the first activated carbon adsorption mesh plate 5 and the second activated carbon adsorption mesh plate 6. The three sets of activated carbon filter cartridges 10 can effectively purify the hydrogen peroxide oxidation exhaust gas. The hydrogen peroxide oxidation exhaust gas contains some harmful gases, such as carbon monoxide and nitrogen dioxide. These gases can be adsorbed by the activated carbon filter cartridges 10, thereby reducing the environmental pollution caused by the emitted hydrogen peroxide oxidation exhaust gas. The support frame 2 includes four sets of support columns 201, and multiple sets of reinforcing ribs 202 are connected between two adjacent sets of support columns 201. The frame 2 provides stable support for the adsorption box 1. Combined with the reinforcement of multiple sets of reinforcing ribs 202, the support frame 2 is strengthened and its rigidity is increased, resulting in better support. An exhaust box 7 is installed on the top of the adsorption box 1, which facilitates the discharge of hydrogen peroxide oxidation tail gas after adsorption and filtration. An exhaust pipe 8 is installed on the back side of the exhaust box 7, and an intake pipe 301 is installed on the front of the conical intake box 3. The intake pipe 301 facilitates the transportation of hydrogen peroxide oxidation tail gas into the interior of the device, thereby facilitating the adsorption and filtration of the hydrogen peroxide oxidation tail gas by the device.

[0044] Working Principle: When using the device of this technical solution, the hydrogen peroxide oxidation tail gas to be treated is first transported to the conical air intake box 3 through the air intake pipe 301. After entering the conical air intake box 3, the hydrogen peroxide oxidation tail gas passes through the limiting member 9, and then sequentially passes through the filter screen plate 4, the first activated carbon adsorption screen plate 5, the activated carbon filter cylinder 10, and the second activated carbon for adsorption and filtration treatment. Finally, it is discharged from the exhaust pipe 8 of the exhaust box 7. Through the adsorption and filtration of the filter screen plate 4, the first activated carbon adsorption screen plate 5, the activated carbon filter cylinder 10, and the second activated carbon, not only are some harmful gases such as carbon monoxide and nitrogen dioxide contained in the hydrogen peroxide oxidation tail gas adsorbed, but also impurity particles carried by the hydrogen peroxide oxidation tail gas are filtered out, thus purifying the hydrogen peroxide oxidation tail gas. This reduces the environmental pollution caused by hydrogen peroxide oxidation exhaust gas. Furthermore, when the hydrogen peroxide oxidation exhaust gas passes through the limiting component 9, the lower conical groove 902 has a small upper opening and a large lower opening, while the upper inverted conical groove 901 has a large upper opening and a small lower opening. The larger lower opening facilitates the rapid entry of the hydrogen peroxide oxidation exhaust gas, while the smaller opening at the junction of the lower conical groove 902 and the upper inverted conical groove 901 restricts the flow of gas, reducing its velocity. The larger upper opening of the upper inverted conical groove 901 allows the reduced-velocity gas to contact and be adsorbed and purified by the filter screen 4. At this point, the gas flows out through the upper inverted conical groove 901, then enters the filter screen 4 through several sets of lower V-shaped grooves 402c, and then passes through several sets of cylindrical grooves 40... 2b Then, passing through the upper V-shaped groove 402a, and several sets of lower V-shaped grooves 402c and several sets of upper V-shaped grooves 402a, the contact surface between the filter plate 4 and the gas is increased, improving the filtration effect of the filter plate 4. Simultaneously, the columnar groove 402b restricts the flow of gas, slowing its flow and increasing the contact filtration time, further enhancing the adsorption filtration effect. The filter plate 4, made of activated alumina material, adsorbs harmful gases and particulate matter in the hydrogen peroxide oxidation tail gas, achieving initial purification. Furthermore, the activated alumina material filter plate 4 has good high-temperature resistance, preventing damage from the high-temperature hydrogen peroxide oxidation tail gas. The first activated carbon... The adsorption mesh plate 5 and the second activated carbon adsorption mesh plate 6 enable double adsorption and filtration of the hydrogen peroxide oxidation tail gas inside the adsorption box 1, improving the purification effect of the hydrogen peroxide oxidation tail gas and preventing the hydrogen peroxide oxidation tail gas from carrying toxic gases and causing environmental pollution after discharge. In addition, the hydrogen peroxide oxidation tail gas is further purified by the filtration effect of the activated carbon filter cartridge 10, so that harmful gases such as carbon monoxide and nitrogen dioxide are effectively adsorbed, reducing the pollution of the environment by the hydrogen peroxide oxidation tail gas after discharge, thus ensuring the safe discharge of hydrogen peroxide oxidation tail gas. The entire operation process is simple and convenient. This invention is designed to facilitate effective and sufficient adsorption and filtration of hydrogen peroxide oxidation tail gas, avoiding pollution of the ecological environment caused by the discharge of hydrogen peroxide oxidation tail gas.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

Claims

1. An adsorption device for hydrogen peroxide oxidation tail gas, the adsorption device comprising an adsorption box (1), characterized in that: The bottom of the adsorption box (1) is provided with a supporting frame (2), the bottom of the adsorption box (1) is provided with a conical air inlet box (3), the bottom end of the inside of the adsorption box (1) and the joint of the conical air inlet box (3) are provided with a filter screen plate (4), the inside of the adsorption box (1) and the top of the filter screen plate (4) are provided with a first activated carbon adsorption screen plate (5), and the top end of the inside of the adsorption box (1) is provided with a second activated carbon adsorption screen plate (6). A plurality of groups of through holes (501) are formed in the first activated carbon adsorption screen plate (5) at equal intervals, each group of through holes (501) is composed of a first arc-shaped groove (501a), a second arc-shaped groove (501b) and a third arc-shaped groove (501c), and the third arc-shaped groove (501c) and the first arc-shaped groove (501a) are located at the upper and lower ends of the second arc-shaped groove (501b) respectively. The internal diameter of the first arc-shaped groove (501a) near one end of the second arc-shaped groove (501b) is greater than that of the other end, and the first arc-shaped groove (501a) and the third arc-shaped groove (501c) are designed in a symmetrical structure, and the second activated carbon adsorption screen plate (6) has the same structure as the first activated carbon adsorption screen plate (5). The diameter of the center of the second arc-shaped groove (501b) is greater than that of the two ends, and the internal contour of the second arc-shaped groove (501b) is designed in a "bulging" structure. Supporting portions (401) are arranged between the two sides of the filter screen plate (4) and the adsorption box (1), and the filter screen plate (4) is provided with a plurality of groups of communicating grooves (402) corresponding to the positions of the third arc-shaped grooves (501c), and the filter screen plate (4) is made of activated alumina material. Each group of communicating grooves (402) is composed of an upper V-shaped groove (402a), a cylindrical groove (402b) and a lower V-shaped groove (402c), the internal diameter of the upper V-shaped groove (402a) near one end of the cylindrical groove (402b) is smaller than that of the other end, and the internal diameter of the lower V-shaped groove (402c) near one end of the cylindrical groove (402b) is smaller than that of the other end.

2. The hydrogen peroxide oxidation tail gas adsorption device according to claim 1, characterized in that: The supporting frame (2) comprises four groups of supporting columns (201), and a plurality of groups of reinforcing ribs (202) are connected between two adjacent supporting columns (201).

3. The hydrogen peroxide oxidation tail gas adsorption device according to claim 1, characterized in that: An air outlet box (7) is arranged at the top of the adsorption box (1), and an exhaust pipe (8) is arranged at the back of the air outlet box (7).

4. The hydrogen peroxide oxidation tail gas adsorption device according to claim 1, characterized in that: A gas inlet pipe (301) is arranged on the front of the conical air inlet box (3).

5. The hydrogen peroxide oxidation tail gas adsorption device according to claim 1, characterized in that: A limiting piece (9) is arranged below the filter screen plate (4) and in the conical air inlet box (3), an upper inverted conical groove (901) and a lower conical groove (902) are formed in the limiting piece (9), and the upper inverted conical groove (901) and the lower conical groove (902) are designed in a communicating structure.

6. The hydrogen peroxide oxidation tail gas adsorption device according to claim 1, characterized in that: Three groups of activated carbon filter cartridges (10) are arranged between the first activated carbon adsorption screen plate (5) and the second activated carbon adsorption screen plate (6).

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