A surface-modified high-efficiency AK adsorption activated carbon cleaning device and cleaning method

Abstract

This invention belongs to the field of cleaning equipment technology, specifically relating to a surface-modified high-efficiency adsorption AK activated carbon cleaning device and method. It includes a cleaning tank containing an activation cleaning chamber, a steam chamber, and a driving assembly. The activation cleaning chamber has several through holes and a first heating module. The driving assembly is connected to the activation cleaning chamber and drives its rotation. The steam chamber has a second heating module. Water in the steam chamber is heated by the second heating module to form steam, which is then directed into the activation cleaning chamber containing the activated carbon for activation. The activated carbon in the activation cleaning chamber absorbs the steam, expands its pores, and the rotation of the activation cleaning chamber causes collisions, thus cleaning the adsorbed heavy metal particles. First, the activated carbon is activated and expanded through steam and heating, loosening the metal particles within the pore structure. Simultaneously, the rotation and vertical vibration of the activation tank dislodge the metal particles from the activated carbon, improving the cleaning efficiency and effectiveness of the activated carbon.

Description

Technical Field

[0001] This invention belongs to the field of cleaning equipment technology, specifically relating to a surface-modified high-efficiency adsorption AK activated carbon cleaning device and cleaning method. Background Technology

[0002] Activated carbon, a material with a highly porous structure and strong adsorption capacity, is widely used in water treatment, air purification, food decolorization, pharmaceutical purification, and industrial waste gas treatment. However, during long-term use, activated carbon gradually adsorbs various organic, inorganic, and microbial metabolic products, leading to a decrease in its adsorption capacity or even its failure. Therefore, cleaning and regeneration are crucial to extend the lifespan of activated carbon, reduce operating costs, and minimize solid waste emissions. To ensure effective adsorption of pollutants, reused activated carbon is typically mixed with newly used activated carbon. Activated carbon cleaning, a key step in its regeneration, has evolved from traditional physicochemical methods to highly efficient and environmentally friendly processes. Traditional cleaning methods primarily employ basic techniques such as vibration, water washing, acid washing, or alkaline washing to remove surface-adsorbed organic matter, metal ions, and other impurities.

[0003] AK activated carbon is a type of surface-modified activated carbon. By introducing specific functional groups (such as amino, carboxyl, and sulfonic acid groups), its selective adsorption capacity for specific pollutants is significantly enhanced. Compared with traditional activated carbon, AK activated carbon exhibits higher adsorption efficiency and stability in complex environments (such as wastewater or exhaust gas containing heavy metals and organic pollutants). AK activated carbon is particularly advantageous in the removal of heavy metals and polar organic compounds, playing a greater role in complex pollution control. However, when cleaning AK activated carbon using conventional physical cleaning methods (such as vibration cleaning) to attempt to remove the metal particles, these particles are difficult to effectively break or loosen by mechanical force due to their inherent structural stability. On the contrary, the violent vibration process may cause these stubborn particles to embed more deeply or "wedge" more tightly into the complex, multi-layered pore network structure of the activated carbon. Therefore, compared to ordinary activated carbon cleaning that adsorbs organic pollutants (which may be easily desorbed or broken down by vibration), cleaning modified activated carbon that has adsorbed heavy metals using only vibration in the initial stage is not only inefficient but may also backfire, causing metal particles to become "stuck" deep in the pores, making them extremely difficult to remove completely. This incomplete cleaning not only reduces the regeneration efficiency and service life of the activated carbon but also increases operating costs and may even pose a risk of secondary pollution due to the slow release of residual heavy metals. Based on this, a surface-modified high-efficiency AK activated carbon cleaning device and method are proposed. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this invention provides a surface-modified high-efficiency AK adsorption activated carbon cleaning device and cleaning method.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] The present invention discloses a surface-modified high-efficiency AK adsorption activated carbon cleaning device, comprising a cleaning tank, wherein the cleaning tank is provided with an activation cleaning chamber, a steam chamber and a driving component. The activation cleaning chamber has several through holes and is provided with a first heating module. The driving component is connected to the activation cleaning chamber and drives the activation cleaning chamber to rotate. The steam chamber is provided with a second heating module. Water in the steam chamber is heated by the second heating module to form water vapor, which is then introduced into the activation cleaning chamber containing activated carbon for activation. The activated carbon in the activation cleaning chamber is activated and expanded by absorbing water vapor, and the rotation of the activation cleaning chamber causes collisions to clean the adsorbed heavy metal particles.

[0007] Furthermore, the activation and cleaning chamber also includes an activation tank, a plurality of through holes are formed on the wall of the activation tank, the first heating module is disposed on the activation tank, the activation tank is rotatably disposed in the cleaning chamber, and the driving component is connected to the activation tank and drives the activation tank to rotate.

[0008] Furthermore, the driving assembly includes a rotating mechanism, which includes a connecting ring. A motor and a load-bearing gear connected to the motor are horizontally arranged inside the connecting ring. The activation cleaning chamber also includes a transition cylinder. An outer circumferential flange is provided on the outer side of the transition cylinder. The bottom of the outer circumferential flange is provided with teeth that mesh with the load-bearing gear. The motor drives the transition cylinder to rotate through the load-bearing gear. The transition cylinder is hollow and has an inner circumferential flange on its inner side. The activation tank is placed on the inner circumferential flange of the transition cylinder, and the transition cylinder is sleeved outside the activation tank.

[0009] Furthermore, the activation and cleaning chamber also includes a cover plate, which is hinged to the transition cylinder and movably covers the activation tank within the inner circumferential flange. The outer side of the cover plate is provided with a feed inlet and an exhaust pipe that connect to the activation tank, and the inner side of the cover plate is provided with a stirring rod that extends into the activation tank.

[0010] Furthermore, the steam chamber is located below the activation cleaning chamber.

[0011] Furthermore, the drive assembly includes several sets of cylinders, the fixed ends of the several sets of cylinders are connected to the inner wall of the cleaning tank, the movable sections of the cylinders are connected to the connecting ring, the several sets of cylinders drive the activation cleaning chamber to rise and fall, and when the activated carbon is activated and rotated by steam for cleaning, it rises and leaves the steam chamber, and when the activated carbon is rinsed, it descends and extends into the steam chamber.

[0012] Furthermore, a transmission gear is rotatably provided on the side wall of the cleaning tank, and the transmission gear meshes with the top of the side wall of the steam chamber. The bottom of the transition cylinder is provided with teeth. When the cylinder drives the transition cylinder to mesh with the transmission gear when the activated carbon is immersed in clean water or acid or alkali solution, the transition cylinder meshes with the transmission gear and drives the steam chamber and the transition cylinder to rotate in opposite directions.

[0013] Furthermore, a drain outlet is provided at the bottom of the steam chamber.

[0014] Furthermore, the steam chamber is located below a cavity, and the drain outlet is connected to a central air pipe on one side of the cavity. Several arc-shaped air inlet pipes are connected to the side of the central air pipe, and the rotating windward side of the arc-shaped air inlet pipes is provided with an air inlet groove that is connected to the central air pipe.

[0015] A method for cleaning surface-modified, high-efficiency AK-adsorbing activated carbon, applicable to a method for cleaning surface-modified, high-efficiency AK-adsorbing activated carbon, includes the following steps:

[0016] S1: Pretreatment: Remove impurities from the surface of activated carbon;

[0017] S2: Physical cleaning: Activated carbon is placed in the activation tank. The steam generated by heating water in the steam chamber activates and expands the pores of the activated carbon. At the same time, the motor drives the activation tank to rotate through the load-bearing gear and the cylinder drives the activation tank to rise and fall, which generates a scattering effect to separate heavy metal particles from the activated carbon.

[0018] S3: Chemical cleaning: Add water or acid / alkali solution to the steam chamber, and immerse the activation tank in the water or acid / alkali solution through the cylinder to clean and dissolve organic and heavy metal pollutants. The transition cylinder rotates in the opposite direction to the steam chamber for cleaning; and the cleaned liquid is discharged.

[0019] S4: Neutralization and rinsing: Add clean water or neutralization solution to rinse off the residual chemicals on the activated carbon, and drain the rinsing liquid;

[0020] S5: Drying: Open the drain outlet and rotate the arc-shaped air inlet pipe to introduce air into the central air pipe, and heat the air through the second heating module to dry the activated carbon.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) While the pore structure of activated carbon is increased by secondary activation so that heavy metal particles can be loosened, the activated cleaning chamber is driven to rotate by the drive component. The activated carbon in the activated cleaning chamber rotates while being activated. The mutual collision force of the rotation can accelerate the shedding of heavy metal particles in the pore structure of activated carbon. The combination of multiple cleaning methods forms a better cleaning effect, which can shorten the cleaning time and improve the cleaning efficiency of activated carbon.

[0023] (2) When the activation tank and transition tank are lowered by the cylinder until they are immersed in the steam chamber, the bottom of the transition tank meshes with the transmission gear. When the motor drives the transition tank to rotate through the load-bearing gear, the direction of rotation of the transition tank is opposite to that of the steam chamber because there is a transmission gear between the transition tank and the steam chamber. The direction of rotation of the activated carbon in the activation tank is opposite to that of the liquid in the steam chamber, which can form a faster mutual contact speed. Therefore, the liquid has a better flushing effect on the activated carbon and a better cleaning effect.

[0024] (3) In the drying step, the transition cylinder needs to be driven by the cylinder to descend and mesh with the transmission gear. When the steam chamber rotates, the central air pipe at its bottom rotates. The rotation of the central air pipe causes the arc-shaped air inlet pipe to rotate as well. After the arc-shaped air inlet pipe rotates, the air inlet groove on its windward side can push the external air into the steam chamber. The steam chamber is equipped with a second heating module. The first heating module and the second heating module are both electrically connected to the control module. Therefore, the air will be heated after passing through the steam chamber, forming a flowing high-temperature airflow, which can dry the activated carbon. During the drying process, the activation tank continues to rotate, keeping the activated carbon in an active state, and the drying efficiency is higher. Attached Figure Description

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

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

[0027] Figure 2 This is a schematic diagram of the cover plate in the open state of the present invention;

[0028] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0030] Explanation of reference numerals in the attached drawings: 1. Cleaning tank; 2. Transition cylinder; 3. Connecting ring; 4. Cylinder; 5. Activation tank; 6. Cover plate; 7. Feed inlet; 8. Exhaust pipe; 9. Stirring rod; 10. Steam chamber; 11. Central air pipe; 12. Spiral air inlet pipe; 13. Second heating module; 14. First heating module; 15. Motor; 16. Load-bearing gear; 17. Transmission gear. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0032] like Figures 1-4 As shown, the present invention discloses a surface-modified high-efficiency AK adsorption activated carbon cleaning device, comprising a cleaning tank 1, wherein the cleaning tank 1 is provided with an activation cleaning chamber, a steam chamber 10 and a driving component. The steam chamber 10 is a barrel structure. The activation cleaning chamber has several through holes and is provided with a first heating module 14. The driving component is connected to the activation cleaning chamber and drives the activation cleaning chamber to rotate. The steam chamber 10 is provided with a second heating module 13. The water in the steam chamber 10 is heated by the second heating module 13 to form water vapor and is introduced into the activation cleaning chamber containing activated carbon for activation. The activated carbon in the activation cleaning chamber is activated and expanded by absorbing water vapor and is used to clean the adsorbed heavy metal particles by rotating and colliding with the activated cleaning chamber.

[0033] Because AK activated carbon adsorbs a large amount of heavy metal pollutants, the heavy metal pollutant particles are stably trapped in the pore structure of the activated carbon. When cleaning AK activated carbon, if conventional physical cleaning methods (such as vibration cleaning) are used to try to peel them off, these metal particles are difficult to be effectively broken or loosened by mechanical force due to their inherent structural stability. At the same time, there are many elements in the heavy metal pollutants, making it difficult to clean them with a single method.

[0034] To achieve better cleaning results and efficiency, activated carbon is placed in the activation cleaning chamber, and clean water is added to the steam chamber 10. The activated carbon is then heated by the first heating module 14 on the activation cleaning chamber to a temperature that can form an activation reaction, such as 800℃-900℃. The clean water in the steam chamber 10 is heated to boiling by the second heating module 13, and the resulting steam enters the activation cleaning chamber through the through hole. The high temperature and steam activate the activated carbon. Under the action of secondary activation, the original pore structure on the activated carbon gradually expands and forms a new pore structure. By expanding the pore structure, the heavy metal particles in the pore structure can be loosened and can be more easily cleaned out by the subsequent physical and chemical cleaning processes, which can shorten the cleaning time and improve the cleaning effect.

[0035] While conventional activated carbon cleaning processes typically involve vibration or solution cleaning, and a single method is sufficient for ordinary activated carbon to meet reuse requirements, AK activated carbon used in environmental remediation adsorbs a large number of heavy metal particles. Incomplete cleaning using a single method not only reduces the regeneration efficiency and lifespan of the activated carbon but also increases operating costs and may even pose a risk of secondary pollution due to the slow release of residual heavy metals. Therefore, a combination of multiple cleaning methods is needed to achieve better cleaning results. By secondary activation of the activated carbon to increase its pore structure and loosen heavy metal particles, a drive component can rotate the activation cleaning chamber. This causes the activated carbon within the chamber to rotate while being activated, and the mutual collision forces from the rotation accelerate the shedding of heavy metal particles from the activated carbon's pore structure, resulting in a better cleaning effect.

[0036] In one embodiment, the activation cleaning chamber further includes an activation tank 5, with several through holes formed on the wall of the activation tank 5. A first heating module 14 is disposed on the activation tank 5. The activation tank 5 is rotatably disposed in the cleaning box 1. A driving component is connected to the activation tank 5 and drives the activation tank 5 to rotate. The activation tank 5 is used to hold activated carbon. The through holes on the wall of the activation tank 5 are used to allow steam to be generated in the steam chamber 10 and then introduced into the activation tank 5. When the driving component is started, the activation tank 5 rotates under the action of the driving component.

[0037] In the above embodiments, when multiple batches of cleaning are required, activated carbon needs to be poured into the activation tank 5, and after cleaning, the activated carbon needs to be poured out. However, in the existing structure, the activated carbon can only be scooped out of the activation tank 5 by external equipment, resulting in low work efficiency. In order to improve the efficiency during use, in one embodiment, the driving component includes a rotating mechanism, which includes a connecting ring 3. A motor 15 and a load-bearing gear 16 connected to the motor 15 are horizontally arranged inside the connecting ring 3. The activation cleaning chamber also includes a transition cylinder 2. An outer circumferential flange is provided on the outside of the transition cylinder 2. The bottom of the outer circumferential flange is provided with teeth and meshes with the load-bearing gear 16. The motor 15 drives the transition cylinder 2 to rotate through the load-bearing gear 16. The transition cylinder 2 is hollow and has an inner circumferential flange on its inner side. The activation tank 5 is placed on the inner circumferential flange of the transition cylinder 2, and the transition cylinder 2 is sleeved outside the activation tank 5.

[0038] To facilitate the simultaneous rotation of the activation tank 5 and the subsequent emptying of the activated carbon, the connecting ring 3 of the rotating mechanism is slidably positioned within the cleaning tank 1. A groove is provided on the inner surface of the connecting ring 3, allowing the outer circumferential flange of the transition cylinder 2 to be embedded within the groove. A motor 15 and a load-bearing gear 16 are located at the bottom inner side of the groove, enabling the outer circumferential flange of the transition cylinder 2 to mesh with the load-bearing gear 16. Since the bottom teeth of the outer circumferential flange form a ring, when the motor 15 is energized, it drives the load-bearing gear 16 to rotate, which in turn drives the transition cylinder 2 to rotate. A control module, electrically connected to the motor 15, is also located inside the cleaning tank 1, controlling the start and stop of the motor 15. Since the outer circumferential flange of the transition cylinder 2 needs to be embedded in the groove of the connecting ring 3 to ensure a stable connection between the two, and the diameter of the outer circumferential flange is larger than the diameter of the groove of the connecting ring 3, the bottom of the groove of the connecting ring 3 is detachable for easy installation. Before installation, the bottom of the groove is removed, and then the outer circumferential flange of the transition cylinder 2 is placed into the groove. Then the bottom of the groove is reconnected so that the outer circumferential flange of the transition cylinder 2 is embedded in the groove.

[0039] The inner circumferential flange of the transition cylinder 2 extends inward, and the top of the inner circumferential flange is lower than the top of the transition cylinder 2, thus forming a concave structure at the top of the transition cylinder 2, allowing the edge of the activation bucket 5 to rest on the inner circumferential flange. During the activation process, activated carbon is placed in the activation bucket 5, and after activation, the entire activation bucket 5 can be removed from the transition cylinder 2 to pour out all the activated carbon, avoiding the need to repeatedly scoop out the activated carbon.

[0040] Furthermore, the activation and cleaning chamber also includes a cover plate 6, which is hinged to the transition cylinder 2. The cover plate 6 is movably pressed onto the activation tank 5 inside the inner circumferential flange. The outer side of the cover plate 6 is provided with a feed inlet 7 and an exhaust pipe 8 that connect to the activation tank 5. The inner side of the cover plate 6 is provided with a stirring rod 9 that extends into the activation tank 5.

[0041] Because the activation tank 5 tends to rotate relative to the transition tank 2 when the transition tank 2 rotates, a cover plate 6 is installed on the transition tank 2 to avoid this problem. When the cover plate 6 is closed, the feed inlet 7 at its top can be used to add activated carbon into the activation tank 5 and to observe the activated carbon. In the working state, the feed inlet 7 needs to be closed. When the cover plate 6 is closed on the activation tank 5, it and the transition tank 2 squeeze each other, preventing relative rotation between the activation tank 5 and the transition tank 2. The exhaust pipe 8 on the cover plate 6 is used to collect the large amount of carbon monoxide and hydrogen gas generated during activation inside the activation tank 5, as well as heavy metal particles separated from the activated carbon. The heavy metal particles are carried out under high temperature and airflow and discharged from the exhaust pipe 8. To avoid environmental pollution, a gas collection device needs to be connected to the outlet of the exhaust pipe 8 to collect the discharged gas. The stirring rod 9 at the bottom of the cover plate 6 is used to make the activated carbon rotate and collide with the stirring rod 9 when the activation tank 5 rotates, knocking off the heavy metal particles on the activated carbon. Because the stirring rod 9 is relatively long, to avoid interference between the stirring rod 9 and the inner wall of the activation tank 5 when the cover plate 6 is open, the width of the stirring rod 9 extending horizontally gradually decreases from top to bottom. Simultaneously, an ultrasonic module can be installed on the horizontally extending portion of the stirring rod 9. The ultrasonic module is electrically connected to the control module. By coordinating the high-frequency vibration of the ultrasonic module during the activation process, the vibration effect on the activated carbon can be effectively improved, making it easier for heavy metal particles in its internal pore structure to detach.

[0042] In one embodiment, the steam chamber 10 is located below the activation and cleaning chamber. Since the temperature of the steam is high, the steam will move upward after it is formed in the steam chamber 10. By placing the steam chamber 10 below the activation and cleaning chamber, the activated carbon in the activation tank 5 can have better contact with the steam, resulting in higher activation efficiency.

[0043] In the above embodiments, the activation tank 5 is driven to rotate only by the rotating mechanism in the drive assembly. The rotation of the activation tank 5 causes the activated carbon inside to rotate, thereby colliding with each other to achieve the cleaning effect. However, a single motion mode is not enough to make the activated carbon inside the activation tank 5 form an effective collision. In order to improve the collision effect of the activated carbon and achieve higher cleaning efficiency, in one embodiment, the drive assembly includes several sets of cylinders 4. The fixed ends of the several sets of cylinders 4 are connected to the inner wall of the cleaning tank 1, and the movable sections of the cylinders 4 are connected to the connecting ring 3. The several sets of cylinders 4 drive the activation cleaning chamber to rise and fall. When the activated carbon is activated and rotated by steam for cleaning, it rises and leaves the steam chamber 10. When the activated carbon is rinsed, it falls and extends into the steam chamber 10.

[0044] The activation tank 5 and the transition cylinder 2 are raised and lowered by cylinder 4. Since the cleaning of activated carbon is divided into multiple steps, different operations are required for the activated carbon in different steps. In the physical cleaning stage, the activation tank 5 needs to be moved away from the clean water surface in the steam chamber 10, and only the water vapor generated by the steam chamber 10 is used for activation. Therefore, in the physical cleaning stage, cylinder 4 controls the separation of the activation tank 5 and the transition cylinder 2 from the liquid surface of the steam chamber 10. In order to improve the vibration effect on the activated carbon in the activation tank 5, cylinder 4 moves up and down above the liquid surface of the steam chamber 10, so that the activation tank 5 is raised and lowered while rotating. The activated carbon inside can form a scattering effect, thus improving the physical cleaning effect of the activated carbon.

[0045] During the chemical cleaning stage, since the activated carbon needs to be immersed in clean water or acid / alkali solutions for rinsing, the activation tank 5 needs to be submerged into the steam chamber 10 through the cylinder 4, so that the activated carbon can be soaked and cleaned by clean water or acid / alkali solutions. During this process, the activation tank 5 rotates continuously, so that the activated carbon can come into more uniform contact with the liquid, and the heavy metal particles can be washed away or dissolved by the liquid.

[0046] In order to further improve the cleaning effect, in one embodiment, a transmission gear 17 is rotatably provided on the side wall of the cleaning tank 1. The transmission gear 17 meshes with the top of the side wall of the steam chamber 10. The bottom of the transition cylinder 2 is provided with teeth. When the activated carbon is immersed in clean water or acid or alkaline solution, the cylinder 4 drives the transition cylinder 2 to mesh with the transmission gear 17. The transition cylinder 2 meshes with the transmission gear 17 and drives the steam chamber 10 and the transition cylinder 2 to rotate in opposite directions.

[0047] When the activation tank 5 and the transition tank 2 are lowered by the cylinder 4 until they are immersed in the steam chamber 10, the bottom of the transition tank 2 simultaneously engages with the transmission gear 17. When the motor 15 drives the transition tank 2 to rotate through the load-bearing gear 16, the rotation direction of the transition tank 2 is opposite to that of the steam chamber 10 because the transmission gear 17 is provided between the transition tank 2 and the steam chamber 10. The rotation direction of the activated carbon in the activation tank 5 is opposite to that of the liquid in the steam chamber 10, which can form a faster mutual contact speed. Therefore, the liquid has a better flushing effect on the activated carbon and a better cleaning effect.

[0048] Furthermore, a drain outlet is provided at the bottom of the steam chamber 10, and a baffle is provided at the drain outlet. The baffle is an electrically operated baffle, which controls the opening and closing of the drain outlet through an electrical connection with the control module. Since the cleaning of activated carbon is divided into physical cleaning stage and chemical cleaning stage, different liquids need to be added for cleaning in different stages. Therefore, the liquid is drained through the drain outlet after each cleaning. In order to facilitate the addition of liquid into the steam chamber 10, the cleaning box 1 has movable doors that can be opened and closed at corresponding positions in the activation cleaning chamber and the steam chamber 10.

[0049] Since activated carbon needs to be dried after cleaning, existing drying equipment requires independent power supply. In this solution, heating is required during cleaning, and the use of multiple electrical devices can easily lead to an increase in failure rate. To avoid this risk, in one embodiment, the steam chamber 10 is hollow below, and the drain outlet is connected to a central air pipe 11 on one side of the hollow. Several arc-shaped air inlet pipes are connected to the side of the central air pipe 11, and the rotating windward side of the arc-shaped air inlet pipes is provided with an air inlet groove that is connected to the central air pipe 11.

[0050] In the drying process, the cylinder 4 drives the transition cylinder 2 to descend and mesh with the transmission gear 17. When the steam chamber 10 rotates, the central air pipe 11 at its bottom rotates. The rotation of the central air pipe 11 causes the arc-shaped air inlet pipe to rotate as well. After the arc-shaped air inlet pipe rotates, the air inlet groove on its windward side can push the outside air into the steam chamber 10. The steam chamber 10 is equipped with a second heating module 13. Both the first heating module 14 and the second heating module 13 are electrically connected to the control module. Therefore, the air is heated after passing through the steam chamber 10, forming a flowing high-temperature airflow that can dry the activated carbon. During the drying process, the activation tank 5 rotates continuously, keeping the activated carbon in an active state, resulting in higher drying efficiency.

[0051] Since the central air pipe 11 is completely fitted onto the drain outlet, and the central air pipe 11 is connected to the spiral air inlet pipe 12, the liquid in the steam chamber 10 is discharged through the central air pipe 11 and the spiral air inlet pipe 12.

[0052] A method for cleaning surface-modified, high-efficiency AK-adsorbing activated carbon, applicable to a method for cleaning surface-modified, high-efficiency AK-adsorbing activated carbon, includes the following steps:

[0053] S1: Pretreatment: Remove impurities from the surface of activated carbon;

[0054] S2: Physical cleaning: Activated carbon is placed in the activation tank 5. The steam generated by heating water in the steam chamber 10 activates and expands the pores of the activated carbon. At the same time, the motor 15 drives the activation tank 5 to rotate through the load-bearing gear 16 and the cylinder 4 drives the activation tank 5 to rise and fall, which generates a scattering effect to separate heavy metal particles from the activated carbon.

[0055] S3: Chemical cleaning: Add clean water or acid / alkali solution to the steam chamber 10, and immerse the activation tank 5 in the clean water or acid / alkali solution through the cylinder 4 to clean and dissolve organic and heavy metal pollutants. The transition cylinder 2 rotates in the opposite direction to the steam chamber 10 for cleaning; and the cleaned liquid is discharged.

[0056] S4: Neutralization and rinsing: Add clean water or neutralization solution to rinse off the residual chemicals on the activated carbon, and drain the rinsing liquid;

[0057] S5: Drying: Open the drain outlet and introduce air into the central air pipe 11 through the arc-shaped air inlet pipe, and heat the air through the second heating module 13 to dry the activated carbon.

[0058] Since some heavy metal particles are easily volatilized in high-temperature environments, heating activated carbon at high temperatures and adding steam to activate and expand its pores can simultaneously volatilize some heavy metal particles. Additionally, some heavy metal particles that are trapped within the pore structure are ejected through rotation and vibration. Heavy metal particles that are difficult to volatilize and detach within the activated carbon's activation temperature range are washed or dissolved with acid or alkali solutions, followed by neutralization of the activated carbon with water or a neutralizing solution. Separating and collecting heavy metal particles with different properties facilitates subsequent treatment of various heavy metal pollutants, thus meeting environmental protection requirements.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A surface-modified high-efficiency AK adsorption activated carbon cleaning device, characterized in that: The device includes a cleaning chamber, which contains an activation cleaning chamber, a steam chamber, and a drive assembly. The activation cleaning chamber has several through holes and a first heating module. The drive assembly is connected to the activation cleaning chamber and drives it to rotate. The steam chamber has a second heating module. Water in the steam chamber is heated by the second heating module to form steam, which is then directed into the activation cleaning chamber containing activated carbon for activation. The activated carbon in the activation cleaning chamber is activated and expanded by absorbing the steam, and the rotation of the activation cleaning chamber causes collisions to clean the adsorbed heavy metal particles. The activation and cleaning chamber also includes an activation tank, a plurality of through holes are formed on the wall of the activation tank, the first heating module is disposed on the activation tank, the activation tank is rotatably disposed in the cleaning box, and the driving component is connected to the activation tank and drives the activation tank to rotate; The drive assembly includes a rotating mechanism, which includes a connecting ring. A motor and a load-bearing gear connected to the motor are horizontally arranged inside the connecting ring. The activation cleaning chamber also includes a transition cylinder. An outer circumferential flange is provided on the outer side of the transition cylinder. The bottom of the outer circumferential flange is provided with teeth that mesh with the load-bearing gear. The motor drives the transition cylinder to rotate through the load-bearing gear. The transition cylinder is hollow and has an inner circumferential flange on its inner side. The activation tank is placed on the inner circumferential flange of the transition cylinder, and the transition cylinder is sleeved outside the activation tank. The activation and cleaning chamber also includes a cover plate, which is hinged to the transition cylinder. The cover plate is movably pressed onto the activation tank within the inner circumferential flange. An inlet and an exhaust pipe are provided on the outer side of the cover plate, which are connected to the activation tank. A stirring rod is provided on the inner side of the cover plate, extending into the activation tank. The drive assembly includes several sets of cylinders. The fixed ends of the cylinders are connected to the inner wall of the cleaning tank, and the movable sections of the cylinders are connected to the connecting ring. The cylinders drive the activation cleaning chamber to rise and fall. When the activated carbon is activated and rotated by steam for cleaning, the cylinders rise and leave the steam chamber. When the activated carbon is rinsed, the cylinders descend and extend into the steam chamber.

2. The surface-modified high-efficiency adsorption AK activated carbon cleaning device according to claim 1, characterized in that: The steam chamber is located below the activation and cleaning chamber.

3. The surface-modified high-efficiency adsorption AK activated carbon cleaning device according to claim 1, characterized in that: The side wall of the cleaning tank is rotatably equipped with a transmission gear, which meshes with the top of the side wall of the steam chamber. The bottom of the transition cylinder is provided with teeth. When the activated carbon is immersed in clean water or acid or alkali solution, the cylinder drives the transition cylinder to mesh with the transmission gear. The transition cylinder meshes with the transmission gear and drives the steam chamber and the transition cylinder to rotate in opposite directions.

4. The surface-modified high-efficiency adsorption AK activated carbon cleaning device according to claim 1, characterized in that: A drain outlet is provided at the bottom of the steam chamber.

5. The surface-modified high-efficiency adsorption AK activated carbon cleaning device according to claim 4, characterized in that: The steam chamber is located below a cavity. The drain outlet is connected to a central air pipe on one side of the cavity. Several arc-shaped air inlet pipes are connected to the side of the central air pipe. The rotating windward side of the arc-shaped air inlet pipes has an air inlet groove that is connected to the central air pipe.

6. A method for cleaning surface-modified high-efficiency AK-adsorbing activated carbon, applicable to the surface-modified high-efficiency AK-adsorbing activated carbon cleaning device as described in any one of claims 1-5, characterized in that: Includes the following steps: S1： Pretreatment: Remove impurities from the surface of activated carbon; S2: Physical cleaning: Activated carbon is placed in the activation tank. The steam generated by heating water in the steam chamber activates and expands the pores of the activated carbon. At the same time, the motor drives the activation tank to rotate through the load-bearing gear and the cylinder drives the activation tank to rise and fall, which generates a scattering effect to separate heavy metal particles from the activated carbon. S3: Chemical cleaning: Add water or acid / alkali solution to the steam chamber, and immerse the activation tank in the water or acid / alkali solution through the cylinder to clean and dissolve organic and heavy metal pollutants. The transition cylinder rotates in the opposite direction to the steam chamber for cleaning. And drain the cleaning liquid; S4: Neutralization and rinsing: Add clean water or neutralization solution to rinse off the residual chemicals on the activated carbon, and drain the rinsing liquid; S5: Drying: Open the drain outlet and rotate the arc-shaped air inlet pipe to introduce air into the central air pipe, and heat the air through the second heating module to dry the activated carbon.

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