Renewable multi-stage granular activated coke adsorption tower

Abstract

The present invention relates to the technical field of gas purification, and specifically, to a renewable multi-stage granular activated coke adsorption tower. It includes a support frame. Bearing seats are provided on both sides of the top of the support frame. A tower body is arranged between the bearing seats. An air inlet and an air outlet are respectively opened at both ends of the tower body. A sealing plate is provided at the end of the filling frame. Activated coke particles are filled inside the filling frame. A heating component is arranged below the tower body, and the heating component is used to heat the surface of the tower body. In the present invention, the internal space of the filling frame is divided by a baffle, so that when the activated coke particles rotate inside the filling frame, they are blocked by the baffle, reducing the mutual impact and breakage of the activated coke particles and ensuring the adsorption effect of the activated coke particles. At the same time, there is a gap between the baffle and the filling frame. When the filling frame rotates, the activated coke particles inside it are slightly impacted on the surface of the baffle due to inertia, enabling the activated coke particles in different spaces to interact, thereby preventing the activated coke particles from adhering together and improving the adsorption effect of the activated coke particles on the polluted gas.

Description

Technical Field

[0001] The present invention relates to the technical field of gas purification, and more specifically, to a renewable multi-stage granular activated coke adsorption tower. Background Art

[0002] As an important treatment equipment for organic waste gas (mainly various volatile organic compounds), activated coke adsorption towers are widely used; in the process of treating organic waste gas with an activated coke adsorption tower, the organic waste gas passes through the activated coke, and the activated coke uses its own adsorption capacity to adsorb the volatile organic compounds in the organic waste gas, thereby achieving the purpose of purifying the air.

[0003] Regarding the adsorption tower device, there are many existing technologies, for example:

[0004] Chinese Patent Publication No. CN107537282A discloses a horizontal activated carbon adsorption tower, including a bracket. A driving motor is provided on the lower side wall of the bracket, and the output shaft of the driving motor is connected to a horizontally arranged first rotating shaft. A driving wheel is provided on the side of the first rotating shaft away from the driving motor. Two vertically arranged fixing blocks are symmetrically provided on the upper side wall of the bracket. Bearings are provided in both of the two fixing blocks. A second rotating shaft is inserted into the bearings, and one end of the second rotating shaft penetrates through one side of the fixing block and is connected to a driven wheel. The driving wheel and the driven wheel are connected by a vertically arranged belt. Two gears are symmetrically sleeved on the outer side wall of the second rotating shaft. The structure of the present invention is simple and easy to operate. The structure design of the horizontal adsorption tower is compact and ingenious, so that the waste gas can be treated more fully and thoroughly. At the same time, the activated carbon layer can be replaced at any time to ensure that the equipment can continue to work.

[0005] However, in the actual use process, there are still some problems:

[0006] 1. During the operation of a traditional adsorption tower, when the activated coke particles are saturated with adsorption, they need to be replaced. However, after the activated coke particles are regenerated by heating and other means, they can be put into use again. But in actual operation, due to the lack of efficient regeneration supporting facilities and mature processes, the regeneration link is difficult to carry out smoothly. Enterprises often have to choose to frequently replace new activated coke particles, which not only greatly increases the production cost but also causes a great waste of resources;

[0007] 2. During the waste gas adsorption stage, the activated coke particles in the filling frame are in relatively fixed positions. The activated coke particles near the gas channel can preferentially and fully contact the waste gas, so the adsorption process is faster and it is extremely easy to reach the adsorption saturation state first. For the activated coke particles far from the gas channel, due to the limited gas diffusion, the amount and opportunity of contacting the waste gas are relatively small, and the adsorption speed is slow, resulting in the insufficient utilization of their adsorption capacity. This significant difference in adsorption efficiency seriously affects the overall adsorption effect and utilization rate of the activated coke.

[0008] In view of this, we propose a renewable multi-stage granular activated coke adsorption tower. Summary of the Invention

[0009] The purpose of the present invention is to provide a renewable multi-stage granular activated coke adsorption tower to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above object, the present invention aims to provide a renewable multi-stage granular activated coke adsorption tower, including a support frame. Bearing seats are provided on both sides of the top of the support frame. A tower body is arranged between the bearing seats. An air inlet and an air outlet are respectively opened at both ends of the tower body. A filling frame is arranged inside the tower body. A sealing plate is provided at the end of the filling frame. Activated coke particles are filled inside the filling frame. A heating component is arranged below the tower body. The heating component is used to heat the surface of the tower body, and the tower body transfers heat to the activated coke particles inside the filling frame for heating. A rotating component is arranged on one side of the tower body. The rotating component is used to drive the tower body to rotate, so that the filling frame fixed inside the tower body is heated evenly. A buffer component is arranged inside the filling frame. The buffer component is used to buffer the rotating activated coke particles inside the filling frame and reduce the mutual impact and breakage of the activated coke particles.

[0011] As a further improvement of this technical solution, a gas channel is opened at the center of the filling frame. The diameter of the channel between the channels of the gas channel is the same as that of the air inlet. The gas is purified by passing through the air inlet, the gas channel and the air outlet in sequence.

[0012] As a further improvement of this technical solution, multiple groups of filling frames are arranged inside the tower body. The filling frames are arranged in an array. The activated coke particles inside the filling frame near the air inlet side are saturated first.

[0013] As a further improvement of this technical solution, the heating component includes a rotating motor arranged on one side of the support frame. A lead screw is arranged at the output end of the rotating motor. A moving seat is arranged on the surface of the lead screw. A heating device is arranged above the moving seat. The heating device is used to heat the bottom of the tower body.

[0014] As a further improvement of this technical solution, the heating port of the heating device is arc-shaped, and the heating device moves horizontally below the tower body.

[0015] As a further improvement of this technical solution, a cylinder is provided on the side wall of the movable seat. A sliding rod is slidably provided on the inner wall of the cylinder. A compression spring is provided between the cylinder and the sliding rod. A suction cup is provided at the end of the sliding rod, and the suction cup adsorbs on both sides of the bottom of the heating device for fixation.

[0016] As a further improvement of this technical solution, the rotating assembly includes an extension seat provided on one side of the support frame. A servo motor is provided on the surface of the extension seat. A first gear is provided at the output end of the servo motor. A fixed gear is provided on one side of the first gear, and the fixed gear is fixed on the surface of the tower body. The rotation of the first gear drives the fixed gear to mesh and rotate.

[0017] As a further improvement of this technical solution, the buffer assembly includes a support rod provided on the inner wall of the filling frame. A baffle is rotatably provided on the surface of the support rod. A torsion spring is provided between the baffle and the filling frame.

[0018] As a further improvement of this technical solution, the torsion springs are arranged in a circular array inside the filling frame. There is a gap between the baffle and the filling frame, and the activated coke particles can pass through the gap.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In this renewable multi-stage granular activated coke adsorption tower, by sequentially arranging multiple groups of filling frames inside the tower body, the multi-stage structure prolongs the contact time between the fluid and the activated coke. Compared with single-stage adsorption, the fluid has to pass through multiple activated coke layers in sequence in the multi-stage adsorption tower, increasing the contact opportunity between pollutants and the adsorption sites on the surface of the activated coke, thereby greatly improving the adsorption efficiency and the waste gas purification effect.

[0021] 2. In this renewable multi-stage granular activated coke adsorption tower, by controlling the output end of the rotating motor to drive the lead screw to rotate, when the lead screw rotates, it drives the movable seat to move horizontally below the tower body. Since a heating device is provided on the surface of the movable seat and the heating device is arc-shaped, it can completely fit the bottom of the tower body for heating, making the heating range more uniform. By heating the surface of the tower body through the heating device, since the tower body is made of a metal material with heat conductivity, when the tower body is heated, the heat is transferred to the surface of the filling frame provided inside. When the filling frame is heated, the activated coke particles inside are heated, so that the organic matter adsorbed in the pores of the activated coke volatilizes, improving the service life of the activated coke and reducing the production cost.

[0022] 3. In the renewable multi-stage granular activated coke adsorption tower, the internal space of the filling frame is divided by baffles. When the activated coke particles rotate inside the filling frame, they are blocked by the baffles, reducing the impact and breakage of the activated coke particles against each other and ensuring the adsorption effect of the activated coke particles. At the same time, there is a gap between the baffle and the filling frame. When the filling frame rotates, the activated coke particles inside it are slightly impacted on the surface of the baffle due to inertia, enabling the activated coke particles in different spaces to interact, thus preventing the activated coke particles from adhering together and improving the adsorption effect of the activated coke particles on the polluted gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic diagram of the tower body structure of the present invention;

[0025] Figure 3 is a schematic diagram of the heating component structure of the present invention;

[0026] Figure 4 is a schematic diagram of the heating device structure of the present invention;

[0027] Figure 5 is a sectional view of the tower body of the present invention;

[0028] Figure 6 is a schematic diagram of the buffer component structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 schematic diagram at location A.

[0030] The meanings of the various reference numerals in the figure are as follows:

[0031] 100, support frame; 101, bearing seat; 102, tower body; 103, air inlet; 104, air outlet;

[0032] 200, filling frame; 201, sealing plate; 202, gas channel;

[0033] 300, heating component; 301, rotating motor; 302, lead screw; 303, moving seat; 304, heating device; 305, cylinder; 306, sliding rod; 307, compression spring; 308, suction cup; <s

[0034] 400, rotating component; 401, extension seat; 402, servo motor; 403, first gear; 404, fixed gear;

[0035] 500, buffer component; 501, support rod; 502, baffle; 503, torsion spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0038] As an important organic waste gas treatment device, the activated coke adsorption tower is widely used. In the process of treating organic waste gas with the activated coke adsorption tower, the organic waste gas passes through the activated coke, and the activated coke uses its own adsorption capacity to adsorb the volatile organic compounds in the organic waste gas, thereby achieving the purpose of purifying the air. In the current traditional adsorption tower process, during the operation of the traditional adsorption tower, when the activated coke particles are saturated with adsorption, they need to be replaced. However, after the activated coke particles are regenerated by heating and other methods, they can be put into use again. But in actual operation, due to the lack of efficient regeneration supporting facilities and mature processes, the regeneration link is difficult to carry out smoothly. Enterprises often have to choose to frequently replace new activated coke particles, which not only greatly increases the production cost but also causes a great waste of resources.

[0039] The purpose of this embodiment is to provide a renewable multi-stage granular activated coke adsorption tower. Refer to Figures 1-7As shown in the figure, it includes a support frame 100. On both sides of the top of the support frame 100, there are bearing seats 101. Between the bearing seats 101, there is a tower body 102. An air inlet 103 and an air outlet 104 are respectively opened at both ends of the tower body 102. Inside the tower body 102, there is a filling frame 200. At the end of the filling frame 200, there is a sealing plate 201. The inside of the filling frame 200 is filled with activated coke particles. Below the tower body 102, there is a heating component 300, which is used to heat the surface of the tower body 102. The heated tower body 102 transfers heat to the inside of the filling frame 200 to heat the activated coke particles. On one side of the tower body 102, there is a rotating component 400, which is used to drive the tower body 102 to rotate, so that the filling frame 200 fixed inside the tower body 102 is heated evenly. Inside the filling frame 200, there is a buffer component 500, which is used to buffer the rotating activated coke particles inside the filling frame 200 and reduce the mutual impact and breakage of the activated coke particles.

[0040] The improvement of the present invention lies in: the internal space of the filling frame 200 is divided by a baffle 502, so that when the activated coke particles rotate inside the filling frame 200, they are blocked by the baffle 502, reducing the mutual impact and breakage of the activated coke particles and ensuring the adsorption effect of the activated coke particles. At the same time, there is a gap between the baffle 502 and the filling frame 200. When the filling frame 200 rotates, the activated coke particles inside it are slightly impacted on the surface of the baffle 502 due to inertia, enabling the activated coke particles in different spaces to interact, thus avoiding the adhesion of the activated coke particles and improving the adsorption effect of the activated coke particles on the polluted gas.

[0041] During the gas purification process, in order to facilitate the adsorption of harmful gases, therefore, a gas channel 202 is opened at the center of the filling frame 200. The diameter of the channels of the gas channel 202 is the same as that of the air inlet 103. The gas is purified by passing through the air inlet 103, the gas channel 202 and the air outlet 104 in sequence. By arranging the filling frame 200 inside the tower body 102, since the inside of the filling frame 200 is filled with activated coke particles, the harmful gas molecules first undergo external diffusion when passing through the activated coke particles, that is, the harmful gas molecules diffuse from the gas phase main body through the boundary layer to the outer surface of the activated coke particles, and then internal diffusion occurs. The gas molecules diffuse from the outer surface of the activated coke particles through the pore channels into the particle interior. This process enables the gas molecules to penetrate into the pores inside the activated coke for adsorption, thus achieving the purification of the gas.

[0042] During the purification process of waste gas, in order to improve the purification effect, multiple groups of filling frames 200 are provided inside the tower body 102. The filling frames 200 are arranged in an array. The activated coke particles inside the filling frames 200 near the air inlet 103 are preferentially saturated. By sequentially arranging multiple groups of filling frames 200 inside the tower body 102, the multi-stage structure prolongs the contact time between the fluid and the activated coke. Compared with single-stage adsorption, the fluid has to pass through multiple activated coke layers in sequence in the multi-stage adsorption tower, increasing the contact opportunity between the pollutants and the adsorption sites on the surface of the activated coke. For example, in waste gas treatment, the waste gas may only stay for a few seconds in a single-stage adsorption tower, while in a multi-stage adsorption tower, due to the layer-by-layer adsorption effect, the total contact time may be extended to more than ten seconds or even dozens of seconds, thus greatly improving the adsorption efficiency and the waste gas purification effect.

[0043] When the activated coke particles inside the filling frame 200 are saturated in adsorption, through high-temperature heating, the pollutants such as organic substances adsorbed in the pores of the activated coke can be volatilized, so as to be reused. Therefore, the heating component 300 includes a rotating motor 301 provided on one side of the support frame 100. A lead screw 302 is provided at the output end of the rotating motor 301. A moving seat 303 is provided on the surface of the lead screw 302. A heating device 304 is provided above the moving seat 303. The heating device 304 is used to heat the bottom of the tower body 102. The heating port of the heating device 304 is arc-shaped. The heating device 304 moves horizontally below the tower body 102. When the activated coke particles in the filling frame 200 are saturated in adsorption, the output end of the air outlet 104 is connected to the purification device to collect and purify the organic substances volatilized from the heated activated coke. By controlling the output end of the rotating motor 301 to drive the lead screw 302 to rotate, when the lead screw 302 rotates, it drives the moving seat 303 to move horizontally below the tower body 102. Since the heating device 304 is provided on the surface of the moving seat 303 and the heating device 304 is arc-shaped, it can completely fit the bottom of the tower body 102 for heating, making the heating range more uniform. By heating the surface of the tower body 102 through the heating device 304, since the tower body 102 is made of metal and has heat conductivity, when the tower body 102 is heated, the heat is transferred to the surface of the filling frame 200 provided inside. When the filling frame 200 is heated, the activated coke particles inside are heated, so that the organic substances adsorbed in the pores of the activated coke are volatilized, improving the service life of the activated coke and reducing the production cost.

[0044] Considering that during the movement of the heating device 304, its position is prone to deviation due to inertia, resulting in the deviation of the heating position and affecting the purification efficiency of the activated coke particles. Therefore, a cylinder 305 is provided on the side wall of the moving seat 303. A sliding rod 306 is slidably provided on the inner wall of the cylinder 305. A compression spring 307 is provided between the cylinder 305 and the sliding rod 306. A suction cup 308 is provided at the end of the sliding rod 306. The suction cup 308 adsorbs on both sides of the bottom of the heating device 304 for fixation. By squeezing the suction cup 308, the sliding rod 306 is driven to slide on the inner wall of the cylinder 305. During the sliding process of the sliding rod 306, the compression spring 307 is squeezed to cause deformation. During the squeezing process, the space between the suction cups 308 is increased. The heating device 304 is placed between the suction cups 308. Stopping squeezing the suction cup 308, the sliding rod 306 is pushed by the reverse acting force of the compression spring 307, so that the suction cup 308 provided at the end of the sliding rod 306 adsorbs on the side wall of the heating device 304 for fixation, thereby keeping the heating device 304 stable during horizontal movement and ensuring the heating effect on the activated coke particles.

[0045] Considering that when heating the activated coke particles inside the filling frame 200, since the heating device 304 can only heat the bottom of the tower body 102, the heating effect of the activated coke above the filling frame 200 is relatively poor, affecting the secondary utilization of the adsorbed saturated activated coke particles. Therefore, the rotating assembly 400 includes an extension seat 401 provided on one side of the support frame 100. A servo motor 402 is provided on the surface of the extension seat 401. A first gear 403 is provided at the output end of the servo motor 402. A fixed gear 404 is provided on one side of the first gear 403. The fixed gear 404 is fixed on the surface of the tower body 102. The rotation of the first gear 403 drives the fixed gear 404 to mesh and rotate. By controlling the heating device 304 to move below the corresponding filling frame 200 and starting the servo motor 402 to drive the first gear 403 to rotate, when the first gear 403 rotates, it drives the fixed gear 404 to mesh and rotate. When the fixed gear 404 rotates, the tower body 102 rotates inside the bearing seat 101, so as to uniformly heat the activated coke particles in the filling frame 200 and improve the service life of the activated coke particles.

[0046] Considering that when the tower body 102 drives the filling frame 200 to rotate, the activated coke particles filled in the filling frame 200 are prone to friction and impact with each other, resulting in particle breakage and affecting the adsorption efficiency of harmful gases. Therefore, the buffer assembly 500 includes a support rod 501 provided on the inner wall of the filling frame 200. A baffle 502 is rotatably provided on the surface of the support rod 501. A torsion spring 503 is provided between the baffle 502 and the filling frame 200. The torsion springs 503 are arranged in an annular array inside the filling frame 200. There is a gap between the baffle 502 and the filling frame 200. The activated coke particles can pass through the gap. The baffle 502 divides the internal space of the filling frame 200, so that the activated coke particles are blocked by the baffle 502 when rotating inside the filling frame 200, reducing the mutual impact and breakage of the activated coke particles and ensuring the adsorption effect of the activated coke particles. At the same time, in order to prevent the activated coke from accumulating in the same space for a long time and adhering together, there is a gap between the baffle 502 and the filling frame 200. When the filling frame 200 rotates, the activated coke particles inside it are slightly impacted on the surface of the baffle 502 by inertia, enabling the activated coke particles in different spaces to interact, thereby preventing the activated coke particles from adhering together and improving the adsorption effect of the activated coke particles on the polluted gas.

[0047] During specific use, the filling frame 200 is arranged inside the tower body 102. Since the filling frame 200 is filled with activated coke particles, gas molecules diffuse from the outer surface of the activated coke particles through the pore channels into the particles. This process enables the gas molecules to penetrate into the pores inside the activated coke for adsorption, thereby achieving the purification of the gas. By sequentially arranging multiple groups of filling frames 200 inside the tower body 102, the multi-stage structure prolongs the contact time between the fluid and the activated coke. Compared with single-stage adsorption, the fluid has to pass through multiple activated coke layers in sequence in the multi-stage adsorption tower, increasing the contact opportunities between the pollutants and the adsorption sites on the surface of the activated coke, thus greatly improving the adsorption efficiency and the waste gas purification effect.

[0048] Control the output end of the rotation motor 301 to drive the lead screw 302 to rotate. When the lead screw 302 rotates, it drives the moving seat 303 to move horizontally below the tower body 102. Since a heating device 304 is provided on the surface of the moving seat 303 and the heating device 304 is arc-shaped, it can completely fit the bottom of the tower body 102 for heating, making the heating range more uniform. The surface of the tower body 102 is heated by the heating device 304. Since the tower body 102 is made of metal and has heat conductivity, when the tower body 102 is heated, the heat is transferred to the surface of the filling frame 200 provided inside. When the filling frame 200 is heated, the activated coke particles inside are heated, so that the organic matter adsorbed in the pores of the activated coke volatilizes, improving the service life of the activated coke and reducing the production cost.

[0049] The output end of the servo motor 402 drives the first gear 403 to rotate. When the first gear 403 rotates, it drives the fixed gear 404 to rotate meshingly. When the fixed gear 404 rotates, the tower body 102 rotates on the inner wall of the bearing seat 101. When the heating device 304 heats the bottom of the tower body 102, the heated tower body 102 transfers heat to the filling frame 200 to heat the activated coke particles, so that the activated coke particles in the filling frame 200 are heated evenly, improving the service life of the activated coke particles. At the same time, the filling frame 200 can be driven by the tower body 102 to rotate, making the activated coke particles filled in the filling frame 200 mix evenly and improving the adsorption effect of the activated coke.

[0050] The internal space of the filling frame 200 is divided by the baffle 502, so that when the activated coke particles rotate inside the filling frame 200, they are blocked by the baffle 502, reducing the mutual impact and breakage of the activated coke particles and ensuring the adsorption effect of the activated coke particles. At the same time, there is a gap between the baffle 502 and the filling frame 200. When the filling frame 200 rotates, the activated coke particles inside it are slightly impacted on the surface of the baffle 502 by inertia, enabling the activated coke particles in different spaces to interact, thus preventing the activated coke particles from adhering together and improving the adsorption effect of the activated coke particles on the polluted gas.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. Renewable multi-stage granular activated coke adsorption tower, characterized in that: It includes a support frame (100). On both sides of the top of the support frame (100), there are bearing seats (101). Between the bearing seats (101), there is a tower body (102). An air inlet (103) and an air outlet (104) are respectively arranged at both ends of the tower body (102). Inside the tower body (102), there is a filling frame (200). A sealing plate (201) is arranged at the end of the filling frame (200). The inside of the filling frame (200) is filled with activated coke particles. Below the tower body (102), there is a heating component (300). The heating component (300) is used to heat the surface of the tower body (102), and the tower body (102) transfers heat to the activated coke particles in the filling frame (200) for heating. On one side of the tower body (102), there is a rotating component (400). The rotating component (400) is used to drive the tower body (102) to rotate, so that the filling frame (200) fixed inside the tower body (102) is heated evenly. The rotating component (400) includes an extension seat (401) arranged on one side of the support frame (100). A servo motor (402) is arranged on the surface of the extension seat (401). A first gear (403) is arranged at the output end of the servo motor (402). On one side of the first gear (403), there is a fixed gear (404). The fixed gear (404) is fixed on the surface of the tower body (102). The rotation of the first gear (403) drives the fixed gear (404) to mesh and rotate. Inside the filling frame (200), there is a buffer component (500). The buffer component (500) is used to buffer the rotating activated coke particles inside the filling frame (200) and reduce the mutual impact and breakage of the activated coke particles. The buffer component (500) includes a support rod (501) arranged on the inner wall of the filling frame (200). A baffle (502) is rotatably arranged on the surface of the support rod (501). A torsion spring (503) is arranged between the baffle (502) and the filling frame (200). The torsion springs (503) are arranged in a circular array inside the filling frame (200). There is a gap between the baffle (502) and the filling frame (200), and the activated coke particles can pass through the gap.

2. The renewable multi-stage granular activated coke adsorption tower according to claim 1, wherein: A gas channel (202) is opened at the center of the filling frame (200). The diameter of the channels of the gas channel (202) is the same as that of the air inlet (103). The gas is purified by passing through the air inlet (103), the gas channel (202) and the air outlet (104) in sequence.

3. The renewable multi-stage granular activated coke adsorption tower according to claim 1, characterized in that: Multiple groups of filling frames (200) are arranged inside the tower body (102). The filling frames (200) are arranged in an array. The activated coke particles in the filling frame (200) on the side close to the air inlet (103) are saturated first.

4. The renewable multi-stage granular activated coke adsorption tower according to claim 3, characterized in that: The heating component (300) includes a rotating motor (301) provided on one side of the support frame (100). A lead screw (302) is provided at the output end of the rotating motor (301). A moving seat (303) is provided on the surface of the lead screw (302). A heating device (304) is provided above the moving seat (303). The heating device (304) is used to heat the bottom of the tower body (102).

5. The renewable multi-stage granular activated coke adsorption tower according to claim 4, characterized in that: The heating port of the heating device (304) is arc-shaped, and the heating device (304) moves horizontally below the tower body (102).

6. The renewable multi-stage granular activated coke adsorption tower according to claim 4, characterized in that: A column cylinder (305) is provided on the side wall of the moving seat (303). A sliding rod (306) is slidably provided on the inner wall of the column cylinder (305). A compression spring (307) is provided between the column cylinder (305) and the sliding rod (306). A suction cup (308) is provided at the end of the sliding rod (306). The suction cup (308) adsorbs on both sides of the bottom of the heating device (304) for fixation.

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