Layered adjustable activated carbon flue gas purification device and flue gas purification system

Abstract

The utility model discloses a layered adjustable activated carbon flue gas purification device and a flue gas purification system, through the design of independent layering of an activated carbon bed layer and cross contact with flue gas flow, the material distribution difficulty is reduced, the material distribution uniformity is improved, and the utilization efficiency of activated carbon is improved; in addition, through the design of the adjustable porous movable partition plate, the flexible adjustment of the activated carbon thickness of each bed layer unit is realized. Furthermore, the thickness of each bed layer can be individually adjusted and set to be matched with flue gas parameters on line according to the change of project characteristics or actual operation parameters, and the activated carbon saturation time and saturation degree of each chamber can be further adjusted, so that the activated carbon blanking frequency can be integrally optimized, the abrasion of the activated carbon is reduced, and the service life of the activated carbon is prolonged. The emission concentration of pollutants such as dust in the blanking period is more effectively controlled, and the utilization and regeneration efficiency of the activated carbon is improved, so that the operation cost is reduced. The device has the characteristics of simple structure, convenience in adjustment, high adaptability and easiness in large-scale popularization and application.

Description

Technical Field

[0001] This utility model relates to flue gas purification equipment, specifically to a layered adjustable activated carbon flue gas purification device and flue gas purification system, belonging to the field of activated carbon flue gas purification technology. Background Technology

[0002] In recent years, my country's environmental problems have become increasingly severe, highlighting the need to reduce and control SO2 and NO. x Dust emissions have become an urgent problem to be solved in my country. Currently, flue gas desulfurization technology is mainly divided into three categories: wet, semi-dry, and dry desulfurization processes. The wet flue gas desulfurization technology commonly used in China has disadvantages such as treating only one type of pollutant, causing secondary pollution, large water consumption, and inability to recover and utilize sulfur resources. The semi-dry desulfurization technology has problems such as low efficiency, large amount of solid waste generated, and difficulty in treatment.

[0003] Dry flue gas desulfurization (FGD) technology refers to the removal of pollutants from flue gas by using desulfurization adsorbents in a dry state without the participation of a liquid phase. Common desulfurization agents include carbon materials, metal oxides, molecular sieves, silica gel, and zeolites. Common dry FGD technologies include activated carbon adsorption, metal oxide desulfurization, electron beam desulfurization, pulsed corona discharge, and charged dry powder calcium spraying desulfurization. Among these, activated carbon adsorption is a simple and effective dry process for removing polluting gases and vapors from flue gas. Dry technologies, represented by activated carbon adsorption desulfurization, have a research and application history of over half a century. They have begun to be industrialized in Germany, the United States, and Japan, and are currently widely used in industries such as steel in my country. In contrast, considering cost and environmental friendliness, activated carbon flue gas purification technology produces less secondary pollution, has regenerable adsorbents, is less prone to scaling and corrosion, has lower investment and operating costs, and can remove a variety of pollutants. Moreover, this purification process does not require water and does not generate wastewater pollution. It is a dry flue gas purification technology that is very suitable for complex flue gas purification. In recent years, it has been applied and gradually promoted in flue gas desulfurization and integrated purification in my country, and has good development prospects in my country.

[0004] Activated carbon flue gas purification technology is mainly divided into two types based on the bed form of the adsorption equipment used: fixed bed and moving bed. In engineering, the dry process of activated carbon fixed bed often adopts a counter-current fixed bed technology. Activated carbon granules are loaded into the desulfurization adsorption tower from the top feed hopper. The adsorption tower absorption chamber is a single, integral bed. After the flue gas enters the fixed bed adsorption tower from the bottom, it rises from the bottom to the top, making counter-current contact with the activated carbon bed. With contact with the fixed bed desulfurizing agent, SO2 and NO... XThe dust is removed immediately, achieving a deep dust removal effect. The treated clean flue gas is discharged from the upper outlet of the fixed bed absorption chamber into the main flue gas duct, and finally led to the chimney for emission. The entire process does not use water, does not generate wastewater, and does not require whitening. The process is simple, highly effective, and cost-effective in both investment and operation, making it suitable for treating various industrial waste gases.

[0005] However, the existing integral bed fixed bed activated carbon process has the following problems: 1) In order to ensure that the fabric is as flat as possible, more fabric, feeding and storage space is required, so the effective filling rate is low, dead corners are easy to be generated, and there is a risk of high temperature heat accumulation; 2) In order to ensure the residence time and flow rate of flue gas, the flue gas countercurrent contact adsorption tower has a large floor area, and the flue gas resistance is large and uneven; 3) Conventional processes use ton bags to directly add activated carbon into the bed. A large number of activated carbon particles entering the entire large absorption chamber can easily cause blockage. Activated carbon is sometimes difficult to distribute evenly, and purification cannot be carried out efficiently. 4) Flue gas enters the adsorption tower from the bottom of the bed. After a period of operation, the activated carbon in the lower part that first contacts the flue gas suffers severe mechanical wear and becomes saturated. At this time, the activated carbon in the upper part is far from saturated. When the activated carbon in the lower part that first contacts the original flue gas accumulates to a certain extent, the activated carbon channels containing more sticky acidic particles and dust may become blocked, forming many small material piles, resulting in a large pressure drop. Moreover, the flue gas may flow more from the thinner material layer and less from the thicker material layer, resulting in uneven flue gas distribution. When it is necessary to replace part of the saturated material, the activated carbon in the entire absorption chamber must be fed simultaneously, resulting in low activated carbon utilization, the formation of a "funnel material" at the discharge port, local accumulation, poor feeding, uneven feeding, blockage of the discharge port, increased operating resistance, and difficulties in regeneration, among other problems. 5) Conventional activated carbon layer adsorption towers often use perforated plates or grids for contact between the bed and the flue gas side. During operation, ash leakage often occurs, leading to problems such as ash accumulation in the flue and excessive dust. 6) Currently used activated carbon flue gas purification devices generally employ a fixed-thickness bed. Due to the limited sulfur capacity of activated carbon, online replacement and maintenance are not possible when adsorption becomes saturated and activated carbon needs to be replaced. Replacement typically requires shutdown, which is extremely inconvenient, time-consuming, and labor-intensive. To ensure operational continuity, multi-tower processes, large-scale activated carbon filling, or bypasses are necessary, resulting in large investments and floor space requirements, increased risk of overheating, and poor adaptability to flue gas fluctuations. 7) Flue gas flow rate, composition, and temperature are closely related to the adsorption efficiency of activated carbon. Most industrial flue gases frequently change or fluctuate due to raw materials or load during actual operation. When these parameters change or fluctuate, conventional fixed-bed adsorption towers cannot adjust the carbon bed thickness accordingly, potentially leading to a failure to quickly match flue gas parameters and affecting operation and emission indicators. This necessitates modification or replacement of the device, increasing time and costs. 8) Existing equipment is generally a single-stage adsorption unit due to site or investment limitations. This presents several problems during operation, such as the flue gas being directly discharged after treatment by the absorbent, and insufficient reaction time leading to incomplete treatment of some flue gas, making it difficult to guarantee complete treatment. A few projects use multi-stage adsorption towers, typically in a planar, series-connected configuration, which suffers from large footprint, high investment costs, and low activated carbon utilization. Utility Model Content

[0006] To address the problems of suboptimal material distribution, low activated carbon utilization efficiency, and inability to flexibly adjust to changes in flue gas composition in existing fixed-bed activated carbon processes, this invention provides a layered adjustable activated carbon flue gas purification device and a flue gas purification system incorporating this device. By designing independently layered activated carbon beds with cross-contact with the flue gas flow, the difficulty of material distribution is reduced, and the uniformity of material distribution is improved, as well as the uniformity of contact with the flue gas, thereby increasing activated carbon utilization efficiency. Furthermore, by adding an adjustable activated carbon bed width structure, the width of each independent activated carbon bed can be flexibly adjusted, thus adapting to changes in different flue gas compositions and ensuring efficient flue gas purification.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] According to the first embodiment of this utility model, a layered adjustable activated carbon flue gas purification device is provided:

[0009] A layered adjustable activated carbon flue gas purification device includes a tower body, a flue gas inlet chamber, and a flue gas exhaust chamber. The flue gas inlet chamber is located on the front side of the front wall of the tower body and communicates with the inner cavity of the tower body. The flue gas exhaust chamber is located on the rear side of the rear wall of the tower body and communicates with the inner cavity of the tower body. The inner cavity of the tower body is divided into multiple purification chambers connected in series along the width direction by porous movable partitions from front to back. A width adjustment mechanism is also provided on the longitudinal side wall of the tower body perpendicular to the width direction. The width adjustment mechanism passes through the tower body and is connected to the porous movable partitions located inside it. By adjusting the displacement of any porous movable partition in the width direction through the width adjustment mechanism, the width of any purification chamber can be adjusted. An air inlet is provided on the flue gas inlet chamber, and an exhaust outlet is provided on the flue gas exhaust chamber. Preferably, both the front and rear side walls of the tower body are designed with louvers.

[0010] Preferably, the width adjustment mechanism includes a driver, a rotating shaft, and a push plate. The driver is located outside the longitudinal sidewall of the tower body. One end of the rotating shaft is connected to the driver, and the other end extends through the longitudinal sidewall of the tower body into the interior of the tower body. The push plate is located inside the tower body, between the longitudinal sidewall and the porous movable partition. One end of the push plate is perpendicularly connected to the rotating shaft, and the other end is connected to the porous movable partition. The driver drives the push plate to rotate in the width direction via the rotating shaft, thereby pushing the porous movable partition to move in the width direction.

[0011] Preferably, multiple push plates and corresponding rotating shafts are arranged from top to bottom between the longitudinal sidewall of the tower body and the porous movable partition. Outside the tower body, a driver is connected to any one of the rotating shafts, and the shaft connected to the driver is then connected to the remaining rotating shafts via a transmission link. The driver drives the connected rotating shaft to rotate, which in turn drives the remaining rotating shafts to rotate synchronously via the transmission link, thereby causing all the push plates to rotate synchronously in the width direction.

[0012] Preferably, the end of all rotating shafts furthest from the driver extends longitudinally through the inner cavity of the tower body and connects to another longitudinal sidewall of the tower body. A push plate is respectively installed on the rotating shaft located on both sides of the porous movable partition and between the two longitudinal sidewalls of the tower body; the two push plates rotate synchronously with the rotation of the rotating shaft.

[0013] Preferably, the number of perforated movable baffles inside the tower body is ~ pieces, more preferably ~ pieces, and even more preferably ~ pieces. Each perforated movable baffle is independently equipped with a width adjustment mechanism.

[0014] Preferably, on any porous movable partition plate: the diameter of a single through hole is 2–10 mm, preferably 3–5 mm. The opening ratio is 30–80%, preferably 40–70%.

[0015] Preferably, an upper baffle block is provided at the top of the inner cavity of the tower body, and a lower baffle block is provided at the bottom of the inner cavity of the tower body. The lower end of the upper baffle block is in contact with the top end of the porous movable baffle, and the upper end of the lower baffle block is in contact with the bottom end of the porous movable baffle. The lower end of the upper baffle block is a convex arc-shaped end face extending in the width direction, and the upper end of the porous movable baffle is a concave arc-shaped end face extending in the width direction.

[0016] Preferably, in the vertical direction, any perforated movable partition is composed of multiple small partitions connected in series, and each small partition has an independently installed width adjustment mechanism on the longitudinal side wall of the tower body, which is independently connected to that small partition.

[0017] Preferably, the vertical height of a single small partition is no more than 5m, and more preferably 0.5 to 3m.

[0018] Preferably, an activated carbon feeding hopper is also provided at the top of the tower body. The discharge port of the activated carbon feeding hopper is connected to the top inlet of each purification chamber through an independent feed valve pipe. A discharge roller and a discharge hopper are independently provided at the bottom discharge port of each purification chamber.

[0019] Preferably, the width of any one of the purification chambers is 0.5 to 2 m, and more preferably 0.8 to 1.6 m.

[0020] Preferably, the height of any one of the purification chambers in the vertical direction is 1 to 20m, and more preferably 2 to 15m.

[0021] According to a second embodiment of the present invention, an activated carbon flue gas purification system is provided:

[0022] An activated carbon flue gas purification system includes multiple layered adjustable activated carbon flue gas purification devices as described in the first embodiment, which are connected in series in the vertical direction.

[0023] Preferably, the system consists of two layered adjustable activated carbon flue gas purification devices connected in series, one above the other. Based on the flue gas flow path, the original flue gas conveying pipeline is connected to the inlet of the lower flue gas inlet chamber via a booster fan. The exhaust port of the lower flue gas exhaust chamber is connected to the inlet of the upper flue gas inlet chamber via a flue gas transfer pipeline. The exhaust port of the upper flue gas exhaust chamber is connected to the flue gas emission pipeline.

[0024] Based on the orientation of the activated carbon, the bottom discharge port of the first purification chamber on the side of the upper tower closest to its flue gas inlet chamber is connected to the top inlet of the first purification chamber on the side of the lower tower closest to its flue gas exhaust chamber. Similarly, the bottom discharge port of the second purification chamber on the side of the upper tower closest to its flue gas inlet chamber is connected to the top inlet of the second purification chamber on the side of the lower tower closest to its flue gas exhaust chamber. This process continues until the bottom discharge port of the last purification chamber on the side of the upper tower closest to its flue gas inlet chamber is connected to the top inlet of the last purification chamber on the side of the lower tower closest to its flue gas exhaust chamber.

[0025] In existing technologies, activated carbon can undergo both physical and chemical adsorption during the adsorption process. Physical adsorption is affected by the porosity of the adsorbent, while chemical adsorption is affected by the surface chemical properties of the adsorbent. Generally, the main factors affecting the adsorption capacity include the pore distribution structure and surface chemical functional groups of the adsorbent. As pollutants such as SO2 react on activated carbon, some surface active sites are covered by generated H2SO4·n(H2O) and dust. Long-term supersaturation can cause severe mechanical friction in the front bed of activated carbon, leading to a gradual decrease in particle size and porosity. This makes it difficult for pollutants to diffuse evenly into the unsaturated micropores of the back bed of activated carbon, or it can cause flow deviation, resulting in a decrease in adsorption efficiency and a rapid increase in resistance. In conventional activated carbon purification processes, the adsorption tower bed is a monolithic chamber structure. When raw flue gas enters the purification device, the activated carbon on the inlet side quickly becomes saturated, adsorbing a large amount of pollutants and dust, resulting in a significant pressure drop. However, the activated carbon in the middle and rear chambers is far from saturated. When a significant pressure drop occurs or emission standards rise, the system must be shut down or a bypass system used, requiring the entire chamber's activated carbon to be simultaneously discharged and replaced, causing numerous problems. Furthermore, because the activated carbon powder at the front of the bed is relatively moist and has strong adhesion due to adsorbing sulfuric acid dust, mechanical wear causes the particle size to decrease. During discharge, the activated carbon cannot flow steadily from the discharge port, resulting in blockages or material stagnation. This reduces activated carbon utilization efficiency and wastes it. Moreover, activated carbon that has been in long-term oversaturated contact with the raw flue gas is difficult to regenerate, affecting regeneration.

[0026] In this invention, the flue gas inlet chamber, the tower body, and the flue gas exhaust chamber are connected in series in a front-middle-rear manner, allowing the flue gas to enter from one side wall of the tower body, be purified by the activated carbon bed, and then exit from the other side wall of the tower body. The activated carbon enters each purification chamber inside the tower body from the top and flows downwards to adsorb and purify the flue gas, finally exiting from the bottom of the tower body. (It should be noted that the activated carbon in the tower body of this invention can be stationary or slowly flowing downwards, which can be adjusted and switched according to actual working conditions.) In other words, this invention employs a layered and adjustable-bed-thickness cross-flow activated carbon adsorption purification process, providing a layered adjustable activated carbon flue gas purification device that allows for individual feeding and discharging of each bed layer. Furthermore, an adjustable porous baffle structure has been developed to automatically adjust the thickness of each bed layer within a certain range. This solves the problems of conventional fixed-bed adsorption towers, which have a monolithic bed and cannot adjust the thickness, resulting in problems such as the inability to replace activated carbon online, easy blockage of activated carbon channels, uneven flue gas distribution, poor material discharge, increased resistance, low activated carbon utilization, difficulty in activated carbon regeneration, and inability to adjust and match according to changes in flue gas parameters.

[0027] In this invention, the discharge port of the activated carbon feeding hopper is connected to the top inlet of each purification chamber via independent feed valve pipes. This means that each individual bed unit (i.e., a single purification chamber and its internal activated carbon) has independent shut-off valves for both feeding and discharging, allowing for independent feeding and discharging. The number of operating bed layers can be selected based on actual operating conditions, reducing flue gas resistance and achieving flexible and efficient control while ensuring emission standards are met, thus improving the system's adaptability to flue gas fluctuations. When the activated carbon in one bed becomes saturated and needs replacement, there is no need to shut down the system or use a bypass system; any activated carbon layer can be quickly replaced online, enabling continuous operation of the flue gas system. In addition, the control of activated carbon feeding and discharging is crucial to the flue gas purification effect and system safety. According to the width of the adsorption tower, a long-shaft roller discharge machine is set at the discharge port to ensure uniform discharge in the width direction of the adsorption tower. This can prevent the situation where the activated carbon in the tower does not move due to uneven feeding caused by conventional equipment such as rotary valves or slide gate valves, avoid the spontaneous combustion of activated carbon in the tower, and at the same time, it can accurately control the discharge amount.

[0028] In this invention, both the front and rear side walls of the tower are designed with louvers. Preferably, the louvers are made of stainless steel, with a blade gap of 3–10 mm (preferably 5–8 mm) and an upward tilt angle of 50–80° (preferably 65–75°). This louver structure ensures that the flue gas passes through more evenly, while the activated carbon effectively isolates the flue gas and inhibits the leakage of activated carbon dust and the entrainment of flue gas into the flue. This avoids the problems of ash accumulation and excessive dust in the flue caused by conventional porous baffles, making the entire flue gas system smoother and more uniform, which is more conducive to ensuring the adsorption effect.

[0029] In this invention, the inner cavity of the tower is divided into multiple purification chambers connected in series along the width direction by porous movable partitions. Each porous movable partition is independently equipped with a width adjustment mechanism (including a driver, a rotating shaft, and a push plate). By driving the rotating shaft, push plate, and porous movable partitions to rotate or move, the thickness of each purification chamber in the width direction can be automatically adjusted within a certain range. This achieves the following objectives: a) Based on project characteristics or changes in actual operating parameters, the thickness of each bed layer can be adjusted online to match the flue gas parameters. Furthermore, the saturation time and degree of activated carbon in each chamber can be adjusted, thereby optimizing the activated carbon feeding frequency, reducing activated carbon wear, and more effectively controlling the emission concentration of dust and other pollutants during the feeding period. The improved activated carbon utilization rate is also more conducive to activated carbon regeneration, thus reducing operating costs. b. Utilizing a drive unit, rotating shaft, and pusher plate, the porous movable baffles between the activated carbon beds can oscillate left and right within a certain range, improving the uniformity of activated carbon distribution, solving the problem of poor discharge, accelerating feeding and discharging, increasing operating efficiency, and shortening working time. c. The entire adsorption tower device adopts a modular design, allowing for personalized adjustments to the number of bed units in each adsorption tower unit (multiple bed units can be set, preferably 3-5), and adjusting the thickness of each bed (preferably 0.8-1.6m). This enables a single device to adapt to various operating conditions or be applied to multiple projects within a wide range without modification. It should be noted that the porous movable baffles can both allow flue gas to pass through and effectively isolate it with activated carbon. The porosity of the porous movable baffles is generally around 30-80% (preferably 40-70%), and the equivalent diameter of a single through-hole is approximately 2-10mm (preferably 3-5mm).

[0030] In this invention, for ease of description, the flow direction of flue gas within the tower body is defined as the width direction of the tower body, and the horizontal direction perpendicular to the width direction is referred to as the longitudinal direction of the tower body. The descriptions of the width and longitudinal directions should not be considered as limitations on the scope of protection of this invention.

[0031] In this invention, the tower body is divided into n purification chambers by porous movable partitions (where n is generally an integer greater than or equal to 2, selected according to the flue gas volume and parameters). For example, when n is 3, the tower body is divided into 3 purification chambers (for ease of description, they are referred to as the front purification chamber, middle purification chamber, and rear purification chamber from front to back). Fresh activated carbon is conveyed to the top activated carbon feeding hopper via a conveying device. The activated carbon in the feeding hopper enters the front purification chamber, middle purification chamber, and rear purification chamber separately through three independent channels corresponding to the front purification chamber, middle purification chamber, and rear purification chamber, respectively. After a period of operation, the saturated activated carbon bed can be discharged into the adsorption tower discharge hopper through three independent discharge rollers and three independent channels for desorption and recycling. This structure allows for independent feeding and discharging of adsorbent in each bed within the tower without affecting each other. When one of the activated carbon bed layers becomes saturated and needs to be replaced (for example, when the activated carbon in the pre-purification chamber that comes into contact with the original flue gas becomes saturated first), there is no need to shut down the machine or use a bypass system. You can simply open the corresponding discharge roller in the pre-purification chamber for online discharge. After the discharge is completed, close the discharge roller and open the corresponding feeding valve in the pre-purification chamber to replenish fresh activated carbon adsorbent online. This allows you to replace any activated carbon layer online and achieve continuous operation of the flue gas system.

[0032] In this invention, when the flue gas volume or pollutant concentration changes, the number of operating bed layers can be calculated and selected based on the changes. For example, when the flue gas volume decreases by approximately 30%, all activated carbon in any bed layer of the pre-purification chamber, middle purification chamber, or post-purification chamber can be discharged and stored for later use. Only two activated carbon bed layers need to be operated to meet emission standards. This reduces flue gas resistance, lowers operating costs, and improves the system's adaptability to flue gas fluctuations. Furthermore, based on the width of the adsorption tower, a long-shaft roller discharger can be individually installed at the discharge port of each bed layer to ensure uniform discharge across the width of the adsorption tower. This eliminates the uneven discharge caused by conventional rotary valves or gate valves, preventing the activated carbon from moving within the tower or resulting in funnel-like flow, thus avoiding spontaneous combustion of activated carbon within the tower. Simultaneously, the discharge rate can be precisely controlled.

[0033] In this invention, the width adjustment mechanism mainly includes a driver, a rotating shaft, and a push plate. The porous movable partition can also be formed by splicing one or more small partitions from top to bottom. Each small partition is independently equipped with a width adjustment mechanism. When it is necessary to adjust the thickness of the adsorption bed, under the action of the driver, the free end of the push plate can rotate left and right within a certain angle range (the recommended adjustment angle is -45° to +45°, e.g., ...). Figure 5The diagram illustrates the adjustment angle at 45°. Through the linkage of the push plates, the porous movable partition can move left and right within a certain range, thereby changing the bed thickness. During operation, the rotation angle and direction of each small partition width adjustment mechanism should be consistent. Furthermore, to achieve better and more stable displacement control of the porous movable partition, multiple push plates and corresponding rotating shafts are arranged on the porous movable partition from top to bottom. The driver is connected to only one of the rotating shafts (referred to as the main rotating shaft to distinguish it from the others). The remaining rotating shafts are connected to the main rotating shaft via transmission rods, and under the action of the transmission rods, the remaining rotating shafts can rotate synchronously with the main rotating shaft. This allows for the synchronous rotation of multiple push plates arranged from top to bottom, achieving a smooth downward offset of the porous movable partition. It should be noted that the transmission rod only needs to be able to achieve synchronous rotation of all rotating shafts and can be any existing connection mechanism that meets the aforementioned functions. For example, the transmission rod can be a rack or chain with gears, that is, the rack or chain is connected to each rotating shaft through gears (each rotating shaft is equipped with gears of the same specification).

[0034] It should be noted that when adjusting the displacement of the porous movable baffle in the width direction using the width adjustment mechanism, the activated carbon in one purification chamber on the side of the pre-moving direction of the porous movable baffle needs to be emptied. At this time, the activated carbon in the other purification chambers continues to treat the flue gas normally, thus eliminating the need for shutdown. When it is necessary to adjust the displacement of all porous movable baffles, the operation must be performed gradually (the activated carbon in all purification chambers cannot be emptied at once).

[0035] In this invention, the translational distance (L) of the porous movable partition in the width direction can be calculated based on the effective length (D) of the pushing plate and the rotation angle (α), specifically:

[0036] L=D×sinα

[0037] In the formula, L is the distance the porous movable partition moves (m); D is the effective length of the push plate (m); and α is the angle of rotation of the push plate (°) (generally, the adjustment range is -45° to +45°). For example, if the effective length D of the push plate is 1m and the angle of rotation α is 30°, then according to the formula, the distance the porous movable partition moves is L = 1m × sin30° = 1m × 1 / 2 = 0.5m.

[0038] In this invention, to prevent material leakage due to gaps between the porous movable baffle and the top and bottom of the tower wall caused by upper and lower offset during translation, an upper baffle block and a lower baffle block are installed within the entire moving range of the baffle at the top and bottom of the tower wall. The baffle blocks are designed in an arc shape to fit the moving track of the baffle top and bottom, which neither affects the movement of the baffle nor prevents material leakage between bed layers. When the bed layer experiences poor feeding or uneven filling during operation, this adjustable method can be used to drive the porous movable baffle, causing the desulfurizer bed layer to sway left and right with the porous movable baffle. This quickly solves problems such as difficult feeding or uneven distribution, further improving the uniformity of absorbent distribution, accelerating feeding and discharging, increasing airflow speed, and shortening working time.

[0039] In this invention, to further improve the utilization efficiency of activated carbon and the purification effect on flue gas, a flue gas treatment system with a multi-stage adjustable activated carbon flue gas purification device is provided. This system can be configured with two or more stages of combined upper and lower adsorption towers according to different flue gas volumes and parameters. The upper and lower adsorption towers have interconnected adsorption unit bed layers, with independent shut-off valves controlling the interconnection channels. This multi-stage adsorption tower device has a small footprint, low investment, and uniform material feeding. Furthermore, activated carbon that is not fully adsorbed and saturated in the upper tower can be further recycled into the corresponding bed layer of the lower tower, achieving efficient utilization and distribution of activated carbon and reducing operating costs.

[0040] In this utility model, a two-stage adjustable activated carbon flue gas purification device is used as an example (for ease of description, the device located on the upper side is referred to as device A, and the device located on the lower side is referred to as device B). The industrial raw flue gas enters the flue gas inlet chamber of device B from left to right through the raw flue gas conveying pipeline. After preliminary purification by the activated carbon inside, it enters the flue gas exhaust chamber of device B and continues to enter the flue gas inlet chamber of device A through the flue gas transfer pipeline. After deep purification by the activated carbon inside, it enters the flue gas exhaust chamber of device A and is discharged in compliance with standards. Fresh activated carbon enters the front, middle, and rear beds of tower A through three independent channels, respectively, to deeply purify the incoming flue gas. The activated carbon from the front, middle, and rear beds of tower A then enters the rear, middle, and front beds of tower B through three independent feeding rollers and three independent channels for preliminary purification of the original flue gas. After a period of operation, the saturated activated carbon bed of tower B is discharged into the adsorption tower discharge hopper via the feeding roller at the bottom of tower B for further analysis and recycling. This multi-stage adsorption tower device with upper and lower configurations solves the problems of large footprint and high investment associated with conventional planar series multi-stage towers. Furthermore, because the activated carbon bed of tower B, located at the bottom and first in contact with the original flue gas, becomes saturated before the bed of tower A, this device allows unsaturated activated carbon in the upper unit A bed to directly enter the corresponding bed in the lower unit B for further use via connecting channels, achieving efficient utilization and distribution of activated carbon and reducing operating costs.

[0041] In this invention, the total height of the tower body is 1–50 m, preferably 2–40 m, and more preferably 3–30 m; the total width of the tower body is 1–30 m, preferably 2–20 m, and more preferably 3–15 m. The thickness of the porous movable partition is 1–100 mm, preferably 3–50 mm, and more preferably 5–30 mm.

[0042] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0043] 1: The layered adjustable activated carbon flue gas purification device of this utility model solves the problems of severe mechanical wear of activated carbon particles in conventional processes due to long-term oversaturation and contact with the original flue gas in the front part, blockage of activated carbon channels, uneven flue gas distribution, poor material discharge, increased resistance, low activated carbon utilization rate, and difficulty in activated carbon regeneration by using the cross-flow activated carbon adsorption structure of the bed.

[0044] 2. The layered adjustable activated carbon flue gas purification device of this utility model features independent feeding and discharging structures for the activated carbon inlet and outlet of each bed unit, without independent shut-off valves. This allows for selection of the number of operating bed layers based on actual operating conditions, reducing flue gas resistance and achieving flexibility and efficiency while ensuring emission standards are met. This improves the system's adaptability to flue gas fluctuations. Furthermore, when activated carbon in one bed becomes saturated and needs replacement, it can be done quickly and online without stopping the system or using a bypass system, enabling continuous operation of the flue gas system.

[0045] 3: The flue gas inlet and outlet channels of the layered adjustable activated carbon flue gas purification device of this utility model adopt a louver structure between the flue gas inlet and outlet channels and the activated carbon layer. This can avoid the problems of ash accumulation and excessive dust in the flue gas duct caused by conventional porous baffles. In addition, the louver structure also acts as a guide plate, making the entire flue gas system smoother and more uniform, which is more conducive to ensuring the adsorption effect.

[0046] 4. This utility model's layered adjustable activated carbon flue gas purification device, through the design of adjustable porous movable baffles, allows for flexible adjustment of the activated carbon thickness in each bed unit. Furthermore, based on project characteristics or changes in actual operating parameters, the thickness of each bed can be individually adjusted online to match the flue gas parameters. Additionally, the saturation time and degree of activated carbon in each chamber can be adjusted, thereby optimizing the overall activated carbon feeding frequency, reducing activated carbon wear, and more effectively controlling the concentration of dust and other pollutants emitted during feeding, improving activated carbon utilization and regeneration efficiency, and thus reducing operating costs. Moreover, it can improve the uniformity of activated carbon distribution, solve the problem of poor discharge, accelerate feeding and discharging, increase operating efficiency, and shorten working time.

[0047] 5. The activated carbon flue gas purification system provided by this utility model can be set and selected according to different flue gas volumes and flue gas parameters. The number of stages of the combined purification device arranged vertically can be selected, and the upper and lower purification devices are connected to the corresponding adsorption unit material layers. The connecting channel is equipped with an independent shut-off valve for control. This multi-stage purification device has the characteristics of small footprint, low investment, and uniform material feeding. It can also realize the efficient utilization and distribution of activated carbon, further reducing operating costs. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of an existing activated carbon adsorption device.

[0049] Figure 2 This is a schematic diagram of the overall structure of the layered adjustable activated carbon flue gas purification device of this utility model.

[0050] Figure 3 This is a front cross-sectional view of the layered adjustable activated carbon flue gas purification device of this utility model.

[0051] Figure 4 for Figure 3 A schematic diagram of the structure along direction A.

[0052] Figure 5 for Figure 3 Schematic diagram of the BB cross-section structure.

[0053] Figure 6 To push the plate into its initial state Figure 3 Schematic diagram of the BB cross-section structure.

[0054] Figure 7 This is a schematic diagram of the activated carbon flue gas purification system of this utility model.

[0055] Reference numerals in the attached diagram: 1: Tower body; 101: Perforated movable baffle; 102: Purification chamber; 103: Feeding roller; 104: Feeding bin; 2: Flue gas inlet chamber; 3: Flue gas exhaust chamber; 4: Width adjustment mechanism; 401: Driver; 402: Rotating shaft; 403: Push plate; 404: Transmission link; 5: Upper baffle block; 6: Lower baffle block; 7: Activated carbon feeding bin; 701: Feed valve pipe; 8: Booster fan; L1: Original flue gas conveying pipe; L2: Flue gas transfer pipe; L3: Flue gas exhaust pipe. Detailed Implementation

[0056] The technical solution of this utility model is illustrated below. The scope of protection of this utility model includes, but is not limited to, the following embodiments.

[0057] A layered adjustable activated carbon flue gas purification device includes a tower body 1, a flue gas inlet chamber 2, and a flue gas exhaust chamber 3. The flue gas inlet chamber 2 is located on the front side of the front wall of the tower body 1 and communicates with the inner cavity of the tower body 1. The flue gas exhaust chamber 3 is located on the rear side of the rear wall of the tower body 1 and communicates with the inner cavity of the tower body 1. The inner cavity of the tower body 1 is divided into multiple purification chambers 102 connected in series along the width direction by a porous movable partition 101 from front to back. A width adjustment mechanism 4 is also provided on the longitudinal side wall of the tower body 1 perpendicular to the width direction. The width adjustment mechanism 4 passes through the tower body 1 and is connected to the porous movable partition 101 located inside it. By adjusting the displacement of any porous movable partition 101 in the width direction through the width adjustment mechanism 4, the width of any purification chamber 102 can be adjusted. An air inlet is provided on the flue gas inlet chamber 2, and an exhaust outlet is provided on the flue gas exhaust chamber 3. As a preferred design, both the front and rear side walls of tower body 1 are designed with louvers.

[0058] Preferably, the width adjustment mechanism 4 includes a driver 401, a rotating shaft 402, and a pusher plate 403. The driver 401 is disposed outside the longitudinal sidewall of the tower body 1. One end of the rotating shaft 402 is connected to the driver 401, and the other end extends through the longitudinal sidewall of the tower body 1 into the interior of the tower body 1. The pusher plate 403 is disposed inside the tower body 1 and located between the longitudinal sidewall of the tower body 1 and the porous movable partition 101. One end of the pusher plate 403 is perpendicularly connected to the rotating shaft 402, and the other end is connected to the porous movable partition 101. The driver 401 drives the pusher plate 403 to rotate in the width direction via the rotating shaft 402, thereby pushing the porous movable partition 101 to move in the width direction.

[0059] Preferably, multiple push plates 403 and multiple rotating shafts 402 corresponding to the push plates 403 are arranged from top to bottom between the longitudinal sidewall of the tower body 1 and the porous movable partition 101. Outside the tower body 1, the driver 401 is connected to any one of the multiple rotating shafts 402, and the rotating shaft 402 connected to the driver 401 is then connected to the remaining rotating shafts 402 via a transmission link 404. The driver 401 drives the connected rotating shaft 402 to rotate, and this rotating shaft 402 then drives the remaining rotating shafts 402 to rotate synchronously via the transmission link 404, thereby causing all the push plates 403 to rotate synchronously in the width direction.

[0060] Preferably, the ends of all rotating shafts 402 away from the driver 401 are longitudinally inserted through the inner cavity of the tower body 1 and connected to the other longitudinal sidewall of the tower body. A push plate 403 is respectively provided on the rotating shafts 402 located on both longitudinal sides of the porous movable partition 101 and between the two longitudinal sidewalls of the tower body 1, and the two push plates 403 rotate synchronously with the rotation of the rotating shafts 402.

[0061] Preferably, the number of perforated movable partitions 101 inside the tower body 1 is 1 to 100, more preferably 2 to 80, and even more preferably 3 to 50. Each perforated movable partition 101 is independently equipped with a width adjustment mechanism 4.

[0062] Preferably, on any porous movable partition 101: the diameter of a single through hole is 2–10 mm, preferably 3–5 mm. The opening ratio is 30–80%, preferably 40–70%.

[0063] Preferably, an upper baffle block 5 is provided at the top of the inner cavity of the tower body 1, and a lower baffle block 6 is provided at the bottom of the inner cavity of the tower body 1. The lower end of the upper baffle block 5 is in contact with the top end of the porous movable baffle 101, and the upper end of the lower baffle block 6 is in contact with the bottom end of the porous movable baffle 101. The lower end of the upper baffle block 5 is a convex arc-shaped end face extending in the width direction, and the upper end of the porous movable baffle 101 is a concave arc-shaped end face extending in the width direction.

[0064] Preferably, in the vertical direction, any perforated movable partition 101 is composed of multiple small partitions connected in series, and each small partition is provided with an independent width adjustment mechanism 4 on the longitudinal side wall of the tower body 1.

[0065] Preferably, the vertical height of a single small partition is no more than 5m, and more preferably 0.5 to 3m.

[0066] Preferably, an activated carbon feeding hopper 7 is also provided at the top of the tower body 1. The discharge port of the activated carbon feeding hopper 7 is connected to the top inlet of each purification chamber 102 through an independent feed valve pipe 701. A discharge roller 103 and a discharge hopper 104 are independently provided at the bottom discharge port of each purification chamber 102.

[0067] Preferably, the width of any one of the purification chambers 102 is 0.5 to 2 m, and more preferably 0.8 to 1.6 m.

[0068] Preferably, the height of any one of the purification chambers 102 in the vertical direction is 1 to 20 m, and more preferably 2 to 15 m.

[0069] An activated carbon flue gas purification system includes multiple layered adjustable activated carbon flue gas purification devices connected in series in the vertical direction as described above.

[0070] Preferably, the system consists of two layered adjustable activated carbon flue gas purification devices connected in series, one above the other. According to the flue gas flow direction, the original flue gas conveying pipe L1 is connected to the inlet of the lower flue gas inlet chamber 2 via a booster fan 8. The exhaust port of the lower flue gas exhaust chamber 3 is connected to the inlet of the upper flue gas inlet chamber 2 via a flue gas transfer pipe L2. The exhaust port of the upper flue gas exhaust chamber 3 is connected to the flue gas emission pipe L3.

[0071] Based on the orientation of the activated carbon, the bottom discharge port of the first purification chamber 102 on the side of the upper tower 1 closest to its flue gas inlet chamber 2 is connected to the top feed port of the first purification chamber 102 on the side of the lower tower 1 closest to its flue gas exhaust chamber 3. Similarly, the bottom discharge port of the second purification chamber 102 on the side of the upper tower 1 closest to its flue gas inlet chamber 2 is connected to the top feed port of the second purification chamber 102 on the side of the lower tower 1 closest to its flue gas exhaust chamber 3. And so on, with the bottom discharge port of the last purification chamber 102 on the side of the upper tower 1 closest to its flue gas inlet chamber 2 connected to the top feed port of the last purification chamber 102 on the side of the lower tower 1 closest to its flue gas exhaust chamber 3.

[0072] Example 1

[0073] like Figure 2-6 As shown, a layered adjustable activated carbon flue gas purification device includes a tower body 1, a flue gas inlet chamber 2, and a flue gas exhaust chamber 3. The flue gas inlet chamber 2 is located on the front side of the front wall of the tower body 1 and communicates with the inner cavity of the tower body 1. The flue gas exhaust chamber 3 is located on the rear side of the rear wall of the tower body 1 and communicates with the inner cavity of the tower body 1. The inner cavity of the tower body 1 is divided into multiple purification chambers 102 connected in series along the width direction by a porous movable partition 101 from front to back. A width adjustment mechanism 4 is also provided on the longitudinal side wall of the tower body 1 perpendicular to the width direction. The width adjustment mechanism 4 passes through the tower body 1 and is connected to the porous movable partition 101 located inside it. By adjusting the displacement of any porous movable partition 101 in the width direction through the width adjustment mechanism 4, the width of any purification chamber 102 can be adjusted. An air inlet is provided on the flue gas inlet chamber 2, and an exhaust outlet is provided on the flue gas exhaust chamber 3. Both the front and rear side walls of tower body 1 are designed with louvers.

[0074] Example 2

[0075] The embodiment 1 is repeated, except that the width adjustment mechanism 4 includes a driver 401, a rotating shaft 402, and a pusher plate 403. The driver 401 is located outside the longitudinal sidewall of the tower body 1. One end of the rotating shaft 402 is connected to the driver 401, and the other end extends through the longitudinal sidewall of the tower body 1 into the interior of the tower body 1. The pusher plate 403 is located inside the tower body 1, between the longitudinal sidewall of the tower body 1 and the porous movable partition 101. One end of the pusher plate 403 is perpendicularly connected to the rotating shaft 402, and the other end is connected to the porous movable partition 101. The driver 401 drives the pusher plate 403 to rotate in the width direction via the rotating shaft 402, thereby pushing the porous movable partition 101 to move in the width direction.

[0076] Example 3

[0077] The embodiment 2 is repeated, except that multiple push plates 403 and multiple rotating shafts 402 corresponding to the push plates 403 are arranged from top to bottom between the longitudinal sidewall of the tower body 1 and the porous movable partition 101. Outside the tower body 1, the driver 401 is connected to any one of the multiple rotating shafts 402, and the rotating shaft 402 connected to the driver 401 is then connected to the remaining rotating shafts 402 via a transmission link 404. The driver 401 drives the connected rotating shaft 402 to rotate, and this rotating shaft 402 then drives the remaining rotating shafts 402 to rotate synchronously via the transmission link 404, thereby causing all the push plates 403 to rotate synchronously in the width direction.

[0078] Example 4

[0079] Example 3 is repeated, except that the end of all rotating shafts 402 away from the driver 401 passes through the inner cavity of the tower body 1 longitudinally and connects to the other longitudinal side wall of the tower body. A push plate 403 is respectively provided on the rotating shaft 402 located on both longitudinal sides of the porous movable partition 101 and between the two longitudinal side walls of the tower body 1. The two push plates 403 rotate synchronously with the rotation of the rotating shaft 402.

[0080] Example 5

[0081] The same principle applies to embodiment 4, except that there are two porous movable partitions 101 inside the tower body 1. Each porous movable partition 101 is independently equipped with a width adjustment mechanism 4.

[0082] Example 6

[0083] Repeat Example 5, except that inside the tower body 1, there are 4 porous movable baffles 101.

[0084] Example 7

[0085] Example 5 is repeated, except that on any of the porous movable partitions 101, the diameter of a single through hole is 4 mm. The porosity is 60%.

[0086] Example 8

[0087] The embodiment 7 is repeated, except that an upper baffle block 5 is also provided at the top of the inner cavity of the tower body 1, and a lower baffle block 6 is also provided at the bottom of the inner cavity of the tower body 1. The lower end of the upper baffle block 5 is in contact with the top end of the porous movable baffle 101, and the upper end of the lower baffle block 6 is in contact with the bottom end of the porous movable baffle 101. The lower end of the upper baffle block 5 is a convex arc-shaped end face extending in the width direction, and the upper end of the porous movable baffle 101 is a concave arc-shaped end face extending in the width direction.

[0088] Example 9

[0089] Repeat Example 8, except that in the vertical direction, any perforated movable partition 101 is composed of multiple small partitions connected in series, and each small partition is independently provided with a width adjustment mechanism 4 connected to that small partition on the longitudinal side wall of the tower body 1.

[0090] Example 10

[0091] Repeat Example 9, except that the vertical height of a single small partition is 0.8m.

[0092] Example 11

[0093] Repeat Example 10, except that the vertical height of a single small partition is 1.1m.

[0094] Example 12

[0095] The embodiment 11 is repeated, except that an activated carbon feeding hopper 7 is also provided at the top of the tower body 1. The discharge port of the activated carbon feeding hopper 7 is connected to the top feed port of each purification chamber 102 through an independent feed valve pipe 701. A discharge roller 103 and a discharge hopper 104 are independently provided at the bottom discharge port of each purification chamber 102.

[0096] Example 13

[0097] Repeat Example 12, except that in the width direction, the width of any one of the purification chambers 102 is 0.7m.

[0098] Example 14

[0099] Example 13 is repeated, except that in the width direction, the width of any one of the purification chambers 102 is 1.0m.

[0100] Example 15

[0101] Repeat Example 14, except that in the vertical direction, the height of any one of the purification chambers 102 is 2m.

[0102] Example 16

[0103] Repeat Example 15, except that in the vertical direction, the height of any one of the purification chambers 102 is 3m.

[0104] Example 17

[0105] like Figure 7 As shown, an activated carbon flue gas purification system includes multiple layered adjustable activated carbon flue gas purification devices as described in Example 16, which are connected in series in the vertical direction.

[0106] Example 18

[0107] The system repeats Example 17, except that it consists of two layered adjustable activated carbon flue gas purification devices connected in series, one above the other. According to the flue gas flow direction, the original flue gas conveying pipe L1 is connected to the inlet of the lower flue gas inlet chamber 2 via a booster fan 8. The exhaust port of the lower flue gas exhaust chamber 3 is connected to the inlet of the upper flue gas inlet chamber 2 via a flue gas transfer pipe L2. The exhaust port of the upper flue gas exhaust chamber 3 is connected to the flue gas emission pipe L3.

[0108] Based on the orientation of the activated carbon, the bottom discharge port of the first purification chamber 102 on the side of the upper tower 1 closest to its flue gas inlet chamber 2 is connected to the top feed port of the first purification chamber 102 on the side of the lower tower 1 closest to its flue gas exhaust chamber 3. Similarly, the bottom discharge port of the second purification chamber 102 on the side of the upper tower 1 closest to its flue gas inlet chamber 2 is connected to the top feed port of the second purification chamber 102 on the side of the lower tower 1 closest to its flue gas exhaust chamber 3. And so on, with the bottom discharge port of the last purification chamber 102 on the side of the upper tower 1 closest to its flue gas inlet chamber 2 connected to the top feed port of the last purification chamber 102 on the side of the lower tower 1 closest to its flue gas exhaust chamber 3.

Claims

1. A layered adjustable activated carbon flue gas purification device, characterized in that: The device includes a tower body (1), a flue gas inlet chamber (2), and a flue gas exhaust chamber (3); the flue gas inlet chamber (2) is located on the front side of the front wall of the tower body (1) and communicates with the inner cavity of the tower body (1); the flue gas exhaust chamber (3) is located on the rear side of the rear wall of the tower body (1) and communicates with the inner cavity of the tower body (1); the inner cavity of the tower body (1) is divided into multiple purification chambers (102) connected in series along the width direction by a porous movable partition (101) from front to back; in the tower body (1) A width adjustment mechanism (4) is also provided on the longitudinal side wall perpendicular to the width direction. The width adjustment mechanism (4) passes through the tower body (1) and is connected to the porous movable partition (101) located inside it. The width adjustment mechanism (4) can adjust the displacement of any porous movable partition (101) in the width direction, thereby realizing the adjustment of the width of any purification chamber (102). An air inlet is provided on the flue gas inlet chamber (2), and an exhaust port is provided on the flue gas exhaust chamber (3).

2. The apparatus according to claim 1, characterized in that: The width adjustment mechanism (4) includes a driver (401), a rotating shaft (402), and a push plate (403). The driver (401) is located outside the longitudinal sidewall of the tower body (1). One end of the rotating shaft (402) is connected to the driver (401), and the other end extends through the longitudinal sidewall of the tower body (1) into the interior of the tower body (1). The push plate (403) is located inside the tower body (1) and between the longitudinal sidewall of the tower body (1) and the porous movable partition (101). One end of the push plate (403) is perpendicularly connected to the rotating shaft (402), and the other end is connected to the porous movable partition (101). The driver (401) drives the push plate (403) to rotate in the width direction through the rotating shaft (402), thereby pushing the porous movable partition (101) to move in the width direction.

3. The apparatus according to claim 2, characterized in that: Multiple push plates (403) and multiple rotating shafts (402) corresponding to the push plates (403) are arranged from top to bottom between the longitudinal sidewall of the tower body (1) and the porous movable partition (101). Outside the tower body (1), the driver (401) is connected to any one of the multiple rotating shafts (402), and the rotating shaft (402) connected to the driver (401) is then connected to the other rotating shafts (402) through the transmission link (404). The driver (401) drives the rotating shaft (402) connected to it to rotate, and the rotating shaft (402) then drives the other rotating shafts (402) to rotate synchronously through the transmission link (404), thereby driving all the push plates (403) to rotate synchronously in the width direction.

4. The apparatus according to claim 2, characterized in that: All rotating shafts (402) have one end away from the driver (401) that runs longitudinally through the inner cavity of the tower body (1) and connects to the other longitudinal side wall of the tower body; each of the rotating shafts (402) located on the longitudinal sides of the porous movable partition (101) and between the two longitudinal side walls of the tower body (1) is provided with a push plate (403), and the two push plates (403) rotate synchronously with the rotation of the rotating shaft (402).

5. The apparatus according to claim 2, characterized in that: Inside the tower body (1), there are 1 to 100 perforated movable partitions (101); each perforated movable partition (101) is independently equipped with a width adjustment mechanism (4).

6. The apparatus according to claim 5, characterized in that: Inside the tower body (1), there are 2 to 80 porous movable baffles (101).

7. The apparatus according to claim 6, characterized in that: Inside the tower body (1), there are 3 to 50 porous movable baffles (101).

8. The apparatus according to claim 5, characterized in that: On any porous movable partition (101): the diameter of a single through hole is 2 to 10 mm; the opening ratio is 30 to 80%.

9. The apparatus according to claim 8, characterized in that: On any porous movable partition (101): the diameter of a single through hole is 3-5 mm; the opening ratio is 40-70%.

10. The apparatus according to any one of claims 1-9, characterized in that: A baffle upper stop (5) is provided at the top of the inner cavity of the tower body (1), and a baffle lower stop (6) is provided at the bottom of the inner cavity of the tower body (1); the lower end of the baffle upper stop (5) is in contact with the top end of the porous movable baffle (101), and the upper end of the baffle lower stop (6) is in contact with the bottom end of the porous movable baffle (101); the lower end of the baffle upper stop (5) is a convex arc-shaped end face extending in the width direction, and the upper end of the porous movable baffle (101) is a concave arc-shaped end face extending in the width direction.

11. The apparatus according to any one of claims 1-9, characterized in that: In the vertical direction, any perforated movable partition (101) is composed of multiple small partitions connected in series, and a width adjustment mechanism (4) is independently provided on the longitudinal side wall of the tower body (1) corresponding to each small partition.

12. The apparatus according to claim 10, characterized in that: In the vertical direction, any perforated movable partition (101) is composed of multiple small partitions connected in series, and a width adjustment mechanism (4) is independently provided on the longitudinal side wall of the tower body (1) corresponding to each small partition.

13. The apparatus according to claim 11, characterized in that: The vertical height of a single small partition shall not exceed 5m.

14. The apparatus according to claim 12, characterized in that: The vertical height of a single small partition shall not exceed 5m.

15. The apparatus according to claim 13 or 14, characterized in that: The vertical height of a single small partition is 0.5 to 3 meters.

16. The apparatus according to any one of claims 1-9 and 12-14, characterized in that: An activated carbon feeding hopper (7) is also provided at the top of the tower body (1). The discharge port of the activated carbon feeding hopper (7) is connected to the top feed port of each purification chamber (102) through an independent feed valve pipe (701). A discharge roller (103) and a discharge hopper (104) are independently provided at the bottom discharge port of each purification chamber (102).

17. The apparatus according to claim 10, characterized in that: An activated carbon feeding hopper (7) is also provided at the top of the tower body (1). The discharge port of the activated carbon feeding hopper (7) is connected to the top feed port of each purification chamber (102) through an independent feed valve pipe (701). A discharge roller (103) and a discharge hopper (104) are independently provided at the bottom discharge port of each purification chamber (102).

18. The apparatus according to claim 11, characterized in that: An activated carbon feeding hopper (7) is also provided at the top of the tower body (1). The discharge port of the activated carbon feeding hopper (7) is connected to the top feed port of each purification chamber (102) through an independent feed valve pipe (701). A discharge roller (103) and a discharge hopper (104) are independently provided at the bottom discharge port of each purification chamber (102).

19. The apparatus according to any one of claims 1-9, 12-14, and 17-18, characterized in that: In the width direction, the width of any one of the purification chambers (102) is 0.5 to 2 m; and / or In the vertical direction, the height of any one of the purification chambers (102) is 1 to 20 m.

20. The apparatus according to claim 10, characterized in that: In the width direction, the width of any one of the purification chambers (102) is 0.5 to 2 m; and / or In the vertical direction, the height of any one of the purification chambers (102) is 1 to 20 m.

21. The apparatus according to claim 11, characterized in that: In the width direction, the width of any one of the purification chambers (102) is 0.5 to 2 m; and / or In the vertical direction, the height of any one of the purification chambers (102) is 1 to 20 m.

22. The apparatus according to claim 16, characterized in that: In the width direction, the width of any one of the purification chambers (102) is 0.5 to 2 m; and / or In the vertical direction, the height of any one of the purification chambers (102) is 1 to 20 m.

23. The apparatus according to claim 19, characterized in that: In the width direction, the width of any one of the purification chambers (102) is 0.8–1.6 m; and / or In the vertical direction, the height of any one of the purification chambers (102) is 2 to 15 m.

24. The apparatus according to any one of claims 20-22, characterized in that: In the width direction, the width of any one of the purification chambers (102) is 0.8–1.6 m; and / or In the vertical direction, the height of any one of the purification chambers (102) is 2 to 15 m.

25. The apparatus according to any one of claims 1-9, 12-14, 17-18, and 20-23, characterized in that: The front and rear side walls of the tower body (1) are both designed with louvers.

26. The apparatus according to claim 10, characterized in that: The front and rear side walls of the tower body (1) are both designed with louvers.

27. The apparatus according to claim 11, characterized in that: The front and rear side walls of the tower body (1) are both designed with louvers.

28. The apparatus according to claim 16, characterized in that: The front and rear side walls of the tower body (1) are both designed with louvers.

29. The apparatus according to claim 19, characterized in that: The front and rear side walls of the tower body (1) are both designed with louvers.

30. An activated carbon flue gas purification system, characterized in that: The system includes multiple layered adjustable activated carbon flue gas purification devices as described in any one of claims 1-29, which are connected in series in the vertical direction.

31. The activated carbon flue gas purification system according to claim 30, characterized in that: The system consists of two layered adjustable activated carbon flue gas purification devices connected in series, one above the other. According to the direction of the flue gas, the original flue gas conveying pipeline (L1) is connected to the inlet of the lower flue gas inlet chamber (2) through a booster fan (8); the exhaust port of the lower flue gas exhaust chamber (3) is connected to the inlet of the upper flue gas inlet chamber (2) through a flue gas transfer pipeline (L2); and the exhaust port of the upper flue gas exhaust chamber (3) is connected to the flue gas emission pipeline (L3). According to the direction of the activated carbon, the bottom discharge port of the first purification chamber (102) of the upper tower (1) near its flue gas inlet chamber (2) is connected to the top feed port of the first purification chamber (102) of the lower tower (1) near its flue gas exhaust chamber (3); the bottom discharge port of the second purification chamber (102) of the upper tower (1) near its flue gas inlet chamber (2) is connected to the top feed port of the second purification chamber (102) of the lower tower (1) near its flue gas exhaust chamber (3); and so on, the bottom discharge port of the last purification chamber (102) of the upper tower (1) near its flue gas inlet chamber (2) is connected to the top feed port of the last purification chamber (102) of the lower tower (1) near its flue gas exhaust chamber (3).

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