A deep dust removal device for flue gas purification by activated carbon

Abstract

This utility model provides a deep dust removal device for activated carbon flue gas purification process, including multiple sets of exhaust fans. The output end of each set of exhaust fans is connected to a flue gas heat exchanger. The output end of the flue gas heat exchanger is sequentially connected to a first adsorption tower and a second adsorption tower. A cartridge dust collector is installed at the flue gas outlet of the second adsorption tower. The cartridge dust collector includes a dust removal mechanism. A detachable sealing mechanism is provided on the front of the dust removal mechanism. Several flue gas filter cartridges are inserted into the interior of the dust removal mechanism. A discharge hopper is provided at the bottom of the dust removal mechanism. In use, multiple air inlet pipes and exhaust pipes are connected to the interior of the filter box. A first solenoid valve is installed on the air inlet pipe, and a second solenoid valve is installed on the exhaust pipe. An external controller controls all the first and second solenoid valves to change the air intake and exhaust volume inside the filter box, achieving an adaptive adjustment effect according to emission standards.

Description

Technical Field

[0001] This utility model relates to the field of flue gas purification technology, and in particular to a deep dust removal device for activated carbon flue gas purification process. Background Technology

[0002] Activated carbon flue gas purification technology can simultaneously remove multiple pollutants such as SO2, NOx, dioxins, heavy metals and dust, and can also recover sulfur resources. It is a resource-recovery type of comprehensive flue gas treatment technology.

[0003] Activated carbon flue gas purification technology has gradually become the main process route for flue gas treatment due to its advantages such as low operating cost, ability to meet various flue gas loads, comprehensive utilization of by-products, and no secondary pollution.

[0004] The existing technology is as follows: Figure 1 As shown, after adopting the two-stage activated carbon flue gas purification process, the dust concentration can be stably maintained at <10mg / Nm3. In some key areas, the emission concentration requirements are even higher, requiring a dust concentration of <5mg / Nm3. To address this, a deep dust removal system needs to be added to the activated carbon flue gas purification process.

[0005] To meet stricter environmental requirements in some key regions, some companies have adopted cartridge dust collectors to improve the purification effect of activated carbon flue gas. However, traditional cartridge dust collectors cannot be effectively adjusted according to the flue gas emission load and cannot be adapted to all operating conditions.

[0006] Therefore, this application proposes a deep dust removal device for activated carbon flue gas purification process to solve this problem. Utility Model Content

[0007] In view of the shortcomings of the prior art mentioned above, the purpose of this utility model is to provide a deep dust removal device for activated carbon flue gas purification process, which solves the problem of weak adaptability of traditional activated carbon flue gas purification devices mentioned in the prior art.

[0008] To achieve the above and other related objectives, this utility model provides a deep dust removal device for activated carbon flue gas purification process, including multiple sets of exhaust fans. The output end of each set of exhaust fans is connected to a flue gas heat exchanger. The output end of the flue gas heat exchanger is sequentially connected to a first adsorption tower and a second adsorption tower. A filter cartridge dust collector is installed at the flue gas outlet of the second adsorption tower.

[0009] The cartridge dust collector includes a dust removal mechanism, a separable sealing mechanism on the front of the dust removal mechanism, several flue gas filter cartridges inserted inside the dust removal mechanism, and a discharge hopper at the bottom of the dust removal mechanism, which is connected to the interior of the dust removal mechanism.

[0010] The dust removal mechanism includes a filter box, and the top of the filter box is provided with several air inlet pipes that communicate with the interior of the filter box. Each air inlet pipe is equipped with a first solenoid valve.

[0011] The back of the filter box is provided with several air outlets, each of which is connected to an exhaust pipe. Each exhaust pipe is provided with a second solenoid valve, and each flue gas filter cartridge is connected to each air outlet.

[0012] Preferably, the sealing mechanism includes a sealing cover, on which filter cartridge insertion holes are provided that are adapted to the position and number of air outlet holes, and the flue gas filter cartridge is inserted into the filter cartridge insertion hole and extends into the air outlet hole.

[0013] Preferably, the flue gas filter cartridge includes a pleated filter element, one end of which is provided with a rigid end, and the other end of which is provided with a manual valve, which is placed inside the filter cartridge insertion hole and supported.

[0014] Preferably, each of the air outlets is provided with a filter cylinder support sleeve on the side facing the inside of the filter box, and each of the filter cylinder insertion holes is provided with a threaded groove on the side facing the filter box.

[0015] One end of the rigid end of the pleated filter element extends into the interior of the filter cylinder support sleeve and is supported thereon. The outer surface of the manual valve is provided with an external thread, which is threadedly connected to the threaded groove.

[0016] Preferably, a gas collection mechanism is provided on the back of the filter box, which covers all exhaust pipes to concentrate the exhaust gas.

[0017] Preferably, the gas collection mechanism includes a gas collection hood, which is detachably connected to the back of the filter box. The gas collection hood is provided with an external pipe, and a cable outlet groove is provided at the connection between the gas collection hood and the filter box.

[0018] Preferably, the filter box is provided with several ash-collecting mechanisms inside. The ash-collecting mechanisms can rotate when air is introduced through the air inlet pipe. The rotating ash-collecting mechanisms are used to beat the flue gas filter cartridge.

[0019] Preferably, the dust collection mechanism includes a flap support rod, the two ends of which are supported by the inner wall of the filter box and the inside of the sealing cover, respectively.

[0020] The outer surface of the flap support rod is provided with a plurality of ash-collecting flaps arranged in an equidistant circular array, and the ash-collecting flaps can contact the outer surface of the flue gas filter cartridge.

[0021] Preferably, the dust-collecting flaps are elastic, and all the dust-collecting flaps bend in the same direction to form a fan shape.

[0022] Preferably, a support rod connecting sleeve is provided between four adjacent air outlets inside the filter box, and a support rod stabilizing sleeve adapted to the position of the support rod connecting sleeve is provided on the side of the sealing cover facing the filter box. The inner diameter of both the support rod connecting sleeve and the support rod stabilizing sleeve is adapted to the diameter of the flap support rod.

[0023] The two ends of the flap support rod are respectively inserted into the inside of the support rod connecting sleeve and the support rod stabilizing sleeve.

[0024] As described above, the activated carbon flue gas purification deep dust removal device of this utility model has the following beneficial effects:

[0025] 1. This utility model connects multiple air inlet pipes and exhaust pipes to the inside of the filter box. A first solenoid valve is installed on the air inlet pipe and a second solenoid valve is installed on the exhaust pipe. An external controller controls all the first and second solenoid valves to change the air intake and exhaust volume inside the filter box, achieving an adaptive adjustment effect according to emission standards.

[0026] 2. This utility model installs the flue gas filter cartridges in a modular manner inside the filter box, and allows the sealing cover to be separated from the opening of the filter box. During maintenance, the flue gas filter cartridges can be disassembled and replaced separately. At the same time, the sealing cover can be opened to clean the inside of the filter box, achieving the effect of convenient maintenance.

[0027] 3. This utility model sets up a flap support rod inside the filter box and sets up ash-collecting flaps in a circular array on the outer surface of the flap support rod. When the flue gas enters the filter box from the inlet pipe, the airflow blows the ash-collecting flaps, causing them to rotate and beat the outer surface of the pleated filter element, causing the carbon powder attached to the outer surface of the pleated filter element to fall off, thereby improving the carbon powder recovery efficiency and preventing the pleated filter element from clogging.

[0028] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0029] Figure 1 The diagram shows the existing two-stage activated carbon flue gas purification process.

[0030] Figure 2 The diagram shown is a flow chart of the activated carbon flue gas purification process of this utility model.

[0031] Figure 3 The diagram shown is a plan view of the area layout of the cartridge dust collector of this utility model.

[0032] Figure 4 This utility model is shown. Figure 3Sectional view of the medium-sized cartridge dust collector area AA.

[0033] Figure 5 The diagram shown is a structural schematic of the dust removal mechanism of this utility model.

[0034] Figure 6 The image shown is a rear view of the dust removal mechanism of this utility model.

[0035] Figure 7 The diagram shown is a structural schematic of the exhaust pipe of this utility model.

[0036] Figure 8 The diagram shown is a schematic representation of the internal structure of the dust collector box of this utility model.

[0037] Figure 9 The diagram shown is a structural schematic of the sealing mechanism of this utility model.

[0038] Figure 10 The diagram shown is a structural schematic of the dust collection mechanism of this utility model.

[0039] Figure 11 This is a front view showing the installation position of the dust collection mechanism of this utility model.

[0040] Component designation explanation:

[0041] 1. Dust removal mechanism; 11. Filter box; 12. Air inlet pipe; 13. First solenoid valve; 14. Air outlet; 15. Exhaust pipe; 16. Second solenoid valve; 17. Filter cartridge support sleeve; 18. Support rod connecting sleeve;

[0042] 2. Sealing mechanism; 21. Sealing cover; 22. Filter cartridge insertion hole; 23. Threaded groove; 24. Support rod stabilizing sleeve;

[0043] 3. Flue gas filter cartridge; 31. Pleated filter element; 32. Manual valve; 33. External thread;

[0044] 4. Discharge hopper;

[0045] 5. Gas collection mechanism; 51. Gas collection hood; 52. External connecting pipe; 53. Cable outlet trough;

[0046] 6. Ash collection mechanism; 61. Flare support rod; 62. Ash collection flap;

[0047] 7. Cartridge dust collector;

[0048] 8. Exhaust fan; 9. Flue gas heat exchanger; 10. First adsorption tower; 101. Second adsorption tower. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0050] Please see Figures 2 to 11 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0051] like Figures 2-4 As shown, this utility model provides a deep dust removal device for activated carbon flue gas purification process, including multiple sets of exhaust fans 8. The output end of each set of exhaust fans 8 is connected to a flue gas heat exchanger 9. The output end of the flue gas heat exchanger 9 is sequentially connected to a first adsorption tower 10 and a second adsorption tower 101. A cartridge dust collector 7 is installed at the flue gas outlet of the second adsorption tower 101. The cartridge dust collector 7 and the flue gas duct of the second adsorption tower 101 share a support frame to reduce the space occupied.

[0052] like Figures 5-7 As shown, the cartridge dust collector 7 includes a dust collection mechanism 1 and a sealing mechanism 2. The sealing mechanism 2 is detachably disposed on the front of the dust collection mechanism 1. Unpurified flue gas enters the interior of the dust collection mechanism 1 for purification, and the purified flue gas is discharged from the dust collection mechanism 1. The detachable sealing mechanism 2 on the front of the dust collection mechanism 1 is used to seal the interior of the dust collection mechanism 1. The interior of the dust collection mechanism 1 can be maintained by opening the sealing mechanism 2. Several flue gas filter cartridges 3 are inserted into the interior of the dust collection mechanism 1 to filter and purify the flue gas entering the dust collection mechanism 1, separating the particulate matter in the flue gas from the flue gas. A discharge hopper 4 is disposed at the bottom of the dust collection mechanism 1. The discharge hopper 4 is connected to the interior of the dust collection mechanism 1. The separated carbon powder falls under the action of gravity and is discharged from the interior of the dust collection mechanism 1 through the discharge hopper 4. The carbon powder is collected through a collection box connected to the discharge hopper 4.

[0053] Specifically, the dust removal mechanism 1 includes a filter box 11, which has an internal cavity and an opening on the front. Several air inlet pipes 12 are located on the top of the filter box 11 and communicate with its interior. Each air inlet pipe 12 is connected to the flue of a different secondary adsorption tower or different exhaust ports of the same flue, guiding flue gas into the filter box 11. Each air inlet pipe 12 is equipped with a first solenoid valve 13 to control the opening and closing of the air inlet pipe 12, thereby changing the amount of air entering the filter box 11.

[0054] The back of the filter box 11 has several air outlets 14, each connected to an exhaust pipe 15. The purified flue gas is discharged through the exhaust pipes 15. Each exhaust pipe 15 is equipped with a second solenoid valve 16 to control the opening and closing of the exhaust pipe 15, thereby changing the gas output. Each flue gas filter cartridge 3 is connected to each air outlet 14. During use, the first solenoid valve 13 and the second solenoid valve 16 can be controlled from an external controller to change the intake and exhaust volumes according to actual purification requirements.

[0055] like Figure 5 and Figure 9 As shown, in some embodiments, the sealing mechanism 2 of this utility model includes a sealing cover 21, which is used to seal the opening of the filter box 11. The sealing cover 21 can be connected to the filter box 11 by bolts or other fasteners, so that the sealing cover 21 can be removed from the opening of the filter box 11. The sealing cover 21 has filter cartridge insertion holes 22 that are adapted to the position and number of the air outlet holes 14. The flue gas filter cartridges 3 are inserted into the filter cartridge insertion holes 22 and extend into the air outlet holes 14, and the flue gas is purified by the flue gas filter cartridges 3. The flue gas filter cartridges 3 are independent of each other and modular to facilitate maintenance.

[0056] like Figure 10 As shown, in some embodiments, the flue gas filter cartridge 3 of this utility model includes a pleated filter element 31. The pleated filter element 31 is a pleated filter element to increase the contact area with flue gas and increase purification efficiency. One end of the pleated filter element 31 is provided with a rigid end, and the other end of the pleated filter element 31 is provided with a manual valve 32. The rigid end and the manual valve 32 cooperate to support the pleated filter element 31 in the middle, so that the pleated filter element 31 maintains its shape. The manual valve 32 is placed inside the filter cartridge insertion hole 22 and is supported. The external flue gas permeates from the inside of the filter box 11 into the inside of the pleated filter element 31 and is purified. Then, it is discharged from the outlet hole 14 through the channel inside the pleated filter element 31. At this time, the isolated carbon powder is blocked outside the pleated filter element 31 and falls to the bottom of the filter box 11 under the action of airflow and gravity and is discharged and collected through the discharge hopper 4.

[0057] like Figure 8 and Figure 9As shown, in some embodiments, each air outlet 14 of this invention is provided with a filter cylinder support sleeve 17 on the side facing the inside of the filter box 11, and each filter cylinder insertion hole 22 is provided with a threaded groove 23 on the side facing the filter box 11.

[0058] One end of the rigid end of the pleated filter element 31 extends into the interior of the filter cartridge support sleeve 17 and is supported there. The outer surface of the hand-operated valve 32 is provided with an external thread 33, which is threadedly connected to the threaded groove 23. When the pleated filter element 31 is inserted into the filter box 11 through the filter cartridge insertion hole 22, the pleated filter element 31 is threadedly connected to the threaded groove 23 through the external thread 33 on the outer surface of the hand-operated valve 32, thereby preventing the pleated filter element 31 from easily coming off and ensuring the stability of the pleated filter element 31.

[0059] like Figure 6 As shown, in some embodiments, the back of the filter box 11 of this invention is provided with a gas collection mechanism 5, which covers all exhaust pipes 15, so that the flue gas is discharged in a concentrated manner. Subsequent treatment equipment does not need to be connected to each exhaust pipe 15 individually, which improves the convenience of subsequent equipment installation and reduces the space occupied by the equipment.

[0060] like Figure 5 and Figure 6 As shown, in some embodiments, the gas collection mechanism 5 of this utility model includes a gas collection hood 51. The gas collection hood 51 is detachably connected to the back of the filter box 11 by means of bolts or other means, allowing for convenient maintenance of the exhaust pipe 15 and the second solenoid valve 16 after disassembling the gas collection hood 51. The gas collection hood 51 is provided with an external pipe 52. The flue gas emitted through the exhaust pipe 15 is concentrated inside the gas collection hood 51 and then discharged through the external pipe 52. If the flue gas requires further treatment, it can be guided to subsequent treatment equipment by connecting a pipe to the external pipe 52. A cable outlet groove 53 is provided at the connection between the gas collection hood 51 and the filter box 11 for leading out the control cable of the second solenoid valve 16 to connect to an external controller. To improve the sealing of the inside of the gas collection hood 51, a sealing element is provided at the position of the cable outlet groove 53 to seal the cable outlet groove 53 after the cable passes through it.

[0061] like Figure 10 and Figure 11As shown, in some embodiments, the filter box 11 of this invention is internally equipped with several ash-collecting mechanisms 6. When the flue gas to be purified enters the inlet pipe 12 through the flue, the airflow velocity increases because the internal cross-section of the inlet pipe 12 becomes smaller. The accelerated airflow blows towards the ash-collecting mechanisms 6, allowing the ash-collecting mechanisms 6 to rotate when air enters the inlet pipe 12. The rotating ash-collecting mechanisms 6 are used to tap the flue gas filter cartridge 3, thereby loosening and dislodging the carbon powder adhering to the outer surface of the flue gas filter cartridge 3. This prevents excessive carbon powder adhering to the outer surface of the flue gas filter cartridge 3, which could lead to blockage of the flue gas filter cartridge 3 and weaken its purification capacity.

[0062] like Figure 10 As shown, in some embodiments, the dust collection mechanism 6 of this utility model includes a flap support rod 61. The two ends of the flap support rod 61 are supported by the inner wall of the filter box 11 and the inside of the sealing cover 21, respectively, so that the flap support rod 61 is kept horizontal and the flap support rod 61 needs to be rotatable.

[0063] The outer surface of the flap support rod 61 is provided with a plurality of ash-collecting flaps 62 arranged in an equidistant circular array. When the airflow blows towards the ash-collecting flaps 62, the flaps 62 will drive the flap support rod 61 to rotate under the force of the airflow. At this time, the rotating ash-collecting flaps 62 contact the outer surface of the flue gas filter cartridge 3, thereby striking the flue gas filter cartridge 3 and causing it to vibrate. The inertial force of the vibration will loosen and fall off the carbon powder attached to the outer surface of the flue gas filter cartridge 3.

[0064] It is worth noting that the ash-collecting flap 62 of this invention is elastic, thus bending and passing through when it rotates and impacts the outer surface of the flue gas filter cylinder 3, avoiding motion interference. Furthermore, after passing through the flue gas filter cylinder 3, the ash-collecting flap 62 can return to its initial state under the action of elasticity, ready for the next impact. All the ash-collecting flaps 62 bend in the same direction into a fan-shaped form, thereby stably driving the flap support rod 61 to rotate under the force of the airflow.

[0065] like Figure 8 , Figure 9 and Figure 11 As shown, in some embodiments, a support rod connecting sleeve 18 is provided between four adjacent air outlets 14 inside the filter box 11 of this utility model, and a support rod stabilizing sleeve 24 adapted to the position of the support rod connecting sleeve 18 is provided on the side of the sealing cover 21 facing the filter box 11. The inner diameter of both the support rod connecting sleeve 18 and the support rod stabilizing sleeve 24 is adapted to the diameter of the flap support rod 61. The two ends of the flap support rod 61 are respectively inserted into the interior of the support rod connecting sleeve 18 and the support rod stabilizing sleeve 24. Through the above arrangement, a set of ash-collecting flaps 62 can simultaneously beat four adjacent flue gas filter cartridges 3, improving the compactness of the internal structure of the device, reducing the size of the equipment and the ash-collecting efficiency.

[0066] In summary, the activated carbon flue gas purification process deep dust removal device of this utility model is configured with multiple air inlet pipes 12 and exhaust pipes 15 connected to the interior of the filter box 11. At the same time, a first solenoid valve 13 is installed on the air inlet pipe 12 and a second solenoid valve 16 is installed on the exhaust pipe 15. An external controller controls all the first solenoid valves 13 and the second solenoid valves 16 respectively to change the air intake and exhaust volume inside the filter box 11, thereby achieving an adaptive adjustment effect according to emission compliance.

[0067] This utility model installs the flue gas filter cartridge 3 in a modular manner inside the filter box 11, and allows the sealing cover 21 to be separated from the opening of the filter box 11. During maintenance, the flue gas filter cartridge 3 can be disassembled and replaced separately. At the same time, the sealing cover 21 can be opened to clean the inside of the filter box 11, achieving the effect of convenient maintenance.

[0068] This invention provides a flap support rod 61 inside the filter box 11, and ash-collecting flaps 62 arranged in a circular array on the outer surface of the flap support rod 61. When flue gas enters the filter box 11 from the inlet pipe 12, the airflow blows the ash-collecting flaps 62, causing them to rotate and beat the outer surface of the pleated filter element 31, causing the carbon powder attached to the outer surface of the pleated filter element 31 to fall off. This achieves the effect of improving carbon powder recovery efficiency and preventing the pleated filter element 31 from clogging.

[0069] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0070] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A deep dust removal device for activated carbon flue gas purification process, characterized in that, It includes multiple sets of exhaust fans (8), and the output end of each set of exhaust fans (8) is connected to a flue gas heat exchanger (9). The output end of the flue gas heat exchanger (9) is sequentially connected to a first adsorption tower (10) and a second adsorption tower (101). A filter cartridge dust collector (7) is installed at the smoke outlet of the second adsorption tower (101). The cartridge dust collector (7) includes a dust removal mechanism (1) and a sealing mechanism (2). The sealing mechanism (2) is detachably disposed on the front of the dust removal mechanism (1). Several flue gas filter cartridges (3) are inserted into the interior of the dust removal mechanism (1). A discharge hopper (4) is disposed at the bottom of the dust removal mechanism (1). The discharge hopper (4) is connected to the interior of the dust removal mechanism (1). The dust removal mechanism (1) includes a filter box (11), and the top of the filter box (11) is provided with several air inlet pipes (12) that communicate with the interior of the filter box (11). Each air inlet pipe (12) is equipped with a first solenoid valve (13). The filter box (11) has several air outlets (14) on its back side. Each air outlet (14) is connected to an exhaust pipe (15). Each exhaust pipe (15) is equipped with a second solenoid valve (16). Each flue gas filter cylinder (3) is connected to each air outlet (14).

2. The deep dust removal device for activated carbon flue gas purification process according to claim 1, characterized in that: The sealing mechanism (2) includes a sealing cover (21), on which a filter cartridge insertion hole (22) is provided that matches the position and number of the air outlet (14). The flue gas filter cartridge (3) is inserted into the filter cartridge insertion hole (22) and extends into the air outlet (14).

3. The deep dust removal device for activated carbon flue gas purification process according to claim 2, characterized in that: The flue gas filter cartridge (3) includes a pleated filter element (31), one end of which is provided with a rigid end, and the other end of which is provided with a manual valve (32), which is placed inside the filter cartridge insertion hole (22) and supported.

4. The deep dust removal device for activated carbon flue gas purification process according to claim 3, characterized in that: Each of the air outlets (14) is provided with a filter cylinder support sleeve (17) on the side facing the inside of the filter box (11), and each of the filter cylinder insertion holes (22) is provided with a threaded groove (23) on the side facing the filter box (11). One end of the rigid end of the pleated filter element (31) extends into the interior of the filter cylinder support sleeve (17) and is supported. The outer surface of the manual valve (32) is provided with an external thread (33), which is threadedly connected to the thread groove (23).

5. The deep dust removal device for activated carbon flue gas purification process according to claim 1, characterized in that: The filter box (11) is provided with a gas collection mechanism (5) on the back, which covers all exhaust pipes (15) to concentrate the exhaust gas.

6. The deep dust removal device for activated carbon flue gas purification process according to claim 5, characterized in that: The gas collection mechanism (5) includes a gas collection hood (51), which is detachably connected to the back of the filter box (11). The gas collection hood (51) is provided with an external pipe (52), and a cable outlet groove (53) is provided at the connection between the gas collection hood (51) and the filter box (11).

7. The deep dust removal device for activated carbon flue gas purification process according to claim 2, characterized in that: The filter box (11) is equipped with several ash-collecting mechanisms (6). The ash-collecting mechanisms (6) can rotate when air is introduced through the air inlet pipe (12). The rotating ash-collecting mechanisms (6) are used to beat the flue gas filter cylinder (3).

8. The deep dust removal device for activated carbon flue gas purification process according to claim 7, characterized in that: The dust collection mechanism (6) includes a flap support rod (61), the two ends of which are supported by the inner wall of the filter box (11) and the inside of the sealing cover (21), respectively. The outer surface of the flap support rod (61) is provided with a plurality of ash-collecting flaps (62) arranged in an equidistant circular array, and the ash-collecting flaps (62) can contact the outer surface of the flue gas filter cylinder (3).

9. The deep dust removal device for activated carbon flue gas purification process according to claim 8, characterized in that: The dust-collecting flaps (62) are elastic, and all the dust-collecting flaps (62) bend in the same direction to form a fan shape.

10. The deep dust removal device for activated carbon flue gas purification process according to claim 9, characterized in that: Inside the filter box (11), there is a support rod connecting sleeve (18) between four adjacent air outlets (14). On the side of the sealing cover (21) facing the filter box (11), there is a support rod stabilizing sleeve (24) that is adapted to the position of the support rod connecting sleeve (18). The inner diameter of the support rod connecting sleeve (18) and the support rod stabilizing sleeve (24) are adapted to the diameter of the flap support rod (61). The two ends of the flap support rod (61) are respectively inserted into the inside of the support rod connecting sleeve (18) and the support rod stabilizing sleeve (24).

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