Flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption

Abstract

The invention discloses a flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption, and belongs to the technical field of flue gas purification. According to the flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption, a mounting plate body with a circular groove body is arranged in a flue gas purification box, and an activated carbon adsorption ring capable of rotating at a low speed is mounted in the groove body; the interior of the activated carbon adsorption ring is circumferentially divided into an adsorption area, a heating area and a cooling area which are not communicated with one another; an air inlet end cover and an air outlet end cover are symmetrically arranged above the two ends of the adsorption ring, the interiors of the two covers are divided into a heating cavity and a cooling cavity through longitudinal partition plates respectively, and the two covers are correspondingly communicated with a heat / cold inlet pipe and a heat / cold outlet pipe. The problem that an existing activated carbon fiber adsorption device is interrupted in operation due to the fact that regeneration needs to be stopped for replacement is solved. Adsorption, regeneration and cooling are synchronously operated through rotary partition design, and the system does not need to be shut down.

Description

Technical Field

[0001] This invention relates to the field of flue gas purification technology, specifically to a flue gas desulfurization and denitrification purification device that utilizes activated carbon fiber adsorption. Background Technology

[0002] Currently, activated carbon fiber adsorption technology is widely used in the field of industrial flue gas purification for desulfurization and denitrification. The core problem is that the regeneration process after adsorption saturation has a serious efficiency bottleneck. When the activated carbon fiber is close to saturation, traditional fixed bed or moving bed devices need to interrupt the purification process for overall replacement or in-situ regeneration. Frequent shutdowns to replace adsorption materials cause the system to be unable to operate continuously, which will cause significant downtime losses, especially for industries such as power and steel that require continuous production around the clock.

[0003] CN106823785A discloses an industrial flue gas desulfurization and denitrification device and method based on activated carbon fiber. The device includes a reaction tower body, within which, from bottom to top, are arranged a sulfuric acid collection device, an inlet zone one, a grid one, a desulfurization zone, an inlet zone two, a grid two, a denitrification zone, and an outlet zone. The sidewalls of the reaction tower body also have an inlet pipe one and an inlet pipe two, and the top has an outlet. The desulfurization / denitrification zone is an activated carbon fiber desulfurization / denitrification catalyst reaction bed. This method utilizes the above device, with flue gas passing through the various zones of the reaction tower body in a bottom-in, top-out manner, causing sulfur dioxide and nitrogen oxides in the flue gas to be converted into sulfuric acid and nitrogen / water, respectively. The desulfurization and denitrification device provided by this invention has a simple structure, is easy to operate, occupies a small area, and is low in cost. However, its static sealing structure leads to inconvenience in replacement, restricting the application and promotion of activated carbon fiber adsorption. Summary of the Invention

[0004] The purpose of this invention is to provide a flue gas desulfurization and denitrification purification device that utilizes activated carbon fiber adsorption, which realizes continuous and synchronous operation of adsorption, regeneration and cooling, solves the problem that traditional fixed bed devices require shutdown for regeneration, significantly improves flue gas treatment efficiency and ensures long-term system operation, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption includes a flue gas purification box, an inlet flue pipe and an outlet flue pipe connecting the two ends of the flue gas purification box. A mounting plate is vertically installed inside the flue gas purification box, and the mounting plate is sealed to the inner wall of the flue gas purification box. A circular groove is formed on the mounting plate, and an activated carbon adsorption ring capable of rotating at low speed around its axis is installed inside the groove. The activated carbon adsorption ring is coaxially distributed with the inlet and outlet flue pipes. The interior of the activated carbon adsorption ring is circumferentially divided into non-communicating adsorption zones, heating zones, and cooling zones. An inlet end cover and an outlet end cover are symmetrically arranged diagonally above both ends of the activated carbon adsorption ring. The interiors of the inlet and outlet end covers are respectively divided into a heating chamber and a cooling chamber by longitudinal partitions. The heating chamber of the inlet end cover is connected to a heat inlet pipe, and the cooling chamber is connected to a cold inlet pipe. The heating chamber of the outlet end cover is connected to a heat outlet pipe, and the cooling chamber is connected to a cold outlet pipe.

[0007] Preferably, a toothed ring is arranged around the circumference of the activated carbon adsorption ring. The toothed ring is connected to a gear through a transmission belt. The gear is located above the flue gas purification box. One side of the gear is coaxially connected to the output end of the drive motor. The drive motor is fixed to the top surface of the flue gas purification box through a mounting bracket. A groove is opened in the flue gas purification box and the mounting plate for the transmission belt to pass through.

[0008] Preferably, the longitudinal section of the filter channel is hexagonal, and its through-line has a slight curvature.

[0009] Preferably, the contact surfaces of the air inlet end cover and the air outlet end cover are provided with connecting grooves, and pressure springs are provided in the connecting grooves at equal intervals. One end of the pressure spring is connected to the bottom of the connecting groove, and the other end is connected to a radial sealing strip. The radial sealing strip is provided with a double-edged edge on the side near the activated carbon adsorption ring, and the double-edged edge is in close contact with the end face of the activated carbon adsorption ring.

[0010] Preferably, the top of the air inlet cover is provided with a first mounting plate with screw holes, which is fixed to the top surface of the flue gas purification box by bolts, and the side of the air inlet cover is provided with a second mounting plate with screw holes, which is fixed to the side wall of the mounting plate by bolts.

[0011] Preferably, the heat outlet pipe is connected to the cooling box, the cold outlet pipe is connected to the cooling box through a cold outlet branch pipe, a check valve is installed on the cold outlet branch pipe, the air outlet of the heat inlet pipe is directly opposite to the activated carbon adsorption ring, and the hot air flow direction is opposite to the flue gas flow direction.

[0012] Preferably, the bottom of the cooling box is connected to a guide pipe, and a collection box is provided below the guide pipe, with the axis of the guide pipe perpendicular to the outlet direction of the heat outlet pipe.

[0013] Preferably, the end face of the activated carbon adsorption ring is precision machined to form a smooth and clean contact surface.

[0014] Preferably, the heating zone and the cooling zone each occupy 1 / 7 of the internal space.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention divides the interior of the activated carbon adsorption ring into non-interconnected adsorption, heating, and cooling zones along the circumference. The drive motor rotates the ring at low speed via a toothed ring and a transmission toothed belt, allowing the saturated zone to sequentially enter the heating, regeneration, and cooling stages. This achieves continuous and synchronous operation of adsorption, regeneration, and cooling, solving the problem of traditional fixed-bed devices requiring shutdown for regeneration. It significantly improves flue gas treatment efficiency and ensures long-term system operation.

[0017] 2. This invention utilizes a porous support structure with hexagonal longitudinal sections forming through-filtration channels. The inner walls of these channels are covered with activated carbon fiber felt, and the channel lines are designed with slight curvature. The hexagonal channels provide an ultra-high geometrical surface area, increasing the number of active sites; the slight curvature increases the probability of collisions between flue gas molecules and the inner walls of the channels, thereby reducing gas resistance while enhancing the adsorption efficiency of SO2 and NOx.

[0018] 3. This invention incorporates connecting grooves on the contact surfaces of the inlet and outlet end caps, with an internal pressure spring pushing a radial sealing strip tightly against the end face of the activated carbon adsorption ring. The radial sealing strip is made of polytetrafluoroethylene (PTFE) or high-temperature resistant fluororubber, and its double-edged end design, combined with the precision-machined end face of the activated carbon ring, forms a double-sealing interface during rotation. This structure effectively blocks gas crosstalk between the three regions, preventing the mixing of regenerated high-temperature gas into the purified flue gas and ensuring stable desulfurization and denitrification rates. Attached Figure Description

[0019] Figure 1 This is a first isometric view of the overall structure of the present invention;

[0020] Figure 2 This is a second isometric view of the overall structure of the present invention;

[0021] Figure 3 This is a third axonometric view of the overall structure of the present invention;

[0022] Figure 4 This is a side sectional view of the overall structure of the present invention;

[0023] Figure 5 This is a first isometric view of the activated carbon adsorption ring of the present invention;

[0024] Figure 6 This is a second isometric view of the activated carbon adsorption ring of the present invention;

[0025] Figure 7 This is a partition diagram of the activated carbon adsorption ring of the present invention;

[0026] Figure 8 This is a cross-sectional view of the side portion of the activated carbon adsorption ring of the present invention;

[0027] Figure 9 This is a schematic diagram of the cross-section of the filter channel of the present invention;

[0028] Figure 10 This is an isometric view of the air outlet cover of the present invention;

[0029] Figure 11 This is an isometric view of the air intake cover of the present invention;

[0030] Figure 12 This is a diagram showing the connection of the radial sealing strip of the present invention.

[0031] In the diagram: 1. Flue gas purification box; 2. Inlet flue; 3. Outlet flue; 4. Activated carbon adsorption ring; 5. Activated carbon fiber felt layer; 6. Filter channel; 7. Porous foundation support; 8. Adsorption zone; 9. Heating zone; 10. Ammonia delivery pipe; 11. Fine nozzle; 12. Rotating shaft; 13. Bracket; 14. Gear ring; 15. Transmission gear belt; 16. Gear; 17. Drive motor; 18. Sealing cover; 19. Longitudinal partition; 20. First mounting plate; 1. Second mounting plate; 22. Mounting plate body; 23. Connecting groove; 24. Compression spring; 25. Radial sealing strip; 26. Double-edged blade; 27. Exhaust end cover; 28. Exhaust branch pipe; 29. ​​Gas heater; 30. Fan; 31. Heat inlet pipe; 32. Heat outlet pipe; 33. Cooling box; 34. Cold inlet pipe; 35. Cold outlet pipe; 36. Cold outlet branch pipe; 37. Check valve; 38. Guide pipe; 39. Collection box; 40. Cooling zone; 41. Inlet end cover. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] To address the issue that existing technologies cannot achieve continuous adsorption using activated carbon fibers, please refer to [link to relevant documentation]. Figure 1-12 This embodiment provides the following technical solution:

[0034] A flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption includes a flue gas purification box 1. The two ends of the flue gas purification box 1 are respectively connected to an inlet flue pipe 2 and an outlet flue pipe 3. A mounting plate 22 is vertically installed inside the flue gas purification box 1 and is sealed to the inner wall of the flue gas purification box 1. A circular groove for mounting an activated carbon adsorption ring 4 is opened on the mounting plate 22. The activated carbon adsorption ring 4 can rotate at a low speed around its axis inside the mounting plate 22. The activated carbon adsorption ring 4, the inlet flue pipe 2, and the outlet flue pipe 3 are coaxially distributed.

[0035] The activated carbon adsorption ring 4 has a flat cylindrical structure and consists of a porous base support 7 and an activated carbon fiber felt layer 5. The porous base support 7 is made of glass fiber, ceramic fiber, or metal fiber, which provides mechanical strength and structural stability, forming a honeycomb skeleton. The porous base support 7 contains numerous filter channels 6, which extend from one side of the porous base support 7 to the other without interruption, facilitating the passage of flue gas. The two ends of the filter channels 6 are positioned correspondingly on both sides of the porous base support 7. The longitudinal section of the filter channels 6 is hexagonal, and the resulting honeycomb structure provides an extremely high geometric surface area, offering a vast number of adsorption and reaction sites for pollutant molecules. The through-line of the filter channels 6 has a slight arc, facilitating collisions between the flue gas and its inner wall to enhance adsorption force without significantly increasing air resistance. The inner wall of the filter channels 6 is covered with an activated carbon fiber felt layer 5 by coating, impregnation, or weaving. The activated carbon fiber felt layer 5 is used to adsorb and catalyze NOx and SO2 in the flue gas.

[0036] The internal space of the activated carbon adsorption ring 4 is divided into three functional areas, namely the adsorption zone 8, the heating zone 9 and the cooling zone 40. The adsorption zone 8, the heating zone 9 and the cooling zone 40 are isolated to prevent cross-contamination of gas. The heating zone 9 and the cooling zone 40 each occupy 1 / 7 of the internal space.

[0037] As the activated carbon adsorption ring 4 rotates slowly, the flue gas to be purified passes through the filter channels 6 of the adsorption zone 8. At this time, NOx and SO2 are adsorbed by the activated carbon fiber felt layer 5, and some O2 and H2O are also adsorbed into the activated carbon fiber felt layer 5. Under the catalytic action of the activated carbon surface, SO2, O2 and H2O react to generate H2SO4. The generated dilute sulfuric acid will be temporarily stored in the pores of the activated carbon. The purified flue gas is discharged through the exhaust pipe 3, thus completing the desulfurization.

[0038] An ammonia delivery pipe 10 is installed at the front end of the flue gas purification box 1. Several small nozzles 11 are installed on the side of the ammonia delivery pipe 10 facing the activated carbon adsorption ring 4. The ammonia is delivered into the flue gas purification box 1 by the delivery equipment. NH3, as a reducing agent, enters the activated carbon adsorption ring 4 along with the flue gas. Under the catalysis of the activated carbon fiber felt layer 5, NOx reacts with NH3 and O2 to generate harmless N2 and H2O, thereby completing the denitrification.

[0039] When the activated carbon fiber felt layer 5 in the adsorption zone 8 is close to saturation, it enters the heating zone 9 under the rotation of the activated carbon adsorption ring 4. It is regenerated by heating with hot air at 300℃-400℃. The hot air passes through the heating zone 9 in the opposite direction. The heat provides energy to break the adsorption bonds between the surface of the activated carbon fiber felt layer 5 and the pollutant molecules, and desorb the adsorbed pollutants. After heating, the H2SO4 in the pores of the activated carbon is concentrated and released, resulting in a high concentration of SO2 gas, which is then recovered. At high temperatures, the activated carbon itself is consumed in small amounts as a reducing agent.

[0040] The activated carbon fiber felt layer 5, after being heated and regenerated, will cause a sharp drop in SO2 gas adsorption efficiency. Therefore, cold air at a temperature below 110°C is used to cool the activated carbon fiber felt layer 5 after high-temperature regeneration to near the flue gas temperature, so that it can maintain high adsorption capacity when it returns to the adsorption zone 8. This avoids the high-temperature flue gas from directly contacting the hot activated carbon fiber felt layer 5 and reducing the adsorption efficiency, thereby achieving continuous operation.

[0041] To enable the activated carbon adsorption ring 4 to rotate, a bearing is installed at its center and a rotating shaft 12 passes through it. Both ends of the rotating shaft 12 are installed in the flue gas purification box 1 via brackets 13. A toothed ring 14 is arranged around the circumference of the activated carbon adsorption ring 4. The toothed ring 14 is connected to a gear 16 via a transmission belt 15. The gear 16 is located above the flue gas purification box 1, and one side of the gear 16 is coaxially connected to the output end of the drive motor 17. The drive motor 17 is fixed to the top surface of the flue gas purification box 1 via a mounting bracket. The flue gas purification box 1 and the mounting plate 22 have grooves for the transmission belt 15 to pass through. Through the above structure, the drive motor 17 drives the activated carbon adsorption ring 4 to rotate slowly and at a uniform speed.

[0042] To achieve the partitioning of the adsorption zone 8, heating zone 9, and cooling zone 40, a sealing cover 18 is provided diagonally above each of the two ends of the activated carbon adsorption ring 4. The two sealing covers 18 are the same size and symmetrically positioned. The sealing cover 18 has a structure that is wider at the top and narrower at the bottom. The side that contacts the activated carbon adsorption ring 4 is open. A longitudinal partition 19 is provided in the center of the interior of the sealing cover 18. The longitudinal partition 19 completely separates the inner cavity of the sealing cover 18. One side of the longitudinal partition 19 forms the heating zone 9, and the other side forms the cooling zone 40. A first mounting plate 20 with screw holes is provided on the top of the sealing cover 18 for bolting to the inner top surface of the flue gas purification box 1. A second mounting plate 21 with screw holes is provided on the side edge of the sealing cover 18 facing the mounting plate body 22 for bolting to the side wall of the mounting plate body 22.

[0043] To achieve a complete seal between the sealing cover 18, the mounting plate 22, and the activated carbon adsorption ring 4, a connecting groove 23 is provided along the contact surface of the sealing cover 18 and the longitudinal partition 19. A radial sealing strip 25 is engaged within the connecting groove 23. The radial sealing strip 25 is made of a soft, elastic sealing material. Considering the requirements for high temperature resistance, corrosion resistance, and friction resistance, the radial sealing strip 25 is made of polytetrafluoroethylene or high-temperature resistant fluororubber. A double-edged edge 26 is provided on the side of the radial sealing strip 25 closest to the activated carbon adsorption ring 4, and a double-edged edge 26 is provided on the side of the radial sealing strip 25 furthest from the double-edged edge 26. One side of 6 is connected to the bottom of the groove 23 by several pressure springs 24 arranged at equal intervals. Under the action of the pressure springs 24, the double-edged edge 26 is always tightly pressed against the end face of the activated carbon adsorption ring 4 and maintains tight contact as it rotates. The double-edged design can further reduce the risk of gas leakage and avoid cross-contamination between different areas, which would affect the flue gas purification rate. At the same time, the end face of the activated carbon adsorption ring 4 must be precision machined to ensure extremely high flatness and smoothness, so as to ensure uniform contact with the radial sealing strip 25 and reduce leakage.

[0044] The sealing cover 18 is divided into an air inlet cover 41 and an air outlet cover 27. The air inlet cover 41 is located at the adsorption rear end of the activated carbon adsorption ring 4, and the air outlet cover 27 is located at the adsorption front end of the activated carbon adsorption ring 4.

[0045] To achieve desorption of high-temperature gas in heating zone 9, an outlet branch pipe 28 is installed on the outlet flue pipe 3. The outlet branch pipe 28 is connected to the gas heater 29 at the top of the flue gas purification box 1. A fan 30 is connected to one side of the gas heater 29. The fan 30 is connected to the heating zone 9 of the inlet end cover 41 through the heat inlet pipe 31. The outlet of the heat inlet pipe 31 is directly facing the activated carbon adsorption ring 4. The top of the heating zone 9 of the outlet end cover 27 is connected to the outlet pipe 32, which is connected to the cooling box 33 to cool the heated gas, facilitating the subsequent recovery and treatment of SO2 gas. The gas heater 29 is a mature existing technology and will not be described in detail here.

[0046] In order to achieve the cooling effect of the low-temperature gas in the cooling zone 40, a cooling inlet pipe 34 is provided to connect the cooling zone 40 of the air inlet end cover 41. After the low-temperature gas carries away the heat by passing through the activated carbon adsorption ring 4, it is discharged through the cooling outlet pipe 35 provided at the top of the air outlet end cover 27.

[0047] A cooling outlet branch pipe 36 is installed between the cooling outlet pipe 35 and the cooling box 33. A portion of the cold air enters the cooling box 33 from the cooling outlet branch pipe 36 to merge with the heated gas and cool it down, preventing the overheated gas from damaging the subsequent recovery equipment. A check valve 37 is installed on the cooling outlet branch pipe 36. During the initial heating, due to incomplete heating, the dilute sulfuric acid in the activated carbon fiber felt layer 5 is still in a liquid state and is carried away by the gas. Therefore, a guide pipe 38 is connected below the heat outlet pipe 32 at the post-processing end of the cooling box 33. A collection box 39 is connected below the guide pipe 38 to collect the unevaporated or condensed liquid sulfuric acid. The axis of the guide pipe 38 is perpendicular to the outlet direction of the heat outlet pipe 32.

[0048] Working principle: The flue gas to be purified enters the flue gas purification chamber 1 through the inlet pipe 2, and is guided to the adsorption zone 8 of the activated carbon adsorption ring 4 by the mounting plate 22. The activated carbon adsorption ring 4 is composed of a porous base support 7 and an activated carbon fiber felt layer 5. The through-line design of its filter channels 6 has a slight arc, forcing the flue gas to collide with the inner wall. SO2 in the flue gas reacts with O2 and H2O under the catalysis of the activated carbon fiber felt layer 5 to generate H2SO4, which is temporarily stored in the pores; at the same time, NH3 sprayed from the ammonia delivery pipe 10 reacts with NOx on the surface of the activated carbon to generate N2 and H2O, completing the desulfurization and denitrification. The purified flue gas is discharged through the outlet pipe 3.

[0049] When the activated carbon fiber felt layer 5 in adsorption zone 8 approaches saturation, the drive motor 17 drives the activated carbon adsorption ring 4 to rotate at low speed via gear 16, transmission belt 15, and gear ring 14, causing the saturated area to transition into the heating zone 9. The fan 30 introduces hot air (300–400°C) generated by the gas heater 29 into the heating zone 9 of the inlet shroud 41 via the heat inlet pipe 31, penetrating the activated carbon layer in the reverse direction. The high temperature breaks the adsorption bonds of pollutants, and the desorbed concentrated SO2 gas is introduced from the outlet shroud 27 through the outlet pipe 32 into the cooling box 33; liquid H2SO4 flows into the collection box 39 via the guide pipe 38. The regenerated high-temperature activated carbon then enters the cooling zone 40, where cold air below 110°C penetrates the activated carbon layer through the cooling inlet pipe 34 to cool it down, and the heat-absorbing gas is discharged from the cooling outlet pipe 35.

[0050] The adsorption zone 8, heating zone 9, and cooling zone 40 are physically isolated by symmetrically arranged inlet end caps 41 and outlet end caps 27. A longitudinal partition 19 within the sealing cover 18 completely separates the heating and cooling chambers. A radial sealing strip 25, pressed against the end face of the activated carbon adsorption ring 4 by a pressure spring 24, has a double-edged design 26 that maintains airtightness during rotation, preventing cross-contamination. A cooling branch pipe 36 in the hot air system introduces some cold air into the cooling box 33, mixing with the high-temperature gas from the heat outlet pipe 32 for cooling; a check valve 37 prevents gas backflow; after the low-temperature gas in the cooling zone 40 lowers the activated carbon temperature to near the flue gas temperature, the activated carbon adsorption ring 4 rotates back to the adsorption zone 8, restoring its high-efficiency adsorption capacity.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption, comprising a flue gas purification box (1), characterized in that, The flue gas purification box (1) is connected to the inlet flue pipe (2) and the outlet flue pipe (3) at both ends. A mounting plate (22) is vertically installed inside the flue gas purification box (1). The mounting plate (22) is sealed to the inner wall of the flue gas purification box (1). A circular groove is opened on its surface. An activated carbon adsorption ring (4) is installed in the circular groove. The activated carbon adsorption ring (4) includes a porous base support (7) and an activated carbon fiber felt layer (5). The porous base support (7) is provided with filter channels (6) that pass through both ends. The inner wall of the filter channels (6) is covered with the activated carbon fiber felt layer (5). The center of the activated carbon adsorption ring (4) is through a rotating shaft (12). The two ends of the rotating shaft (12) are connected by supports. The frame (13) is fixed to the inner wall of the flue gas purification box (1); the interior of the activated carbon adsorption ring (4) is divided into an adsorption zone (8), a heating zone (9) and a cooling zone (40) that are not connected to each other along the circumference; the inlet end cover (41) and the outlet end cover (27) are symmetrically arranged at the upper sides of the two ends of the activated carbon adsorption ring (4), and the interior of the inlet end cover (41) and the outlet end cover (27) are respectively divided into a heating chamber and a cooling chamber by a longitudinal partition (19); the heating chamber of the inlet end cover (41) is connected to the heat inlet pipe (31), and the cooling chamber is connected to the cold inlet pipe (34); the heating chamber of the outlet end cover (27) is connected to the heat outlet pipe (32), and the cooling chamber is connected to the cold outlet pipe (35).

2. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, A toothed ring (14) is arranged around the circumference of the activated carbon adsorption ring (4). The toothed ring (14) is connected to the gear (16) through the transmission toothed belt (15). The gear (16) is located above the flue gas purification box (1). One side of the gear (16) is coaxially connected to the output end of the drive motor (17). The drive motor (17) is fixed on the top surface of the flue gas purification box (1) through the mounting bracket. The flue gas purification box (1) and the mounting plate (22) are provided with grooves for the transmission toothed belt (15) to pass through.

3. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, The filter channel (6) has a hexagonal longitudinal section with a slight arc along its through-line.

4. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, The inlet end cover (41) and outlet end cover (27) have a connecting groove (23) on their contact surfaces. The connecting groove (23) is provided with equidistantly distributed pressure springs (24). One end of the pressure spring (24) is connected to the bottom of the connecting groove (23), and the other end is connected to a radial sealing strip (25). The radial sealing strip (25) has a double-edged edge (26) on the side close to the activated carbon adsorption ring (4). The double-edged edge (26) is in close contact with the end face of the activated carbon adsorption ring (4).

5. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, The top of the air inlet end cover (41) is provided with a first mounting plate (20) with screw holes, which is fixed to the top surface of the flue gas purification box (1) by bolts. The side of the air inlet end cover (41) is provided with a second mounting plate (21) with screw holes, which is fixed to the side wall of the mounting plate body (22) by bolts.

6. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, The heat outlet pipe (32) is connected to the cooling box (33), and the cold outlet pipe (35) is connected to the cooling box (33) through the cold outlet branch pipe (36). A check valve (37) is installed on the cold outlet branch pipe (36). The air outlet of the heat inlet pipe (31) is directly opposite to the activated carbon adsorption ring (4), and the hot air flow direction is opposite to the flue gas flow direction.

7. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 6, characterized in that, The bottom of the cooling box (33) is connected to the guide pipe (38), and a collection box (39) is set below the guide pipe (38). The axis of the guide pipe (38) is perpendicular to the outlet direction of the heat outlet pipe (32).

8. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, The end face of the activated carbon adsorption ring (4) is precision machined to form a smooth and clean contact surface.

9. The flue gas desulfurization and denitrification purification device utilizing activated carbon fiber adsorption according to claim 1, characterized in that, The heating zone (9) and cooling zone (40) each occupy 1 / 7 of the internal space.

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