A high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device

Abstract

The application discloses a kind of high-efficiency dry deacidification dedusting catalytic synergistic multi-pollutant treatment devices, belong to industrial flue gas pollutant treatment technical field, including reaction tower, the outside top of reaction tower is communicated with flue gas outlet pipe, and monitoring assembly is equipped in the inside of flue gas outlet pipe, one end of flue gas outlet pipe is communicated with flue gas treatment pipe, and reaction assembly is equipped in the inside of flue gas treatment pipe;The other end of flue gas treatment pipe is communicated with flue gas conveying pipe, and the one end of flue gas conveying pipe close to flue gas treatment pipe is equipped with spray head, and multiple spray guns are arranged around the periphery of spray head, reaction assembly specifically includes: two annular support plates movably connected in parallel in the inside of flue gas treatment pipe, straight pipe is fixedly connected between the two annular support plates, first annular plate is embedded on the inner wall of one annular support plate close to flue gas conveying pipe.The application, by optimizing structure design, realizes the sufficient contact of flue gas and treatment assembly, and improves multi-pollutant synergistic treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of industrial flue gas pollutant treatment technology, specifically a high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device. Background Technology

[0002] Industrial production processes generate flue gas containing various acidic pollutants such as sulfur dioxide, hydrogen sulfide, and hydrogen fluoride. Direct emission of such flue gas would cause serious air pollution. Therefore, it is necessary to carry out synergistic treatment of multiple pollutants, such as acid removal, dust removal, and catalytic decomposition.

[0003] Existing patent 202123202734.2 discloses a high-efficiency dry acid removal system for flue gas purification, specifically relating to a high-efficiency dry acid removal system for flue gas purification. This high-efficiency dry acid removal system for flue gas purification includes: a reaction tower; and a spray gun disposed at the inlet of the reaction tower to spray an acid removal agent onto the exhaust gas entering the tower.

[0004] Existing flue gas treatment devices often suffer from poor synergistic treatment effects, with insufficient contact and short contact time between the flue gas and the treatment components, resulting in low efficiency in acid removal and catalytic reactions. Therefore, those skilled in the art have provided a highly efficient dry acid removal, dust removal, and catalytic synergistic multi-pollutant treatment device to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device. Through optimized structural design, it achieves full contact between flue gas and treatment components, improves the efficiency of multi-pollutant synergistic treatment, and enables the secondary utilization of deacidification dry powder, reducing raw material consumption. The device also features real-time monitoring, efficient heat dissipation, and structural stability, meeting the actual needs of industrial flue gas treatment and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device includes a reaction tower, the top of the outer side of the reaction tower is connected to a flue gas outlet pipe, and a monitoring component is installed inside the flue gas outlet pipe. One end of the flue gas outlet pipe is connected to a flue gas treatment pipe, and a reaction component is installed inside the flue gas treatment pipe. The other end of the flue gas treatment pipe is connected to a flue gas conveying pipe, and a spray head is provided at one end of the flue gas conveying pipe near the flue gas treatment pipe. Multiple spray guns are arranged around the spray head.

[0007] As a further aspect of the present invention: the reaction assembly specifically includes: two annular support plates movably connected in parallel inside the flue gas treatment pipe, a straight pipe fixedly connected between the two annular support plates, a first annular plate embedded on the inner wall of one annular support plate near the flue gas delivery pipe, a second annular plate on one side of the other annular support plate near the flue gas outlet pipe, and a tapered pipe fixedly connected between the second annular plate and the corresponding annular support plate, at least four evenly distributed shafts fixedly connected between the first annular plate and the second annular plate, and a plurality of mutually staggered blades sleeved and fixed on the outside of the shafts, a limiting member between the annular support plate and the inner wall of the flue gas treatment pipe, and a driving mechanism on one side of the first annular plate for driving the annular support plate and the straight pipe to rotate synchronously.

[0008] As a further embodiment of the present invention: the driving mechanism specifically includes: four motor support plates uniformly fixed on the inner wall of the flue gas treatment pipe, a gear ring is provided on the inner wall of the annular support plate on one side of the motor support plate, and a drive motor is fixedly connected to the side of the motor support plate facing the gear ring, and a transmission gear is fixedly connected to the output shaft of the drive motor, and the transmission gear extends into the annular support plate and meshes with the gear ring thereon.

[0009] As a further embodiment of the present invention: the limiting component specifically includes: an annular limiting groove formed on the outer side of the annular support plate, an annular limiting track fixedly connected to the inner wall of the flue gas treatment pipe at the position corresponding to the annular limiting groove, and the annular limiting track and the annular limiting groove being movably connected.

[0010] As a further embodiment of the present invention: a gap sleeve groove is formed between the straight pipe and the inner wall of the flue gas treatment pipe, and a cold air inlet communicating with the gap sleeve groove is provided on one side of the outer surface of the flue gas treatment pipe, and a cold air outlet communicating with the gap sleeve groove is provided on the other side of the outer surface of the flue gas treatment pipe.

[0011] As a further aspect of the present invention: a plurality of uniformly distributed strip plates are fixedly connected to the inner wall of the straight tube.

[0012] As a further embodiment of the present invention: the monitoring component includes a sulfur dioxide sensor, a hydrogen sulfide sensor, a hydrogen fluoride sensor and a humidity sensor arranged sequentially in the flue gas outlet pipe.

[0013] As a further embodiment of the present invention: the other end of the flue gas conveying pipe is connected to an induced draft fan, and the other end of the induced draft fan is connected to a filter bag of a baghouse dust collector.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a spray head in conjunction with a surrounding spray gun. The spray gun sprays dry lime powder to pretreat flue gas using a dry deacidification process. Simultaneously, the reaction components inside the flue gas treatment pipe employ a rotatable structure, with the blades on the shaft staggered to increase the contact area and contact time between the flue gas and the reaction components. This achieves synergistic treatment of dry deacidification, dust removal, and catalysis, effectively improving the efficiency of flue gas treatment.

[0015] The device is equipped with a complete monitoring system that can monitor the levels of sulfur dioxide, hydrogen sulfide, and hydrogen fluoride in the treated flue gas, as well as the humidity, in real time. This allows staff to dynamically adjust the treatment process and ensure that flue gas emissions meet standards.

[0016] A gap sleeve groove is set between the straight pipe and the flue gas treatment pipe, and cold air circulation is achieved in conjunction with the cold air inlet and cold air outlet. This can quickly remove the heat generated during the reaction process, prevent the components from aging due to high temperature, and extend the service life of the device.

[0017] The reaction assembly is driven to rotate by a drive mechanism. The annular limiting groove of the limiting component cooperates with the annular limiting track to ensure the stability of the reaction assembly during rotation. At the same time, the gear meshing transmission method has high transmission efficiency and stable operation, and is suitable for the harsh working conditions of industrial flue gas treatment.

[0018] The strip plates installed on the inner wall of the straight pipe can enhance the turbulence effect of the flue gas, making the flue gas form turbulence in the pipe, and further improving the contact between the flue gas and the reaction components. The conical pipe plays a guiding role, ensuring smooth flow of flue gas.

[0019] The device enables the secondary utilization of slaked lime powder. After the slaked lime powder sprayed from the spray gun reacts initially with the flue gas, the unreacted powder settles at the bottom of the straight pipe. The rotating straight pipe can lift the powder at the bottom, and the strip plate on the inner wall of the straight pipe can enhance the lifting effect, allowing the powder to come into contact with the flue gas again and participate in the reaction. This greatly improves the utilization efficiency of the desulfurization powder, reduces raw material waste, and lowers the overall cost of flue gas treatment.

[0020] The device has a reasonable overall structure design, with compact connections between components, making disassembly and maintenance convenient. The speed of the drive motor can be flexibly adjusted according to the actual flow rate and pollutant concentration of industrial flue gas, adapting to different treatment needs and making it highly practical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a high-efficiency dry acid removal and dust removal catalytic synergistic multi-pollutant treatment device; Figure 2 This is a schematic diagram of the reaction components in a highly efficient dry acid removal and dust removal catalytic synergistic multi-pollutant treatment device. Figure 3This is a combined view of two annular support plates in a high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device; Figure 4 This is a view showing the combination of the shaft and blades in a high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device; Figure 5 In a highly efficient dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device Figure 2 Enlarged view of part A; Figure 6 This is a view showing the combination of a gear ring and a transmission gear in a high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device; Figure 7 This is a combined view of straight pipes and strip plates in a high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device.

[0022] In the diagram: 1. Reaction tower; 2. Flue gas outlet pipe; 3. Flue gas treatment pipe; 4. Flue gas conveying pipe; 5. Exhaust fan; 6. Bag filter bag; 7. Sulfur dioxide sensor; 8. Hydrogen sulfide sensor; 9. Hydrogen fluoride sensor; 10. Humidity sensor; 11. Annular support plate; 12. Straight pipe; 13. First annular plate; 14. Conical pipe; 15. Second annular plate; 16. Shaft; 17. Blade; 18. Annular limiting groove; 19. Annular limiting track; 20. Gear ring; 21. Motor support plate; 22. Drive motor; 23. Transmission gear; 24. Cold air inlet; 25. Cold air outlet; 26. Spray head; 27. Spray gun; 28. Strip plate. Detailed Implementation

[0023] 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.

[0024] As mentioned in the background section of this application, research has found that existing flue gas treatment devices often suffer from poor synergistic treatment effects. Insufficient contact and short contact time between flue gas and treatment components lead to low efficiency in deacidification and catalytic reactions, resulting in certain defects.

[0025] To address the aforementioned shortcomings, this application discloses a high-efficiency dry desulfurization and dust removal catalytic synergistic multi-pollutant treatment device. Through optimized structural design, it achieves full contact between flue gas and treatment components, improving the synergistic treatment efficiency of multiple pollutants. At the same time, it enables the secondary utilization of desulfurization dry powder, reducing raw material consumption. The device also features real-time monitoring, efficient heat dissipation, and structural stability, meeting the actual needs of industrial flue gas treatment.

[0026] The following will describe in detail, with reference to the accompanying drawings, how the solution of this application solves the above-mentioned technical problems.

[0027] Please see Figures 1-7 In this embodiment of the invention, a high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device includes a reaction tower 1. The top of the outer side of the reaction tower 1 is connected to a flue gas outlet pipe 2, and a monitoring component is provided inside the flue gas outlet pipe 2. One end of the flue gas outlet pipe 2 is connected to a flue gas treatment pipe 3, and a reaction component is provided inside the flue gas treatment pipe 3. The other end of the flue gas treatment pipe 3 is connected to a flue gas conveying pipe 4, and a spray head 26 is provided at the end of the flue gas conveying pipe 4 near the flue gas treatment pipe 3. Multiple spray guns 27 are arranged around the spray head 26. The reaction tower 1, as the core carrier for the synergistic treatment of multiple pollutants in industrial flue gas, provides a cavity for the preliminary treatment of flue gas. The flue gas outlet pipe 2 realizes the export and transportation of flue gas from the reaction tower 1. Its internal monitoring components can detect relevant flue gas indicators in real time, providing data support for the dynamic control of the flue gas treatment process. The flue gas treatment pipe 3 provides a dedicated reaction cavity for the synergistic treatment of flue gas deacidification and catalytic treatment. Its internal reaction components are the core structure for realizing the deacidification and catalytic treatment of flue gas pollutants. The flue gas delivery pipe 4 realizes the transportation of flue gas after treatment by the flue gas treatment pipe 3. The spray head 26 can cool and humidify the flue gas to optimize the reaction conditions for flue gas treatment. Multiple spray guns 27 arranged around the spray head 26 can spray dry deacidification agent. The deacidification agent is fully mixed with the flue gas and undergoes a deacidification neutralization reaction to complete the dry deacidification pretreatment of the flue gas.

[0028] In this embodiment, the reaction assembly specifically includes: two annular support plates 11 connected in parallel inside the flue gas treatment pipe 3; a straight pipe 12 is fixedly connected between the two annular support plates 11; a first annular plate 13 is embedded on the inner wall of one annular support plate 11 near the flue gas delivery pipe 4; a second annular plate 15 is provided on one side of the other annular support plate 11 near the flue gas outlet pipe 2; a tapered pipe 14 is fixedly connected between the second annular plate 15 and the corresponding annular support plate 11; at least four evenly distributed shafts 16 are fixedly connected between the first annular plate 13 and the second annular plate 15; and several mutually staggered blades 17 are sleeved and fixed on the outside of the shafts 16; a limiting member is provided between the annular support plate 11 and the inner wall of the flue gas treatment pipe 3; and a driving mechanism is provided on one side of the first annular plate 13 for driving the annular support plate 11 and the straight pipe 12 to rotate synchronously. The annular support plate 11 provides a mounting support base and rotation carrier for various components of the reaction assembly. The straight pipe 12 between the two annular support plates 11 provides a dedicated channel for the flow and reaction of flue gas. The first annular plate 13 and the second annular plate 15 provide stable fixed support for the shaft 16. The tapered pipe 14 plays the role of flue gas guide, ensuring that the flue gas smoothly enters the interior of the straight pipe 12 to participate in the reaction. At least four evenly distributed shafts 16 provide a mounting carrier for the blades 17. Several staggered blades 17 can significantly increase the contact area and contact time between the flue gas and the catalytic structure, thereby improving the efficiency of the flue gas catalytic reaction. The limiting component is used to limit the rotation trajectory of the annular support plate 11 and ensure its structural stability during rotation. The driving mechanism can provide rotational power for the annular support plate 11 and the straight pipe 12, driving them to rotate synchronously. This allows the flue gas to fully contact the reaction assembly to improve the treatment effect, and also lifts the deacidifying agent powder that settles at the bottom of the straight pipe 12 for secondary utilization.

[0029] In this embodiment, the driving mechanism specifically includes: four motor support plates 21 uniformly fixed on the inner wall of the flue gas treatment pipe 3; a gear ring 20 is provided on the inner wall of an annular support plate 11 on one side of the motor support plate 21; and a drive motor 22 is fixedly connected to the side of the motor support plate 21 facing the gear ring 20. A transmission gear 23 is fixedly connected to the output shaft of the drive motor 22, and the transmission gear 23 extends into the annular support plate 11 and meshes with the gear ring 20 thereon. The motor support plate 21 provides a stable mounting support for the drive motor 22, preventing the drive motor 22 from shaking during operation. The gear ring 20 and the transmission gear 23 cooperate to form a gear meshing transmission structure. The drive motor 22 provides a power source for the rotation of the entire reaction assembly, and the transmission gear 23 on its output shaft can stably transmit the rotational power of the drive motor 22 to the gear ring 20, thereby driving the annular support plate 11 and the entire reaction assembly to rotate synchronously. The gear meshing transmission method ensures the high efficiency of power transmission and the stability of device operation, adapting to the harsh working conditions of industrial flue gas treatment.

[0030] In this embodiment, the limiting component specifically includes: an annular limiting groove 18 formed on the outer surface of the annular support plate 11, and an annular limiting track 19 fixedly connected to the inner wall of the flue gas treatment pipe 3 at a position corresponding to the annular limiting groove 18, and the annular limiting track 19 is movably connected to the annular limiting groove 18. The annular limiting groove 18 formed on the outer surface of the annular support plate 11 and the annular limiting track 19 on the inner wall of the flue gas treatment pipe 3 cooperate to form a limiting and guiding structure. The annular limiting track 19 and the annular limiting groove 18 are movably connected, which can provide precise guidance for the rotation of the annular support plate 11, limit its radial displacement, and ensure the smooth rotation of the annular support plate 11, avoiding deviation or shaking during rotation, and ensuring the stable operation of the entire reaction assembly.

[0031] In this embodiment, a gap sleeve groove is formed between the straight pipe 12 and the inner wall of the flue gas treatment pipe 3. A cold air inlet 24 communicating with the gap sleeve groove is provided on one side of the outer surface of the flue gas treatment pipe 3, and a cold air outlet 25 communicating with the gap sleeve groove is provided on the other side of the outer surface of the flue gas treatment pipe 3. The gap sleeve groove formed between the straight pipe 12 and the inner wall of the flue gas treatment pipe 3 provides a dedicated channel for cold air circulation. The cold air inlet 24 is used to introduce cold air into the gap sleeve groove, and the cold air outlet 25 is used to discharge the hot air after heat exchange with the pipeline. Through the circulation of cold air within the gap sleeve groove, the heat generated during the flue gas treatment process can be quickly removed, achieving efficient heat dissipation for the straight pipe 12 and the flue gas treatment pipe 3. This prevents the pipeline and internal components from aging and being damaged due to high temperatures, extending the overall service life of the device.

[0032] In this embodiment, a plurality of evenly distributed strip plates 28 are fixedly connected to the inner wall of the straight pipe 12. These evenly distributed strip plates 28, fixedly connected to the inner wall of the straight pipe 12, can, on the one hand, enhance the turbulence of the flue gas within the straight pipe 12, causing the flue gas to form turbulent flow and significantly improving the contact adequacy between the flue gas and the reaction components and deacidifying agent; on the other hand, they can better lift up the incompletely reacted deacidifying agent powder that has settled at the bottom of the straight pipe 12, enabling the secondary utilization of the deacidifying agent powder, improving the utilization efficiency of the deacidifying agent, and reducing raw material waste.

[0033] In this embodiment, the monitoring components include a sulfur dioxide sensor 7, a hydrogen sulfide sensor 8, a hydrogen fluoride sensor 9, and a humidity sensor 10, which are sequentially installed in the flue gas outlet pipe 2. The sulfur dioxide sensor 7, hydrogen sulfide sensor 8, and hydrogen fluoride sensor 9, sequentially installed in the flue gas outlet pipe 2, can monitor the content of acidic pollutants such as sulfur dioxide, hydrogen sulfide, and hydrogen fluoride in the flue gas in real time and accurately. The humidity sensor 10 can monitor the humidity index of the flue gas in real time. The various sensors work together to provide accurate data support for staff to dynamically adjust treatment process parameters such as spray volume, deacidifying agent injection volume, and reaction component rotation speed, ensuring that all pollutant indicators meet emission standards after flue gas treatment.

[0034] In this embodiment, the other end of the flue gas conveying pipe 4 is connected to an induced draft fan 5, and the other end of the induced draft fan 5 is connected to a bag filter bag 6. The induced draft fan 5 provides continuous and stable power for the flow of flue gas in the entire device, ensuring that the flue gas can flow smoothly in various pipes and components such as the flue gas outlet pipe 2, the flue gas treatment pipe 3, and the flue gas conveying pipe 4. The bag filter bag 6 connected to the other end of the induced draft fan 5 performs the final dust removal treatment on the flue gas after a series of treatments including deacidification and catalysis, effectively removing dust particles and unreacted deacidification agent dry powder residue from the flue gas, further purifying the flue gas, and ensuring that the flue gas ultimately meets emission standards.

[0035] The working principle of this invention is as follows: the induced draft fan 5 is started to provide power for the flow of flue gas. The industrial flue gas flows out from the flue gas outlet pipe 2 at the top of the outer side of the reaction tower 1 and enters the subsequent treatment stage. The drive motor 22 and the cold air circulation system are started. The drive motor 22 drives the annular support plate 11, straight pipe 12, shaft 16 and blade 17 to rotate synchronously through the meshing of the transmission gear 23 and the gear ring 20. The cold air enters the gap sleeve groove between the straight pipe 12 and the flue gas treatment pipe 3 from the cold air inlet 24. After circulating, it is discharged from the cold air outlet 25 to continuously dissipate heat for the flue gas treatment pipe 3 and the straight pipe 12 and prevent the components from aging due to the high temperature of the reaction.

[0036] The flue gas flowing out of the flue gas outlet pipe 2 enters the flue gas treatment pipe 3 and smoothly enters the straight pipe 12 under the guidance of the conical pipe 14. At this time, the spray head 26 and the spray gun 27 are activated. The spray head 26 sprays atomized water to cool and humidify the flue gas, and the spray gun 27 sprays dry lime powder into the flue gas. The dry powder mixes with the flue gas initially and undergoes a deacidification and neutralization reaction. Some of the dry lime powder that has not fully reacted with the flue gas will settle at the bottom of the straight pipe 12. As the straight pipe 12 rotates, the dry powder at the bottom is lifted up, and the strip plate 28 on the inner wall of the straight pipe 12 further enhances the lifting effect, so that the dry powder comes into contact with the flue gas again and participates in the deacidification reaction, realizing the secondary utilization of the dry powder. At the same time, the strip plate 28 in the straight pipe 12 creates turbulence in the flue gas, and the rotating blades 17 come into full contact with the flue gas. The catalytic layer on the surface of the blades 17 undergoes a catalytic decomposition reaction with the pollutants in the flue gas, completing the deacidification and catalytic synergistic treatment of the flue gas.

[0037] The sulfur dioxide sensor 7, hydrogen sulfide sensor 8, hydrogen fluoride sensor 9, and humidity sensor 10 inside the flue gas outlet pipe 2 monitor the pollutant content and humidity index of the flue gas in real time during the treatment process, and transmit the data to the control system. The staff can dynamically adjust the speed of the drive motor 22, the water spray volume of the spray head 26, and the amount of quicklime powder sprayed by the spray gun 27 according to the monitoring data to ensure the treatment effect.

[0038] The flue gas that has completed deacidification and catalytic treatment flows out from the flue gas treatment pipe 3 and enters the flue gas conveying pipe 4. Under the power of the induced draft fan 5, the flue gas flows through the induced draft fan 5 and then enters the bag filter bag 6. The final dust removal treatment is completed by the bag filter bag 6, removing dust and unreacted dry powder residue from the flue gas. After all indicators meet the standards, the flue gas is discharged to the outside, completing the entire multi-pollutant treatment process.

[0039] The drive motor 22 of the present invention can be a variable frequency speed control motor, which can flexibly adjust the speed according to the flue gas flow and pollutant concentration to adapt to different treatment needs. The speed adjustment can synchronously control the dry powder lifting effect of the straight pipe 12, further optimizing the deacidification reaction efficiency. The catalytic layer on the surface of the blade 17 can be customized according to the type of pollutants in the actual flue gas to improve the targeting of the catalytic reaction.

[0040] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device, characterized in that, The reaction tower (1) is connected to a flue gas outlet pipe (2) at its outer top, and a monitoring component is provided inside the flue gas outlet pipe (2). One end of the flue gas outlet pipe (2) is connected to a flue gas treatment pipe (3), and a reaction component is provided inside the flue gas treatment pipe (3). The other end of the flue gas treatment pipe (3) is connected to a flue gas conveying pipe (4), and a spray head (26) is provided at one end of the flue gas conveying pipe (4) near the flue gas treatment pipe (3). Multiple spray guns (27) are arranged around the spray head (26).

2. The high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device according to claim 1, characterized in that, The reaction assembly specifically includes: two annular support plates (11) connected in parallel inside the flue gas treatment pipe (3), a straight pipe (12) fixedly connected between the two annular support plates (11), a first annular plate (13) embedded on the inner wall of one annular support plate (11) near the flue gas conveying pipe (4), a second annular plate (15) on one side of the other annular support plate (11) near the flue gas outlet pipe (2), and a tapered pipe (14) fixedly connected between the second annular plate (15) and the corresponding annular support plate (11), at least four evenly distributed shafts (16) fixedly connected between the first annular plate (13) and the second annular plate (15), and several mutually staggered blades (17) sleeved and fixed on the outside of the shafts (16), a limiting member is provided between the annular support plate (11) and the inner wall of the flue gas treatment pipe (3), and a driving mechanism is provided on one side of the first annular plate (13) for driving the annular support plate (11) and the straight pipe (12) to rotate synchronously.

3. The high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device according to claim 2, characterized in that, The drive mechanism specifically includes: four motor support plates (21) evenly fixed on the inner wall of the flue gas treatment pipe (3), a gear ring (20) is provided on the inner wall of the annular support plate (11) on one side of the motor support plate (21), and a drive motor (22) is fixedly connected to the side of the motor support plate (21) facing the gear ring (20). The output shaft of the drive motor (22) is fixedly connected to a transmission gear (23), and the transmission gear (23) extends into the annular support plate (11) and meshes with the gear ring (20) on it.

4. The high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device according to claim 3, characterized in that, The limiting component specifically includes: an annular limiting groove (18) opened on the outer side of the annular support plate (11), and an annular limiting track (19) fixedly connected to the inner wall of the flue gas treatment pipe (3) at the position corresponding to the annular limiting groove (18), and the annular limiting track (19) and the annular limiting groove (18) are movably connected.

5. The high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device according to claim 4, characterized in that, A gap sleeve groove is formed between the straight pipe (12) and the inner wall of the flue gas treatment pipe (3), and a cold air inlet (24) communicating with the gap sleeve groove is provided on one side of the outer surface of the flue gas treatment pipe (3), and a cold air outlet (25) communicating with the gap sleeve groove is provided on the other side of the outer surface of the flue gas treatment pipe (3).

6. The high-efficiency dry deacidification, dust removal, and catalytic synergistic multi-pollutant treatment device according to claim 5, characterized in that, Several uniformly distributed strip plates (28) are fixedly connected to the inner wall of the straight pipe (12).

7. The high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device according to claim 1, characterized in that, The monitoring components include a sulfur dioxide sensor (7), a hydrogen sulfide sensor (8), a hydrogen fluoride sensor (9), and a humidity sensor (10) sequentially disposed in the flue gas outlet pipe (2).

8. The high-efficiency dry deacidification and dust removal catalytic synergistic multi-pollutant treatment device according to claim 1, characterized in that, The other end of the flue gas conveying pipe (4) is connected to an induced draft fan (5), and the other end of the induced draft fan (5) is connected to a bag filter bag (6).

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