Integrated Flue Gas Purification Device and Method for Desulfurization and Denitrification Based on Multiphase Turbulence Enhancement

Abstract

This invention relates to the field of flue gas purification technology, specifically to an integrated flue gas purification device and method for desulfurization and denitrification based on multiphase turbulence enhancement. The device includes: a purification tower body with an air inlet, an air outlet, and an upper spray nozzle; a rotary filter structure installed at the bottom of the purification tower body, through which flue gas passing through the rotary filter structure can undergo spiral motion within the purification tower body; a spiral channel disposed within the purification tower body, which enables the flue gas to maintain spiral motion; and a counter-current diverter installed within the purification tower body and located between the rotary filter structure and the spiral channel, which guides the flue gas into the spiral channel and initially mixes the flue gas with the purification liquid, achieving filtration of the flue gas and thorough mixing of the flue gas and the purification liquid, thus ensuring purification effectiveness.

Description

Technical Field

[0001] This invention relates to the field of flue gas purification technology, specifically to an integrated flue gas purification device and method for desulfurization and denitrification based on multiphase turbulence enhancement. Background Technology

[0002] With the development of modern industry, industrial pollution control has become increasingly important. If harmful substances such as SO2 produced by industrial boiler combustion are directly emitted without strict desulfurization treatment, they can irritate the human respiratory tract and even induce cancer.

[0003] In response, Chinese patent CN108421397A discloses an integrated flue gas purification device for dust removal, desulfurization, and denitrification, including a treatment tower, an air inlet pipe, an exhaust port, a cyclone separator, oblique flow blades, and a reaction liquid nozzle. This device causes the mixed flue gas to form a spiral upward motion trajectory, increasing the length of the process and allowing the flue gas and reaction liquid to be fully mixed and reacted, thereby improving the desulfurization effect of the flue gas.

[0004] However, the aforementioned spiral upward motion of the flue gas is passively accomplished, that is, it is achieved by relying on the kinetic energy of the linear motion of the flue gas in conjunction with the cyclone and the oblique flow blades. When the flue gas switches from linear motion to spiral upward motion, the flue gas will feel blocked in the treatment tower. This will increase the load on the equipment on the one hand, and cause the flue gas to flow poorly in the treatment tower on the other hand, resulting in the inability of harmful substances to be completely absorbed and purified. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated flue gas purification device and method for desulfurization and denitrification based on multiphase turbulence enhancement, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement, comprising: a purification tower body, wherein the purification tower body is provided with an air inlet, an air outlet and an upper spray nozzle; a rotary filter structure installed at the bottom of the purification tower body, wherein the flue gas passing through the rotary filter structure can move in a spiral motion within the purification tower body; a spiral channel disposed within the purification tower body, wherein the spiral channel enables the flue gas to maintain spiral motion; and a counter-current reversing component installed within the purification tower body and located between the rotary filter structure and the spiral channel, wherein the counter-current reversing component can guide the flue gas into the spiral channel and initially mix the flue gas with the purification liquid.

[0007] As a further aspect of the present invention: the rotary filter structure includes a rotating component rotatably installed inside the purification tower body, the rotating component being coaxially arranged with the air inlet, and an end cap being detachably installed at the upper end of the rotating component, forming a cavity structure between the end cap and the rotating component, and multiple sets of guide ports being circumferentially and equidistantly arranged on the side wall of the cavity structure; a rotary drive component is provided inside the cavity structure, and the flue gas entering the cavity structure can perform circumferential motion under the drive of the rotary drive component.

[0008] As a further embodiment of the present invention: the rotating component has a flow channel that communicates with the air inlet, and the rotating drive component includes multiple sets of baffles arranged in the cavity structure and distributed equidistantly in a circle, the center of the multiple sets of baffles being coaxial with the center of the flow channel; the flue gas entering the cavity structure through the flow channel can make a circular motion under the drive of the baffles.

[0009] As a further embodiment of the present invention: an arc-shaped inclined guide is fixedly installed on the side of the rotating component, and the arc-shaped inclined guide can guide the flue gas escaping from the guide port to collide with the counter-current reversing component.

[0010] As a further embodiment of the present invention: a gap is formed between the end of the stop plate away from its center and the inner wall of the rotating member; the rotating filter structure further includes a filter element disposed inside the rotating member and attached to the inner wall, the filter element having an isosceles triangular cross-section.

[0011] As a further embodiment of the present invention: a first gear coaxial with the rotating component is fixedly installed on the rotating component, the first gear meshes with a second gear disposed in the purification tower body, and the second gear is connected to the output shaft of a drive motor fixedly installed in the purification tower body.

[0012] As a further embodiment of the present invention: the spiral channel includes a flow channel fixedly installed inside the purification tower body, the two ends of the flow channel are provided with conical guide portions connecting to the inner wall of the purification tower body, and a spiral baffle is provided inside the flow channel.

[0013] As a further embodiment of the present invention: the counter-current annular component includes an annular connecting pipe fixedly installed inside the purification tower body, and multiple sets of nozzles are circumferentially and equidistantly arranged on the inner side of the annular connecting pipe. The nozzles are inclined upwards, and the orientation of the nozzles in the horizontal direction is the same as the direction of flue gas rotation. A liquid pumping device is fixedly installed on the side of the purification tower body, and the liquid pumping device is connected to the upper spraying component and the annular connecting pipe respectively through a conduit.

[0014] The method of using the integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement, as described above, includes the following steps:

[0015] Step 1: Connect the air inlet and outlet to the external pipelines;

[0016] Step two: The flue gas to be purified enters the rotary filter structure through the air inlet, completing the filtration of the flue gas, while the flue gas is given rotational kinetic energy.

[0017] Step 3: The rotating flue gas spirals upward and counteracts the opposing reversing component, mixing with the purification liquid and entering the spiral channel;

[0018] Step four: The flue gas rises again through the spiral channel and mixes a second time with the upper injection component;

[0019] Step 5: The purified flue gas is discharged through the air outlet.

[0020] Compared with existing technologies, the beneficial effects of this invention are as follows: Firstly, the rotating filter structure provides the flue gas with initial rotational kinetic energy, enabling it to actively generate a spiral upward motion path during its upward movement. This improves the mixing effect between the flue gas and the purification liquid, enhances turbulent mixing, prevents blockage when entering the spiral channel, and improves the system's operating efficiency. Secondly, during rotation, it achieves filtration of solid particulate matter, improving the cleanliness of flue gas emissions. Simultaneously, it directs solid particulate matter towards the end of the filter element, ensuring the permeability of the flue gas through the filter element and extending its service life. The designed spiral channel allows the flue gas and purification liquid to be pressurized during flow, forcing them to mix in a narrower space. This increases the mixing pressure and further ensures the degree of mixing between the flue gas and purification liquid, guaranteeing the thorough removal of harmful substances from the flue gas. The counter-current annular component, through the synergistic effect of the arc-shaped inclined guide and the double-tilted nozzles, ensures more thorough mixing of the flue gas and atomized purification liquid, significantly improving purification efficiency. Secondly, it reduces the loss of rotational kinetic energy during flue gas collisions, lowering system energy consumption. Simultaneously, it improves the stability of the flue gas spiral motion, reducing flue gas stagnation or backflow caused by insufficient kinetic energy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0022] Figure 2 This is a schematic diagram of the internal structure of the purification tower body in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0023] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the internal structure of the purification tower body from another angle in one embodiment of the integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0025] Figure 5 This is a schematic diagram of the rotating filter structure in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0026] Figure 6 This is a cross-sectional view of the rotary filter structure in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0027] Figure 7 An exploded view of the rotating filter structure in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement;

[0028] Figure 8 This is a top view of the rotating component and baffle in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0029] Figure 9 This is a schematic diagram of the counter-current switching component in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0030] Figure 10 This is a schematic diagram of the spiral channel in one embodiment of an integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement.

[0031] In the diagram: 1. Purification tower body; 101. Air inlet; 102. Air outlet; 2. Rotating component; 201. Flow guide; 3. First gear; 4. Second gear; 5. Drive motor; 6. End cover; 7. Stop plate; 8. Filter element; 9. Arc-shaped inclined guide; 10. Flow channel; 11. Annular connecting pipe; 12. Nozzle; 13. Upper spray component; 14. Pump device; 15. Flow channel; 1501. Conical guide; 16. Spiral baffle. 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] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0034] Please see Figures 1-10 In this embodiment of the invention, the integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement includes: a purification tower body 1, a rotary filter structure, a spiral channel, and a counter-current switching component.

[0035] The purification tower body 1 is provided with an air inlet 101, an air outlet 102 and an upper spray nozzle 13. In use, flue gas enters the purification tower body 1 through the air inlet 101 and is fully mixed with the purification liquid sprayed by the upper spray nozzle 13 to absorb pollutants such as sulfides in the flue gas, and then is discharged through the air outlet 102.

[0036] The rotary filter structure is installed at the bottom of the purification tower body 1. The flue gas passing through the rotary filter structure can make spiral motion inside the purification tower body 1. The rotary filter structure includes a rotating component 2 rotatably installed inside the purification tower body 1. The rotating component 2 is coaxially arranged with the air inlet 101, and an end cover 6 is detachably installed at the upper end of the rotating component 2. A cavity structure is formed between the end cover 6 and the rotating component 2. Multiple sets of guide ports 201 are circumferentially and equidistantly arranged on the side wall of the cavity structure. A rotary drive component is provided inside the cavity structure. The flue gas entering the cavity structure can make circular motion under the drive of the rotary drive component. A first gear 3 coaxially mounted on the rotating component 2 is fixedly installed. The first gear 3 meshes with a second gear 4 arranged inside the purification tower body 1. The second gear 4 is connected to the output shaft of the drive motor 5 fixedly installed inside the purification tower body 1.

[0037] In this embodiment, the flue gas to be treated enters the cavity structure formed by the rotating component 2 and the end cap 6 inside the purification tower body 1 through the air inlet 101. Under the action of the rotating drive component, the flue gas is given rotational kinetic energy in the cavity, thereby achieving active and rapid rotation. Subsequently, the flue gas is discharged through the guide port 201 and forms a spiral upward motion as it moves towards the air outlet 102. Based on this setting, the movement path of the flue gas in the purification tower body 1 is extended, allowing it to fully collide and mix with the purification liquid in the purification tower body 1, thereby significantly improving the purification effect of the flue gas.

[0038] Compared with the traditional method of using inclined baffles to drive the flue gas into a passive spiral motion, the active rapid rotation design in this embodiment makes the spiral motion trend of the flue gas more obvious during the upward process. This active rotation mechanism not only extends the movement path of the flue gas, but also enhances the turbulent mixing effect between the flue gas and the purification liquid. Turbulent mixing can effectively break the boundary layer of the gas-liquid interface, promote the mass transfer process, and further improve the purification efficiency.

[0039] In summary, this embodiment significantly improves the mixing effect of flue gas and purification liquid by introducing an active rotation mechanism, extends the movement path of flue gas, and enhances turbulent mixing, thereby achieving more efficient flue gas purification.

[0040] Please see Figures 7-8 The rotating component 2 has a flow channel 10 that communicates with the air inlet 101. The rotating drive component includes multiple sets of baffles 7 arranged in the cavity structure and distributed equidistantly in a circle. The center of the multiple sets of baffles 7 is coaxial with the center of the flow channel 10. The flue gas entering the cavity structure through the flow channel 10 can make a circular motion under the drive of the baffles 7. An arc-shaped inclined guide 9 is fixedly installed on the side of the rotating component 2. The arc-shaped inclined guide 9 can guide the flue gas escaping from the guide port 201 to collide with the counter-flow reversing component.

[0041] In this embodiment, when the flue gas to be treated enters the purification tower body 1 through the air inlet 101, it first passes through the diversion channel 10 and then is evenly distributed into the area formed by two adjacent sets of baffles 7. The baffles 7 and the rotating component 2 move in a circular motion in sync. Through their motion, the flue gas gains enough kinetic energy to move in a circular motion. This process ensures that the flue gas can maintain stable rotational kinetic energy when it is discharged, providing a basis for the subsequent spiral upward motion.

[0042] Furthermore, after the flue gas is discharged from the guide port 201, the arc-shaped inclined guide 9 guides the flue gas. It not only changes the flue gas from horizontal movement to an active upward movement, but also effectively prevents the flue gas from directly impacting the inner wall of the purification tower body 1, thereby preventing the loss of rotational kinetic energy. This ensures that the flue gas can stably spiral upward within the purification tower body 1, significantly extending the residence time and movement path of the flue gas within the tower.

[0043] With this design, the movement path of flue gas within the purification tower body 1 is significantly extended, thereby increasing the contact time and contact area between flue gas and purification liquid. This not only improves the mass transfer efficiency between flue gas and purification liquid but also enhances the purification effect. In addition, the guiding effect of the arc-shaped inclined guide 9 can reduce the impact of flue gas on the tower wall, reduce the wear of the tower wall, and extend the service life of the equipment.

[0044] In summary, through the synergistic effect of the flow channel 10, the stop plate 7, and the arc-shaped inclined guide 9, this embodiment not only achieves uniform distribution and stable rotation of flue gas, but also significantly improves the purification effect of flue gas by extending the movement path of flue gas and enhancing mass transfer efficiency.

[0045] Please see Figures 6-7 The stop plate 7 has a gap between its end away from its center and the inner wall of the rotating member 2; the rotating filter structure also includes a filter element 8 disposed inside the rotating member 2 and attached to the inner wall, the filter element 8 having an isosceles triangular cross-section.

[0046] When the flue gas to be treated enters the cavity structure, it can undergo circular motion under the action of the baffle 7. During this process, the solid particulate impurities mixed in the flue gas also undergo circular motion. Due to the centrifugal force, these solid particles will actively move towards the filter element 8, while the flue gas can pass smoothly through the filter element 8, thereby effectively removing the solid particulate impurities in the flue gas and ensuring that the emitted flue gas meets the cleanliness standards.

[0047] Because the cross-section of the filter element 8 is designed as an isosceles triangle, when solid particles move onto and accumulate on the filter element 8, centrifugal force is generated due to the circular motion of the filter element 8 following the rotating part 2. Under the action of centrifugal force, the dust accumulated on the filter element 8 can move towards both ends of the filter element 8 along its axial direction. This avoids the accumulation of solid particles on the filter element 8, thereby effectively preventing the problem of reduced flue gas permeability caused by particle accumulation. In this way, the filter element 8 can maintain high filtration efficiency and air permeability, extend its service life, and reduce the maintenance frequency and cost of the equipment.

[0048] In summary, through the synergistic effect of the baffle 7 and the filter element 8 with its isosceles triangular structure, this embodiment not only achieves effective removal of solid particulate impurities from flue gas, but also optimizes the service life of the filter element 8 and the maintenance cost of the equipment, significantly improving the performance and economy of the entire flue gas purification system.

[0049] Please see Figure 2 , Figure 4 , Figure 10 The spiral channel is disposed inside the purification tower body 1. The spiral channel enables the flue gas to maintain spiral motion. The spiral channel includes a diversion channel 15 fixedly installed inside the purification tower body 1. Both ends of the diversion channel 15 are provided with conical guide portions 1501 that connect to the inner wall of the purification tower body 1. A spiral baffle 16 is provided inside the diversion channel 15. The circumferential diameter of the diversion channel 15 is smaller than the diameter of the purification tower body 1.

[0050] In this embodiment, when the flue gas and the purification liquid enter the diversion channel 15, their flow path switches from a channel with a larger diameter to a channel with a smaller diameter. This process causes the flue gas and the purification liquid to be pressurized during the flow, thus forcing them to mix in a narrower space. This pressurized mixing method greatly enhances the contact area and mixing intensity between the flue gas and the purification liquid, thereby significantly improving the purification effect. In this way, the pollutants in the flue gas can react more fully with the purification liquid, thereby achieving more efficient purification.

[0051] Furthermore, when the flue gas and the purification liquid enter the guide channel 15, since they already possess the kinetic energy for active rotation in the initial state, they can move more smoothly in a spiral motion under the guidance of the spiral baffle 16. This setting reduces the feeling of obstruction when the flue gas switches from vertical upward movement to spiral upward movement, thereby improving the smoothness of the flow of flue gas and purification liquid. By reducing the resistance in the flow process, not only is the operating efficiency of the system improved, but the mixing effect between the flue gas and the purification liquid is further enhanced.

[0052] Based on the above setup, firstly, through the synergistic effect of pressurized mixing and spiral motion, the mixing of flue gas and purified liquid is more uniform and thorough, which directly improves purification efficiency. Secondly, reducing flow resistance not only lowers the system's energy consumption but also improves the stability and reliability of the equipment.

[0053] Please see Figure 2 , Figure 4 , Figure 9 The counter-current reversing component is installed inside the purification tower body 1 and located between the rotary filter structure and the spiral channel. The counter-current reversing component can guide the flue gas into the spiral channel and make the flue gas and purification liquid initially mix. The counter-current annular component includes an annular connecting pipe 11 fixedly installed inside the purification tower body 1. Multiple sets of nozzles 12 are circumferentially and equidistantly arranged on the inner side of the annular connecting pipe 11. The nozzles 12 are inclined upward. A pumping device 14 is fixedly installed on the side of the purification tower body 1. The pumping device 14 is connected to the upper spraying component 13 and the annular connecting pipe 11 through conduits.

[0054] In this embodiment, when the flue gas is discharged from the guide port 201 and guided by the arc-shaped inclined guide 9 to move in an upward spiral motion, the flue gas will collide with the atomized purification liquid sprayed by the nozzle 12 before touching the inner wall of the purification tower body 1. This collision not only promotes the atomized purification liquid to mix fully with the flue gas, but also guides the flue gas to move towards the middle of the purification tower body 1, so as to enter the guide channel 15 more smoothly, improve the mixing efficiency of flue gas and purification liquid, and enhance the purification effect.

[0055] To further optimize this process, the nozzle 12 is not only tilted upwards, but also tilted horizontally. That is, the nozzle's orientation in the horizontal direction is at an angle to the radial direction of the rotating filter structure. This allows the atomized purification liquid to fully collide with the flue gas, while also providing a force along the flue gas's rotational direction. This force not only replenishes the rotational kinetic energy that the flue gas may lose during the collision, but also enhances the stability of the flue gas's spiral motion, ensuring a smoother and more efficient movement path for the flue gas throughout the purification tower.

[0056] Based on the above settings, firstly, through the synergistic effect of the arc-shaped inclined guide 9 and the double-tilted nozzle 12, the mixing of flue gas and atomized purification liquid is more thorough, significantly improving the purification efficiency. Secondly, it reduces the loss of rotational kinetic energy of flue gas during collision, reducing the energy consumption of the system. At the same time, it improves the stability of the flue gas spiral motion and reduces the phenomenon of flue gas stagnation or backflow caused by insufficient kinetic energy.

[0057] As an embodiment of the present invention, a method for using the integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described above is also proposed, including the following steps:

[0058] Step 1: Connect the air inlet 101 and air outlet 102 to the external pipeline;

[0059] Step 2: The flue gas to be purified enters the rotary filter structure through the air inlet 101, completing the filtration of the flue gas, while the flue gas is given rotational kinetic energy.

[0060] Step 3: The rotating flue gas spirals upward and counteracts the opposing reversing component, mixing with the purification liquid and entering the spiral channel;

[0061] Step four: The flue gas rises again through the spiral channel and mixes a second time with the upper injection component 13;

[0062] Step 5: The purified flue gas is discharged through the air outlet 102.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement, comprising: The purification tower body includes an air inlet, an air outlet, and an upper spray nozzle; it is characterized by further comprising: a rotary filter structure installed at the bottom of the purification tower body, through which flue gas passing through the rotary filter structure can undergo spiral motion within the purification tower body; a spiral channel disposed within the purification tower body, which enables the flue gas to maintain spiral motion; and a counter-current reversing component installed within the purification tower body and located between the rotary filter structure and the spiral channel, which guides the flue gas into the spiral channel and allows for preliminary mixing of the flue gas with the purification liquid; the rotary filter structure includes a rotating component rotatably installed within the purification tower body, the rotating component being coaxially arranged with the air inlet, and... The upper end of the rotating component is detachably fitted with an end cap, forming a cavity structure between the end cap and the rotating component. Multiple sets of guide ports are circumferentially spaced on the sidewall of the cavity structure. A rotating drive component is installed inside the cavity structure, allowing the flue gas entering the cavity to move in a circular motion under the drive of the rotating drive component. The counter-current annular component includes an annular connecting pipe fixedly installed inside the purification tower body. Multiple sets of nozzles are circumferentially spaced on the inner side of the annular connecting pipe, with the nozzles angled upwards and their horizontal orientation matching the flue gas rotation direction. A liquid pumping device is fixedly installed on the side of the purification tower body, and the liquid pumping device is connected to the upper spray component and the annular connecting pipe via conduits.

2. The integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described in claim 1, characterized in that, The rotating component has a flow channel that communicates with the air inlet. The rotating drive component includes multiple sets of baffles that are disposed in the cavity structure and are equidistantly distributed in a circle. The center of the multiple sets of baffles is coaxial with the center of the flow channel. The flue gas that enters the cavity structure through the flow channel can make a circular motion under the drive of the baffles.

3. The integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described in claim 1, characterized in that, An arc-shaped inclined guide is fixedly installed on the side of the rotating component. The arc-shaped inclined guide can guide the flue gas escaping from the guide port to collide with the counter-flow reversing component.

4. The integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described in claim 2, characterized in that, A gap is formed between the end of the stop plate away from its center and the inner wall of the rotating component; the rotating filter structure also includes a filter element disposed inside the rotating component and attached to the inner wall, the filter element having an isosceles triangular cross-section.

5. The integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described in claim 1, characterized in that, A first gear coaxial with the rotating component is fixedly mounted on it. The first gear meshes with a second gear disposed in the body of the purification tower. The second gear is connected to the output shaft of a drive motor fixedly mounted in the body of the purification tower.

6. The integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described in claim 1, characterized in that, The spiral channel includes a flow channel fixedly installed inside the purification tower body. Both ends of the flow channel are provided with conical guides that connect to the inner wall of the purification tower body, and a spiral baffle is provided inside the flow channel.

7. The method of using the integrated flue gas purification device for desulfurization and denitrification based on multiphase turbulence enhancement as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Step 1: Connect the air inlet and outlet to the external pipelines; Step two: The flue gas to be purified enters the rotary filter structure through the air inlet, completing the filtration of the flue gas, while the flue gas is given rotational kinetic energy. Step 3: The rotating flue gas spirals upward and counteracts the opposing reversing component, mixing with the purification liquid and entering the spiral channel; Step four: The flue gas rises again through the spiral channel and mixes a second time with the upper injection component; Step 5: The purified flue gas is discharged through the air outlet.

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