A wet flue gas desulfurization absorption tower oxidation air volume adjusting device and method

Abstract

The application discloses a kind of wet flue gas desulfurization absorption tower oxidation air volume regulating device and method, it is related to wet flue gas desulfurization technical field, cannot be according to flue gas flow rate, flue gas sulfur content to change gas passage skillfully, so that absorption tower inside absorbent utilization efficiency is low, sulfite oxidation is not complete, subsequent equipment scaling, blockage frequently occurs, seriously interfere with system normal operation, additional increase a large amount of maintenance cost and shutdown repair time, the present application is through the cooperation of multiple groups of spindle shape upper and lower cone and partition sheet, can be according to air volume, flue gas flow rate flexible dispersion flue gas, eliminate flue gas aggregation, let it contact with lime water uniformly, chemical reaction is more sufficient, furthermore, when oxidation air volume fluctuates, upper cone can automatically lift, precisely widen or shrink air duct, maintain tower pressure stable, ensure that fan runs smoothly, with upper cone linkage, continue to change flue gas contact position, adhere to fresh lime water, repeatedly capture sulfide, greatly improve desulfurization efficiency and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of wet flue gas desulfurization, and in particular to a device and method for regulating the oxidation air volume of a wet flue gas desulfurization absorption tower. Background Art

[0002] In today's industrial production landscape, especially in energy-intensive industries like thermal power, steel, and chemicals, combustion processes generate large quantities of sulfur-containing flue gas. If released directly into the atmosphere without effective treatment, sulfur dioxide and other sulfides can cause serious environmental pollution problems such as acid rain and smog, causing immeasurable damage to ecosystems, buildings, and human health. Therefore, wet flue gas desulfurization (FGD) technology, as a mainstream desulfurization method, is widely used in various industrial waste gas purification processes.

[0003] In this regard, publication number CN113230845A discloses a pressure-stabilizing swirl air volume adjustment device for the inlet of a wet flue gas desulfurization oxidation fan. The invention has a large adjustment range and excellent adjustment performance. Through the air inlet housing, fairing, blades and the channel formed between the air inlet housing and the fairing, it has a unique variable geometric flow channel, which can effectively reduce the impact of the airflow and flow friction loss, form a pre-swirl flow field, and effectively reduce the wind pressure loss caused by lowering the opening of the inlet valve, ensuring that the wind pressure meets the process requirements. It has a unique wind field design, thereby ensuring that the fan adjustment performance is stable and the adjustment depth is large. Although the fan speed remains unchanged, the motor current can be reduced by changing the fan flow in time, thereby saving a lot of electricity.

[0004] Existing solutions are extremely passive and rigid when dealing with flue gases with varying sulfur contents. High-sulfur flue gas requires stronger gas-liquid reaction efficiency, more abundant oxidation air volume, and a suitable gas-liquid contact configuration. However, due to the lack of a flexible adjustment mechanism for the limewater coverage area, the gas channel cannot be cleverly altered based on the flue gas flow rate and sulfur content, leaving the chemical reaction within the absorption tower in a persistently "subhealthy" state. This results in low absorbent utilization efficiency, incomplete sulfite oxidation, and frequent scaling and clogging of subsequent equipment, which severely interferes with the normal operation of the system and adds significant maintenance costs and downtime.

[0005] In view of the above problems, a device and method for regulating the oxidation air volume of a wet flue gas desulfurization absorption tower are proposed. Summary of the Invention

[0006] The object of the present invention is to provide an oxidation air volume regulating device and method for a wet flue gas desulfurization absorption tower, which solves the problem of low absorption efficiency in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an oxidation air volume regulating device for a wet flue gas desulfurization absorption tower, comprising a tower silo, one side of the tower silo is connected to an air inlet silo, a fan is mounted on the top surface of the air inlet silo, an air duct is mounted on the bottom end of the fan, the other side of the tower silo is connected to a guide silo, and a separation plate is embedded in the interior of the tower silo;

[0008] An adaptive component is embedded in the interior of the tower bin, the adaptive component includes a lower filter plate, the lower filter plate is embedded in the interior of the tower bin, the top of the lower filter plate is connected to a purification component, the purification component includes a support frame, the top of the lower filter plate is connected to the support frame, the top of the support frame is connected to a lower cone, a separator is embedded in the interior of the lower cone, the top of the lower cone is connected to an upper cone, the top of the upper cone is connected to a connecting rod, and the top of the connecting rod is connected to the upper filter plate;

[0009] A lower guide groove is embedded in the interior of the support frame, an upper guide groove is embedded in the interior of the upper cone, both ends of the upper guide groove and the lower guide groove are provided with a fitting surface, and the upper guide groove and the lower guide groove are movably connected;

[0010] The interior of the upper cone is connected to an adjustment component, which includes an insertion rod. The interior of the upper cone is embedded with the insertion rod, which is embedded in the interior of the circulating belt. The outer surface of the circulating belt is connected to a resistance sheet, and the inner side of the circulating belt is connected to two sets of transmission rollers, which are used to support the rotation of the circulating belt.

[0011] Preferably, an air intake assembly is embedded in the interior of the air intake bin, and the air intake assembly includes a guide pipe, the air duct and the guide pipe are connected, the end of the guide pipe is connected to a bending pipe, and the bending pipe is embedded in the interior of the guide bin, and a propulsion groove is also provided in the interior of the guide bin, and a filter plate and a vibrating screen plate are embedded in the propulsion groove, and a spring rod is connected to the vibrating screen plate.

[0012] Preferably, the fan is used to transport the flue gas, which is transported to the inside of the guide pipe through the air duct, then transported to the inside of the tower bin through the bent pipe, and finally discharged through the separation plate.

[0013] Preferably, the bent tube is arranged in a U shape, the bent tube outlet corresponds to the vibrating screen plate, the vibrating screen plate is slidably connected to the inside of the guide bin, a vibration motor is installed inside the guide bin, and the vibration motor acts on the vibrating screen plate, so that the vibrating screen plate slides horizontally inside the guide bin.

[0014] Preferably, upper cones and lower cones are evenly distributed between the upper filter plate and the lower filter plate, and upper guide grooves and lower guide grooves are provided inside each group of upper cones and lower cones, and the outermost upper guide grooves and lower guide grooves are connected to the conducting tubes, the bottom ends of the conducting tubes correspond to the upper guide grooves and the lower guide grooves, and the top ends of the conducting tubes are located at the bottom end of the separation plate.

[0015] Preferably, the upper cone and the lower cone are combined into a spindle shape, and a cavity is provided inside the upper cone and the support frame, and the cavity provided inside the support frame is filled with lime water.

[0016] Preferably, the upper cones and the lower guide grooves are evenly distributed on the lower filter plate in the transverse and longitudinal directions, and the separator is embedded between the two groups of upper cones. The separator is used to separate the longitudinally distributed upper cones.

[0017] Preferably, the dividing piece is divided into a dividing part, a propulsion part and a guiding part. The bottom end of the dividing part is arc-shaped. The dividing part is used to connect the two groups of dividing pieces. The top end of the dividing part is connected to the propulsion part. The top end of the propulsion part is connected to the guiding part. The guiding part is set to an arc shape. The top end of the guiding part is embedded in the interior of the upper guide groove and the lower guide groove.

[0018] Preferably, the circulating belt is connected to the interior of the upper cone through an insertion rod, the bottom end of the circulating belt is embedded in the cavity opened in the lower cone, and the bottom end of the resistance sheet is immersed in the lime water filled in the cavity.

[0019] A method for using an oxidation air volume regulating device for a wet flue gas desulfurization absorption tower:

[0020] S1: The flue gas is first transported to the guide pipe through the fan and air duct to dissipate heat and cool down to prevent subsequent water evaporation;

[0021] S2: The particles are then sprayed onto the vibrating screen plate through the bent pipe to intercept them, and the vibration motor helps to desorb them;

[0022] S3: The purified flue gas enters the tower bin and is dispersed into the lower cone through the partition plate, where it reacts with the lime water in the support frame. When the flue gas flow rate and air volume change, the upper cone rises and falls to adjust the air duct, accompanied by the rotation of the circulation belt and resistance plate, and desulfurization is carried out through dynamic contact.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides an oxidation air volume regulating device and method for a wet flue gas desulfurization absorption tower. Through multiple groups of spindle-shaped upper and lower cones and separators, the flue gas can be flexibly dispersed according to the air volume and flue gas flow rate, eliminating flue gas aggregation, allowing it to evenly contact with lime water, and achieving a more complete chemical reaction. Furthermore, when the oxidation air volume fluctuates, the upper cone can automatically rise and fall, accurately widening or shrinking the air duct, maintaining stable pressure in the tower, ensuring smooth operation of the fan, and continuously changing the flue gas contact position with the upper cone, adhering to fresh lime water, repeatedly capturing sulfides, and greatly improving the desulfurization efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the tower bin and separation plate of the present invention;

[0027] Figure 3 Schematic diagram of the cross-sectional structure of the tower warehouse of the present invention;

[0028] Figure 4 Schematic diagram of the structure of the air inlet assembly of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the lower filter plate and the upper filter plate of the present invention;

[0030] Figure 6 Schematic diagram of the structure of the connecting rod of the present invention;

[0031] Figure 7 Schematic diagram of the front view of the upper cone and the lower cone of the present invention;

[0032] Figure 8 This is a schematic structural diagram of the lower guide groove and the separator of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the upper cone and the lower cone of the present invention in the unfolded state;

[0034] Figure 10 It is a schematic structural diagram of the connecting rod and the lower cone of the present invention in a disassembled state.

[0035] In the figure: 11. tower bin; 12. air inlet bin; 13. fan; 14. air duct; 15. guide bin; 16. separation plate; 2. air inlet assembly; 21. guide pipe; 22. bending pipe; 23. spring rod; 24. vibrating screen plate; 25. filter plate; 26. propulsion groove; 3. adaptive assembly; 31. guide pipe; 32. lower filter plate; 33. purification assembly; 331. connecting rod; 332. upper cone; 333. upper guide groove; 334. fitting surface; 335. lower guide groove; 336. lower cone; 337. separator; 338. support frame; 34. upper filter plate; 4. adjustment assembly; 41. insertion rod; 42. circulation belt; 43. resistance plate. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0038] Combine Figures 1-10 The present invention provides an oxidation air volume regulating device for a wet flue gas desulfurization absorption tower, comprising a tower bin 11, one side of the tower bin 11 being connected to an air inlet bin 12, a fan 13 being mounted on the top surface of the air inlet bin 12, an air duct 14 being mounted on the bottom end of the fan 13, the other side of the tower bin 11 being connected to a guide bin 15, and a separation plate 16 being embedded in the interior of the tower bin 11;

[0039] During the flue gas desulfurization process, the flue gas is transported to the interior of the guide pipe 21 through the fan 13 and the air duct 14. After the flue gas enters the interior of the guide pipe 21, part of the heat in the flue gas can be dissipated, reducing the temperature of the flue gas, thereby preventing the evaporation of water in the subsequent treatment process;

[0040] The air intake assembly 2 is embedded in the air intake bin 12, and the air intake assembly 2 includes a guide pipe 21, and the air pipe 14 is connected to the guide pipe 21. The end of the guide pipe 21 is connected to a bent pipe 22, and the bent pipe 22 is embedded in the interior of the guide bin 15. The interior of the guide bin 15 is also provided with a propulsion groove 26, and the interior of the propulsion groove 26 is embedded with a filter plate 25 and a vibrating screen plate 24. The vibrating screen plate 24 is connected with a spring rod 23. The fan 13 is used to transport the flue gas, and the flue gas is transported to the interior of the guide pipe 21 through the air pipe 14, and then through the bent pipe 22 to the interior of the tower bin 11, and finally discharged through the separation plate 16. The bent pipe 22 is set in a U shape, and the outlet of the bent pipe 22 corresponds to the vibrating screen plate 24. The vibrating screen plate 24 is slidably connected to the interior of the guide bin 15, and a vibration motor is installed inside the guide bin 15. The vibration motor acts on the vibrating screen plate 24, causing the vibrating screen plate 24 to slide horizontally inside the guide bin 15;

[0041] After the flue gas enters the interior of the guide pipe 21, the heat is transferred to the guide pipe 21, and then the flue gas is transported to the interior of the bent pipe 22. The flue gas is finally sprayed onto the surface of the vibrating screen plate 24 through the bent pipe 22. The vibrating screen plate 24 can intercept some of the particulate matter in the flue gas. After being intercepted by the vibrating screen plate 24, some of the particulate matter will adhere to the vibrating screen plate 24. The rotation of the vibration motor drives the vibrating screen plate 24 to move left and right inside the propulsion groove 26. After moving, it is reset by the spring rod 23, and vibration is achieved at high frequency, which can eliminate the particulate matter attached to the vibrating screen plate 24. The particulate matter that is vibrated and sieved is finally deposited in the interior of the guide bin 15. After being filtered by the vibrating screen plate 24, the flue gas can be further purified by the filter plate 25. The particulate matter in the flue gas can be eliminated through the double purification of the vibrating screen plate 24 and the filter plate 25.

[0042] The flue gas that has been vibrated and screened eventually enters the interior of the tower bin 11, where the sulfide in the flue gas is eliminated through the adaptive component 3 inside the tower bin 11. The sulfur in the flue gas is eliminated through chemical reactions, reducing the impact of sulfide overflow on the environment.

[0043] When the flue gas enters the interior of the tower bin 11, it first passes through the lower filter plate 32. As the flue gas rises, the flue gas enters the interior of the lower filter plate 32 and the upper filter plate 34. The flue gas is guided by the partition plate 337 into the interior of the upper guide groove 333 and the lower guide groove 335, and is finally discharged through the conducting pipe 31, thereby achieving the purification and desulfurization of the flue gas.

[0044] The system of the traditional oxidation air volume regulating device detects that when the oxidation air volume increases, the high-speed flue gas rushes in concentratedly, resulting in poor flue gas purification effect. If the air volume is reduced, the flue gas flow rate slows down and the purification efficiency is reduced. In contrast, through the design of the adaptive component 3 and the regulating component 4, the flue gas path can be flexibly planned according to the actual air volume, the pressure in the absorption tower can be maintained stable, and the desulfurization chemical reaction efficiency can be improved.

[0045] An adaptive component 3 is embedded in the tower bin 11. The adaptive component 3 includes a lower filter plate 32, which is embedded in the tower bin 11. The top of the lower filter plate 32 is connected to a purification component 33. The purification component 33 includes a support frame 338. The top of the lower filter plate 32 is connected to the support frame 338. The top of the support frame 338 is connected to a lower cone 336. A separator 337 is embedded in the interior of the lower cone 336. The top of the lower cone 336 is connected to an upper cone 332. The top of the upper cone 332 is connected to a connecting rod 331. The top of the connecting rod 331 is connected to the upper filter plate 34. The top of the upper cone 332 and the connecting rod 331 are movably connected to each other to accommodate the rise and fall of the upper cone 332.

[0046] Upper cones 332 and lower cones 336 are evenly distributed between the upper filter plate 34 and the lower filter plate 32, and upper guide grooves 333 and lower guide grooves 335 are provided inside each group of upper cones 332 and lower cones 336. The outermost upper guide grooves 333 and lower guide grooves 335 are connected to the conducting pipe 31, and the bottom end of the conducting pipe 31 corresponds to the upper guide grooves 333 and lower guide grooves 335. The top end of the conducting pipe 31 is located at the bottom end of the separation plate 16. The upper cone 332 and the lower cone 336 are combined into a spindle shape. The upper cone 332 and the support frame 338 are both provided with cavities, and the cavity opened inside the support frame 338 is filled with lime water.

[0047] The support frame 338 is embedded with a lower guide groove 335, and the upper cone 332 is embedded with an upper guide groove 333. Both ends of the upper guide groove 333 and the lower guide groove 335 are provided with a fitting surface 334. The upper guide groove 333 and the lower guide groove 335 are movably connected. The upper cone 332 and the lower guide groove 335 are evenly distributed on the lower filter plate 32 in the horizontal and vertical directions. The separator 337 is embedded between the two groups of upper cones 332. The separator 337 is used to separate the longitudinally distributed upper cones 332. The separator 337 is divided into a dividing part, a propulsion part and a guiding part. The bottom end of the dividing part is arc-shaped. The dividing part is used to connect the two groups of separators 337. The top of the dividing part is connected with the propulsion part, and the top of the propulsion part is connected with the guide part. The guide part is set to an arc shape, and the top of the guide is embedded in the upper guide groove 333 and the lower guide groove 335.

[0048] After the flue gas is transported to the interior of the lower cone 336 through the partition 337, the interior of the support frame 338 is filled with lime water. When the flue gas is dispersed and blown into the lime water, the sulfur in the flue gas reacts with the lime water. In order to improve the reaction efficiency between the two, multiple groups of lower cones 336 and upper cones 332 are provided to prevent the flue gas from gathering together. By dispersing the flue gas and reacting after dispersion, the reaction will be more sufficient. In addition, an atomizer is provided inside the upper cone 332, which draws the lime water inside the lower cone 336 through a pipeline and then atomizes it. After atomization, the contact between the lime water and the sulfide can be increased, thereby accelerating the formation of the chemical reaction.

[0049] As the flue gas velocity increases, and the oxidation air volume subsequently rises, the atomizer expands the spray range and frequency, while simultaneously replenishing lime water through the pipeline. As the oxidation air volume increases, upper cone 332 descends, widening the air duct and reducing airflow resistance, preventing pressure buildup in the equipment and ensuring stable operation of fan 13. This dynamic adjustment allows the variable gas flow channel to become a "buffer zone" for oxidation air volume, allowing for flexible flue gas routing based on actual air volume, maintaining stable pressure within the absorption tower, and improving the efficiency of the desulfurization chemical reaction.

[0050] The interior of the upper cone 332 is connected to an adjustment component 4, which includes an insertion rod 41. The insertion rod 41 is embedded in the interior of the upper cone 332, and the insertion rod 41 is embedded in the interior of the endless belt 42. The outer surface of the endless belt 42 is connected to a resistance sheet 43. The inner side of the endless belt 42 is connected to two sets of transmission rollers, which are used to support the rotation of the endless belt 42. The endless belt 42 is connected to the interior of the upper cone 332 through the insertion rod 41. The bottom end of the endless belt 42 is embedded in the cavity opened in the lower cone 336. The bottom end of the resistance sheet 43 is immersed in the lime water filled in the cavity.

[0051] In addition, after the upper cone 332 rises, it will also drive the insertion rod 41 to rise. When the insertion rod 41 rises, it will drive the circulation belt 42 and the resistance plate 43 to rise. The circulation belt 42 and the resistance plate 43 are pulled up from the lime water, so that the lime water will adhere to the circulation belt 42. When the flue gas passes through the circulation belt 42, it can also be more fully contacted. As the oxidation air volume increases, the blowing action of the airflow acts on the resistance plate 43, and then the resistance plate 43 drives the circulation belt 42 to rotate, so that the contact position of the flue gas and the circulation belt 42 can be continuously changed, so that the flue gas can perfectly contact the circulation belt 42 that has just been attached to the lime water and react.

[0052] A method for using an oxidation air volume regulating device for a wet flue gas desulfurization absorption tower:

[0053] S1: The flue gas is first transported to the guide pipe 21 through the fan 13 and the air duct 14 to dissipate heat and cool down to prevent subsequent water evaporation;

[0054] S2: The particles are then sprayed onto the vibrating screen plate 24 through the bent tube 22 to intercept them, and the vibration motor helps to desorb them;

[0055] S3: The purified flue gas enters the tower bin 11, is dispersed into the lower cone 336 through the partition 337, and reacts with the lime water in the support frame 338. When the flue gas flow rate and air volume change, the upper cone 332 rises and falls to adjust the air duct, accompanied by the rotation of the circulation belt 42 and the resistance plate 43, dynamic contact is used for desulfurization.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wet flue gas desulfurization absorption tower oxidation air volume regulating device, comprising a tower bin (11), characterized in that: One side of the tower silo (11) is connected to an air inlet silo (12), a fan (13) is installed on the top surface of the air inlet silo (12), an air duct (14) is installed at the bottom end of the fan (13), the other side of the tower silo (11) is connected to a guide silo (15), and a separation plate (16) is embedded in the interior of the tower silo (11); An adaptive component (3) is embedded in the interior of the tower bin (11), the adaptive component (3) comprises a lower filter plate (32), the lower filter plate (32) is embedded in the interior of the tower bin (11), the top end of the lower filter plate (32) is connected to a purification component (33), the purification component (33) comprises a support frame (338), the top end of the lower filter plate (32) is connected to the support frame (338), the top end of the support frame (338) is connected to a lower cone (336), a separator (337) is embedded in the interior of the lower cone (336), the top end of the lower cone (336) is connected to an upper cone (332), the top end of the upper cone (332) is connected to a connecting rod (331), and the top end of the connecting rod (331) is connected to an upper filter plate (34); A lower guide groove (335) is embedded in the interior of the support frame (338), an upper guide groove (333) is embedded in the interior of the upper cone (332), and both ends of the upper guide groove (333) and the lower guide groove (335) are provided with a fitting surface (334), and the upper guide groove (333) and the lower guide groove (335) are movably connected; The interior of the upper cone (332) is connected to an adjustment component (4), and the adjustment component (4) includes an insertion rod (41). The interior of the upper cone (332) is embedded with an insertion rod (41), and the insertion rod (41) is embedded in the interior of the circulating belt (42). The outer surface of the circulating belt (42) is connected to a resistance sheet (43), and the inner side of the circulating belt (42) is connected to two groups of transmission rollers, and the two groups of transmission rollers are used to support the rotation of the circulating belt (42).

2. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 1, characterized in that: An air intake assembly (2) is embedded in the air intake bin (12), and the air intake assembly (2) includes a guide pipe (21). The air duct (14) and the guide pipe (21) are connected. The end of the guide pipe (21) is connected to a bent pipe (22), and the bent pipe (22) is embedded in the interior of the guide bin (15). A propulsion groove (26) is also provided in the interior of the guide bin (15). A filter plate (25) and a vibrating screen plate (24) are embedded in the propulsion groove (26), and a spring rod (23) is connected to the vibrating screen plate (24).

3. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 2, characterized in that: The fan (13) is used to transport the smoke. The smoke is transported to the inside of the guide pipe (21) through the air duct (14), then transported to the inside of the tower bin (11) through the bending pipe (22), and finally discharged through the separation plate (16).

4. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 3, characterized in that: The bent tube (22) is arranged in a U shape, the outlet of the bent tube (22) corresponds to the vibrating screen plate (24), the vibrating screen plate (24) is slidably connected to the inside of the guide bin (15), and a vibration motor is installed inside the guide bin (15), and the vibration motor acts on the vibrating screen plate (24), so that the vibrating screen plate (24) slides laterally inside the guide bin (15).

5. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 1, characterized in that: Upper cones (332) and lower cones (336) are evenly distributed between the upper filter plate (34) and the lower filter plate (32), and an upper guide groove (333) and a lower guide groove (335) are provided inside each group of upper cones (332) and lower cones (336). A conducting pipe (31) is connected to the outermost upper guide groove (333) and lower guide groove (335). The bottom end of the conducting pipe (31) corresponds to the upper guide groove (333) and the lower guide groove (335), and the top end of the conducting pipe (31) is located at the bottom end of the separation plate (16).

6. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 5, characterized in that: The upper cone (332) and the lower cone (336) are combined into a spindle shape. The upper cone (332) and the support frame (338) are both provided with cavities, and the cavity opened in the support frame (338) is filled with lime water.

7. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 1, characterized in that: The upper cones (332) and the lower guide grooves (335) are evenly distributed on the lower filter plate (32) in the transverse and longitudinal directions. The separator (337) is embedded between the two groups of upper cones (332). The separator (337) is used to separate the longitudinally distributed upper cones (332).

8. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 7, characterized in that: The separator (337) is divided into a dividing portion, a propulsion portion and a guiding portion. The bottom end of the dividing portion is arc-shaped. The dividing portion is used to connect two groups of separators (337). The top end of the dividing portion is connected to the propulsion portion. The top end of the propulsion portion is connected to the guiding portion. The guiding portion is arranged in an arc shape. The top end of the guiding portion is embedded in the interior of the upper guide groove (333) and the lower guide groove (335).

9. The oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to claim 1, characterized in that: The circulating belt (42) is connected to the interior of the upper cone (332) through the insertion rod (41), the bottom end of the circulating belt (42) is embedded in the cavity opened in the lower cone (336), and the bottom end of the resistance sheet (43) is immersed in the lime water filled in the cavity.

10. A method for using the oxidation air volume regulating device for a wet flue gas desulfurization absorption tower according to any one of claims 1 to 9, characterized in that: S1: First, the smoke is transported to the guide pipe (21) through the fan (13) and the air duct (14) to dissipate heat and cool down to prevent subsequent water evaporation; S2: The particles are then sprayed onto the vibrating screen plate (24) through the bent tube (22) to intercept the particles, and the vibration motor helps to desorb them; S3: The purified flue gas enters the tower bin (11), is dispersed into the lower cone (336) through the partition (337), and reacts with the lime water in the support frame (338). When the flue gas flow rate and air volume change, the upper cone (332) rises and falls to adjust the air duct, accompanied by the rotation of the circulation belt (42) and the resistance plate (43), and dynamic contact is carried out for desulfurization.

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