Device and method for adjusting oxidation air volume of wet flue gas desulfurization absorption tower

Abstract

The invention discloses a device and a method for adjusting the oxidation air volume of a wet flue gas desulfurization absorption tower, relates to the technical field of wet flue gas desulfurization, and aims to solve the problems of low utilization efficiency of an absorbent in the absorption tower, incomplete sulfite oxidation and frequent scaling and blockage of subsequent equipment due to incapability of ingeniously changing a gas channel according to the flow rate and sulfur content of flue gas. According to the invention, a plurality of groups of fusiform upper and lower cones are matched with partition sheets, so that the flue gas can be flexibly dispersed according to the air volume and the flue gas flow velocity, the flue gas is prevented from gathering, the flue gas is enabled to be in uniform contact with lime water, the chemical reaction is more sufficient, and when the oxidation air volume fluctuates, the oxidation efficiency is improved. The upper cone can automatically lift, precisely widen or contract an air duct, maintain the pressure in the tower stable, ensure the stable operation of a fan, be linked with the upper cone, continuously change the flue gas contact position, adhere fresh lime water and repeatedly capture sulfides, and greatly improve the desulfurization efficiency and stability.

Description

Technical Field

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

[0002] In today's industrial production field, especially in energy-intensive industries such as thermal power, steel, and chemicals, the combustion process will produce a large amount of sulfur-containing flue gas. If it is directly discharged into the atmosphere without effective treatment, the sulfides such as sulfur dioxide will cause serious environmental pollution problems such as acid rain and haze, causing immeasurable damage to the ecosystem, buildings, and human health. Therefore, wet flue gas desulfurization technology, as the mainstream desulfurization method, is widely used in various industrial waste gas purification processes.

[0003] In this regard, publication number CN113230845A discloses a device for adjusting the inlet pressure-stabilizing swirl air volume of a wet flue gas desulfurization oxidation fan. The invention has a large adjustment range and excellent adjustment performance. Through the air inlet housing, the fairing, the blades and the channel formed between the air inlet housing and the fairing, it has a unique variable geometry flow channel, which can effectively reduce the impact of the airflow and the 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 different sulfur contents. High sulfur flue gas means that stronger gas-liquid reaction efficiency, more abundant oxidation air volume and a gas-liquid contact form suitable for it are required. Due to the lack of a flexible adjustment mechanism for the lime water coverage area, it is impossible to cleverly change the gas channel according to the flue gas flow rate and flue gas sulfur content, so that the chemical reaction in the absorption tower is always in a "sub-healthy" state. The absorbent utilization efficiency is low, the sulfite oxidation is incomplete, and subsequent equipment scaling and blockage occur frequently, which seriously interferes with the normal operation of the system and adds a lot of additional maintenance costs and downtime for maintenance.

[0005] In view of the above problems, a device and method for regulating 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 object, 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 bin, one side of the tower bin is connected to an air inlet bin, a fan is installed on the top surface of the air inlet bin, an air duct is installed at the bottom end of the fan, the other side of the tower bin is connected to a guide bin, and a separation plate is embedded in the interior of the tower bin;

[0008] An adaptive component is embedded in the tower bin, the adaptive component includes a lower filter plate, the lower filter plate is embedded in 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 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 an upper filter plate;

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

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

[0011] Preferably, an air inlet assembly is embedded in the air inlet bin, and the air inlet 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 guide bin, and a propulsion groove is also provided in 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 smoke, and the smoke is transported to the inside of the guide pipe through the air duct, and then transported to the inside of the tower bin through the bending pipe, and finally discharged through the separation plate.

[0013] Preferably, the bending tube is arranged to be U-shaped, the bending 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 laterally 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 conducting pipes are connected to the outermost upper guide grooves and lower guide grooves, and the bottom ends of the conducting pipes correspond to the upper guide grooves and the lower guide grooves, and the top ends of the conducting pipes 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 cavities are provided inside the upper cone and the support frame, and the cavity opened 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, and 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 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 arranged in an arc shape. The top end of the guiding part is embedded in 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 a cavity opened in the lower cone, and the bottom end of the resistance sheet is immersed in 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: First, the flue gas is 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 vibrating motor helps them to desorb;

[0022] S3: The purified flue gas enters the tower bin, is dispersed into the lower cone through the partition, and 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, dynamic contact is used for desulfurization.

[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 to prevent flue gas aggregation, so that it can be evenly contacted with lime water and the chemical reaction is more complete. Moreover, when the oxidation air volume fluctuates, the upper cone can automatically rise and fall to accurately widen or shrink the air duct, maintain the pressure in the tower stable, ensure the smooth operation of the fan, and work with the upper cone to continuously change the flue gas contact position, adhere to fresh lime water, and repeatedly capture sulfides, 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 It is a schematic diagram of the structure of the tower bin and the separation plate of the present invention;

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the tower bin of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the air inlet assembly of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the lower filter plate and the upper filter plate of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the connecting rod of the present invention;

[0031] Figure 7 It is a front view structural schematic diagram of the upper cone and the lower cone of the present invention;

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

[0033] Fig. 9 It is a schematic diagram of the structure of the upper cone and the lower cone of the present invention in an unfolded state;

[0034] Fig.10 It is a schematic diagram of the structure 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, conduction 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, plug rod; 42, circulation belt; 43, resistance plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work 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 in conjunction with the accompanying drawings.

[0038] Combination Figure 1-Figure 10 The present invention discloses 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 is connected to an air inlet bin 12, a fan 13 is installed on the top surface of the air inlet bin 12, an air duct 14 is installed at the bottom end of the fan 13, the other side of the tower bin 11 is connected to a guide bin 15, and a separation plate 16 is embedded in the interior of the tower bin 11;

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

[0040] An air inlet assembly 2 is embedded in the air inlet bin 12, and the air inlet assembly 2 includes a guide pipe 21, and the air duct 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 guide bin 15. A propulsion groove 26 is also provided in the guide bin 15, and a filter plate 25 and a vibrating screen plate 24 are embedded in the propulsion groove 26. A spring rod 23 is connected to the vibrating screen plate 24. 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, and then transported to the inside of the tower bin 11 through the bent pipe 22, 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 inside of the guide bin 15. A vibration motor is installed in the guide bin 15, and the vibration motor acts on the vibrating screen plate 24, so that the vibrating screen plate 24 slides horizontally in the guide bin 15.

[0041] After the smoke enters the interior of the guide pipe 21, the heat is transferred to the guide pipe 21, and then the smoke is transported to the interior of the bent pipe 22. The smoke is finally sprayed to the surface of the vibrating screen plate 24 through the bent pipe 22. The vibrating screen plate 24 can intercept some particles in the smoke. After being intercepted by the vibrating screen plate 24, some particles 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, so that the particles attached to the vibrating screen plate 24 can be eliminated. The particles that are vibrated and screened are finally deposited in the interior of the guide bin 15. After being filtered by the vibrating screen plate 24, the smoke can be further purified by the filter plate 25. The particles in the smoke can be eliminated by two purifications 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, thereby 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 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. By 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, and the adaptive component 3 includes a lower filter plate 32, and the lower filter plate 32 is embedded in the tower bin 11. The top of the lower filter plate 32 is connected to a purification component 33, and the purification component 33 includes a support frame 338, and the top of the lower filter plate 32 is connected to the support frame 338, and the top of the support frame 338 is connected to a lower cone 336, and a separator 337 is embedded in the lower cone 336. The top of the lower cone 336 is connected to an upper cone 332, and the top of the upper cone 332 is connected to a connecting rod 331, and the top of the connecting rod 331 is connected to an upper filter plate 34, wherein the top of the upper cone 332 and the connecting rod 331 are movably connected, and the purpose is to adapt to the rise and fall of the upper cone 332;

[0046] The upper cone 332 and the lower cone 336 are evenly distributed between the upper filter plate 34 and the lower filter plate 32, and the upper guide groove 333 and the lower guide groove 335 are arranged inside each group of the upper cone 332 and the lower cone 336, and the outermost upper guide groove 333 and the lower guide groove 335 are connected with the conducting pipe 31, and 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, and the upper cone 332 and the lower cone 336 are combined into a spindle shape, and the upper cone 332 and the support frame 338 are provided with a cavity inside, and the cavity opened inside the support frame 338 is filled with lime water.

[0047] A lower guide groove 335 is embedded in the support frame 338, and an upper guide groove 333 is embedded in the upper cone 332. Both ends of the upper guide groove 333 and the lower guide groove 335 are provided with fitting surfaces 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 to the propulsion part. The top of the propulsion part is connected to the guiding part. The guiding part is set to an arc shape. The top of the guiding part 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, and the lime water inside the lower cone 336 is sucked through a pipeline and then atomized. After atomization, the contact between the lime water and the sulfide can be increased, and the formation of the chemical reaction can be accelerated.

[0049] When the flue gas velocity increases and the oxidation air volume increases, the atomizer increases the spray range and frequency, and lime water is added through the pipeline simultaneously. When the oxidation air volume value increases, the upper cone 332 descends to widen the air duct, reduce the air flow resistance, prevent the equipment from being blocked, and ensure the stable operation of the fan 13. Through this dynamic adjustment, the variable gas flow channel becomes a "buffer zone" for the oxidation air volume, and the flue gas path is flexibly planned according to the actual air volume, so as to maintain the pressure in the absorption tower stable and improve the efficiency of the desulfurization chemical reaction.

[0050] The upper cone 332 is internally connected with an adjustment component 4, which includes an insertion rod 41, the upper cone 332 is internally embedded with the insertion rod 41, the insertion rod 41 is embedded in the inner part of the circulating belt 42, the outer surface of the circulating belt 42 is connected with a resistance sheet 43, the inner side of the circulating belt 42 is connected with two sets of transmission rollers, the two sets of transmission rollers are used to support the rotation of the circulating belt 42, the circulating belt 42 is connected to the inner part 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;

[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 also 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 of the airflow acts on the resistance plate 43, and then the resistance plate 43 drives the circulation belt 42 to rotate. In this way, the contact position of the flue gas and the circulation belt 42 can be continuously changed, so that the flue gas can perfectly contact and react with the circulation belt 42 that has just been attached with lime water.

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

[0053] 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;

[0054] S2: The particles are then sprayed onto the vibrating screen plate 24 through the bending tube 22 to intercept the particles, 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 article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although 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 the embodiments without departing from the principles and spirit of the present invention, and the scope of the present 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 bin (11) is connected to an air inlet bin (12), a fan (13) is installed on the top surface of the air inlet bin (12), an air duct (14) is installed at the bottom end of the fan (13), the other side of the tower bin (11) is connected to a guide bin (15), and a separation plate (16) is embedded in the interior of the tower bin (11); An adaptive component (3) is embedded in the tower bin (11), the adaptive component (3) comprises a lower filter plate (32), the lower filter plate (32) is embedded in 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 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 support frame (338), an upper guide groove (333) is embedded in the upper cone (332), both ends of the upper guide groove (333) and the lower guide groove (335) are provided with abutment surfaces (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 the 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), the air intake assembly (2) comprises a guide pipe (21), the air pipe (14) and the guide pipe (21) are connected, the end of the guide pipe (21) is connected to a bent pipe (22), the bent pipe (22) is embedded in the guide bin (15), a propulsion groove (26) is provided in 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 is 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 device for adjusting the oxidation air volume of 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), 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 horizontally inside the guide bin (15).

5. The device for adjusting the oxidation air volume of a wet flue gas desulfurization absorption tower according to claim 1, characterized in that: An upper cone (332) and a lower cone (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 the upper cone (332) and the lower cone (336), and a conducting pipe (31) is connected to the outermost upper guide groove (333) and the lower guide groove (335), and 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 device for adjusting the oxidation air volume of 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 inside. The cavity opened inside the support frame (338) is filled with lime water.

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

9. The device for adjusting the oxidation air volume of 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 an insertion rod (41), the bottom end of the circulating belt (42) is embedded in a cavity opened inside 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 of 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 evaporation of water; S2: The particles are then sprayed onto the vibrating screen plate (24) through the bending 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) moves up and down to adjust the air duct, accompanied by the rotation of the circulation belt (42) and the resistance plate (43), and desulfurization is carried out by dynamic contact.

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