Sulfuric acid tail gas desulfurization device and method based on linkage air regulation

Abstract

The invention relates to the technical field of tail gas treatment equipment, in particular to a sulfuric acid tail gas desulfurization device and method based on linkage air volume regulation, the sulfuric acid tail gas desulfurization device comprises a spray tower main body, an upper group of flow guide pieces and a lower group of flow guide pieces are arranged in the spray tower main body, and each flow guide piece is composed of a flow equalizing layer and a flow disturbing layer arranged above the flow equalizing layer; the air inlet pipe is arranged on a barrel at the bottom of the spray tower main body; a small-sized wind driven generator is arranged in the air inlet pipe; an upper spraying assembly and a lower spraying assembly are further arranged in the spraying tower body, each spraying assembly comprises a water body synergistic ring, the water body synergistic rings are connected with external liquid medicine through pipelines, a plurality of communicating pipes are fixedly installed on the inner annular side faces of the water body synergistic rings, spraying pipes are fixedly installed at the tail ends of the communicating pipes, and spraying heads are detachably installed at the ends of the spraying pipes; a blocking plate is arranged in the spraying pipe and is adjusted through a waterproof motor and a linkage structure. The waste gas treatment device facilitates uniform and sufficient treatment of waste gas and facilitates improvement of the treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment equipment, and more specifically, to a sulfuric acid tail gas desulfurization device and method based on linkage air volume regulation. Background Art

[0002] During the production of sulfuric acid, a large amount of tail gas containing pollutants such as sulfur dioxide is generated. If these tail gases are directly discharged without effective treatment, they will not only cause serious pollution to the atmospheric environment, leading to environmental problems such as acid rain, but also result in waste of sulfur resources. With the increasingly strict environmental protection standards, higher requirements are also put forward for the deep treatment technology of sulfuric acid tail gas; currently, there are various types of sulfuric acid tail gas desulfurization technologies, and the wet method technology, which is more widely used, is based on the absorption principle. The sulfuric acid tail gas and the liquid used as the desulfurizing agent are in direct gas-liquid contact absorption to remove sulfur dioxide in the tail gas, thereby achieving the desulfurization effect.

[0003] The utility model patent with the authorization announcement number CN219482182U discloses a sulfuric acid tail gas desulfurization device, which relates to the technical field of tail gas treatment, including: a box body; an air inlet pipe, which is connected to the top of the box body and is used to convey the sulfuric acid-containing tail gas to the box body; a spraying device, which is arranged at the top of the inner cavity of the box body and is used to spray hydrogen peroxide into the box body; a blowing device, which is arranged on both sides of the box body and is used to blow air into the box body; a filtering device, which is arranged inside the box body and is used to filter impurities in the tail gas; an exhaust pipe, which is connected to the bottom of the box body and is used to discharge the treated tail gas in the box body. By using the sulfuric acid tail gas desulfurization device provided by this utility model, various treatment operations can be carried out on the sulfuric acid tail gas at the same time, and the desulfurization efficiency of the sulfuric acid tail gas can be improved.

[0004] The utility model patent with the authorization announcement number CN217855368U discloses a sulfuric acid tail gas desulfurization device, including: a tank body, and an air inlet pipe is fixed below one side of the tank body; a tank cover arranged at the top of the tank body, and a gas transmission pipe is connected to the top of the tank cover; a fixed frame arranged at the top inside the tank body, and an activated carbon filling layer is arranged inside the fixed frame; a water pump fixed on one side of the tank body, one end of the water pump is connected to a water tank through a pipeline, the other end of the water pump is fixed with a water delivery pipe, and one end of the water delivery pipe extends into the tank body and is connected to a U-shaped pipe. Through the cooperation of structures such as a support ring, a baffle, a slider, and a first spring, the fixed frame can be quickly restricted between the support ring and the baffle, and the limit can be released by pushing the baffle, so as to quickly lift the fixed frame, and then it is convenient to remove the activated carbon filling layer, with simple and convenient operation, greatly improving the work efficiency.

[0005] The invention patent with the authorization announcement number CN111482055A discloses an efficiency-enhancing wear-resistant ring, which includes a spray tower main body. A main pipe is arranged inside the spray tower main body. One side of the main pipe is connected with a spray head. A side-attached steel plate is welded to the inner wall of the spray tower main body. A wear-resistant steel plate is welded to the bottom of the side-attached steel plate. The wear-resistant steel plate is perpendicularly connected to the side-attached steel plate. A grindstone layer is attached to the upper side of the wear-resistant steel plate. A wear-resistant grinding wheel piece is arranged on one side of the side-attached steel plate. After the efficiency-enhancing wear-resistant ring is set, the erosion of the tower wall can be effectively avoided. The efficiency-enhancing wear-resistant ring adopts a main material with unique strong wear resistance and corrosion resistance characteristics, and is attached to the tower wall and arranged vertically along the tower wall. This method not only solves the problem of acid corrosion in the spray area, but importantly solves the direct erosion of the spray on the tower wall and the indirect erosion of the slurry secondary impact, ensures the high coverage rate of the spray at the edge of the absorption tower and the safe operation inside the tower, and realizes the anti-corrosion and maintenance-free of the spray area.

[0006] Although the above technical solution has corresponding advantages, at present, most spray towers still have some deficiencies when treating sulfuric acid tail gas. For example, there is a large range of high-speed air flow near the inner wall surface of the tower. This part of the air flow stays in the tower for a short time, cannot fully contact with the slurry, the spray coverage rate on the wall surface is low, and the resistance is small. Therefore, the flue gas volume is large and the flue gas escapes, resulting in a reduction in the desulfurization efficiency. In view of this, we propose a sulfuric acid tail gas desulfurization device and method based on linkage air volume regulation. Summary of the Invention

[0007] The purpose of the present invention is to provide a sulfuric acid tail gas desulfurization device and method based on linkage air volume regulation to solve the defects mentioned in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solutions: A sulfuric acid tail gas desulfurization device based on linkage air volume regulation includes a spray tower main body. Two sets of symmetrically arranged flow guiding members for guiding waste gas are arranged inside the spray tower main body. The flow guiding member is composed of a uniform flow layer and a turbulence layer arranged above the uniform flow layer. It also includes an intake pipe arranged on the bottom cylinder of the spray tower main body. A small wind power generator is arranged inside the intake pipe. The air flow in the intake pipe drives the small wind power generator to generate electricity. Two symmetrically arranged spray components are also arranged inside the spray tower main body. The spray component includes a water body efficiency-enhancing ring. The water body efficiency-enhancing ring is connected to the external liquid medicine through a pipeline. A plurality of conduction pipes are fixedly installed on the inner annular side surface of the water body efficiency-enhancing ring. The end of the conduction pipe is fixedly installed with a spray pipe. The end of the spray pipe is detachably installed with a spray head. A plugging plate for adjusting the liquid inflow in the conduction pipe is arranged inside the spray pipe. The plugging plate is adjusted through a waterproof motor and a linkage structure.

[0009] Preferably, an inner treatment chamber is provided inside the spray tower main body, and the flow equalizing layer, the flow disturbing layer and the spray assembly are all located inside the inner treatment chamber.

[0010] Preferably, the small wind turbine generates electricity for the waterproof motor, and the water body efficiency enhancement ring is located above the corresponding flow disturbing layer; This setting can perform spray treatment operations above the flow disturbing layer.

[0011] Preferably, an air outlet pipe is fixedly installed at the top of the spray tower main body, and two symmetrical observation cylinders are fixedly installed on the cylinder body of the spray tower main body. A transparent viewing window is flange-connected to the end of the observation cylinder.

[0012] Preferably, a sewage discharge pipe is fixedly installed on the bottom cylinder body of the spray tower main body, and a sewage discharge valve is fixedly installed on the sewage discharge pipe.

[0013] Preferably, a delivery pipe is fixedly installed at the air outlet end of the air inlet pipe, and an air outlet hood is fixedly installed at the end of the delivery pipe. The hood opening of the air outlet hood faces downward.

[0014] Preferably, a protective inner shell for protecting the electronic devices supporting the small wind turbine is fixedly installed on the inner wall of the spray tower main body, and a controller is fixedly installed outside the spray tower main body.

[0015] Preferably, a distribution pipe is fixedly installed at the water inlet end of the water body efficiency enhancement ring. Outlet pipes are fixedly installed at the ends of the upper and lower distribution pipes. A delivery pump is fixedly installed at the end of the outlet pipe, and a suction pipe is fixedly installed at the water inlet end of the delivery pump.

[0016] Preferably, according to the present invention, a plurality of flow guiding short plates and a plurality of flow guiding long plates are fixedly installed on the inner wall of the lower half of the spray pipe. The flow guiding short plates are located above the corresponding flow guiding long plates. The blocking plate is arranged at the connection between the spray pipe and the conduction pipe. The top end of the blocking plate is fixedly installed with a horizontal sliding plate located inside the spray pipe and slidably connected with the spray pipe. On the upper surface of one end plate body of the horizontal sliding plate, a vertical sliding rod is fixedly installed. The top end of the vertical sliding rod is fixedly installed with a guiding plate. The guiding plate is located inside the spray pipe and slidably connected with the spray pipe. A spring is fixedly installed at the top end of the guiding plate. The waterproof motor is fixedly installed inside the top pipe body of the spray pipe. The end of the output shaft of the waterproof motor is fixedly installed with a connecting rod. The end of the connecting rod is hinged with an arc-shaped rod. The end of the arc-shaped rod is fixedly installed at the top end of the spring. A fixed convex block is fixedly installed on the inner wall of the top pipe body of the spray pipe. The bottom end of the fixed convex block is fixedly installed with an arc-shaped plate. The arc-shaped rod rotates while fitting on the inner side surface of the arc-shaped plate to drive the spring to move; This setting can drive the movement of the blocking plate, realize the adjustment of the blocking area of the blocking plate at the conduction pipe part, and further realize the adjustment of the amount of liquid medicine flowing out along the conduction pipe.

[0017] In addition, the present invention also provides a sulfuric acid tail gas desulfurization method based on linkage air volume adjustment, using the above-mentioned sulfuric acid tail gas desulfurization device based on linkage air volume adjustment, which specifically includes the following steps: S1. Exhaust gas introduction: The sulfuric acid tail gas enters the spray tower main body through the intake pipe. The air flow in the intake pipe drives the small wind turbine to generate electricity, and the generated electric energy is used to supply the waterproof motor. The exhaust gas is downwardly introduced into the inner treatment chamber of the spray tower main body through the conveying pipe and the air outlet hood; S2. Flow guiding and uniform distribution: After the exhaust gas enters the inner treatment chamber, it first passes through the flow guiding member below. The flow guiding member is composed of a flow equalizing layer and a flow disturbing layer. The flow equalizing layer makes the exhaust gas evenly distributed, and the flow disturbing layer disrupts the flow direction of the exhaust gas, increasing the contact area between the exhaust gas and the subsequent sprayed liquid medicine; S3. Spray desulfurization: The transfer pump extracts the external liquid medicine through the suction pipe, transports it to the water body efficiency enhancement ring through the water outlet pipe and the uniform distribution pipe. The liquid medicine enters the spray pipe through the conduction pipe. The waterproof motor is started, and its output shaft drives the connecting rod to rotate. The arc-shaped rod at the end of the connecting rod rotates while fitting on the inner side surface of the arc-shaped plate on the fixed convex block, driving the spring to move. Then, the position of the blocking plate is adjusted through the guiding plate, the vertical sliding rod and the horizontal sliding plate, controlling the liquid inlet amount of the conduction pipe. Finally, the liquid medicine is sprayed out through the nozzle, fully contacting the exhaust gas for desulfurization reaction. The flow guiding short plates and flow guiding long plates in the spray pipe guide the flow of the liquid medicine; S4. Secondary treatment and discharge of spray desulfurization: The waste gas treated by the lower spray assembly continues to rise, and then passes through the upper flow guide and spray assembly again for secondary desulfurization treatment. The treated waste gas is discharged through the air outlet pipe at the top of the spray tower main body. S5. Sewage discharge and monitoring: The waste liquid generated during the desulfurization process is discharged through the sewage pipe at the bottom of the spray tower main body. The sewage valve on the sewage pipe can control the sewage discharge operation. The operator can observe the internal desulfurization situation through the observation cylinder and transparent window on the main body cylinder of the spray tower.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By arranging two sets of symmetrical flow guides up and down, the uniform flow layer in which makes the waste gas evenly distributed, and the turbulent flow layer disrupts the flow direction of the waste gas. At the same time, it cooperates with the two symmetrical spray assemblies up and down for secondary desulfurization treatment, which can effectively avoid the problem of low desulfurization efficiency caused by the short residence time of the high-speed gas flow near the inner wall of the tower and the insufficient contact with the slurry, enabling the waste gas to fully contact the spray liquid medicine, achieving efficient desulfurization of sulfuric acid tail gas, and achieving the purpose of significantly improving the desulfurization effect.

[0019] 2. The present invention uses the air flow in the air inlet pipe to drive a small wind turbine to generate electricity and supply the electric energy for the waterproof motor to use, realizing the self-sufficiency of part of the electricity consumption of the device and reducing the external energy consumption. At the same time, through the adjustment of the blocking plate in the spray pipe by the waterproof motor and the linkage structure, the liquid inlet volume of the conduction pipe can be controlled according to actual needs, avoiding waste of liquid medicine, and achieving the effects of energy conservation and consumption reduction and reducing the operation cost.

[0020] 3. The present invention is equipped with an observation cylinder and a transparent window, which is convenient for the operator to observe the internal desulfurization situation in real time; the arrangement of the sewage pipe and the sewage valve facilitates the discharge and treatment of the desulfurization waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the cross-sectional view of the present invention; Figure 3 is one of the partial structural schematic diagrams of the present invention; Figure 4 is the other partial structural schematic diagram of the present invention; Figure 5 is the present invention Figure 4 the enlarged view of part A in; The meanings of the various reference numerals in the figure are as follows: 1. Spray tower main body; 10. Exhaust pipe; 11. Observation cylinder; 12. Transparent window; 13. Drain pipe; 131. Drain valve; 14. Intake pipe; 15. Small wind turbine; 16. Delivery pipe; 161. Air outlet hood; 17. Protective inner shell; 18. Controller; 19. Inner treatment chamber; 2. Flow equalizing layer; 20. Turbulence layer; 3. Delivery pump; 30. Suction pipe; 31. Outlet pipe; 32. Distribution pipe; 4. Spray assembly; 40. Water body enhancement ring; 41. Conducting pipe; 42. Spray pipe; 421. Flow guiding short board; 422. Flow guiding long board; 43. Nozzle; 44. Sealing plate; 441. Horizontal sliding plate; 442. Vertical sliding rod; 443. Guide plate; 45. Spring; 46. Fixed convex block; 461. Arc plate; 47. Waterproof motor; 471. Connecting rod; 472. Arc rod. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution: a sulfuric acid tail gas desulfurization device based on linkage air volume adjustment, including a spray tower main body 1. Inside the spray tower main body 1, there are two sets of symmetrically arranged flow guiding members for guiding waste gas up and down. The flow guiding members are composed of a flow equalizing layer 2 and a turbulence layer 20 arranged above the flow equalizing layer 2. The flow equalizing layer 2 is a honeycomb structure, and the turbulence layer 20 is made by staggering and stacking multiple honeycomb plates up and down, so that the waste gas entering the inner treatment chamber 19 of the spray tower main body 1 is first evenly distributed by the flow equalizing layer 2, and then the flow direction is disrupted by the turbulence layer 20, effectively increasing the contact area between the waste gas and the subsequent spray liquid medicine, enabling the waste gas to react more fully with the liquid medicine, thereby significantly improving the desulfurization efficiency; As Figure 2 shown, it further includes an intake pipe 14 provided on the bottom cylinder of the spray tower main body 1. A small wind turbine 15 is provided inside the intake pipe 14. The air flow inside the intake pipe 14 drives the small wind turbine 15 to generate electricity. The magnitude of the air volume inside the intake pipe 14 can affect the power generation efficiency of the small wind turbine 15.

[0025] Utilizing the air flow inside the intake pipe 14 to drive power generation, the generated electric energy is supplied for the waterproof motor 47 to use, achieving self - sufficiency in part of the power consumption of the device, reducing the consumption of external energy, achieving the purpose of energy conservation and consumption reduction, and at the same time reducing the operating cost.

[0026] In this embodiment, two symmetrical spray components 4 are further provided inside the spray tower main body 1. The spray component 4 includes a water body efficiency - enhancing ring 40. The water body efficiency - enhancing ring 40 is an existing conventional technology and will not be elaborated here. The water body efficiency - enhancing ring 40 is connected to the external liquid medicine through a pipeline. A plurality of conduction pipes 41 are fixedly installed on the inner circumferential side of the water body efficiency - enhancing ring 40. The end of the conduction pipe 41 is fixedly installed with a spray pipe 42. The end of the spray pipe 42 is detachably installed with a nozzle 43. A blocking plate 44 for adjusting the liquid inflow volume in the conduction pipe 41 is provided inside the spray pipe 42. The blocking plate 44 is adjusted through the waterproof motor 47 and a linkage structure. The liquid medicine is sprayed out through the conduction pipe 41, the spray pipe 42 and the nozzle 43 to perform desulfurization treatment on the waste gas. By adjusting the blocking plate 44 through the waterproof motor 47 and the linkage structure, the liquid inflow volume of the conduction pipe 41 can be flexibly controlled according to actual needs, avoiding waste of liquid medicine, further improving the rationality and economy of the use of liquid medicine in the desulfurization process, and ensuring the stability of the desulfurization effect.

[0027] As Figure 2 shown, an internal treatment chamber 19 is provided inside the spray tower main body 1. The uniform flow layer 2, the turbulence layer 20 and the spray component 4 are all located inside the internal treatment chamber 19, providing a relatively closed and stable space environment for operations such as guiding the waste gas and spray desulfurization, enabling each component to work together, ensuring the orderly progress of the desulfurization process, reducing the interference of external factors on the desulfurization process, and improving the overall operation reliability of the device.

[0028] As Figure 2 shown, the power generated by the small wind turbine 15 is used to supply the waterproof motor 47. The water body efficiency - enhancing ring 40 is located above the corresponding turbulence layer 20. This setting enables the waste gas above the turbulence layer 20 to be sprayed in a timely manner after the turbulence layer 20 disrupts the flow direction of the waste gas, further increasing the contact opportunity between the waste gas and the liquid medicine, strengthening the desulfurization effect, and making the desulfurization process more efficient.

[0029] As Figure 1 and Figure 2As shown in the figure, an exhaust pipe 10 is fixedly installed at the top of the spray tower main body 1, ensuring the integrity of the waste gas treatment process; two symmetrically arranged observation cylinders 11 are fixedly installed on the cylinder body of the spray tower main body 1, and a transparent window 12 is flange-connected to the end of the observation cylinder 11, which is convenient for operators to observe the desulfurization situation in the internal treatment chamber 19 in real time, facilitating timely problem detection and adjustment, realizing effective monitoring and management of the desulfurization process, and improving the safety and stability of equipment operation.

[0030] As Figure 1 shown in the figure, a sewage pipe 13 is fixedly installed on the bottom cylinder of the spray tower main body 1, and a sewage valve 131 is fixedly installed on the sewage pipe 13, providing a discharge path for the waste liquid generated during the desulfurization process. By controlling the sewage valve 131, the sewage discharge operation can be conveniently carried out, avoiding the accumulation of waste liquid in the device, which affects the desulfurization effect and the normal operation of the equipment, ensuring the cleanliness of the internal environment of the device, and prolonging the service life of the equipment.

[0031] As Figure 2 shown in the figure, a delivery pipe 16 is fixedly installed at the gas outlet end of the inlet pipe 14, and an air outlet hood 161 is fixedly installed at the end of the delivery pipe 16. The hood opening of the air outlet hood 161 faces downward, which can more effectively introduce the waste gas into the bottom of the internal treatment chamber 19 of the spray tower main body 1, enabling the waste gas to fully interact with the flow guiding component and the spray component during the rising process, optimizing the waste gas introduction path, ensuring the reasonable flow of the waste gas in the device, and improving the waste gas treatment efficiency.

[0032] As Figure 2 shown in the figure, a protective inner shell 17 for protecting the electronic devices supporting the small wind turbine 15 inside is fixedly installed on the inner wall of the spray tower main body 1, preventing them from being eroded by waste gas, liquid medicine, etc., ensuring the normal operation and service life of the electronic devices; a controller 18 is fixedly installed outside the spray tower main body 1. The external controller 18 is convenient for operators to control and adjust the operation of the device, realizing the convenience of equipment operation and improving the overall performance and use experience of the device.

[0033] In addition, a distribution pipe 32 is fixedly installed at the water inlet end of the water body efficiency enhancement ring 40. Outlet pipes 31 are fixedly installed at the ends of the upper and lower distribution pipes 32. A delivery pump 3 is fixedly installed at the end of the outlet pipe 31. A suction pipe 30 is fixedly installed at the water inlet end of the delivery pump 3. The delivery pump 3 extracts the external liquid medicine through the suction pipe 30 and evenly delivers it to the water body efficiency enhancement ring 40 through the outlet pipe 31 and the distribution pipe 32, ensuring the stable and uniform supply of the liquid medicine to the spray component 4, providing a reliable liquid medicine guarantee for the continuous and efficient desulfurization process.

[0034] As Figure 4As shown, a plurality of diversion short plates 421 and a plurality of diversion long plates 422 are fixedly installed on the inner wall of the lower half of the spray pipe 42. The diversion short plates 421 are located above the corresponding diversion long plates 422, guiding the flow of the liquid medicine, making the spraying of the liquid medicine more uniform, and improving the contact effect between the liquid medicine and the waste gas.

[0035] In this embodiment, the plugging plate 44 is arranged at the connection between the spray pipe 42 and the conduction pipe 41. A horizontal sliding plate 441 fixedly installed in the spray pipe 42 and slidably connected to the spray pipe 42 is fixedly installed at the top end of the plugging plate 44. A vertical sliding rod 442 is fixedly installed on the upper surface of the plate body at one end of the horizontal sliding plate 441. A guiding plate 443 is fixedly installed at the top end of the vertical sliding rod 442. The guiding plate 443 is located in the spray pipe 42 and is slidably connected to the spray pipe 42. A spring 45 is fixedly installed at the top end of the guiding plate 443. The waterproof motor 47 is fixedly installed in the top pipe body of the spray pipe 42. A connecting rod 471 is fixedly installed at the end of the output shaft of the waterproof motor 47. An arc-shaped rod 472 is hinged at the end of the connecting rod 471. The end of the arc-shaped rod 472 is fixedly installed at the top end of the spring 45. A fixed convex block 46 is fixedly installed on the inner wall of the top pipe body of the spray pipe 42. An arc-shaped plate 461 is fixedly installed at the bottom end of the fixed convex block 46. The arc-shaped rod 472 rotates while fitting on the inner side surface of the arc-shaped plate 461 to drive the spring 45 to move. By driving the arc-shaped rod 472 to rotate on the inner side surface of the arc-shaped plate 461 through the waterproof motor 47, the spring 45 is driven to move, thereby adjusting the position of the plugging plate 44, achieving precise control of the liquid medicine inflow volume of the conduction pipe 41, flexibly adjusting the liquid medicine dosage according to different working conditions, saving the liquid medicine resources to the greatest extent while ensuring the desulfurization effect, and improving the economy and adaptability of the device.

[0036] It should be noted that when the waterproof motor 47 is started, the connecting rod 471 is controlled to rotate. The rotation of the connecting rod 471 drives the arc-shaped rod 472 to rotate through the guidance of the arc-shaped plate 461. Furthermore, the arc-shaped rod 472 drives the vertical sliding rod 442 to move upward through the guidance of the guiding plate 443. The spring 45 deforms, causing the vertical sliding rod 442 to move upward, driving the horizontal sliding plate 441 to move upward, and then driving the plugging plate 44 to move along the spray pipe 42, moving the plugging plate 44 to a suitable position. By adjusting the position of the plugging plate 44, it is convenient to adjust the amount of the spray liquid according to the air volume of the tail gas entering the inside of the spray tower main body 1, avoiding waste of the spray liquid, achieving the effect of being able to adjust the amount of the spray liquid according to the size of the air volume, and achieving the effect of adjusting the spray liquid amount based on the linked air volume.

[0037] It should be noted that the cross-section of the arc-shaped plate 461 is arc-shaped, and the cross-section of the arc-shaped rod 472 is also arc-shaped. When the connecting rod 471 rotates forward or reversely, it can drive the arc-shaped rod 472 to rotate left or right along the arc-shaped side surface of the arc-shaped plate 461. Since the cross-section of the arc-shaped rod 472 is arc-shaped, after the arc-shaped rod 472 rotates, the height of the end connected to the spring 45 will rise or fall accordingly, further driving the spring 45 to be compressed or stretched. After the spring 45 deforms, it further drives the vertical sliding rod 442 to move upward or downward, finally completing the adjustment of the up and down position of the blocking plate 44, so as to facilitate adjusting the amount of spray liquid according to the exhaust gas volume entering the interior of the spray tower main body 1 and avoid wasting the spray liquid.

[0038] Finally, it should be noted that the electric energy generated by the operation of the small wind turbine 15 is stored in the corresponding battery, and the electric energy stored in the battery powers the small wind turbine 15. The small wind turbine 15, controller 18, delivery pump 3, waterproof motor 47, corresponding control system, external power supply and other components involved in the present invention are all common standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted controller and power supply, are connected by wires. The specific connection means should refer to the working principle of the present invention, and the electrical connection is completed in the order of the subsequent working sequence among the electrical components. The detailed connection means are all well-known technologies in the art.

[0039] In addition, the present invention also provides a sulfuric acid tail gas desulfurization method based on linkage air volume adjustment, using the above-mentioned sulfuric acid tail gas desulfurization device based on linkage air volume adjustment, which specifically includes the following steps: S1. Exhaust gas introduction: Connect the intake pipe 14 to the external exhaust gas inlet pipe, and the sulfuric acid tail gas enters the spray tower main body 1 through the intake pipe 14. The air flow in the intake pipe 14 drives the small wind turbine 15 to generate electricity, and the generated electric energy is stored in the corresponding battery and is subsequently used to supply the waterproof motor 47. The exhaust gas is downwardly introduced into the internal treatment chamber 19 of the spray tower main body 1 through the delivery pipe 16 and the air outlet hood 161; S2. Diversion and uniform distribution: After the exhaust gas enters the internal treatment chamber 19, it first passes through the lower diversion member. The diversion member is composed of a uniform flow layer 2 and a turbulent flow layer 20. The uniform flow layer 2 makes the exhaust gas evenly distributed, and the turbulent flow layer 20 disrupts the flow direction of the exhaust gas and increases the contact area between the exhaust gas and the subsequent spray liquid medicine; S3. Spray desulfurization: The transfer pump 3 extracts the waste gas treatment liquid from the outside through the suction pipe 30, and transports it to the water body enhancement ring 40 through the water outlet pipe 31 and the distribution pipe 32. The liquid medicine enters the spray pipe 42 through the conduction pipe 41. During this process, the waterproof motor 47 starts, and its output shaft drives the connecting rod 471 to rotate. The arc-shaped rod 472 at the end of the connecting rod 471 fits and rotates on the inner side of the arc-shaped plate 461 on the fixed convex block 46, driving the spring 45 to move. Then, through the guide plate 443, the vertical sliding rod 442 and the horizontal sliding plate 441, the position of the plugging plate 44 is adjusted to control the liquid inflow of the conduction pipe 41. Finally, the liquid medicine is sprayed out through the nozzle 43, making full contact with the waste gas for desulfurization reaction. The diversion short plate 421 and the diversion long plate 422 in the spray pipe 42 guide the flow of the liquid medicine. S4. Secondary treatment and discharge of spray desulfurization: The waste gas treated by the lower spray assembly 4 continues to rise, and passes through the upper diversion member and the spray assembly 4 again for secondary desulfurization treatment. The treated waste gas is discharged through the exhaust pipe 10 at the top of the spray tower main body 1. S5. Sewage discharge and monitoring: The waste liquid generated during the desulfurization process is discharged through the sewage discharge pipe 13 at the bottom of the spray tower main body 1. The sewage discharge valve 131 on the sewage discharge pipe 13 can control the sewage discharge operation. The operator can observe the internal desulfurization situation through the observation cylinder 11 and the transparent window 12 on the cylinder body of the spray tower main body 1.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention, and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfuric acid tail gas desulfurization device based on linkage air volume regulation, comprising a spray tower main body (1), characterized in that: The spray tower body (1) is provided with two sets of mutually symmetrical flow guide members, one above the other, for guiding the exhaust gas, the flow guide members comprising a flow balancing layer (2) and a flow disturbance layer (20) provided above the flow balancing layer (2); It also includes an air intake pipe (14) arranged on the bottom cylinder of the spray tower body (1), a small wind generator (15) being arranged inside the air intake pipe (14), and the air flow in the air intake pipe (14) drives the small wind generator (15) to generate electricity; The spray tower body (1) is further provided with two symmetrical spray assemblies (4) in an upper and lower position. The spray assembly (4) comprises a water enhancement ring (40). The water enhancement ring (40) is connected to external liquid medicine via a pipeline. A plurality of conducting pipes (41) are fixedly mounted on the inner annular side surface of the water enhancement ring (40). A spray pipe (42) is fixedly mounted at the end of the conducting pipe (41). A spray head (43) is detachably mounted at the end of the spray pipe (42). A blocking plate (44) for adjusting the amount of liquid inlet into the conducting pipe (41) is arranged in the spray pipe (42). The blocking plate (44) is adjusted via a waterproof motor (47) and a linkage structure.

2. The sulfuric acid tail gas desulfurization device based on linkage air volume regulation according to claim 1, wherein: An internal processing chamber (19) is provided inside the spray tower body (1), and the flow balancing layer (2), the flow disturbance layer (20) and the spray assembly (4) are all located in the internal processing chamber (19).

3. The sulfuric acid tail gas desulfurization device based on linkage air volume adjustment according to claim 1, wherein: The small wind power generator (15) generates electricity for supplying the waterproof motor (47), and the water body enhancement ring (40) is located above the corresponding spoiler layer (20).

4. The sulfuric acid tail gas desulfurization device based on linkage air volume regulation according to claim 1, wherein: An air outlet pipe (10) is fixedly mounted on the top of the spray tower body (1), and two upper and lower symmetrical observation tubes (11) are fixedly mounted on the cylinder of the spray tower body (1), and a transparent window (12) is connected to the end flange of the observation tube (11).

5. The sulfuric acid tail gas desulfurization device based on linkage air volume regulation according to claim 1, characterized in that: A sewage pipe (13) is fixedly mounted on the bottom cylinder of the spray tower body (1), and a sewage valve (131) is fixedly mounted on the sewage pipe (13).

6. The sulfuric acid tail gas desulfurization device based on linkage air volume regulation according to claim 1, wherein: A delivery pipe (16) is fixedly mounted on the air outlet end of the air inlet pipe (14), and an air outlet hood (161) is fixedly mounted on the end of the air outlet pipe (16), wherein the hood opening of the air outlet hood (161) faces downwards.

7. The sulfuric acid tail gas desulfurization device based on linkage air volume adjustment according to claim 1, wherein: A protective inner shell (17) for protecting the electronic components of the small wind turbine (15) is fixedly mounted on the inner wall of the spray tower body (1), and a controller (18) is fixedly mounted on the outside of the spray tower body (1).

8. The sulfuric acid tail gas desulfurization device based on linkage air volume regulation according to claim 1, wherein: A uniformly distributed pipe (32) is fixedly mounted on the water inlet end of the water body enhancement ring (40), a water outlet pipe (31) is fixedly mounted on the ends of the upper and lower uniformly distributed pipes (32), a delivery pump (3) is fixedly mounted on the ends of the water outlet pipes (31), and a suction pipe (30) is fixedly mounted on the water inlet end of the delivery pump (3).

9. The sulfuric acid tail gas desulfurization device based on linkage air volume adjustment according to claim 1, characterized in that: A plurality of flow guiding short plates (421) and a plurality of flow guiding long plates (422) are fixedly installed on the inner wall of the lower half part of the spray pipe (42). The flow guiding short plates (421) are located above the corresponding flow guiding long plates (422). The blocking plate (44) is arranged at the connection of the spray pipe (42) and the conduction pipe (41). A horizontal sliding plate (441) which is located inside the spray pipe (42) and is slidably connected with the spray pipe (42) is fixedly installed at the top end of the blocking plate (44). A vertical sliding rod (442) is fixedly installed on the upper surface of one end plate body of the horizontal sliding plate (441). A guiding plate (443) is fixedly installed at the top end of the vertical sliding rod (442). The guiding plate (443) is located inside the spray pipe (42) and is slidably connected with the spray pipe (42). A spring (45) is fixedly installed at the top end of the guiding plate (443). The waterproof motor (47) is fixedly installed inside the top pipe body of the spray pipe (42). A connecting rod (471) is fixedly installed at the end of the output shaft of the waterproof motor (47). An arc-shaped rod (472) is hinged at the end of the connecting rod (471). The end of the arc-shaped rod (472) is fixedly installed at the top end of the spring (45). A fixed convex block (46) is fixedly installed on the inner wall of the top pipe body of the spray pipe (42). An arc-shaped plate (461) is fixedly installed at the bottom end of the fixed convex block (46). The arc-shaped rod (472) rotates while being attached to the inner side surface of the arc-shaped plate (461) to drive the spring (45) to move.

10. A sulfuric acid tail gas desulfurization method based on linkage air volume regulation, using the sulfuric acid tail gas desulfurization device based on linkage air volume regulation according to any one of claims 1-9, characterized in that, Specifically, it includes the following steps: S1. Exhaust gas introduction: Sulfuric acid tail gas enters the spray tower main body (1) through the intake pipe (14). The air flow in the intake pipe (14) drives the small wind turbine (15) to generate electricity, and the generated electric energy is used to supply the waterproof motor (47). The exhaust gas is downwardly introduced into the inner treatment chamber (19) of the spray tower main body (1) through the delivery pipe (16) and the air outlet hood (161). S2. Flow guiding and uniform distribution: After the exhaust gas enters the inner treatment chamber (19), it first passes through the flow guiding member below. The flow guiding member is composed of a flow equalizing layer (2) and a flow disturbing layer (20). The flow equalizing layer (2) makes the exhaust gas evenly distributed, and the flow disturbing layer (20) disrupts the flow direction of the exhaust gas to increase the contact area between the exhaust gas and the subsequent sprayed liquid medicine. S3. Spray desulfurization: The transfer pump (3) extracts external liquid medicine through the suction pipe (30), transports it to the water body efficiency enhancement ring (40) through the water outlet pipe (31) and the distribution pipe (32). The liquid medicine enters the spray pipe (42) through the conduction pipe (41). The waterproof motor (47) starts, and its output shaft drives the connecting rod (471) to rotate. The arc-shaped rod (472) at the end of the connecting rod (471) fits and rotates on the inner side of the arc-shaped plate (461) on the fixed convex block (46), driving the spring (45) to move. Then, through the guide plate (443), the vertical sliding rod (442) and the horizontal sliding plate (441), the position of the blocking plate (44) is adjusted to control the liquid inlet volume of the conduction pipe (41). Finally, the liquid medicine is sprayed out through the nozzle (43) and fully contacts the waste gas for desulfurization reaction. The diversion short plate (421) and the diversion long plate (422) in the spray pipe (42) guide the flow of the liquid medicine; S4. Secondary treatment and discharge of spray desulfurization: The waste gas treated by the lower spray assembly (4) continues to rise, and passes through the upper diversion member and the spray assembly (4) again for secondary desulfurization treatment. The treated waste gas is discharged through the exhaust pipe (10) at the top of the spray tower main body (1); S5. Sewage discharge and monitoring: The waste liquid generated during the desulfurization process is discharged through the sewage pipe (13) at the bottom of the spray tower main body (1). The sewage valve (131) on the sewage pipe (13) can control the sewage discharge operation. The operator can observe the internal desulfurization situation through the observation cylinder (11) and the transparent window (12) on the cylinder body of the spray tower main body (1).

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