A flue gas desulfurization device

Abstract

This utility model discloses a flue gas desulfurization device, relating to the field of electrolytic aluminum flue gas treatment technology. It includes a desulfurization tank and at least one desulfurization box. An aeration assembly is fixedly installed at the bottom of the desulfurization tank to aerate flue gas into the tank. An alkali addition assembly is fixedly installed at the top of the desulfurization tank to add alkali solution into the tank. Several adsorption assemblies are installed in the desulfurization box, capable of adsorbing sulfur dioxide. The top of the desulfurization tank is connected to the top of the desulfurization box, and the bottom of the desulfurization tank is connected to the bottom of the desulfurization box. This utility model can effectively improve the efficiency of flue gas desulfurization treatment.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic aluminum flue gas treatment technology, and in particular to a flue gas desulfurization device. Background Technology

[0002] During the electrolytic aluminum production process, the flue gas produced has a high sulfur dioxide content and is highly corrosive. Direct emission of sulfur dioxide will pollute the atmospheric environment. For example, sulfur dioxide reacts with water to form acid rain, which threatens ecological security.

[0003] Therefore, desulfurization devices are needed to treat flue gas. Through desulfurization, aluminum electrolysis plants can significantly reduce sulfur dioxide emissions, thereby reducing air pollution, protecting the ecological environment, reducing health risks for surrounding residents and workers, and improving their quality of life.

[0004] However, the existing flue gas desulfurization devices have relatively simple structures and functions, resulting in low desulfurization efficiency during use. Utility Model Content

[0005] The purpose of this invention is to provide a flue gas desulfurization device to solve the problems existing in the prior art and to effectively improve the efficiency of flue gas desulfurization treatment.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a flue gas desulfurization device, including a desulfurization tank and at least one desulfurization box. An aeration component is fixedly installed at the bottom of the desulfurization tank for aerating flue gas into the desulfurization tank. An alkali addition component is fixedly installed at the top of the desulfurization tank for adding alkali solution into the desulfurization tank. The desulfurization box is equipped with a plurality of adsorption components capable of adsorbing sulfur dioxide. The top of the desulfurization tank is connected to the top of the desulfurization box, and the bottom of the desulfurization tank is connected to the bottom of the desulfurization box.

[0008] Preferably, the aeration assembly includes a flue gas inlet pipe and a connecting cavity. The connecting cavity is located at the bottom of the desulfurization tank. A plurality of aeration pipes are fixedly installed on the side wall of the connecting cavity, and a plurality of aeration nozzles are fixedly installed on each aeration pipe. The flue gas inlet pipe is fixedly located at the bottom of the desulfurization tank, with one end outside the desulfurization tank and the other end inside the connecting cavity. The flue gas inlet pipe is sealed to the connecting cavity, and the connecting cavity is rotatable around the flue gas inlet pipe. The flue gas inlet pipe is used to fill the connecting cavity with flue gas. The flue gas entering the connecting cavity can reach the aeration nozzles through the aeration pipes, and the aeration nozzles are used to spray the flue gas upwards. A stirring assembly is provided inside the desulfurization tank, and the stirring assembly is used to stir the alkaline solution and flue gas inside the desulfurization tank.

[0009] Preferably, the stirring assembly includes a stirring motor and a stirring shaft. The axis of the stirring shaft and the axis of the connecting cavity coincide with the center line of the desulfurization tank. The bottom end of the stirring shaft is fixedly connected to the top end of the connecting cavity. A plurality of stirring rods are fixedly provided on the stirring shaft. The stirring motor is fixedly located at the top end of the desulfurization tank. The power output shaft of the stirring motor is drivenly connected to the top end of the stirring shaft. The power output shaft of the stirring motor can drive the stirring shaft to rotate.

[0010] Preferably, the alkali addition assembly includes an alkali addition hopper, which is fixedly disposed at the top of the desulfurization tank. The bottom end of the alkali addition hopper is connected to the interior of the desulfurization tank. The top end of the alkali addition hopper is open. The alkali addition hopper is provided with a first control valve, which can control the opening and closing of the alkali addition hopper.

[0011] Preferably, the top of the desulfurization tank is fixedly provided with an exhaust pipe, one end of which is connected to the interior of the desulfurization tank and the other end of which is connected to the outside of the desulfurization tank; the bottom of the desulfurization tank is fixedly provided with a drain pipe, one end of which is connected to the interior of the desulfurization tank and the other end of which is connected to the outside of the desulfurization tank; a second control valve is provided on the drain pipe, which can control the opening and closing of the drain pipe.

[0012] Preferably, a plurality of heating rings are fixedly provided on the side wall of the desulfurization tank, and the heating rings can heat the interior of the desulfurization tank when energized; a support leg is fixedly provided at the bottom of the desulfurization box, and a support column is fixedly provided on the side wall of the desulfurization box, with one end of the support column away from the desulfurization box being fixedly connected to the desulfurization tank.

[0013] Preferably, a plurality of insertion grooves are sequentially formed on the inner sidewall of the desulfurization tank from top to bottom, and the insertion grooves correspond one-to-one with the adsorption components; the adsorption components include an installation frame and an activated carbon adsorption plate, the activated carbon adsorption plate is detachably fixed in the installation frame, the installation frame can be inserted into the insertion grooves, and can slide along the insertion grooves toward or away from the desulfurization tank.

[0014] Preferably, a support frame is fixedly provided on the outer wall of the desulfurization box, and a moving drive component is provided on the support frame. The moving drive component is connected to each of the mounting frames on the desulfurization box and can drive each of the mounting frames to slide along the insertion groove.

[0015] Preferably, the moving drive assembly includes a connecting plate, a drive motor, and a one-way screw. The connecting plate is fixedly connected to each of the mounting frames on the desulfurization tank. The one-way screw is threadedly connected to the connecting plate, and one end of the one-way screw is connected to the outer wall of the desulfurization tank. The one-way screw is rotatable, and its rotation can drive the connecting plate to move closer to or further away from the desulfurization tank. The drive motor is fixedly mounted on the support frame, and its power output shaft is drively connected to the one-way screw. The power output shaft of the drive motor can drive the one-way screw to rotate.

[0016] Preferably, an exhaust hood is fixedly installed inside the top of the desulfurization box, and an exhaust pipe is provided between the top of the desulfurization tank and the top of the desulfurization box. One end of the exhaust pipe is fixedly connected to and communicates with the top of the desulfurization tank, and the other end of the exhaust pipe is fixedly connected to and communicates with the exhaust hood. A circulation pipe is provided between the bottom of the desulfurization tank and the bottom of the desulfurization box. One end of the circulation pipe is fixedly connected to and communicates with the bottom of the desulfurization tank, and the other end of the circulation pipe is fixedly connected to and communicates with the bottom of the desulfurization box. A one-way valve is fixedly installed on the circulation pipe, and the one-way valve allows one-way flow from the desulfurization box to the desulfurization tank.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] The flue gas desulfurization device provided by this utility model introduces flue gas into the desulfurization tank through an aeration component and adds alkali solution into the desulfurization tank through an alkali solution addition component. The alkali solution removes most of the sulfur dioxide in the flue gas, thus achieving effective removal of sulfur dioxide from the flue gas through the desulfurization tank. The top of the desulfurization tank is connected to the top of the desulfurization box, allowing the remaining flue gas in the desulfurization tank to enter the desulfurization box. The adsorption component in the desulfurization box further removes the remaining sulfur dioxide in the flue gas. The bottom of the desulfurization tank is connected to the bottom of the desulfurization box, allowing the flue gas treated in the desulfurization box to return to the desulfurization tank. This achieves a cycle of alkali desulfurization and adsorption desulfurization for electrolytic aluminum flue gas, thereby effectively improving the efficiency of flue gas desulfurization. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall three-dimensional structure of the flue gas desulfurization device provided by this utility model;

[0021] Figure 2 A front sectional view of the flue gas desulfurization device provided by this utility model;

[0022] Figure 3 This is a cross-sectional view of the desulfurization tank and desulfurization box in the flue gas desulfurization device provided by this utility model;

[0023] In the diagram: 1. Desulfurization tank; 2. Support column; 3. Desulfurization box; 4. Support leg; 5. Insertion groove; 6. Mounting frame; 7. Activated carbon adsorption plate; 8. Connecting plate; 9. Supporting frame; 10. Drive motor; 11. One-way screw; 12. Circulation pipe; 13. One-way valve; 14. Exhaust pipe; 15. Exhaust hood; 16. Alkali solution addition hopper; 17. First control valve; 18. Gas outlet pipe; 19. Liquid drain pipe; 20. Second control valve; 21. Heating ring; 22. Power supply line; 23. Power supply; 24. Stirring motor; 25. Stirring shaft; 26. Stirring rod; 27. Connecting cavity; 28. Flue gas inlet pipe; 29. ​​Aeration pipe; 30. Aeration nozzle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The purpose of this invention is to provide a flue gas desulfurization device to solve the problems existing in the prior art and to effectively improve the efficiency of flue gas desulfurization treatment.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 3 As shown, this utility model provides a flue gas desulfurization device, including a desulfurization tank 1 and at least one desulfurization box 3. An aeration component is fixedly installed at the bottom of the desulfurization tank 1 for aerating flue gas into the interior of the desulfurization tank 1. An alkali addition component is fixedly installed at the top of the desulfurization tank 1 for adding alkali solution into the interior of the desulfurization tank 1. Several adsorption components are installed in the desulfurization box 3, which can adsorb sulfur dioxide. The top of the desulfurization tank 1 is connected to the top of the desulfurization box 3, and the bottom of the desulfurization tank 1 is connected to the bottom of the desulfurization box 3.

[0028] The flue gas desulfurization device provided by this utility model introduces flue gas into the desulfurization tank 1 through an aeration component and adds alkali solution into the desulfurization tank 1 through an alkali solution addition component, so that the alkali solution removes most of the sulfur dioxide in the flue gas. That is, the desulfurization tank 1 achieves effective removal of sulfur dioxide in the flue gas. The top of the desulfurization tank 1 is connected to the top of the desulfurization box 3, so that the remaining flue gas in the desulfurization tank 1 can enter the desulfurization box 3. The adsorption component in the desulfurization box 3 further removes the remaining sulfur dioxide in the flue gas. The bottom of the desulfurization tank 1 is connected to the bottom of the desulfurization box 3, so that the flue gas treated by the desulfurization box 3 returns to the desulfurization tank 1. Thus, the electrolytic aluminum flue gas is subjected to cyclic treatment of alkali desulfurization and adsorption desulfurization, thereby effectively improving the efficiency of flue gas desulfurization treatment.

[0029] As a preferred embodiment of this invention, ammonia water is used as the alkaline solution.

[0030] In a preferred embodiment of this invention, the aeration assembly includes a flue gas inlet pipe 28 and a connecting cavity 27. The connecting cavity 27 is located at the bottom of the desulfurization tank 1. A plurality of aeration pipes 29 are fixedly mounted on the side wall of the connecting cavity 27, and a plurality of aeration nozzles 30 are fixedly mounted on the aeration pipes 29. The flue gas inlet pipe 28 is fixedly located at the bottom of the desulfurization tank 1, with one end of the flue gas inlet pipe 28 outside the desulfurization tank 1 and the other end of the flue gas inlet pipe 28 inside the connecting cavity 27. The flue gas inlet pipe 28 and the connecting cavity 27 are sealed together. The connecting cavity 27 can rotate around the flue gas inlet pipe 28; the flue gas inlet pipe 28 is used to fill the connecting cavity 27 with flue gas, and the flue gas entering the connecting cavity 27 can reach the aeration nozzle 30 through the aeration pipe 29. The aeration nozzle 30 is used to spray the flue gas upward so that the flue gas can be added into the desulfurization tank 1. This facilitates the reaction of sulfur dioxide in the flue gas with the alkaline solution for desulfurization treatment; the desulfurization tank 1 is equipped with a stirring component, which is used to stir the alkaline solution and flue gas in the desulfurization tank 1 to achieve full mixing of flue gas and alkaline solution.

[0031] In a preferred embodiment of this invention, the stirring assembly includes a stirring motor 24 and a stirring shaft 25. The axis of the stirring shaft 25 and the axis of the connecting cavity 27 coincide with the center line of the desulfurization tank 1. The bottom end of the stirring shaft 25 is fixedly connected to the top end of the connecting cavity 27. Several stirring rods 26 are fixedly mounted on the stirring shaft 25. The stirring motor 24 is fixedly mounted on the top end of the desulfurization tank 1. The power output shaft of the stirring motor 24 is connected to the top end of the stirring shaft 25. The power output shaft of the stirring motor 24 can drive the stirring shaft 25 to rotate. The stirring rods 26 can fully stir and mix the alkaline solution and the flue gas, thereby facilitating the desulfurization treatment of the flue gas.

[0032] In a preferred embodiment of this invention, the alkali addition assembly includes an alkali addition hopper 16, which is fixedly mounted on the top of the desulfurization tank 1. The bottom of the alkali addition hopper 16 is connected to the interior of the desulfurization tank 1. The top of the alkali addition hopper 16 is open, and a first control valve 17 is provided on the alkali addition hopper 16. The first control valve 17 can control the opening and closing of the alkali addition hopper 16. By opening the first control valve 17, alkali can be added from the alkali addition hopper 16 into the interior of the desulfurization tank 1, thereby facilitating desulfurization treatment inside the desulfurization tank 1.

[0033] In a preferred embodiment of this invention, a gas outlet pipe 18 is fixedly provided at the top of the desulfurization tank 1. One end of the gas outlet pipe 18 is connected to the interior of the desulfurization tank 1, and the other end of the gas outlet pipe 18 is connected to the outside of the desulfurization tank 1. The gas outlet pipe 18 facilitates the discharge of flue gas after desulfurization. A drain pipe 19 is fixedly provided at the bottom of the desulfurization tank 1. One end of the drain pipe 19 is connected to the interior of the desulfurization tank 1, and the other end of the drain pipe 19 is connected to the outside of the desulfurization tank 1. A second control valve 20 is provided on the drain pipe 19. The second control valve 20 can control the opening and closing of the drain pipe 19. By opening the second control valve 20, the solution after reaction can be discharged through the drain pipe 19.

[0034] In a preferred embodiment of this invention, several heating rings 21 are fixedly provided on the side wall of the desulfurization tank 1. The heating rings 21 can be energized to heat the interior of the desulfurization tank 1, thereby heating the alkaline solution and accelerating the reaction between the alkaline solution and sulfur dioxide in the flue gas. The bottom of the desulfurization box 3 is fixedly provided with a support leg 4, and a support column 2 is fixedly provided on the side wall of the desulfurization box 3. The end of the support column 2 away from the desulfurization box 3 is fixedly connected to the desulfurization tank 1 to provide stable support for the entire desulfurization box 3.

[0035] In a preferred embodiment of this invention, a power supply 23 is provided on the outer wall of the desulfurization box 3. The power supply 23 is connected to the heating ring 21 through a power supply line 22, and the power supply 23 supplies power to each heating ring 21 through the power supply line 22.

[0036] In a preferred embodiment of this invention, a plurality of insertion grooves 5 are sequentially formed on the inner sidewall of the desulfurization box 3 from top to bottom, and each insertion groove 5 corresponds to an adsorption component. The adsorption component includes a mounting frame 6 and an activated carbon adsorption plate 7. The activated carbon adsorption plate 7 is detachably fixed in the mounting frame 6. The mounting frame 6 can be inserted into the insertion groove 5 and can slide along the insertion groove 5 towards or away from the desulfurization tank 1, which facilitates the removal of the mounting frame 6 and the activated carbon adsorption plate 7 from the desulfurization box 3, thereby facilitating the replacement of the activated carbon adsorption plate 7. Furthermore, the insertion of the mounting frame 6 into the insertion groove 5 enables a sealed connection between the activated carbon adsorption plate 7 and the desulfurization box 3, thereby facilitating the adsorption and desulfurization treatment of the flue gas by the activated carbon adsorption plate 7.

[0037] As a preferred embodiment of this invention, a support frame 9 is fixedly provided on the outer wall of the desulfurization box 3. A moving drive component is provided on the support frame 9. The moving drive component is connected to each mounting frame 6 on the desulfurization box 3 and can drive each mounting frame 6 to slide along the insertion groove 5, which is convenient for use.

[0038] In a preferred embodiment of this invention, the moving drive assembly includes a connecting plate 8, a drive motor 10, and a one-way screw 11. The connecting plate 8 is fixedly connected to each mounting frame 6 on the desulfurization tank 3. The one-way screw 11 is threadedly connected to the connecting plate 8, and one end of the one-way screw 11 is connected to the outer wall of the desulfurization tank 3. The one-way screw 11 can rotate, and its rotation can drive the connecting plate 8 to move closer to or away from the desulfurization tank 1. The drive motor 10 is fixedly mounted on the support frame 9, and its power output shaft is connected to the one-way screw 11. The power output shaft of the drive motor 10 can drive the one-way screw 11 to rotate, thereby moving the connecting plate 8 and the mounting frame 6 closer to or away from the desulfurization tank 1, saving time and effort.

[0039] In a preferred embodiment of this invention, an exhaust hood 15 is fixedly installed inside the top of the desulfurization tank 3. An exhaust pipe 14 is provided between the top of the desulfurization tank 1 and the top of the desulfurization tank 3. One end of the exhaust pipe 14 is fixedly connected to and communicates with the top of the desulfurization tank 1, and the other end of the exhaust pipe 14 is fixedly connected to and communicates with the exhaust hood 15. A circulation pipe 12 is provided between the bottom of the desulfurization tank 1 and the bottom of the desulfurization tank 3. One end of the circulation pipe 12 is fixedly connected to and communicates with the bottom of the desulfurization tank 1, and the other end of the circulation pipe 12 is fixedly connected to and communicates with the bottom of the desulfurization tank 3. A one-way valve 13 is fixedly installed on the circulation pipe 12. The one-way valve 13 conducts unidirectional flow from the desulfurization tank 3 to the desulfurization tank 1. The flue gas treated by the desulfurization tank 1 is transferred to the interior of the desulfurization tank 3 through the exhaust pipe 14 and the exhaust hood 15. The flue gas treated by the desulfurization tank 3 is returned to the interior of the desulfurization tank 1 through the circulation pipe 12, realizing flue gas circulation desulfurization treatment, which facilitates rapid desulfurization treatment of electrolytic aluminum flue gas.

[0040] A preferred working process of the flue gas desulfurization device provided by this utility model:

[0041] The flue gas produced during aluminum electrolysis is introduced into the connecting chamber 27 through the flue gas inlet pipe 28. The aeration pipe 29 and aeration nozzle 30 installed on the connecting chamber 27 aerate the flue gas into the alkaline solution. The power supply 23 supplies power to the heating ring 21 through the power supply line 22, which in turn drives the stirring shaft 25 to rotate the stirring rod 26. The stirring rod 26 stirs the alkaline solution, and the alkaline solution and sulfur dioxide in the flue gas are rotated and stirred for desulfurization treatment. The flue gas is introduced into the desulfurization tank 3 through the exhaust pipe 14 and exhaust hood 15. The activated carbon adsorption plate 7 adsorbs the untreated sulfur dioxide in the flue gas, thus achieving secondary desulfurization treatment of the flue gas. Then, the flue gas is reintroduced into the desulfurization tank 1 through the circulation pipe 12 for circulating desulfurization treatment, which facilitates the desulfurization treatment of aluminum electrolysis flue gas.

[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flue gas desulfurization device characterized by comprising: The device includes a desulfurization tank and at least one desulfurization box. An aeration assembly is fixedly installed at the bottom of the desulfurization tank for aerating flue gas into the tank. An alkali addition assembly is fixedly installed at the top of the desulfurization tank for adding alkali solution into the tank. The desulfurization box contains several adsorption assemblies capable of adsorbing sulfur dioxide. The top of the desulfurization tank is connected to the top of the desulfurization box, and the bottom of the tank is connected to the bottom of the box.

2. The flue gas desulphurization device according to claim 1, characterized in that: The aeration assembly includes a flue gas inlet pipe and a connecting cavity. The connecting cavity is located at the bottom of the desulfurization tank. Several aeration pipes are fixedly installed on the side wall of the connecting cavity, and several aeration nozzles are fixedly installed on the aeration pipes. The flue gas inlet pipe is fixedly installed at the bottom of the desulfurization tank. One end of the flue gas inlet pipe is placed outside the desulfurization tank, and the other end of the flue gas inlet pipe is placed inside the connecting cavity. The flue gas inlet pipe is sealed to the connecting cavity, and the connecting cavity can rotate around the flue gas inlet pipe. The flue gas inlet pipe is used to fill the connecting cavity with flue gas. The flue gas entering the connecting cavity can reach the aeration nozzle through the aeration pipe. The aeration nozzle is used to spray the flue gas upward. The desulfurization tank is equipped with a stirring assembly, which is used to stir the alkaline solution and flue gas in the desulfurization tank.

3. The flue gas desulphurization device according to claim 2, characterized in that: The stirring assembly includes a stirring motor and a stirring shaft. The axis of the stirring shaft and the axis of the connecting cavity coincide with the center line of the desulfurization tank. The bottom end of the stirring shaft is fixedly connected to the top end of the connecting cavity. Several stirring rods are fixedly mounted on the stirring shaft. The stirring motor is fixedly mounted on the top end of the desulfurization tank. The power output shaft of the stirring motor is drivenly connected to the top end of the stirring shaft. The power output shaft of the stirring motor can drive the stirring shaft to rotate.

4. The flue gas desulfurization device according to claim 1, characterized by: The alkali addition assembly includes an alkali addition hopper, which is fixedly installed at the top of the desulfurization tank. The bottom end of the alkali addition hopper is connected to the interior of the desulfurization tank. The top end of the alkali addition hopper is open, and a first control valve is provided on the alkali addition hopper. The first control valve can control the opening and closing of the alkali addition hopper.

5. The flue gas desulfurization device according to claim 1, characterized by: The top of the desulfurization tank is fixedly equipped with an exhaust pipe, one end of which is connected to the interior of the desulfurization tank and the other end of which is connected to the outside of the desulfurization tank. The bottom of the desulfurization tank is fixedly equipped with a drain pipe, one end of which is connected to the interior of the desulfurization tank and the other end of which is connected to the outside of the desulfurization tank. A second control valve is provided on the drain pipe, which can control the opening and closing of the drain pipe.

6. The flue gas desulfurization device according to claim 1, characterized in that: Several heating rings are fixedly installed on the side wall of the desulfurization tank. When the heating rings are energized, they can heat the inside of the desulfurization tank. Support legs are fixedly installed at the bottom of the desulfurization box, and support columns are fixedly installed on the side wall of the desulfurization box. The end of the support column away from the desulfurization box is fixedly connected to the desulfurization tank.

7. The flue gas desulfurization device according to claim 1, characterized by: The inner wall of the desulfurization tank has a number of insertion grooves arranged sequentially from top to bottom, and each insertion groove corresponds to an adsorption component. The adsorption component includes a mounting frame and an activated carbon adsorption plate. The activated carbon adsorption plate is detachably fixed in the mounting frame. The mounting frame can be inserted into the insertion groove and can slide along the insertion groove towards or away from the desulfurization tank.

8. The flue gas desulfurization device according to claim 7, characterized in that: A support frame is fixedly provided on the outer wall of the desulfurization box. A moving drive component is provided on the support frame. The moving drive component is connected to each of the mounting frames on the desulfurization box and can drive each of the mounting frames to slide along the insertion groove.

9. The flue gas desulphurization device according to claim 8, characterized in that: The moving drive assembly includes a connecting plate, a drive motor, and a one-way screw. The connecting plate is fixedly connected to each of the mounting frames on the desulfurization tank. The one-way screw is threadedly connected to the connecting plate, and one end of the one-way screw is connected to the outer wall of the desulfurization tank. The one-way screw is rotatable, and its rotation can drive the connecting plate to move closer to or further away from the desulfurization tank. The drive motor is fixedly mounted on the support frame, and its power output shaft is driven by the one-way screw. The power output shaft of the drive motor can drive the one-way screw to rotate.

10. The flue gas desulphurization device as claimed in claim 1, wherein: An exhaust hood is fixedly installed inside the top of the desulfurization tank. An exhaust pipe is provided between the top of the desulfurization tank and the top of the desulfurization box. One end of the exhaust pipe is fixedly connected to and communicates with the top of the desulfurization tank, and the other end of the exhaust pipe is fixedly connected to and communicates with the exhaust hood. A circulation pipe is provided between the bottom of the desulfurization tank and the bottom of the desulfurization box. One end of the circulation pipe is fixedly connected to and communicates with the bottom of the desulfurization tank, and the other end of the circulation pipe is fixedly connected to and communicates with the bottom of the desulfurization box. A one-way valve is fixedly installed on the circulation pipe, and the one-way valve allows one-way flow from the desulfurization box to the desulfurization tank.

Images