Desulfurization device for purifying carbon dioxide

Abstract

The utility model provides a desulfurization device for purifying carbon dioxide, which comprises a gas box, two desulfurization cylinders are arranged on one side of the gas box, a fixing frame is fixed on the outer sides of the two desulfurization cylinders, a driving assembly is arranged in each desulfurization cylinder, the driving assembly comprises a driving shaft, and the driving shaft is connected with a driving motor. The two ends of the driving shaft are rotationally installed in the sulfur removal cylinders through bearings, a first motor is fixed to the position, corresponding to the driving shaft, of the outer wall of the gas box, and the output end of the first motor is fixedly connected with the driving shaft. After carbon dioxide gas containing sulfide is fed in, the moving frame is unfolded along the driving shaft along with movement of the piston plate, the moving frame rotates along the interior of the desulfurization barrel in the moving process, a desulfurizing agent is sprayed to gas in the desulfurization barrel, and the sulfide in the gas and the desulfurizing agent are mixed more sufficiently; the high efficiency and the mixing uniformity of treating the sulfide in the carbon dioxide are improved.

Description

A desulfurization device for purifying carbon dioxide Technical Field

[0001] This utility model relates to the field of grinding device technology, specifically a desulfurization device for purifying carbon dioxide. Background Technology

[0002] Carbon dioxide exhaust contains a large amount of sulfides such as hydrogen sulfide, carbon sulfide, sulfur dioxide, and carbon disulfide. When these sulfides are emitted into the air along with carbon dioxide, they can cause air pollution and acidification, which can negatively impact the ecological environment.

[0003] Patent CN207203842U proposes a desulfurization regeneration device for purifying carbon dioxide tail gas. The sulfur-containing carbon dioxide tail gas enters the downstream process after removing sulfides through a desulfurization bed. At this time, the adsorption saturated desulfurization bed is heated by regeneration gas through a desulfurization regeneration heater to backflush the sulfides into the cooler. The regeneration gas mixed with sulfide impurities coming out of the cooler enters the desulfurization regeneration tower from the bottom. During the upward movement, it is washed by the desulfurization solution. Some of the sulfides dissolve in the desulfurization solution and are drawn from the bottom of the tower to a neutralization tank to react and generate solid calcium sulfate. The calcium sulfate in the desulfurization solution is then separated by a centrifuge. The separated desulfurization solution is pumped to the top of the desulfurization regeneration tower for further spraying and washing of the desulfurization regeneration gas. The solid calcium sulfate can be packaged and sold. The desulfurization regeneration gas that meets the emission standards after washing is directly discharged from the top of the desulfurization regeneration tower.

[0004] In the above scheme, the sulfides in the exhaust gas are adsorbed by the desulfurization bed. During this process, due to the influence of the exhaust gas flow rate, some of the sulfides inside the exhaust gas may not be able to fully contact the desulfurization bed, thus affecting the treatment effect of the sulfides in the exhaust gas. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a desulfurization device for purifying carbon dioxide to solve the problems mentioned in the background. This invention features a novel structure with two sets of desulfurization cylinders used alternately. After carbon dioxide gas containing sulfides is introduced, the moving frame unfolds along the drive shaft as the piston plate moves. During the movement, the frame rotates inside the desulfurization cylinder, spraying desulfurizing agent into the gas inside the cylinder. This allows the sulfides in the gas to mix more thoroughly with the desulfurizing agent, improving the efficiency and uniformity of the treatment of sulfides in carbon dioxide.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A desulfurization device for purifying carbon dioxide includes a gas chamber. Two desulfurization cylinders are arranged on one side of the gas chamber. Vertical frames are fixed to the outer sides of the two desulfurization cylinders. A drive assembly is provided inside each desulfurization cylinder. The drive assembly includes a drive shaft. Both ends of the drive shaft are rotatably mounted inside the desulfurization cylinder via bearings. A first motor is fixed to the outer wall of the gas chamber at a position corresponding to the drive shaft. The output end of the first motor is fixedly connected to the drive shaft. Multiple nozzles are arranged in a ring on the surface of the drive shaft. A piston plate is slidably sleeved on the surface of the drive shaft and slides along the inner wall of the desulfurization cylinder. Four through holes are equidistantly opened on the surface of the piston plate. Four exhaust holes are opened at the tail end of the desulfurization cylinder, and the exhaust holes are staggered with the through holes. Two connecting pipes are symmetrically fixed to the front end of the desulfurization cylinder and communicate with the inside of the gas chamber. A storage box is fixed to the surface of the gas chamber at a position corresponding to the two desulfurization cylinders, and the storage box stores desulfurizing agent.

[0007] Furthermore, the drive assembly also includes a moving groove, and the moving groove is equidistantly provided on the surface of the drive shaft. A moving frame is slidably connected inside the moving groove, and a fixed frame is fixed to the top of the front end of the drive shaft. Both the fixed frame and the moving frame are fixed with nozzles.

[0008] Furthermore, a second hose is connected between adjacent nozzles via a rotating shaft, and a first hose is fixed to the top of the nozzle at the top of the mounting bracket, with the first hose extending out of the desulfurization cylinder and fixedly connected to the storage tank.

[0009] Furthermore, the storage tank and the desulfurization cylinder are rotatably mounted with collars corresponding to the positions of the first hose, and the first hose is fixedly connected to the two collars.

[0010] Furthermore, the drive shaft is hollow inside, and a screw is rotatably mounted inside the drive shaft via a bearing. A screw plate is threaded onto the surface of the screw, and the inner ring of the piston plate is rotatably connected to the screw plate.

[0011] Furthermore, a second gear is fixed to the screw protruding end of the desulfurization cylinder at the upper end of the vertical frame, and a first gear is fixed to the screw protruding end of the desulfurization cylinder at the lower end of the vertical frame. The first gear meshes with the second gear, and a second motor is fixed to the outside of the vertical frame corresponding to the first gear, and the output end of the second motor is fixedly connected to the first gear.

[0012] Furthermore, a baffle is provided inside the through hole of the piston plate, and a rod is slidably inserted into the through hole at the rear end of the baffle. The rod is fixedly connected to the baffle, and a top column is fixed at the front end of the desulfurization cylinder corresponding to the position of the through hole.

[0013] Furthermore, the desulfurization cylinder has a discharge port at the bottom of its front end, and a sealing plate is installed on the outside of the discharge port.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this invention, the piston plate is initially positioned at the front end of the desulfurization cylinder. At this time, the baffle is squeezed by the top column, blocking the through hole and preventing gas from passing through the piston plate. As the piston plate moves to the rear end of the desulfurization cylinder, sulfur-containing carbon dioxide gas is gradually introduced into the cylinder. The desulfurizing agent and the sulfides of the gas are fully mixed. After the piston plate moves to the rear end of the desulfurization cylinder, the rear end of the insert rod squeezes the inner wall of the cylinder, thereby pushing the baffle forward and opening the through hole. The carbon dioxide gas can then be discharged through the through hole and the exhaust hole.

[0016] 2. This utility model uses a second motor to drive the first gear to rotate. The first gear meshes with the second gear, and the two screws rotate synchronously in opposite directions, causing the screw plate and piston plate to move in opposite directions along the inside of their respective desulfurization cylinders. The piston plate moves from front to back during the process of introducing sulfur-containing carbon dioxide gas and desulfurization, and from back to front during the process of discharging carbon dioxide gas and cleaning the residue inside the desulfurization cylinder. This keeps the two desulfurization cylinders working synchronously and alternately treating carbon dioxide, thereby improving the desulfurization efficiency.

[0017] 3. As the movable frame and nozzles gradually unfold, they are evenly distributed on the drive shaft. During this process, the drive shaft drives the movable frame, the fixed frame, and the nozzles to rotate. The first hose connecting the nozzles on the fixed frame is kept connected to the storage tank through the shaft collar, and the desulfurizing agent is delivered to each nozzle through the storage tank. The desulfurizing agent is sprayed around the inside of the desulfurization cylinder through the nozzles, which improves the treatment efficiency of sulfides in carbon dioxide gas and makes the mixing more uniform. When the piston plate returns to the front end of the desulfurization cylinder, the movable frame and the fixed frame will merge back into a circular surface.

[0018] 4. Compared with the prior art, the present invention uses two sets of desulfurization cylinders alternately. After carbon dioxide gas containing sulfides is sent in, the moving frame is extended along the drive shaft as the piston plate moves. During the movement, it rotates along the inside of the desulfurization cylinder and sprays desulfurizing agent into the gas inside the desulfurization cylinder, so that the sulfides in the gas are mixed more thoroughly with the desulfurizing agent, thereby improving the efficiency and uniformity of the treatment of sulfides in carbon dioxide. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of a desulfurization device for purifying carbon dioxide according to the present invention.

[0020] Figure 2 is a schematic diagram showing the connection between the treatment cylinder and the gas box of a desulfurization device for purifying carbon dioxide according to this utility model.

[0021] Figure 3 is a schematic diagram of the front end structure of the desulfurization cylinder of a desulfurization device for purifying carbon dioxide according to this utility model.

[0022] Figure 4 is a schematic diagram of the connection between the drive assembly and the internal structure of the desulfurization cylinder of a desulfurization device for purifying carbon dioxide according to this utility model.

[0023] Figure 5 is a schematic diagram of the drive component structure of a desulfurization device for purifying carbon dioxide according to this utility model.

[0024] Figure 6 is a schematic diagram of the piston plate surface structure of a desulfurization device for purifying carbon dioxide according to this utility model.

[0025] Figure 7 is a schematic diagram of the internal structure of the desulfurization cylinder of a desulfurization device for purifying carbon dioxide according to this utility model.

[0026] In the diagram: 1. Gas tank; 11. Storage tank; 12. First motor; 13. Collar; 14. First hose; 2. Desulfurization cylinder; 21. Vertical frame; 22. Sealing plate; 23. Connecting pipe; 24. Exhaust port; 3. Drive assembly; 31. Drive shaft; 32. Piston plate; 33. Moving groove; 34. Screw; 35. Screw plate; 36. Moving frame; 37. Nozzle; 38. Second hose; 39. Fixed frame; 310. Top column; 311. Through hole; 312. Insert rod; 313. Baffle; 314. Second motor; 315. First gear; 316. Second gear. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Please refer to Figures 1 to 7. This utility model provides a technical solution: a desulfurization device for purifying carbon dioxide, including a gas tank 1. Two desulfurization cylinders 2 are arranged on one side of the gas tank 1. A vertical frame 21 is fixed to the outer side of the two desulfurization cylinders 2. A drive assembly 3 is provided inside the desulfurization cylinder 2. The drive assembly 3 includes a drive shaft 31. The two ends of the drive shaft 31 are rotatably mounted inside the desulfurization cylinder 2 through bearings. A first motor 12 is fixed on the outer wall of the gas tank 1 at a position corresponding to the drive shaft 31. The output end of the first motor 12 is fixedly connected to the drive shaft 31. A plurality of nozzles 37 are arranged in a ring on the surface of the drive shaft 31. A piston plate 32 is slidably sleeved on the surface of the drive shaft 31 and slides along the inner wall of the desulfurization cylinder 2. Four through holes 311 are equidistantly opened on the surface of the piston plate 32. A [missing information - likely a type of hole] is opened at the tail end of the desulfurization cylinder 2. Four exhaust ports 24 are provided, and the exhaust ports 24 and through holes 311 are staggered. Two connecting pipes 23 are symmetrically fixed at the front end of the desulfurization cylinder 2, and the connecting pipes 23 are connected to the inside of the gas box 1. A storage box 11 is fixed on the surface of the gas box 1 at the position corresponding to the two desulfurization cylinders 2, and the storage box 11 stores desulfurizing agent. When using the device, the sulfur-containing carbon dioxide gas in the gas box 1 is alternately sent into the two desulfurization cylinders 2 under the control of the solenoid valve in the connecting pipe 23. The spray nozzle 37 in the desulfurization cylinder 2 is moved and unfolded by the drive component 3 to spray the desulfurizing agent around the gas in the desulfurization cylinder 2, so that the desulfurizing agent and sulfide are mixed more evenly and the desulfurization efficiency is improved. This method is a dry desulfurization method. After the treatment is completed, the carbon dioxide gas is sent out from the exhaust port 24 at the tail end of the desulfurization cylinder 2. The purified carbon dioxide gas can be received by an additional connecting pipe 23.

[0029] In this embodiment, the drive assembly 3 further includes a moving groove 33. Moving grooves 33 are equidistantly formed on the surface of the drive shaft 31. A moving frame 36 is slidably connected inside the moving groove 33. A fixed frame 39 is fixed to the top of the front end of the drive shaft 31. Both the fixed frame 39 and the moving frame 36 have nozzles 37 fixed to their tops. Adjacent nozzles 37 are connected by a rotating shaft via a second flexible hose 38. A first flexible hose 14 is fixed to the top of the nozzle 37 on the top of the fixed frame 39. The first flexible hose 14 extends out of the desulfurization cylinder 2 and is fixedly connected to the storage tank 11. A collar 13 is rotatably mounted on the storage tank 11 and the desulfurization cylinder 2 corresponding to the position of the first flexible hose 14. The first flexible hose 14 is fixedly connected to two collars 13. Multiple sets of nozzles 37 on the drive shaft 31 have their top nozzles fixedly connected to the drive shaft 31 via the fixed frame 39, maintaining their position. The moving frame 36 on one side of the fixed frame 39... Fixedly connected to the piston plate 32, the piston plate 32 can move along the surface of the drive shaft 31 to drive the moving frame 36 to slide along the moving groove 33. Each moving frame 36 is connected by a second flexible hose 38 with a certain degree of toughness. Therefore, as the piston plate 32 moves, the moving frame 36 and the nozzle 37 gradually unfold and are evenly distributed on the drive shaft 31. During this process, the drive shaft 31 drives the moving frame 36, the fixed frame 39 and the nozzle 37 to rotate. The first flexible hose 14 connecting the nozzle 37 on the fixed frame 39 is connected to the storage tank 11 through the collar 13 and delivers the desulfurizing agent to each nozzle 37 through the storage tank 11. The desulfurizing agent is sprayed around the inside of the desulfurization cylinder 2 through the nozzle 37, which improves the treatment efficiency of sulfides in carbon dioxide gas and makes the mixing more uniform. When the piston plate 32 returns to the front end of the desulfurization cylinder 2, the moving frame 36 and the fixed frame 39 will merge back into a circular surface.

[0030] In this embodiment, the drive shaft 31 is hollow inside, and a screw 34 is rotatably mounted inside the drive shaft 31 via bearings. A screw plate 35 is threaded onto the surface of the screw 34. The inner ring of the piston plate 32 is rotatably connected to the screw plate 35. A second gear 316 is fixed to the protruding end of the screw 34 of the desulfurization cylinder 2 at the upper end of the vertical frame 21, and a first gear 315 is fixed to the protruding end of the screw 34 of the desulfurization cylinder 2 at the lower end of the vertical frame 21. The first gear 315 meshes with the second gear 316. A second motor 314 is fixed to the outer side of the vertical frame 21 corresponding to the first gear 315. The output end of 14 is fixedly connected to the first gear 315. The second motor 314 drives the first gear 315 to rotate. The first gear 315 meshes with the second gear 316. The two screws 34 rotate synchronously in opposite directions, causing the screw plate 35 and the piston plate 32 to move in opposite directions along the interior of their respective desulfurization cylinders 2. The piston plate 32 moves from front to back to fill with sulfur-containing carbon dioxide gas and to desulfurize. The piston plate 32 moves from back to front to discharge carbon dioxide gas and clean the residue inside the desulfurization cylinder 2. The two desulfurization cylinders 2 work synchronously and treat carbon dioxide alternately to improve the desulfurization efficiency.

[0031] In this embodiment, a baffle 313 is provided inside the through hole 311 of the piston plate 32, and a rod 312 is slidably inserted into the through hole 311 at the rear end of the baffle 313. The rod 312 is fixedly connected to the baffle 313. A top column 310 is fixed at the front end of the desulfurization cylinder 2 corresponding to the position of the through hole 311. The piston plate 32 is initially located at the front end of the desulfurization cylinder 2. At this time, the baffle 313 is squeezed by the top column 310, which blocks the through hole 311, and the gas cannot pass through the piston plate 32. As the piston plate 32 moves to the rear end of the desulfurization cylinder 2, sulfur-containing carbon dioxide gas is gradually filled into the desulfurization cylinder 2. The desulfurizing agent and the sulfide of the gas are fully mixed. After the piston plate 32 moves to the rear end of the desulfurization cylinder 2, the rear end of the rod 312 squeezes the inner wall of the desulfurization cylinder 2, thereby pushing the baffle 313 forward and opening the through hole 311. The carbon dioxide gas can be sent out through the through hole 311 and the exhaust port 24.

[0032] In this embodiment, the desulfurization cylinder 2 has a discharge port at the bottom of its front end, and a sealing plate 22 is sealed on the outside of the discharge port of the desulfurization cylinder 2. When the piston plate 32 returns from the tail end of the desulfurization cylinder 2 to a position close to the discharge port, the sealing plate 22 is manually opened. The mixture generated by the mixing of sulfides and desulfurizing agent inside the desulfurization cylinder 2 can be discharged by the pushing of the piston plate 32, so that there are no sulfide residues inside the desulfurization cylinder 2.

[0033] When using the device, sulfur-containing carbon dioxide gas in gas tank 1 is alternately fed into the two desulfurization cylinders 2 under the control of the solenoid valve in connecting pipe 23. The second motor 314 drives the first gear 315 to rotate, and the first gear 315 meshes with the second gear 316. The two screws 34 rotate synchronously in opposite directions, causing the screw plate 35 and piston plate 32 to move in opposite directions along the inside of their respective desulfurization cylinders 2. The piston plate 32 moves from front to back during the process of filling and desulfurizing with sulfur-containing carbon dioxide gas, and from back to front during the process of discharging carbon dioxide gas and cleaning the residue inside the desulfurization cylinder 2. This keeps the two desulfurization cylinders 2 working synchronously and treating carbon dioxide alternately, improving the desulfurization efficiency and driving the system. Multiple sets of nozzles 37 are mounted on shaft 31. The top nozzle is fixedly connected to drive shaft 31 via a fixed bracket 39, maintaining its position. A movable bracket 36 on one side of the fixed bracket 39 is fixedly connected to piston plate 32. As piston plate 32 moves along the surface of drive shaft 31, it drives the movable bracket 36 to slide along movable groove 33. Each movable bracket 36 is connected to another movable bracket 38 with a certain degree of flexibility. Therefore, as piston plate 32 moves, movable brackets 36 and nozzles 37 gradually unfold and are equidistantly distributed on drive shaft 31. During this process, drive shaft 31 drives movable brackets 36, fixed bracket 39, and nozzles 37 to rotate. The first flexible hose 14 connecting the nozzles 37 on fixed bracket 39 is held in place by collar 13. The storage tank 11 is connected, and the desulfurizing agent is delivered to each nozzle 37 through the storage tank 11. The desulfurizing agent is sprayed around the inside of the desulfurization cylinder 2 through the nozzle 37, which improves the treatment efficiency of sulfides in carbon dioxide gas and makes the mixing more uniform. When the piston plate 32 returns to the front end of the desulfurization cylinder 2, the moving frame 36 and the fixed frame 39 will merge back into a circular surface. The piston plate 32 is initially located at the front end of the desulfurization cylinder 2. At this time, the baffle 313 is squeezed by the top column 310, which blocks the through hole 311, and the gas cannot pass through the piston plate 32. As the piston plate 32 moves to the rear end of the desulfurization cylinder 2, sulfur-containing carbon dioxide gas is gradually filled into the desulfurization cylinder 2, and the desulfurizing agent is fully mixed with the sulfides in the gas. After the piston plate 32 moves to the tail end of the desulfurization cylinder 2, the rear end of the insertion rod 312 presses against the inner wall of the desulfurization cylinder 2, thereby pushing the baffle 313 forward and opening the through hole 311. Carbon dioxide gas can be sent out through the through hole 311 and the exhaust hole 24. After the treatment is completed, the carbon dioxide gas is sent out from the exhaust hole 24 at the tail end of the desulfurization cylinder 2. An additional pipe 23 can be connected to receive the purified carbon dioxide gas. When the piston plate 32 returns from the tail end of the desulfurization cylinder 2 to the position near the outlet, the sealing plate 22 is opened manually. The mixture generated by the mixing of sulfides and desulfurizing agent inside the desulfurization cylinder 2 can be discharged by the pushing of the piston plate 32, so that there are no sulfide residues inside the desulfurization cylinder 2.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A desulfurization device for purifying carbon dioxide, comprising a gas tank (1), characterized in that: Two desulfurization cylinders (2) are provided on one side of the gas tank (1). A vertical frame (21) is fixed to the outside of each desulfurization cylinder (2). A drive assembly (3) is provided inside each desulfurization cylinder (2). The drive assembly (3) includes a drive shaft (31). Both ends of the drive shaft (31) are rotatably mounted inside the desulfurization cylinder (2) via bearings. A first motor (12) is fixed to the outer wall of the gas tank (1) at a position corresponding to the drive shaft (31). The output end of the first motor (12) is fixedly connected to the drive shaft (31). Multiple nozzles (37) are arranged in a ring on the surface of the drive shaft (31). A piston plate (32) is slidably sleeved on the surface of the desulfurization cylinder (2), and the piston plate (32) slides along the inner wall of the desulfurization cylinder (2). Four through holes (311) are equidistantly opened on the surface of the piston plate (32). Four exhaust holes (24) are opened at the tail end of the desulfurization cylinder (2), and the exhaust holes (24) are staggered with the through holes (311). Two connecting pipes (23) are symmetrically fixed at the front end of the desulfurization cylinder (2), and the connecting pipes (23) are connected to the inside of the gas box (1). A storage box (11) is fixed on the surface of the gas box (1) at the position corresponding to the two desulfurization cylinders (2), and the storage box (11) stores desulfurizing agent inside.

2. The desulfurization device for purifying carbon dioxide according to claim 1, characterized by: The drive assembly (3) further includes a moving groove (33). The moving groove (33) is provided at equal intervals on the surface of the drive shaft (31). A moving frame (36) is slidably connected inside the moving groove (33). A fixed frame (39) is fixed to the top of the front end of the drive shaft (31), and a nozzle (37) is fixed to the top of both the fixed frame (39) and the moving frame (36).

3. A desulfurization device for purifying carbon dioxide according to claim 2, characterized in that: A second hose (38) is connected between adjacent nozzles (37) via a rotating shaft. A first hose (14) is fixed to the top of the nozzle (37) on the top of the mounting bracket (39), and the first hose (14) extends out of the desulfurization cylinder (2) and is fixedly connected to the storage tank (11).

4. A desulfurization device for purifying carbon dioxide according to claim 3, characterized in that: The storage tank (11) and the desulfurization cylinder (2) are rotatably mounted with collars (13) corresponding to the position of the first hose (14), and the first hose (14) is fixedly connected to the two collars (13).

5. A desulphurization device for purifying carbon dioxide according to claim 4, characterized in that: The drive shaft (31) is hollow inside, and a screw (34) is rotatably mounted inside the drive shaft (31) via a bearing. A screw plate (35) is threaded onto the surface of the screw (34), and the inner ring of the piston plate (32) is rotatably connected to the screw plate (35).

6. A desulphurization device for purifying carbon dioxide according to claim 5, characterized in that: A second gear (316) is fixed at the protruding end of the screw (34) of the upper desulfurization cylinder (2) of the vertical frame (21), and a first gear (315) is fixed at the protruding end of the screw (34) of the lower desulfurization cylinder (2) of the vertical frame (21). The first gear (315) meshes with the second gear (316). A second motor (314) is fixed on the outside of the vertical frame (21) corresponding to the first gear (315), and the output end of the second motor (314) is fixedly connected to the first gear (315).

7. A desulphurization device for purifying carbon dioxide according to claim 6, characterized in that: The piston plate (32) has a baffle (313) inside the through hole (311), and a rod (312) is slidably inserted into the through hole (311) at the rear end of the baffle (313). The rod (312) is fixedly connected to the baffle (313), and a top column (310) is fixed at the front end of the desulfurization cylinder (2) at the position corresponding to the through hole (311).

8. A desulfurization device for purifying carbon dioxide according to claim 7, characterized in that: The desulfurization cylinder (2) has an outlet at the bottom of its front end, and a sealing plate (22) is installed on the outside of the outlet of the desulfurization cylinder (2).

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