Thermal power plant boiler tail gas cooling desulfurization treatment device

Abstract

The invention discloses a thermal power plant boiler tail gas cooling desulfurization treatment device, and belongs to the technical field of tail gas treatment equipment, the thermal power plant boiler tail gas cooling desulfurization treatment device comprises a reaction liquid storage bin, one side of the outer wall of the reaction liquid storage bin is provided with a dosing box, and the top of the reaction liquid storage bin is provided with a tower-shaped treatment bin; a water distributor is mounted at the top in the reaction liquid storage bin; a fixed cylinder is mounted at the bottom of the water distributor, and a movable guide cylinder is arranged at the bottom of the fixed cylinder. A second smoke outlet is formed in the air inlet cylinder, and a first smoke outlet is formed in the movable guide cylinder, so that smoke can enter through the air inlet cylinder, enter the fixed cylinder and the movable guide cylinder through the second smoke outlet, flow from top to bottom and then flow from bottom to top through the first smoke outlet; and in the process, the flue gas can move in a reciprocating manner, so that the flue gas can fully react with the reaction liquid sprayed by the water distributor, and the reaction sufficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of tail gas treatment equipment, in particular to a cooling and desulfurization treatment device for tail gas from a boiler in a thermal power plant. Background Art

[0002] Thermal power is one of the main ways of producing electricity. It generally obtains energy through the combustion of fossil fuels, which is further converted into electricity. Therefore, in the actual production process, a large amount of exhaust gas generated by the combustion of fossil fuels will be generated. These exhaust gases contain a large amount of substances that pollute the environment, such as sulfur, and the overall temperature is high. Direct discharge will cause serious harm to the environment. Therefore, it is necessary to cool and desulfurize it before implementing subsequent discharge tasks. The more conventional method currently used is to spray it with a liquid containing reactive chemicals to achieve the desulfurization and cooling task.

[0003] When the existing thermal power plant boiler tail gas cooling and desulfurization treatment device is in use, its general air outlet part is set at the top of the equipment, and the air inlet part is set at the bottom of the equipment. The flue gas flows from bottom to top, and is subjected to spray treatment tasks in this process. However, this method allows the flue gas to only move from bottom to top in the equipment, which makes it easy for the flue gas to have insufficient contact with the spray liquid, resulting in incomplete cooling and desulfurization. Increasing the overall height of the equipment to increase its contact process will further increase the height of the equipment, thereby increasing the equipment cost and the difficulty of construction. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides a thermal power plant boiler tail gas cooling and desulfurization treatment device, which solves the problem that the flue gas in the existing thermal power plant boiler tail gas cooling and desulfurization treatment device is prone to insufficient contact reaction with the spray liquid in the equipment.

[0005] To achieve the above object, the present invention provides the following technical solution: a thermal power plant boiler tail gas cooling desulfurization treatment device, comprising a reaction liquid storage bin, a dosing box is installed on one side of the outer wall of the reaction liquid storage bin, a tower-type treatment bin is installed on the top of the reaction liquid storage bin, and a water distributor is installed on the top of the reaction liquid storage bin;

[0006] A fixed cylinder is installed at the bottom of the water distributor, and a movable guide cylinder is arranged at the bottom of the fixed cylinder, and a first smoke exhaust port is evenly opened at the middle position of the outer side of the movable guide cylinder;

[0007] A mounting protection bin is installed at the middle position of the bottom of the water distributor, an air intake cylinder is penetrated on one side of the mounting protection bin, and the air intake cylinders penetrate the fixed cylinder and the tower-type processing bin respectively, a first bevel gear body is installed on the outer side of one end of the air intake cylinder close to the mounting protection bin, and two groups of second bevel gear bodies are arranged on the outer side of one end of the air intake cylinder away from the first bevel gear body, and two groups of second smoke exhaust ports are opened at the bottom of the outer wall of the air intake cylinder;

[0008] A transmission mechanism for driving the movable guide tube to rotate is arranged in the installation protection compartment;

[0009] The reaction liquid storage bin is provided with a liquid infusion mechanism for conveying the reaction liquid into the water distributor;

[0010] The tower-type processing chamber is provided with a driving mechanism for driving the air inlet cylinder to rotate.

[0011] As a further solution of the present invention: the central axis of the movable guide tube coincides with the central axis of the fixed tube, and a gap is left between the movable guide tube and the tower-type processing chamber.

[0012] As a further solution of the present invention: second spoiler connecting plates are evenly installed on the outer side of the movable guide tube, and a second scraper is installed at one end of the second spoiler connecting plate away from the movable guide tube.

[0013] As a further solution of the present invention: first scraping brush members are installed on both sides of the bottom of the reaction liquid storage bin, and the cross-sectional shape of the first scraping brush member is "U"-shaped.

[0014] As a further solution of the present invention: a fixing cylinder is provided at one end of the air inlet cylinder away from the installation protection bin, and the fixing cylinder is fixedly connected to the tower-type processing bin via a mounting frame.

[0015] As a further solution of the present invention: the transmission mechanism includes an installation shaft, the installation shaft passes through the bottom of the installation protection bin, a third bevel gear body is installed on the top of the installation shaft, and a first spoiler connecting plate is evenly installed on the outside of the installation shaft, and the end of the first spoiler connecting plate away from the installation shaft is connected to the movable guide tube.

[0016] As a further solution of the present invention: the third bevel gear body and the first bevel gear body are perpendicular to each other, and the third bevel gear body and the first bevel gear body are meshingly connected.

[0017] As a further solution of the present invention: the infusion mechanism includes a water pump, which is installed on the side of the outer wall of the reaction liquid storage bin away from the dosing box, the output end of the water pump is connected to the water distributor, the input end of the water pump is connected to the filter bin, and the filter bin is located at the bottom of the reaction liquid storage bin.

[0018] As a further solution of the present invention: the driving mechanism includes a motor, which is installed on one side of the outer wall of the tower-type processing chamber close to the second bevel gear body, the output end of the motor is connected to an output shaft, and an incomplete bevel gear is installed on the top of the output shaft.

[0019] As a further solution of the present invention: the incomplete bevel gear is perpendicular to the two groups of the second bevel gear bodies respectively, and the incomplete bevel gear is located at a position meshing with the two groups of the second bevel gear bodies.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. A second smoke exhaust port is provided on the air inlet tube and a first smoke exhaust port is provided on the movable guide tube, so that the smoke can enter through the air inlet tube and enter the interior of the fixed tube and the movable guide tube through the second smoke exhaust port, and flow from top to bottom, and then flow from bottom to top through the first smoke exhaust port, and finally be discharged through the top of the tower-type processing chamber. During this process, the smoke can achieve reciprocating movement, and can more fully react with the reaction liquid sprayed by the water distributor, thereby increasing the adequacy of the reaction.

[0022] 2. A driving mechanism for driving the air inlet cylinder to rotate is provided on the reaction liquid storage bin, and a transmission mechanism for driving the movable guide cylinder to rotate is provided on the installation protection bin. During use, the air inlet cylinder can rotate back and forth, and the movable guide cylinder can also rotate back and forth, so that the smoke ejected from the second smoke exhaust port can be dispersed more quickly and evenly, and the smoke ejected from the first smoke exhaust port can also complete the task of more rapid and even dispersion, thereby further increasing the contact reaction between the smoke and the reaction liquid.

[0023] 3. The mounting shaft is connected to the movable guide tube through the first spoiler connecting plate, and the movable guide tube is provided with a second spoiler connecting plate and a second scraper. The reaction liquid storage bin is provided with a first scraper, so that when the movable guide tube reciprocates during use, the first spoiler connecting plate and the second spoiler connecting plate can disturb the passing flue gas, so that the flue gas path is further increased to ensure the reaction effect. At the same time, the second scraper can continuously scrape and clean the inner wall of the tower-type treatment bin, and the first scraper can scrape and clean the inner and outer walls of the movable guide tube, thereby reducing the easy occurrence of material adhesion and scaling thereon. The further rotation of the movable guide tube and the second spoiler connecting plate can further stir the reaction liquid inside the reaction liquid storage bin, so that the reagents are quickly mixed after adding the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a main structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0026] Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0027] Figure 4 The present invention Figure 2 A schematic diagram of the enlarged structure at B;

[0028] Figure 5 It is a side cross-sectional structural schematic diagram of the present invention;

[0029] Figure 6 It is a schematic diagram of a top cross-sectional structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the main structure of the air intake cylinder of the present invention.

[0031] In the figure: 1. reaction liquid storage bin; 2. dosing box; 3. tower-type treatment bin; 4. water distributor; 5. fixed cylinder; 6. movable guide cylinder; 7. first smoke exhaust port; 8. first scraper and brush; 9. installation protection bin; 10. air intake cylinder; 11. first bevel gear body; 12. second bevel gear body; 13. second smoke exhaust port; 14. fixed cylinder; 15. mounting frame; 16. mounting shaft; 17. third bevel gear body; 18. first spoiler connecting plate; 19. second spoiler connecting plate; 20. second scraper and brush; 21. water pump; 22. filter bin; 23. motor; 24. output shaft; 25. incomplete bevel gear. DETAILED DESCRIPTION

[0032] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0033] like Figure 1-Figure 7 As shown, the present invention provides a technical solution:

[0034] A thermal power plant boiler tail gas cooling desulfurization treatment device comprises a reaction liquid storage bin 1, a drug adding box 2 is installed on one side of the outer wall of the reaction liquid storage bin 1, a tower-type treatment bin 3 is installed on the top of the reaction liquid storage bin 1, a water distributor 4 is installed on the top of the reaction liquid storage bin 1, the drug adding box 2 is connected to the reaction liquid storage bin 1, and the drug adding box 2 is operated during drug adding, and a valve can be added to the bottom of the drug adding box 2. When in use, an appropriate amount of reaction liquid is injected into the reaction liquid storage bin 1;

[0035] A fixed cylinder 5 is installed at the bottom of the water distributor 4, and a movable guide cylinder 6 is arranged at the bottom of the fixed cylinder 5. A first smoke exhaust port 7 is evenly opened at the middle position of the outer side of the movable guide cylinder 6. The movable guide cylinder 6 and the fixed cylinder 5 are sealed and rotatably connected. During use, the movable guide cylinder 6 can rotate, so that the smoke in the movable guide cylinder 6 can be more quickly and evenly distributed between the movable guide cylinder 6 and the tower-type processing chamber 3 when it is discharged through the first smoke exhaust port 7;

[0036] It should be noted that, when in use, the water distributor 4 can simultaneously enter the movable guide tube 6 and the tower-type processing chamber 3 when discharging liquid downwards. At the same time, when in use, the water level of the reaction liquid injected into the reaction liquid storage chamber 1 is lower than the height of the first smoke exhaust port 7, so that the smoke can be discharged through the first smoke exhaust port 7;

[0037] The outer side of the movable guide tube 6 is evenly equipped with a second spoiler connecting plate 19, and the second scraper 20 is installed at one end of the second spoiler connecting plate 19 away from the movable guide tube 6, so that when the movable guide tube 6 rotates, the second spoiler connecting plate 19 can disturb the flue gas between the tower-type processing bin 3 and the movable guide tube 6 to increase its path, and at the same time, the second scraper 20 can scrape and clean most of the inner wall of the tower-type processing bin 3 to avoid the adhesion and scaling of substances;

[0038] First scraping brush members 8 are installed on both sides of the bottom of the reaction liquid storage bin 1, and the cross-sectional shape of the first scraping brush member 8 is "U"-shaped. The inner side wall of the first scraping brush member 8 is kept in contact with the movable guide tube 6, so that when the movable guide tube 6 rotates, the first scraping brush member 8 can complete the task of scraping and cleaning most of the inner and outer walls of the movable guide tube 6. At the same time, the first scraping brush member 8 is located on both sides of the movable guide tube 6, and the second spoiler connecting plate 19 is located at both ends of the outer side wall of the movable guide tube 6. The rotation range of the movable guide tube 6 is less than 180°, so there will be no mutual interference;

[0039] A mounting protection bin 9 is installed at the middle position of the bottom of the water distributor 4, an air inlet cylinder 10 is penetrated on one side of the mounting protection bin 9, and the air inlet cylinder 10 penetrates the fixed cylinder 5 and the tower-type processing bin 3 respectively, a first cone gear body 11 is installed on the outer side of the air inlet cylinder 10 close to the mounting protection bin 9, and two groups of second cone gear bodies 12 are arranged on the outer side of the end of the air inlet cylinder 10 away from the first cone gear body 11, two groups of second smoke exhaust ports 13 are opened at the bottom of the outer wall of the air inlet cylinder 10, and the air inlet cylinder 10 is respectively connected to the mounting protection bin 9. 9. The fixed cylinder 5 and the tower-type processing chamber 3 are sealed and rotatably connected. When in use, the smoke enters through the air intake cylinder 10 and is discharged to the inside of the fixed cylinder 5 and the movable guide cylinder 6 through the second smoke exhaust port 13, so that the smoke will first flow from top to bottom, then be discharged through the first smoke exhaust port 7, and then be discharged from bottom to top, completing the reciprocating path. Furthermore, during use, the reciprocating rotation of the air intake cylinder 10 will cause the second smoke exhaust port 13 to continuously adjust the exhaust angle of the smoke, thereby spraying it more quickly and evenly;

[0040] A fixed cylinder 14 is provided at one end of the air inlet cylinder 10 away from the installation protection bin 9, and the fixed cylinder 14 is fixedly connected to the tower-type processing bin 3 through a mounting frame 15. The fixed cylinder 14 and the air inlet cylinder 10 are sealed and rotatably connected. When in use, the fixed cylinder 14 is fixed relative to the tower-type processing bin 3, which is convenient for the staff to connect and install the fixed cylinder 14 with the smoke output device;

[0041] A transmission mechanism for driving the movable guide tube 6 to rotate is provided in the installation protection bin 9, and the transmission mechanism includes an installation shaft 16, and the installation shaft 16 runs through the bottom of the installation protection bin 9. A third bevel gear body 17 is installed on the top of the installation shaft 16, and a first spoiler connecting plate 18 is evenly installed on the outer side of the installation shaft 16, and the end of the first spoiler connecting plate 18 away from the installation shaft 16 is connected to the movable guide tube 6, the third bevel gear body 17 is perpendicular to the first bevel gear body 11, and the third bevel gear body 17 is meshed with the first bevel gear body 11, and the installation shaft 16 The mounting shaft 16 is connected to the reaction liquid storage bin 1 through a bearing, so that the mounting shaft 16 can cooperate with the movable guide tube 6 to further support the interior of the tower-type processing bin 3 and the reaction liquid storage bin 1, so that the overall structural strength of the tower-type processing bin 3 and the reaction liquid storage bin 1 is higher. When in use, when the air inlet tube 10 reciprocates, it can drive the mounting shaft 16 to complete the reciprocating rotation, and the mounting shaft 16 drives the movable guide tube 6 to complete the reciprocating rotation through the first spoiler connecting plate 18, and at the same time, the first spoiler connecting plate 18 can further complete the disturbance task of the flue gas flowing through the movable guide tube 6;

[0042] The reaction liquid storage bin 1 is provided with an infusion mechanism for conveying the reaction liquid into the water distributor 4, and the infusion mechanism includes a water pump 21, which is installed on the side of the outer wall of the reaction liquid storage bin 1 away from the dosing box 2, and the output end of the water pump 21 is connected with the water distributor 4, and the input end of the water pump 21 is connected with the filter bin 22, and the filter bin 22 is located at the bottom of the reaction liquid storage bin 1. The water pump 21 can continuously convey the reaction liquid filtered by the filter bin 22 in the reaction liquid storage bin 1 to the water distributor 4, and finally spray it out through the water distributor 4 to react with the flue gas. A water level detection part or a transparent window part for observing the water level can be set in the reaction liquid storage bin 1, so that the staff can control the water level in the reaction liquid storage bin 1 in real time;

[0043] A driving mechanism for driving the air intake cylinder 10 to rotate is provided on the tower-type processing chamber 3, and the driving mechanism includes a motor 23. The motor 23 is installed on the side of the outer wall of the tower-type processing chamber 3 close to the second bevel gear body 12. The output end of the motor 23 is connected to the output shaft 24, and the top of the output shaft 24 is installed with an incomplete bevel gear 25. The incomplete bevel gears 25 are respectively perpendicular to the two groups of second bevel gear bodies 12, and the incomplete bevel gears 25 are located at the position meshing with the two groups of second bevel gear bodies 12. When the motor 23 drives the output shaft 24 and the incomplete bevel gear 25 to rotate, the half-circle gear block on the incomplete bevel gear 25 can intermittently mesh with one group of the two groups of second bevel gear bodies 12, thereby driving the air intake cylinder 10 to complete the reciprocating rotation task. During application, a protective cover can be added to the meshing point of the second smoke exhaust port 13 and the incomplete bevel gear 25 and the second bevel gear body 12 to avoid erosion by the external environment.

[0044] The working principle of the present invention is as follows: the device is powered by a battery, a proper amount of reaction liquid is added to the reaction liquid storage bin 1, the fixed cylinder 14 is connected to the flue gas output device, and the flue gas output device here can be a preliminary treatment device for boiler tail gas in a thermal power plant, such as a large particle impurity filtering device, etc., and the exhaust part at the top of the tower-type treatment bin 3 is connected to the subsequent flue gas treatment device;

[0045] When in use, turn on the water pump 21, the water pump 21 continuously transports the reaction liquid inside the reaction liquid storage bin 1 to the water distributor 4, and the water distributor 4 sprays it to the movable guide tube 6 and the inside of the tower-type processing bin 3, the flue gas enters the air inlet tube 10 through the fixed tube 14, and is sprayed into the movable guide tube 6 through the second smoke exhaust port 13. As the subsequent flue gas continues to enter, the flue gas flows from top to bottom, and is sprayed between the tower-type processing bin 3 and the movable guide tube 6 through the first smoke exhaust port 7, and finally flows to the subsequent processing equipment through the top of the tower-type processing bin 3. In this process, the flue gas will form a reciprocating flow, and will be sprayed with the reaction liquid throughout the whole process, thereby increasing the sufficiency of the reaction. The reaction liquid falls back into the reaction liquid storage bin 1 under the action of gravity, and is transported to the water distributor 4 by the water pump 21 for recycling. When the reaction liquid is not effective enough after a period of use, reaction drugs can be added to the reaction liquid storage bin 1 through the drug adding box 2;

[0046] During the above-mentioned use process, the motor 23 is further turned on, and the motor 23 drives the output shaft 24 and the incomplete bevel gear 25 to rotate continuously. As mentioned above, at this time, the air intake cylinder 10 can complete the reciprocating rotation, so that the second smoke exhaust port 13 reciprocates to adjust the smoke exhaust angle, so that the smoke can more quickly and evenly cover the top of the movable guide cylinder 6, further increasing the adequacy of subsequent spraying. At the same time, as mentioned above, through the meshing connection between the third bevel gear body 17 and the first bevel gear body 11, the movable guide cylinder 6 can continuously reciprocate, so that when the smoke is discharged through the first smoke exhaust port 7, it can also more quickly and evenly cover the tower-shaped Furthermore, between the processing chamber 3 and the movable guide tube 6, during the rotation of the movable guide tube 6, the first spoiler connecting plate 18 and the second spoiler connecting plate 19 will continuously disturb the path of the flue gas, so that the path of the flue gas is longer and it can more fully contact and react with the reaction liquid. At the same time, the second scraper 20 will form a scraping effect on the inside of the tower-type processing chamber 3, and form a stirring effect on the reaction inside the reaction liquid storage chamber 1. Similarly, during the rotation of the movable guide tube 6, the first scraper 8 will form a scraping and cleaning effect on the inner and outer walls of the movable guide tube 6, thereby effectively reducing the adhesion and scaling of substances.

[0047] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A thermal power plant boiler tail gas cooling and desulfurization treatment device, comprising a reaction liquid storage bin (1), characterized in that: A drug adding box (2) is installed on one side of the outer wall of the reaction liquid storage bin (1), a tower-type processing bin (3) is installed on the top of the reaction liquid storage bin (1), and a water distributor (4) is installed on the top of the interior of the reaction liquid storage bin (1); A fixed cylinder (5) is installed at the bottom of the water distributor (4), and a movable guide cylinder (6) is arranged at the bottom of the fixed cylinder (5), and a first smoke exhaust port (7) is evenly provided at the middle position of the outer side of the movable guide cylinder (6); A mounting protection bin (9) is installed at the middle position of the bottom of the water distributor (4), an air intake cylinder (10) is penetrated on one side of the mounting protection bin (9), and the air intake cylinder (10) penetrates the fixed cylinder (5) and the tower-type processing bin (3) respectively, a first cone gear body (11) is installed on the outer side of one end of the air intake cylinder (10) close to the mounting protection bin (9), and two groups of second cone gear bodies (12) are arranged on the outer side of one end of the air intake cylinder (10) away from the first cone gear body (11), and two groups of second smoke exhaust ports (13) are opened at the bottom of the outer wall of the air intake cylinder (10); A transmission mechanism for driving the movable guide cylinder (6) to rotate is arranged in the installation protection chamber (9); The reaction liquid storage bin (1) is provided with a liquid infusion mechanism for conveying the reaction liquid into the water distributor (4); The tower-shaped processing chamber (3) is provided with a driving mechanism for driving the air inlet cylinder (10) to rotate.

2. A thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: The central axis of the movable guide tube (6) coincides with the central axis of the fixed tube (5), and a gap is left between the movable guide tube (6) and the tower-type processing chamber (3).

3. A thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: The outer side of the movable guide tube (6) is evenly equipped with a second spoiler connecting plate (19), and one end of the second spoiler connecting plate (19) away from the movable guide tube (6) is equipped with a second scraper (20).

4. A thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: First scraping brush members (8) are installed on both sides of the bottom of the reaction liquid storage bin (1), and the cross-sectional shape of the first scraping brush member (8) is "U"-shaped.

5. The thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: A fixing cylinder (14) is provided at one end of the air inlet cylinder (10) away from the installation protection bin (9), and the fixing cylinder (14) is fixedly connected to the tower-type processing bin (3) via a mounting frame (15).

6. A thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: The transmission mechanism comprises a mounting shaft (16), the mounting shaft (16) passes through the bottom of the mounting protection chamber (9), a third bevel gear body (17) is mounted on the top of the mounting shaft (16), and a first spoiler connecting plate (18) is evenly mounted on the outer side of the mounting shaft (16), and an end of the first spoiler connecting plate (18) away from the mounting shaft (16) is connected to the movable guide tube (6).

7. A thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 6, characterized in that: The third bevel gear body (17) and the first bevel gear body (11) are perpendicular to each other, and the third bevel gear body (17) and the first bevel gear body (11) are meshingly connected.

8. The thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: The infusion mechanism comprises a water pump (21), which is installed on a side of the outer wall of the reaction liquid storage bin (1) away from the drug adding box (2), the output end of the water pump (21) is connected to the water distributor (4), and the input end of the water pump (21) is connected to the filter bin (22), and the filter bin (22) is located at the bottom of the reaction liquid storage bin (1).

9. The thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 1, characterized in that: The driving mechanism comprises a motor (23), the motor (23) being mounted on a side of the outer wall of the tower-type processing chamber (3) close to the second bevel gear body (12), the output end of the motor (23) being connected to an output shaft (24), and an incomplete bevel gear (25) being mounted on the top end of the output shaft (24).

10. A thermal power plant boiler tail gas cooling and desulfurization treatment device according to claim 9, characterized in that: The incomplete bevel gear (25) is respectively perpendicular to the two groups of the second bevel gear bodies (12), and the incomplete bevel gear (25) is located at a position meshing with the two groups of the second bevel gear bodies (12).

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