Desulfurizing tower with self-cleaning structure

Abstract

The present invention discloses a desulfurization tower with a self-cleaning structure, and relates to the technical field of desulfurization towers, the desulfurization tower comprises a slurry pool, a desulfurization tower body and an exhaust pipe, the top end of the slurry pool is connected with the desulfurization tower body, and the top end of the outer wall of the desulfurization tower body is welded with a protection box. When the desulfurizing tower with the self-cleaning structure is used, the cleaning brush plate rubs with the inner wall of the tower body of the desulfurizing tower through the cleaning mechanism, so that dirt adhered to the inner wall of the tower body of the desulfurizing tower is automatically cleaned and is prevented from influencing the work of the desulfurizing tower, and the mixing area between flue gas and a desulfurizing agent is increased through the auxiliary mechanism, so that the desulfurizing efficiency of the desulfurizing tower is improved; the desulfurization agent in the slurry pond is stirred through the stirring rod, then the desulfurization agent is prevented from being precipitated, small-particle impurities in the flue gas are filtered through the filtering mechanism, then the small-particle impurities in the flue gas are prevented from being discharged into the air to influence the environment, and therefore when the separation tower is used, the effect of conveniently filtering the flue gas is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of desulfurization towers, in particular to a desulfurization tower with a self-cleaning structure. Background Art

[0002] Desulfurization tower, also known as absorption tower, is a pollution control device used to reduce the emission of sulfide in flue gas. Desulfurization tower is usually composed of reaction chamber, washing chamber, collection chamber and cleaning chamber. The application field of desulfurization tower is very wide, including but not limited to thermal power plants, steel mills, glass factories burning heavy oil and all production lines that can produce SO2 tail gas. These production lines will produce a large amount of SO2 due to combustion during the production process. Desulfurization tower can effectively reduce the emission of pollutants by desulfurizing its flue gas.

[0003] In order to desulfurize the flue gas, when a desulfurization tower is needed for assistance, the output pump is first started to guide the desulfurizer in the slurry pool to the spray pipe, and then the desulfurizer is sprayed out through the atomizing nozzle to contact the flue gas, so that the sulfide in the flue gas reacts with the desulfurizer to generate compounds such as sulfate or calcium sulfate, and then the flue gas is desulfurized, and then the desulfurized flue gas is discharged through the exhaust pipe; but in the process of spraying the desulfurizer on the desulfurization tower, a large amount of spray liquid will adhere to the inner wall of the desulfurization tower. As the use time increases, the acidic substances generated during the spraying process will adhere to the inner wall of the desulfurization tower, and the cleaning of the inner wall of the desulfurization tower is extremely inconvenient, which leads to the formation of a scale layer of acidic substances on the inner wall of the desulfurization tower, which in turn hinders the full contact between the spray liquid and the flue gas, reduces the efficiency of the desulfurization reaction, and thus affects the use of the desulfurization tower. Summary of the invention

[0004] The object of the present invention is to provide a desulfurization tower with a self-cleaning structure to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a desulfurization tower with a self-cleaning structure, comprising a slurry pool, a desulfurization tower body and an exhaust pipe, the top of the slurry pool is connected to the desulfurization tower body, and a protective box is welded to the top of the outer wall of the desulfurization tower body, and exhaust pipes are docked on both sides of the top of the desulfurization tower body, and an intake pipe is docked on one side of the bottom end of the outer wall of the desulfurization tower body, the bottom end of the slurry pool is connected to an output pump through a derivation pipeline, and the top of the output pump is connected to an output pipeline, and the top of the output pipeline is docked with a booster pump, one side of the outer wall of the booster pump is connected to a spray pipeline, and an atomizing nozzle is installed on the inner wall of the spray pipeline, and the desulfurization tower body is connected to a spray pipeline. A cleaning mechanism is arranged on the inner wall of the tower body, and the cleaning mechanism includes a driving motor, a fixed gear, a transmission gear, an electric push rod, a lifting gear, a threaded column, a cleaning brush plate, a support frame and a cleaning scraper rod. A driving motor is installed on the top of the inner wall of the protective box, and the output end of the driving motor is connected to the fixed gear, and the two sides of the outer wall of the fixed gear are meshed and connected with the transmission gear, the middle part of the top of the transmission gear is connected to the electric push rod, and the outer wall of the transmission gear is meshed and connected with the lifting gear, the inside of the lifting gear is connected to the threaded column, and the bottom end of the threaded column is connected to the support frame through a bearing seat, and the bottom end of the cleaning scraper rod is connected to the threaded column away from the pressure pump.

[0006] Preferably, the outer wall of the support frame is welded to the inner wall of the desulfurization tower body, and the bottom end of the booster pump is connected to the outer wall of the desulfurization tower body through a support platform.

[0007] Preferably, the top end of the electric push rod is connected to the inner wall of the protection box through a bearing seat, and the bottom end of the spray pipe is connected to the inner wall of the desulfurization tower body through a support plate.

[0008] Preferably, an auxiliary mechanism is provided on the outer wall of the fixed gear, and the auxiliary mechanism includes a rotating rod, a demister, a rotating column, a rotating plate, an auxiliary plate, a stirring column, a stirring rod, a fixed column and a spoiler, and a rotating rod is welded in the middle of the bottom end of the fixed gear.

[0009] Preferably, a demister is sleeved on the middle portion of the outer wall of the rotating rod, and a rotating column is butt-jointed to the bottom end of the rotating rod.

[0010] Preferably, a rotating plate is sleeved in the middle of the outer wall of the rotating column, and an auxiliary plate is welded in the middle of the outer wall of the rotating plate.

[0011] Preferably, a stirring column is welded to the bottom end of the rotating column, and a stirring rod is sleeved on the middle part of the outer wall of the stirring column.

[0012] Preferably, fixing columns are welded on both sides of the bottom end of the inner wall of the slurry pool, and spoilers are welded on the top ends of the outer walls of the fixing columns.

[0013] Preferably, a filter mechanism is provided on the outer wall of the exhaust pipe, and the filter mechanism includes a limit bar, a filter box and a filter net, and one side of the outer wall of the exhaust pipe is connected to the limit bar.

[0014] Preferably, the limiting strip is connected to a filter box via a mounting groove, and a filter screen is connected inside the filter box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when the desulfurization tower with a self-cleaning structure is in use, the cleaning brush plate is rubbed against the inner wall of the desulfurization tower body through the cleaning mechanism, thereby automatically cleaning the dirt adhered to the inner wall of the desulfurization tower body to prevent it from affecting the operation of the desulfurization tower, and the mixing area between the flue gas and the desulfurizer is increased through the auxiliary mechanism, thereby improving the desulfurization efficiency of the desulfurization tower, and the desulfurizer inside the slurry pool is mixed by the stirring rod to prevent the desulfurizer from precipitating, and the small particle impurities in the flue gas are filtered through the filtering mechanism to prevent the small particle impurities in the flue gas from being discharged into the air and affecting the environment, so that when the desulfurization tower is used, it is convenient to filter the flue gas.

[0016] 1. In the process of desulfurization of flue gas through the desulfurization tower, the driving motor is first started to drive the fixed gear to rotate, and then the fixed gear drives the lifting gear to rotate through the transmission gear. The lifting gear rotates and drives the threaded column to rotate. The rotation makes the cleaning brush plate move upward. At this time, the cleaning brush plate rubs against the inner wall of the desulfurization tower body, and then automatically cleans the dirt adhering to the inner wall of the desulfurization tower body to prevent it from affecting the work of the desulfurization tower, so as to facilitate the cleaning of the inner wall of the desulfurization tower when the desulfurization tower is in use;

[0017] 2. In the process of desulfurization of flue gas through the desulfurization tower, when the fixed gear rotates, the rotating column is driven to rotate through the rotating rod, and then the rotating column rotates so that the rotating plate drives the auxiliary plate to rotate, thereby increasing the mixing area between the flue gas and the desulfurizer, and improving the desulfurization efficiency of the desulfurization tower; and when the rotating column rotates, it also drives the stirring column to rotate together, and then the stirring rod stirs the desulfurizer inside the slurry pool to prevent the desulfurizer from precipitating, so that when the desulfurization tower is used, it plays a role in preventing precipitation and improving the desulfurization efficiency;

[0018] 3. In the process of desulfurization of flue gas through the desulfurization tower, the filter box is first connected to the limit bar, and then the filter box is limited to the outer wall of the exhaust pipe. Then, when the exhaust pipe discharges flue gas, the small particles of impurities in the flue gas are filtered through the filter net, and then the small particles of impurities in the flue gas are prevented from being discharged into the air and affecting the environment, so that it is convenient to filter the flue gas when it is used out of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional cutaway structure of the present invention;

[0021] Figure 3It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of a three-dimensional cutaway structure of the protection box of the present invention when viewed from above;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the exhaust pipe of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the filtering mechanism of the present invention.

[0026] In the figure: 1. slurry pool; 2. desulfurization tower body; 3. protective box; 4. exhaust pipe; 5. intake pipe; 6. output pump; 7. output pipeline; 8. booster pump; 9. spray pipeline; 10. atomizing nozzle; 11. cleaning mechanism; 1101. drive motor; 1102. fixed gear; 1103. transmission gear; 1104. electric push rod; 1105. lifting gear; 1106. threaded column; 1107. cleaning brush Plate; 1108, support frame; 1109, cleaning scraper; 12, auxiliary mechanism; 1201, rotating rod; 1202, demister; 1203, rotating column; 1204, rotating plate; 1205, auxiliary plate; 1206, stirring column; 1207, stirring rod; 1208, fixed column; 1209, spoiler; 13, filtering mechanism; 1301, limiting strip; 1302, filter box; 1303, filter net. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 4The present invention provides a technical solution: a desulfurization tower with a self-cleaning structure, comprising a slurry pool 1, a desulfurization tower body 2 and an exhaust pipe 4, the top of the slurry pool 1 is connected to the desulfurization tower body 2, and a protection box 3 is welded to the top of the outer wall of the desulfurization tower body 2, and the exhaust pipes 4 are connected to both sides of the top of the desulfurization tower body 2, and the air intake pipe 5 is connected to one side of the bottom end of the outer wall of the desulfurization tower body 2, the bottom end of the slurry pool 1 is connected to an output pump 6 through a lead-out pipeline, and the top of the output pump 6 is connected to an output pipeline 7, and the top of the output pipeline 7 is connected to a pressure pump 8, and the pressure pump 8 is connected to the top of the pressure pump 8. A spray pipe 9 is connected to one side of the outer wall of the pump 8, and an atomizing nozzle 10 is installed on the inner wall of the spray pipe 9. A cleaning mechanism 11 is arranged on the inner wall of the desulfurization tower body 2, and the cleaning mechanism 11 includes a driving motor 1101, a fixed gear 1102, a transmission gear 1103, an electric push rod 1104, a lifting gear 1105, a threaded column 1106, a cleaning brush plate 1107, a support frame 1108 and a cleaning scraper 1109. A driving motor 1101 is installed on the top of the inner wall of the protective box 3, and the output end of the driving motor 1101 is connected to a fixed nozzle 1108. The fixed gear 1102 is meshed with a transmission gear 1103 on both sides of the outer wall of the fixed gear 1102, an electric push rod 1104 is connected to the middle of the top of the transmission gear 1103, and a lifting gear 1105 is meshed with the outer wall of the transmission gear 1103, a threaded column 1106 is connected to the inside of the lifting gear 1105, and the bottom end of the threaded column 1106 is connected to a support frame 1108 through a bearing seat, and the bottom end of the cleaning scraper 1109 is connected to the threaded column 1106 away from the pressure pump 8; the outer wall of the support frame 1108 is connected to the desulfurization tower The inner walls of the body 2 are welded, and the bottom end of the pressure pump 8 is connected to the outer wall of the desulfurization tower body 2 through a support platform; the top of the electric push rod 1104 is connected to the inner wall of the protection box 3 through a bearing seat, and the bottom end of the spray pipe 9 is connected to the inner wall of the desulfurization tower body 2 through a support plate; the atomizing nozzles 10 are distributed at equal angles on the spray pipe 9, the outer wall of the cleaning scraper 1109 fits with the top of the protection box 3, a desulfurizer is arranged inside the slurry pool 1, and an input pipe is connected to one side of the outer wall of the slurry pool 1, and the cleaning brush plate 1107 and the desulfurization tower body 2 are slidably connected.

[0029] In specific implementation, when the inner wall of the desulfurization tower body 2 needs to be cleaned during the process of desulfurization treatment of flue gas through the desulfurization tower, the electric push rod 1104 is started first. Since the output end of the electric push rod 1104 is connected to the transmission gear 1103, the electric push rod 1104 extends to drive the transmission gear 1103 to move downward until the transmission gear 1103 is meshed with the fixed gear 1102 and the lifting gear 1105. Then the drive motor 1101 is started to drive the fixed gear 1102 to rotate. Since the fixed gear 1102 and the transmission gear 1103 are meshed at this time, the fixed gear 1102 rotates to drive the transmission gear 1103 to rotate, and then the transmission gear 1103 rotates to drive the lifting gear 1105 to rotate. Since the electric push rod 1104 and the protective box 3 are rotationally connected, the electric push rod 1104 will not hinder the rotation of the transmission gear 1103.

[0030] Because the lifting gear 1105 is internally connected to the threaded column 1106, the lifting gear 1105 rotates to drive the threaded column 1106 on the support frame 1108 to rotate, and because the threaded column 1106 and the cleaning brush plate 1107 are threadedly connected, the threaded column 1106 rotates to move the cleaning brush plate 1107 upward, and the cleaning brush plate 1107 rubs against the inner wall of the desulfurization tower body 2 when moving, thereby automatically cleaning the dirt adhered to the inner wall of the desulfurization tower body 2 to prevent it from affecting the operation of the desulfurization tower;

[0031] Because the top of the threaded column 1106 is connected to the cleaning scraper rod 1109, when the driving motor 1101 rotates forward or reverse, so that the cleaning brush plate 1107 moves up and down, the threaded column 1106 also drives the cleaning scraper rod 1109 to rotate together. At this time, as the cleaning brush plate 1107 rotates, it cleans up the debris accumulated on the top of the protective box 3, thereby facilitating the cleaning of the inner wall of the desulfurization tower when the desulfurization tower is in use.

[0032] See also Figure 1-Figure 5It can be seen that the outer wall of the fixed gear 1102 is provided with an auxiliary mechanism 12, and the auxiliary mechanism 12 includes a rotating rod 1201, a demister 1202, a rotating column 1203, a rotating plate 1204, an auxiliary plate 1205, a stirring column 1206, a stirring rod 1207, a fixed column 1208 and a spoiler 1209. The rotating rod 1201 is welded to the middle of the bottom end of the fixed gear 1102; the demister 1202 is sleeved in the middle of the outer wall of the rotating rod 1201, and the rotating column 1203 is docked at the bottom of the rotating rod 1201; the rotating column 1203 is sleeved in the middle of the outer wall A rotating plate 1204, and an auxiliary plate 1205 is welded to the middle of the outer wall of the rotating plate 1204; a stirring column 1206 is welded to the bottom end of the rotating column 1203, and a stirring rod 1207 is sleeved on the middle of the outer wall of the stirring column 1206; fixed columns 1208 are welded on both sides of the bottom end of the inner wall of the slurry pool 1, and a spoiler 1209 is welded to the top of the outer wall of the fixed column 1208; the rotating plates 1204 are evenly distributed on the rotating column 1203, the stirring rods 1207 are evenly distributed on the stirring column 1206, and the bottom end of the stirring column 1206 is connected to the slurry pool 1 through a bearing seat.

[0033] During the specific implementation, in the process of desulfurization of flue gas through the desulfurization tower, the electric push rod 1104 is first started to contract and drive the transmission gear 1103 to move upward until the transmission gear 1103 is disconnected from the fixed gear 1102, so that the fixed gear 1102 will not drive the transmission gear 1103 to rotate when it rotates, and then the drive motor 1101 is started to drive the fixed gear 1102 to rotate. Since the fixed gear 1102 is connected to the rotating rod 1201, the rotation of the fixed gear 1102 drives the rotating rod 1201 to rotate, and the rotation of the rotating rod 1201 drives the demister 1202 to rotate. At this time, as the demister 1202 rotates, the centrifugal force and airflow disturbance generated by its rotation can more effectively remove droplets, and when the airflow changes greatly inside the desulfurization tower body 2, the rotating demister 1202 can better adapt to and adjust its demisting effect;

[0034] Because the rotating rod 1201 is connected to the rotating column 1203, the rotating rod 1201 rotates to drive the rotating column 1203 to rotate together, and then the rotating column 1203 rotates to drive the rotating plate 1204 to rotate, and because the rotating plate 1204 is connected to the auxiliary plate 1205, the rotating plate 1204 rotates to drive the auxiliary plate 1205 to rotate together, thereby increasing the mixing area between the flue gas and the desulfurizer, promoting the chemical reaction to improve the desulfurization effect, and then improving the desulfurization efficiency of the desulfurization tower;

[0035] Because the bottom end of the rotating column 1203 is connected to the stirring column 1206, when the rotating column 1203 rotates, it also drives the stirring column 1206 to rotate together. Then the rotation of the stirring column 1206 drives the stirring rod 1207 to rotate, thereby stirring the desulfurizer inside the slurry pool 1 to prevent the desulfurizer from precipitating. Because the fixed column 1208 is welded to the spoiler 1209, the spoiler 1209 is fixed at this time. When the flowing desulfurizer passes through the spoiler 1209, the spoiler 1209 will cause the fluid to bend, tear, shear and other deformations, thereby making the desulfurizer mixed more evenly, so that when the desulfurization tower is used, it plays a role in preventing precipitation and improving the desulfurization efficiency.

[0036] See also Figure 1 , Figure 6 and Figure 7 It can be seen that a filter mechanism 13 is provided on the outer wall of the exhaust pipe 4, and the filter mechanism 13 includes a limit strip 1301, a filter box 1302 and a filter net 1303. One side of the outer wall of the exhaust pipe 4 is connected to the limit strip 1301; the limit strip 1301 is connected to the filter box 1302 through a mounting groove, and the filter net 1303 is connected inside the filter box 1302; the limit strips 1301 are distributed at equal angles on the exhaust pipe 4, and one side of the inside of the filter box 1302 is provided with a mounting groove corresponding to the limit strip 1301.

[0037] During specific implementation, during the process of desulfurization of the flue gas through the desulfurization tower, in order to prevent small particles of impurities inside the flue gas from being discharged into the air, it is necessary to filter the discharged flue gas. Since the outer wall of the exhaust pipe 4 is welded to the limiting strip 1301, the filter box 1302 is first sleeved on the outer wall of the exhaust pipe 4. At this time, the filter box 1302 and the limiting strip 1301 are snap-fitted, and then the filter box 1302 is limited to the outer wall of the exhaust pipe 4. Since the filter net 1303 is connected to the inside of the filter box 1302, when the exhaust pipe 4 discharges flue gas, the small particles of impurities in the flue gas are filtered through the filter net 1303, and then the small particles of impurities in the flue gas are prevented from being discharged into the air and affecting the environment, so that when it is used out of the tower, it is convenient to filter the flue gas.

[0038] To sum up, when the desulfurization tower with a self-cleaning structure is used, the output pump 6 is first started to guide the desulfurizer in the slurry pool 1 to the output pipe 7, and then the pressure pump 8 is started to guide the desulfurizer in the output pipe 7 to the spray pipe 9, and then the desulfurizer is sprayed out through the atomizing nozzle 10, and then the untreated flue gas is introduced into the desulfurization tower body 2 through the air inlet pipe 5. At this time, the sprayed desulfurizer contacts the flue gas, so that the sulfide in the flue gas reacts with the desulfurizer to generate compounds such as sulfate or calcium sulfate, and then the flue gas is desulfurized. Finally, the desulfurized flue gas is discharged from the desulfurization tower through the exhaust pipe 4. This is the prior art and will not be described here. In further explanation, the cleaning mechanism 11 causes the cleaning brush plate 1107 to rub against the inner wall of the desulfurization tower body 2, thereby automatically cleaning the dirt adhered to the inner wall of the desulfurization tower body 2 to prevent it from affecting the operation of the desulfurization tower; the auxiliary mechanism 12 increases the mixing area between the flue gas and the desulfurizer, thereby improving the desulfurization efficiency of the desulfurization tower; the stirring rod 1207 mixes the desulfurizer inside the slurry pool 1 to prevent the desulfurizer from precipitating; the filtering mechanism 13 filters the small particulate impurities in the flue gas, thereby preventing the small particulate impurities in the flue gas from being discharged into the air and affecting the environment. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A desulfurization tower with a self-cleaning structure, comprising a slurry pool (1), a desulfurization tower body (2) and an exhaust pipe (4), characterized in that: The top of the slurry pool (1) is connected to a desulfurization tower body (2), and a protection box (3) is welded to the top of the outer wall of the desulfurization tower body (2), and exhaust pipes (4) are connected to both sides of the top of the desulfurization tower body (2), and an air intake pipe (5) is connected to one side of the bottom of the outer wall of the desulfurization tower body (2). The bottom of the slurry pool (1) is connected to an output pump (6) through an output pipe, and the top of the output pump (6) is connected to an output pipe (7), and the top of the output pipe (7) is connected to a booster pump (8), and one side of the outer wall of the booster pump (8) is connected to a spray pipe (9), and an atomizing nozzle (10) is installed on the inner wall of the spray pipe (9). A cleaning mechanism (11) is arranged on the inner wall of the desulfurization tower body (2), and the cleaning mechanism (11) comprises a driving motor (1101), a fixed gear (1102), a transmission gear (1103), an electric push rod (1104), a lifting gear (1105), and a lifting gear (1106). A wheel (1105), a threaded column (1106), a cleaning brush plate (1107), a support frame (1108) and a cleaning scraper (1109); a driving motor (1101) is installed at the top of the inner wall of the protective box (3); and the output end of the driving motor (1101) is connected to a fixed gear (1102), and the two sides of the outer wall of the fixed gear (1102) are meshedly connected with a transmission gear (1103); an electric push rod (1104) is connected to the middle of the top of the transmission gear (1103), and the outer wall of the transmission gear (1103) is meshedly connected with a lifting gear (1105); the lifting gear (1105) is connected to the inside of the threaded column (1106), and the bottom end of the threaded column (1106) is connected to the support frame (1108) through a bearing seat; the bottom end of the cleaning scraper (1109) is connected to the threaded column (1106) away from the pressure pump (8).

2. A desulfurization tower with a self-cleaning structure according to claim 1, characterized in that: The outer wall of the support frame (1108) is welded to the inner wall of the desulfurization tower body (2), and the bottom end of the booster pump (8) is connected to the outer wall of the desulfurization tower body (2) via a support platform.

3. A desulfurization tower with a self-cleaning structure according to claim 2, characterized in that: The top end of the electric push rod (1104) is connected to the inner wall of the protection box (3) through a bearing seat, and the bottom end of the spray pipe (9) is connected to the inner wall of the desulfurization tower body (2) through a support plate.

4. A desulfurization tower with a self-cleaning structure according to claim 3, characterized in that: The outer wall of the fixed gear (1102) is provided with an auxiliary mechanism (12), and the auxiliary mechanism (12) includes a rotating rod (1201), a demister (1202), a rotating column (1203), a rotating plate (1204), an auxiliary plate (1205), a stirring column (1206), a stirring rod (1207), a fixed column (1208) and a spoiler (1209), and the rotating rod (1201) is welded to the middle part of the bottom end of the fixed gear (1102).

5. A desulfurization tower with a self-cleaning structure according to claim 4, characterized in that: A demister (1202) is sleeved on the middle part of the outer wall of the rotating rod (1201), and a rotating column (1203) is butt-jointed at the bottom end of the rotating rod (1201).

6. A desulfurization tower with a self-cleaning structure according to claim 5, characterized in that: A rotating plate (1204) is sleeved in the middle of the outer wall of the rotating column (1203), and an auxiliary plate (1205) is welded in the middle of the outer wall of the rotating plate (1204).

7. A desulfurization tower with a self-cleaning structure according to claim 6, characterized in that: A stirring column (1206) is welded to the bottom end of the rotating column (1203), and a stirring rod (1207) is sleeved on the middle part of the outer wall of the stirring column (1206).

8. The desulfurization tower with a self-cleaning structure according to claim 1, characterized in that: Fixed columns (1208) are welded on both sides of the bottom end of the inner wall of the slurry pool (1), and spoilers (1209) are welded on the top ends of the outer walls of the fixed columns (1208).

9. The desulfurization tower with a self-cleaning structure according to claim 1, characterized in that: The outer wall of the exhaust pipe (4) is provided with a filter mechanism (13), and the filter mechanism (13) comprises a limit strip (1301), a filter box (1302) and a filter net (1303), and one side of the outer wall of the exhaust pipe (4) is connected to the limit strip (1301).

10. A desulfurization tower with a self-cleaning structure according to claim 9, characterized in that: The limiting strip (1301) is connected to a filter box (1302) via a mounting groove, and a filter screen (1303) is connected inside the filter box (1302).

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