An integrated desulfurization and dust removal device for sulfur-containing flue gas

Abstract

This invention relates to an integrated desulfurization and dust removal device for sulfur-containing flue gas, belonging to the field of dust removal and desulfurization technology. Considering the issue of uneven flue gas flow as it passes through the adsorption spheres in the granular desulfurization chamber, a deflection base with a ball seat is creatively designed. An adjusting rope assembly, consisting of several ropes, is installed within the granular desulfurization chamber. The ropes' movement is adapted to the deflection base. When flue gas flow is low and the desulfurization slurry consumption on the adsorption sphere surface is low, the deflection base deflects accordingly. The downward deflection tightens the adjusting ropes, creating a flue within the adsorption sphere that guides the flue gas smoothly. As a result, the sulfur-containing flue gas passes through this flue, increasing the consumption of desulfurization slurry. Ultimately, this causes the deflection base to deflect in the opposite direction, thus actively and automatically adjusting the adsorption spheres within the granular desulfurization chamber for uniform desulfurization.

Description

Technical Field

[0001] This invention relates to the field of dust removal and desulfurization technology, and in particular to an integrated desulfurization and dust removal device for sulfur-containing flue gas. Background Technology

[0002] For the absorption of dust and SO2 in sulfur-containing flue gas, existing technologies typically employ wet and semi-dry desulfurization techniques. For example, in the industrial flue gas desulfurization and dust removal system and its process disclosed in Patent Document 1 (CN109529595B), limestone slurry is introduced into a desulfurization inclined channel, and then the flue gas is also introduced into the desulfurization inclined channel from the opposite direction. Both the flue gas and the limestone slurry need to pass through a desulfurization impeller. After reaching the desulfurization tower, the flue gas reacts with the limestone slurry leaking from the leakage ring plate, thereby achieving desulfurization. However, in the aforementioned wet desulfurization process, the contact between the flue gas and the limestone slurry is limited to the part within the desulfurization inclined channel that comes into contact with the surface of the limestone slurry. The overall desulfurization efficiency is low, and a circulating liquid pump is also required to recover the liquid. Limestone slurry makes its structure relatively complex; for example, Patent Document 2 (CN112933911B) discloses a moving bed desulfurization system and its application based on semi-dry flue gas desulfurization. This system uses granular desulfurizing agents with desulfurization slurry on their surface to adsorb SO2 in the flue gas, achieving the wet desulfurization efficiency of a clean packed tower. Simultaneously, due to the inclusion of a granular adsorbent lifting device, the dried granular desulfurizing agent can be transported to the desulfurization slurry sprayer for replenishment, and then further adsorbed for SO2 in the flue gas. While this allows for a continuous flue gas desulfurization process, the desulfurization slurry sprayer can only adsorb granular adsorbents... The desulfurizing agent is sprayed onto the surface, but the granular desulfurizing agent at the bottom cannot be fully soaked in the desulfurization slurry. This results in some granular desulfurizing agents not performing their desulfurization function during flue gas desulfurization, significantly reducing the desulfurization efficiency. Furthermore, because the granular desulfurizing agents are unevenly stacked, the flue gas passage is also uneven. This causes some granular desulfurizing agents to receive a large amount of flue gas, while others receive very little. Consequently, some granular desulfurizing agents still have excess desulfurization slurry on their surface, requiring replenishment via a lifting device. This results in some areas of the granular desulfurizing agent not receiving sufficient desulfurization slurry. Even after the desulfurization slurry on the surface of the agent has been exhausted, the flue gas desulfurization operation continues, which will reduce the overall desulfurization efficiency and effect of the flue gas. Finally, as disclosed in Patent Document 3 (CN112808055A), a combined paddle structure using a flexible rope for stirring is used. It achieves stirring by adding a flexible rope between two rotating paddles. The use of the flexible rope makes the combined paddle more effective and thorough in stirring. However, the flexible rope only plays a stirring role, and the stirring position of the flexible rope is fixed. If it is applied to the stirring of particulate matter, it can only stir in the same place and cannot adjust the stirring position according to the actual situation.

[0003] In summary, while existing technologies utilize granular desulfurizing agents with desulfurization slurry on their surfaces to absorb SO2 from sulfur-containing flue gas, they fail to consider the uneven flow of flue gas through the granular desulfurizing agents, the insufficient contact between the desulfurization slurry on the surface of the granular desulfurizing agents and the flue gas, the flue gas passage path cannot be adjusted as needed, and the replenishment of the desulfurization slurry requires lifting via a lifting device. Furthermore, the spraying of the desulfurization slurry is limited to the upper layer of granular desulfurizing agents. Therefore, this application provides an integrated desulfurization and dust removal device for sulfur-containing flue gas that can actively adjust the flue gas passage path, ensure uniform reaction of the desulfurization slurry on the surface of the granular desulfurizing agents with the flue gas, replenish the slurry without the need for a lifting device, and facilitate easy replacement of the filter screen. Summary of the Invention

[0004] To overcome the shortcomings of existing sulfur-containing flue gas desulfurization and dust removal devices, this invention provides a technical solution: an integrated desulfurization and dust removal device for sulfur-containing flue gas, comprising: a desulfurization and dust removal main body, wherein the lower end of the main body is provided with a flue gas inlet end and the upper end is provided with a flue gas outlet end; the main body includes a dust removal section and a desulfurization section from bottom to top; the dust removal section includes a filter cloth; the desulfurization section includes a granular desulfurization chamber and a spray desulfurization chamber; the spray desulfurization chamber is located above the granular desulfurization chamber; the granular desulfurization chamber is provided with a plurality of adsorption balls, the material of which is selected as alumina, magnesium oxide, or calcium oxide; the upper end of the granular desulfurization chamber is provided with an upper rope head adjustment component; the lower end is provided with a lower rope head adjustment component, a screen component, and an openable and closable support component stacked sequentially; the lower end of the openable and closable support component is provided with a deflection base; the deflection base includes a support frame one and a ball seat; the ball seat is fixedly installed in the desulfurization and dust removal main body by a support frame two; the support frame one is rotatably installed on the ball seat. This forms a ball-joint structure. An adjusting rope group is set between the upper rope head adjusting component and the lower rope head adjusting component. The adjusting rope group consists of several adjusting ropes. In the initial state, the granular desulfurization chamber is filled with adsorbent balls with desulfurization slurry on their outer surface. The lower rope head adjusting component is in a horizontal state. At this time, the adjusting ropes between the upper rope head adjusting component and the lower rope head adjusting component are in a slack state. After the sulfur-containing flue gas is filtered by the filter cloth, it enters the granular desulfurization chamber. The lower rope head adjusting component corresponding to the adsorbent ball with less flue gas sinks, and the lower rope head adjusting component corresponding to the adsorbent ball with more flue gas flips up. The sinking lower rope head adjusting component tightens the corresponding adjusting rope, and the adjusting rope is in a taut state. In this way, the taut adjusting rope can form a channel to guide the flue gas through in the adsorbent ball. This makes the flue gas pass through more in places where there is less flue gas, so that the flue gas passes through the granular desulfurization chamber evenly, and the adsorbent balls in the granular desulfurization chamber can react with the flue gas evenly.

[0005] Preferably, each adjusting rope has a spray pipe wound around its outer surface, and a plurality of spray heads are provided on the side wall of the spray pipe; or each adjusting rope is a hollow structure, and a plurality of spray heads are provided on the side wall of the adjusting rope.

[0006] Preferably, the lower rope head adjustment assembly includes an elastic support outer ring, a support rod, a rope connecting seat, and an inner connecting ring. There are several support rods, and the two ends of each support rod are fixedly connected to the inner connecting ring and the elastic support outer ring, respectively. The several support rods are evenly distributed around the inner connecting ring, and several rope connecting seats are fixedly provided on each support rod. The several rope connecting seats are connected to one end of the adjustment rope.

[0007] Preferably, the screen assembly includes a sealing ring body one, an elastic support outer ring two, and a screen. The elastic support outer ring two is disposed inside the sealing ring body one, and the screen is fixedly disposed inside the elastic support outer ring two.

[0008] Preferably, the openable and closable support assembly includes an inner connecting circular plate, an elastic support outer ring three, and several support rods two. The inner connecting circular plate and the elastic support outer ring three are fixedly connected to both ends of the several support rods two, respectively. The elastic support outer ring three includes an outer ring body two, a flexible deformable outer layer two, and a filling liquid two. The flexible deformable outer layer two is disposed on the outer side wall of the outer ring body two, and the filling liquid two is disposed inside the flexible deformable outer layer two. The support rod two is a hollow sleeve with several opening slots. A drive rod is rotatably disposed inside the support rod two. One end of the drive rod passes through the inner connecting circular plate and is fixedly connected to a drive gear at the end. A snap-fit ​​block is also connected to the drive rod. The snap-fit ​​block passes through the opening slot and is connected to a fan-shaped sealing plate. The shape of the fan-shaped sealing plate is the same as the shape of the fan-shaped notch between two adjacent support rods. A drive motor is also provided on the inner connecting circular plate. The output end of the drive motor can mesh with the drive gear to drive the drive rod to rotate. In the initial state, the fan-shaped sealing plate is in a vertical state. In the closed state, the fan-shaped sealing plate is in a horizontal state.

[0009] Preferably, the support frame one includes a plurality of support rods three and a snap-fit ​​hemispherical surface. The plurality of support rods three are evenly arranged around the snap-fit ​​hemispherical surface, and the two ends of the support rods three are respectively fixedly connected to the snap-fit ​​hemispherical surface and the lower end of the outer ring body two of the openable and closable support assembly.

[0010] Preferably, the upper rope head adjustment assembly includes a transverse fixed beam fixedly installed inside the desulfurization and dust removal body, a sliding block slidably installed on the transverse fixed beam, and a longitudinal moving beam fixedly installed at the lower end of the sliding block. The transverse fixed beam and the longitudinal moving beam are perpendicular to each other. A sliding groove is provided on the desulfurization and dust removal body for sliding at both ends of the longitudinal moving beam. A sliding groove is provided at the lower end of the longitudinal moving beam. A T-shaped block is slidably installed in the sliding groove. A rotary motor is fixedly installed at the lower end of the T-shaped block. A rotating circular block is fixedly installed on the motor output shaft of the rotary motor. Several support rods are evenly arranged around the rotating circular block. Several rope connecting seats are provided on each support rod. The rope connecting seats are fixedly connected to the other end of the adjustment rope.

[0011] Preferably, the transverse fixed beam is slidably mounted on the sliding block via a through groove. A drive wheel is also provided on the sliding block at a position within the through groove. The drive wheel can drive the sliding block to slide relative to the transverse fixed beam. A drive wheel is provided on the longitudinal moving beam. The drive wheel can drive the T-block to slide relative to the longitudinal moving beam.

[0012] Preferably, the support rod five is a telescopic rod, including an outer sleeve rod, an inner sleeve rod, and several intermediate sleeve rods that are nested together. The outer sleeve rod is inserted into the intermediate sleeve rod, and the intermediate sleeve rod is inserted into the inner sleeve rod. A rope connecting seat two is fixedly provided on the outer sleeve rod, a rope connecting seat two is fixedly provided on each of the intermediate sleeve rods, and a rope connecting seat two is fixedly provided on the inner sleeve rod. The two ends of each rope connecting seat two are connected by a fork-reducing linkage assembly.

[0013] Preferably, a filter replacement device is also provided on one side of the desulfurization and dust removal main body. The filter replacement device includes a guide rod, a lifting sleeve vertically slidably disposed on the guide rod, a rotating sleeve capable of rotating around the lifting sleeve, and a plurality of replacement sleeve connecting rods fixedly disposed on the outside of the rotating sleeve. The end of the replacement sleeve connecting rod is detachably connected to the sleeve to be replaced.

[0014] The beneficial effects of this invention are as follows:

[0015] 1) The integrated desulfurization and dust removal device for sulfur-containing flue gas of the present invention takes into account the problem that some areas of flue gas have more flue gas and some areas have less flue gas when the flue gas passes through the adsorption balls in the granular desulfurization chamber. It creatively sets up a deflection base with a ball seat and sets up an adjustment rope group in the granular desulfurization chamber. The adjustment rope group consists of several adjustment ropes. The movement of the adjustment ropes is adapted to the deflection base. When the flue gas is less and the desulfurization slurry on the surface of the adsorption ball is consumed less, the weight at that point is heavier, causing the deflection base to deflect accordingly. The downward deflection of the deflection base tightens the adjustment ropes, thereby forming a flue in the adsorption ball that can guide the flue gas to pass smoothly. As a result, the sulfur-containing flue gas passes through this flue, which increases the consumption of desulfurization slurry at this point. Finally, the deflection base deflects in the opposite direction, thereby actively and automatically adjusting the adsorption balls in the granular desulfurization chamber to perform flue gas desulfurization operation, so that the desulfurization is uniform.

[0016] 2) The spray desulfurization chamber of the present invention is located at the upper end of the granular desulfurization chamber. After the flue gas discharged from the granular desulfurization chamber enters the spray desulfurization chamber, it can be further desulfurized by the desulfurization slurry sprayed from the upper and side nozzles of the spray desulfurization chamber. During the secondary desulfurization operation, the excess desulfurization slurry can be immersed into the surface of the adsorption balls in the granular desulfurization chamber, so that the desulfurization slurry on the surface of the adsorption balls can be replenished during the secondary desulfurization. At the same time, several spray heads that can spray desulfurization slurry are set on each adjusting rope, and the spraying operation of the spray head can be adapted to the movement of the deflection base. It can make the spray head at the adjusting rope corresponding to the upward deflection base spray liquid, so as to replenish the adsorption balls in the faster consumption position. After the deflection base is in a horizontal state, the spray head at all adjusting ropes can spray liquid.

[0017] 3) Furthermore, in order to achieve sufficient mixing, the two ends of the adjusting rope are respectively an upper rope head adjusting component and a lower rope head adjusting component. The upper rope head adjusting component includes a rotating block operated by a rotary motor, and several support rods five are evenly arranged on the outer periphery of the rotating block. Several rope connecting seats two are provided on the support rods five. The rotary motor is slidably mounted on the transverse fixed beam by the sliding block, and the rotary motor is slidably mounted on the longitudinal moving beam fixed inside the sliding block. The longitudinal moving beam and the transverse fixed beam are perpendicular to each other. In this way, the rotary motor can freely rotate in any space within the desulfurization and dust removal body. This can change the rotation center of the adjusting rope. Compared with the mixing method with a fixed rotation center, the mixing can be more uniform and thorough.

[0018] 4) Furthermore, to facilitate the replacement of screen components and filter cloths, a filter replacement device is installed on the side of the desulfurization and dust removal main body. The filter replacement device can be raised and lowered according to the position of the parts to be replaced. At the same time, three working stations are set up: one station for unloading old parts, one station for connecting new screen components, and one station for connecting new filter cloths. Thus, the replacement of filter screens and filter cloths can be completed through rotation and raising and lowering. In addition, to ensure that the adsorption balls do not fall into the dust removal section during screen replacement, an openable and closable support component is also included. The openable and closable support component is equipped with several fan-shaped sealing plates that can be repositioned. By adjusting the rotation angle of the fan-shaped sealing plates, the openable and closable support component can be in an open or closed state. Furthermore, by changing the rotation angle of the fan-shaped sealing plates, the flue gas entering the granular desulfurization chamber can also be guided. For example, the flue gas guiding angle of the fan-shaped sealing plates can be adjusted in conjunction with the deflection angle of the deflection base. It can also work with the action of the adjusting rope to make the flue gas more evenly distributed in the granular desulfurization chamber.

[0019] 5) Furthermore, in order to adapt to changes in the position of the rotary motor, the support rod five is designed as a telescopic rod structure, and a rope connecting seat two is provided on each telescopic rod. The rope connecting seats two are connected by a scissor linkage assembly. This design allows the telescopic rod to be displaced due to the side wall compression inside the desulfurization and dust removal body caused by the lateral movement of the rotary motor. The scissor linkage assembly can then convert this displacement into the lateral movement of each rope connecting seat two, making the stirring of the rotary motor more stable and also preventing the distance between the rope connecting seats two from being too close or too far. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the integrated desulfurization and dust removal device for sulfur-containing flue gas according to the present invention.

[0021] Figure 2 Top view of the lower rope head adjustment assembly;

[0022] Figure 3 for Figure 2 AA section view;

[0023] Figure 4 Top view of the screen assembly;

[0024] Figure 5 This is a top view of the openable / closable support component;

[0025] Figure 6 for Figure 5 BB cross-sectional view;

[0026] Figure 7 for Figure 6 CC section view;

[0027] Figure 8 A top view of the support frame;

[0028] Figure 9 Top view of the upper rope head adjustment assembly;

[0029] Figure 10 Top view of the upper rope head adjustment assembly;

[0030] Figure 11 This is a cross-sectional view of the upper rope head adjustment assembly;

[0031] Figure 12 Top view of the filter replacement device;

[0032] Figure 13 This is the second embodiment of support rod five;

[0033] Figure 14 Top view of the blocking ring located on the outside of the screen assembly;

[0034] Figure 15 for Figure 14 DD sectional view.

[0035] Label Explanation

[0036] 1. Desulfurization and dust removal main body; 2. Flue gas inlet end; 3. Flue gas outlet end; 4. Filter screen replacement device; 5. Dust removal section; 6. Desulfurization section; 7. Filter cloth; 8. Granular desulfurization chamber; 9. Spray desulfurization chamber; 10. Deflection base; 11. Adjustable rope assembly; 12. Upper rope head adjustment component; 13. Lower rope head adjustment component; 14. Screen assembly; 15. Openable and closable support assembly; 16. Support frame one; 17. Ball seat; 18. Support frame two; 19. Elastic support outer ring one 20. Support rod one; 21. Rope connector one; 22. Inner connecting ring; 23. Outer ring body one; 24. Flexible deformable outer layer one; 25. Filling fluid one; 26. Elastic support outer ring two; 27. Screen; 28. Sealing ring body one; 29. ​​Support rod two; 30. Inner connecting circular plate; 31. Elastic support outer ring three; 32. Outer ring body two; 33. Flexible deformable outer layer two; 34. Filling fluid two; 35. Drive rotating rod; 36. Drive gear; 37. Clamping 38. Block; 39. Fan-shaped sealing plate; 40. Opening slot; 41. Support rod three; 42. Snap-fit ​​hemispherical surface; 43. Support rod four; 44. Longitudinal moving crossbeam; 45. Sliding block; 46. Rotary motor; 47. Rotating circular block; 48. Support rod five; 49. Rope connecting seat two; 50. Sliding groove; 51. T-block; 52. Motor output shaft; 53. Through groove; 54. Drive wheel one; 55. Drive wheel two; 56. Lifting sleeve; 57. Rotating sleeve; 58. More 58. Replacement connecting rod; 59. Replacement sleeve; 60. Outer sleeve rod; 61. Inner sleeve rod; 62. Scissor linkage assembly; 63. Telescopic drive cylinder; 64. Upper nozzle; 65. Side nozzle; 66. Liquid storage chamber; 67. Horizontal fixed beam; 68. Guide rod; 69. Sealing ring body two; 70. Waste outlet; 71. External drive motor; 72. Internal drive motor; 73. External sealing ring; 74. Internal sealing ring; 75. Upper guide rail; 76. Lower guide rail. Detailed Implementation

[0037] The present invention will be further described below with reference to embodiments, but this is not intended to limit the present invention in any way. Any modifications or substitutions made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0038] An integrated desulfurization and dust removal device for sulfur-containing flue gas, such as Figure 1-15As shown, it includes: a desulfurization and dust removal main body 1, with a flue gas inlet end 2 at the lower end and a flue gas outlet end 3 at the upper end. The desulfurization and dust removal main body 1 includes a dust removal section 5 and a desulfurization section 6 from bottom to top. The dust removal section 5 includes a filter cloth 7. The desulfurization section 6 includes a granular desulfurization chamber 8 and a spray desulfurization chamber 9. The spray desulfurization chamber 9 is located above the granular desulfurization chamber 8. The granular desulfurization chamber 8 contains adsorption balls (not shown), made of alumina, magnesium oxide, or calcium oxide. The upper end of the granular desulfurization chamber 8 is equipped with an upper rope head adjustment component 12, and the lower end is equipped with a lower rope head adjustment component 13, a screen component 14, and an openable / closable support component 15 stacked sequentially. The lower end of the openable and closable support assembly 15 is provided with a deflection base 10. The deflection base 10 includes a support frame 16 and a ball seat 17. The ball seat 17 is fixedly installed in the desulfurization and dust removal body 1 by a support frame 18. The support frame 16 is rotatably installed on the ball seat 17, thereby forming a ball hinge structure. An adjusting rope group 11 is provided between the upper rope head adjusting assembly 12 and the lower rope head adjusting assembly 13. The adjusting rope group 11 is composed of several adjusting ropes. In the initial state, the granular desulfurization chamber 8 is filled with adsorption spheres with desulfurization slurry on their outer surface. The lower rope head adjusting assembly 13 is in a horizontal state. At this time, the adjusting ropes located between the upper rope head adjusting assembly 12 and the lower rope head adjusting assembly 13 are all in a slack state. After being filtered through the filter cloth 7, the sulfur-containing flue gas enters the granular desulfurization chamber 8. Due to the varying gaps between the adsorption balls in the granular desulfurization chamber 8, some areas of the flue gas pass through more sulfur-containing gas than others. The desulfurization slurry on the surface of the adsorption balls in areas with more sulfur-containing gas comes into contact with and dries the flue gas, resulting in weight differences within the granular desulfurization chamber 8. The adsorption balls in areas with more flue gas pass through become lighter, while those in areas with less flue gas pass through become heavier. This causes the stacked lower rope adjustment assembly 13, screen assembly 14, and openable / closable support assembly 15 to rotate around the ball seat 17, ultimately reducing the weight of the adsorption balls in areas with less flue gas passing through. As the lower rope adjustment component 13 corresponding to the adsorption ball sinks, the lower rope adjustment component 13 corresponding to the adsorption ball with more flue gas flips up. The sinking lower rope adjustment component 13 tightens the corresponding adjustment rope, putting the adjustment rope in a taut state. In this way, the taut adjustment rope can form a channel to guide the flue gas through the adsorption ball. This allows more flue gas to pass through areas with less flue gas, resulting in uniform flue gas flow throughout the granular desulfurization chamber 8. This ensures that the adsorption balls in the granular desulfurization chamber 8 can react evenly with the flue gas, preventing some adsorption balls from contacting too much flue gas while others have too little contact, thus improving the desulfurization efficiency of sulfur-containing flue gas.

[0039] Preferably, in order to ensure the efficiency of forming a channel to guide the flue gas when the adjusting rope is taut, the diameter of the adjusting rope is larger than the diameter of the adsorption ball.

[0040] Furthermore, in order to enable the adsorption spheres to continuously desulfurize the flue gas, the outer surface of each regulating rope is wrapped with a spray pipe, and several spray heads are provided on the side wall of the spray pipe; or each regulating rope is a hollow structure, and several spray heads are provided on the side wall of the regulating rope, so as to replenish the slurry.

[0041] Furthermore, such as Figure 2-3 As shown, the lower rope head adjustment assembly 13 includes an elastic support outer ring 19, a support rod 20, a rope connecting seat 21, and an inner connecting ring 22. There are several support rods 20, and the two ends of each support rod 20 are fixedly connected to the inner connecting ring 22 and the elastic support outer ring 19, respectively. The several support rods 20 are evenly distributed around the inner connecting ring 22, and several rope connecting seats 21 are fixedly provided on each support rod 20. The several rope connecting seats 21 are connected to one end of the adjustment rope.

[0042] Furthermore, the elastic support outer ring 19 includes an outer ring body 23, a flexible deformable outer layer 24, and a filling liquid 25. The flexible deformable outer layer 24 is disposed on the outer side wall of the outer ring body 23, and the filling liquid 25 is disposed inside the flexible deformable outer layer 24. The elastic support outer ring 19 can adaptively fit into the interior of the desulfurization and dust removal body 1 when the lower rope head adjustment assembly 13 rotates around the ball seat 17.

[0043] Furthermore, such as Figure 4 As shown, the screen assembly 14 includes a sealing ring 28, an elastic support outer ring 26, and a screen 27. The elastic support outer ring 26 is disposed inside the sealing ring 28, and the screen 27 is fixedly disposed inside the elastic support outer ring 26. The structure of the elastic support outer ring 26 is the same as that of the elastic support outer ring 19. The screen 27 enables the adsorption spheres to be retained in the granular desulfurization chamber 8, while the flue gas can pass through the screen 27 and enter the granular desulfurization chamber 8.

[0044] Furthermore, such as Figure 5-7As shown, the openable and closable support assembly 15 includes an inner connecting circular plate 30, an elastic support outer ring 31, and several support rods 29. The two ends of the several support rods 29 are respectively fixedly connected to the inner connecting circular plate 30 and the elastic support outer ring 31. The elastic support outer ring 31 includes an outer ring body 32, a flexible deformable outer layer 33, and a filling liquid 34. The flexible deformable outer layer 33 is disposed on the outer side wall of the outer ring body 32, and the filling liquid 34 is disposed within the flexible deformable outer layer 33. The support rods 29 are hollow sleeves with several openings 39. A drive rod 35 is rotatably disposed within the support rod 29. One end passes through the inner connecting circular plate 30 and is fixedly connected to a drive gear 36 at the end. A locking block 37 is also connected to the drive rotating rod 35. The locking block 37 passes through the opening slot 39 and is connected to a fan-shaped sealing plate 38. The shape of the fan-shaped sealing plate 38 is the same as the shape of the fan-shaped notch between two adjacent support rods 29. A drive motor is also provided on the inner connecting circular plate 30. The output end of the drive motor can mesh with the drive gear 36 to drive the drive rotating rod 35 to rotate. In the initial state, the fan-shaped sealing plate 38 is in a vertical state. In the closed state, the fan-shaped sealing plate 38 is in a horizontal state. Thus, the openable and closable support assembly 15 is a closed circular plate.

[0045] Furthermore, such as Figure 8 As shown, the support frame 16 includes a plurality of support rods 40 and a snap-fit ​​hemispherical surface 41. The plurality of support rods 40 are evenly arranged around the snap-fit ​​hemispherical surface 41, and the two ends of the support rods 40 are respectively fixedly connected to the snap-fit ​​plate spherical surface 41 and the lower end of the outer ring body 32 of the openable and closable support assembly 15.

[0046] Furthermore, the support frame 2 18 includes a plurality of support rods 42, which are evenly arranged around the ball seat 17, and the two ends of the support rods 42 are respectively fixedly connected to the ball seat 17 and the desulfurization and dust removal body 1.

[0047] Furthermore, a sealing ring 69 is provided on the outer side of the filter cloth 7.

[0048] Furthermore, such as Figure 9-11As shown, the upper rope head adjustment assembly 12 includes a transverse fixed beam 67 fixedly installed inside the desulfurization and dust removal body 1, a sliding block 44 slidably installed on the transverse fixed beam 67, and a longitudinal moving beam 43 fixedly installed at the lower end of the sliding direction 44. The transverse fixed beam 67 and the longitudinal moving beam 43 are perpendicular to each other. A sliding groove (not shown in the figure) is provided on the desulfurization and dust removal body 1 for sliding at both ends of the longitudinal moving beam 43. A sliding groove 49 is provided at the lower end of the longitudinal moving beam 43. A T-shaped block 50 is slidably installed in the sliding groove 49. A rotary motor 45 is fixedly installed at the lower end of the T-shaped block 50. A rotating circular block 46 is fixedly installed on the motor output shaft 51 of the rotary motor 45. Several support rods 47 are evenly arranged around the rotating circular block 46. Several rope connecting seats 48 are provided on each support rod 47. The rope connecting seats 48 are fixedly connected to the other end of the adjustment rope.

[0049] Furthermore, the number of the five support rods 47 is the same as the number of the first support rods 20, and the number of the first rope connectors 21 is the same as the number of the second rope connectors 48.

[0050] Furthermore, the transverse fixed beam 67 is slidably mounted on the sliding block 44 via the through groove 52. A drive wheel 53 is also provided on the sliding block 44 and located within the through groove 52. The drive wheel 53 can drive the sliding block 44 to slide relative to the transverse fixed beam 67. A drive wheel 54 is provided on the longitudinal moving beam 43. The drive wheel 54 can drive the T-shaped block 50 to slide relative to the longitudinal moving beam 43. Preferably, both the drive wheel 53 and the drive wheel 54 are driven by an electric motor or an electric motor.

[0051] Furthermore, such as Figure 13 As shown, the support rod 57 is a telescopic rod, including an outer sleeve rod 59, an inner sleeve rod 61, and several intermediate sleeve rods 60 that are nested together. The outer sleeve rod 59 is inserted into the intermediate sleeve rods 60, and the intermediate sleeves 60 are inserted into the inner sleeve rods 61. A rope connecting seat 2 48 is fixedly installed on the outer sleeve rod 59, a rope connecting seat 2 48 is fixedly installed on each of the intermediate sleeve rods 60, and a rope connecting seat 2 48 is fixedly installed on the inner sleeve rod 61. The two ends of each rope connecting seat 2 48 are connected by a scissor lift linkage assembly 62. This arrangement allows each connecting seat 2 48 to retract synchronously when the outer sleeve rod 59 retracts. Preferably, a telescopic drive cylinder 63 is provided between the scissor lift linkage assemblies 62. The action of the telescopic drive cylinder 63 can drive the scissor lift linkage assemblies 62 to perform telescopic movements.

[0052] Furthermore, such as Figure 1 , 12As shown, a filter replacement device 4 is also provided on one side of the desulfurization and dust removal main body 1. The filter replacement device 4 includes a guide rod 68, a lifting sleeve 55 vertically slidably disposed on the guide rod 68, a rotating sleeve 56 capable of rotating around the lifting sleeve 55, and a plurality of replacement sleeve connecting rods 57 fixedly disposed on the outside of the rotating sleeve 56. The end of the replacement sleeve connecting rod 57 is detachably connected to the sleeve to be replaced 58.

[0053] Furthermore, the lifting sleeve 55 achieves lifting and lowering on the guide rod 68 through a gear and rack structure or a cable pulley structure. The specific lifting structure will not be described in detail here. A rotary drive motor is provided on the lifting sleeve 55, and a rack structure is provided on the inner side of the rotating sleeve 56. The rotating sleeve 56 rotates relative to the lifting sleeve 55 by the rotary drive motor meshing with the rack structure. The replacement sleeve connecting rod 57 and the sleeve to be replaced 58 are detachably connected by means of pins, screws, bolts, etc. The specific detachable connection method is common knowledge in the art and is not the focus here, so it will not be described in detail.

[0054] Furthermore, such as Figure 1 As shown, an upper nozzle 64 is provided at the top of the spray desulfurization chamber 9, and a side nozzle 65 is provided on the side wall of the spray desulfurization chamber 9. A liquid storage chamber 66 is provided above the spray desulfurization chamber 9. The liquid storage chamber 66 stores desulfurization slurry for absorbing SO2 in flue gas. The liquid storage chamber 66 is connected to both the upper nozzle 64 and the side nozzle 65.

[0055] Furthermore, the rope connector 21 is equipped with a drive pump that can drive several spray heads corresponding to each adjusting rope to spray liquid, and the drive pump is connected to the liquid storage chamber 66, so that the desulfurization slurry in the liquid storage chamber 66 can flow into the rope connector 21.

[0056] Furthermore, there are 8 support rods 20 and 47, 3 rope connectors 21 on each support rod 20, and 3 rope connectors 48 on each support rod 47. The specific number of support rods 20 and 47 can be selected according to the actual situation, such as 12 or 16. The specific number of rope connectors 1 and 2 can also be selected according to actual needs, such as 4 or 5.

[0057] Furthermore, there are three replacement sleeve connecting rods 57. One end of the replacement sleeve connecting rod 57 is not connected to the replacement sleeve 58, one end of the replacement sleeve connecting rod 57 is connected to the new filter cloth 7, and the last end of the replacement sleeve connecting rod 57 is connected to the new screen assembly 14. With this configuration, when replacing the filter cloth and / or screen assembly, the filter cloth and / or screen assembly to be replaced can be pulled out first through the replacement sleeve connecting rod 57 that is not connected to the replacement sleeve 58, and then the new filter cloth and / or screen assembly can be inserted into the desulfurization and dust removal body 1.

[0058] Furthermore, in order to facilitate the cleaning of the broken adsorption spheres, i.e. the impurities on the surface of the adsorption spheres, a waste outlet 70 is provided at the lower end of the desulfurization and dust removal body 1. The waste outlet 70 is provided at the lower end of the desulfurization and dust removal body 1 in an openable and closable manner.

[0059] Furthermore, the desulfurization slurry can be a calcium carbonate or sodium carbonate solution.

[0060] Furthermore, the desulfurization and dust removal main body 1 is divided into upper and lower sections by the screen assembly 14. The upper section of the desulfurization and dust removal main body 1 can be fixedly supported by an additional external support frame, while the lower section is directly fixed to the base or the ground. The external support frame will not interfere with the operation of the filter replacement device 4.

[0061] Furthermore, the lower section is divided into a top section and a bottom section by the filter cloth 7. The top section is also fixed by an external support frame, and the bottom section is directly fixed to the base or the ground. The location where the filter cloth 7 is installed in the lower section can also allow the opening groove of the desulfurization and dust removal body 1 to be half-opened. The filter cloth 7 can be disassembled and installed by entering or leaving the opening groove of the entire desulfurization and dust removal body 1.

[0062] Furthermore, an opening is provided at the lower end of the inner connecting circular plate 30 for the drive gear 36 to be exposed, and the drive motor drives the drive gear 36 to rotate through the opening.

[0063] Furthermore, a balancing cylinder is provided between the first support frame 16 and the second support frame 18, and the horizontality of the lower rope head adjusting component 13 is actively adjusted by driving the extension and retraction of the balancing cylinder.

[0064] Furthermore, an angle sensor is provided on the support frame 16, the openable / closable support assembly 15, or the lower rope head adjustment assembly 13. The angle sensor can measure the deflection angle of the support frame 16, the openable / closable support assembly 15, or the lower rope head adjustment assembly 13, and control the opening or closing of a plurality of spray heads located on the adjustment rope by measuring the deflection angle.

[0065] Furthermore, in order to enable real-time adjustment of the rope length, a motor-driven drum structure is rotatably installed inside the rope connector 48. The upper end of the adjusting rope is wound around the drum, and the length of the adjusting rope is adjusted by rotating the drum driven by the motor.

[0066] Furthermore, to ensure that the adsorption balls do not leak out when the screen assembly 14 is replaced, an upper guide rail 75 is provided on the bottom outer periphery of the upper section of the desulfurization and dust removal body 1, and a lower guide rail 76 is provided on the top outer periphery of the lower section of the desulfurization and dust removal body 1. An outer closed ring 73 is engaged at the outer ends of the upper guide rail 75 and the lower guide rail 76, and an inner closed ring 74 is engaged at the inner ends of the upper guide rail 75 and the lower guide rail 76. An external drive motor 71 is provided on the desulfurization and dust removal body 1 to drive the outer closed ring 73 to slide, and an internal drive motor 72 is provided on the desulfurization and dust removal body 1 to drive the inner closed ring 74 to slide. The lengths of the outer closed ring 73 and the inner closed ring 74 are both greater than the semicircle of the desulfurization and dust removal body 1. The internal drive motor 72 and the external drive motor 71 are arranged vertically, and there are two such motors on the desulfurization and dust removal body 1. The line connecting the two locations passes through the center of the desulfurization and dust removal body 1.

[0067] Furthermore, the cross-sections of the upper and lower guide rails are both dovetail-shaped, and the inner closed ring 74 and the outer closed ring 73 are respectively secured on both sides of the dovetail.

[0068] To enable those skilled in the art to understand this application in detail, the working process of the integrated desulfurization and dust removal device for sulfur-containing flue gas of this application is described as follows: Sulfur-containing flue gas is introduced from the flue gas inlet 2, and after being filtered by the filter cloth 7, the dust removal step is completed; then the flue gas continues to enter the granular desulfurization chamber 8, where the desulfurization slurry on the surface of the adsorption spheres in the granular desulfurization chamber 8 performs desulfurization on the flue gas. The desulfurization slurry dries due to contact with the high-temperature flue gas, thus becoming lighter in weight. The gaps formed by the accumulated adsorption spheres throughout the granular desulfurization chamber 8 are different, therefore, the flue gas forms several... As the flue gas passes through the channel, the desulfurization slurry is consumed more quickly in areas with higher flue gas concentration, resulting in a lighter weight. This causes the lower rope head adjusting component 13 to deflect around the ball seat 17. The lower rope head adjusting component 13 deflects downwards in areas with higher weight and upwards in areas with lower weight. Ultimately, the adjusting rope in the heavier area is taut, thus clearing a passage for flue gas. This increases the amount of flue gas passing through this area, which in turn reduces the weight in the heavier area, causing the lower rope head adjusting component 13 to return to a horizontal state. This achieves the desired effect for the entire granular material. The adsorption spheres in desulfurization chamber 8 can uniformly adsorb SO2 in the flue gas. After passing through the granular desulfurization chamber 8, the flue gas continues to move upward into the spray desulfurization chamber 9. The upper nozzle 64 and side nozzle 65 in the spray desulfurization chamber 9 spray out desulfurization slurry, further desulfurizing the flue gas. Simultaneously, the desulfurization slurry sprayed from the spray desulfurization chamber 9 flows downward and soaks into the surface of the adsorption spheres in the granular desulfurization chamber 8, replenishing the adsorption spheres while further desulfurizing the flue gas. The flue gas, after further desulfurization in the spray desulfurization chamber 9, is discharged from the flue gas outlet 3, completing the process. The desulfurization and dust removal operation of sulfur-containing flue gas: When the flue gas enters the granular desulfurization chamber 8, several spray heads set at each adjusting rope are driven by the drive pump in the rope connecting seat 21 to spray liquid, thereby achieving the effect of replenishing liquid. Specifically, the drive pump at the adjusting rope of the lighter lower rope head adjusting component 13, which deflects upward, is activated to spray slurry, so that the adsorbent balls that are consumed quickly can be replenished in time. Furthermore, when the lower rope head adjusting component 13 is in a horizontal state, the drive pumps in all rope connecting seats 21 can be activated together to replenish the adsorbent balls in the granular desulfurization chamber 8 at the same time.Further, when the filter cloth or screen assembly 14 needs to be replaced, the lifting sleeve 55 of the filter replacement device 4 is raised or lowered to align the height of the replacement sleeve 58 with the filter cloth or screen assembly. Then, the replacement sleeve connecting rod 57, which is not connected to the replacement sleeve 58, is connected to the old filter cloth or screen assembly. Then, the rotating sleeve 56 is driven to rotate to pull out the old filter cloth or screen assembly 14. At the same time, the rotation continues to align the replacement sleeve 58, which is equipped with the new filter cloth or screen assembly, with the desulfurization and dust removal main body 1, thus completing the replacement of the filter cloth or screen assembly. Before replacing the screen assembly 14, the openable and closable support assembly 15 is kept in a closed state, specifically by making the drive gear 36... The fan-shaped sealing plate 38 is rotated to change from a vertical to a horizontal state, thereby closing the openable support assembly 15 and preventing the adsorbed balls from flowing out of the granular desulfurization chamber 18 when replacing the screen assembly 14. During screen assembly replacement, the inner drive motor 72 and the outer drive motor 71 work together to gradually open the inner and outer sealing rings. The opened ends of the inner and outer sealing rings contact the edge of the pulled-out screen assembly, ensuring that the adsorbed balls inside do not flow out when the old screen assembly is removed. Then, when a new screen assembly needs to be replaced, the inner drive motor 72 and the outer drive motor 71 work together to close the inner and outer sealing rings. The outer closed ring gradually opens, and the open ends of the inner and outer closed rings contact the edge of the inserted screen assembly, thus ensuring that the adsorption balls do not flow out during insertion. Only the adsorption balls in the front part of the sealing ring body flow out. At this time, a ball recovery device can be set up to recover these adsorption balls for reuse. When it is necessary to clean the dust or impurities on the surface of the adsorption balls or clean the damaged adsorption balls, the flue gas is stopped, and the filter cloth 7 is pulled out. The drive wheel 1 53 and drive wheel 2 54 are activated, thereby driving the rotary motor 45 to stop at any point in the granular desulfurization chamber 8, and then driving the rotation through continuous forward and reverse cycles. The motor 45 rotates continuously, causing the adjusting rope group 11 to continuously change the stirring center. Compared with a stirring mechanism that cannot change the stirring center, this makes the stirring more uniform. At the same time, the support rod 47 is pressed against the desulfurization and dust removal body 1 due to the change in position, and then automatically retracts. The retracted support rod 47 drives the corresponding rope connecting seat 48 to slide through the scissor linkage component 62, so that the rope is more concentrated at the center of rotation, and the stirring is more thorough. After stirring, the dust or residual particles fall into the waste outlet 70 after passing through the screen 27. After cleaning, the filter cloth 7 can be installed to carry out the flue gas desulfurization and dust removal operation.Furthermore, to ensure that the desulfurization slurry can be evenly sprayed onto the surface of the adsorption spheres by adjusting the spray nozzles on the rope, after the slurry is sprayed, the drive wheels 1 (53) and 2 (54) can be driven to move, thereby allowing the rotary motor 45 to stop at any point in the granular desulfurization chamber 8. Then, by continuously driving the rotary motor 45 in both forward and reverse cycles, the stirring center of the adjusting rope assembly 11 is constantly changed. Compared to a stirring mechanism that cannot change the stirring center, this results in more uniform stirring. All of the above stirring actions can be performed by keeping the balance cylinder between the support frame 1 (16) and the support frame 2 (18) stationary, maintaining the lower rope head adjusting assembly 13 in a horizontal state. This ensures more stable stirring.

[0069] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A device for desulfurization and dust removal of sulfur-containing flue gas, comprising: A desulfurization and dust removal main body (1) is provided with a flue gas inlet end (2) at the lower end and a flue gas outlet end (3) at the upper end. The desulfurization and dust removal main body (1) includes a dust removal section (5) and a desulfurization section (6) from bottom to top. The dust removal section (5) includes a filter cloth (7). The desulfurization section (6) includes a granular desulfurization chamber (8) and a spray desulfurization chamber (9). The spray desulfurization chamber (9) is located at the upper end of the granular desulfurization chamber (8). The granular desulfurization chamber (8) is provided with a number of adsorption balls. The adsorption balls are made of alumina and magnesium oxide. Or calcium oxide, the upper end of the granular desulfurization chamber (8) is provided with an upper rope head adjustment assembly (12), and the lower end is provided with a lower rope head adjustment assembly (13), a screen assembly (14) and an openable and closable support assembly (15) stacked in sequence. The lower end of the openable and closable support assembly (15) is provided with a deflection base (10). The deflection base (10) includes a support frame one (16) and a ball seat (17). The ball seat (17) is fixedly installed in the desulfurization and dust removal body (1) through a support frame two (18). The support frame one (16) is rotatably installed on the ball seat (17). This forms a ball-joint structure. An adjusting rope group (11) is provided between the upper rope head adjusting component (12) and the lower rope head adjusting component (13). The adjusting rope group (11) consists of several adjusting ropes. In the initial state, the granular desulfurization chamber (8) is filled with adsorbent spheres with desulfurization slurry on their outer surface. The lower rope head adjusting component (13) is in a horizontal state. At this time, the adjusting ropes between the upper rope head adjusting component (12) and the lower rope head adjusting component (13) are all in a slack state. The sulfur-containing flue gas enters the granular desulfurization chamber (8) after being filtered by the filter cloth (7). The flue gas is then drawn through the adsorbent with less flue gas. The lower rope head adjustment component (13) corresponding to the small ball sinks down, and the lower rope head adjustment component (13) corresponding to the adsorption ball with more flue gas flips up. The sinking lower rope head adjustment component (13) tightens the adjustment rope corresponding to this place, and the adjustment rope is in a taut state. In this way, the taut adjustment rope can form a channel to guide the flue gas through in the adsorption ball. In this way, the area with less flue gas passes through becomes a place with more flue gas passing through, so that the flue gas passes through all places in the granular desulfurization chamber (8) evenly, and the adsorption ball in the granular desulfurization chamber (8) can react with the flue gas evenly. Each adjusting rope has a spray pipe wound around its outer surface, and several spray heads are provided on the side wall of the spray pipe; or each adjusting rope can be a hollow structure, with several spray heads provided on the side wall of the adjusting rope; the diameter of the adjusting rope is larger than the diameter of the adsorption ball.

2. The device for desulfurization and dust removal of flue gas containing sulfur according to claim 1, characterized in that: The lower rope head adjustment assembly (13) includes an elastic support outer ring (19), a support rod (20), a rope connecting seat (21), and an inner connecting ring (22). There are several support rods (20). The two ends of the support rods (20) are fixedly connected to the inner connecting ring (22) and the elastic support outer ring (19), respectively. The several support rods (20) are evenly distributed around the inner connecting ring (22), and several rope connecting seats (21) are fixedly provided on each support rod (20). The several rope connecting seats (21) are connected to one end of the adjustment rope.

3. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 1, characterized in that: The screen assembly (14) includes a sealing ring (28), an elastic support outer ring (26), and a screen (27). The elastic support outer ring (26) is disposed inside the sealing ring (28), and the screen (27) is fixedly disposed inside the elastic support outer ring (26).

4. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 1, characterized in that: The openable and closable support assembly (15) includes an inner connecting circular plate (30), an elastic support outer ring three (31), and several support rods two (29). The two ends of the several support rods two (29) are respectively fixedly connected to the inner connecting circular plate (30) and the elastic support outer ring three (31). The elastic support outer ring three (31) includes an outer ring body two (32), a flexible deformable outer layer two (33), and a filling liquid two (34). The flexible deformable outer layer two (33) is disposed on the outer side wall of the outer ring body two (32), and the filling liquid two (34) is disposed inside the flexible deformable outer layer two (33). The support rods two (29) are hollow sleeves with several opening slots (39) on them. A drive is rotatably disposed inside the support rods two (29). A rotating rod (35) is provided. One end of the driving rotating rod passes through the inner connecting circular plate (30) and is fixedly connected to a driving gear (36) at the end. A snap-fit ​​block (37) is also connected to the driving rotating rod (35). The snap-fit ​​block (37) passes through the opening slot (39) and is connected to a fan-shaped sealing plate (38). The shape of the fan-shaped sealing plate (38) is the same as the shape of the fan-shaped notch between two adjacent support rods (29). A driving motor is also provided on the inner connecting circular plate (30). The output end of the driving motor can mesh with the driving gear (36) to drive the driving rotating rod (35) to rotate. In the initial state, the fan-shaped sealing plate (38) is in a vertical state. In the closed state, the fan-shaped sealing plate (38) is in a horizontal state.

5. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 1, characterized in that: The support frame one (16) includes several support rods three (40) and a snap-fit ​​hemispherical surface (41). The several support rods three (40) are evenly arranged around the snap-fit ​​hemispherical surface (41), and the two ends of the support rods three (40) are respectively fixedly connected to the snap-fit ​​hemispherical surface (41) and the lower end of the outer ring body two (32) of the openable and closable support assembly (15).

6. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 2, characterized in that: The upper rope head adjustment assembly (12) includes a transverse fixed beam (67) fixedly installed inside the desulfurization and dust removal body (1), a sliding block (44) slidably installed on the transverse fixed beam (67), and a longitudinal moving beam (43) fixedly installed at the lower end of the sliding block (44). The transverse fixed beam (67) and the longitudinal moving beam (43) are perpendicular to each other. A sliding groove is provided on the desulfurization and dust removal body (1) for sliding at both ends of the longitudinal moving beam (43). A sliding groove (49) is provided at one end, and a T-shaped block (50) is slidably arranged in the sliding groove (49). A rotary motor (45) is fixedly arranged at the lower end of the T-shaped block (50). A rotating circular block (46) is fixedly arranged on the motor output shaft (51) of the rotary motor (45). Several support rods (47) are evenly arranged around the rotating circular block (46). Several rope connecting seats (48) are provided on each support rod (47). The rope connecting seats (48) are fixedly connected to the other end of the adjusting rope.

7. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 6, characterized in that: The sliding block (44) is slidably mounted on the transverse fixed beam (67) through the through groove (52). A drive wheel (53) is also provided on the sliding block (44) and located in the through groove (52). The drive wheel (53) can drive the sliding block (44) to slide relative to the transverse fixed beam (67). A drive wheel (54) is provided on the longitudinal moving beam (43). The drive wheel (54) can drive the T-shaped block (50) to slide relative to the longitudinal moving beam (43).

8. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 6 or 7, characterized in that: The support rod five (47) is a telescopic rod, including an outer sleeve rod (59), an inner sleeve rod (61) and several intermediate sleeve rods (60) that are nested together. The outer sleeve rod (59) is inserted into the intermediate sleeve rod (60), and the intermediate sleeve rod (60) is inserted into the inner sleeve rod (61). A rope connecting seat two (48) is fixedly installed on the outer sleeve rod (59), a rope connecting seat two (48) is fixedly installed on each intermediate sleeve rod (60), and a rope connecting seat two (48) is fixedly installed on the inner sleeve rod (61). The two ends of each rope connecting seat two (48) are connected by a fork reduction linkage assembly (62).

9. The integrated desulfurization and dust removal device for sulfur-containing flue gas as described in claim 1, characterized in that: A filter replacement device (4) is also provided on one side of the desulfurization and dust removal main body (1). The filter replacement device (4) includes a guide rod (68), a lifting sleeve (55) vertically slidably disposed on the guide rod (68), a rotating sleeve (56) capable of rotating around the lifting sleeve (55), and a plurality of replacement sleeve connecting rods (57) fixedly disposed on the outside of the rotating sleeve (56). The end of the replacement sleeve connecting rod (57) is detachably connected to the sleeve to be replaced (58).

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