Sodium sulfide precipitation cooling smoke desulfurization and denitration equipment

Abstract

The application relates to the technical field of desulfurization and denitration towers, and discloses a sodium sulfide precipitation cooling smoke desulfurization and denitration equipment, which comprises a cyclone assembly, a plurality of fixing holes are formed in the middle of a fixing assembly, the fixing holes of the fixing assembly are provided with the cyclone assembly, the outer wall of a movable assembly is movably connected with the inner wall of a tower body, the movable assembly is located below the fixing assembly, a connecting assembly is connected between the cyclone assembly and the movable assembly, a power assembly is arranged on the inner wall of the tower body, and the power assembly is connected with the movable assembly. The limiting piece is arranged between the outer fixed ring and the inner fixed ring and between the adjacent two cyclone blades. When the limiting piece is controlled to move up and down by the moving piece, the inner wall of the outer fixed ring, the outer wall of the inner fixed ring and the surface of the cyclone blade can be effectively and timely cleaned, so that the possibility that the gap between the two cyclone blades is blocked by dirt is reduced, the machine does not need to be stopped, and the working efficiency is effectively ensured.

Description

Technical Field

[0001] This application relates to the field of desulfurization and denitrification tower technology, and in particular to a sodium sulfide precipitation cooling flue gas desulfurization and denitrification device. Background Technology

[0002] In the sodium sulfide chemical process, the ash cake formed by the combustion of sodium sulfide raw materials needs to be contacted with cold water to settle and cool, thus instantly releasing a large amount of smoke. The smoke contains harmful substances such as sulfur and nitrogen, which can cause serious pollution to the atmospheric environment and serious harm to human health. Therefore, the smoke needs to be purified. The common purification equipment is the desulfurization and denitrification tower. Its working process is as follows: the smoke enters the tower, first passes through the efficiency enhancement module to make it evenly distributed, then passes through the reaction module to react with ozone for denitrification, then passes through the spray module to react with alkaline solution for desulfurization, and finally passes through the demisting module to reduce its liquid content, and finally becomes clean gas and is discharged. The alkaline solution is continuously transported from the slurry pool at the bottom of the tower to the spray module under the drive of the circulating pump, and sprayed downwards to react with the smoke in the opposite direction, and then falls back to the bottom of the tower to achieve recycling.

[0003] However, existing desulfurization and denitrification towers still have some shortcomings in use: First, the efficiency enhancement module is composed of multiple sets of swirl vane modules, which can make the gas and liquid phases cross-flow, ensuring mass transfer efficiency and avoiding flooding risk. However, the surface of the swirl vanes is prone to scaling, which may cause the gap between two swirl vanes to be blocked by scale, losing the swirling effect and affecting working efficiency. Second, the tower wall is the place with a relatively low temperature in the entire system. Supersaturated solutions cool down and precipitate here to form soft scale, especially in the liquid level fluctuation zone (i.e., the boundary between the high and low liquid levels of the slurry). Moreover, the temperature and concentration of the solution in this area will change periodically. If not treated in time, the soft scale can easily form hard scale, increasing the difficulty of cleaning. Summary of the Invention

[0004] This application proposes a sodium sulfide precipitation cooling fume desulfurization and denitrification device, which has the advantages of an effective improved efficiency-enhancing module, timely treatment of soft scale without shutdown, improved work efficiency, and reduced cleaning difficulty, thereby solving the above-mentioned problems.

[0005] To achieve the above objectives, this application adopts the following technical solution: a sodium sulfide precipitation cooling flue gas desulfurization and denitrification device, comprising: A fixing component, wherein the outer wall of the fixing component is fixedly connected to the inner wall of the tower body; A swirl assembly, wherein a plurality of fixing holes are provided in the middle of the fixing assembly, and a swirl assembly is provided in the fixing holes of the fixing assembly; The movable component has its outer wall movably connected to the inner wall of the tower body, and is located below the fixed component. A connecting component is provided between the vortex component and the movable component; A power assembly is installed on the inner wall of the tower body and is connected to the movable assembly.

[0006] Furthermore, the swirl assembly includes: An outer retaining ring is movably fitted into the fixing hole of the fixing component, and the top surface of the outer retaining ring is flush with the top surface of the fixing component. An outer retaining plate is fixedly fitted onto the outer wall of the outer retaining ring, and the top surface of the outer retaining plate is connected to the bottom surface of the fixing component by bolts. The inner fixed ring is movably sleeved inside the outer fixed ring, and the top surface of the inner fixed ring is higher than the top surface of the outer fixed ring, while the bottom surface of the inner fixed ring is lower than the bottom surface of the outer fixed ring. A swirl vane is provided between the outer solid ring and the inner solid ring. The top surface of the swirl vane is higher than the top surface of the outer solid ring, and the bottom surface of the swirl vane is lower than the bottom surface of the outer solid ring. One side of the swirl vane is fixedly connected to the wall of the inner solid ring, and the other side of the swirl vane is movably engaged with the wall of the outer solid ring. The limiting component is provided between the outer solid ring and the inner solid ring, and each limiting component is located between two adjacent swirl vanes; The movable component consists of a main rod and branch rods. The main rod is movably sleeved within the inner retaining ring, and the bottom end of the main rod is fixedly connected to the top end of the connecting assembly. The top end of the main rod is movably engaged with the middle of the branch rod, and each end of the branch rod is fixedly connected to the inner bottom end of each limiting component.

[0007] Furthermore, the limiting member has a limiting hole on the side facing the outer fixed ring, and the limiting hole is located in the lower half of the limiting member. The inner bottom surface of the limiting member is provided with an inclined surface, and the inclined surface is higher on the side facing the inner fixed ring and lower on the side facing the outer fixed ring. When the swirl assembly is working normally, the limiting member is located in the lower half of the swirl vane, and the limiting hole of the limiting member is located outside and below the outer fixed ring. When the swirl assembly is cleaning, the limiting member is located in the upper half of the swirl vane, and the limiting hole of the limiting member is located inside and above the outer fixed ring.

[0008] Furthermore, the lower half of the inner wall of the outer retaining ring is adapted to the outer wall of the limiting member, while the upper half of the inner wall of the outer retaining ring does not contact the outer wall of the limiting member.

[0009] Furthermore, the top surface of the inner solid ring is flush with the top surface of the swirl vane, and the bottom surface of the inner solid ring is flush with the bottom surface of the swirl vane. Alternatively, the top surface of the inner solid ring may be lower than the top surface of the swirl vane, and the bottom surface of the inner solid ring may be higher than the bottom surface of the swirl vane.

[0010] Furthermore, the active component consists of two rings and four straight rods, with the two rings connected by the four straight rods.

[0011] Furthermore, the connecting component is radially oriented, and all moving parts are fixedly connected to the connecting component, which is fixedly connected to the upper half of the movable component.

[0012] Furthermore, the number of power components is two, and the two power components are symmetrically arranged. The power components include: A control pipe is fixedly attached to the wall of the tower body, and the control pipe is in the shape of an inverted L. A control rope is movably sleeved inside the control tube; A vertical connecting rod is movably sleeved on one end of the control tube, and one end of the vertical connecting rod is fixedly connected to one end of the control rope, while the other end of the vertical connecting rod is fixedly connected to the top of the movable component. A horizontal connecting rod is movably sleeved at the other end of the control tube, and one end of the horizontal connecting rod is fixedly connected to the other end of the control rope. The other end of the cross link is movably connected to the end of the power piston; A power support is provided, wherein the power piston is externally fixedly sleeved with a power support, and the end of the power support is fixedly connected to the outside of the tower body.

[0013] Furthermore, the fixed component, swirl component, connecting component, moving component, and power component together constitute an efficiency enhancement module, which is a component of the working mechanism.

[0014] Furthermore, the working mechanism also includes: Gas valves: The tower body wall is provided with four gas valves from bottom to top, and the lowest gas valve is located between the slurry pool and the efficiency enhancement module. A liquid valve is provided at the bottom of the wall of the tower body, and the liquid valve is connected to the slurry tank; The reaction module has one end passing through the tower body and communicating with the gas storage tank, and the other end of the reaction module is fixedly mounted inside the tower body. The reaction module is located above the efficiency enhancement module, and the reaction module corresponds to the height of a gas valve. A spray module, one end of which is connected to the slurry pool inside the tower, and the other end of which is fixedly mounted inside the tower. The spray module is located above the reaction module and is at the same height as a gas valve. The demisting module is fixedly installed inside the tower body, located above the spraying module, and the spraying module is at the same height as a gas valve.

[0015] The beneficial effects of this invention are as follows: This application provides a sodium sulfide precipitation cooling flue gas desulfurization and denitrification device. By designing a cyclone assembly, which includes an outer solid ring, an inner solid ring, cyclone vanes, a limiting component, and a moving component, the limiting component is located between the outer and inner solid rings and between two adjacent cyclone vanes. When the moving component controls the up and down movement of the limiting component, it effectively and promptly cleans the inner wall of the outer solid ring, the outer wall of the inner solid ring, and the surface of the cyclone vanes, thereby reducing the possibility of the gap between the two cyclone vanes being blocked by scale. No downtime is required, effectively ensuring working efficiency.

[0016] By designing the shape of the limiting component, a limiting hole is opened on the side of the limiting component facing the outer solid ring, and an inclined surface is provided on the bottom surface of the limiting component. When the limiting component is in the lower half of the vortex vane under the control of the moving component, the limiting component is tightly fitted with the outer solid ring, so that the limiting component, the inner solid ring, and the vortex vane are stably engaged in the outer solid ring, which promotes the side entry and side exit of liquid and the vertical entry and vertical exit of gas, effectively preventing gas and liquid from colliding and affecting its normal operation. When the limiting component is in the upper half of the vortex vane under the control of the moving component, the limiting component is not tightly fitted with the outer solid ring, so that the limiting component, the inner solid ring, and the vortex vane are movably engaged in the outer solid ring. Thus, the limiting component continuously receives liquid, and the liquid continuously impacts the outer solid ring at an angle, which drives the inner solid ring, the vortex vane, and the limiting component to rotate, which can generate a rotation and vibration effect on the scale, further improving the cleaning effect.

[0017] By setting a connecting component and a movable component below the fixed component and the vortex component, with the connecting component connected to the movable component and the movable component connected to the power component, the power component can control the up and down movement of the movable component and the connecting component, thereby controlling the up and down movement of the movable component and providing power for the movement of the limiting component. At the same time, since the movable component is located in the liquid fluctuation zone and the dry-wet alternation zone of the tower body, the up and down movement of the movable component effectively rubs the inner wall of the tower body in this area, and cleans the soft scale formed therein in a timely manner, preventing the formation of hard scale and increasing the difficulty of cleaning. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a three-dimensional structural diagram of the tower body in this invention, located in a cross-section. Figure 3 This is a three-dimensional structural diagram of the spray module in this invention; Figure 4This is a three-dimensional structural diagram of the efficiency-enhancing module in this invention; Figure 5 This is a three-dimensional structural diagram of the efficiency enhancement module in the disassembled state in this invention; Figure 6 This is a three-dimensional structural diagram of the efficiency enhancement module located in the cross-section of the power component in this invention; Figure 7 In this invention Figure 6 Enlarged structural diagram at point A; Figure 8 This is a three-dimensional structural diagram of the swirl assembly in this invention; Figure 9 This is a top view of the swirl assembly in this invention; Figure 10 This is a three-dimensional structural diagram of the cyclone assembly in its disassembled state in this invention; Figure 11 This is a three-dimensional structural diagram of the swirl assembly located in the cross-section of the outer solid ring in this invention; Figure 12 This is a three-dimensional structural diagram of the cross-section of the swirl assembly in this invention.

[0019] In the diagram: 1. Tower body; 2. Working mechanism; 21. Gas valve; 22. Liquid valve; 23. Reaction module; 24. Spray module; 25. Demisting module; 3. Enhancement module; 31. Fixed component; 32. Swirl component; 33. Connecting component; 34. Moving component; 4. Power component; 41. Control pipe; 42. Control rope; 43. Vertical connecting rod; 44. Horizontal connecting rod; 45. Power piston; 46. Power support; 5. Outer fixed ring; 50. Outer fixed plate; 6. Inner fixed ring; 7. Swirl vane; 8. Limiting component; 9. Moving component; 91. Main rod; 92. Branch rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: A sodium sulfide precipitation cooling flue gas desulfurization and denitrification device, including a tower body 1, such as... Figure 1 The tower body 1 is equipped with a working mechanism 2, specifically: like Figure 2The working mechanism 2 includes a gas valve 21, a liquid valve 22, a reaction module 23, a spray module 24, a demisting module 25, and an efficiency-enhancing module 3. Four gas valves 21 are installed on the wall of the tower body 1 from bottom to top, with the lowest gas valve 21 located above the slurry tank. This gas valve 21 is used for smoke to enter the tower body 1. A liquid valve 22 is installed at the bottom of the wall of the tower body 1 and is connected to the slurry tank. There can be two liquid valves 22; one liquid valve 22 facilitates the replenishment of slurry (i.e., alkali solution) to the slurry tank to maintain balance. Acidity / alkalinity, another liquid valve 22 facilitates the discharge of used slurry from the slurry tank to clean solid particles at the bottom of the tank. One end of the reaction module 23 passes through the tower body 1 and is connected to the ozone storage tank. The other end of the reaction module 23 is fixedly mounted inside the tower body 1. The reaction module 23 is located above the enhancement module 3, and its height corresponds to a gas valve 21. Ozone is injected into the reaction module 23, which reacts with nitrogen oxides in the smoke, thereby achieving the denitrification process. Figure 3 One end of the spray module 24 is connected to the slurry pool inside the tower body 1, and the other end of the spray module 24 is fixedly mounted inside the tower body 1. The spray module 24 is located above the reaction module 23, and the spray module 24 is at the same height as a gas valve 21. The spray module 24 is equipped with a circulation pump. The alkaline solution in the slurry pool is transported to the middle of the tower body 1 and sprayed downwards under the action of the spray module 24, and comes into contact with the smoke in the opposite direction to complete the reaction, and then falls back into the slurry pool to achieve recycling, thereby realizing the desulfurization process. The demisting module 25 is fixedly mounted inside the tower body 1. The demisting module 25 is located above the spray module 24, and the spray module 24 is at the same height as a gas valve 21. Using the inertial collision principle of the demisting module 25, the droplets containing pollutants are intercepted to ensure the cleanliness of the discharged gas. In summary, after the smoke enters, it flows upwards and undergoes denitrification, desulfurization and demisting treatments, and finally becomes clean gas and is discharged.

[0022] like Figure 2 The enhancement module 3 is located between the slurry tank and the reaction module 23, and above the bottom gas valve 21. It helps the newly entered flue gas to move upward and distribute evenly, and helps the reacted liquid to move downward and converge into the slurry tank. Figures 3-6The efficiency enhancement module 3 includes a fixed component 31, a swirl component 32, a connecting component 33, a movable component 34, and a power component 4. The outer wall of the fixed component 31 is fixedly connected to the inner wall of the tower body 1. Several fixing holes are opened in the middle of the fixed component 31, and the swirl component 32 is installed in the fixing holes of the fixed component 31. The fixed component 31 and the swirl component 32 are used to achieve uniform smoke distribution. The outer wall of the movable component 34 is movably connected to the inner wall of the tower body 1, and the movable component 34 is located below the fixed component 31. The movable component 34 can clean the inner wall of the tower body 1 and remove soft scale in time. The connecting component 33 connects the swirl component 32 and the movable component 34, which can provide a transmission function for the swirl component 32 and the connecting component 33. The power component 4 is set on the inner wall of the tower body 1 and connected to the movable component 34. The power component 4 can provide a power source for the movement of the movable component 34, the connecting component 33, and the swirl component 32.

[0023] The swirl assembly 32 includes an outer solid ring 5, an inner solid ring 6, a swirl vane 7, a limiting member 8, and a moving member 9, specifically: like Figures 8-12 The outer retaining ring 5 is movably fitted into the fixing hole of the fixing component 31, and the top surface of the outer retaining ring 5 is flush with the top surface of the fixing component 31. It can guide the liquid above the fixing component 31 to drain down to the bottom of the fixing component 31 through the outer retaining ring 5. The outer retaining plate 50 is fixedly fitted to the outer wall of the outer retaining ring 5, and the top surface of the outer retaining plate 50 is connected to the bottom surface of the fixing component 31 by bolts. The outer retaining plate 50 is used to ensure the stability of the outer retaining ring 5 and improve the convenience of replacing the outer retaining ring 5.

[0024] like Figures 8-12 An inner solid ring 6 is movably fitted inside the outer solid ring 5. The top surface of the inner solid ring 6 is higher than the top surface of the outer solid ring 5, and the bottom surface of the inner solid ring 6 is lower than the bottom surface of the outer solid ring 5. Several swirl vanes 7 are arranged between the outer solid ring 5 and the inner solid ring 6. The top surface of the swirl vanes 7 is higher than the top surface of the outer solid ring 5, and the bottom surface of the swirl vanes 7 is lower than the bottom surface of the outer solid ring 5. One side of the swirl vanes 7 is fixedly connected to the wall of the inner solid ring 6, and the other side of the swirl vanes 7 is movably engaged with the wall of the outer solid ring 5. The structural design of the inner solid ring 6 and the swirl vanes 7 effectively ensures the stability of both mounted on the outer solid ring 5. The top surface of the inner solid ring 6 is flush with the top surface of the swirl vane 7, and the bottom surface of the inner solid ring 6 is flush with the bottom surface of the swirl vane 7. In this case, with the cooperation of the limiting member 8, the inner solid ring 6 and the swirl vane 7 can completely separate the gas and liquid, avoiding the liquid overflow phenomenon caused by the two colliding. Alternatively, the top surface of the inner solid ring 6 is lower than the top surface of the swirl vane 7, and the bottom surface of the inner solid ring 6 is higher than the bottom surface of the swirl vane 7. In this case, with the cooperation of the limiting member 8, the inner solid ring 6 and the swirl vane 7 will not completely separate the gas and liquid, so that the gas is forced to rotate by the action of the swirl vane 7 and breaks up the liquid, increasing the gas-liquid contact area and enhancing the mass transfer effect.

[0025] like Figures 8-12 Several limiting members 8 are provided between the outer solid ring 5 and the inner solid ring 6, and each limiting member 8 is located between two adjacent vortex vanes 7. The limiting members 8 can effectively rub against the inner wall of the outer solid ring 5, the outer wall of the inner solid ring 6 and the surface of the vortex vanes 7, so as to achieve effective and timely cleaning of the three, thereby reducing the possibility of the gap between the two vortex vanes 7 being blocked by scale and ensuring working efficiency. The limiting member 8 has a limiting hole on the side facing the outer solid ring 5, and the limiting hole is located in the lower half of the limiting member 8. The inner bottom surface of the limiting member 8 is provided with an inclined surface, and the inclined surface is higher on the side of the inner solid ring 6 and lower on the side of the outer solid ring 5, which can promote the liquid to be discharged in the direction away from the inner solid ring 6, thereby helping to realize the different functions of the limiting member 8 at different stages.

[0026] like Figures 8-12 The moving part 9 consists of a main rod 91 and a branch rod 92. The main rod 91 is movably sleeved in the inner fixed ring 6, and the bottom end of the main rod 91 is fixedly connected to the top end of the connecting assembly 33. The top end of the main rod 91 is movably engaged with the middle part of the branch rod 92. Each end of the branch rod 92 is fixedly connected to the inner bottom end of each limiting member 8. The connection design of the main rod 91 and the branch rod 92 can transmit the thrust of the connecting assembly 33, which can help push the limiting member 8 to move along the swirl plate 7. In addition, the main rod 91 and the branch rod 92 are movably sleeved, so that the branch rod 92 can rotate around the main rod 91, which can help the inner fixed ring 6, the swirl plate 7 and the limiting member 8 rotate in the outer fixed ring 5.

[0027] like Figures 8-12 When the swirl assembly 32 is operating normally, the limiting member 8 is located in the lower half of the swirl vane 7, and the limiting hole of the limiting member 8 is located below the outer solid ring 5. At this time, the inner wall of the lower half of the outer solid ring 5 is adapted to the outer wall of the limiting member 8, so that the limiting member 8 can fit tightly with the outer solid ring 5 in this position. This makes the limiting member 8, the inner solid ring 6, and the swirl vane 7 stably locked in the outer solid ring 5, and the three cannot rotate around the outer solid ring 5. Therefore, the limiting member 8 can guide the liquid to be discharged laterally between the outer solid ring 5 and the inner solid ring 6, and can also prevent the gas from entering vertically between the outer solid ring 5 and the inner solid ring 6. Thus, by utilizing the design of the limiting member 8, the liquid is allowed to enter and exit laterally between the outer solid ring 5 and the inner solid ring 6, and the gas is allowed to enter and exit vertically within the inner solid ring 6, effectively preventing the gas and liquid from colliding and affecting its normal operation.

[0028] like Figures 8-12When the vortex assembly 32 is cleaning, the limiting member 8 is located in the upper half of the vortex vane 7, and the limiting hole of the limiting member 8 is located inside and above the outer solid ring 5. At this time, the inner wall of the upper half of the outer solid ring 5 does not contact the outer wall of the limiting member 8, so that the limiting member 8 is not tightly fitted with the outer solid ring 5 in this position. This allows the limiting member 8, the inner solid ring 6, and the vortex vane 7 to be movably engaged in the outer solid ring 5, and all three can rotate around the outer solid ring 5. Therefore, the limiting member 8 continuously receives liquid from above, and the liquid flows towards the limiting hole due to the action of the inclined surface, thereby continuously impacting the outer solid ring 5 at an angle, so as to drive the inner solid ring 6, the vortex vane 7, and the limiting member 8 to rotate. This can generate rotation and vibration on the scale, further improving the cleaning effect.

[0029] Example 2, based on Example 1, such as Figures 4-5 The active component 34 consists of two rings and four straight rods, with the two rings connected by the four straight rods. The lower ring is located in the liquid level fluctuation zone of the tower body 1 (i.e., the boundary between the high and low liquid levels of the slurry). This ring can reciprocate to the upper and lower parts of the liquid level, effectively cleaning the inner wall of the tower body 1 in this area. The upper ring is located in the dry and wet alternation zone of the tower body 1 (i.e., the area above the smoke inlet that is not completely covered by the spray layer). This ring can reciprocate to rub the inner wall of the tower body 1 in this area. In summary, it can promptly clean the soft scale generated on the inner wall of the tower body 1, avoiding the formation of hard scale and increasing the difficulty of cleaning.

[0030] like Figures 4-5 The connecting component 33 is radial, and all the moving parts 9 are fixedly connected to the connecting component 33. The connecting component 33 is fixedly connected to the upper half of the movable component 34, and can provide a transmission effect on the moving parts 9 and the movable component 34, so that the movable component 34 moves upward and synchronously pushes the moving parts 9 upward, and the movable component 34 moves downward and synchronously pushes the moving parts 9 downward.

[0031] like Figures 6-7There are two power components 4, symmetrically arranged. Each power component 4 includes a control pipe 41, a control rope 42, a vertical connecting rod 43, a horizontal connecting rod 44, a power piston 45, and a power support 46. The control pipe 41 is fixedly attached to the wall of the tower body 1, and the control pipe 41 is inverted L-shaped. The control rope 42 is movably sleeved inside the control pipe 41. One end of the control pipe 41 is movably sleeved with the vertical connecting rod 43, and one end of the vertical connecting rod 43 is fixedly connected to one end of the control rope 42. The other end of the vertical connecting rod 43 is fixedly connected to the top of the movable component 34. The other end of the control pipe 41 is movably sleeved with the horizontal connecting rod 44, and one end of the horizontal connecting rod 44 is fixedly connected to the other end of the control rope 42. The other end of the horizontal connecting rod 45 is connected to the power piston 46. The end of 5 is movably connected, and the power piston 45 is externally fixedly sleeved with a power bracket 46. The end of the power bracket 46 is fixedly connected to the outside of the tower body 1. The power piston 45 controls the horizontal connecting rod 44, the control rope 42 and the vertical connecting rod 43 to move inside the tower body 1, thereby driving the movable component 34 to move along the inner wall of the tower body 1, thereby cleaning the inner wall of the tower body 1. It should be noted that when the vortex component 32 is working normally, if the limiting member 8 is located in the lower half of the vortex plate 7, the movable component 34 is located below the liquid surface of the slurry pool under the push of the power component 4. When the vortex component 32 is cleaning, if the limiting member 8 is located in the upper half of the vortex plate 7, the movable component 34 is located above the liquid surface of the slurry pool under the pull of the power component 4.

[0032] The working principle of this invention is as follows: When the tower body 1 is operating normally, the power unit 4 controls the moving component 34 to be below the liquid surface of the slurry pool. At this time, the limiting component 8 is located in the lower half of the swirl vane 7, and the limiting hole of the limiting component 8 is located below the outer solid ring 5. Since the inner wall of the lower half of the outer solid ring 5 is adapted to the outer wall of the limiting component 8, the limiting component 8 can be tightly fitted with the outer solid ring 5 at this position, so that the limiting component 8, the inner solid ring 6, and the swirl vane 7 are stably locked in the outer solid ring 5, realizing that the liquid enters and exits from the side between the outer solid ring 5 and the inner solid ring 6, and the gas enters and exits vertically in the inner solid ring 6, effectively preventing the gas and liquid from colliding and affecting its normal operation.

[0033] When cleaning is being performed inside the tower body 1, the power unit 4 first controls the movable component 34 to move up and down repeatedly across the slurry pool surface, then controls the movable component 34 to be above the slurry pool surface, and finally controls the movable component 34 to be below the slurry pool surface. During this process, if the movable component 34 moves up and down, it can effectively rub against the inner wall of the tower body 1, thereby promptly cleaning the soft scale formed on it and preventing the formation of hard scale, which would increase the difficulty of cleaning. At the same time, the limiting component 8 moves up and down, which can effectively clean the inner wall of the outer solid ring 5, the outer wall of the inner solid ring 6, and the surface of the swirl vane 7, thereby reducing the possibility of the gap between the two swirl vanes 7 being blocked by scale. In summary, the tower body 1 does not need to be stopped, effectively ensuring working efficiency; if the movable component 34 is below the slurry pool surface... Above the surface, the limiting component 8 is located in the upper half of the swirl vane 7, and the limiting hole of the limiting component 8 is located inside the upper part of the outer solid ring 5. Since the inner wall of the upper half of the outer solid ring 5 does not contact the outer wall of the limiting component 8, the limiting component 8 is not tightly fitted with the outer solid ring 5 at this position, so that the limiting component 8 is movably engaged with the inner solid ring 6 and the swirl vane 7 in the outer solid ring 5. Therefore, the limiting component 8 will continuously receive the liquid from above. The liquid flows towards the limiting hole due to the action of the inclined surface, thereby continuously impacting the outer solid ring 5 at an angle, so as to drive the inner solid ring 6, the swirl vane 7 and the limiting component 8 to rotate, which can generate rotation and vibration on the scale, further improving the cleaning effect. If the movable component 34 is below the liquid surface of the slurry pool, the tower body 1 can work normally.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sodium sulfide precipitation cooling flue gas desulfurization and denitrification device, characterized in that, include: A fixing component (31) is fixedly connected to the inner wall of the tower body (1) by its outer wall; The swirl assembly (32) has several fixing holes in the middle of the fixing assembly (31), and the swirl assembly (32) is installed in the fixing holes of the fixing assembly (31). The movable component (34) is movably sleeved with the inner wall of the tower body (1), and the movable component (34) is located below the fixed component (31); A connecting component (33) is provided between the swirl component (32) and the movable component (34). Power assembly (4), which is disposed on the inner wall of the tower body (1) and is connected to the movable assembly (34); The swirling assembly (32) includes an outer fixed ring (5), an inner fixed ring (6), swirling vanes (7), limiting members (8), and moving members (9). The outer fixed ring (5) is movably fitted into the fixing hole of the fixing assembly (31). The inner fixed ring (6) is movably fitted inside the outer fixed ring (5). Several swirling vanes (7) are arranged between the outer fixed ring (5) and the inner fixed ring (6). Several limiting members (8) are arranged between the outer fixed ring (5) and the inner fixed ring (6). Each limiting member (8) is located between two adjacent swirl vanes (7). The moving member (9) is composed of a main rod (91) and a branch rod (92). The main rod (91) is movably sleeved in the inner fixed ring (6). The bottom end of the main rod (91) is fixedly connected to the top end of the connecting assembly (33). The top end of the main rod (91) is movably engaged with the middle part of the branch rod (92). Each end of the branch rod (92) is fixedly connected to the inner bottom end of each limiting member (8). The limiting member (8) has a limiting hole on the side facing the outer fixed ring (5), and the limiting hole is located in the lower half of the limiting member (8). The inner bottom surface of the limiting member (8) is provided with an inclined surface, and the inclined surface is higher on the side of the inner fixed ring (6) and lower on the side of the outer fixed ring (5). When the swirl assembly (32) is working normally, the limiting member (8) is located in the lower half of the swirl plate (7), and the limiting hole of the limiting member (8) is located outside and below the outer fixed ring (5). When the swirl assembly (32) is cleaning, the limiting member (8) is located in the upper half of the swirl plate (7), and the limiting hole of the limiting member (8) is located above the inside of the outer fixed ring (5). The lower half of the inner wall of the outer retaining ring (5) is adapted to the outer wall of the limiting member (8), and the upper half of the inner wall of the outer retaining ring (5) does not contact the outer wall of the limiting member (8).

2. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 1, characterized in that, The swirl assembly (32) further includes: The top surface of the outer ring (5) is flush with the top surface of the fixing component (31). The outer wall of the outer ring (5) is fixedly sleeved with an outer fixing plate (50), and the top surface of the outer fixing plate (50) is connected to the bottom surface of the fixing component (31) by bolts. The top surface of the inner ring (6) is higher than the top surface of the outer ring (5), and the bottom surface of the inner ring (6) is lower than the bottom surface of the outer ring (5). The top surface of the swirl vane (7) is higher than the top surface of the outer solid ring (5), and the bottom surface of the swirl vane (7) is lower than the bottom surface of the outer solid ring (5). One side of the swirl vane (7) is fixedly connected to the wall of the inner solid ring (6), and the other side of the swirl vane (7) is movably engaged with the wall of the outer solid ring (5).

3. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 2, characterized in that, The top surface of the inner solid ring (6) is flush with the top surface of the swirl vane (7), and the bottom surface of the inner solid ring (6) is flush with the bottom surface of the swirl vane (7). Alternatively, the top surface of the inner solid ring (6) is lower than the top surface of the swirl plate (7), and the bottom surface of the inner solid ring (6) is higher than the bottom surface of the swirl plate (7).

4. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 2, characterized in that, The active component (34) consists of two rings and four straight rods, with the two rings connected by the four straight rods.

5. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 2, characterized in that, The connecting component (33) is radial, and all moving parts (9) are fixedly connected to the connecting component (33). The connecting component (33) is fixedly connected to the upper half of the movable component (34).

6. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 2, characterized in that, The number of power components (4) is two, and the two power components (4) are symmetrically arranged. The power components (4) include: Control pipe (41), the control pipe (41) is fixedly connected to the wall of the tower body (1), and the control pipe (41) is in the shape of an inverted L; Control rope (42), the control tube (41) is movably sleeved with the control rope (42); A vertical connecting rod (43) is movably sleeved on one end of the control tube (41), and one end of the vertical connecting rod (43) is fixedly connected to one end of the control rope (42), and the other end of the vertical connecting rod (43) is fixedly connected to the top of the movable component (34); A horizontal connecting rod (44) is movably sleeved on the other end of the control tube (41), and one end of the horizontal connecting rod (44) is fixedly connected to the other end of the control rope (42); The other end of the cross link (44) is movably connected to the end of the power piston (45); The power support (46) is fixedly sleeved on the outside of the power piston (45), and the end of the power support (46) is fixedly connected to the outside of the tower body (1).

7. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 2, characterized in that, The fixed component (31), vortex component (32), connecting component (33), moving component (34) and power component (4) together constitute the efficiency enhancement module (3), and the efficiency enhancement module (3) is a component of the working mechanism (2).

8. The sodium sulfide precipitation cooling flue gas desulfurization and denitrification equipment according to claim 7, characterized in that, The working mechanism (2) also includes: Gas valve (21), the wall of the tower body (1) is provided with four gas valves (21) from bottom to top, and the lowest gas valve (21) is located between the slurry pool and the efficiency enhancement module (3); Liquid valve (22) is provided at the bottom of the wall of the tower body (1), and the liquid valve (22) is connected to the slurry tank; The reaction module (23) has one end passing through the tower body (1) and communicating with the gas storage tank. The other end of the reaction module (23) is fixedly mounted inside the tower body (1). The reaction module (23) is located above the efficiency enhancement module (3), and the reaction module (23) is at the same height as a gas valve (21). A spray module (24) is connected at one end to the slurry pool inside the tower body (1), and the other end of the spray module (24) is fixedly mounted inside the tower body (1). The spray module (24) is located above the reaction module (23), and the spray module (24) is at the same height as a gas valve (21). Demisting module (25) is fixedly mounted inside the tower body (1). The demisting module (25) is located above the spraying module (24), and the spraying module (24) is at the same height as a gas valve (21).

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