Ultrasonic agglomeration dedusting and demisting device of desulfurization system and operation method of ultrasonic agglomeration dedusting and demisting device

Abstract

The invention relates to the technical field of desulfurization towers, in particular to an ultrasonic agglomeration dedusting and demisting device of a desulfurization system and an operation method thereof, and aims to solve the problems that in the prior art, fine particles in flue gas are not subjected to agglomeration pretreatment, a targeted cleaning mechanism is lacked, and a demister is easily blocked due to filter residue attachment after long-term operation; and finally, the dedusting and demisting efficiency of the desulfurizing tower is reduced. According to the invention, the ultrasonic generation module is started, parameters are dynamically optimized based on a PLC and a fuzzy PID algorithm to induce agglomeration of PM2.5 and fog drops, the particle size is increased through a depressurization ring, and then efficient gas-liquid separation is carried out through a dual separation mechanism; when filter residues are attached, the motor drives the spray pipe to rotate and spray, the cleaning assembly is matched for wiping, the guide assembly guides waste liquid, the intelligent system adjusts in real time and triggers a cleaning program, a pretreatment and cleaning mechanism is established, blockage is eradicated, stable operation of parts is ensured, and the dust and mist removal efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of desulfurization tower technology, and in particular to an ultrasonic agglomeration dust removal and demisting device for a desulfurization system and its operation method. Background Technology

[0002] Desulfurization towers are core environmental protection equipment for industrial flue gas purification. They are mostly cylindrical tower structures that integrate functional components such as spray layers, reaction zones, demisters, and pressure-reducing rings. Common types include spray towers and packed towers. Their core function is to remove sulfides from industrial flue gas. By spraying alkaline absorbent into the tower, the absorbent fully contacts and reacts with the flue gas, converting gaseous sulfides into solid or liquid compounds, thus achieving the separation and removal of sulfides.

[0003] Chinese patent CN111905554B discloses a desulfurization tower for dust removal and demisting, comprising a desulfurization section, a demisting section, and an emission chimney connected in sequence. The demisting section is equipped with a tube-type dust collector and a baffle plate demister, with the baffle plate demister positioned above the tube-type dust collector and demister, and the distance between the baffle plate demister and the tube-type dust collector and demister being 1–1.8 m. This method can utilize existing wet desulfurization towers for modification, requiring minimal investment and allowing for rapid construction. Adjustments to the upper and lower fixed plate structures enhance the stability of the tube-type dust collector and demister, making construction easier and facilitating inspection and maintenance. Modifications to the desulfurization tower's baffle plate and other structures eliminate secondary entrainment of liquid film captured during the tube-type dust and mist removal process, eliminating gypsum rain and achieving ultra-low emissions of flue gas.

[0004] In the aforementioned patent, existing desulfurization towers, when performing dust removal and demisting, all modify wet desulfurization towers by installing two-stage demisters in the demisting section and adjusting structures such as fixed plates and baffles to eliminate secondary entrainment and gypsum rain, and achieve ultra-low emissions of flue gas. However, this approach does not pre-treat the agglomeration of fine particles in the flue gas, making it difficult to fully capture small-diameter particles. Furthermore, it lacks a targeted cleaning mechanism, and long-term operation is prone to demister blockage due to filter residue adhesion. In addition, there is no dedicated waste liquid diversion and isolation design, nor does it involve intelligent dynamic control, making it impossible to optimize the operating status in real time based on flue gas parameters. Ultimately, this leads to a reduction in the dust removal and demisting efficiency of the desulfurization tower.

[0005] Therefore, we propose an ultrasonic agglomeration dust removal and demisting device for desulfurization systems and its operation method. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes an ultrasonic agglomeration dust removal and demisting device for desulfurization system and its operation method, which solves the problem in the background art that the lack of pretreatment for agglomeration of fine particles in flue gas and the lack of a targeted cleaning mechanism make the demisting tower prone to blockage due to filter residue adhesion during long-term operation, which ultimately reduces the dust removal and demisting efficiency of the desulfurization tower.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an ultrasonic agglomeration dust removal and demisting device for a desulfurization system, comprising a tower tube, wherein a demisting component for demisting, a pressure reducing ring, and a spray layer are sequentially fixedly installed on the inner wall of the tower tube, an ultrasonic generating module is fixedly installed on the outer surface of the tower tube, and an intelligent control system is provided inside the tower tube, wherein a PLC and a PID are provided inside the intelligent control system. The demisting component includes a fixing ring fixedly installed on the inner wall of the tower tube. A demisting wire mesh and a cyclone demister are fixedly installed on the inner wall of the fixing ring. A central rod is fixedly installed on the inner wall of both the cyclone demister and the demisting wire mesh. A water pipe is movably installed inside the central rod fixedly installed with the demisting wire mesh. A cleaning component for cleaning the demisting wire mesh is fixedly installed on the outer surface of the water pipe. Guide components are fixedly installed on the outer surface of both sets of central rods. One set of guide components is located below the demisting wire mesh, and the other set of guide components is located below the cyclone demister.

[0008] Furthermore, nozzles A and B are fixedly installed on the outer surface of the water pipe. Nozzle A is located above the demister wire mesh, and nozzle B is located above the cyclone demister. A water inlet is opened on the upper surface of the water pipe. Nozzles are fixedly installed on the outer surface of nozzles A and B. The nozzle of nozzle A is perpendicular to the demister wire mesh, and the nozzle of nozzle B is set at an angle.

[0009] Furthermore, nozzle B and the cleaning assembly are on the same vertical line, nozzle B and nozzle A are symmetrically offset, and nozzle B and water pipe are fixedly installed by bolts.

[0010] Furthermore, base plates are fixedly installed on the outer surfaces of both sets of center rods. A motor is fixedly installed inside one set of center rods, and a water pipe is movably installed inside the other set of center rods. An installation groove is fixedly installed at the output end of the motor, and the installation groove is fixedly installed to the bottom of the water pipe by bolts.

[0011] Furthermore, the cleaning component includes a horizontal plate fixedly installed on the outer surface of the water pipe, a threaded rod movably disposed inside the horizontal plate, a gear fixedly installed at one end of the threaded rod, a sleeve plate sleeved on the outer surface of the threaded rod, and a slider movably disposed inside the sleeve plate; One set of central rods has teeth fixedly installed on its upper surface, and the teeth mesh with the gears.

[0012] Furthermore, a threaded hole is provided through one end of the sleeve plate, and a sliding plate is provided inside the threaded hole. The sliding plate is slidably connected to the reciprocating threaded groove on the outer surface of the threaded rod. A rectangular groove is provided on one side of the sleeve plate, and a limit groove is provided on the inner wall of the rectangular groove. The rectangular groove is adapted to the slider.

[0013] Furthermore, a reciprocating groove is provided on the lower surface of the horizontal plate, and a column is provided on the upper surface of the slider. The column is slidably connected to the reciprocating groove. Limiting plates are fixedly installed on both sides of the slider. The limiting plates are slidably connected to the limiting groove. A sponge plate is fixedly installed on the lower surface of the slider. The lower surface of the sponge plate is in contact with the upper surface of the demisting wire mesh.

[0014] Furthermore, the guiding assembly includes a top ring fixedly installed on the outer surface of the central rod, a sliding ring movably installed on the outer surface of the central rod, the lower surface of the sliding ring fitting against the upper surface of the base plate, and slots extending through the surfaces of both the top ring and the sliding ring. A top rod is fixedly installed inside the slot on the surface of the top ring, and a bottom rod is fixedly installed inside the slot on the surface of the sliding ring. An unfolding plate is movably installed on the outer surface of the top rod, a waterproof cloth is fixedly installed on one side of the unfolding plate, a side plate is fixedly installed on the inner wall of the unfolding plate, a short rod is fixedly installed inside the side plate, a flipping plate is fixedly installed on the outer surface of the short rod, one end of the flipping plate is sleeved on the outer surface of the bottom rod, and the side plate is located at the upper middle part of the unfolding plate. An electric telescopic rod is fixedly installed on the lower surface of the sliding ring, and the lower surface of the electric telescopic rod is fixedly installed with the base plate.

[0015] Furthermore, a channel is provided inside the fixing ring, a connecting block is fixedly installed on the inner wall of the channel, a guide plate is fixedly installed on the inner wall of the fixing ring, the guide plate is connected to the channel, the guide plate is in contact with the unfolded waterproof cloth and unfolded plate, and a drainage pipe is connected to the outside of the channel.

[0016] Another technical solution proposed in this invention: an operation method for an ultrasonic agglomeration dust removal and demisting device for a desulfurization system, comprising the following steps: S1. Start the ultrasonic generator module and set the ultrasonic generator module to a frequency of 20kHz-100kHz and a power of 5kW-20kW. Relying on PLC and fuzzy PID algorithm, the parameters are dynamically optimized according to the flue gas flow rate to induce PM2.5 and mist droplet agglomeration for 0.5s-1s. The flue gas is depressurized in stages by the depressurization ring, which increases the particle size of the agglomerates to 10μm-50μm, laying the groundwork for separation. S2. After pretreatment, the flue gas first flows through the cyclone demister. Since the rotation angle of the blades inside the cyclone demister is 26°~30°, when the flue gas passes through the blades, the flue gas rotates at a tangential speed of 15m / s-25m / s, and is centrifugally separated. Then it is intercepted and filtered by a 60-mesh 316L stainless steel demister wire mesh. The dual mechanism achieves a gas-liquid separation efficiency of ≥85%. S3. When filter residue adheres to the surface of the demister wire mesh and the cyclone demister, start the motor to drive the water pipe and spray pipes A and B to rotate and spray. It can also drive the cleaning component to wipe the wire mesh. At the same time, it can also allow the guide component to unfold to form a cone shape, introduce the waste liquid into the channel for discharge, and avoid cross-contamination. S4. The system collects flue gas flow rate, temperature and pressure data through the intelligent system, dynamically adjusts ultrasonic parameters, and automatically triggers the cleaning program or adjusts the cleaning frequency according to the resistance change of the demisting component. During operation, if it is necessary to repair or replace the component, the connection between the water pipe and the mounting groove and the nozzle B and the water pipe can be disassembled by bolts, the water pipe can be taken out from the center rod, and the component can be replaced and reinstalled.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes an ultrasonic agglomeration dust removal and demisting device for a desulfurization system and its operation method. First, the ultrasonic generator module is activated and set to a frequency of 20kHz-100kHz and a power of 5kW-20kW. Based on a PLC and a fuzzy PID algorithm, dynamic optimization is performed according to the flue gas flow rate, inducing PM2.5 and mist droplet agglomeration for 0.5s-1s. Then, the flue gas undergoes a stepped depressurization process through a pressure-reducing ring, increasing the agglomerate particle size to 10-50μm. Subsequently, the pretreated flue gas flows at a tangential velocity of 15m / s-25m / s through a cyclone demister with blade rotation angles of 26°-30°. 3. Centrifugal separation is performed, followed by filtration through a 60-mesh 316L stainless steel demisting wire mesh. This dual mechanism achieves a gas-liquid separation efficiency of ≥85%. When filter residue adheres to the surface of the demisting wire mesh and the cyclone demister, the motor is started to drive the water pipe and spray pipes A and B to rotate and spray. At the same time, the cleaning component wipes the demisting wire mesh and guides the component to unfold into a cone shape to introduce waste liquid into the channel for discharge to avoid cross-contamination. Afterward, the intelligent system collects flue gas flow rate, temperature and pressure data to dynamically adjust the ultrasonic parameters. Then, it automatically triggers the cleaning program or adjusts the cleaning frequency according to the resistance change of the demisting component. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 A schematic diagram of the overall structure according to one embodiment of the present invention is shown for illustrative purposes. Figure 2 A schematic diagram of the internal structure of a tower tube according to an embodiment of the present invention is shown for illustrative purposes. Figure 3 A schematic diagram of the internal structure of a defogging component according to an embodiment of the present invention is shown for illustrative purposes. Figure 4A schematic diagram illustrating the disassembled structure of a defogging component according to an embodiment of the present invention is shown. Figure 5 This is a schematic diagram illustrating the disassembled structure of the central rod, demister wire mesh, and cyclone demister according to an embodiment of the present invention. Figure 6 A schematic diagram of the central rod and guide assembly structure according to an embodiment of the present invention is shown for illustrative purposes. Figure 7 A schematic diagram of a split-center rod structure according to an embodiment of the present invention is shown for illustrative purposes. Figure 8 This is a schematic diagram illustrating the interaction between the central rod and the water pipe and cleaning components according to an embodiment of the present invention. Figure 9 A schematic diagram illustrating the disassembled structure of a cleaning component according to an embodiment of the present invention is shown. Figure 10 The diagram illustrates a split structure of the guide component according to an embodiment of the present invention.

[0019] Labels in the diagram: 1. Tower tube; 2. Demisting component; 21. Fixing ring; 211. Channel; 212. Connecting block; 213. Guide plate; 22. Demisting wire mesh; 23. Swirl plate demister; 24. Center rod; 241. Base plate; 242. Mounting plate; 243. Motor; 244. Tooth; 25. Guide assembly; 251. Top ring; 252. Top rod; 253. Unfolding plate; 254. Waterproof cloth; 255. Side plate; 256. Tilting plate; 257. Slip ring; 25 8. Base rod; 259. Electric telescopic rod; 26. Water pipe; 261. Spray nozzle A; 262. Spray nozzle B; 27. Cleaning assembly; 271. Horizontal plate; 272. Reciprocating screw; 273. Gear; 274. Reciprocating groove; 275. Sleeve plate; 2751. Rod hole; 2752. Rectangular groove; 2753. Limiting groove; 276. Slider; 2761. Column; 2762. Limiting plate; 2763. Sponge board; 3. Ultrasonic generating module; 4. Pressure reducing ring; 5. Spray layer. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0021] According to one embodiment of the present invention, Figures 1-10An ultrasonic agglomeration dust removal and demisting device for a desulfurization system includes a tower tube 1. A demisting component 2, a pressure reducing ring 4, and a spray layer 5 are sequentially fixedly installed on the inner wall of the tower tube 1. An ultrasonic generating module 3 is fixedly installed on the outer surface of the tower tube 1. An intelligent control system is installed inside the tower tube 1. The intelligent control system is equipped with a PLC and a PID controller. The demisting component 2 includes a fixing ring 21 fixedly installed on the inner wall of the tower tube 1. A demisting wire mesh 22 and a cyclone demister 23 are fixedly installed on the inner wall of the fixing ring 21. A central rod 24 is fixedly installed on the inner wall of both the cyclone demister 23 and the demisting wire mesh 22. A water pipe 26 is movably installed inside the central rod 24 fixedly installed with the demisting wire mesh 22. A cleaning component 27 for cleaning the demisting wire mesh 22 is fixedly installed on the outer surface of the water pipe 26. Guide components 25 are fixedly installed on the outer surfaces of both sets of central rods 24. One set of guide components 25 is located below the demisting wire mesh 22, and the other set of guide components 25 is located below the cyclone demister 23. Through centrifugal separation and interception filtration by the demisting wire mesh 22 and the cyclone demister 23, the demisting wire mesh 22 and the cyclone demister 23 achieve the desired effect. A dual mechanism achieves gas-liquid separation, thereby improving separation efficiency. Subsequently, water pipe 26 can clean the cyclone demister 23 and the demister wire mesh 22 separately, ensuring stable gas-liquid filtration and separation performance of the demister wire mesh 22 and the cyclone demister 23, and avoiding the decrease in flow efficiency or damage to filtration accuracy due to blockage. Furthermore, the design of the guide component 25 allows the separated liquid to enter the fixed ring 21 for individual separation. The separated liquid can be orderly collected and guided into the fixed ring 21 for individual collection and export, avoiding liquid retention or backflow into the flue gas channel and causing secondary entrainment. At the same time, it reduces the interference of liquid on subsequent processing stages, thereby further improving the flue gas separation and purification efficiency of the desulfurization tower.

[0022] Spray pipes A261 and B262 are fixedly installed on the outer surface of water pipe 26. Spray pipe A261 is located above the demister wire mesh 22, and spray pipe B262 is located above the cyclone demister 23. A water inlet is opened on the upper surface of water pipe 26. Nozzles are fixedly installed on the outer surface of spray pipes A261 and B262. The nozzle of spray pipe A261 is perpendicular to the demister wire mesh 22, and the nozzle of spray pipe B262 is set at an angle. When it is necessary to clean the demister wire mesh 22 and the cyclone demister 23, water is sprayed out through the nozzles of spray pipes A261 and B262 to clean the demister wire mesh 22 and the cyclone demister 23. At this time, the angled setting of the nozzle of spray pipe B262 allows the sprayed water to fit more closely to the blades of the cyclone demister 23, so that the impact of the water flow directly carries away the impurities attached to the blade surface, ensuring the efficiency of the cyclone demister 23 in subsequent flue gas treatment.

[0023] The nozzle B262 and the cleaning component 27 are on the same vertical line. The nozzle B262 and the nozzle A261 are symmetrically staggered. The nozzle B262 and the water pipe 26 are fixedly installed with bolts. With the staggered and symmetrical nozzles A261 and B262, and with the guiding effect of the guiding component 25, the cleaning liquid can be sprayed to cover the surfaces of the demister wire mesh 22 and the cyclone demister 23 without dead angles when cleaning them. The guiding component 25 can also allow the liquid to flow directly into the fixed ring 21. The design of fixing the nozzle B262 and the water pipe 26 with bolts allows for flexible adjustment of the nozzle angle during the installation stage, so that it can be precisely matched with the tilt angle of the blades of the cyclone demister 23. During cleaning, the directional impact force of the high-pressure water flow can directly peel off and remove stubborn impurities attached to the blade surface, further improving the cleaning effect and ensuring that the demister wire mesh 22 and the cyclone demister 23 maintain high-efficiency gas-liquid separation performance for a long time.

[0024] Both sets of center rods 24 have base plates 241 fixedly installed on their outer surfaces. One set of center rods 24 has a motor 243 fixedly installed inside, while the other set of center rods 24 has a water pipe 26 movably installed inside. The output end of the motor 243 has a mounting groove 242 fixedly installed. The mounting groove 242 is fixed to the bottom of the water pipe 26 with bolts. The motor 243 is fixed to the water pipe 26. Because the water pipe 26 and the demisting wire mesh 22 are movably installed, when the motor 243 starts, it will cause the water pipe 26 to rotate. At this time, the rotating water pipe 26 will drive the nozzle A261 and nozzle B262 to rotate at a constant speed. The rotating nozzle A261 and nozzle B262 will clean the demisting wire mesh 22 and the vortex plate demister 23. Because the water pipe 26 is fixed to the motor 243 with bolts, and the nozzle B262 is also fixed to the water pipe 26 with bolts, the water pipe 26 can be removed from the center rod 24 for replacement at any time.

[0025] Cleaning component 27 includes a horizontal plate 271 fixedly installed on the outer surface of water pipe 26, a threaded rod 272 movably arranged inside the horizontal plate 271, a gear 273 fixedly installed at one end of the threaded rod 272, a sleeve plate 275 sleeved on the outer surface of the threaded rod 272, and a slider 276 movably arranged inside the sleeve plate 275. One of the central rods 24 has teeth 244 fixedly installed on its upper surface. The teeth 244 mesh with the gear 273. When the water pipe 26 rotates, the gear 273 rotates along with it because of the meshing with the teeth 244. This causes the sleeve 275 to move at a constant speed along the threaded rod 272. At this time, the horizontal plate 271, which is symmetrically arranged with the nozzle A261, will cause the sleeve 275 to wipe the surface of the demisting wire mesh 22 with the slider 276. Then, because the sleeve 275 is movably connected to the threaded rod 272, the sleeve 275 will reciprocate on the surface of the threaded rod 272, thereby improving the cleaning effect on the demisting wire mesh 22.

[0026] One end of the sleeve plate 275 has a threaded hole 2751, and a sliding plate is provided inside the threaded hole 2751. The sliding plate is slidably connected to the reciprocating threaded groove on the outer surface of the threaded rod 272. A rectangular groove 2752 is provided on one side of the sleeve plate 275. A limiting groove 2753 is provided on the inner wall of the rectangular groove 2752. The rectangular groove 2752 is adapted to the slider 276. The design of the limiting groove 2753 can improve the stability of the slider 276 when it moves horizontally. The through rectangular groove 2752 allows the slider 276 to move horizontally, thereby improving the cleaning effect in conjunction with the uniformly moving sleeve plate 275.

[0027] A reciprocating groove 274 is provided on the lower surface of the horizontal plate 271, and a column 2761 is provided on the upper surface of the slider 276. The column 2761 is slidably connected to the reciprocating groove 274. Limiting plates 2762 are fixedly installed on both sides of the slider 276, and the limiting plates 2762 are slidably connected to the limiting groove 2753. A sponge plate 2763 is fixedly installed on the lower surface of the slider 276, and the lower surface of the sponge plate 2763 is in contact with the upper surface of the defogging wire mesh 22. When the sleeve plate 275 moves the slider 276, the slider 276 will move laterally back and forth using the sliding connection between the reciprocating groove 274 and the column 2761, so that the sponge plate 2763 can improve the cleaning effect on the defogging wire mesh 22. Since the sponge plate 2763 is in a compressed state on the surface of the defogging wire mesh 22, the moving sponge plate 2763 will fully wipe the gaps on the surface of the defogging wire mesh 22, further improving the cleaning effect.

[0028] The guide assembly 25 includes a top ring 251 fixedly mounted on the outer surface of the center rod 24. A slip ring 257 is movably disposed on the outer surface of the center rod 24. The lower surface of the slip ring 257 is in contact with the upper surface of the base plate 241. Both the top ring 251 and the slip ring 257 have through slots. A top rod 252 is fixedly installed inside the slot on the surface of the top ring 251. A bottom rod 258 is fixedly installed inside the slot on the surface of the slip ring 257. An extension is movably disposed on the outer surface of the top rod 252. A waterproof cloth 254 is fixedly installed on one side of the unfolded plate 253. A side plate 255 is fixedly installed on the inner wall of the unfolded plate 253. A short rod is fixedly installed inside the side plate 255. A flip plate 256 is fixedly installed on the outer surface of the short rod. One end of the flip plate 256 is sleeved on the outer surface of the bottom rod 258. The side plate 255 is located at the upper middle part of the unfolded plate 253. An electric telescopic rod 259 is fixedly installed on the lower surface of the slip ring 257. The lower surface of the electric telescopic rod 259 is flush with the bottom plate 241. When the desulfurization tower stops transporting flue gas and needs to clean the demister wire mesh 22 and the cyclone demister 23, the electric telescopic rod 259 is activated first, causing the electric telescopic rod 259 to rise with the slip ring 257. At this time, the rising slip ring 257 will drive the tilting plate 256 to rotate clockwise, and the unfolding plate 253 connected to the tilting plate 256 will rotate counterclockwise. At this time, multiple sets of unfolding plates 253 with waterproof cloth 254 will unfold simultaneously. The unfolded plates 253 will isolate the demister wire mesh 22 and the cyclone demister 23. The sprayed liquid will flow directly into the fixed ring 21 through the surface of the waterproof cloth 254 and the unfolding plate 253, preventing the waste liquid from cleaning the demister wire mesh 22 from flowing onto the surface of the cyclone demister 23 and causing a decrease in the cleaning effect of the cyclone demister 23. The guide component 25 located below the cyclone demister 23 is used to introduce the liquid into the fixed ring 21 for unified discharge.

[0029] The fixing ring 21 has a channel 211 inside, and a connecting block 212 is fixedly installed on the inner wall of the channel 211. A guide plate 213 is fixedly installed on the inner wall of the fixing ring 21. The guide plate 213 is connected to the channel 211 and contacts the unfolded waterproof cloth 254 and the unfolding plate 253. A drain pipe is connected to the inside of the channel 211. Through the design of the guide plate 213, the waterproof cloth 254 and the unfolding plate 253 can be unfolded. With the guide plate 213, a cone shape can be formed, allowing wastewater to enter the inside of the channel 211 along the surface of the waterproof cloth 254 and the unfolding plate 253, and finally be discharged through the drain pipe.

[0030] Another technical solution proposed in this invention: an operation method for an ultrasonic agglomeration dust removal and demisting device for a desulfurization system, comprising the following steps: S1. Start the ultrasonic generator module 3 and set the ultrasonic generator module 3 to a frequency of 20kHz-100kHz and a power of 5kW-20kW. Relying on the PLC and fuzzy PID algorithm, the parameters are dynamically optimized according to the flue gas flow rate to induce PM2.5 and mist droplets to agglomerate for 0.5s-1s. The flue gas is depressurized in stages by the pressure reducing ring 4, which increases the particle size of the agglomerates to 10μm-50μm, laying the groundwork for separation. S2. After pretreatment, the flue gas first flows through the cyclone demister 23. Since the rotation angle of the blades inside the cyclone demister 23 is 26°-30°, when the flue gas passes through the blades, the flue gas rotates at a tangential speed of 15m / s-25m / s, and is centrifugally separated. Then it is intercepted and filtered by the 60-mesh 316L stainless steel demister wire mesh 22. The dual mechanism achieves a gas-liquid separation efficiency of ≥85%. S3. When filter residue adheres to the surface of the demister wire mesh 22 and the cyclone demister 23, start the motor 243 to drive the water pipe 26 and the spray pipes A261 and B262 to rotate and spray. It can also drive the cleaning component 27 to wipe the wire mesh 22. At the same time, it can also allow the guide component 25 to unfold to form a cone shape, introduce the waste liquid into the channel 211 for discharge, and avoid cross-contamination. S4. The system collects flue gas flow rate, temperature and pressure data through the intelligent system, dynamically adjusts ultrasonic parameters, and automatically triggers the cleaning program or adjusts the cleaning frequency according to the resistance change of the demisting component. During operation, if it is necessary to repair or replace the component, the connection between the water pipe 26 and the mounting groove 242, and the connection between the spray pipe B262 and the water pipe 26 can be disassembled by bolts. The water pipe 26 can be taken out from the center rod 24. After the component is replaced, it can be reinstalled and reset.

[0031] Specifically, when the flue gas moves upward from below tower tube 1, the ultrasonic generator module 3 is first activated, set to a frequency of 20kHz-100kHz and a power of 5kW-20kW. Relying on the PLC and fuzzy PID algorithm, the parameters are dynamically optimized based on the flue gas flow rate, inducing PM2.5 and mist droplet agglomeration for 0.5s-1s. Then, the flue gas undergoes staged depressurization through the pressure-reducing ring 4, increasing the agglomerate particle size to 10μm-50μm, preparing for subsequent separation. The pretreated flue gas then flows through the cyclone demister 23. Since the internal blade rotation angle of this demister is 2... At an angle of 6°–30°, the flue gas rotates at a tangential speed of 15 m / s–25 m / s as it passes through the blades, achieving centrifugal separation. It then passes through a 60-mesh 316L stainless steel demister wire mesh 22 for interception and filtration. This dual mechanism achieves a gas-liquid separation efficiency of ≥85%. When filter residue adheres to the surface of the demister wire mesh 22 and the cyclone demister 23, the motor 243 inside the central rod 24 is activated, driving the water pipe 26 and spray nozzles A261 and B262 to rotate synchronously and spray water. The vertical nozzle of spray nozzle A261 sprays water to fully cover the demister wire mesh 22. The inclined nozzle of B262, in contact with the blades of the cyclone demister 23, impacts stubborn impurities. Simultaneously, the water pipe 26 rotates, causing the gear 273 of the cleaning component 27 to mesh with the teeth 244 on the central rod 24. This drives the threaded rod 272 to rotate, causing the sleeve 275 to reciprocate. The sleeve 275 then drives the slider 276 to reciprocate laterally through the reciprocating groove 274 of the column 2761 and the horizontal plate 271. This allows the compressed sponge plate 2763 to thoroughly wipe away impurities from the gaps in the demister wire mesh 22. Simultaneously, the electric telescopic rod 259 of the guide component 25 is activated, driving... The slip ring 257 rises, causing the flip plate 256 to rotate clockwise, which in turn causes the unfolding plate 253 to unfold synchronously with the waterproof cloth 254, forming a cone shape with the guide plate 213 of the fixed ring 21. The cleaning waste liquid is introduced into the channel 211 and discharged through the drain pipe to avoid cross-contamination. Finally, the intelligent system continuously collects flue gas flow, temperature and pressure data to dynamically adjust the ultrasonic parameters. It also automatically triggers the cleaning program or adjusts the cleaning frequency according to the resistance changes of the demisting component, ensuring that the demisting wire mesh 22 and the cyclone plate demister 23 maintain high-efficiency separation performance for a long time, ultimately improving the dust removal and demisting efficiency of the desulfurization tower.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ultrasonic agglomeration dust removal and demisting device for a desulfurization system, characterized in that, The system includes a tower tube, on the inner wall of which a demisting component, a pressure reducing ring, and a spray layer are sequentially fixedly installed. An ultrasonic generating module is fixedly installed on the outer surface of the tower tube. An intelligent control system is installed inside the tower tube, and the intelligent control system is equipped with a PLC and a PID controller. The demisting component includes a fixing ring fixedly installed on the inner wall of the tower tube. A demisting wire mesh and a cyclone demister are fixedly installed on the inner wall of the fixing ring. A central rod is fixedly installed on the inner wall of both the cyclone demister and the demisting wire mesh. A water pipe is movably installed inside the central rod fixedly installed with the demisting wire mesh. A cleaning component for cleaning the demisting wire mesh is fixedly installed on the outer surface of the water pipe. Guide components are fixedly installed on the outer surfaces of both sets of central rods. One set of guide components is located below the demisting wire mesh, and the other set of guide components is located below the cyclone demister.

2. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 1, characterized in that: Spray pipe A and spray pipe B are fixedly installed on the outer surface of the water pipe. Spray pipe A is located above the demister wire mesh, and spray pipe B is located above the cyclone demister. A water inlet is opened on the upper surface of the water pipe. Nozzles are fixedly installed on the outer surface of both spray pipe A and spray pipe B. The nozzle of spray pipe A is perpendicular to the demister wire mesh, and the nozzle of spray pipe B is set at an angle.

3. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 2, characterized in that: The nozzle B is on the same vertical line as the cleaning component. The nozzle B is symmetrically and offset from the nozzle A. The nozzle B is fixed to the water pipe by bolts.

4. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 3, characterized in that: Both sets of central rods have base plates fixedly installed on their outer surfaces. One set of central rods has a motor fixedly installed inside, while the other set of central rods has a water pipe movably installed inside. The output end of the motor has a mounting groove fixedly installed, and the mounting groove is fixedly installed to the bottom of the water pipe by bolts.

5. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 4, characterized in that: The cleaning component includes a horizontal plate fixedly installed on the outer surface of a water pipe, a threaded rod movably disposed inside the horizontal plate, a gear fixedly installed at one end of the threaded rod, a sleeve plate sleeved on the outer surface of the threaded rod, and a slider movably disposed inside the sleeve plate; One set of the central rods has teeth fixedly installed on its upper surface, and the teeth mesh with gears.

6. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 5, characterized in that: One end of the sleeve plate has a threaded hole, and a sliding plate is provided inside the threaded hole. The sliding plate is slidably connected to the reciprocating threaded groove on the outer surface of the threaded rod. A rectangular groove is provided on one side of the sleeve plate, and a limit groove is provided on the inner wall of the rectangular groove. The rectangular groove is adapted to the slider.

7. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 6, characterized in that: The lower surface of the horizontal plate is provided with a reciprocating groove, the upper surface of the slider is provided with a column, the column is slidably connected to the reciprocating groove, limit plates are fixedly installed on both sides of the slider, the limit plates are slidably connected to the limit groove, and a sponge plate is fixedly installed on the lower surface of the slider, the lower surface of the sponge plate is in contact with the upper surface of the demisting wire mesh.

8. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 4, characterized in that: The guiding assembly includes a top ring fixedly installed on the outer surface of a central rod. A slip ring is movably disposed on the outer surface of the central rod. The lower surface of the slip ring is in contact with the upper surface of the base plate. Both the top ring and the slip ring have through slots. A top rod is fixedly installed inside the slot on the surface of the top ring. A bottom rod is fixedly installed inside the slot on the surface of the slip ring. An unfolding plate is movably disposed on the outer surface of the top rod. A waterproof cloth is fixedly installed on one side of the unfolding plate. A side plate is fixedly installed on the inner wall of the unfolding plate. A short rod is fixedly installed inside the side plate. A flipping plate is fixedly disposed on the outer surface of the short rod. One end of the flipping plate is sleeved on the outer surface of the bottom rod. The side plate is located at the upper middle part of the unfolding plate. An electric telescopic rod is fixedly installed on the lower surface of the slip ring. The lower surface of the electric telescopic rod is fixedly installed with the base plate.

9. The ultrasonic agglomeration dust removal and demisting device for desulfurization systems as described in claim 8, characterized in that: The fixing ring has a channel inside, a connecting block is fixedly installed on the inner wall of the channel, a guide plate is fixedly installed on the inner wall of the fixing ring, the guide plate is connected to the channel, the guide plate is in contact with the unfolded waterproof cloth and unfolded plate, and a drain pipe is connected to the outside of the channel.

10. The operating method of the ultrasonic agglomeration dust removal and demisting device for a desulfurization system as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Start the ultrasonic generator module and set the ultrasonic generator module to a frequency of 20kHz-100kHz and a power of 5kW-20kW. Relying on PLC and fuzzy PID algorithm, the parameters are dynamically optimized according to the flue gas flow rate to induce PM2.5 and mist droplet agglomeration for 0.5s-1s. The flue gas is depressurized in stages by the depressurization ring, which increases the particle size of the agglomerates to 10μm-50μm, laying the groundwork for separation. S2. After pretreatment, the flue gas first flows through the cyclone demister. Since the rotation angle of the blades inside the cyclone demister is 26°-30°, when the flue gas passes through the blades, the flue gas rotates at a tangential speed of 15m / s-25m / s, and is centrifugally separated. Then it is intercepted and filtered by a 60-mesh 316L stainless steel demister wire mesh. The dual mechanism achieves a gas-liquid separation efficiency of ≥85%. S3. When filter residue adheres to the surface of the demister wire mesh and the cyclone demister, start the motor to drive the water pipe and spray pipes A and B to rotate and spray. It can also drive the cleaning component to wipe the wire mesh. At the same time, it can also allow the guide component to unfold to form a cone shape, introduce the waste liquid into the channel for discharge, and avoid cross-contamination. S4. The system collects flue gas flow rate, temperature and pressure data through the intelligent system, dynamically adjusts ultrasonic parameters, and automatically triggers the cleaning program or adjusts the cleaning frequency according to the resistance change of the demisting component. During operation, if it is necessary to repair or replace the component, the connection between the water pipe and the mounting groove and the nozzle B and the water pipe can be disassembled by bolts, the water pipe can be taken out from the center rod, and the component can be replaced and reinstalled.

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