Flue gas desulfurization and denitrification treatment device with self-cleaning function

Abstract

The invention discloses a flue gas desulfurization and denitrification treatment device with a self-cleaning function, and relates to the technical field of flue gas treatment. Comprising a flue gas conveying system, a catalyst conveying system, a control system and a tower body, an air inlet and a feeding port are formed in the upper end of the tower body, an air outlet is formed in the lower end of the tower body, the air inlet is connected with the flue gas conveying system through a pipeline, the feeding port is connected with the catalyst conveying system through a pipeline, and the feeding port is communicated with external air through another group of pipelines; a driving motor is installed at the upper end of the tower body, an output shaft of the driving motor is connected with a transmission shaft, fan blades are installed on the transmission shaft, a mixing plate is installed below the fan blades, a cleaning plate is installed below the mixing plate, cleaning liquid is arranged in the cleaning plate, a fixing plate is installed below the cleaning plate, and a sliding plate is installed below the fixing plate. A filter screen is connected between the fixed plate and the sliding plate, vibration plates are installed on the two sides of the filter screen, and the catalyst conveying system is used for conveying a desulfurizing agent and a denitration agent.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas treatment, in particular to a flue gas desulfurization and denitrification treatment device with a self-cleaning function. Background Art

[0002] Flue gas desulfurization and denitrification treatment device is an environmental protection equipment used to remove harmful substances such as sulfur dioxide and nitrogen oxides in flue gas. It consists of two parts: desulfurization equipment and denitrification equipment, which are used to remove sulfur dioxide and nitrogen oxides in flue gas respectively to reduce the harm to the atmospheric environment and human health. Desulfurization and denitrification treatment devices are widely used in thermal power generation, steel smelting and other industries to solve the problems of flue gas emission difficulties and air pollution. The use of flue gas desulfurization and denitrification treatment devices is affected by environmental protection regulations. With the continuous upgrading of regulations, its application field will be further expanded.

[0003] The existing desulfurization and denitrification devices have the following main problems: (1) the heat of the flue gas is not recycled, resulting in heat waste; (2) the flue gas, denitrification agent and desulfurization agent are not fully dispersed and mixed, resulting in poor reaction effect; (3) the inside of the tower body or the filter screen is not cleaned, resulting in blockage of the inside of the tower body or the filter screen. Summary of the invention

[0004] The object of the present invention is to provide a flue gas desulfurization and denitrification treatment device with a self-cleaning function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flue gas desulfurization and denitrification treatment device with a self-cleaning function, comprising a flue gas delivery system, a catalyst delivery system and a control system, comprising a tower body, an air inlet and a feed inlet are arranged at the upper end of the tower body, and an air outlet is arranged at the lower end of the tower body, the air inlet is connected to the flue gas delivery system through a pipeline, the feed inlet is connected to the catalyst delivery system through a pipeline, and the feed inlet is connected to the external air through another set of pipelines;

[0006] A driving motor is installed at the upper end of the tower body, and the output shaft of the driving motor is connected to a transmission shaft, and a fan blade is installed on the transmission shaft, a mixing plate is installed below the fan blade, a cleaning plate is installed below the mixing plate, and a cleaning liquid is arranged inside the cleaning plate, a fixed plate is installed below the cleaning plate, a sliding plate is installed below the fixed plate, a filter screen is connected between the fixed plate and the sliding plate, and vibration plates are installed on both sides of the filter screen; the catalyst delivery system is used for delivering desulfurizer and desulfurization agent, the cleaning plate cleans the tower body while spraying the cleaning liquid, the vibration plate ensures the filtering effect of the filter screen by vibration, and the mixing plate mixes the desulfurizer, desulfurization agent and flue gas.

[0007] The two ends of the transmission shaft are rotatably mounted in the tower body through bearings, a plurality of cross bars are arranged at the upper end of the transmission shaft, and teeth are arranged at the middle and lower sides of the transmission shaft;

[0008] Several cross bars are arranged along the circumference of the transmission shaft, and spiral grooves are arranged on the cross bars. The spiral grooves are made of spirals, and the mixing plate is made of spiral twisting. A through hole is arranged inside the mixing plate, and the cross bar passes through the through hole. Several vertical shafts are arranged on the inner wall of the mixing plate near the through hole, and several vertical shafts are respectively inserted into the spiral grooves, and several vertical shafts slide in the spiral grooves.

[0009] A follower plate is rotatably mounted on one end of the mixing plate close to the transmission shaft through a bearing, a first spring is connected between the follower plate and the cross bar, the first spring is sleeved on the cross bar, and both ends of the first spring are electrically connected to the control system.

[0010] The cleaning plate is made of two groups of inner and outer disc plates connected together, a dust collecting plate is arranged on the upper side of the outer disc plate, the longitudinal section of the dust collecting plate is "V"-shaped, the dust collecting plate is in sliding contact with the inner wall of the tower body, multiple groups of sliding shafts and brushes are arranged on the outer side of the cleaning plate, the brushes are located between two adjacent groups of sliding shafts and in contact with the inner wall of the tower body, multiple groups of sliding grooves are arranged on the inner wall of the tower body outside the cleaning plate, and the multiple groups of sliding shafts are respectively inserted into the sliding grooves;

[0011] An annular chamber is arranged on the upper side of the cleaning plate, and a heat-conducting medium, an expansion membrane and a cleaning liquid are arranged in the annular chamber from the outside to the inside in sequence. The expansion membrane separates the heat-conducting medium and the cleaning liquid. A spray port is arranged on the lower side of the cleaning plate close to the cleaning liquid, and the spray port is connected with the cleaning liquid and faces the inner wall of the tower body.

[0012] A plurality of groups of metal blocks are arranged on the cleaning plate in contact with the heat-conducting medium, and the plurality of groups of metal blocks are located in the annular chamber. The heat-conducting medium is made of a material that expands when heated, and the expansion membrane is made of a flexible material. A coil A is buried in the tower body outside the cleaning plate, and both ends of the coil A are electrically connected to the control system. The metal blocks are in the magnetic field of coil A.

[0013] The fixed plate is arranged on the inner wall of the tower body, and the tower body on the upper side of the fixed plate is provided with a plurality of discharge holes, and a discharge box is arranged on the outer side of the tower body opposite to the discharge holes, and an exhaust valve is installed on the discharge box, and a solenoid valve is installed in the discharge hole, and the solenoid valve and the exhaust valve are both electrically connected to the control system.

[0014] A plurality of temperature difference plates A are arranged on the inner wall of the tower body and on the blades outside the fan body, and a plurality of temperature difference plates B are arranged on the inner wall of the bottom of the tower body, and the plurality of temperature difference plates A correspond to the plurality of temperature difference plates B one by one;

[0015] The temperature difference plate A and the temperature difference plate B are both provided with semiconductors of two different materials and a metal plate, one end of the semiconductors of the two different materials are connected to the metal plate, the two semiconductors on the temperature difference plate A and the two semiconductors on the temperature difference plate B are connected by wires, one of which is connected to a control system, the two semiconductors and the metal plate on the temperature difference plate A are the hot ends of the Seebeck effect, and the two semiconductors and the metal plate on the temperature difference plate B are the cold ends of the Seebeck effect.

[0016] A power transmission assembly is installed between the middle of the cleaning plate and the middle of the sliding plate and the transmission shaft, respectively. A plurality of guide shafts are arranged outside the transmission shaft above and below the sliding plate, and the sliding plate slides on the guide shafts.

[0017] The power transmission component includes a spiral cylinder, a coil B and a magnetorheological fluid. The interior of the spiral cylinder is hollow, and the exterior of the spiral cylinder is made of a magnetic shielding material to prevent the magnetic field of the coil A from interfering with the interior. The inner wall of the spiral cylinder is provided with a tooth shape that is the same as the middle and lower sides of the transmission shaft. The upper and lower sides of the spiral cylinder are rotatably mounted on the transmission shaft through bearings. The magnetorheological fluid is arranged in the spiral cylinder, and the coil B is buried in the spiral cylinder. The coil B is electrically connected to the control system, and the magnetorheological fluid is in the magnetic field of the coil B.

[0018] The middle part of the cleaning plate is threadedly connected to the outer side of one group of spiral cylinders, and the spiral cylinder in the middle of the cleaning plate is located in the middle of the transmission shaft. The middle part of the sliding plate is threadedly connected to the outer side of the other group of spiral cylinders, and the spiral cylinder in the middle of the sliding plate is located on the lower side of the transmission shaft.

[0019] A receiving plate is installed on one side of the vibration plate, and the receiving plate is arranged on the inner wall of the tower body. The vibration plate slides on the receiving plate and contacts the filter screen. A second spring is connected between the vibration plate and the receiving plate, and both ends of the second spring are electrically connected to the control system. A filling port is arranged on the tower body near the cleaning plate, and the filling port passes through the tower body and the cleaning plate through a bellows and is connected with the cleaning liquid; the driving motor is equipped with a built-in pressure sensor and an encoder, and a control panel is arranged on the tower body, and the control system is arranged in the control panel.

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

[0021] 1. Recycling the heat of flue gas reduces the energy consumption of the desulfurization and denitrification device. The two semiconductors and metal plates on the temperature difference plate A are the hot end of the Seebeck effect, and the two semiconductors and metal plates on the temperature difference plate B are the cold end of the Seebeck effect. Since the hot end is located on the upper side of the tower body and in contact with the high-temperature flue gas, and the cold end is located at the bottom of the tower body and in contact with the liquid and the gas and liquid after the reaction, the temperature of the hot end is higher than that of the cold end. The hot and cold ends generate current through the Seebeck effect and transmit it to the control system. The control system is used again after rectification and voltage conversion. By recycling the heat energy of the high-temperature flue gas, the energy utilization rate is improved and the energy consumption of the desulfurization and denitrification treatment device is reduced.

[0022] 2. Composite cleaning treatment of the tower body to improve the cleaning effect. The brush on the outside of the cleaning plate scrubs the inner wall of the tower body, realizing the composite cleaning treatment of the inner wall of the tower body by the cleaning liquid and the brush, improving the cleaning effect. The brush is driven up and down by the cleaning plate to scrub the inner wall of the tower body, and the cleaning liquid is sprayed at the same time to enhance the cleaning effect and ensure the cleanliness of the inside of the tower body.

[0023] 3. The desulfurizer, denitrifier and flue gas are dispersed and mixed by the mixing plate to speed up the reaction and improve the processing efficiency. The mixing plate can realize continuous forward and reverse rotation while revolving, so as to quickly disperse and mix the flue gas, denitrifier and desulfurizer, and improve the reaction effect of flue gas, denitrifier and desulfurizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 yes Figure 1 A front view of

[0026] Figure 3 yes Figure 2 Sectional view at the AA position;

[0027] Figure 4 yes Figure 3 A partial enlarged view of the middle B area;

[0028] Figure 5 yes Figure 3 A partial enlarged view of the middle C area;

[0029] Figure 6 yes Figure 3 A partial enlarged view of the D area in the middle;

[0030] Figure 7 yes Figure 3 The three-dimensional image after removing the tower body and drive motor, etc.;

[0031] Figure 8 yes Figure 7Schematic diagram of the structure after removing the fan blades and dust collecting plate;

[0032] Fig. 9 It is a schematic diagram of the structure of the cleaning plate after the expansion membrane is removed;

[0033] Fig.10 It is a schematic diagram of the installation structure of the cross bar, the mixing plate, the follower plate and the first spring.

[0034] In the figure: 1. control panel; 11. tower body; 111. air inlet; 112. feeding port; 113. air outlet; 114. sliding groove; 115. coil A; 116. discharge hole; 117. discharge box; 118. filling port; 2. drive motor; 21. transmission shaft; 211. dust collecting plate; 212. cross bar; 213. spiral groove; 214. tooth shape; 22. fan blade; 23. cleaning plate; 231. sliding shaft; 2 32. Annular chamber; 233. Spray port; 234. Expansion membrane; 235. Metal block; 24. Mixing plate; 241. Vertical axis; 242. Follower plate; 243. First spring; 25. Fixed plate; 26. Sliding plate; 261. Guide shaft; 27. Filter screen; 28. Vibrating plate; 281. Receiver plate; 282. Second spring; 29. ​​Temperature difference plate A; 291. Temperature difference plate B; 3. Spiral cylinder; 31. Coil B. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example: Figure 1-Figure 10As shown, the present invention provides a technical solution of a flue gas desulfurization and denitrification treatment device with a self-cleaning function, including a flue gas conveying system (not shown in the figure), a catalyst conveying system (not shown in the figure), a control system and a tower body 11, an air inlet 111 and a feed inlet 112 are arranged at the upper end of the tower body 11, an air outlet 113 is arranged at the lower end of the tower body 11, the air inlet 111 is connected to the flue gas conveying system through a pipeline, the feed inlet 112 is connected to the catalyst conveying system through a pipeline, and the feed inlet 112 is connected to the external air through another set of pipelines; a driving motor 2 is installed at the upper end of the tower body 11, and the output shaft of the driving motor 2 is connected to the transmission shaft 21, A fan blade 22 is installed on the transmission shaft 21, a mixing plate 24 is installed below the fan blade 22, a cleaning plate 23 is installed below the mixing plate 24, a cleaning liquid is arranged inside the cleaning plate 23, a fixed plate 25 is installed below the cleaning plate 23, a sliding plate 26 is installed below the fixed plate 25, a filter screen 27 is connected between the fixed plate 25 and the sliding plate 26, and vibration plates 28 are installed on both sides of the filter screen 27; the catalyst delivery system is used to deliver desulfurizer and desulfurization agent, the cleaning plate 23 sprays the cleaning liquid while cleaning the tower body 11, the vibration plate 28 ensures the filtering effect of the filter screen 27 by vibration, and the mixing plate 24 mixes the desulfurizer, desulfurization agent and flue gas.

[0037] Both ends of the transmission shaft 21 are rotatably installed in the tower body 11 through bearings, a plurality of cross bars 212 are arranged on the upper end of the transmission shaft 21, and teeth 214 are arranged in the middle and lower sides of the transmission shaft 21; the plurality of cross bars 212 are arranged along the circumference of the transmission shaft 21, and spiral grooves 213 are arranged on the cross bars 212, and the spiral grooves 213 are made of spirals. The mixing plate 24 is made of spiral twisting, and a through hole is penetrated inside the mixing plate 24, and the cross bars 212 pass through the through hole. A plurality of vertical shafts 241 are arranged on the inner wall of the mixing plate 24 near the through hole, and the plurality of vertical shafts 241 are respectively inserted into the spiral grooves 213, and the plurality of vertical shafts 241 slide in the spiral grooves 213.

[0038] A follower plate 242 is rotatably mounted on one end of the mixing plate 24 close to the transmission shaft 21 through a bearing. A first spring 243 is connected between the follower plate 242 and the cross bar 212. The first spring 243 is sleeved on the cross bar 212, and both ends of the first spring 243 are electrically connected to the control system.

[0039] The cleaning plate 23 is made of two sets of inner and outer disc plates connected together. A dust collecting plate 211 is arranged on the upper side of the outer disc plate. The longitudinal section of the dust collecting plate 211 is "V"-shaped. The dust collecting plate 211 is in sliding contact with the inner wall of the tower body 11. A plurality of sets of sliding shafts 231 and brushes (not shown in the figure) are arranged on the outer side of the cleaning plate 23. The brushes are located between two adjacent sets of sliding shafts 231 and are in contact with the inner wall of the tower body 11. A plurality of sets of sliding grooves 11 are arranged on the inner wall of the tower body 11 outside the cleaning plate 23. 4. Multiple groups of sliding shafts 231 are respectively inserted into the sliding grooves 114; a circular chamber 232 is arranged on the upper side of the cleaning plate 23, and a heat-conducting medium (not shown in the figure), an expansion membrane 234 and a cleaning liquid (not shown in the figure) are arranged in sequence in the circular chamber 232 from the outside to the inside, and the expansion membrane 234 separates the heat-conducting medium and the cleaning liquid, and a spraying port 233 is arranged on the lower side of the cleaning plate 23 close to the cleaning liquid, and the spraying port 233 is connected with the cleaning liquid and faces the inner wall of the tower body 11.

[0040] A plurality of metal blocks 235 are arranged on the cleaning plate 23 in contact with the heat-conducting medium. The plurality of metal blocks 235 are located in the annular chamber 232. The heat-conducting medium is made of a material that expands when heated. The expansion membrane 234 is made of a flexible material. A coil A115 is buried in the tower body 11 outside the cleaning plate 23. Both ends of the coil A115 are electrically connected to the control system. The metal blocks 235 are in the magnetic field of the coil A115.

[0041] The fixed plate 25 is arranged on the inner wall of the tower body 11, and the tower body 11 on the upper side of the fixed plate 25 is provided with a plurality of discharge holes 116. A discharge box 117 is arranged on the outer side of the tower body 11 opposite to the discharge holes 116. An exhaust valve is installed on the discharge box 117, and a solenoid valve is installed in the discharge hole 116. Both the solenoid valve and the exhaust valve are electrically connected to the control system.

[0042] A plurality of temperature difference plates A29 are arranged on the inner wall of the tower body 11 outside the fan blade 22 and on the fan blade 22, and a plurality of temperature difference plates B291 are arranged on the inner wall of the bottom of the tower body 11, and the plurality of temperature difference plates A29 and the plurality of temperature difference plates B291 correspond to each other one by one; semiconductors and metal plates of two different materials are arranged on the temperature difference plates A29 and the temperature difference plates B291, and one end of the semiconductors of the two different materials is connected to the metal plate, and the two semiconductors on the temperature difference plate A29 and the two semiconductors on the temperature difference plate B291 are connected by wires, one of which is connected to the control system, the two semiconductors and the metal plate on the temperature difference plate A29 are the hot end of the Seebeck effect, and the two semiconductors and the metal plate on the temperature difference plate B291 are the cold end of the Seebeck effect.

[0043] Power transmission components are respectively installed between the middle part of the cleaning plate 23 and the middle part of the sliding plate 26 and the transmission shaft 21. A plurality of guide shafts 261 are arranged on the outer side of the transmission shaft 21 above and below the sliding plate 26, and the sliding plate 26 slides on the guide shafts 261; the power transmission component includes a spiral cylinder 3, a coil B31 and a magnetorheological fluid (not shown in the figure). The interior of the spiral cylinder 3 is hollow, and the exterior of the spiral cylinder 3 is made of magnetic shielding material to prevent the magnetic field of the coil A115 from interfering with the interior. The inner wall of the spiral cylinder 3 is provided with a tooth shape 214 that is the same as the middle and lower side of the transmission shaft 21. The upper and lower sides of the spiral cylinder 3 are rotatably mounted on the transmission shaft 21 through bearings. The magnetorheological fluid is arranged in the spiral cylinder 3, and the coil B31 is buried in the spiral cylinder 3. The coil B31 is electrically connected to the control system, and the magnetorheological fluid is in the magnetic field of the coil B31.

[0044] The middle part of the cleaning plate 23 is threadedly connected to the outer side of one group of spiral cylinders 3, and the spiral cylinder 3 in the middle of the cleaning plate 23 is located in the middle of the transmission shaft 21. The middle part of the sliding plate 26 is threadedly connected to the outer side of the other group of spiral cylinders 3, and the spiral cylinder 3 in the middle of the sliding plate 26 is located on the lower side of the transmission shaft 21.

[0045] A receiving plate 281 is installed on one side of the vibration plate 28, and the receiving plate 281 is arranged on the inner wall of the tower body 11. The vibration plate 28 slides on the receiving plate 281 and contacts the filter screen 27. A second spring 282 is connected between the vibration plate 28 and the receiving plate 281. Both ends of the second spring 282 are electrically connected to the control system. A filling port 118 is arranged on the tower body 11 near the cleaning plate 23. The filling port 118 passes through the tower body 11 and the cleaning plate 23 through a bellows and is connected to the cleaning liquid; the driving motor 2 is equipped with a pressure sensor and an encoder, and a control panel 1 is arranged on the tower body 11, and the control system is arranged in the control panel 1.

[0046] Working principle: Press the start button on the control panel 1, the desulfurization and denitrification treatment device starts, the flue gas delivery system and the air inlet 111 cooperate to deliver the high-temperature flue gas to the tower body 11, the catalyst delivery system and the feed inlet 112 cooperate to deliver the desulfurizer and the denitrification agent to the tower body 11, the flue gas delivery system and the catalyst delivery system feed back the flow of the high-temperature flue gas, the desulfurizer and the denitrification agent to the control system, the control system controls the drive motor 2 to work and the second spring 282 to be continuously powered on and off, and the drive motor 2 drives the transmission The shaft 21 rotates, the transmission shaft 21 drives the fan blades 22 and a plurality of cross bars 212 to rotate, the cross bars 212 drive the mixing plate 24 to revolve, the mixing plate 24 fully mixes the flue gas, the desulfurizing agent and the desulfurizing agent, the sulfur and desulfurizing agent in the flue gas are removed and a reaction product is generated, the reaction product moves downward after passing through the dust collecting plate 211, the large particles of solid impurities are deposited on the filter screen 27, and the gas and liquid pass through the filter screen 27 and contact the temperature difference plate B291 at the bottom of the tower body 11, and are discharged from the gas outlet 113 at the bottom of the tower body 11;

[0047] When the control system continuously energizes and deenergizes the second spring 282, a mutually attractive magnetic field is generated between each turn of the second spring 282 after it is energized. The magnetic field compresses the second spring 282, causing the second spring 282 to shorten as a whole. The second spring 282 pulls the vibration plate 28 to move downward. After that, the control system deenergizes the second spring 282. The second spring 282 gradually becomes longer under the action of its own elastic force. The second spring 282 pushes the vibration plate 28 to move upward and hit the filter 27. By continuously energizing and deenergizing the second spring 282 through the control system, the vibration of the filter 27 is achieved, impurities are prevented from clogging the filter 27, and the normal filtering effect of the filter 27 is ensured.

[0048] When the transmission shaft 21 rotates, the encoder inside the drive motor 2 feeds back data to the control system, and the control system continuously powers on and off the first spring 243. After the first spring 243 is powered on, a magnetic field that attracts each other is generated between each turn of the first spring 243. The magnetic field compresses the first spring 243, causing the first spring 243 to shorten as a whole. The first spring 243 pulls the follower plate 242 to move toward the center of the transmission shaft 21 (positive movement), and the follower plate 242 pulls the mixing plate 24 to move. When the mixing plate 24 moves positively, the vertical axis 241 inside the mixing plate 24 slides along the spiral groove 213. The mixing plate 24 is moved so that it realizes positive rotation while revolving; thereafter, the control system cuts off the power to the first spring 243, and the first spring 243 gradually becomes longer under the action of its own elastic force. The first spring 243 pushes the mixing plate 24 to move away from the center of the transmission shaft 21 (reverse movement) through the following plate 242. The mixing plate 24 realizes reverse rotation while moving in the reverse direction with the cooperation of the vertical shaft 241 and the spiral groove 213. The mixing plate 24 realizes continuous positive rotation and reverse rotation while revolving, so that the flue gas, denitrification agent and desulfurization agent are quickly broken up and mixed, thereby improving the reaction effect of the flue gas, denitrification agent and desulfurization agent.

[0049] After the high-temperature flue gas, desulfurizer and denitrifier enter the tower body 11, they first contact with the fan blades 22 and the temperature difference plate A29 on the inner wall of the tower body 11. The fan blades 22 preliminarily mix the high-temperature flue gas, desulfurizer and denitrifier, and drive the flue gas, desulfurizer and denitrifier to continue to move downward, and then disperse and mix them again through the mixing plate 24 to enhance the mixing effect between the high-temperature flue gas, desulfurizer and denitrifier to accelerate the reaction speed. The two semiconductors and metal plates on the temperature difference plate A29 are the hot ends of the Seebeck effect. The temperature difference plate B291 The two semiconductors and metal plates on the tower are the cold ends of the Seebeck effect. Since the hot end is located on the upper side of the tower body 11 and in contact with the high-temperature flue gas, and the cold end is located at the bottom of the tower body 11 and in contact with the liquid and the reacted gas and liquid, the temperature of the hot end is higher than that of the cold end. The hot end and the cold end generate current through the Seebeck effect and transmit it to the control system. The control system uses it again after rectification and voltage transformation. By recovering the heat energy of the high-temperature flue gas, the energy utilization rate is improved and the energy consumption of the desulfurization and denitrification treatment device is reduced.

[0050] When the desulfurization and denitration treatment device works for a set time, it will enter the cleaning mode, the control system will shut down the catalyst delivery system and the flue gas delivery system, and connect the catalyst delivery system to the outside air through another set of pipes, and then connect the coil B31 in the spiral cylinder 3 in the middle of the cleaning plate 23 and the coil A115 to the circuit, an alternating magnetic field is generated in the coil A115, and the metal block 235 in the cleaning plate 23 cuts the magnetic flux lines and generates heat in the alternating magnetic field of the coil A115, and the metal block 235 conducts the heat to the heat-conducting medium, and the heat-conducting medium expands after absorbing the heat, and the heat-conducting medium squeezes the expansion film 234 to bend toward the cleaning liquid side, and the cleaning liquid pressure increases while being sprayed from the spray port 233 onto the inner wall of the tower body 11, and the tower body 11 is cleaned by liquid impact;

[0051] After the coil B31 in the middle of the cleaning plate 23 is connected to the circuit, a magnetic field is generated at both ends of the coil B31. The magnetic field of the coil B31 causes the magnetorheological fluid in the spiral cylinder 3 in the middle of the cleaning plate 23 to change from liquid to solid, and the viscosity increases significantly, so that the friction force of the tooth profile 214 between the spiral cylinder 3 and the transmission shaft 21 increases, and the power transmission between the transmission shaft 21 and the spiral cylinder 3 in the middle of the cleaning plate 23 can be realized. After that, the control system drives the transmission shaft 21 to rotate through the driving motor 2, and the tooth profile 214 in the middle of the transmission shaft 21 rotates accordingly. The transmission shaft 21 passes through the middle The tooth shape 214 and the solid magnetorheological fluid drive the spiral cylinder 3 in the middle of the cleaning plate 23 to rotate, and the spiral cylinder 3 drives the cleaning plate 23 to move downward, and the sliding shaft 231 on the outside of the cleaning plate 23 slides downward in the sliding groove 114, and the brush on the outside of the cleaning plate 23 scrubs the inner wall of the tower body 11, so that the cleaning liquid and the brush are used to clean the inner wall of the tower body 11, thereby improving the cleaning effect. The impurities and cleaning liquid generated by the cleaning of the tower body 11 move downward, and the impurities are deposited on the filter screen 27. The cleaning liquid passes through the filter screen 27 and is discharged from the air outlet 113.

[0052] When the sliding shaft 231 on the outside of the cleaning plate 23 moves to the lowermost side of the sliding groove 114, the encoder inside the drive motor 2 feeds back data to the control system, and the control system controls the drive motor 2 to drive the transmission shaft 21 to rotate in the opposite direction. The transmission shaft 21 drives the spiral cylinder 3 in the middle of the cleaning plate 23 to rotate in the opposite direction through the tooth shape 214 in the middle and the magnetorheological fluid. The spiral cylinder 3 drives the cleaning plate 23 to move upward, so that the sliding shaft 231 on the outside of the cleaning plate 23 returns to the uppermost side of the sliding groove 114, and the brush is driven up and down by the cleaning plate 23 to scrub the inner wall of the tower body 11, and the cleaning liquid is sprayed at the same time to enhance the cleaning effect and ensure the cleanliness of the inside of the tower body 11.

[0053] When the sliding shaft 231 on the outside of the cleaning plate 23 moves to the uppermost side of the sliding groove 114, the encoder inside the drive motor 2 feeds back data to the control system, and the control system cuts off the power of the coil B31 in the spiral drum 3 in the middle of the cleaning plate 23. After losing the magnetic field of the coil B31, the magnetorheological fluid changes from solid to liquid, thereby realizing the power cutoff between the transmission shaft 21 and the spiral drum 3 in the middle of the cleaning plate 23; thereafter, the control system connects the coil B31 in the spiral drum 3 in the middle of the sliding plate 26 to the circuit, and the coil B31 generates a magnetic field to change the magnetorheological fluid (the magnetorheological fluid in the spiral drum 3 in the middle of the sliding plate 26) from liquid to solid, and the tooth shape 214 on the lower side of the transmission shaft 21 cooperates with the magnetorheological fluid to drive the spiral drum 3 to rotate, and the spiral drum 3 drives the sliding plate 26 to move upward, and the sliding plate 26 slides on the guide shaft 261 while pulling the inner side of the filter 27 upward, so that the longitudinal section of the filter 27 changes from the original funnel shape to a cone shape, so as to facilitate the subsequent cleaning of the filter 27.

[0054] When the sliding plate 26 moves to the uppermost side of the guide shaft 261, the encoder in the driving motor 2 feeds back data to the control system, and the control system controls the solenoid valve in the discharge hole 116 to open, and the catalyst delivery system and the feed port 112 cooperate to pressurize the external air and deliver it to the tower body 11, and the inner wall of the tower body 11 and the filter screen 27 are flushed by the airflow. Since the longitudinal section of the filter screen 27 is conical, impurities enter the discharge hole 116 along the surface of the filter screen 27, and the impurities enter the discharge box 117 through the discharge hole 116 for collection and treatment, and the airflow passes through the filter screen 27 and is discharged from the air outlet 113 to achieve self-cleaning of the tower body 11 and the filter screen 27.

[0055] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A flue gas desulfurization and denitrification treatment device with self-cleaning function, comprising a flue gas delivery system, a catalyst delivery system and a control system, characterized in that: The tower body (11) comprises a tower body (11), wherein an air inlet (111) and a feed inlet (112) are arranged at the upper end of the tower body (11), and an air outlet (113) is arranged at the lower end of the tower body (11), wherein the air inlet (111) is connected to a flue gas delivery system via a pipeline, and the feed inlet (112) is connected to a catalyst delivery system via a pipeline, and the feed inlet (112) is connected to external air via another set of pipelines; A driving motor (2) is mounted on the upper end of the tower body (11); an output shaft of the driving motor (2) is connected to a transmission shaft (21); a fan blade (22) is mounted on the transmission shaft (21); a mixing plate (24) is mounted below the fan blade (22); a cleaning plate (23) is mounted below the mixing plate (24); a cleaning liquid is disposed inside the cleaning plate (23); a fixing plate (25) is mounted below the cleaning plate (23); and a A sliding plate (26) is installed, a filter screen (27) is connected between the fixed plate (25) and the sliding plate (26), and vibration plates (28) are installed on both sides of the filter screen (27); the catalyst delivery system is used to deliver desulfurization agent and desulfurization agent, the cleaning plate (23) sprays cleaning liquid while cleaning the tower body (11), the vibration plate (28) ensures the filtering effect of the filter screen (27) through vibration, and the mixing plate (24) mixes the desulfurization agent, desulfurization agent and flue gas.

2. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 1, characterized in that: The two ends of the transmission shaft (21) are rotatably mounted in the tower body (11) via bearings, a plurality of cross bars (212) are arranged at the upper end of the transmission shaft (21), and teeth (214) are arranged at the middle and lower side of the transmission shaft (21); A plurality of the cross bars (212) are arranged along the circumference of the transmission shaft (21); a spiral groove (213) is provided on the cross bar (212); the spiral groove (213) is made of a spiral; the mixing plate (24) is made of a spiral twist; a through hole is provided inside the mixing plate (24); the cross bar (212) passes through the through hole; a plurality of vertical shafts (241) are provided on the inner wall of the mixing plate (24) near the through hole; the plurality of vertical shafts (241) are respectively inserted into the spiral grooves (213); and the plurality of vertical shafts (241) slide in the spiral grooves (213).

3. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 2 is characterized in that: A follower plate (242) is rotatably mounted on one end of the mixing plate (24) close to the transmission shaft (21) via a bearing, a first spring (243) is connected between the follower plate (242) and the cross bar (212), the first spring (243) is sleeved on the cross bar (212), and both ends of the first spring (243) are electrically connected to a control system.

4. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 3 is characterized in that: The cleaning plate (23) is formed by connecting two groups of inner and outer disc plates. A dust collecting plate (211) is arranged on the upper side of the outer disc plate. The longitudinal section of the dust collecting plate (211) is "V"-shaped. The dust collecting plate (211) is in sliding contact with the inner wall of the tower body (11). Multiple groups of sliding shafts (231) and brushes are arranged on the outer side of the cleaning plate (23). The brushes are located between two adjacent groups of sliding shafts (231) and are in contact with the inner wall of the tower body (11). Multiple groups of sliding grooves (114) are arranged on the inner wall of the tower body (11) outside the cleaning plate (23). The multiple groups of sliding shafts (231) are respectively inserted into the sliding grooves (114). The upper side of the cleaning plate (23) is provided with an annular chamber (232), and the annular chamber (232) is provided with a heat-conducting medium, an expansion membrane (234) and a cleaning liquid in sequence from the outside to the inside, and the expansion membrane (234) separates the heat-conducting medium and the cleaning liquid. The lower side of the cleaning plate (23) close to the cleaning liquid is provided with a spraying port (233), and the spraying port (233) is connected with the cleaning liquid and faces the inner wall of the tower body (11).

5. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 4 is characterized in that: A plurality of groups of metal blocks (235) are arranged on the cleaning plate (23) in contact with the heat-conducting medium. The plurality of groups of metal blocks (235) are located in the annular chamber (232). The heat-conducting medium is made of a material that expands when heated. The expansion membrane (234) is made of a flexible material. A coil A (115) is embedded in the tower body (11) outside the cleaning plate (23). Both ends of the coil A (115) are electrically connected to a control system. The metal blocks (235) are in the magnetic field of the coil A (115).

6. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 5, characterized in that: The fixed plate (25) is arranged on the inner wall of the tower body (11); the tower body (11) on the upper side of the fixed plate (25) is provided with a plurality of discharge holes (116); a discharge box (117) is arranged on the outer side of the tower body (11) opposite to the discharge holes (116); an exhaust valve is installed on the discharge box (117); a solenoid valve is installed in the discharge hole (116); and both the solenoid valve and the exhaust valve are electrically connected to a control system.

7. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 6, characterized in that: A plurality of temperature difference plates A (29) are arranged on the inner wall of the tower body (11) outside the fan blade (22) and on the fan blade (22), and a plurality of temperature difference plates B (291) are arranged on the inner wall of the bottom of the tower body (11), and the plurality of temperature difference plates A (29) and the plurality of temperature difference plates B (291) correspond to each other one by one; The temperature difference plate A (29) and the temperature difference plate B (291) are both provided with semiconductors of two different materials and a metal plate, one end of the semiconductors of the two different materials are connected to the metal plate, and the two semiconductors on the temperature difference plate A (29) and the two semiconductors on the temperature difference plate B (291) are connected by wires, one of which is connected to a control system.

8. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 7, characterized in that: A power transmission assembly is installed between the middle of the cleaning plate (23) and the middle of the sliding plate (26) and the transmission shaft (21), and multiple groups of guide shafts (261) are arranged on the outer side of the transmission shaft (21) above and below the sliding plate (26), and the sliding plate (26) slides on the guide shafts (261); The power transmission component comprises a spiral barrel (3), a coil B (31) and a magnetorheological fluid. The interior of the spiral barrel (3) is hollow, and the exterior of the spiral barrel (3) is made of a magnetic shielding material to prevent the magnetic field of the coil A (115) from interfering with the interior. The inner wall of the spiral barrel (3) is provided with a tooth shape (214) identical to the middle and lower sides of the transmission shaft (21). The upper and lower sides of the spiral barrel (3) are rotatably mounted on the transmission shaft (21) via bearings. The magnetorheological fluid is arranged in the spiral barrel (3), and the coil B (31) is buried in the spiral barrel (3). The coil B (31) is electrically connected to a control system, and the magnetorheological fluid is in the magnetic field of the coil B (31).

9. The flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 8, characterized in that: The middle part of the cleaning plate (23) is threadedly connected to the outer side of one group of spiral barrels (3), and the spiral barrel (3) in the middle part of the cleaning plate (23) is located in the middle part of the transmission shaft (21). The middle part of the sliding plate (26) is threadedly connected to the outer side of another group of spiral barrels (3), and the spiral barrel (3) in the middle part of the sliding plate (26) is located at the lower side of the transmission shaft (21).

10. A flue gas desulfurization and denitrification treatment device with self-cleaning function according to claim 9, characterized in that: A receiving plate (281) is installed on one side of the vibration plate (28), the receiving plate (281) is arranged on the inner wall of the tower body (11), the vibration plate (28) slides on the receiving plate (281) and contacts the filter screen (27), a second spring (282) is connected between the vibration plate (28) and the receiving plate (281), both ends of the second spring (282) are electrically connected to the control system, a filling port (118) is arranged on the tower body (11) near the cleaning plate (23), the filling port (118) passes through the tower body (11) and the cleaning plate (23) and is connected to the cleaning liquid through a bellows; the driving motor (2) is equipped with a pressure sensor and an encoder, a control panel (1) is arranged on the tower body (11), and the control system is arranged in the control panel (1).

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