Rapid integrated demercuration device in coal-fired boiler

Abstract

The invention relates to the technical field of chemical demercuration equipment, and particularly discloses a coal-fired boiler in-furnace rapid integrated demercuration device which comprises a discharge flue, smoke suction parts are arranged on the discharge flue, fan blades are arranged in the smoke suction parts, a filter part is arranged on the discharge flue, a filter plate is arranged in the filter part, and the filter plate is arranged in the filter part. A cooling box communicated with the smoke exhaust channel is fixedly installed at the end, away from the smoke suction part, of the smoke exhaust channel, a liquid drainage pipe is arranged at the bottom of the cooling box, a water pump is arranged on the liquid drainage pipe, an exhaust pipe is arranged on the side edge of the top of the cooling box, and an air pump is arranged on the exhaust pipe. According to the device, the mercury gas discharged from the coal-fired boiler can be quickly and efficiently converted into a liquid state and recycled, so that the emission of the mercury gas is effectively reduced, the pollution threat to the environment is reduced, the mercury resource can be recycled, and a positive contribution is made to the sustainable development of the resource.

Description

Technical Field

[0001] The invention belongs to the technical field of mercury removal equipment, and in particular relates to a rapid integrated mercury removal device in a coal-fired boiler furnace. Background Art

[0002] The in-furnace mercury removal device for coal-fired boilers is an integrated treatment equipment developed to solve the mercury emission problem of coal-fired boilers. It operates inside the coal-fired boiler and can achieve rapid and efficient mercury removal. This device integrates a variety of advanced mercury removal methods, including but not limited to chemical adsorption, catalytic oxidation, etc. For example, through special adsorbents, the mercury element produced during the combustion process is quickly adsorbed, or a catalyst is used to induce a chemical reaction in mercury to convert it into a material form that is easy to capture and treat.

[0003] The existing mercury removal device directly passes the exhaust gas into the equipment, which can easily cause local saturation of the activated carbon filter in the mercury removal equipment, resulting in a decrease in the quality of subsequent mercury removal. At the same time, the equipment using a single activated carbon adsorption does not completely remove the mercury, and the mercury content in the gas after mercury removal is relatively high.

[0004] The existing patent (application number: CN201811412488.3) is a ring-spray type mercury removal device for coal-fired boilers. When in use, Hg0 in the exhaust gas is oxidized into Hg2+ in the activated carbon adsorption layer and the photocatalyst layer under light. The combination of the two can make the mercury removal more complete. At the same time, the combined use of the rotating shaft and the gas nozzle can prevent the local activated carbon from being saturated too quickly and losing its adsorption capacity, saving operating costs.

[0005] In view of the above problems, existing patents have provided solutions. However, in the actual demercuration process, the above-mentioned devices are difficult to quickly and effectively treat the mercury gas discharged from the coal-fired boiler furnace, resulting in a large amount of mercury gas being discharged into the environment without being fully absorbed, which seriously threatens the ecological balance and human health. At the same time, the existing devices have limited ability to recover mercury gas, which makes it impossible to fully utilize precious mercury resources, resulting in a huge waste of resources. Improvements are needed. For this purpose, a rapid integrated demercuration device for coal-fired boiler furnace is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a coal-fired boiler furnace rapid integrated mercury removal device that can quickly and efficiently convert mercury gas discharged from the furnace of a coal-fired boiler into a liquid form and recycle it, which not only effectively reduces the emission of mercury gas and alleviates the pollution threat to the environment, but also can recycle mercury resources and make positive contributions to the sustainable development of resources.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a coal-fired boiler furnace rapid integrated mercury removal device, including a smoke exhaust duct, a smoke suction section is respectively provided on the smoke exhaust duct, a fan blade is provided in the smoke suction section, a filter section is provided on the smoke exhaust duct, a filter plate is provided in the filter section, a cooling box connected to the smoke suction section is fixedly installed at one end of the smoke exhaust duct away from the smoke suction section, a drain pipe is provided at the bottom of the cooling box, a water pump is provided on the drain pipe, an exhaust pipe is provided on the top side of the cooling box, an air pump is provided on the exhaust pipe, a vertical rod one is rotatably provided in the middle of the cooling box, and stirring rods that are evenly distributed and symmetrical are fixedly installed on the vertical rod one, and a driving mechanism for driving the stirring rod, the fan blades and the filter plate to rotate simultaneously is provided on the smoke exhaust duct and the cooling box.

[0008] As a further description of the above scheme: by arranging a smoke exhaust duct, a smoking part, fan blades, a filter part, a filter plate, a cooling box, a drain pipe, a water pump, an exhaust pipe, an air pump, a vertical rod, a stirring rod, and the cooperation between the driving mechanism, the mercury gas discharged from the coal-fired boiler furnace can be quickly and efficiently converted into liquid form and recovered, which not only effectively reduces the emission of mercury gas and alleviates the pollution threat to the environment, but also can recycle and utilize mercury resources, making a positive contribution to the sustainable development of resources.

[0009] Preferably, the driving mechanism includes a motor fixedly installed above the cooling box, a driving wheel fixedly installed on the top of a vertical rod, a vertical rod 2 rotatably installed on the smoke exhaust duct, a driven wheel fixedly installed on the top of the vertical rod 2, a belt sleeved on the driving wheel and the driven wheel, an installation box fixedly installed in the smoke exhaust duct, a bevel gear 1 rotatably installed in the installation box, a bevel gear 2 rotatably installed in the installation box, and horizontal rods rotatably installed on both sides of the installation box.

[0010] As a further description of the above scheme: the elements within the drive mechanism are described.

[0011] Preferably, the end of the motor output shaft is fixedly installed on the middle part of the driving wheel, the belt is respectively connected to the driving wheel and the driven wheel, the vertical rod two is rotatably set on the installation box, and the bottom end of the vertical rod two is fixedly installed on the middle part of the bevel gear one, the bevel gear one is respectively meshingly connected with the two groups of bevel gear twos, the ends of the two groups of cross bars are respectively fixedly installed on the middle parts of the two groups of bevel gear twos, and the ends of the two groups of cross bars away from the installation box are respectively fixedly installed on the fan blades and the middle part of the filter plate.

[0012] As a further description of the above scheme: the positional relationship of the elements within the drive mechanism is described.

[0013] Preferably, a movable ring 1 is slidably provided on the outer wall of the filter portion, and evenly distributed magnetic blocks are fixedly installed on the movable ring 1. A movable ring 2 is slidably provided in the filter portion, and the movable ring 2 is made of magnetic metal. A horizontal bar is fixedly installed on the movable ring 2, and the horizontal bar is slidably provided on the horizontal bar. Bristles are provided on one side of the horizontal bar close to the filter plate. Symmetrical electric push rods are fixedly installed on both sides of the filter portion, and the ends of the output shafts of the electric push rods are respectively fixedly installed on the sides of the magnetic blocks on both sides.

[0014] As a further description of the above scheme: by setting the cooperation between movable ring one, magnetic block, movable ring two, horizontal bars, bristles, and electric push rod, the bristles can be driven to move horizontally to fit the filtering surface of the filter plate, so that the dust and impurities on the surface of the filter plate can be automatically cleaned during the rotation of the filter plate. Conversely, when the filter plate does not need to be cleaned, the bristles can be driven away from the filter plate, which can protect the bristles and increase their service life. In addition, the rotating filtering filter plate can effectively reduce the accumulation of dust and impurities and improve the filtering stability.

[0015] Preferably, an ash outlet is provided at the bottom of the filter portion, a collection box is provided at the bottom of the filter portion at the ash outlet, and a bottom cover is provided at the bottom of the collection box.

[0016] As a further description of the above scheme: by setting the ash outlet, the collection box, and the cooperation between the bottom cover, it is convenient to collect and clean the impurities filtered by the filter plate.

[0017] Preferably, a sealing plate is slidably provided in the middle of the collection box, the sealing plate passes through the collection box, and the size of the sealing plate is adapted to the size of the collection box, a connecting rod is fixedly installed on one side of the sealing plate close to the magnetic block, and the end of the connecting rod is fixedly installed on the side of the magnetic block.

[0018] As a further description of the above scheme: in the process of driving the bristles to fit the filter plate for cleaning, the sealing plate can be automatically pushed to open the collection box. As the impurities filtered by the filter plate accumulate on the sealing plate, they automatically fall into the bottom of the collection box during the sliding of the sealing plate. The impurities in the process of cleaning the filter plate by the bristles also fall into the bottom of the box. After the cleaning is completed, as the bristles move away from the filter plate, the sealing plate follows the movement to automatically seal the collection box. The bottom cover of the collection box can be opened to clean the impurities collected in the collection box.

[0019] Preferably, movable channels are provided at the ends of the stirring rods, movable rods are slidably arranged in the movable channels, and springs are arranged in the movable channels, both ends of the springs are respectively fixedly installed on the stirring rods and the movable rods, and symmetrical scrapers are arranged on the inner wall of the cooling box, and the ends of the movable rods are respectively fixedly installed on the sides of the stirring rods.

[0020] As a further description of the above scheme: by setting the coordination between the stirring rod, the movable channel, the movable rod, the spring, and the scraper, the mercury adhering to the inner wall of the cooling box can be scraped off when the motor increases the rotation power, further facilitating the recovery of mercury liquid.

[0021] Preferably, a curved pad is fixedly mounted on one side of the scraper close to the cooling box, and the curved pad is made of rubber material.

[0022] As a further description of the above scheme: when the scraper is scraping the inner wall of the cooling box, the arc-shaped pad first contacts the inner wall. Since the arc-shaped pad is made of rubber, it has certain elasticity and flexibility, and can better fit the inner wall, reducing damage to the inner wall and improving the scraping effect.

[0023] Preferably, a controller is provided on the outer wall of the cooling box, and the controller is electrically connected to the water pump, the air pump, and the motor respectively.

[0024] As a further description of the above scheme: a controller is set to control the working status of the water pump, the air pump and the motor. By setting corresponding parameters and instructions, the controller can start or stop the water pump, the air pump and the motor, and adjust their working power and operating time to achieve efficient and stable operation of the entire mercury removal device.

[0025] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention can quickly and efficiently convert mercury gas discharged from the coal-fired boiler into liquid form and recycle it by arranging the smoke exhaust duct, the smoking part, the fan blades, the filter part, the filter plate, the cooling box, the drain pipe, the water pump, the exhaust pipe, the air pump, the vertical rod, the stirring rod, and the cooperation between the driving mechanism, which not only effectively reduces the emission of mercury gas and alleviates the pollution threat to the environment, but also can recycle mercury resources, making a positive contribution to the sustainable development of resources.

[0027] 2. In the present invention, by setting the cooperation between movable ring 1, magnetic block, movable ring 2, horizontal bar, bristles, and electric push rod, the bristles can be driven to move horizontally to fit the filtering surface of the filter plate, and then the dust and impurities on the surface of the filter plate can be automatically cleaned during the rotation of the filter plate. Conversely, when the filter plate does not need to be cleaned, the bristles can be driven away from the filter plate, which can protect the bristles and increase their service life. In addition, the rotating filtering filter plate can effectively reduce the accumulation of dust and impurities and improve the filtering stability.

[0028] 3. In the present invention, by setting the ash outlet, the collection box, the bottom cover, the sealing plate, and the cooperation between the connecting rods, the sealing plate can be automatically pushed to open the collection box during the process of driving the bristles to fit the filter plate for cleaning. As the impurities filtered by the filter plate accumulate on the sealing plate, they automatically fall into the bottom of the collection box during the sliding of the sealing plate. The impurities in the process of cleaning the filter plate by the bristles also fall into the bottom of the box. After cleaning, as the bristles move away from the filter plate, the sealing plate follows the movement to automatically seal the collection box. The bottom cover of the collection box can be opened to clean the impurities collected in the collection box.

[0029] 4. In the present invention, by arranging the stirring rod, the movable channel, the movable rod, the spring, and the cooperation between the scraper, the mercury adhering to the inner wall of the cooling box can be scraped off when the motor increases the rotation power, further facilitating the recovery of mercury liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 It is a side structural diagram of the present invention;

[0032] Figure 3 It is a side plan view of the structure of the present invention;

[0033] Figure 4 It is a three-dimensional structural diagram of the filter part of the present invention;

[0034] Figure 5 It is a side plan view of the filter unit of the present invention;

[0035] Figure 6 The structure diagram of the vertical rod 1, the stirring rod, the scraper, the vertical rod 2, the mounting box, the fan blades, and the filter plate of the present invention;

[0036] Figure 7 It is a side cross-sectional structural diagram of the installation box of the present invention;

[0037] Figure 8 It is a side cross-sectional structural diagram of the stirring rod of the present invention.

[0038] Legend:

[0039] 1. Smoke exhaust duct; 2. Smoking section; 3. Fan blades; 4. Filter section; 5. Filter plate; 6. Cooling box; 7. Drain pipe; 8. Water pump; 9. Exhaust pipe; 10. Air pump; 11. Vertical rod one; 12. Stirring rod; 13. Driving mechanism; 131. Motor; 132. Driving wheel; 133. Vertical rod two; 134. Driven wheel; 135. Belt; 136. Mounting box; 137. Bevel gear one; 138. Bevel gear two; 139. Cross bar; 14. Movable ring one; 15. Magnetic block; 16. Movable ring two; 17. Cross bar; 18. Electric push rod; 19. Ash drop port; 20. Collecting box; 21. Bottom cover; 22. Sealing plate; 23. Connecting rod; 24. Movable channel; 25. Movable rod; 26. Spring; 27. Scraper. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-8 , the present invention provides a technical solution:

[0042] A coal-fired boiler furnace rapid integrated mercury removal device, comprising a flue duct 1, a smoke extraction section 2 is provided on the flue duct 1, a fan blade 3 is provided in the smoke extraction section 2, a filter section 4 is provided on the flue duct 1, a filter plate 5 is provided in the filter section 4, a cooling box 6 connected to the flue duct 1 is fixedly installed at one end away from the smoke extraction section 2, a drain pipe 7 is provided at the bottom of the cooling box 6, a water pump 8 is provided on the drain pipe 7, an exhaust pipe 9 is provided on the top side of the cooling box 6, and the exhaust pipe 9 is provided on the top side of the cooling box 6. 9 is provided with an air pump 10, a vertical rod 11 is rotatably provided in the middle of the cooling box 6, and a stirring rod 12 which is evenly distributed and symmetrical is fixedly installed on the vertical rod 11, and a driving mechanism 13 for driving the stirring rod 12, the fan blade 3 and the filter plate 5 to rotate simultaneously is provided on the smoke exhaust duct 1 and the cooling box 6, and the driving mechanism 13 includes a motor 131 fixedly installed above the cooling box 6, a driving wheel 132 fixedly installed at the top of the vertical rod 11, a vertical rod 133 rotatably provided on the smoke exhaust duct 1, A driven wheel 134 fixedly mounted on the top of the second vertical rod 133, a belt 135 sleeved on the driving wheel 132 and the driven wheel 134, a mounting box 136 fixedly mounted in the smoke exhaust duct 1, a bevel gear 137 rotatably mounted in the mounting box 136, a bevel gear 2 138 rotatably mounted in the mounting box 136, and a horizontal rod 139 symmetrically mounted on both sides of the mounting box 136. The end of the output shaft of the motor 131 is fixedly mounted on the middle of the driving wheel 132, and the belt 135 They are respectively connected to the driving wheel 132 and the driven wheel 134 in transmission connection, the vertical rod 133 is rotatably set on the installation box 136, and the bottom end of the vertical rod 133 is fixedly installed on the middle part of the bevel gear 1 137, the bevel gear 1 137 is respectively meshed and connected to the two groups of bevel gears 138, the ends of the two groups of cross rods 139 are respectively fixedly installed on the middle parts of the two groups of bevel gears 138, and the ends of the two groups of cross rods 139 away from the installation box 136 are respectively fixedly installed on the fan blades 3 and the middle parts of the filter plate 5.

[0043] When the coal-fired boiler is running, the mercury-containing flue gas generated enters the smoking section 2 through the flue duct 1, and the motor 131 on the top of the cooling box 6 is started. The output shaft of the motor 131 rotates to drive the driving wheel 132 to rotate, and then drives the driven wheel 134, the vertical rod 133 and the bevel gear 137 to rotate together through the belt 135, and then drives the vertical rod 133 and the bevel gear 137 to rotate. The bevel gear 137 rotates in the installation box 136 and drives the two groups of bevel gears 138 meshing and connected thereto to rotate at the same time, so that the two groups of cross bars 139 respectively drive the fan blades 3 and the filter plate 5 to rotate. The rotation of the fan blades 3 in the smoking section 2 enhances the suction force of the smoking section 2 and effectively inhales the flue gas. The rotation of the filter plate 5 in the filter section 4 improves the filtering efficiency, reduces the dust and impurities entering the subsequent system, and also avoids the impurities from quickly accumulating on the surface of the filter plate 5. The flue gas enters the cooling box 6 after being filtered.

[0044] During the rotation of the motor 131, the vertical rod 11 and the stirring rod 12 rotate simultaneously. Under the stirring action of the stirring rod 12, the mercury gas fully contacts the cooling medium in the cooling box 6 and is converted into liquid mercury. The liquid mercury is discharged through the drain pipe 7 under the action of the water pump 8, and the treated gas is discharged through the exhaust pipe 9 and the air pump 10 for collection and utilization.

[0045] During the whole process, the motor 131 serves as the core power source and realizes the synchronous movement of multiple components through the transmission mechanism, thereby ensuring the efficient operation of the mercury removal device;

[0046] The rapid integrated mercury removal device in the coal-fired boiler furnace can quickly and efficiently convert the mercury gas discharged from the coal-fired boiler furnace into liquid form and recycle it. It not only effectively reduces the emission of mercury gas and alleviates the pollution threat to the environment, but also can recycle and utilize mercury resources, making a positive contribution to the sustainable development of resources.

[0047] A movable ring 14 is slidably provided on the outer wall of the filter part 4, and evenly distributed magnetic blocks 15 are fixedly installed on the movable ring 14. A movable ring 2 16 is slidably provided in the filter part 4, and the movable ring 2 16 is made of magnetic metal material. A horizontal bar 17 is fixedly installed on the movable ring 2 16, and the horizontal bar 17 is slidably provided on the horizontal bar 139. Bristles are provided on the side of the horizontal bar 17 close to the filter plate 5. Symmetrical electric push rods 18 are fixedly installed on both sides of the filter part 4, and the ends of the output shafts of the electric push rods 18 are respectively fixedly installed on the sides of the magnetic blocks 15 on both sides;

[0048] When the filter plate 5 needs to be cleaned, the electric push rod 18 is started, pushing the magnetic block 15 and the movable ring 1 14 to slide along the outer wall of the filter part 4. Since the magnetic block 15 and the movable ring 2 16 attract each other, the movable ring 2 16 drives the cross bar 17 and the bristles to move horizontally along the cross bar 139 until the bristles are tightly attached to the surface of the filter plate 5. At this time, the filter plate 5 continues to rotate under the drive of the driving mechanism 13, and the bristles automatically clean the surface of the filter plate 5 to remove attached dust and impurities. When the cleaning is completed, the electric push rod 18 moves in the opposite direction, driving the bristles away from the filter plate 5, thereby avoiding unnecessary wear on the filter plate 5 and the bristles, and extending the service life of the filter plate 5 and the bristles.

[0049] An ash outlet 19 is provided at the bottom of the filter part 4, a collection box 20 is provided at the bottom of the filter part 4 at the ash outlet 19, a bottom cover 21 is provided at the bottom of the collection box 20, a sealing plate 22 is slidably provided in the middle of the collection box 20, the sealing plate 22 passes through the collection box 20, and the size of the sealing plate 22 is adapted to the size of the collection box 20, a connecting rod 23 is fixedly installed on the side of the sealing plate 22 close to the magnetic block 15, and the end of the connecting rod 23 is fixedly installed on the side of the magnetic block 15;

[0050] During the cleaning process of the brush bristles against the filter plate 5, the movement of the magnetic block 15 drives the sealing plate 22 to move through the connecting rod 23, and the sealing plate 22 slides to open the collection box 20. As the impurities filtered by the filter plate 5 accumulate on the sealing plate 22, they automatically fall into the bottom of the collection box 20 during the sliding of the sealing plate 22. The impurities in the process of the brush bristles cleaning the filter plate 5 also fall into the bottom of the box. After cleaning, the bristles move away from the filter plate 5, and the sealing plate 22 follows the movement of the magnetic block 15 to automatically seal the collection box 20. When it is necessary to clean the impurities in the collection box 20, just open the bottom cover 21.

[0051] The ends of the stirring rods 12 are provided with movable channels 24, and movable rods 25 are slidably arranged in the movable channels 24, and springs 26 are arranged in the movable channels 24, and the two ends of the springs 26 are respectively fixedly installed with the stirring rods 12 and the movable rods 25, and the inner wall of the cooling box 6 is provided with symmetrical scrapers 27, and the ends of the movable rods 25 are respectively fixedly installed with the sides of the stirring rods 12;

[0052] When the motor 131 rotates normally, the stirring rod 12 stirs the gas in the cooling box 6 to accelerate the cooling and liquefaction of the mercury gas. When the motor 131 increases its rotation power, the centrifugal force generated increases, overcoming the elastic force of the spring 26. The movable rod 25 slides outward in the movable channel 24, driving the scraper 27 to rotate more closely against the inner wall of the cooling box 6, scraping off the mercury liquid adhered to the inner wall, further facilitating the recovery of the mercury liquid. Conversely, the power of the motor 131 is reduced, and the scraper 27 is pulled away from the inner wall of the cooling box 6 by the elastic restoring force of the spring 26. Therefore, when the gas is stirred, the scraper 27 and the cooling box 6 will not be damaged due to long-term friction.

[0053] A curved pad is fixedly mounted on one side of the scraper 27 close to the cooling box 6, and the curved pad is made of rubber material;

[0054] When the scraper 27 is scraping the inner wall of the cooling box 6, the arc-shaped pad first contacts the inner wall. Since the arc-shaped pad is made of rubber, it has certain elasticity and flexibility, and can better fit the inner wall, reducing damage to the inner wall and improving the scraping effect.

[0055] The outer wall of the cooling box 6 is provided with a controller, and the controller is electrically connected to the water pump 8, the air pump 10, and the motor 131 respectively;

[0056] The controller is used to control the working status of the water pump 8, the air pump 10 and the motor 131. By setting corresponding parameters and instructions, the controller can start or stop the water pump 8, the air pump 10 and the motor 131, and adjust their working power and running time to achieve efficient and stable operation of the entire mercury removal device.

[0057] Working principle:

[0058] When the coal-fired boiler is running, the mercury-containing flue gas generated enters the smoking section 2 through the flue duct 1, and the motor 131 on the top of the cooling box 6 is started. The output shaft of the motor 131 rotates to drive the driving wheel 132 to rotate, and then drives the driven wheel 134, the vertical rod 133 and the bevel gear 137 to rotate together through the belt 135, and then drives the vertical rod 133 and the bevel gear 137 to rotate. The bevel gear 137 rotates in the installation box 136 and drives the two groups of bevel gears 138 meshing and connected thereto to rotate at the same time, so that the two groups of cross bars 139 respectively drive the fan blades 3 and the filter plate 5 to rotate. The rotation of the fan blades 3 in the smoking section 2 enhances the suction force of the smoking section 2 and effectively inhales the flue gas. The rotation of the filter plate 5 in the filter section 4 improves the filtering efficiency, reduces the dust and impurities entering the subsequent system, and also avoids the impurities from quickly accumulating on the surface of the filter plate 5. The flue gas enters the cooling box 6 after being filtered.

[0059] During the rotation of the motor 131, the vertical rod 11 and the stirring rod 12 rotate simultaneously. Under the stirring action of the stirring rod 12, the mercury gas fully contacts the cooling medium in the cooling box 6 and is converted into liquid mercury. The liquid mercury is discharged through the drain pipe 7 under the action of the water pump 8, and the treated gas is discharged through the exhaust pipe 9 and the air pump 10 for collection and utilization.

[0060] During the whole process, the motor 131 serves as the core power source and realizes the synchronous movement of multiple components through the transmission mechanism, thereby ensuring the efficient operation of the mercury removal device;

[0061] When the motor 131 rotates normally, the stirring rod 12 stirs the gas in the cooling box 6 to accelerate the cooling and liquefaction of the mercury gas. When the motor 131 increases the rotation power, the centrifugal force generated increases, overcoming the elastic force of the spring 26, and the movable rod 25 slides outward in the movable channel 24, driving the scraper 27 to rotate more closely in contact with the inner wall of the cooling box 6, scraping off the mercury liquid adhering to the inner wall, further facilitating the recovery of the mercury liquid. On the contrary, the power of the motor 131 is reduced, and the scraper 27 is pulled away from the inner wall of the cooling box 6 by the elastic restoring force of the spring 26, so that when the gas is stirred, the scraper 27 and the cooling box 6 will not be damaged due to long-term friction.

[0062] When the scraper 27 is scraping the inner wall of the cooling box 6, the arc-shaped pad first contacts the inner wall. Since the arc-shaped pad is made of rubber, it has certain elasticity and flexibility, and can better fit the inner wall, reduce damage to the inner wall, and improve the scraping effect;

[0063] The controller is used to control the working state of the water pump 8, the air pump 10 and the motor 131. By setting corresponding parameters and instructions, the controller can start or stop the water pump 8, the air pump 10 and the motor 131, and adjust their working power and running time to achieve efficient and stable operation of the entire mercury removal device;

[0064] When the filter plate 5 needs to be cleaned, the electric push rod 18 is started, pushing the magnetic block 15 and the movable ring 1 14 to slide along the outer wall of the filter portion 4. Since the magnetic block 15 and the movable ring 2 16 attract each other, the movable ring 2 16 drives the cross bar 17 and the bristles to move horizontally along the cross bar 139 until the bristles are tightly attached to the surface of the filter plate 5. At this time, the filter plate 5 continues to rotate under the drive of the driving mechanism 13, and the bristles automatically clean the surface of the filter plate 5 to remove attached dust and impurities. When the cleaning is completed, the electric push rod 18 moves in the opposite direction, driving the bristles away from the filter plate 5, avoiding unnecessary wear on the filter plate 5 and the bristles, and extending the service life of the filter plate 5 and the bristles.

[0065] During the cleaning process of the brush bristles against the filter plate 5, the movement of the magnetic block 15 drives the sealing plate 22 to move through the connecting rod 23, and the sealing plate 22 slides to open the collection box 20. Since the impurities filtered by the filter plate 5 are accumulated on the sealing plate 22, they automatically fall into the bottom of the collection box 20 during the sliding process of the sealing plate 22. The impurities in the process of the brush bristles cleaning the filter plate 5 also fall into the bottom of the box. After the cleaning is completed, the brush bristles are away from the filter plate 5, and the sealing plate 22 follows the movement of the magnetic block 15 to automatically seal the collection box 20. When it is necessary to clean the impurities in the collection box 20, the bottom cover 21 can be opened.

[0066] The rapid integrated mercury removal device in the coal-fired boiler furnace can quickly and efficiently convert the mercury gas discharged from the coal-fired boiler furnace into liquid form and recycle it. It not only effectively reduces the emission of mercury gas and alleviates the pollution threat to the environment, but also can recycle and utilize mercury resources, making a positive contribution to the sustainable development of resources.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal-fired boiler furnace rapid integrated mercury removal device, comprising a flue gas duct (1), It is characterized in that The smoke exhaust duct (1) is provided with a smoking section (2), a fan blade (3) is provided in the smoking section (2), a filter section (4) is provided on the smoke exhaust duct (1), a filter plate (5) is provided in the filter section (4), a cooling box (6) connected to the smoking section (2) is fixedly installed at one end of the smoke exhaust duct (1) away from the smoking section (2), a drain pipe (7) is provided at the bottom of the cooling box (6), a water pump (8) is provided on the drain pipe (7), an exhaust pipe (9) is provided on the top side of the cooling box (6), an air pump (10) is provided on the exhaust pipe (9), a vertical rod (11) is rotatably provided in the middle of the cooling box (6), and a stirring rod (12) which is evenly distributed and symmetrical is fixedly installed on the vertical rod (11), and a driving mechanism (13) for driving the stirring rod (12), the fan blade (3) and the filter plate (5) to rotate simultaneously is provided on the smoke exhaust duct (1) and the cooling box (6).

2. A coal-fired boiler furnace rapid integrated mercury removal device according to claim 1, It is characterized in that The driving mechanism (13) comprises a motor (131) fixedly mounted above the cooling box (6), a driving wheel (132) fixedly mounted on the top of the vertical rod 1 (11), a vertical rod 2 (133) rotatably mounted on the smoke exhaust duct (1), a driven wheel (134) fixedly mounted on the top of the vertical rod 2 (133), a belt (135) sleeved on the driving wheel (132) and the driven wheel (134), a mounting box (136) fixedly mounted in the smoke exhaust duct (1), a bevel gear 1 (137) rotatably mounted in the mounting box (136), a bevel gear 2 (138) rotatably mounted in the mounting box (136), and a horizontal rod (139) rotatably mounted on both sides of the mounting box (136).

3. A coal-fired boiler furnace rapid integrated mercury removal device according to claim 2, It is characterized in that The end of the output shaft of the motor (131) is fixedly mounted on the middle of the driving wheel (132), the belt (135) is respectively connected to the driving wheel (132) and the driven wheel (134) in transmission, the second vertical rod (133) is rotatably mounted on the mounting box (136), and the bottom end of the second vertical rod (133) is fixedly mounted on the middle of the first bevel gear (137), the first bevel gear (137) is respectively meshed and connected to the two groups of second bevel gears (138), the ends of the two groups of cross rods (139) are respectively fixedly mounted on the middle of the two groups of second bevel gears (138), and the ends of the two groups of cross rods (139) away from the mounting box (136) are respectively fixedly mounted on the fan blades (3) and the middle of the filter plate (5).

4. The coal-fired boiler furnace rapid integrated mercury removal device according to claim 1, It is characterized in that A movable ring 1 (14) is slidably provided on the outer wall of the filter portion (4), and evenly distributed magnetic blocks (15) are fixedly installed on the movable ring 1 (14). A movable ring 2 (16) is slidably provided inside the filter portion (4), and the movable ring 2 (16) is made of a magnetic metal material. A horizontal bar (17) is fixedly installed on the movable ring 2 (16), and the horizontal bar (17) is slidably provided on a horizontal bar (139). Bristles are provided on one side of the horizontal bar (17) close to the filter plate (5). Symmetrical electric push rods (18) are fixedly installed on both sides of the filter portion (4), and the output shaft ends of the electric push rods (18) are respectively fixedly installed on the sides of the magnetic blocks (15) on both sides.

5. A coal-fired boiler furnace rapid integrated mercury removal device according to claim 4, It is characterized in that The bottom of the filter portion (4) is provided with an ash drop opening (19), the bottom of the filter portion (4) is provided with a collection box (20) located at the ash drop opening (19), and the bottom of the collection box (20) is provided with a bottom cover (21).

6. A coal-fired boiler furnace rapid integrated mercury removal device according to claim 5, It is characterized in that A sealing plate (22) is slidably provided in the middle of the collection box (20), the sealing plate (22) passes through the collection box (20), and the size of the sealing plate (22) is adapted to the size of the collection box (20), a connecting rod (23) is fixedly installed on the side of the sealing plate (22) close to the magnetic block (15), and the end of the connecting rod (23) is fixedly installed on the side of the magnetic block (15).

7. The coal-fired boiler furnace rapid integrated mercury removal device according to claim 1, It is characterized in that The ends of the stirring rods (12) are provided with movable channels (24), movable rods (25) are slidably arranged in the movable channels (24), and springs (26) are arranged in the movable channels (24), and the two ends of the springs (26) are respectively fixedly mounted on the stirring rods (12) and the movable rods (25), and the inner wall of the cooling box (6) is provided with symmetrical scrapers (27), and the ends of the movable rods (25) are respectively fixedly mounted on the sides of the stirring rods (12).

8. A coal-fired boiler furnace rapid integrated mercury removal device according to claim 7, It is characterized in that An arc-shaped pad is fixedly mounted on one side of the scraper (27) close to the cooling box (6), and the arc-shaped pad is made of rubber material.

9. The coal-fired boiler furnace rapid integrated mercury removal device according to claim 1, It is characterized in that The outer wall of the cooling box (6) is provided with a controller, and the controller is electrically connected to the water pump (8), the air pump (10), and the motor (131) respectively.

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