Flue gas desulfurization and denitrification adsorption tower

Abstract

The invention relates to the technical field of adsorption towers, and discloses a flue gas desulfurization and denitrification adsorption tower which comprises a desulfurization and denitrification adsorption tower body, a dust removal device, a cooling device, an airflow dispersion device and the like, the dust removal device is used for removing dust from flue gas, the cooling device is used for cooling the flue gas, and the airflow dispersion device is used for shunting the flue gas. By arranging the first cylinder body, the second cylinder body, the spray pipe, the convex block, the hammer head and other structures, water mist is intermittently sprayed to flue gas through a plurality of atomizing nozzles on the side part of the spray pipe, so that the temperature of the flue gas is reduced, the humidity of the flue gas is also improved, and the flue gas temperature is prevented from being too high to influence the subsequent desulfurization and denitrification effect of an adsorbent; and the water mist can enable dust particles in the flue gas to be adsorbed to the surfaces of water drops, so that larger particle groups are formed, and the particle groups are more easily captured and removed by the filter layer. And in the moving process of the convex block, the hammer head is driven to impact the filtering layer through the annular air bag, the second cylinder body and other structures, so that the filtering layer vibrates, and the filtering layer is prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of adsorption towers, in particular to a flue gas desulfurization and denitrification adsorption tower. Background Art

[0002] In the working process of the flue gas desulfurization and denitrification adsorption tower, the pretreatment link is to ensure that the flue gas has suitable conditions before entering the adsorption tower to ensure the efficiency and stability of the subsequent desulfurization, denitrification and adsorption processes. The purpose of pretreatment is mainly to remove large particles in the flue gas, adjust the airflow, control the temperature and humidity, etc., to ensure that the composition and state of the flue gas meet the reaction requirements of the adsorption tower. Pretreatment technology is an important part of the entire flue gas treatment system, and plays a vital role in improving the efficiency of desulfurization and denitrification and reducing equipment failure rate and energy consumption.

[0003] In the pretreatment process of the flue gas desulfurization and denitrification adsorption tower, the flue gas is usually filtered, and the temperature of the flue gas will also affect the subsequent work. Too high a flue gas temperature will cause the catalyst in the adsorption tower to fail, reduce the adsorption capacity of the adsorbent, and accelerate the corrosion and wear of the equipment, affecting the denitrification and desulfurization effect. Therefore, a flue gas desulfurization and denitrification adsorption tower is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem of how to reduce the temperature of flue gas before it enters the desulfurization and denitrification adsorption tower body to prevent the flue gas temperature from being too high and affecting the desulfurization and denitrification effect of the adsorbent, and provides a flue gas desulfurization and denitrification adsorption tower.

[0005] The technical solution adopted by the present invention to solve the technical problem is: A flue gas desulfurization and denitration adsorption tower comprises a desulfurization and denitration adsorption tower body, a processing box, an air inlet pipe, a dust removal device, a cooling device, and an air flow dispersion device.

[0006] The desulfurization and denitrification adsorption tower body is arranged on the ground.

[0007] The processing box is arranged on the side of the desulfurization and denitration adsorption tower body, the processing box is fixedly connected to the desulfurization and denitration adsorption tower body, and is communicated with the air inlet of the desulfurization and denitration adsorption tower body.

[0008] The air inlet pipe is transversely arranged on the side of the treatment box away from the desulfurization and denitrification adsorption tower body. The air inlet pipe is fixedly connected to the treatment box, and one end of the air inlet pipe is connected to the treatment box, and the other end is connected to the outside.

[0009] The dust removal device is arranged on the processing box and is used for removing dust from the flue gas.

[0010] The cooling device is arranged on the processing box and is used to cool the flue gas.

[0011] The air flow dispersion device is arranged on the processing box and is used for diverting the smoke.

[0012] When treating flue gas, the staff will pass the high-temperature and high-pressure flue gas into the treatment box through the air intake pipe. The dust removal device will filter out the particulate impurities in the flue gas. The cooling device will lower the temperature of the flue gas and increase the humidity of the flue gas to prevent the flue gas temperature from being too high and affecting the desulfurization and denitrification effect of the adsorbent. The airflow dispersion device can prevent the flue gas from entering the desulfurization and denitrification adsorption tower body from a single direction, reducing the problem of uneven distribution of the flue gas after entering the desulfurization and denitrification adsorption tower body.

[0013] Furthermore, the dust removal device includes a filter layer, a first rotating shaft, a guide fan, two cleaning strips, and a plurality of bristles.

[0014] The filter layer is vertically arranged inside the processing box, and is located on the side of the air inlet pipe close to the desulfurization and denitration adsorption tower body. The filter layer is fixedly connected to the inner wall of the processing box.

[0015] The axis of the first rotating shaft coincides with the axis of the air inlet pipe and is arranged inside the processing box. One end of the first rotating shaft is inside the air inlet pipe and the other end transversely penetrates the filter layer. The first rotating shaft is rotatably connected to the filter layer and its rotation axis coincides with its own axis.

[0016] The axis of the guide fan coincides with the axis of the first rotating shaft. The guide fan is located inside the air intake pipe and sleeved on the outside of the first rotating shaft. The guide fan is fixedly connected to the first rotating shaft.

[0017] The two cleaning strips are respectively perpendicular to the first rotating shaft, symmetrically arranged inside the processing box, respectively located on the sides of the filter layer close to the air inlet pipe and on both sides of the first rotating shaft, and the two cleaning strips are respectively fixedly connected to the first rotating shaft.

[0018] A plurality of bristles are transversely arranged inside the treatment box and evenly distributed on the sides of the two cleaning strips close to the filter layer. One end of the plurality of bristles is fixedly connected to the two cleaning strips and the other end is closely attached to the filter layer.

[0019] When the flue gas enters the treatment box through the air intake pipe, the high-temperature and high-pressure flue gas passes through the air intake pipe, the high-temperature and high-pressure flue gas impacts the guide fan, and drives the guide fan to rotate, the guide fan drives the first rotating shaft to rotate, the first rotating shaft drives the rotating disk to rotate, and drives the cleaning strip to rotate. The cleaning strip intermittently drives the protrusion to move upward, driving a number of bristles to rotate, and a number of bristles clean the surface of the filter layer to prevent the filter layer from being blocked.

[0020] Furthermore, it comprises a collecting box, which is arranged at the lower part of the processing box and is directly below a plurality of bristles. The collecting box is fixedly connected to the processing box and communicates with the processing box.

[0021] The particle impurities cleaned by the bristles can fall into the collection box.

[0022] Furthermore, the cooling device includes a first cylinder body, a first piston, a plug rod, a first spring, a bump, a water tank, a first connecting pipe, a nozzle, a plurality of atomizing nozzles, a second connecting pipe, an annular airbag, a second cylinder body, a second piston, a vibration rod, a second spring, a hammer head, and a third connecting pipe.

[0023] The first cylinder body is vertically arranged above the processing box, and the bottom of the first cylinder body is fixedly connected to the top of the processing box.

[0024] The first piston is transversely arranged inside the first cylinder body, and the first piston is vertically slidably connected to the first cylinder body.

[0025] The plug rod is vertically arranged at the lower part of the first cylinder body, above the cleaning strip, and vertically penetrates the top of the processing box. The upper end of the plug rod is fixedly connected to the bottom of the first piston, and the plug rod is vertically slidably connected to the processing box.

[0026] The first spring is vertically arranged inside the first cylinder body, below the first piston, and sleeved on the outside of the plug rod. The upper end of the first spring is fixedly connected to the bottom of the first piston, and the lower end is fixedly connected to the top of the processing box.

[0027] The convex block is arranged inside the processing box and below the plug rod. The convex block is fixedly connected to the lower end of the plug rod, and a strong magnet is arranged inside the convex block.

[0028] The water tank is arranged above the processing tank, and the bottom of the water tank is fixedly connected to the top of the processing tank.

[0029] One end of the first connecting pipe is communicated with the water tank, and the other end is communicated with the upper part of the first cylinder body. A first one-way valve is arranged in the first connecting pipe.

[0030] The nozzle is annular, and its axis coincides with the axis of the first rotating shaft. The nozzle is arranged inside the processing box and sleeved on the outside of the air inlet pipe. The nozzle is fixedly connected to the outside of the air inlet pipe.

[0031] A plurality of atomizing nozzles are arranged inside the processing box and are evenly distributed on the side of the nozzle close to the filter layer. One end of the plurality of atomizing nozzles is respectively connected with the nozzle.

[0032] The second connecting pipe is arranged on the upper part of the processing box, one end of the second connecting pipe is connected with the spray pipe, and the other end passes through the top of the processing box and is connected with the upper part of the first cylinder body. A second one-way valve is arranged in the second connecting pipe.

[0033] The annular airbag is vertically arranged inside the processing box, above the convex block, and sleeved on the outer side of the plug rod. The upper end of the annular airbag is fixedly connected to the top of the processing box, and the lower end is fixedly connected to the convex block.

[0034] The second cylinder body is parallel to the first rotating shaft, and is arranged inside the processing box, on the side of the filter layer away from the air inlet pipe, and the second cylinder body is fixedly connected to the top surface inside the processing box.

[0035] The second piston is vertically arranged inside the second cylinder body, and the second piston is slidably connected with the inner wall of the second cylinder body in a transverse direction, and the sliding direction is parallel to the first rotating shaft.

[0036] The vibration rod is parallel to the first rotating shaft and is arranged inside the processing box, on the side of the second piston close to the filter layer. The vibration rod transversely penetrates the side of the second cylinder body close to the filter layer. One end of the vibration rod is fixedly connected to the second piston, and the vibration rod is transversely slidably connected to the second cylinder body.

[0037] The second spring is located inside the second cylinder body and is sleeved on the outside of the vibration rod. One end of the second spring is fixedly connected to the second piston, and the other end is fixedly connected to the inner wall of the second cylinder body.

[0038] The hammer head is arranged inside the processing box, between the vibration rod and the filter layer, and the hammer head is fixedly connected to the other end of the vibration rod and connected to the filter layer.

[0039] The third connecting pipe is arranged at the upper part of the processing box, one end of the third connecting pipe is communicated with the annular air bag, and the other end is communicated with the side of the second cylinder body away from the filter layer.

[0040] When the temperature of the flue gas needs to be lowered, the cleaning strip drives the block to move upward, the block compresses the annular airbag, stretches the first spring and drives the plug rod upward, the plug rod drives the first piston upward, the first piston pushes the water in the first cylinder through the second connecting pipe and the second one-way valve into the nozzle, and then sprays the water from a plurality of atomizing nozzles to the high-temperature flue gas, thereby lowering the temperature of the flue gas and increasing the humidity of the flue gas, preventing the flue gas temperature from being too high and affecting the subsequent desulfurization and denitrification effects of the adsorbent, and the water mist can adsorb the dust particles in the flue gas to the surface of the water droplets, thereby forming larger particle clusters, which are more easily captured and removed by the filter layer.

[0041] When the protrusion compresses the annular airbag, the gas in the annular airbag enters the second cylinder through the third connecting pipe, the gas squeezes the second piston, the second piston squeezes the second spring and drives the vibration rod to move left, the vibration rod drives the hammer head to move left, the hammer head hits the filter layer, causing the filter layer to vibrate to prevent the filter layer from being blocked.

[0042] When the cleaning strip does not contact the bump, the first spring contracts and resets, driving the first piston to move downward, and the first piston drives the plug rod to move downward, driving the water in the water tank to pass through the first connecting pipe and the first one-way valve and enter the first cylinder body.

[0043] When the first piston drives the plug rod downward, the plug rod drives the protrusion downward, and then the annular airbag and the second spring expand, the second spring drives the second piston to move left, the second piston drives the vibration rod to move left, and the vibration rod drives the hammer head to move left, so that the hammer head can hit the vibration filter layer next time.

[0044] Furthermore, there are strong magnets in the ends of the two cleaning strips that are far away from each other, and they repel the strong magnets in the protrusions respectively.

[0045] This allows the powerful magnets in the cleaning strip to drive the bumps to move.

[0046] Furthermore, the second cylinder body is fixedly connected to the inner top surface of the processing box by welding.

[0047] The second cylinder body is tightly fixed to the inner top surface of the processing box.

[0048] Furthermore, the second connecting pipe is made of a high temperature resistant material.

[0049] Prevent the second connecting pipe from being damaged.

[0050] Furthermore, the air flow dispersion device includes a hollow plate, an annular slide groove, an annular slider, a rotating disk, a plurality of second air cylinders, a plurality of fixed rods, a plurality of cross rods, and a plurality of fans.

[0051] The hollow plate is perpendicular to the first rotating shaft and is arranged inside the processing box, on the side of the second cylinder body away from the intake pipe. The hollow plate is fixedly connected to the inner wall of the processing box, and a circular opening is arranged in the middle of the hollow plate, and the axis of the circular opening coincides with the axis of the first rotating shaft.

[0052] The annular sliding groove is arranged on the inner wall of the circular opening, and the axis of the annular sliding groove coincides with the axis of the first rotating shaft.

[0053] The axis of the annular slider coincides with the axis of the first rotating shaft, the annular slider is located in the annular slide groove, and the annular slider is slidably connected to the annular slide groove.

[0054] The rotating disk is circular, and its axis coincides with the axis of the first rotating shaft. It is located in the circular opening and sleeved on the outside of the first rotating shaft. The rotating disk is fixedly connected to the first rotating shaft and the rotating disk is fixedly connected to the annular slider.

[0055] The axes of the second air cylinders are parallel to the axis of the first rotating shaft and are arranged inside the processing box. The second air cylinders penetrate the rotating disk transversely and are fixedly connected to the rotating disk.

[0056] The plurality of fixing rods are respectively perpendicular to the axes of the plurality of second air cylinders, are arranged inside the processing box, are respectively arranged inside the plurality of second air cylinders, and are respectively fixedly connected to the inner walls of the plurality of second air cylinders.

[0057] The axes of the cross bars coincide with the axes of the corresponding second air ducts, and are arranged inside the processing box and inside the second air ducts respectively, and are respectively located on the sides of the fixed rods away from the filter layer, and the cross bars are fixedly connected to the fixed rods respectively.

[0058] The axes of the fans coincide with the axes of the corresponding cross bars, which are arranged inside the processing box, respectively arranged inside the second air ducts, and respectively sleeved on the outsides of the cross bars. The axes of the fans coincide with the axes of the corresponding cross bars, and the fans are rotatably connected to the cross bars.

[0059] When the flue gas needs to be evenly dispersed, the first rotating shaft drives the rotating disk to rotate, the rotating disk drives several second air tubes to rotate, the second air tubes drive the fixed rod to rotate, the fixed rod drives the cross rod to rotate, and the cross rod drives the fan to rotate, so that the fan can rotate with the rotation of the rotating disk, and the flue gas is filtered through the filter layer and discharged into the desulfurization and denitrification adsorption tower body through several second air tubes. When the flue gas passes through the fan in the second air tube, it will drive the fan to rotate, so that the fan can rotate on its own, and then the self-rotation and turnover of the fan can prevent the flue gas from entering the desulfurization and denitrification adsorption tower body from a single direction, and reduce the problem of uneven distribution of the flue gas after entering the desulfurization and denitrification adsorption tower body.

[0060] Furthermore, a plurality of second air cylinders are evenly distributed on the rotating disk.

[0061] The flue gas can be evenly dispersed into the desulfurization and denitrification adsorption tower body through the second air duct.

[0062] Furthermore, it includes an annular guide plate, the axis of which coincides with the axis of the first rotating shaft, and is arranged inside the processing box, between the second cylinder body and the hollow plate. The annular guide plate is fixedly connected to the inner wall of the processing box, and the diameter of the annular guide plate close to the filter layer is larger than the diameter of the annular guide plate close to the hollow plate.

[0063] The filtered smoke can be gathered to one side of the plurality of second air ducts through the annular guide plate.

[0064] Beneficial effects of the present invention: 1. The present invention sets the first cylinder body, the second cylinder body, the nozzle, the bump, the hammer head and other structures, and sprays water mist to the flue gas intermittently through a plurality of atomizing nozzles on the side of the nozzle, thereby reducing the temperature of the flue gas and increasing the humidity of the flue gas, preventing the flue gas temperature from being too high and affecting the subsequent desulfurization and denitrification effects of the adsorbent, and the water mist can make the dust particles in the flue gas adsorbed on the surface of the water droplets, thereby forming larger particle clusters, which are more easily captured and removed by the filter layer. During the activity of the bump, the hammer head will also be driven to hit the filter layer through the annular airbag, the second cylinder body and other structures, causing the filter layer to vibrate and prevent the filter layer from being blocked.

[0065] 2. The present invention is provided with structures such as a guide fan, a cleaning strip, and a plurality of bristles. The high-temperature and high-pressure flue gas will first impact the guide fan, reduce the impact force of the flue gas, and drive the guide fan to rotate. Then the guide fan can drive the cleaning strip to rotate, so that the bristles can continuously clean the filter layer to prevent the filter layer from being blocked.

[0066] 3. The present invention prevents the flue gas from entering the desulfurization and denitrification adsorption tower body from a single direction by arranging hollow plates, rotating disks, second air ducts, fans and other structures, so that the flue gas can be evenly discharged from a number of second air ducts, reducing the problem of uneven distribution of the flue gas after entering the desulfurization and denitrification adsorption tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 This is a schematic diagram of the front view structure of the flue gas desulfurization and denitrification adsorption tower; Figure 2 This is a schematic diagram of the front cross-sectional structure of the treatment box of the flue gas desulfurization and denitrification adsorption tower; Figure 3 This is a schematic diagram of the front cross-sectional structure of the second air duct of the flue gas desulfurization and denitrification adsorption tower; Figure 4 It is a schematic diagram of the enlarged cross-sectional structure at point A of the flue gas desulfurization and denitrification adsorption tower.

[0068] Explanation of the accompanying drawings: 1. Desulfurization and denitrification adsorption tower body; 2. Treatment box; 3. Inlet pipe; 4. Collection box; 6. Filter layer; 7. First rotating shaft; 8. Guide fan; 9. Cleaning strip; 10. Bristles; 11. First cylinder body; 12. First piston; 13. Plug rod; 14. First spring; 15. Bump; 16. Water tank; 17. First connecting pipe; 18. Nozzle; 19. Atomizing nozzle; 20. Second connecting pipe; 21. Hollow plate; 22. Annular slide groove; 23. Annular slider; 24. Rotating disk; 25. Second air cylinder; 26. Fixed rod; 27. Cross bar; 28. Fan; 29. ​​Annular guide plate; 30. Annular air bag; 31. Second cylinder body; 32. Second piston; 33. Vibrating rod; 34. Second spring; 35. Hammer; 36. Third connecting pipe. DETAILED DESCRIPTION

[0069] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0070] like Figure 1-4 As shown, the technical solution adopted by the present invention to solve its technical problem is: A flue gas desulfurization and denitration adsorption tower comprises a desulfurization and denitration adsorption tower body 1, a processing box 2, an air inlet pipe 3, a dust removal device, a cooling device, and an air flow dispersion device.

[0071] The desulfurization and denitrification adsorption tower body 1 is arranged on the ground.

[0072] The treatment box 2 is arranged on the side of the desulfurization and denitration adsorption tower body 1 , and the treatment box 2 is fixedly connected to the desulfurization and denitration adsorption tower body 1 , and is communicated with the air inlet of the desulfurization and denitration adsorption tower body 1 .

[0073] The air inlet pipe 3 is transversely arranged at the side of the treatment box 2 away from the desulfurization and denitrification adsorption tower body 1, and is fixedly connected to the treatment box 2, and one end of the air inlet pipe 3 is connected to the treatment box 2, and the other end is connected to the outside.

[0074] The dust removal device is arranged on the processing box 2 and is used for removing dust from the flue gas.

[0075] The cooling device is arranged on the processing box 2 to cool the flue gas.

[0076] The air flow dispersion device is arranged on the processing box 2 to divert the flue gas.

[0077] When treating flue gas, the staff will pass the high-temperature and high-pressure flue gas into the treatment box 2 through the air inlet pipe 3, the dust removal device will filter out the particulate impurities in the flue gas, the cooling device will reduce the temperature of the flue gas, increase the humidity of the flue gas, and prevent the flue gas temperature from being too high, which will affect the desulfurization and denitrification effect of the adsorbent. The airflow dispersion device can prevent the flue gas from entering the desulfurization and denitrification adsorption tower body 1 from a single direction, and reduce the problem of uneven distribution of the flue gas after entering the desulfurization and denitrification adsorption tower body 1.

[0078] The dust removal device comprises a filter layer 6, a first rotating shaft 7, a guide fan 8, two cleaning strips 9, and a plurality of brushes 10.

[0079] The filter layer 6 is vertically arranged inside the processing box 2 , and is located on the side of the air inlet pipe 3 close to the desulfurization and denitration adsorption tower body 1 . The filter layer 6 is fixedly connected to the inner wall of the processing box 2 .

[0080] The axis of the first rotating shaft 7 coincides with the axis of the air inlet pipe 3 and is arranged inside the processing box 2. One end of the first rotating shaft 7 is inside the air inlet pipe 3, and the other end transversely penetrates the filter layer 6. The first rotating shaft 7 is rotatably connected to the filter layer 6, and its rotation axis coincides with its own axis.

[0081] The axis of the guide fan 8 coincides with the axis of the first rotating shaft 7 . The guide fan 8 is located inside the air intake pipe 3 , and is sleeved on the outside of the first rotating shaft 7 . The guide fan 8 is fixedly connected to the first rotating shaft 7 .

[0082] The two cleaning strips 9 are respectively perpendicular to the first rotating shaft 7 and symmetrically arranged inside the processing box 2. They are respectively located on the sides of the filter layer 6 close to the air inlet pipe 3 and on both sides of the first rotating shaft 7. The two cleaning strips 9 are respectively fixedly connected to the first rotating shaft 7.

[0083] A plurality of bristles 10 are transversely arranged inside the processing box 2 and evenly distributed on the sides of the two cleaning strips 9 close to the filter layer 6. One ends of the plurality of bristles 10 are fixedly connected to the two cleaning strips 9 and the other ends are closely attached to the filter layer 6.

[0084] When the flue gas enters the treatment box 2 through the air intake pipe 3, the high-temperature and high-pressure flue gas passes through the air intake pipe 3, and the high-temperature and high-pressure flue gas impacts the guide fan 8, and drives the guide fan 8 to rotate. The guide fan 8 drives the first rotating shaft 7 to rotate, and the first rotating shaft 7 drives the rotating disk 24 to rotate, and drives the cleaning strip 9 to rotate. The cleaning strip 9 drives the protrusion 15 to move upward through the repulsive magnetic force, and drives a number of bristles 10 to rotate. The bristles 10 clean the surface of the filter layer 6 to prevent the filter layer 6 from being blocked.

[0085] It includes a collecting box 4, which is arranged at the lower part of the processing box 2 and is directly below the plurality of bristles 10. The collecting box 4 is fixedly connected to the processing box 2, and the collecting box 4 is communicated with the processing box 2.

[0086] The particle impurities cleaned by the bristles 10 can fall into the collection box 4 .

[0087] The cooling device includes a first cylinder body 11, a first piston 12, a plug rod 13, a first spring 14, a bump 15, a water tank 16, a first connecting pipe 17, a nozzle 18, a plurality of atomizing nozzles 19, a second connecting pipe 20, an annular airbag 30, a second cylinder body 31, a second piston 32, a vibrating rod 33, a second spring 34, a hammer head 35, and a third connecting pipe 36.

[0088] The first cylinder body 11 is vertically disposed above the processing box 2 , and the bottom of the first cylinder body 11 is fixedly connected to the top of the processing box 2 .

[0089] The first piston 12 is transversely disposed inside the first cylinder 11 , and the first piston 12 is vertically slidably connected to the first cylinder 11 .

[0090] The plug rod 13 is vertically arranged at the lower part of the first cylinder body 11, above the cleaning bar 9, and vertically penetrates the top of the processing box 2. The upper end of the plug rod 13 is fixedly connected to the bottom of the first piston 12, and the plug rod 13 is vertically slidably connected to the processing box 2.

[0091] The first spring 14 is vertically arranged inside the first cylinder 11 , below the first piston 12 , and sleeved on the outside of the plug rod 13 . The upper end of the first spring 14 is fixedly connected to the bottom of the first piston 12 , and the lower end is fixedly connected to the top of the processing box 2 .

[0092] The protrusion 15 is arranged inside the processing box 2 and below the plug rod 13 . The protrusion 15 is fixedly connected to the lower end of the plug rod 13 , and a strong magnet is arranged inside the protrusion 15 .

[0093] The water tank 16 is disposed above the processing box 2 , and the bottom of the water tank 16 is fixedly connected to the top of the processing box 2 .

[0094] One end of the first connecting pipe 17 is communicated with the water tank 16 , and the other end is communicated with the upper portion of the first cylinder body 11 . A first one-way valve is disposed in the first connecting pipe 17 .

[0095] The nozzle 18 is annular, with its axis coinciding with the axis of the first rotating shaft 7 , and is disposed inside the processing box 2 , sleeved on the outside of the air inlet pipe 3 , and the nozzle 18 is fixedly connected to the outside of the air inlet pipe 3 .

[0096] A plurality of atomizing nozzles 19 are disposed inside the processing box 2 and are evenly distributed on the side of the nozzle 18 close to the filter layer 6 . One end of the plurality of atomizing nozzles 19 is connected to the nozzle 18 , respectively.

[0097] The second connecting pipe 20 is arranged on the upper part of the processing box 2. One end of the second connecting pipe 20 is connected to the nozzle 18, and the other end passes through the top of the processing box 2 and is connected to the upper part of the first cylinder body 11. A second one-way valve is arranged in the second connecting pipe 20.

[0098] The annular airbag 30 is vertically arranged inside the processing box 2 , above the protrusion 15 , and sleeved on the outside of the plug rod 13 . The upper end of the annular airbag 30 is fixedly connected to the top of the processing box 2 , and the lower end is fixedly connected to the protrusion 15 .

[0099] The second cylinder body 31 is parallel to the first rotating shaft 7 , and is disposed inside the processing box 2 , on the side of the filter layer 6 away from the air inlet pipe 3 . The second cylinder body 31 is fixedly connected to the top surface of the processing box 2 .

[0100] The second piston 32 is vertically disposed inside the second cylinder body 31 . The second piston 32 is slidably connected to the inner wall of the second cylinder body 31 in a transverse direction, and the sliding direction is parallel to the first rotating shaft 7 .

[0101] The vibration rod 33 is parallel to the first rotating shaft 7, and is arranged inside the processing box 2, on the side of the second piston 32 close to the filter layer 6. The vibration rod 33 transversely penetrates the side of the second cylinder body 31 close to the filter layer 6. One end of the vibration rod 33 is fixedly connected to the second piston 32, and the vibration rod 33 is transversely slidably connected to the second cylinder body 31.

[0102] The second spring 34 is located inside the second cylinder 31 and sleeved on the outside of the vibration rod 33 . One end of the second spring 34 is fixedly connected to the second piston 32 , and the other end is fixedly connected to the inner wall of the second cylinder 31 .

[0103] The hammer head 35 is disposed inside the processing box 2 , between the vibration rod 33 and the filter layer 6 . The hammer head 35 is fixedly connected to the other end of the vibration rod 33 , and is connected to the filter layer 6 .

[0104] The third connecting pipe 36 is disposed at the upper portion of the processing box 2 , one end of the third connecting pipe 36 is communicated with the annular airbag 30 , and the other end of the third connecting pipe 36 is communicated with the side of the second cylinder 31 away from the filter layer 6 .

[0105] When the temperature of the flue gas needs to be lowered, the cleaning strip 9 drives the protrusion 15 to move upward, the protrusion 15 compresses the annular airbag 30, stretches the first spring 14 and drives the plug rod 13 to move upward, the plug rod 13 drives the first piston 12 to move upward, and the first piston 12 pushes the water in the first cylinder 11 through the second one-way valve and the second connecting pipe 20 into the nozzle 18, and then sprays to the high-temperature flue gas from a plurality of atomizing nozzles 19, thereby lowering the temperature of the flue gas and increasing the humidity of the flue gas, preventing the flue gas temperature from being too high and affecting the subsequent desulfurization and denitrification effects of the adsorbent, and the water mist can make the dust particles in the flue gas adsorbed to the surface of the water droplets, thereby forming larger particle clusters, which are more easily captured and removed by the filter layer 6.

[0106] When the protrusion 15 compresses the annular airbag 30, the gas in the annular airbag 30 enters the second cylinder body 31 through the third connecting pipe 36, the gas squeezes the second piston 32, the second piston 32 squeezes the second spring 34 and drives the vibration rod 33 to move left, the vibration rod 33 drives the hammer head 35 to move left, the hammer head 35 hits the filter layer 6, causing the filter layer 6 to vibrate to prevent the filter layer 6 from being blocked.

[0107] When the cleaning strip 9 is away from the bump 15 , the first spring 14 contracts and resets, driving the first piston 12 to move downward, and the first piston 12 drives the plug rod 13 to move downward, driving the water in the water tank 16 to pass through the first connecting pipe 17 and the first one-way valve and enter the first cylinder body 11 .

[0108] When the first piston 12 drives the plug rod 13 to move downward, the plug rod 13 drives the protrusion 15 to move downward, and then the annular airbag 30 and the second spring 34 are expanded, the second spring 34 drives the second piston 32 to move left, the second piston 32 drives the vibration rod 33 to move left, and the vibration rod 33 drives the hammer head 35 to move left, so that the hammer head 35 can hit the vibration filter layer 6 next time.

[0109] The ends of the two cleaning strips 9 that are far away from each other are both provided with strong magnets, and they repel the strong magnets in the protrusions 15 respectively.

[0110] The powerful magnet in the cleaning strip 9 can drive the projection 15 to move.

[0111] The second cylinder body 31 is fixedly connected to the inner top surface of the processing box 2 by welding.

[0112] The second cylinder body 31 is tightly fixed to the inner top surface of the processing box.

[0113] The second connecting pipe 20 is made of a high temperature resistant material.

[0114] The second connecting pipe 20 is prevented from being damaged.

[0115] The air flow dispersing device includes a hollow plate 21 , an annular slide groove 22 , an annular slide block 23 , a rotating disk 24 , a plurality of second air cylinders 25 , a plurality of fixing rods 26 , a plurality of cross rods 27 , and a plurality of fans 28 .

[0116] The hollow plate 21 is perpendicular to the first rotating shaft 7 and is arranged inside the processing box 2, on the side of the second cylinder body 31 away from the intake pipe 3. The hollow plate 21 is fixedly connected to the inner wall of the processing box 2, and a circular opening is provided in the middle of the hollow plate 21, and the axis of the circular opening coincides with the axis of the first rotating shaft 7.

[0117] The annular sliding groove 22 is arranged on the inner wall of the circular opening, and the axis of the annular sliding groove 22 coincides with the axis of the first rotating shaft 7 .

[0118] The axis of the annular slider 23 coincides with the axis of the first rotating shaft 7 . The annular slider 23 is located in the annular slide groove 22 . The annular slider 23 is slidably connected to the annular slide groove 22 .

[0119] The rotating disk 24 is circular, and its axis coincides with the axis of the first rotating shaft 7 . It is located in the circular opening and sleeved on the outside of the first rotating shaft 7 . The rotating disk 24 is fixedly connected to the first rotating shaft 7 , and the rotating disk 24 is fixedly connected to the annular slider 23 .

[0120] The axes of the second air tubes 25 are parallel to the axis of the first rotating shaft 7 , and are disposed inside the processing box 2 . The second air tubes 25 transversely penetrate the rotating disk 24 , and the second air tubes 25 are fixedly connected to the rotating disk 24 .

[0121] The fixing rods 26 are respectively perpendicular to the axes of the second air tubes 25 , and are disposed inside the processing box 2 and inside the second air tubes 25 . The fixing rods 26 are respectively fixedly connected to the inner walls of the second air tubes 25 .

[0122] The axes of the cross bars 27 coincide with the axes of the corresponding second air ducts 25 , and are arranged inside the processing box 2 , respectively inside the second air ducts 25 , and respectively on the sides of the fixing rods 26 away from the filter layer 6 , and the cross bars 27 are fixedly connected to the fixing rods 26 .

[0123] The axes of the fans 28 coincide with the axes of the corresponding cross bars 27, and are arranged inside the processing box 2, respectively inside the second air ducts 25, and respectively sleeved on the outside of the cross bars 27. The axes of the fans 28 coincide with the axes of the corresponding cross bars 27, and the fans 28 are rotatably connected to the cross bars 27.

[0124] When the flue gas needs to be evenly dispersed, the first rotating shaft 7 drives the rotating disk 24 to rotate, the rotating disk 24 drives several second air tubes 25 to rotate, the second air tubes 25 drive the fixed rod 26 to rotate, the fixed rod 26 drives the cross bar 27 to rotate, and the cross bar 27 drives the fan 28 to rotate, so that the fan 28 can rotate with the rotation of the rotating disk 24, and the flue gas is filtered by the filter layer 6 and discharged into the desulfurization and denitrification adsorption tower body through several second air tubes 25. When the flue gas passes through the fan 28 in the second air tube 25, it will drive the fan 28 to rotate, so that the fan 28 can rotate, and then the self-rotation and turnover of the fan 28 can prevent the flue gas from entering the desulfurization and denitrification adsorption tower body 1 from a single direction, thereby reducing the problem of uneven distribution of the flue gas after entering the desulfurization and denitrification adsorption tower body 1.

[0125] A plurality of second air cylinders 25 are evenly distributed on the rotating disk 24 .

[0126] The flue gas can be evenly dispersed into the desulfurization and denitrification adsorption tower body 1 through the second air duct 25 .

[0127] It includes an annular guide plate 29, the axis of which coincides with the axis of the first rotating shaft 7, and is arranged inside the processing box 2, between the second cylinder body 31 and the hollow plate 21. The annular guide plate 29 is fixedly connected to the inner wall of the processing box 2, and the diameter of the annular guide plate 29 close to the filter layer 6 is larger than the diameter of the annular guide plate 29 close to the hollow plate 21.

[0128] The filtered smoke can be gathered to one side of the plurality of second air tubes 25 through the annular guide plate 29 .

[0129] Working principle: When treating flue gas, the staff will pass the high-temperature and high-pressure flue gas into the air inlet pipe 3, and then the flue gas enters the processing box 2 through the air inlet pipe 3, is filtered by the filter layer 6, and then passes through a number of second air ducts 25, and then enters the desulfurization and denitrification adsorption tower body 1 for desulfurization and denitrification treatment.

[0130] When the high-temperature and high-pressure flue gas passes through the air intake pipe 3, the high-temperature and high-pressure flue gas impacts the guide fan 8 and drives the guide fan 8 to rotate. The guide fan 8 drives the first rotating shaft 7 to rotate. The first rotating shaft 7 drives the rotating disk 24 to rotate, and drives the cleaning strip 9 to rotate. The cleaning strip 9 drives the protrusion 15 to move upward through the repulsive magnetic force, and drives a number of bristles 10 to rotate. The bristles 10 clean the surface of the filter layer 6 to prevent the filter layer 6 from being blocked, and the cleaned dust falls into the collection box 4.

[0131] When the cleaning strip 9 drives the protrusion 15 to move upward, the protrusion 15 compresses the annular airbag 30, stretches the first spring 14 and drives the plug rod 13 to move upward, and the plug rod 13 drives the first piston 12 to move upward. The first piston 12 pushes the water in the first cylinder 11 to pass through the second one-way valve and the second connecting pipe 20 in sequence into the nozzle 18, and then sprays to the high-temperature flue gas from a plurality of atomizing nozzles 19, thereby reducing the temperature of the flue gas and increasing the humidity of the flue gas, preventing the flue gas temperature from being too high and affecting the subsequent desulfurization and denitrification effects of the adsorbent, and the water mist can make the dust particles in the flue gas adsorbed to the surface of the water droplets, thereby forming larger particle clusters, which are more easily captured and removed by the filter layer 6.

[0132] When the protrusion 15 compresses the annular airbag 30, the gas in the annular airbag 30 enters the second cylinder body 31 through the third connecting pipe 36, the gas squeezes the second piston 32, the second piston 32 squeezes the second spring 34 and drives the vibration rod 33 to move left, the vibration rod 33 drives the hammer head 35 to move left, the hammer head 35 hits the filter layer 6, causing the filter layer 6 to vibrate to prevent the filter layer 6 from being blocked.

[0133] When the cleaning strip 9 is away from the bump 15, the first spring 14 contracts and resets, driving the first piston 12 to move downward, and the first piston 12 drives the plug rod 13 to move downward, driving the water in the water tank 16 to pass through the first connecting pipe 17 and the first one-way valve in sequence and enter the first cylinder body 11.

[0134] When the first piston 12 drives the plug rod 13 to move downward, the plug rod 13 drives the protrusion 15 to move downward, and then the annular airbag 30 and the second spring 34 are expanded, the second spring 34 drives the second piston 32 to move left, the second piston 32 drives the vibration rod 33 to move left, and the vibration rod 33 drives the hammer head 35 to move left, so that the hammer head 35 can hit the vibration filter layer 6 next time.

[0135] When the first rotating shaft 7 drives the rotating disk 24 to rotate, the rotating disk 24 drives several second air tubes 25 to rotate, the second air tubes 25 drive the fixed rod 26 to rotate, the fixed rod 26 drives the cross bar 27 to rotate, and the cross bar 27 drives the fan 28 to rotate, so that the fan 28 can rotate with the rotation of the rotating disk 24, and the flue gas is filtered by the filter layer 6 and discharged into the desulfurization and denitrification adsorption tower body through several second air tubes 25. When the flue gas passes through the fan 28 in the second air tube 25, it will drive the fan 28 to rotate, so that the fan 28 can rotate, and then the self-rotation and turnover of the fan 28 can prevent the flue gas from entering the desulfurization and denitrification adsorption tower body 1 from a single direction, and reduce the problem of uneven distribution of the flue gas after entering the desulfurization and denitrification adsorption tower body 1.

[0136] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A flue gas desulfurization and denitrification adsorption tower, characterized in that: It comprises a desulfurization and denitration adsorption tower body (1), a processing box (2), an air intake pipe (3), a dust removal device, a cooling device, and an air flow dispersion device; The desulfurization and denitrification adsorption tower body (1) is arranged on the ground; The treatment box (2) is arranged on the side of the desulfurization and denitration adsorption tower body (1), the treatment box (2) is fixedly connected to the desulfurization and denitration adsorption tower body (1), and is communicated with the air inlet of the desulfurization and denitration adsorption tower body (1); The air inlet pipe (3) is transversely arranged on the side of the treatment box (2) away from the desulfurization and denitration adsorption tower body (1), the air inlet pipe (3) is fixedly connected to the treatment box (2), and one end of the air inlet pipe (3) is connected to the treatment box (2), and the other end is connected to the outside; The dust removal device is arranged on the processing box (2) and is used to remove dust from the flue gas; The cooling device is arranged on the processing box (2) and is used to cool the flue gas; The air flow dispersion device is arranged on the processing box (2) and is used to divert the smoke.

2. A flue gas desulfurization and denitrification adsorption tower according to claim 1, characterized in that The dust removal device comprises a filter layer (6), a first rotating shaft (7), a guide fan (8), two cleaning strips (9), and a plurality of brushes (10); The filter layer (6) is vertically arranged inside the treatment box (2), located on the side of the air inlet pipe (3) close to the desulfurization and denitration adsorption tower body (1), and the filter layer (6) is fixedly connected to the inner wall of the treatment box (2); The axis of the first rotating shaft (7) coincides with the axis of the air inlet pipe (3), and the first rotating shaft (7) is arranged inside the processing box (2); one end of the first rotating shaft (7) is located inside the air inlet pipe (3), and the other end transversely penetrates the filter layer (6); the first rotating shaft (7) is rotatably connected to the filter layer (6), and its rotation axis coincides with its own axis; The axis of the guide fan (8) coincides with the axis of the first rotating shaft (7); the guide fan (8) is located inside the air intake pipe (3) and is sleeved on the outside of the first rotating shaft (7); the guide fan (8) is fixedly connected to the first rotating shaft (7); The two cleaning strips (9) are respectively perpendicular to the first rotating shaft (7), symmetrically arranged inside the processing box (2), and are respectively located on the side of the filter layer (6) close to the air inlet pipe (3) and on both sides of the first rotating shaft (7). The two cleaning strips (9) are respectively fixedly connected to the first rotating shaft (7); The plurality of bristles (10) are transversely arranged inside the processing box (2) and evenly distributed on the sides of the two cleaning strips (9) close to the filter layer (6); one end of the plurality of bristles (10) is fixedly connected to the two cleaning strips (9) respectively, and the other end is tightly attached to the filter layer (6).

3. A flue gas desulfurization and denitrification adsorption tower according to claim 2, characterized in that : It comprises a collecting box (4), the collecting box (4) is arranged at the lower part of the processing box (2), and is directly below the plurality of bristles (10), the collecting box (4) is fixedly connected to the processing box (2), and the collecting box (4) is communicated with the processing box (2).

4. A flue gas desulfurization and denitrification adsorption tower according to claim 2, characterized in that The cooling device comprises a first cylinder (11), a first piston (12), a plug rod (13), a first spring (14), a bump (15), a water tank (16), a first connecting pipe (17), a nozzle (18), a plurality of atomizing nozzles (19), a second connecting pipe (20), an annular air bag (30), a second cylinder (31), a second piston (32), a vibrating rod (33), a second spring (34), a hammer head (35), and a third connecting pipe (36); The first cylinder (11) is vertically arranged above the processing box (2), and the bottom of the first cylinder (11) is fixedly connected to the top of the processing box (2); The first piston (12) is transversely arranged inside the first cylinder (11), and the first piston (12) is vertically slidably connected to the first cylinder (11); The plug rod (13) is vertically arranged at the lower part of the first cylinder body (11) and is located above the cleaning bar (9). The plug rod (13) vertically penetrates the top of the processing box (2). The upper end of the plug rod (13) is fixedly connected to the bottom of the first piston (12), and the plug rod (13) is vertically slidably connected to the processing box (2); The first spring (14) is vertically arranged inside the first cylinder (11), below the first piston (12), and sleeved on the outside of the plug rod (13); the upper end of the first spring (14) is fixedly connected to the bottom of the first piston (12), and the lower end is fixedly connected to the top of the processing box (2); The convex block (15) is arranged inside the processing box (2) and below the plug rod (13). The convex block (15) is fixedly connected to the lower end of the plug rod (13). A strong magnet is arranged inside the convex block (15); The water tank (16) is arranged above the treatment tank (2), and the bottom of the water tank (16) is fixedly connected to the top of the treatment tank (2); One end of the first connecting pipe (17) is in communication with the water tank (16), and the other end is in communication with the upper portion of the first cylinder body (11); a first one-way valve is provided in the first connecting pipe (17); The nozzle (18) is annular, with its axis coinciding with the axis of the first rotating shaft (7), and is arranged inside the processing box (2) and sleeved on the outside of the air inlet pipe (3). The nozzle (18) is fixedly connected to the outside of the air inlet pipe (3); A plurality of atomizing nozzles (19) are arranged inside the processing box (2) and are evenly distributed on the side of the nozzle pipe (18) close to the filter layer (6), and one end of each of the atomizing nozzles (19) is connected to the nozzle pipe (18); The second connecting pipe (20) is arranged at the upper part of the processing box (2), one end of the second connecting pipe (20) is connected to the nozzle (18), and the other end passes through the top of the processing box (2) and is connected to the upper part of the first cylinder body (11), and a second one-way valve is arranged in the second connecting pipe (20); The annular airbag (30) is vertically arranged inside the processing box (2), above the protrusion (15), and sleeved on the outside of the plug rod (13). The upper end of the annular airbag (30) is fixedly connected to the top of the processing box (2), and the lower end is fixedly connected to the protrusion (15); The second cylinder (31) is parallel to the first rotating shaft (7), is arranged inside the processing box (2), and is located on the side of the filter layer (6) away from the air intake pipe (3). The second cylinder (31) is fixedly connected to the top surface of the processing box (2); The second piston (32) is vertically arranged inside the second cylinder (31), and the second piston (32) is slidably connected to the inner wall of the second cylinder (31) in a transverse direction, and the sliding direction is parallel to the first rotating shaft (7); The vibration rod (33) is parallel to the first rotating shaft (7), is arranged inside the processing box (2), and is located on the side of the second piston (32) close to the filter layer (6). The vibration rod (33) transversely penetrates the side of the second cylinder (31) close to the filter layer (6). One end of the vibration rod (33) is fixedly connected to the second piston (32), and the vibration rod (33) is transversely slidably connected to the second cylinder (31); The second spring (34) is located inside the second cylinder (31) and is sleeved on the outside of the vibration rod (33); one end of the second spring (34) is fixedly connected to the second piston (32), and the other end is fixedly connected to the inner wall of the second cylinder (31); The hammer head (35) is arranged inside the processing box (2) and between the vibration rod (33) and the filter layer (6); the hammer head (35) is fixedly connected to the other end of the vibration rod (33) and is connected to the filter layer (6); The third connecting pipe (36) is arranged at the upper part of the processing box (2), one end of the third connecting pipe (36) is connected to the annular airbag (30), and the other end is connected to the side of the second cylinder (31) away from the filter layer (6).

5. A flue gas desulfurization and denitrification adsorption tower according to claim 4, characterized in that : There are strong magnets in the ends of the two cleaning strips (9) that are far away from each other, and they repel the strong magnets in the protrusions (15) respectively.

6. A flue gas desulfurization and denitrification adsorption tower according to claim 4, characterized in that The second cylinder body (31) is fixedly connected to the inner top surface of the processing box (2) by welding.

7. A flue gas desulfurization and denitrification adsorption tower according to claim 4, characterized in that The second connecting pipe (20) is made of a high temperature resistant material.

8. A flue gas desulfurization and denitrification adsorption tower according to claim 4, characterized in that The air flow dispersing device comprises a hollow plate (21), an annular chute (22), an annular slider (23), a rotating disk (24), a plurality of second air cylinders (25), a plurality of fixing rods (26), a plurality of cross rods (27), and a plurality of fans (28); The hollow plate (21) is perpendicular to the first rotating shaft (7), is arranged inside the processing box (2), and is located on the side of the second cylinder (31) away from the air intake pipe (3). The hollow plate (21) is fixedly connected to the inner wall of the processing box (2). A circular opening is arranged in the middle of the hollow plate (21), and the axis of the circular opening coincides with the axis of the first rotating shaft (7); The annular sliding groove (22) is arranged on the inner wall of the circular opening, and its axis coincides with the axis of the first rotating shaft (7); The axis of the annular slider (23) coincides with the axis of the first rotating shaft (7), the annular slider (23) is located in the annular slide groove (22), and the annular slider (23) is slidably connected to the annular slide groove (22); The rotating disk (24) is circular, and its axis coincides with the axis of the first rotating shaft (7). The rotating disk (24) is located in the circular opening and sleeved on the outer side of the first rotating shaft (7). The rotating disk (24) is fixedly connected to the first rotating shaft (7), and the rotating disk (24) is fixedly connected to the annular slider (23). The axes of the plurality of second air tubes (25) are parallel to the axis of the first rotating shaft (7), and are arranged inside the processing box (2). The plurality of second air tubes (25) transversely penetrate the rotating disk (24), and the plurality of second air tubes (25) are fixedly connected to the rotating disk (24); The plurality of fixing rods (26) are respectively perpendicular to the axes of the plurality of second air cylinders (25), are arranged inside the processing box (2), and are respectively arranged inside the plurality of second air cylinders (25), and the plurality of fixing rods (26) are respectively fixedly connected to the inner walls of the plurality of second air cylinders (25); The axes of the plurality of cross bars (27) coincide with the axes of the corresponding second air cylinders (25), are arranged inside the processing box (2), are respectively arranged inside the plurality of second air cylinders (25), and are respectively located on the sides of the plurality of fixed rods (26) away from the filter layer (6), and the plurality of cross bars (27) are respectively fixedly connected to the plurality of fixed rods (26); The axes of the fans (28) coincide with the axes of the corresponding cross bars (27), and are arranged inside the processing box (2), respectively arranged inside the second air ducts (25), and respectively sleeved on the outsides of the cross bars (27). The axes of the fans (28) coincide with the axes of the corresponding cross bars (27), and the fans (28) are rotatably connected to the cross bars (27).

9. A flue gas desulfurization and denitrification adsorption tower according to claim 8, characterized in that A plurality of the second air cylinders (25) are evenly distributed on the rotating disk (24).

10. The flue gas desulfurization and denitrification adsorption tower according to claim 8, characterized in that : comprising an annular guide plate (29), the axis of which coincides with the axis of the first rotating shaft (7), and is arranged inside the processing box (2), between the second cylinder body (31) and the hollow plate (21), the annular guide plate (29) being fixedly connected to the inner wall of the processing box (2), and the diameter of the annular guide plate (29) on the side close to the filter layer (6) is larger than the diameter of the annular guide plate (29) on the side close to the hollow plate (21).

Images