Tail gas purification device based on activated carbon method and process thereof

Abstract

This application relates to the field of flue gas purification, and in particular to a tail-end flue gas purification device and process based on activated carbon. It includes an adsorption tower body with a filter flue formed within it for flue gas flow. Several pieces of activated carbon for filtering the flue gas are disposed within the filter flue. A support plate slides and adheres to the filter flue, with the activated carbon placed on the support plate. A feed chamber is provided within the adsorption tower body for the support plate carrying new activated carbon to enter, and the feed chamber is connected to the filter flue. A sealing component is provided on the support plate to prevent flue gas from the filter flue from entering the feed chamber. A discharge chamber is also provided within the adsorption tower body for the support plate carrying saturated activated carbon to discharge. A cleaning component is provided on the inner wall of the discharge chamber to prevent flue gas from the filter flue from entering the discharge chamber. This application has the effect of reducing the probability of affecting the efficiency of flue gas purification when replacing activated carbon.

Description

Technical Field

[0001] This application relates to the field of flue gas purification, and in particular to a tail flue gas purification device and process based on activated carbon method. Background Technology

[0002] my country is paying increasing attention to environmental pollution, and the flue gas produced in the coking industry is a major cause of environmental pollution. Therefore, the purification of coke oven flue gas is imperative.

[0003] The commonly used process is as follows: first, the flue gas is cooled down, then the flue gas is passed into an adsorption tower for adsorption and desulfurization treatment, then ammonia is injected into the flue gas for SCR desulfurization treatment, and the activated carbon in the adsorption tower is regenerated through a desorption tower after it becomes saturated.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: when the activated carbon in the adsorption tower becomes saturated, it needs to be removed and replaced. However, before this operation, the operation of feeding flue gas into the adsorption tower must be stopped to reduce the probability of flue gas leakage. Therefore, the operation of replacing activated carbon affects the efficiency of flue gas purification. Summary of the Invention

[0005] To address the issue that replacing activated carbon in the adsorption tower affects the efficiency of flue gas purification, this application provides a tail-end flue gas purification device and its process based on activated carbon.

[0006] This application provides a tail gas purification device and process based on activated carbon method, which adopts the following technical solution:

[0007] A tail gas purification device based on activated carbon includes an adsorption tower body. A filter flue is formed within the adsorption tower body for supplying flue gas flow. A plurality of activated carbons for filtering the flue gas are disposed within the filter flue. A support plate slides within the filter flue, and the activated carbons are placed on the support plate. A feed chamber is provided within the adsorption tower body for the support plate carrying new activated carbon to enter. The feed chamber is connected to the filter flue. A sealing component is provided on the support plate to prevent flue gas from the filter flue from entering the feed chamber. A discharge chamber is also provided within the adsorption tower body for the support plate carrying saturated activated carbon to discharge. A cleaning component is provided on the inner wall of the discharge chamber to prevent flue gas from the filter flue from entering the discharge chamber.

[0008] By adopting the above technical solution, workers can first place new activated carbon on the support plate inside the feed chamber. The sealing component on the support plate seals the feed chamber, making it difficult for flue gas from the filter duct to enter. This reduces the probability of flue gas leaking from the feed chamber to the outside when new activated carbon is placed on the support plate, improving the sealing performance and protecting the external environment, without hindering the addition of new activated carbon. Then, the saturated activated carbon is discharged through the discharge chamber, while the cleaning component cleans the flue gas in the filter duct. The inlet and outlet channels act as obstructions, reducing the probability of flue gas from the filter flue entering the outlet channel and decreasing the probability of flue gas leakage during activated carbon discharge. This improves sealing and protects the external environment. Combined, these features allow flue gas to be directly added to the support plate carrying new activated carbon during filtration, and the saturated support plate can be discharged without affecting the filtration process. This achieves simultaneous activated carbon replacement during filtration, minimizing the impact of activated carbon replacement on filtration efficiency and improving overall filtration efficiency.

[0009] Optionally, the support plate slides and seals within the feed chamber. The support plate has a first air hole for flue gas to pass through. The sealing assembly includes a sealing plate rotatably mounted on the support plate. The sealing plate has a second air hole for flue gas to pass through. The first air hole and the second air hole are offset, so that the side wall of the sealing plate seals the opening of the first air hole. A torsion spring is mounted on the rotating shaft of the sealing plate. The torsion spring twists and extends in the direction in which the sealing plate seals the first air hole. A trigger block for opening the sealing plate is mounted on the inner wall of the filter flue.

[0010] By adopting the above technical solution, when the support plate is in the feeding cavity, it adheres to the inner wall of the feeding cavity, thus achieving a sealing effect and making it difficult for flue gas to pass through the support plate. When the support plate enters the working position of the filter flue, the trigger block abuts and opens the sealing plate, creating a gap between the sealing plate and the support plate. This gap allows the first air hole and the second air hole to connect, and at this time, the flue gas in the filter flue can enter the activated carbon for filtration through the second air hole and the first air hole. The structure is reliable and realizes rapid switching between the sealed state and the working state.

[0011] Optionally, a trigger groove is provided on the inner wall of the filter flue for the trigger block to slide and extend. A spring is provided between the inner wall of the trigger groove and the trigger block. The spring extends and extends in the direction in which the trigger block pops out of the trigger groove. A slot is provided on the support plate for the trigger block to be inserted. The slot extends to the sealing plate.

[0012] By adopting the above technical solution, the trigger block is inserted into the slot. As the carrier plate slides, the trigger block abuts against the sealing plate, causing the sealing plate to rotate and open into the working state. When the carrier plate continues to slide, the sealing plate continues to open until the sealing plate releases its contact with the trigger block. At this time, the sealing plate returns to the sealed state under the action of the torsion spring. The structure is reliable and realizes a rapid switch between the sealed state and the working state.

[0013] Optionally, the cleaning assembly includes an air blowing pipe embedded in the inner wall of the discharge chamber, with the air outlet of the air blowing pipe facing the junction of the discharge chamber and the filter flue. The trigger groove is also formed on the inner wall of the discharge chamber between the air blowing pipe and the filter flue.

[0014] By adopting the above technical solution, when the support plate enters the discharge chamber, the sealing plate is first opened by the trigger block, and then the activated carbon is blown by the air blowing pipe to disperse the flue gas remaining between the molecules in the activated carbon. At the same time, it also hinders the flue gas in the filter flue from entering the discharge chamber. While cleaning the activated carbon, it also reduces the probability of flue gas entering the discharge chamber and the probability of flue gas being carried out when the activated carbon is discharged from the discharge chamber, thus protecting the environment.

[0015] Optionally, a first chain is provided inside the adsorption tower body, and a plurality of sealing plates are provided on the first chain. The bearing plate is provided on the sealing plates, and adjacent sealing plates overlap each other to achieve contact sealing. A first sprocket is rotatably provided inside the adsorption tower body and meshes with the first chain. The rotation of the first sprocket drives the first chain to drive the transmission.

[0016] By adopting the above technical solution, the sealing plate is driven by the sprocket and the first chain, and the bearing plate is driven by the sealing plate. At the same time, the sealing plates in the feed chamber, discharge chamber and filter flue overlap each other to form a seal, blocking the flue gas outside the first chain, reducing the probability of flue gas leaking out of the space where the first chain is located, and reducing the probability that the transmission of the bearing plate will affect the filtration efficiency of the flue gas.

[0017] Optionally, a relief groove is provided on the side wall of the sealing sheet, the relief groove being used for the end side wall of adjacent sealing sheets to insert and abut.

[0018] By adopting the above technical solution, the adjacent sealing plates are repositioned by the clearance groove, which makes the side walls of the adjacent sealing plates flush. This reduces the probability that the bearing plate will be tilted due to the misalignment of the sealing plates, resulting in gaps between the side wall of the bearing plate and the inner wall of the feed cavity, the inner wall of the discharge cavity, and the inner wall of the filter flue, thus affecting the sealing performance of the bearing plate and improving the sealing performance of the bearing plate.

[0019] Optionally, the adsorption tower body is provided with a feed channel, which is connected to the feed chamber. The feed channel is used to feed activated carbon onto the support plate. A sealing plate is rotatably connected to the adsorption tower body to cover and seal the opening of the feed channel. A control groove is provided on the sealing plate. A slot is provided on the inner wall of the feed channel. A locking rod is rotatably provided in the control groove for rotating into and locking in the slot. A control rod is provided on the locking rod to penetrate the side wall of the sealing plate to the outside. Rotating the control rod is used to control the rotation of the locking rod.

[0020] By adopting the above technical solution, workers can place new activated carbon on the support plate in the feed cavity through the feed channel, and then seal the opening of the feed channel with a sealing plate. Then, by rotating the control rod, the locking rod is driven into the locking groove for locking and limiting. This reduces the probability of the sealing plate opening due to air pressure, improves the sealing performance of the sealing plate to the feed channel, further improves the sealing performance, and further reduces the probability that the position of the worker feeding the material will affect the sealing of the flue gas.

[0021] Optionally, the adsorption tower includes a desorption tower for regenerating activated carbon. The main body of the adsorption tower is provided with a transmission pipe connected to the feed end of the desorption tower. The transmission pipe is also connected to the discharge chamber. A transmission belt for transporting saturated activated carbon is provided inside the transmission pipe. A feeding component for feeding saturated activated carbon from the support plate onto the transmission belt is provided inside the main body of the adsorption tower.

[0022] By adopting the above technical solution, the activated carbon saturated with activated carbon in the discharge chamber is fed onto the conveyor belt through the feeding component. Then, it is transported to the desorption tower for regeneration, thereby realizing automatic feeding of activated carbon and improving work efficiency. At the same time, the connection of the transmission pipeline also plays a sealing role, further reducing the probability of flue gas leakage to the outside world when the activated carbon is discharged, thus protecting the external environment.

[0023] Optionally, the feeding assembly includes a second chain, and a second sprocket meshing with the second chain is rotatably disposed inside the adsorption tower body. The second chain is parallel to the outer ring of the first chain. A base block is disposed on the second chain, and a transfer plate is embedded and slidably disposed on the base block. The transfer plate is used to cover the activated carbon on the support plate of the discharge channel. The support plate in the discharge channel is flipped as it is transmitted by the first chain, pouring the activated carbon onto the transfer plate. A sliding drive is disposed on the base block to drive the transfer plate to slide away from the support plate onto the conveyor belt. A transfer slot is opened through the transfer plate for the activated carbon to fall onto the conveyor belt. A control plate is rotatably disposed on the transfer plate to seal the opening of the transfer slot. The control plate is also used to support the activated carbon. A rotation drive is disposed on the transfer plate to control the rotation of the control plate.

[0024] By adopting the above technical solution, the transfer plate is moved to the support plate, and then the positions of the support plate and the transfer plate are interchanged by the transmission of the first chain and the second chain. This allows activated carbon to be transferred from the support plate to the transfer plate. Then, the sliding drive component slides the transfer plate onto the conveyor belt, which also makes way for the support plate. At this time, the transfer plate slides from the discharge cavity onto the conveyor belt, and the support plate can continue to be driven back into the feed cavity to achieve circulation. The transfer plate opens the control plate by rotating the drive component, allowing the activated carbon to fall onto the conveyor belt through the transfer trough, thereby realizing automatic feeding, reducing the workload of the workers, improving automation, and increasing processing efficiency.

[0025] Optionally, a process for a tail-end flue gas purification device based on activated carbon includes the following steps: 1. Flue gas is introduced into the filter flue, and after being adsorbed and filtered by activated carbon on multiple layers of the support plate, the filter flue continues to desulfurize the flue gas; 2. New activated carbon is placed on the support plate in the feed chamber; 3. When saturated activated carbon needs to be replaced, the support plate carrying the saturated activated carbon is transferred from the filter flue to the discharge chamber by the first chain, while the support plate in the feed chamber is pulled into the filter flue; 4. When the first chain transfers the support plate in the discharge chamber to the corner, the transfer plate covers the activated carbon on the support plate, and the transfer plate is transferred together with the support plate on the second chain until the activated carbon on the support plate falls onto the transfer plate. The transfer plate is then moved to the conveyor belt by a sliding drive, and then the activated carbon is dropped onto the conveyor belt by the rotating drive. The saturated activated carbon is then transferred to the desorption tower by the conveyor belt.

[0026] By adopting the above technical solution, the staff only needs to add activated carbon once in advance, adding new activated carbon to several support plates in the feed chamber. Subsequently, the support plates in the filter flue can be automatically replaced at certain intervals to achieve the replacement between old and new activated carbon. The saturated activated carbon is automatically transported to the desorption tower for regeneration, which further reduces the workload of the staff, greatly improves work efficiency, realizes the regeneration of activated carbon, saves resources, and plays a role in environmental protection and cost reduction.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. This allows for the direct addition of new activated carbon to the support plate during the filtration process, and the discharge of the support plate saturated with activated carbon, without affecting the flue gas filtration operation. This achieves the goal of replacing activated carbon while the filtration process is in progress, reducing the impact of activated carbon replacement on filtration efficiency and improving filtration efficiency.

[0029] 2. The bearing plate, sealing plate, and trigger block enable rapid switching between the sealing state and the working state.

[0030] 3. It reduces the workload of staff, greatly improves work efficiency, and also realizes the regeneration of activated carbon, saving resources and playing a role in environmental protection and cost reduction. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a tail gas purification device based on activated carbon method in an embodiment of this application.

[0032] Figure 2 It highlights the edge of the filter flue. Figure 1 A cross-sectional view of line AA in the middle.

[0033] Figure 3 This is a structural schematic diagram of the support plate.

[0034] Figure 4 It is to highlight the edge of the feed channel Figure 1 A cross-sectional view of the BB line.

[0035] Figure 5 This is a structural diagram highlighting the first and second pores.

[0036] Figure 6 It highlights the trigger slot. Figure 4 A magnified structural diagram at point C.

[0037] Figure 7 This is an exploded structural diagram highlighting the material feeding component.

[0038] Figure 8 It highlights the air tube. Figure 4 A magnified structural diagram at point D.

[0039] Figure 9 It highlights the snap-fit ​​lever. Figure 4 A magnified structural diagram at point E in the middle.

[0040] Figure 10 It highlights the load-bearing through groove. Figure 7 A magnified structural diagram at point F in the middle.

[0041] Figure 11 This is an exploded structural diagram highlighting the relationship between the receiving trough, the bearing channel, and the discharge cavity.

[0042] Figure 12 This is a schematic diagram of the exploded structure when the transfer plate covers the support plate and the activated carbon is sandwiched in the middle during the working state.

[0043] Figure 13 This is a schematic diagram showing the tooth grooves.

[0044] Explanation of reference numerals in the attached drawings: 1. Adsorption tower body; 11. Filter flue; 12. Support plate; 121. Placement slot; 13. Feed chamber; 14. Discharge chamber; 2. Sealing assembly; 21. First air hole; 22. Sealing plate; 221. Torsion spring; 23. Second air hole; 24. Trigger block; 241. Trigger groove; 242. Spring; 25. Slot; 3. Cleaning assembly; 31. Air blowing pipe; 4. First chain; 41. Sealing plate; 42. First sprocket; 5. Feed channel; 51. Sealing plate; 511. Sealing... 52. Sealing rubber; 53. Control groove; 54. Card slot; 55. Carding rod; 56. Rod body; 57. Limiting block; 58. Limiting groove; 59. Control rod; 60. Analysis tower; 61. Transmission pipeline; 62. Conveyor belt; 71. Feeding assembly; 72. Second chain; 73. Second sprocket; 74. Base block; 75. Transfer plate; 76. Sliding drive component; 77. Tooth groove; 78. Sliding gear; 79. Transfer through groove; 70. Control plate; 71. Rotation drive component; 82. Receiving groove; 83. Bearing through groove. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0046] This application discloses a tail gas purification device and process based on activated carbon method. (Refer to...) Figure 1 and Figure 2 and Figure 3The tail gas purification device based on activated carbon includes an adsorption tower body 1. A filter flue 11 for flue gas flow is formed within the adsorption tower body 1. Several activated carbons for filtering the flue gas are disposed within the filter flue 11. A support plate 12 is slidably attached to the filter flue 11. A placement groove 121 for placing activated carbon is formed on the side wall of the support plate 12, and the inner wall of the placement groove 121 also serves to limit the position of the activated carbon. The outer ring side wall of the support plate 12, which is attached to the inner wall of the filter flue 11, abuts and seals against the inner wall of the filter flue 11, allowing all the flue gas to pass through the activated carbon. Several support plates 12 are arranged parallel to each other along the length of the filter flue 11. In this embodiment, the number of support plates 12 for filtering the flue gas in the filter flue 11 is at least two. Honeycomb activated carbon is used. Flue gas passing through two activated carbons can achieve a very high desulfurization efficiency.

[0047] Reference Figure 2 and Figure 3 The filter flue 11 is divided into three sections. The first section extends horizontally for the intake of flue gas, the third section extends horizontally for the outlet of filtered flue gas, and the second section extends vertically for filtering the flue gas. The support plate 12 is located within the second section of the filter flue 11. The first section of the filter flue 11 is connected to the end of the second section of the filter flue 11 near the ground, and the third section of the filter flue 11 is connected to the end of the second section of the filter flue 11 away from the ground. By transmitting the flue gas from bottom to top, the filtration of the flue gas can be more thorough. The support plate 12 slides within the second section of the filter flue 11 in an upward direction.

[0048] Reference Figure 2 The end of the third-stage filter flue 11 that discharges flue gas is connected to a pipe for injecting ammonia gas, and the port of the third-stage filter flue 11 is connected to the feed end of the SCR denitrification system.

[0049] Reference Figure 2 and Figure 3 and Figure 4 The adsorption tower body 1 also has a feed chamber 13 for the support plate 12 carrying new activated carbon to enter. The feed chamber 13 is connected to the end of the filter flue 11 near the ground, and the cross-sectional dimensions of the feed chamber 13 are equal to those of the filter flue 11. The length of the feed chamber 13 extends along the length of the second section of the filter flue 11. A sealing assembly 2 is installed on the support plate 12 to prevent the flue gas in the filter flue 11 from entering the feed chamber 13.

[0050] Reference Figure 3 and Figure 4 and Figure 5The support plate 12 slides and seals within the feed cavity 13, providing a sealing effect. A first vent 21 for flue gas to pass through is provided on the bottom wall of the placement groove 121. The first vent 21 penetrates the side wall of the support plate 12, and its opening direction is along the thickness direction of the support plate 12. The sealing assembly 2 includes a sealing plate 22 rotatably connected to the bottom wall of the support plate 12. The rotation axis of the sealing plate 22 is parallel to the edge side wall of the bottom wall of the support plate 12.

[0051] Reference Figure 5 The sealing plate 22 has a second air hole 23 through which flue gas passes. The first air hole 21 and the second air hole 23 are staggered, so that the side wall of the sealing plate 22 seals the opening of the first air hole 21. After the sealing plate 22 rotates along its own rotation axis, a gap is created between the side wall of the sealing plate 22 and the supporting plate 12, so that the flue gas can flow between the first air hole 21 and the second air hole 23.

[0052] Reference Figure 5 A torsion spring 221 is sleeved on the rotating shaft of the sealing plate 22. The length direction of the torsion spring 221 extends along the length direction of the rotating shaft of the sealing plate 22. One end of the torsion spring 221 is fixedly connected to the rotating shaft of the sealing plate 22, and the other end of the torsion spring 221 is fixedly connected to the bottom wall of the bearing plate 12. The torsion spring 221 twists and stretches along the direction in which the sealing plate 22 seals the first air hole 21.

[0053] Reference Figure 3 and Figure 5 and Figure 6 A trigger groove 241 is provided on the inner wall of the filter flue 11. A trigger block 24 slides in the trigger groove 241. The side wall of the trigger block 24 abuts against the inner wall of the trigger groove 241. The trigger block 24 slides in the trigger groove 241 along its depth direction. A spring 242 is fixedly connected between the bottom wall of the trigger block 24 and the bottom wall of the trigger groove 241. The spring 242 extends and contracts in the direction that the trigger block 24 slides out of the trigger groove 241. A slot 25 for inserting the trigger block 24 is provided on the side wall of the filter flue 11 facing the trigger groove 241. The slot 25 corresponds to the trigger block 24 and extends to the side wall of the sealing plate 22 facing the support plate 12, so that after the trigger block 24 is inserted into the slot 25, it abuts against the sealing plate 22. As the support plate 12 slides upward, it abuts against the sealing plate 22 and rotates the sealing plate 22 in the opening direction.

[0054] Reference Figure 4 and Figure 5 and Figure 6The end of the trigger block 24 exposed inside the filter flue 11 is inclined toward the side wall of the feed chamber 13. The further the trigger block 24 is from the bottom wall of the trigger groove 241, the further away it is from the feed chamber 13. The elastic force of the spring 242 is greater than the torsional elastic force of the torsion spring 221 that rotates the sealing plate 22. When the inclined side wall of the trigger block 24 abuts against the support plate 12, it slides as the support plate 12 continues to rise. Guided by the inclined side wall, the trigger block 24 retracts into the trigger groove 241. When the trigger block 24 pops out into the insertion slot 25, as the support plate 12 continues to rise, the inclined side wall of the trigger block 24 abuts against the side wall of the sealing plate 22. Since the elastic force of the spring 242 is greater than the torsional elastic force of the torsion spring 221, the abutment of the sealing plate 22 makes it difficult for the trigger block 24 to retract into the trigger groove 241. Instead, the sealing plate 22 rotates and opens under the abutment of the trigger block 24. The trigger slot 241 is not located in the feed channel 13.

[0055] Reference Figure 4 and Figure 7 The adsorption tower body 1 also has a discharge chamber 14 for discharging the saturated activated carbon from the support plate 12. The cross-sectional dimensions of the discharge chamber 14 are equal to those of the filter flue 11, and the discharge chamber 14 is connected to the end of the second section of the filter flue 11 away from the ground. A cleaning assembly 3 is installed on the inner wall of the discharge chamber 14 to prevent the flue gas in the filter flue 11 from entering the discharge chamber 14.

[0056] Reference Figure 4 and Figure 7 and Figure 8 The cleaning component 3 includes several air blowing pipes 31 embedded in the inner wall of the discharge chamber 14. The air blowing pipes 31 are distributed circumferentially, and all air blowing pipes 31 are located inside the inner wall of the discharge chamber 14 and do not extend into the discharge chamber 14. The air outlet of the air blowing pipe 31 faces the junction of the discharge chamber 14 and the filter flue 11. The trigger groove 241 is also formed on the inner wall of the discharge chamber 14 between the air blowing pipe 31 and the filter flue 11.

[0057] Reference Figure 5 and Figure 7 The adsorption tower body 1 is equipped with a first chain 4, which runs through the feed chamber 13, the filter flue 11 and the discharge chamber 14. Several sealing plates 41 are fixedly connected to the first chain 4. The bearing plate 12 is fixedly connected to the sealing plates 41. The end sidewalls of adjacent sealing plates 41 overlap each other to achieve abutment sealing. The two end sidewalls of the sealing plates 41 overlap with the end sidewalls of adjacent sealing plates 41. The other two end sidewalls of the sealing plates 41 abut against and adhere to the inner wall of the feed chamber 13 or the filter flue 11 or the discharge chamber 14 to achieve sealing. The sealing plates 41 are wrapped with a sealing rubber layer. Adjacent sealing plates 41 abut against and squeeze each other through the sealing rubber layer to achieve sealing.

[0058] Reference Figure 7 A first motor is fixedly connected inside the adsorption tower body 1. A first sprocket 42 for meshing with a first chain 4 is fixedly connected to the rotating shaft of the first motor. The first sprocket 42 rotates coaxially with the rotating shaft of the first motor, and the rotation of the first sprocket 42 drives the first chain 4 to drive the transmission.

[0059] Reference Figure 7 The first chain 4 is a circumferentially circulating drive used to drive the bearing plate 12 in the feed chamber 13 to the filter flue 11, or to drive the bearing plate 12 in the filter flue 11 to the discharge chamber 14, or to drive the bearing plate 12 in the discharge chamber 14 more than half a turn circumferentially and then return it to the feed chamber 13.

[0060] Reference Figure 1 and Figure 4 and Figure 7 A feed channel 5 is provided on the outer wall of the adsorption tower body 1. The feed channel 5 is connected to the feed chamber 13. At least one support plate 12 is attached to the inner wall of the feed chamber 13 between the opening surface of the feed channel 5 and the filter flue 11 to seal the feed chamber 13 and prevent flue gas from leaking into the feed channel 5 and then leaking to the outside. The feed channel 5 is used for workers to put new activated carbon into the placement slot 121 of the support plate 12.

[0061] Reference Figure 1 and Figure 4 A sealing plate 51 is rotatably connected to the outer wall of the adsorption tower body 1 to cover and seal the opening of the feed channel 5. The side wall of the sealing plate 51 is covered with sealing rubber 511, which is used to abut against the outer wall of the adsorption tower body 1 and cover and seal the opening of the feed channel 5.

[0062] Reference Figure 9 A control groove 52 is provided on the sealing plate 51, and a slot 53 is provided on the inner wall of the feed channel 5. A locking rod 54 rotates within the control groove 52. The locking rod 54 includes a rod body 541 and a limiting block 542. A limiting groove 543 is provided on the inner wall of the control groove 52 for the limiting block 542 to engage. The diameter of the opening of the control groove 52 is smaller than the diameter of the opening of the limiting groove 543, while the cross-sectional diameter of the limiting block 542 is equal to the cross-sectional diameter of the limiting groove 543 to fit together, so that the limiting block 542 is limited within the limiting groove 543 and can only rotate within the limiting groove 543. The rod body 541 is fixedly connected to the limiting block 542. After passing through the control groove 52 and entering the feed channel 5, the rod body 541 bends. Rotating the limiting block 542 allows the end of the rod body 541 to be inserted into the slot 53 to achieve locking and limiting. A control rod 55 is fixedly connected to the side wall of the limit block 542 facing away from the rod body 541. The control rod 55 passes through the side wall of the sealing plate 51 to the outside. The control rod 55 is used by the staff to control the rotation of the rod body 541.

[0063] Reference Figure 7 The system includes an adsorption tower 6 for regenerating activated carbon. A transmission pipe 61 is fixedly connected to the main body 1 of the adsorption tower and communicates with the feed end of the adsorption tower 6. The transmission pipe 61 is also connected to the discharge chamber 14. One end of the discharge chamber 14 is connected to the end of the filter flue 11 away from the ground. The length of the discharge chamber 14 extends along the length of the first chain 4, so that the other end of the discharge chamber 14 extends at a bend of 180° at the corner of the first chain 4. The transmission pipe 61 is connected to the end of the discharge chamber 14 away from the filter flue 11.

[0064] Reference Figure 4 and Figure 7 The conveyor belt 62 for conveying saturated activated carbon is installed inside the conveyor pipe 61, and a conveying drive component for rotating the conveyor belt 62 is installed inside the conveyor pipe 61. The adsorption tower body 1 is equipped with a feeding assembly 7 for feeding the saturated activated carbon on the support plate 12 onto the conveyor belt 62.

[0065] Reference Figure 7 and Figure 10 The adsorption tower body 1 has a receiving groove 8 inside. The receiving groove 8 is located on the outer ring of the discharge channel 14, and the length direction of the receiving groove 8 is parallel to the length direction of the discharge channel 14. The length direction of the receiving groove 8 is arc-shaped, so that the length direction of the receiving groove 8 is parallel and matched to the bending position of the discharge channel 14. The length direction of the receiving groove 8 extends only from the bending position of the discharge channel 14 to the bending position of the discharge channel 14. That is, the receiving groove 8 surrounds the outer ring of the bending and turning position of the discharge channel 14.

[0066] Reference Figure 7 and Figure 10 The feeding assembly 7 includes a second chain 71 located in the receiving groove 8, which drives the second chain 71 along the length of the receiving groove 8. A second motor is fixedly connected inside the adsorption tower body 1. A second sprocket 711 that meshes with the second chain 71 is fixedly connected to the rotating shaft of the second motor, and the second sprocket 711 and the rotating shaft of the second motor rotate coaxially.

[0067] Reference Figure 10 and Figure 11The second chain 71 is parallel to the outer ring of the first chain 4, and is only parallel to the position where the first chain 4 bends 180°. A base block 72 is fixedly connected to the second chain 71. The sidewall of the base block 72 is arc-shaped, so that the base block 72 fits into the curved receiving groove 8, and the sidewall of the base block 72 abuts against the inner wall of the receiving groove 8. A bearing through groove 81 is provided on the inner wall of the receiving groove 8, which extends to communicate with the discharge cavity 14. The width of the opening of the bearing through groove 81 is smaller than the cross-sectional width of the receiving groove 8. A transfer plate 73 is embedded in the base block 72 and slides through the bearing through groove 81 into the discharge cavity 14. The transfer plate 73 slides in the direction of insertion or withdrawal from the discharge cavity 14.

[0068] Reference Figure 11 and Figure 12 and Figure 13 A sliding drive component 74 is installed on the base block 72 to drive the transfer plate 73 to slide on the conveyor belt 62 in a direction away from the support plate 12. The sliding drive component 74 includes a third motor fixedly connected to the base block 72. Several toothed grooves 741 are opened on the side wall of the transfer plate 73. The toothed grooves 741 are distributed along the sliding direction of the transfer plate 73. A sliding gear 742 is fixedly connected to the end of the rotating shaft of the third motor. The sliding gear 742 meshes with the toothed grooves 741. The rotating shaft of the third motor and the sliding gear 742 rotate coaxially. The rotation of the sliding gear 742 drives the transfer plate 73 to slide through the toothed grooves 741.

[0069] Reference Figure 7 and Figure 11 and Figure 12 A transfer slot 75 is provided through the transfer plate 73 for activated carbon to fall onto the conveyor belt 62. A control plate 76 is rotatably connected to the outer wall of the transfer plate 73 to seal the opening of the transfer slot 75. The rotation shaft of the control plate 76 is located at the end of the control plate 76 and is parallel to the side wall of the transfer plate 73. After the control plate 76 seals the opening of the transfer slot 75, the activated carbon can be placed on the control plate 76. At this time, the transfer slot 75 also serves to limit the movement of the activated carbon. A rotation drive 77 is installed on the transfer plate 73 to control the rotation of the control plate 76. The rotation drive 77 includes a fourth motor fixedly connected to the transfer plate 73. The rotation shaft of the fourth motor is fixedly connected to the rotation shaft of the control plate 76, and the rotation shaft of the fourth motor and the rotation shaft of the control plate 76 rotate coaxially, that is, the length direction of the rotation shaft of the fourth motor is the same as the length direction of the rotation shaft of the control plate 76. When the transfer plate 73 covers the support plate 12 of the discharge cavity 14, the transfer channel 75 cooperates with the placement channel 121 to wrap the activated carbon in the middle.

[0070] The implementation principle of the tail gas purification device based on activated carbon method in this application embodiment is as follows: First, rotate the control rod 55 to rotate the rod body 541, so that the rod body 541 rotates out of the slot 53, opening the sealing plate 51. Then, several new activated carbons are placed one by one into the placement slots 121 of several carrier plates 12 in the feed channel 13, and then the sealing plate 51 is closed. Then, the first motor rotating shaft drives the first sprocket 42 to rotate. The first sprocket 42 drives the sealing plate 41 through the first chain 4, thereby moving the carrier plate 41 in the feed channel 13. Plate 12 is driven into the filter flue 11, so that new activated carbon participates in the filtration of flue gas. At the same time, sealing plate 41 drives the support plate 12, which carries saturated activated carbon, from the filter flue 11 into the discharge chamber 14. Simultaneously, trigger block 24 opens the sealing plate 22, and the air blowing pipe 31 disperses the residual flue gas in the activated carbon. At this time, the sealing plate 41 continues to drive, which will cause the trigger block 24 to disengage from the sealing plate 22, thereby closing the sealing plate 22 and sealing the discharge chamber 14 with the support plate 12.

[0071] If the sealing plate 41 continues to move, the carrier plate 12 will move until it contacts the transfer plate 73. At this time, the activated carbon will be located in the placement groove 121 and the transfer channel 75, that is, the carrier plate 12 and the control plate 76 will sandwich the activated carbon in the middle. If the sealing plate 41 continues to move, the first chain 4 will drive the carrier plate 12 to rotate 180°, and at the same time, the transfer plate 73 will continue to contact the carrier plate 12 and rotate 180° together. After the rotation is completed, the relationship between the carrier plate 12 and the transfer plate 73 changes from the carrier plate 12 being below the transfer plate 73 to the carrier plate 12 being above the transfer plate 73. With the transfer plate 73 at the bottom, it continues to move slightly downwards, allowing the activated carbon to completely detach from the support plate 12. Then, the rotation of the third motor shaft drives the sliding gear 742 to rotate. The rotation of the sliding gear 742, through the engagement of the tooth groove 741, causes the transfer plate 73 to slide out from the discharge chamber 14 onto the conveyor belt 62. Then, the rotation of the fourth motor shaft drives the rotation of the control plate 76 shaft, thereby opening the control plate 76. At this time, the activated carbon falls from the transfer channel 75 onto the conveyor belt 62. Finally, the saturated activated carbon is transported to the desorption tower 6 for regeneration via the conveyor belt 62.

[0072] The process of the tail flue gas purification device based on activated carbon method includes the following steps: 1. Flue gas is introduced into the filter flue 11, and after being adsorbed and filtered by activated carbon on the multi-layer support plate 12, the filter flue 11 outputs the flue gas to the SCR desulfurization system for desulfurization.

[0073] 2. Place the new activated carbon on the support plate 12 inside the feed chamber 13 for later use.

[0074] 3. When it is necessary to replace the saturated activated carbon, the first chain 4 drives the sealing plate 41 to transmit the saturated activated carbon from the filter flue 11 to the discharge chamber 14, and at the same time pulls the saturated activated carbon from the filter flue 13 to the filter flue 11.

[0075] 4. The bearing plate 12 entering the discharge chamber 14 first disperses the flue gas remaining in the activated carbon gap through the cooperation of the trigger block 24 and the air blowing pipe 31, and then waits for the next discharge. At the same time, the air is discharged through the air blowing pipe 31 to prevent the flue gas in the filter flue 11 from entering the discharge chamber 14.

[0076] 5. When the first chain 4 transports the support plate 12 in the discharge cavity 14 to the corner, the transfer plate 73 will cover the activated carbon on the support plate 12. The transfer plate 73 is also transported together with the support plate 12 on the second chain 71 along with the first chain 4 until the activated carbon on the support plate 12 is poured onto the transfer plate 73. The transfer plate 73 is then moved to the conveyor belt 62 by the sliding drive member 74. Then, the activated carbon is dropped onto the conveyor belt 62 by the rotating drive member 77. The saturated activated carbon is then transported to the desorption tower 6 by the conveyor belt 62.

[0077] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tail gas purification device based on activated carbon method, comprising an adsorption tower body (1), wherein a filter flue (11) for supplying flue gas flow is formed within the adsorption tower body (1), and a plurality of activated carbons for filtering flue gas are disposed within the filter flue (11), characterized in that: A support plate (12) is attached and slidably placed inside the filter flue (11). The activated carbon is placed on the support plate (12). The adsorption tower body (1) has a feed chamber (13) for the support plate (12) carrying new activated carbon to enter. The feed chamber (13) is connected to the filter flue (11). A sealing component (2) is provided on the support plate (12). The sealing component (2) is used to prevent the flue gas in the filter flue (11) from entering the feed chamber (13). The adsorption tower body (1) also has a discharge chamber (14) for the support plate (12) carrying saturated activated carbon to discharge. The inner wall of the discharge chamber (14) is provided with a cleaning component (3) to prevent the flue gas in the filter flue (11) from entering the discharge chamber (14); the support plate (12) slides in a sealed manner within the feed chamber (13), and the support plate (12) is provided with a first air hole (21) for the flue gas to pass through. The sealing component (2) includes a sealing plate (22) rotatably disposed on the support plate (12), and the sealing plate (22) is provided with a second air hole (23) for the flue gas to pass through. The first air hole (21) and the second air hole (23) are misaligned, so that the side wall of the sealing plate (22) will block the second air hole (23). The opening of the first air hole (21) is sealed. A torsion spring (221) is provided on the rotating shaft of the sealing plate (22). The torsion spring (221) twists and extends in the direction in which the sealing plate (22) seals the first air hole (21). A trigger block (24) for opening the sealing plate (22) is provided on the inner wall of the filter flue (11). A trigger groove (241) for the trigger block (24) to slide and extend is provided on the inner wall of the filter flue (11). A spring (242) is provided between the inner wall of the trigger groove (241) and the trigger block (24). The spring (242) pops out of the trigger groove (241) along the trigger block (24). The bearing plate (12) is provided with a slot (25) for inserting the trigger block (24), and the slot (25) extends to the sealing plate (22); a first chain (4) is provided inside the adsorption tower body (1), and a number of sealing plates (41) are provided on the first chain (4). The bearing plate (12) is provided on the sealing plates (41), and adjacent sealing plates (41) overlap each other to achieve contact sealing. A first sprocket (42) is rotatably provided inside the adsorption tower body (1) and meshes with the first chain (4). The first sprocket (42) rotates to drive the first chain (4) to drive the transmission.The adsorption tower includes a desorption tower (6) for regenerating activated carbon. The main body (1) of the adsorption tower is provided with a transmission pipe (61) connected to the feed end of the desorption tower (6). The transmission pipe (61) is also connected to the discharge chamber (14). The transmission pipe (61) is provided with a conveyor belt (62) for conveying saturated activated carbon. The main body (1) of the adsorption tower is provided with a feeding assembly (7) for feeding saturated activated carbon from the support plate (12) onto the conveyor belt (62). The feeding assembly (7) includes a second chain (71). The main body (1) of the adsorption tower is provided with a second sprocket (711) that meshes with the second chain (71). The second chain (71) is parallel to the outer ring of the first chain (4). The second chain (71) is provided with a base block (72). A transfer plate (73) is embedded in the base block (72). The transfer plate (73) is used to cover the activated carbon on the support plate (12) of the discharge cavity (14). The support plate (12) in the discharge cavity (14) is flipped by the transmission of the first chain (4) to pour the activated carbon onto the transfer plate (73). The base block (72) is provided with a sliding drive (74) for driving the transfer plate (73) to slide away from the support plate (12) onto the conveyor belt (62). The transfer plate (73) is provided with a transfer channel (75) for the activated carbon to fall onto the conveyor belt (62). The transfer plate (73) is rotatably provided with a control plate (76) for sealing the opening of the transfer channel (75). The control plate (76) is also used to support the activated carbon. The transfer plate (73) is provided with a rotation drive (77) for controlling the rotation of the control plate (76).

2. The tail gas purification device based on activated carbon method according to claim 1, characterized in that: The cleaning component (3) includes an air blowing pipe (31) embedded in the inner wall of the discharge chamber (14), with the air outlet of the air blowing pipe (31) facing the junction of the discharge chamber (14) and the filter flue (11). The trigger groove (241) is also opened on the inner wall of the discharge chamber (14) between the air blowing pipe (31) and the filter flue (11).

3. The tail gas purification device based on activated carbon method according to claim 1, characterized in that: The adsorption tower body (1) is provided with a feed channel (5), which is connected to the feed cavity (13). The feed channel (5) is used to feed activated carbon to the support plate (12). The adsorption tower body (1) is rotatably connected with a sealing plate (51) for covering and sealing the opening of the feed channel (5). The sealing plate (51) is provided with a control groove (52). The inner wall of the feed channel (5) is provided with a slot (53). A snap-fit ​​rod (54) is rotatably provided in the control groove (52) for rotating into and snapping into the slot (53). A control rod (55) is provided on the snap-fit ​​rod (54) that penetrates the side wall of the sealing plate (51) to the outside. Rotating the control rod (55) is used to control the rotation of the snap-fit ​​rod (54).

4. A process for using the tail gas purification device based on activated carbon method according to claim 1, characterized in that, Includes the following steps:

1. Flue gas is introduced into the filter flue (11), and after being adsorbed and filtered by activated carbon on multiple layers of the support plate (12), the filter flue (11) continues to desulfurize the flue gas; 2. New activated carbon is placed on the support plate (12) in the feed chamber (13); 3. When it is necessary to replace the saturated activated carbon, the support plate (12) carrying the saturated activated carbon is transferred from the filter flue (11) to the discharge chamber (14) by the first chain (4), and at the same time, the support plate (12) in the feed chamber (13) is pulled into the filter flue (11); 4. The first chain (4) moves the discharge chamber (11) When the support plate (12) in 14) is transported to the corner, the transfer plate (73) will cover the activated carbon on the support plate (12), and the transfer plate (73) will be transported together with the support plate (12) on the second chain (71) along with the first chain (4) until the activated carbon on the support plate (12) is poured onto the transfer plate (73). The transfer plate (73) will then be moved to the conveyor belt (62) by the sliding drive (74), and then the activated carbon will fall onto the conveyor belt (62) by the rotating drive (77). The saturated activated carbon will be transported to the desorption tower (6) by the conveyor belt (62).

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