A counterflow regenerative device with flue gas secondary combustion purification system

Abstract

The present application relates to a kind of with flue gas secondary combustion purification system counterflow regeneration equipment technical field, specifically, it is related to a kind of with flue gas secondary combustion purification system counterflow regeneration equipment, including heating pipe, the heating pipe one end is fixedly connected with the flame gun of gas heating, the flame gun is placed with the dust removal device of the exhaust gas generated by work filtering treatment in heating pipe far side, heating pipe far from the flame gun one end is fixedly connected with the pipe frame of receiving, the pipe frame far from the heating pipe one side is connected with the drying and stirring subassembly of increasing the drying effect to material. By the above technical scheme, the energy utilization efficiency of asphalt regeneration equipment can be improved, the waste gas treatment cost is reduced, so as to achieve the purpose of energy saving and emission reduction, and the overall performance and economic benefits of equipment are improved.

Description

Technical Field

[0001] This invention relates to the technical field of counter-current regeneration equipment with a flue gas secondary combustion purification system, specifically, to a counter-current regeneration equipment with a flue gas secondary combustion purification system. Background Technology

[0002] Asphalt recycling equipment can recycle asphalt pavements, saving a significant amount of raw materials such as asphalt and aggregates, while also aiding in waste disposal and environmental protection. The equipment recycles, heats, crushes, and screens old asphalt pavement mixtures, then remixes them with recycling agents, new asphalt, and new aggregates in a specific ratio to create a new mixture, which is then repaved onto the road surface. Current asphalt heating treatment typically involves heating the asphalt material by passing gas through a high-temperature flame.

[0003] Existing asphalt recycling equipment suffers from the following technical problems: Traditional hot airflow uses a straight-cylinder flow pattern, which results in insufficient contact time between the airflow and the tumbling material, thus failing to adequately bake and heat the material. Simultaneously, a large amount of hot airflow is discharged from the other side of the pipe before sufficient contact with the material, causing unnecessary energy loss. Furthermore, the contact between the hot airflow and the material generates a large amount of waste gas, which requires decomposition in a high-temperature, aerobic environment before being released. Treating and discharging these waste gases requires additional secondary processing, increasing operating costs. Summary of the Invention

[0004] This invention proposes a counter-current recycling device with a flue gas secondary combustion purification system, which can improve the energy utilization efficiency of asphalt recycling equipment, reduce the cost of waste gas treatment, thereby achieving the purpose of energy conservation and emission reduction, and improving the overall performance and economic benefits of the equipment.

[0005] The technical solution of the present invention is as follows:

[0006] A counter-current regeneration device with a flue gas secondary combustion purification system includes a heating tube. One end of the heating tube is fixedly connected to a burner for heating the gas. A dust removal device for filtering the generated exhaust gas is placed on the side of the burner away from the heating tube. A receiving pipe frame is fixedly connected to the end of the heating tube away from the burner. A drying and stirring assembly to enhance the drying effect on the material is connected to the receiving pipe frame away from the heating tube. A purification assembly that works in conjunction with the drying and stirring assembly to perform secondary combustion purification on the exhaust gas generated by the drying and stirring assembly is connected between the drying and stirring assembly and the heating tube. A discharge port for discharging the dried material is connected to the side of the drying and stirring assembly away from the receiving pipe frame. The discharge hopper is used to transfer gas. The discharge hopper is connected to the drying and mixing assembly by an inlet pipe that puts the material into the drying and mixing assembly. The inlet pipe is fixedly connected to the discharge hopper. An exhaust gas return pipe for transporting exhaust gas is fixedly connected to the upper side of the discharge hopper. An regulating damper is fixedly connected to the end of the exhaust gas return pipe away from the discharge hopper. The other side of the regulating damper is fixedly connected to the air inlet of the dust removal device. A return branch pipe is fixedly connected to the column surface of the exhaust gas return pipe. A blower is fixedly connected to the end of the return branch pipe near the heating tube. The air outlet of the blower is fixedly connected to the heating tube. An outflow pipe that injects oxygen-laden air from the outside into the heating tube with the blower is fixedly connected to the column surface of the return branch pipe.

[0007] The drying and stirring assembly includes an air chamber, which is rotatably connected to one side of the discharge chamber. A drying inner liner is fixedly connected inside the air chamber. A driving assembly for driving the air chamber to rotate is connected to the outside of the air chamber. A partition is fixedly connected to the inner wall of the drying inner liner, and a stirring column is rotatably connected to the partition.

[0008] The purification assembly includes a lifting plate, a lifting plate, and pressure blocks. A top column is detachably fixedly connected to the lifting plate, and the round head of the top column abuts against the surface of the lifting plate. The lifting plate has a groove. Each pressure block abuts against the inner wall of the air chamber and the outer wall of the drying inner liner. A sealing plate for treating exhaust gas is fixedly connected to the side of the lifting plate away from the top column. The lifting plate is fixedly connected to the side of the partition away from the stirring column. The lifting plate is rotatably connected to the end of the drying inner liner facing the heating tube. A retaining ring is fixedly connected to the lifting plate. Several retaining plates slide against the inner groove surface of the retaining ring. Each retaining plate is fixedly connected to a pressure column on the side away from the retaining ring. Each pressure column is fixedly connected to a pressure block away from the retaining plate.

[0009] The sealing plate has several air outlet grooves and a second air outlet hole.

[0010] The heating tube has a first vent hole, and a vent pipe is fixedly connected to the outer wall of the heating tube. The vent pipe is connected to the first vent hole.

[0011] Furthermore, a spiral plate is fixedly connected to the inner wall of the drying liner, and several drying holes with similar trajectories to the outer side of the spiral plate are opened on one side of the spiral plate. Multiple stirring shovels for increasing the drying effect of the material are fixedly connected to the stirring column, and the distance between the outer side of the stirring shovel and the inner wall of the drying liner is greater than the height of the spiral plate.

[0012] Furthermore, the drive assembly includes a motor, which is fixedly connected to the side of the discharge hopper facing the air chamber. A transmission gear is fixedly connected to the drive shaft of the motor, and the transmission gear meshes with a gear ring, which is sleeved on the air chamber and fixedly connected to the air chamber.

[0013] Furthermore, the diameter of the first air outlet is the same as that of the second air outlet, and an air injection port is provided on the side of the heating tube near the flamethrower. The air outlet of the blower and the air injection port are detachably and fixedly connected.

[0014] Furthermore, a support frame for supporting the heating tube is abutted against the lower side of the heating tube.

[0015] The beneficial effects of this invention are as follows:

[0016] In this invention, the following aspects are addressed: Improving material drying effect: The drying and stirring component provides uniform baking to the material, enhancing its baking effect and ensuring quality. Rapid exhaust: The drying and stirring component ensures the rapid discharge of exhaust gas, allowing subsequent high-temperature airflow to quickly bake the material again. Secondary combustion purification of exhaust gas: A purification component connected between the drying and stirring component and the heating tube purifies the exhaust gas generated by the drying and stirring component through secondary combustion, achieving the purpose of decomposing organic matter and protecting the environment. Waste gas recovery and utilization: The waste gas return pipe is connected to a regulating damper. When the purification component blocks the hot airflow, the exhaust gas generated by the drying and stirring component is drawn in along with outside air and injected into the heating tube for reaction, achieving waste gas recovery and utilization. Cleaning the waste gas return pipe: A blower absorbs and settles the accumulated dust in the waste gas return pipe, keeping it clean. Waste gas purification treatment: The regulating damper is connected to a dust removal device, ensuring the waste gas undergoes dust removal treatment, reducing environmental pollution. In summary, the counter-current regeneration equipment proposed in this embodiment effectively improves the drying effect of materials and protects the environment through drying, waste gas purification, and recycling measures. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is an isometric schematic diagram of the present invention;

[0019] Figure 2 This is a partial oblique axis schematic diagram of the present invention;

[0020] Figure 3 This is a partial half-section oblique axis schematic diagram of the present invention;

[0021] Figure 4 is a partially enlarged half-section schematic diagram of the present invention;

[0022] Figure 5 This is a half-section enlarged schematic diagram of the drying and stirring assembly of the present invention;

[0023] Figure 6 This is a partial half-section equiaxed schematic diagram of the purification component of the present invention;

[0024] Figure 7 This is an enlarged isometric schematic diagram of the sealing disc of the component of the present invention.

[0025] In the diagram: 11. Discharge hopper; 111. Feed pipe; 12. Waste gas return pipe; 121. Return branch pipe; 122. Outflow pipe; 13. Receiving pipe frame; 14. Air outlet pipe; 15. Heating pipe; 151. First air outlet; 152. Air injection port; 16. Flamethrower; 17. Dust removal device; 18. Regulating damper; 19. Blower; 110. Support frame; 2. Drying and stirring assembly; 21. Drying inner tank; 211. Drying hole ; 22. Stirring column; 23. Stirring shovel; 24. Baffle; 25. Spiral plate; 26. Air chamber; 261. Sealing groove; 3. Purification component; 31. Lifting plate; 311. Groove; 32. Snap ring; 33. Lifting plate; 34. Sealing plate; 341. Air outlet groove; 342. Second air outlet; 35. Top column; 41. Pressure block; 42. Pressure column; 43. Chuck; 51. Motor; 52. Gear ring; 53. Transmission gear. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figures 1-7As shown, this embodiment proposes a counter-current regeneration device with a secondary combustion purification system for flue gas. It includes a heating pipe 15, one end of which is fixedly connected to a burner 16 for heating the gas. A dust removal device 17, which filters the generated exhaust gas, is placed on the side of the burner 16 away from the heating pipe 15. The end of the heating pipe 15 away from the burner 16 is fixedly connected to a receiving pipe frame 13. The side of the receiving pipe frame 13 away from the heating pipe 15 is connected to a drying and stirring assembly 2, which enhances the drying effect on the material. The drying and stirring assembly 2 can increase the baking effect on all surfaces of the material, while also allowing the exhaust gas generated by the material to be quickly discharged, enabling subsequent high-temperature airflow to quickly bake the material again, ensuring the baking effect. A purification assembly 3, which performs secondary combustion purification on the exhaust gas generated by the drying and stirring assembly 2 in conjunction with its operation, is connected to... Between the drying and stirring assembly 2 and the heating tube 15, the purification assembly 3 operates in two states: first, it sends hot air into the drying and stirring assembly 2 to ensure the baking effect of the material; second, it cuts off the hot air and then performs secondary combustion purification on the exhaust gas generated in the drying and stirring assembly 2. The hot air and the exhaust gas generated by the material can undergo a pyrolysis reaction with oxygen at high temperature, thereby decomposing the organic matter in the exhaust gas before it is discharged, thus achieving the effect of protecting the environment. The side of the drying and stirring assembly 2 away from the receiving pipe frame 13 is connected to the discharge hopper 11, which discharges the dried material and transfers the gas generated during discharge. The feed pipe 111, which puts the material into the drying and stirring assembly 2, is connected between the discharge hopper 11 and the drying and stirring assembly 2. The feed pipe 111 is fixedly connected to the discharge hopper 11. The upper side of the discharge hopper 11 is fixedly connected to the exhaust gas return pipe 12, which transports the exhaust gas.

[0029] To further explain, the end of the exhaust gas return pipe 12 furthest from the discharge hopper 11 is fixedly connected to the regulating damper 18. The regulating damper 18 is linked with the purification component 3. After the purification component 3 blocks the hot airflow, it also blocks the exhaust gas generated by the drying and stirring component 2. This exhaust gas, along with the outside air, is drawn into the air intake of the blower 19 and injected into the heating pipe 15 for reaction. After the burner 16 stops working, the blower 19 absorbs and settles the accumulated ash in the exhaust gas return pipe 12, making... The exhaust gas return pipe 12 is kept clean so that the exhaust gas comes into contact with the dust removal device 17. The other side of the regulating damper 18 is fixedly connected to the air inlet of the dust removal device 17. The return branch pipe 121 is fixedly connected to the cylindrical surface of the exhaust gas return pipe 12. The end of the return branch pipe 121 near the heating pipe 15 is fixedly connected to the blower 19. The air outlet of the blower 19 is fixedly connected to the heating pipe 15. The outflow pipe 122, which injects oxygenated air into the heating pipe 15 with the blower 19, is fixedly connected to the cylindrical surface of the return branch pipe 121.

[0030] like Figures 3-7 As shown, the drying and stirring assembly 2 includes an air chamber 26, which is rotatably connected to one side of the discharge chamber 11. A drying inner liner 21 is fixedly connected inside the air chamber 26, and a spiral plate 25 is fixedly connected to the inner wall of the drying inner liner 21. This allows the material to fall onto the inner wall of the drying inner liner 21 under gravity. As the drying inner liner 21 rotates, the spiral plate 25 continuously pushes the material towards the discharge chamber 11, thus enabling the material to move and be produced stably under the drying effect. Several drying holes 211 with similar trajectories to the outer edge of the spiral plate 25 are opened on one side of the spiral plate 25. Hot airflow is injected into the drying inner liner 21 through the drying holes 211. Some of the hot airflow can be ejected upwards from the bottom of the material, lifting some of the material and ensuring that the outer surface of the material is baked, thus increasing the baking effect. Simultaneously, as the drying inner liner 21 rotates, the hot airflow ejected from the drying holes 211 also carries a certain amount of heat. The rotation direction guides the exhaust gas generated after drying in the drying chamber 21, allowing it to move quickly towards the discharge hopper 11. The subsequent hot airflow continuously bakes the material, increasing the drying effect. The partition 24 is fixedly connected to the inner wall of the drying chamber 21, and the stirring column 22 is rotatably connected to the partition 24. Multiple stirring shovels 23, used to enhance the drying effect, are fixedly connected to the stirring column 22. The distance between the outer side of the stirring shovel 23 and the inner wall of the drying chamber 21 is greater than the height of the spiral plate 25, preventing the stirring shovel 23 from colliding with the spiral plate 25. The outer side of the air chamber 26 is connected to the drive assembly used to drive the air chamber 26 to rotate. The stirring shovel 23 removes some of the material adhering to the drying chamber 21 and can also level the material piled higher than the height of the spiral plate 25, ensuring that all materials are effectively baked and increasing the baking effect.

[0031] like Figure 2 and Figure 3 As shown, the drive assembly includes a motor 51, which is fixedly connected to the discharge hopper 11 on the side facing the air chamber 26. The drive shaft of the motor 51 is fixedly connected to the transmission gear 53, which meshes with the gear ring 52. The gear ring 52 is fitted on the air chamber 26 and fixedly connected to it. By controlling the speed of the motor 51, the speed of the drying inner liner 21 is directly controlled, thereby adjusting the drying effect on the material inside the drying inner liner 21.

[0032] like Figures 3-7As shown, the purification component 3 includes a lifting plate 31 and a lifting plate 33. The lifting plate 31 is fixedly connected to the side of the partition 24 away from the stirring column 22. The lifting plate 33 is rotatably connected to the end of the drying inner liner 21 facing the heating tube 15. The top column 35 is detachably fixedly connected to the lifting plate 33, and the round head of the top column 35 abuts against the surface of the lifting plate 31. The retaining ring 32 is fixedly connected to the lifting plate 33, and the inner groove surface of the retaining ring 32 slides against several retaining plates 43. The side of each retaining plate 43 away from the retaining ring 32 is fixedly connected to each pressure column 42, and the end of each pressure column 42 away from the retaining plate 43 is fixedly connected to each pressure block 41. Each pressure block 41 is in contact with the air... The inner wall of the chamber 26 abuts against the outer wall of the drying inner liner 21. The sealing plate 34, which treats the exhaust gas, is fixedly connected to the side of the lifting plate 33 away from the top column 35. Under the action of the high-pressure hot air flow in the heating tube 15, the lifting plate 33 will move towards the air chamber 26 under pressure, so that the round head of the top column 35 will be tightly abutted against the surface of the lifting plate 31. The lifting plate 31 rotates with the rotation of the partition plate 24, thereby causing the lifting plate 33 to move back and forth. That is, through the abutment between the top column 35 and the lifting plate 31, the rotation of the lifting plate 31 drives the components connected to the lifting plate 33 to move, thereby realizing two working states.

[0033] like Figures 4-7 As shown, several venting grooves 341 are formed on the sealing plate 34, and the second venting hole 342 is formed on the sealing plate 34. When the sealing plate 34 slides towards the heating tube 15, the venting grooves 341 will gradually come into contact with the inner wall of the heating tube 15, and finally the venting grooves 341 will be blocked by the inner wall of the heating tube 15, so that the heating tube 15 forms a separate cavity. At the same time, after the second venting hole 342 reaches the position, the gas reacted in the separate cavity can be continuously discharged from the second venting hole 342.

[0034] To further explain, when the sealing plate 34 slides in the opposite direction to the heating tube 15, the second vent 342 is cut off from the first vent 151. As the vent groove 341 gradually separates from the inner wall of the heating tube 15, the high-temperature gas in the heating tube 15 can only be discharged from the vent groove 341, keeping the cavity of the heating tube 15 connected to the cavity in the air chamber 26, so that the hot airflow can heat and bake the cavity in the air chamber 26.

[0035] like Figures 4-7As shown, the first vent 151 is located on the heating tube 15, and the vent pipe 14 is fixedly connected to the outer wall of the heating tube 15. The vent pipe 14 communicates with the first vent 151, and the diameter of the first vent 151 is the same as the diameter of the second vent 342. The air inlet 152 is located on the side of the heating tube 15 near the flamethrower 16. The air outlet of the blower 19 is detachably and fixedly connected to the air inlet 152, so that the sealing plate 34 moves to the second vent 342 and aligns with the first vent 151. When the circuit is open, it indicates that the cavity between the heating tube 15 and the air chamber 26 has been cut off. The exhaust gas in the heating tube 15 is injected into the heating tube 15 along with the outside air from the air inlet 152. Then, under the flame of the burner 16, this part of the exhaust gas is mixed with oxygen and undergoes a pyrolysis reaction under high temperature combustion. Then, the gas after the pyrolysis reaction is discharged from the first air outlet 151 and discharged through the air outlet pipe 14 into the filter device connected to the air outlet pipe 14, thereby increasing the environmental friendliness of the device.

[0036] like Figure 6 As shown, several closed slots 261 are opened on the gas chamber 26, and each pressure block 41 abuts against the inner wall of each closed slot 261. When the pressure block 41 abuts against the inner wall of the closed slot 261, the hot air flow in the heating tube 15 cannot flow through the closed slot 261, thereby causing this part of the hot air flow carrying the waste gas to mix with oxygen, and then undergo a pyrolysis reaction under the flame reaction of the flamethrower 16, thereby purifying the waste gas through secondary combustion to achieve the purpose of environmental protection.

[0037] like Figure 1 and Figures 5-6 As shown, the groove 311 is formed on the lifting plate 31. Under the high pressure inside the heating tube 15, the top column 35 will continuously abut against the outer surface of the lifting plate 31. When the top column 35 slides into the groove 311, the lifting plate 33 will move a certain distance towards the lifting plate 31. When the top column 35 moves out of the groove 311, the lifting plate 33 will return to its original position. The lifting plate 33 will move back and forth under the rotation of the lifting plate 31, so that the cavity inside the heating tube 15 and the cavity inside the air chamber 26 are repeatedly connected and disconnected. The lower side of the heating tube 15 abuts against the support frame 110 used to support the heating tube 15.

[0038] The working principle of this embodiment is as follows:

[0039] Start the regulating damper 18, and the blower 19 draws the air outside the outflow pipe 122 and the gas in the exhaust gas return pipe 12 into the heating pipe 15. The air comes into contact with the high-temperature flame of the flamethrower 16 and is heated by the flame to become a hot airflow. As the blower 19 continuously draws in air, a high-pressure hot airflow is formed in the heating pipe 15. This high-pressure hot airflow presses the lifting plate 33 to the side away from the flamethrower 16. The top column 35 abuts against the lifting plate 31. The motor 51 drives the drying inner liner 21 to rotate, which in turn drives the lifting plate 31 to rotate. When the top column 35 moves into the groove 311, it can move the lifting plate 33 towards the partition 24. When the top column 35 moves out of the groove 311, it can move the lifting plate 33 towards the heating pipe 15. The two directions of movement of the lifting plate 33 represent two working states.

[0040] Drying state: When the lifting plate 33 moves towards the partition plate 24, the air outlet groove 341 separates from the inner wall of the heating pipe 15, allowing the hot airflow in the heating pipe 15 to move into the receiving pipe frame 13. Immediately afterwards, the pressure block 41 separates from the sealing groove 261, connecting the cavity inside the air chamber 26 with the cavity inside the receiving pipe frame 13. That is, the hot airflow in the heating pipe 15 can flow into the cavity inside the air chamber 26, and the hot airflow can then enter the drying inner chamber 21 through several drying holes 211. The hot airflow ejected from the drying holes 211 on the lower side of some materials can turn the materials over. The rotating drying chamber 21 blows hot air from other directions directly onto the material, allowing the hot air to fully bake the material. At the same time, the rotating drying chamber 21 carries the hot air in a certain direction of rotation, which in turn creates a swirling motion of the hot air. This allows the exhaust gas generated during baking to be quickly discharged from the drying chamber 21. The stirring shovel 23 flattens the accumulated material, preventing excessive material accumulation and ensuring that the material in the inner layer is not completely baked, thus increasing the baking effect. The rotation of the drying chamber 21 also moves the material through the spiral plate 25, allowing the baked material to be gradually discharged.

[0041] Secondary combustion purification of exhaust gas: When the lifting plate 33 moves towards the heating pipe 15, the pressure block 41 gradually comes into contact with the sealing groove 261, cutting off the cavity in the gas chamber 26 from the cavity in the receiving pipe frame 13. At the same time, when the sealing plate 34 moves, the exhaust groove 341 is gradually blocked by the inner wall of the heating pipe 15, preventing the hot air flow in the heating pipe 15 from passing through the exhaust groove 341. The first exhaust hole 151 and the second exhaust hole 342 gradually connect. The blower 19 extracts the exhaust gas stored in the discharge bin 11 through the exhaust gas return pipe 12, so that this part of the exhaust gas and air will come into contact with the flame. The exhaust gas decomposes under high temperature combustion with oxygen, thus purifying the exhaust gas. The purified gas is discharged from the exhaust pipe 14. The outside of the exhaust pipe 14 is connected to another dust removal device 17, so that the purified gas is further dusted, thereby protecting the environment.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A counter-current regeneration device with a flue gas secondary combustion purification system, comprising a heating tube (15), one end of which is fixedly connected to a flamethrower (16) for heating gas, a dust removal device (17) for filtering the exhaust gas generated during operation is placed on the side of the flamethrower (16) away from the heating tube (15), and a pipe support frame (13) is fixedly connected to the end of the heating tube (15) away from the flamethrower (16), characterized in that, The receiving pipe frame (13) is connected to a drying and stirring assembly (2) on the side away from the heating pipe (15) to enhance the drying effect on the material. A purification assembly (3) is connected between the drying and stirring assembly (2) and the heating pipe (15) to perform secondary combustion purification of the exhaust gas generated by the drying and stirring assembly (2). A discharge hopper (11) is connected to the side of the drying and stirring assembly (2) away from the receiving pipe frame (13) to discharge the dried material and transfer the gas generated during discharge. An inlet pipe (111) is connected between the discharge hopper (111) and the drying and stirring assembly (2) to put the material into the drying and stirring assembly (2). The inlet pipe (111) is fixedly connected to the discharge hopper (11). A waste gas return pipe (12) for transporting waste gas is fixedly connected to the upper side of the discharge hopper (11). An regulating damper (18) is fixedly connected to one end of the waste gas return pipe (12) away from the discharge hopper (11). The other side of the regulating damper (18) is fixedly connected to the air inlet of the dust removal device (17). A return branch pipe (121) is fixedly connected to the cylindrical surface of the waste gas return pipe (12). A blower (19) is fixedly connected to one end of the return branch pipe (121) near the heating pipe (15). The air outlet of the blower (19) is fixedly connected to the heating pipe (15). An outflow pipe (122) for injecting oxygen-laden air from the outside into the heating pipe (15) along with the blower (19) is fixedly connected to the cylindrical surface of the return branch pipe (121). The drying and stirring assembly (2) includes an air chamber (26), which is rotatably connected to one side of the discharge chamber (11). A drying inner liner (21) is fixedly connected inside the air chamber (26). A driving assembly for driving the air chamber (26) to rotate is connected to the outside of the air chamber (26). A partition (24) is fixedly connected to the inner wall of the drying inner liner (21), and a stirring column (22) is rotatably connected to the partition (24). The purification component (3) includes a lifting plate (31), a lifting plate (33), and pressure blocks (41). A top column (35) is detachably fixedly connected to the lifting plate (33). The round head of the top column (35) abuts against the surface of the lifting plate (31). A groove (311) is provided on the lifting plate (31). Each pressure block (41) abuts against the inner wall of the air chamber (26) and the outer wall of the drying inner liner (21). A sealing plate (34) for treating exhaust gas is fixedly connected to the side of the lifting plate (33) away from the top column (35). The lifting plate (31) is fixedly connected to the side of the partition plate (24) away from the stirring column (22). The lifting plate (33) is rotatably connected to the end of the drying inner liner (21) facing the heating tube (15). A retaining ring (32) is fixedly connected to the lifting plate (33). Several chucks (43) slide against the inner groove surface of the retaining ring (32). A pressure column (42) is fixedly connected to the side of each chuck (43) away from the retaining ring (32). Each pressure column (42) is fixedly connected to the pressure block (41) away from the chuck (43). The sealing plate (34) is provided with a plurality of air outlet grooves (341) and a second air outlet hole (342). The heating tube (15) has a first vent hole (151) and a vent pipe (14) is fixedly connected to the outer wall of the heating tube (15). The vent pipe (14) is connected to the first vent hole (151).

2. The counter-current regeneration device with a flue gas secondary combustion purification system according to claim 1, characterized in that, The inner wall of the drying liner (21) is spirally fixedly connected to a spiral plate (25). A number of drying holes (211) with similar trajectories to the outer side of the spiral plate (25) are opened on one side of the spiral plate (25). A number of stirring shovels (23) for increasing the drying effect of the material are fixedly connected to the stirring column (22). The distance between the outer side of the stirring shovel (23) and the inner wall of the drying liner (21) is greater than the height of the spiral plate (25).

3. The counter-current regeneration device with a flue gas secondary combustion purification system according to claim 2, characterized in that, The drive assembly includes a motor (51), which is fixedly connected to the side of the discharge hopper (11) facing the air chamber (26). A transmission gear (53) is fixedly connected to the drive shaft of the motor (51), and a gear ring (52) is meshed with the transmission gear (53). The gear ring (52) is sleeved on the air chamber (26) and fixedly connected to the air chamber (26).

4. The counter-current regeneration device with a flue gas secondary combustion purification system according to claim 1, characterized in that, The diameter of the first air outlet (151) is the same as that of the second air outlet (342). The heating tube (15) has an air injection port (152) on the side near the flamethrower (16). The air outlet of the blower (19) and the air injection port (152) are detachably and fixedly connected.

5. The counter-current regeneration device with a flue gas secondary combustion purification system according to claim 1, characterized in that, The heating tube (15) is abutted on the lower side by a support frame (110) for supporting the heating tube (15).

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