A carbon dioxide capture device

Abstract

The present invention relates to the technical field of carbon dioxide capture, and discloses a carbon dioxide capture device, including a capture tank, and an air intake hood fixedly mounted on the front and rear side walls of the capture tank, an air intake fan fixedly mounted on the side wall of the air intake hood, the inner cavity of the capture tank is filled with ammonia liquid, and also includes a threaded rod, the threaded rod is rotatably mounted on the inner cavity side wall of the capture tank, and a movable seat is threadedly mounted in the middle of the side wall of the threaded rod; a mixing component, the mixing component is arranged on the side wall of the movable seat; a driving component, the driving component is arranged on the front side wall of the capture tank; and a liquid dosing component is arranged on the rear side wall of the capture tank. The invention achieves sufficient mixing and stirring of the ammonia liquid in the capture tank through the cooperation of the mixing component and the driving component, so as to ensure the balance of the ammonia concentration in various places in the capture tank, thereby effectively improving the efficiency and quality of the entire device in absorbing carbon dioxide in the air.

Description

Technical Field

[0001] The present invention relates to the field of carbon dioxide capture, and in particular to a carbon dioxide capture device. Background Art

[0002] The increase in carbon dioxide content in the atmosphere is the main cause of global warming, which is also changing (affecting) people's lifestyles and bringing more and more problems. Therefore, the treatment of carbon dioxide in the atmosphere has received more and more attention.

[0003] Among them, the largest source of urban carbon dioxide emissions comes from cars. Oil-powered cars release a large amount of carbon dioxide by burning oil during driving, especially on streets, fast lanes, highways and other roads. The main way to deal with carbon dioxide in the existing technology is to capture carbon dioxide first and then fix it. Among them, the main ways to capture carbon dioxide are capture before combustion, oxygen-enriched combustion and capture after combustion. Most carbon dioxide capture devices are large in size and have many pumps, resulting in high equipment failure rates and operating costs. They can only capture carbon dioxide for specific emission scenarios. The existing equipment cannot meet the needs of carbon dioxide treatment in various places. The second is to use chemical absorption to capture carbon dioxide in the air, that is, using amine solution to absorb carbon dioxide. However, when the above equipment is in use, as too much carbon dioxide is captured, the concentration of ammonia solution in the cell will vary, and the absorption rate of carbon dioxide will also be reduced, which has certain defects.

[0004] Therefore, there is an urgent need for a carbon dioxide capture device to solve such problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The object of the present invention is to provide a carbon dioxide capture device to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a carbon dioxide capture device, comprising a capture tank, and an air intake hood fixedly mounted on the front and rear side walls of the capture tank, an air intake fan fixedly mounted on the side wall of the air intake hood, a filter plate placed on the upper end surface of the capture tank, an inner cavity of the capture tank filled with ammonia liquid, and further comprising:

[0009] A threaded rod, the threaded rod is rotatably mounted on the inner cavity side wall of the capture tank, and a movable seat is threadedly mounted in the middle of the side wall of the threaded rod;

[0010] A mixing assembly, the mixing assembly is arranged on the side wall of the movable seat, and the mixing assembly is used to evenly mix the ammonia solution in the capture tank;

[0011] A driving assembly, the driving assembly being arranged on the front side wall of the capture tank and being used to rotate the threaded rod;

[0012] A liquid dosing component is arranged on the rear side wall of the capture tank and is used for adding high-concentration ammonia water into the capture tank.

[0013] Preferably, the mixing assembly includes an annular groove opened on the side wall of the movable seat, and a snap-fit ​​seat slidably installed in the inner cavity of the annular groove, a connecting rod is fixedly installed on the side wall of the snap-fit ​​seat, a mixing plate is fixedly installed on the side wall of the connecting rod, and an activated carbon rod is detachably installed in the inner cavity of the mixing plate.

[0014] Preferably, limit rods are fixedly installed on the left and right sides of the inner cavity side walls of the collection tank, the limit rods are slidably connected to the movable seat, several groups of snap-fit ​​seats are arranged in the inner cavity of the annular groove, connecting rings are fixedly installed between the several groups of snap-fit ​​seats, several groups of through holes are opened on the side walls of the mixing plate, and the mixing plate is inclined on the side walls of the connecting rod.

[0015] Preferably, a receiving groove is provided on the side wall of the mixing plate, a return spring is fixedly installed on the bottom surface of the inner cavity of the receiving groove, a limit block is fixedly installed on the end of the side wall of the return spring, the limit block slides in the inner cavity of the receiving groove, the upper and lower end surfaces of the limit block are inclined, and grooves corresponding to the limit blocks are provided on the side walls at both ends of the activated carbon rod.

[0016] Preferably, the inner cavity of the air inlet hood is fixedly equipped with an outlet pipe extending to the inner cavity of the capture tank, the inner cavity of the outlet pipe is provided with a one-way air valve that exports to the outside, the bottom surface of the inner cavity of the capture tank is fixedly equipped with an electric heater, and the filter plate is made of porous silica.

[0017] Preferably, the driving assembly includes a support plate fixedly mounted on the front side wall of the capture tank, and a transmission worm rotatably mounted in the inner cavity of the support plate. The front side wall of the capture tank is fixedly mounted with a driving motor through a frame, and the front end surface of the threaded rod is fixedly mounted with a transmission worm gear.

[0018] Preferably, the output shaft end of the drive motor is fixedly connected to the transmission worm, the transmission worm is meshingly connected to the transmission worm wheel, and the model of the drive motor is 1FK7083.

[0019] Preferably, the liquid injection assembly includes a cam block fixedly mounted on the rear end face of the threaded rod, the left and right sides of the upper portion of the rear end face of the capture tank are fixedly mounted on a liquid storage box, a pressure storage box is fixedly mounted on the lower end face of the liquid storage box through a liquid inlet pipe, a piston plate is slidably mounted on the inner cavity of the pressure storage box, a push rod is fixedly mounted on the lower end face of the piston plate, and a connecting spring is wound around the side wall of the push rod.

[0020] Preferably, the push rod is connected through the pressure storage box, the two ends of the connecting spring are fixedly connected to the inner wall of the piston plate and the bottom surface of the inner cavity of the pressure storage box respectively, and the cam block is in contact with the side wall of the push rod.

[0021] Preferably, both ends of the liquid inlet pipe are respectively connected to the liquid storage box and the pressure accumulation box, the inner cavity of the liquid inlet pipe is provided with a one-way water valve whose outlet is toward the inner cavity of the pressure accumulation box, a liquid outlet pipe is fixedly installed on the side wall of the pressure accumulation box, the end of the liquid outlet pipe extends to the inner cavity of the capture tank, the inner cavity of the liquid outlet pipe is provided with a one-way water valve whose outlet is toward the inner cavity of the capture tank, and the inner cavity of the liquid storage box is filled with high-concentration ammonia aqueous solution.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the invention, workers can start the air intake fan installed on the side wall of the air intake hood to allow external air to enter the inner cavity of the air intake hood. The ammonia liquid inside the capture tank can absorb the carbon dioxide gas in the air. At the same time, workers can start the driving motor on the front side wall of the liquid storage tank to rotate the transmission worm. Under the cooperation of the transmission worm gear and the threaded rod, the movable seat can move back and forth on the side wall of the threaded rod. At this time, under the constraint of the connecting ring, multiple mixing plates will rotate along the circumference of the movable seat to stir the ammonia liquid in the capture tank, thereby ensuring the balance of ammonia concentration in various places in the capture tank, thereby effectively improving the efficiency and quality of the entire equipment in absorbing carbon dioxide in the air.

[0024] 2. In the invention, when the threaded rod rotates, the cam block fixed at its rear end will also rotate. Under the action of the connecting spring, the push rod will fit firmly with the side wall of the cam block. At this time, along with the continuous rotation of the cam block, the push rod can drive the piston plate to move back and forth up and down in the inner cavity of the pressure accumulator box. When the piston plate moves toward the upper part of the inner cavity of the pressure accumulator box, the volume of the upper cavity of the pressure accumulator box continues to increase, and the pressure of the ammonia liquid in the upper cavity rises sharply. The high-concentration ammonia liquid inside can be discharged into the capture tank through the liquid outlet pipe. After mixing under the cooperation of the driving component and the mixing component, the concentration of the ammonia liquid inside the capture tank can be increased to ensure that the entire device has good quality for carbon dioxide capture. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a rear view schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of a partial structure of the present invention from a top view;

[0028] Figure 4 It is a front view cross-sectional structural schematic diagram of the present invention;

[0029] Figure 5 It is a schematic diagram showing the internal structure of the capture tank of the present invention;

[0030] Figure 6 It is a cross-sectional structural schematic diagram of the mobile seat of the present invention;

[0031] Figure 7 It is a cross-sectional structural schematic diagram of the mixing plate of the present invention;

[0032] Figure 8 It is a schematic cross-sectional structural diagram of the pressure accumulation box of the present invention.

[0033] In the figure: 1, capture tank; 11, electric heater; 2, air inlet hood; 21, air inlet fan; 22, air outlet pipe; 3, filter plate; 4, threaded rod; 41, limit rod; 5, movable seat; 6, mixing assembly; 61, annular groove; 62, snap-fit ​​seat; 63, connecting rod; 64, mixing plate; 641, storage groove; 642, return spring; 643, limit block; 65, activated carbon rod; 66, connecting ring; 7, drive assembly; 71, support plate; 72, transmission worm; 73, drive motor; 74, transmission worm gear; 8, liquid dosing assembly; 81, cam block; 82, liquid storage box; 83, liquid inlet pipe; 84, pressure storage box; 85, piston plate; 86, push rod; 87, connecting spring; 88, liquid outlet pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 8 , the present invention provides a technical solution for a carbon dioxide capture device:

[0036] A carbon dioxide capture device includes a capture tank 1, and an air intake hood 2 fixedly mounted on the front and rear side walls of the capture tank 1, an air intake fan 21 fixedly mounted on the side wall of the air intake hood 2, a filter plate 3 is placed on the upper end surface of the capture tank 1, and the inner cavity of the capture tank 1 is filled with ammonia solution, and also includes:

[0037] A threaded rod 4, the threaded rod 4 is rotatably mounted on the inner cavity side wall of the collection tank 1, and a movable seat 5 is threadedly mounted on the middle part of the side wall of the threaded rod 4;

[0038] A mixing assembly 6, which is disposed on the side wall of the movable seat 5 and is used to uniformly mix the ammonia solution in the capture tank 1;

[0039] A driving assembly 7, which is arranged on the front side wall of the collecting tank 1, and is used to rotate the threaded rod 4;

[0040] The liquid dosing component 8 is arranged on the rear side wall of the capture tank 1 and is used for adding high-concentration ammonia water into the capture tank 1 .

[0041] Furthermore, the mixing assembly 6 includes an annular groove 61 provided on the side wall of the movable seat 5, and a snap-fit ​​seat 62 slidably mounted in the inner cavity of the annular groove 61, a connecting rod 63 is fixedly mounted on the side wall of the snap-fit ​​seat 62, a mixing plate 64 is fixedly mounted on the side wall of the connecting rod 63, and an activated carbon rod 65 is detachably mounted in the inner cavity of the mixing plate 64;

[0042] Limit rods 41 are fixedly installed on the left and right sides of the inner cavity side walls of the collection tank 1, and the limit rods 41 are slidably connected to the movable seat 5. Several groups of snap-fit ​​seats 62 are arranged in the inner cavity of the annular groove 61, and connecting rings 66 are fixedly installed between the several groups of snap-fit ​​seats 62. Several groups of through holes are provided on the side walls of the mixing plate 64, and the mixing plate 64 is inclined on the side walls of the connecting rod 63.

[0043] It should be noted that the worker can start the driving motor 73 on the front side wall of the liquid storage tank 1 to rotate the transmission worm 72. Since the transmission worm 72 is meshed and connected with the transmission worm wheel 74, the transmission worm wheel 74 will drive the threaded rod 4 to rotate, and the threaded connection with the movable seat 5 is achieved through the threaded rod 4. At this time, under the constraint of the limit rods 41 on the left and right sides of the side wall of the movable seat 5, the movable seat 5 will move back and forth on the side wall of the threaded rod 4. When the movable seat 5 moves in the inner cavity of the collection tank 1, under the resistance of the ammonia liquid body and the inclined arrangement of the mixing plate 64 on the side wall of the connecting rod 63, under the constraint of the connecting ring 66 on the position of each engaging seat 62, multiple mixing plates 64 will rotate along the circumference of the movable seat 5 to stir the ammonia liquid body in the collection tank 1, thereby ensuring the balance of ammonia concentration in various places in the collection tank, thereby effectively improving the efficiency and quality of the entire equipment in absorbing carbon dioxide in the air.

[0044] Furthermore, a receiving groove 641 is provided on the side wall of the mixing plate 64, a return spring 642 is fixedly installed on the bottom surface of the inner cavity of the receiving groove 641, a limit block 643 is fixedly installed on the end of the side wall of the return spring 642, the limit block 643 slides in the inner cavity of the receiving groove 641, and the upper and lower end surfaces of the limit block 643 are inclined, and grooves corresponding to the limit block 643 are provided on the side walls at both ends of the activated carbon rod 65;

[0045] An air outlet pipe 22 extending to the inner cavity of the collecting tank 1 is fixedly installed in the inner cavity of the air inlet hood 2. The inner cavity of the air outlet pipe 22 is provided with a one-way air valve that exports to the outside. An electric heater 11 is fixedly installed on the bottom surface of the inner cavity of the collecting tank 1. The filter plate 3 is made of porous silica.

[0046] It should be noted that, while the ammonia liquid is being stirred and mixed, the toxic and harmful gases in the cavity can be further intercepted and adsorbed by the arrangement of the activated carbon rod 65 on the side wall of the mixing plate 64, and with the cooperation of the filter plate 3, fresh air is discharged to the outside, thereby improving the environmental performance of the entire equipment. A storage groove 641 is provided on the side wall of the mixing plate 64, and a limit block 643 is slidably installed in the inner cavity of the storage groove 641. The upper and lower end surfaces of the limit block 643 are inclined, and grooves corresponding to the limit block 643 are provided on the side walls at both ends of the activated carbon rod 65. At this time, the worker can squeeze the activated carbon rod 65 inward to shrink the reset spring 642. After the worker releases the activated carbon rod 65, the reset spring 642 rebounds, so that the limit block 643 can be engaged in the groove on the side wall of the activated carbon rod 65, that is, the worker can quickly replace the activated carbon rod 65, thereby greatly improving the worker's work efficiency.

[0047] Furthermore, the driving assembly 7 includes a support plate 71 fixedly mounted on the front side wall of the collection tank 1, and a transmission worm 72 rotatably mounted in the inner cavity of the support plate 71, a driving motor 73 is fixedly mounted on the front side wall of the collection tank 1 through a frame, and a transmission worm gear 74 is fixedly mounted on the front end surface of the threaded rod 4;

[0048] The output shaft end of the driving motor 73 is fixedly connected to the driving worm 72 , and the driving worm 72 is meshingly connected to the driving worm wheel 74 . The model of the driving motor 73 is 1FK7083.

[0049] Furthermore, the liquid dosing assembly 8 includes a cam block 81 fixedly mounted on the rear end surface of the threaded rod 4, and a liquid storage box 82 is fixedly mounted on the left and right sides of the upper rear end surface of the capture tank 1. A pressure storage box 84 is fixedly mounted on the lower end surface of the liquid storage box 82 through a liquid inlet pipe 83. A piston plate 85 is slidably mounted in the inner cavity of the pressure storage box 84. A push rod 86 is fixedly mounted on the lower end surface of the piston plate 85, and a connecting spring 87 is wound and mounted on the side wall of the push rod 86.

[0050] The push rod 86 is connected to the pressure storage box 84 through, and the two ends of the connecting spring 87 are fixedly connected to the inner wall of the piston plate 85 and the bottom surface of the inner cavity of the pressure storage box 84 respectively, and the cam block 81 is in contact with the side wall of the push rod 86;

[0051] The two ends of the liquid inlet pipe 83 are respectively connected to the liquid storage box 82 and the pressure accumulation box 84. The inner cavity of the liquid inlet pipe 83 is provided with a one-way water valve whose outlet is to the inner cavity of the pressure accumulation box 84. A liquid outlet pipe 88 is fixedly installed on the side wall of the pressure accumulation box 84. The end of the liquid outlet pipe 88 extends to the inner cavity of the capture tank 1. The inner cavity of the liquid outlet pipe 88 is provided with a one-way water valve whose outlet is to the inner cavity of the capture tank 1. The inner cavity of the liquid storage box 82 is filled with high-concentration ammonia solution.

[0052] It should be noted that when the threaded rod 4 rotates, the cam block 81 fixed at its rear end will also rotate. Under the setting of the connecting spring 87, the push rod 86 will fit tightly with the side wall of the cam block 81. At this time, along with the continuous rotation of the cam block 81, the push rod 86 can drive the piston plate 85 to move back and forth in the inner cavity of the pressure accumulator box 84. When the piston plate 85 moves toward the upper part of the inner cavity of the pressure accumulator box 84, the volume of the upper cavity of the pressure accumulator box 84 continues to increase, and the pressure of the ammonia aqueous solution in the upper cavity rises sharply. The high-concentration ammonia aqueous solution inside can be discharged into the capture through the outlet pipe 88. Inside the pool 1, after mixing under the cooperation of the driving component 7 and the mixing component 6, the concentration of the ammonia liquid inside the capture pool 1 can be increased to ensure that the entire device has a good quality of carbon dioxide capture. When the piston plate 85 moves toward the lower part of the inner cavity of the pressure accumulator box 84, the volume of the upper cavity of the pressure accumulator box 84 continues to decrease, and the pressure of the ammonia liquid in the upper cavity drops sharply. At this time, the high-concentration ammonia liquid in the liquid storage box 82 can enter the upper cavity of the pressure accumulator box 84 through the liquid inlet pipe 83 to replenish the ammonia liquid content and prepare for the next addition of high-concentration ammonia liquid to the capture pool 1.

[0053] Working principle:

[0054] In the initial state, the worker needs to add ammonia solution of medium concentration into the capture tank 1, so that the liquid level of the ammonia solution occupies two-thirds of the volume of the entire capture tank 1, and then cover the filter plate 3, start the electric heater installed on the bottom surface of the inner cavity of the capture tank 1, so that the water temperature of the ammonia solution is maintained at about 60 degrees Celsius (at this time, the ammonia solution has the best effect on the absorption of carbon dioxide), and at the same time add high-concentration ammonia solution into the liquid storage box 82;

[0055] In the working state, the worker starts the air intake fan 21 installed on the side wall of the air intake hood 2 to allow external air to enter the inner cavity of the air intake hood 2. Through the setting of the one-way air valve in the air outlet pipe 22, the air in the inner cavity of the air intake hood 2 can be discharged into the ammonia liquid body in the capture tank 1. Due to the low quality of the air, the air can gradually move upward in the inner cavity of the capture tank 1, and the carbon dioxide gas in the air can be absorbed through the setting of the ammonia liquid inside the capture tank 1.

[0056] As the absorption time increases, the ammonia solution has a certain volatility, and the carbon dioxide gas continuously reacts chemically with ammonia to generate ammonium bicarbonate and ammonium carbonate. At this time, the concentration of ammonia solution in each area of ​​the entire capture tank 1 will change, so that the worker can start the drive motor 73 on the front side wall of the liquid storage tank 1 to rotate the transmission worm 72. Since the transmission worm 72 is meshed with the transmission worm wheel 74, the transmission worm wheel 74 will drive the threaded rod 4 to rotate, and the threaded rod 4 is threadedly connected to the moving seat 5. At this time, under the restraint of the limit rods 41 on the left and right sides of the side wall of the moving seat 5, the moving seat 5 will move forward and backward on the side wall of the threaded rod 4;

[0057] When the movable seat 5 moves in the inner cavity of the capture tank 1, under the resistance of the ammonia liquid body and the mixing plate 64 being inclined on the side wall of the connecting rod 63, under the constraint of the connecting ring 66 on the position of each engaging seat 62, the multiple mixing plates 64 will rotate along the circumference of the movable seat 5 to stir the ammonia liquid body in the capture tank 1, thereby ensuring the balance of ammonia concentration in various places in the capture tank, thereby effectively improving the efficiency and quality of the entire device in absorbing carbon dioxide in the air;

[0058] While the ammonia water is being stirred and mixed, the activated carbon rods 65 provided on the side walls of the mixing plate 64 can further intercept and adsorb the toxic and harmful gases in the cavity, and with the cooperation of the filter plate 3, fresh air is discharged to the outside, thereby improving the environmental performance of the entire device;

[0059] A storage groove 641 is provided on the side wall of the mixing plate 64, and a limit block 643 is slidably installed in the inner cavity of the storage groove 641. The upper and lower end surfaces of the limit block 643 are inclined. Grooves corresponding to the limit blocks 643 are provided on the side walls at both ends of the activated carbon rod 65. At this time, the worker can squeeze the activated carbon rod 65 inward to shrink the reset spring 642. After the worker releases the activated carbon rod 65, the reset spring 642 rebounds, and the limit block 643 is engaged in the groove on the side wall of the activated carbon rod 65. That is, the worker can quickly replace the activated carbon rod 65, which greatly improves the worker's work efficiency.

[0060] When the threaded rod 4 rotates, the cam block 81 fixed at its rear end will also rotate. Under the setting of the connecting spring 87, the push rod 86 will fit tightly with the side wall of the cam block 81. At this time, along with the continuous rotation of the cam block 81, the push rod 86 can drive the piston plate 85 to move back and forth in the inner cavity of the pressure accumulator box 84. When the piston plate 85 moves to the upper part of the inner cavity of the pressure accumulator box 84, the volume of the upper cavity of the pressure accumulator box 84 increases continuously, and the pressure of the ammonia solution in the upper cavity rises sharply. The high-concentration ammonia solution inside can be discharged into the capture tank 1 through the outlet pipe 88. After mixing under the cooperation of the driving component 7 and the mixing component 6, the concentration of the ammonia solution in the capture tank 1 can be increased to ensure that the entire device has a good quality of capturing carbon dioxide. When the piston plate 85 moves toward the lower part of the inner cavity of the pressure accumulator box 84, the volume of the upper cavity of the pressure accumulator box 84 is continuously reduced, and the pressure of the ammonia solution in the upper cavity drops sharply. At this time, the high-concentration ammonia solution in the liquid storage box 82 can enter the upper cavity of the pressure accumulator box 84 through the liquid inlet pipe 83 to replenish the ammonia solution content and prepare for the next addition of high-concentration ammonia solution to the capture tank 1.

[0061] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A carbon dioxide capture device, comprising a capture tank (1), and an air intake hood (2) fixedly mounted on the front and rear side walls of the capture tank (1), an air intake fan (21) fixedly mounted on the side wall of the air intake hood (2), a filter plate (3) placed on the upper end surface of the capture tank (1), and an inner cavity of the capture tank (1) filled with ammonia solution, characterized in that: Also includes: A threaded rod (4), the threaded rod (4) being rotatably mounted on the inner cavity side wall of the collection tank (1), and a movable seat (5) being threadably mounted on the middle portion of the side wall of the threaded rod (4); A mixing component (6), the mixing component (6) being arranged on a side wall of the movable seat (5), the mixing component (6) being used to evenly mix the ammonia solution in the capture tank (1); A driving assembly (7), the driving assembly (7) being arranged on the front side wall of the collection tank (1), and the driving assembly (7) being used to drive the threaded rod (4) to rotate; A liquid dosing component (8), the liquid dosing component (8) being arranged on the rear side wall of the capture tank (1), and the liquid dosing component (8) being used to add high-concentration ammonia water into the capture tank (1); The mixing assembly (6) comprises an annular groove (61) formed on the side wall of the movable seat (5), and a snap-fit ​​seat (62) slidably mounted in the inner cavity of the annular groove (61); a connecting rod (63) is fixedly mounted on the side wall of the snap-fit ​​seat (62); a mixing plate (64) is fixedly mounted on the side wall of the connecting rod (63); and an activated carbon rod (65) is detachably mounted in the inner cavity of the mixing plate (64); Limit rods (41) are fixedly installed on the left and right sides of the inner cavity side wall of the collection tank (1), and the limit rods (41) are slidably connected to the movable seat (5). The locking seats (62) are provided in a plurality of groups in the inner cavity of the annular groove (61), and connecting rings (66) are fixedly installed between the plurality of groups of locking seats (62). The side walls of the mixing plate (64) are provided with a plurality of groups of through holes, and the mixing plate (64) is arranged obliquely on the side walls of the connecting rod (63); A receiving groove (641) is provided on the side wall of the mixing plate (64); a return spring (642) is fixedly mounted on the bottom surface of the inner cavity of the receiving groove (641); a limit block (643) is fixedly mounted on the end of the side wall of the return spring (642); the limit block (643) slides in the inner cavity of the receiving groove (641); the upper and lower end surfaces of the limit block (643) are inclined; and grooves corresponding to the limit blocks (643) are provided on the side walls at both ends of the activated carbon rod (65).

2. A carbon dioxide capture device according to claim 1, characterized in that: An air outlet pipe (22) extending to the inner cavity of the capture tank (1) is fixedly mounted in the inner cavity of the air inlet hood (2); a one-way air valve with an outlet to the outside is provided in the inner cavity of the air outlet pipe (22); an electric heater (11) is fixedly mounted on the bottom surface of the inner cavity of the capture tank (1); and the filter plate (3) is made of porous silica.

3. A carbon dioxide capture device according to claim 1, characterized in that: The driving assembly (7) comprises a support plate (71) fixedly mounted on the front side wall of the collection tank (1), and a transmission worm (72) rotatably mounted in the inner cavity of the support plate (71); a driving motor (73) is fixedly mounted on the front side wall of the collection tank (1) via a frame, and a transmission worm gear (74) is fixedly mounted on the front end surface of the threaded rod (4).

4. A carbon dioxide capture device according to claim 3, characterized in that: The output shaft end of the drive motor (73) is fixedly connected to the transmission worm (72), the transmission worm (72) is meshingly connected to the transmission worm wheel (74), and the model of the drive motor (73) is 1FK7083.

5. A carbon dioxide capture device according to claim 1, characterized in that: The liquid dosing assembly (8) comprises a cam block (81) fixedly mounted on the rear end surface of the threaded rod (4); a liquid storage box (82) is fixedly mounted on the left and right sides of the upper portion of the rear end surface of the capture tank (1); a pressure storage box (84) is fixedly mounted on the lower end surface of the liquid storage box (82) via a liquid inlet pipe (83); a piston plate (85) is slidably mounted in the inner cavity of the pressure storage box (84); a push rod (86) is fixedly mounted on the lower end surface of the piston plate (85); and a connecting spring (87) is wound around the side wall of the push rod (86).

6. A carbon dioxide capture device according to claim 5, characterized in that: The push rod (86) is connected to the pressure storage box (84) through, and the two ends of the connecting spring (87) are fixedly connected to the inner wall of the piston plate (85) and the bottom surface of the inner cavity of the pressure storage box (84) respectively, and the cam block (81) is in contact with the side wall of the push rod (86).

7. A carbon dioxide capture device according to claim 5, characterized in that: The two ends of the liquid inlet pipe (83) are respectively connected to the liquid storage box (82) and the pressure accumulation box (84); the inner cavity of the liquid inlet pipe (83) is provided with a one-way water valve with an outlet toward the inner cavity of the pressure accumulation box (84); a liquid outlet pipe (88) is fixedly mounted on the side wall of the pressure accumulation box (84); the end of the liquid outlet pipe (88) extends to the inner cavity of the capture tank (1); the inner cavity of the liquid outlet pipe (88) is provided with a one-way water valve with an outlet toward the inner cavity of the capture tank (1); and the inner cavity of the liquid storage box (82) is filled with high-concentration ammonia solution.

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