An improved carbon capture device based on saline-alkali land

Abstract

The invention relates to the technical field of carbon capture, and discloses an improved carbon capture device based on saline-alkali land, comprising a tank body, wherein two tank bodies are provided, and further comprising a diverter box, a diverter assembly, a gas transmission assembly, a fixed cylinder, a stirring assembly, a product collection assembly and an exhaust assembly. The diverter box is provided between the two tank bodies, and the diverter assembly is fixedly installed in the diverter box. The two tank bodies are both provided with a gas transmission assembly, the two tank bodies are both provided with a fixed cylinder, the two tank bodies are both provided with an stirring assembly, the product collection assembly is installed between the two tank bodies, and the exhaust assembly is installed between the two tank bodies. Through the above technical scheme, the problem in the prior art that when capturing carbon dioxide, due to the change in the concentration of ammonia water, the capture system is difficult to capture carbon dioxide stably for a long time, thereby affecting the capture of carbon dioxide is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon capture, and in particular to an improved carbon capture device based on saline-alkali land. Background Art

[0002] A carbon capture device is a technical device used to capture and separate carbon dioxide. Its main function is to capture and collect carbon dioxide from the gas exhaust generated during fuel combustion, thereby reducing carbon emissions from fuel combustion. This device is widely used in industrial fields, such as coal-fired power plants, petrochemicals and other industries. Carbon dioxide can be collected through a carbon capture device. Carbon dioxide is essential for plants to carry out photosynthesis. Adding an appropriate amount of carbon dioxide to saline-alkali land can help improve soil quality and enhance soil water retention and fertility.

[0003] Ammonia water is used when capturing carbon dioxide. Ammonia water is an alkaline solution that can generate ammonium bicarbonate by absorbing carbon dioxide, thereby achieving the capture of carbon dioxide. During the operation, an appropriate amount of ammonia water is dissolved in water to form an ammonia solution. The required ammonia concentration depends on the concentration of carbon dioxide to be treated. The gas containing carbon dioxide is then passed through a pipe or container filled with ammonia solution to react with ammonia water. Ammonia water will absorb carbon dioxide and generate ammonium bicarbonate to achieve carbon capture. During the working process, new ammonia solution can be added as needed.

[0004] In the process of capturing carbon dioxide, the concentration of ammonia water will change as the work progresses, and the change in ammonia water concentration affects the carbon capture process. When the ammonia water concentration is high, a large amount of ammonia water vapor will be generated during the flushing process, which will not only increase energy consumption, but may also cause the capture system to be blocked. In addition, as the capture progresses, the ammonia water concentration will change, making it difficult for the capture system to capture carbon dioxide stably for a long time, thereby reducing the capture efficiency and affecting the re-release of carbon dioxide when ammonia water is regenerated. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an improved carbon capture device based on saline-alkali land to solve the problem in the prior art proposed in the background technology that when capturing carbon dioxide, the concentration of ammonia water changes, making it difficult for the capture system to capture carbon dioxide stably for a long time, thus affecting the capture of carbon dioxide.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A carbon capture device based on saline-alkali land improvement includes a tank body, two of which are provided, and further includes:

[0008] A diverter box, the diverter box is arranged between the two tanks;

[0009] A flow diversion component, wherein the flow diversion component is fixedly installed in the flow diversion box and is used for diverting gas;

[0010] A gas delivery component, which is installed inside the two tanks and is used to deliver gas;

[0011] A fixed cylinder, wherein the two tank bodies are both fixedly installed with the fixed cylinder;

[0012] A stirring assembly, wherein the two tanks are provided with the stirring assembly for assisting carbon capture;

[0013] A product collecting assembly, which is installed between the two tanks and is used to collect products;

[0014] An exhaust component is installed between the two tanks and is used for exhausting air.

[0015] Based on the above solution, the diversion component includes:

[0016] A shunt pipe, both sides of the shunt box are connected with the shunt pipe;

[0017] Slide rails, two of which are symmetrically and fixedly installed inside the diverter box;

[0018] A flow diversion rack, two flow diversion racks are slidably and sealedly installed on both sides of the inside of the diversion box, the two flow diversion racks are located on both sides of the slide rail, and the flow diversion racks are slidably matched with the slide rail;

[0019] A linkage part is installed between the two diverter racks and is used to control the sliding of the two diverter racks.

[0020] On the basis of the above scheme, the linkage unit comprises:

[0021] Slide grooves, two slide grooves are symmetrically arranged inside the two diversion racks;

[0022] A linkage frame is rotatably mounted between the two slide rails;

[0023] Slide blocks, the two ends of the linkage frame are symmetrically and fixedly mounted with the slide blocks, and the slide blocks are slidably matched with the slide grooves;

[0024] An electric cylinder is fixedly mounted on the bottom of the diverter box, and an output end of the electric cylinder is fixedly connected to one of the diverter racks.

[0025] Based on the above solution, the gas delivery assembly includes:

[0026] An air inlet, which is fixedly mounted on the two tank bodies and is communicated with the shunt pipe;

[0027] An upper baffle, wherein the upper baffle is fixedly installed inside the two tank bodies;

[0028] A lower baffle, wherein the two tank bodies are both fixedly mounted with the lower baffle, the lower baffle is located at the lower part of the upper baffle, and the air inlet is located between the lower baffle and the upper baffle;

[0029] A mesh plate, wherein the mesh plate is fixedly installed inside the two tank bodies;

[0030] The mesh plate, the upper partition plate and the lower partition plate are all fixedly connected to the fixed tube, an air intake cavity is between the upper partition plate and the lower partition plate, and an air exhaust cavity is between the mesh plate and the lower partition plate.

[0031] In addition to the above solutions, it also includes:

[0032] Inlet pipes, a plurality of the inlet pipes are fixedly installed on the two lower baffles in a circular shape with equal angles, the plurality of the inlet pipes are connected to the inlet cavity, and the bottom of the inlet pipe is located at the lower part of the mesh plate;

[0033] Exhaust grooves, each of the bottom of the air inlet pipe is provided with a plurality of the exhaust grooves at equal angles in a circular shape;

[0034] An exhaust portion is installed on the upper partition plate and is used for exhausting air.

[0035] On the basis of the above scheme, the exhaust part comprises:

[0036] Exhaust pipes, a plurality of the exhaust pipes are fixedly mounted on the two upper baffles in a circular shape with equal angles, the plurality of the exhaust pipes are staggered with the plurality of the intake pipes, and the plurality of the exhaust pipes are connected with the exhaust chamber;

[0037] Lower gasket; a plurality of lower gaskets are fixedly mounted on the two upper baffles in a circular shape with equal angles, and the plurality of lower gaskets correspond one to one with the plurality of exhaust pipes;

[0038] Mounting rings, a plurality of said mounting rings are fixedly mounted on the two tank bodies in a circular shape with equal angles, and the plurality of said mounting rings correspond one to one with the plurality of said lower washers;

[0039] A mounting frame, wherein each mounting ring has the mounting frame removably and sealingly mounted therein;

[0040] An activated carbon adsorption sleeve, wherein the activated carbon adsorption sleeve is detachably and rotatably mounted on the bottom of each mounting frame, the activated carbon adsorption sleeve abuts against the lower gasket, and the upper end of the exhaust pipe is located inside the activated carbon adsorption sleeve;

[0041] The detector is fixedly mounted on the inner top walls of the two tanks.

[0042] On the basis of the above scheme, the stirring assembly comprises:

[0043] A transmission shaft, wherein the transmission shaft is rotatably mounted inside the two fixed cylinders;

[0044] A motor, wherein the motor is fixedly mounted on the top of the two tanks, and the output end of the motor is fixedly connected to the transmission shaft;

[0045] A scraper frame, the bottom of the two transmission shafts are fixedly mounted with the scraper frame, and the scraper frame is rotatably abutted against the inner bottom wall of the tank body;

[0046] A housing, the two transmission shafts are fixedly mounted with the housing, and the housing is rotatably and sealingly connected to the bottom of the fixed cylinder;

[0047] A feed inlet, which is fixedly mounted on the two tank bodies and communicates with the exhaust cavity;

[0048] A stirring part is installed inside the shell and is used for stirring in coordination with the scraper frame.

[0049] On the basis of the above scheme, the stirring part comprises:

[0050] A fixed bevel gear, the bottom of the two fixed cylinders are fixedly mounted with the fixed bevel gear;

[0051] A stirring shaft, a plurality of stirring shafts are mounted on the two shells in a circular shape and rotatably arranged at equal angles;

[0052] A driven helical gear, each of the stirring shafts is fixedly mounted with the driven helical gear, the driven helical gear is meshed with the fixed helical gear;

[0053] Stirring blades, each of the stirring shafts is provided with a plurality of stirring blades fixedly mounted at equal angles in a circular shape.

[0054] Based on the above scheme, the product collection component:

[0055] A collecting tank, the collecting tank being arranged on the side of the tank body;

[0056] A water pump, the water pump being arranged on a side of the collection tank;

[0057] A connecting pipe, wherein the bottoms of the two tanks are connected with the connecting pipe;

[0058] Valves, the valves are fixedly installed at both ends of the connecting pipe;

[0059] A feed pipe, the feed pipe being connected between the input end of the water pump and the connecting pipe;

[0060] A discharge pipe is connected between the output end of the water pump and the collection tank.

[0061] Based on the above solution, the exhaust assembly includes:

[0062] A vent pipe, the vent pipe being connected between the exhaust ends of the two tanks;

[0063] A fan, wherein the fan is arranged on the side of the tank body;

[0064] An air outlet pipe, the air outlet pipe being connected between the input end of the fan and the ventilation pipe;

[0065] An air venting pipe is connected to an output end of the fan.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] 1. In the present invention, when one of the diverter racks moves, the diverter rack pushes the slider to move through the setting of the slide slot, and during the movement of the slider, the slider and the slide slot move relative to each other, and under the action of the slider, the linkage rack can be pushed to swing, so as to move the other diverter rack away. Under the action of the linkage rack, the electric cylinder can adjust the two diverter racks at the same time, so that the two diverter racks can move in opposite directions at the same time, which is convenient for controlling the on and off of the two diverter pipes, thereby improving the capture efficiency and simplifying the work process;

[0068] 2. In the present invention, the carbon dioxide gas is discharged through the exhaust groove at the bottom of the air inlet pipe, the exhaust groove is located at the lower part of the mesh plate, and the liquid level of the ammonia solution is located at the upper part of the mesh plate and has a distance from the lower partition plate. The carbon dioxide gas discharged through the exhaust cavity increases the contact area with the ammonia solution, and the carbon dioxide bubbles entering the ammonia solution will become smaller bubbles under the action of the mesh plate, first making the bubble volume smaller and increasing the contact area with the ammonia solution. In addition, the bubbles will break in the process of passing through the mesh plate, further improving the efficiency of the reaction with the ammonia solution, making the capture process more stable;

[0069] 3. In the present invention, the motor drives the corresponding scraper frame and the outer shell to rotate through the transmission shaft, thereby scraping and stirring the inner bottom wall of the tank body to prevent the generated ammonium bicarbonate from being deposited at the bottom of the tank body. At the same time, through the meshing of the driven bevel gear and the fixed bevel gear, the driven bevel gear can be driven to rotate, thereby driving the corresponding stirring shaft to rotate. Through the setting of the stirring blade, the ammonia water and the carbon dioxide bubbles can be further mixed, thereby improving the capture efficiency and making the ammonia solution uniform.

[0070] 4. In the present invention, through the cooperation of the detector, the valve and the electric cylinder, the diversion pipe through which the carbon dioxide gas enters the diversion box can be conveniently adjusted, so that the reacted solution can be collected and replaced with a new ammonia solution without affecting the normal capture process. The cooperation of the gas transmission component and the stirring component not only improves the capture efficiency, but also can capture carbon dioxide for a long time and stably. Through the setting of the product collection component, the solution after the reaction can be drawn away and stored, which is convenient for the use of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 It is a schematic diagram of the overall structure of this application;

[0072] Figure 2 It is a schematic diagram of a three-dimensional structure in section in this application;

[0073] Figure 3 This is a schematic diagram of the overall structure from another angle in this application;

[0074] Figure 4 It is a schematic cross-sectional structural diagram of the diversion component in this application;

[0075] Figure 5 It is a cross-sectional structural schematic diagram of the linkage part in this application;

[0076] Figure 6 This is a cross-sectional structural diagram of the gas delivery component, the stirring component and the product collection component in this application;

[0077] Figure 7 It is a schematic cross-sectional structural diagram of the gas transmission component in this application;

[0078] Figure 8 It is a schematic diagram of the cross-sectional structure of the exhaust part in this application;

[0079] Fig. 9 It is a schematic cross-sectional structural diagram of the stirring assembly in this application;

[0080] Fig.10 For this application Fig. 9 A schematic diagram of the local enlarged structure at point A in the middle;

[0081] Fig.11 This is a schematic diagram of the structure of the product collection component in this application.

[0082] In the figure: 1, tank body; 2, shunt box; 3, fixed cylinder; 4, shunt pipe; 5, slide rail; 6, shunt frame; 7, slide groove; 8, linkage frame; 9, slide block; 10, electric cylinder; 11, air inlet; 12, upper partition; 13, lower partition; 14, mesh plate; 15, air inlet pipe; 16, exhaust groove; 17, exhaust pipe; 18, lower gasket; 19, mounting ring; 20, mounting frame; 21, activated carbon adsorption sleeve ; 22. Detector; 23. Drive shaft; 24. Motor; 25. Scraper frame; 26. Casing; 27. Feed inlet; 28. Fixed bevel gear; 29. ​​Stirring shaft; 30. Driven bevel gear; 31. Stirring blade; 32. Collecting tank; 33. Water pump; 34. Connecting pipe; 35. Valve; 36. Feed pipe; 37. Discharge pipe; 38. Ventilation pipe; 39. Fan; 40. Exhaust pipe; 41. Venting pipe. DETAILED DESCRIPTION

[0083] 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.

[0084] See also Figures 1 to 11 A carbon capture device based on saline-alkali land improvement includes a tank body 1, two tank bodies 1 are provided, and also include a diverter box 2, a diverter component, a gas transmission component, a fixed cylinder 3, an agitation component, a product collection component and an exhaust component. The diverter box 2 is arranged between the two tank bodies 1, and a diverter component is fixedly installed in the diverter box 2 for diverting gas. The diverter component includes a diverter pipe 4, a slide rail 5, a diverter frame 6 and a linkage part. The diverter pipe 4 is connected to both sides of the diverter box 2. Two slide rails 5 are symmetrically and fixedly installed inside the diverter box 2. Two diverter frames 6 are slidably and sealedly installed on both sides of the diverter box 2. The two diverter frames 6 are located on both sides of the slide rail 5. The diverter frame 6 and the slide rail 5 are slidably matched. A linkage part is installed between the two diverter frames 6 for controlling the sliding of the two diverter frames 6.

[0085] Specifically, when capturing carbon dioxide, the gas flow containing a certain concentration of carbon dioxide is first pre-treated, such as dust removal, to remove most of the solid particles therein, thereby obtaining relatively pure carbon dioxide gas. Then, the concentration of the ammonia solution is adjusted according to the use requirements, and the ammonia solution is injected into the tank body 1. At this time, the pre-treated carbon dioxide gas is passed into the input port at the bottom of the diverter box 2. After the carbon dioxide gas enters the diverter box 2, it can only enter one of the diverter pipes 4 and one of the tank bodies 1 through the setting of the diverter frame 6 and the action of the linkage part. At this time, the carbon dioxide gas entering the tank body 1 will be passed into the ammonia solution under the action of the gas transmission component. At this time, the ammonia solution and the carbon dioxide will react to generate ammonium bicarbonate. As the reaction continues, at the same time Turn on the stirring component to stir the ammonia solution in the tank body 1 during the reaction, so as to make the composition of the ammonia solution uniform and facilitate the capture. When the reaction is completed, the linkage part is set to allow the carbon dioxide gas entering the diversion box 2 to enter another diversion pipe 4 and enter another tank body 1 to start the reaction, thereby improving the capture efficiency. There is no need to constantly detect the concentration of the ammonia solution, which simplifies the work process. Other gases will be discharged through the exhaust component. At the same time, the product collection component is set to extract the solution in the tank body 1 after the reaction is completed, and use separation equipment to separate ammonium bicarbonate from the ammonia solution, thereby realizing the capture of carbon dioxide. The captured carbon dioxide is then desorbed by a desorbent to turn it into a gaseous state. Commonly used desorbents include alkaline substances such as sodium hydroxide.

[0086] It should be added that the separated carbon dioxide has the effect of improving saline-alkali land. Carbon dioxide is a sustainable method to improve saline-alkali land. By injecting carbon dioxide gas into saline-alkali land, the soil pH and salt composition can be changed, and soil fertility and crop yield can be improved. In specific operations, before releasing carbon dioxide, the soil pH and salinity of the saline-alkali land must first be accurately measured to understand the basic conditions of the land, and then a suitable carbon dioxide release plan is formulated based on the soil pH and salinity. Common methods include direct injection and pipeline transportation to improve the saline-alkali land environment.

[0087] It should be noted that although increasing carbon dioxide is a way to improve saline-alkali land, using it alone cannot achieve the best effect. In order to better manage saline-alkali land, a combination of measures is needed, such as increasing carbon dioxide, adjusting soil pH (applying appropriate acidic or alkaline substances, such as organic fertilizers, lime, etc.), adjusting soil pH, and combining engineering measures to better improve saline-alkali land, improve soil quality, and promote plant growth.

[0088] The above, such as Figure 5As shown, the linkage part includes a slide groove 7, a linkage frame 8, a slider 9 and an electric cylinder 10. Two slide grooves 7 are symmetrically opened inside the two diverter frames 6. The linkage frame 8 is rotatably installed between the two slide rails 5. Slide blocks 9 are symmetrically and fixedly installed at both ends of the linkage frame 8. The slider 9 is slidably matched with the slide groove 7. An electric cylinder 10 is fixedly installed at the bottom of the diverter box 2, and the output end of the electric cylinder 10 is fixedly connected to one of the diverter frames 6.

[0089] Specifically, after the carbon dioxide gas enters the inside of the diverter rack 6, the electric cylinder 10 is in a working state, and the output end of the electric cylinder 10 is pushed out, thereby pushing one diverter rack 6 onto the inner top wall of the diverter box 2, sealing the entrance of one of the diverter tubes 4. At this time, under the action of the linkage rack 8, when one of the diverter racks 6 moves, the diverter rack 6 pushes the slider 9 to move through the setting of the slide groove 7, and in the process of the movement of the slider 9, the slider 9 and the slide groove 7 move relative to each other. Under the action of the slider 9, the linkage rack 8 can be pushed to swing, thereby moving the other diverter rack 6 away. Therefore, under the action of the linkage rack 8, the electric cylinder 10 can adjust the two diverter racks 6 at the same time when working, so that the two diverter racks 6 can move in opposite directions at the same time, which is convenient for controlling the on and off of the two diverter tubes 4.

[0090] like Figures 6 to 8 As shown, both tank bodies 1 are equipped with gas delivery components for delivering gas, and the gas delivery components include an air inlet 11, an upper baffle 12, a lower baffle 13 and a mesh plate 14. Both tank bodies 1 are fixedly equipped with an air inlet 11, and the air inlet 11 is connected to the shunt pipe 4. Both tank bodies 1 are fixedly equipped with an upper baffle 12, and both tank bodies 1 are fixedly equipped with a lower baffle 13, which is located at the lower part of the upper baffle 12. The air inlet 11 is located between the lower baffle 13 and the upper baffle 12, and both tank bodies 1 are fixedly equipped with a mesh plate 14, wherein the mesh plate 1 4. The upper partition 12 and the lower partition 13 are both fixedly connected to the fixed tube 3. The air intake cavity is between the upper partition 12 and the lower partition 13, and the exhaust cavity is between the mesh plate 14 and the lower partition 13. It also includes an air intake pipe 15, an exhaust groove 16 and an exhaust part. Multiple air intake pipes 15 are fixedly installed at equal angles in a circular shape on the two lower partitions 13. The multiple air intake pipes 15 are connected to the air intake cavity. The bottom of the air intake pipe 15 is located at the lower part of the mesh plate 14. The bottom of each air intake pipe 15 is provided with multiple exhaust grooves 16 at equal angles in a circular shape. The exhaust part is installed on the upper partition 12 for exhaust.

[0091] Specifically, when the carbon dioxide gas passes through one of the shunt pipes 4 and enters the corresponding tank body 1, the carbon dioxide gas at this time first enters the air intake cavity between the upper partition 12 and the lower partition 13. At this time, under the action of the fan 39, the carbon dioxide gas entering the air intake cavity will enter the air intake pipe 15, and the air entering the air intake pipe 15 will be discharged through the exhaust groove 16. Since the exhaust groove 16 is located at the lower part of the mesh plate 14, and the liquid level of the ammonia solution is located at the upper part of the mesh plate 14 and has a distance from the lower partition 13, the carbon dioxide gas discharged through the exhaust cavity increases the ammonia solution. The contact area of ​​the solution is increased, and the carbon dioxide bubbles entering the ammonia solution will become smaller bubbles under the action of the mesh plate 14. In this way, the bubble volume is first made smaller, the contact area with the ammonia solution is increased, and the bubbles will burst in the process of passing through the mesh plate 14, further improving the efficiency of the reaction with the ammonia solution and making the capture process more stable. Nitrogen, oxygen, and some other gases in the captured gas will enter the exhaust cavity between the liquid surface of the ammonia solution and the lower partition 13, and can be discharged through the setting of the exhaust part.

[0092] The above, such as Figure 7 , Figure 8 As shown, the exhaust part includes an exhaust pipe 17, a lower gasket 18, a mounting ring 19, a mounting frame 20, an activated carbon adsorption sleeve 21 and a detector 22. Multiple exhaust pipes 17 are fixedly installed at equal angles in a circumferential shape on the two upper partitions 12. The multiple exhaust pipes 17 are staggered with the multiple intake pipes 15. The multiple exhaust pipes 17 are connected to the exhaust cavity. Multiple lower gaskets 18 are fixedly installed at equal angles in a circumferential shape on the two upper partitions 12. The multiple lower gaskets 18 correspond to the multiple exhaust pipes 17 one by one. A plurality of mounting rings 19 are fixedly installed at equal angles in a circular shape on each tank body 1, and the plurality of mounting rings 19 correspond to the plurality of lower gaskets 18 one by one. A mounting frame 20 is detachably and sealedly installed inside each mounting ring 19, and an activated carbon adsorption sleeve 21 is detachably and rotatably installed at the bottom of each mounting frame 20. The activated carbon adsorption sleeve 21 abuts against the lower gasket 18, and the upper end of the exhaust pipe 17 is located inside the activated carbon adsorption sleeve 21. Detectors 22 are fixedly installed on the inner top walls of the two tank bodies 1.

[0093] Specifically, before carbon capture of a certain concentration of carbon dioxide gas flow is performed, the activated carbon adsorption sleeve 21 is first rotatably installed at the bottom of the corresponding mounting frame 20. The activated carbon adsorption sleeve 21 is made of activated carbon and has the function of adsorbing harmful gases. After the activated carbon adsorption sleeve 21 is installed, the corresponding mounting frame 20 is installed in the mounting ring 19. The connection method of the mounting frame 20 and the mounting ring 19 is preferably connected by a threaded connection. When the mounting frame 20 is installed, the corresponding activated carbon adsorption sleeve 21 will abut against the corresponding lower gasket 18 to prevent air from escaping. After the captured gas enters the exhaust chamber, it will pass through the exhaust The setting of the air pipe 17 discharges the gas into the activated carbon adsorption sleeve 21, and after being filtered by the activated carbon adsorption sleeve 21, the gas can be discharged, and harmful substances in the gas are filtered, thereby reducing pollution to the environment. Through the setting of the detector 22, the carbon dioxide in the gas discharged from the activated carbon adsorption sleeve 21 is detected. The detector 22 is provided with a signal transmitter, and a matching signal receiver is provided on the electric cylinder 10. When carbon dioxide is detected, a signal is transmitted to the electric cylinder 10, and the electric cylinder 10 performs a corresponding action to discharge the carbon dioxide gas entering the diversion box 2 into another diversion pipe 4.

[0094] like Fig. 9 As shown, a fixed cylinder 3 is fixedly installed inside the two tank bodies 1, and a stirring assembly is installed inside the two tank bodies 1 for assisting carbon capture. The stirring assembly includes a transmission shaft 23, a motor 24, a scraper frame 25, a shell 26, a feed port 27 and a stirring portion. The transmission shaft 23 is rotatably installed inside the two fixed cylinders 3, and a motor 24 is fixedly installed on the top of the two tank bodies 1. The output end of the motor 24 is fixedly connected to the transmission shaft 23, and a scraper frame 25 is fixedly installed on the bottom of the two transmission shafts 23. The scraper frame 25 is rotatably abutted against the inner bottom wall of the tank body 1. A shell 26 is fixedly installed on the two transmission shafts 23, and the shell 26 is rotatably and sealedly connected to the bottom of the fixed cylinder 3. A feed port 27 is fixedly installed on the two tank bodies 1, and the feed port 27 is communicated with the exhaust chamber. A stirring portion is installed inside the shell 26 for stirring in cooperation with the scraper frame 25.

[0095] Specifically, in the process of capturing carbon dioxide, in order to ensure stable capture, the composition of the ammonia solution needs to be uniform. At this time, the corresponding motor 24 is started, and the motor 24 drives the transmission shaft 23 to rotate, and relative rotation occurs between the transmission shaft 23 and the fixed cylinder 3. While the transmission shaft 23 rotates, the corresponding scraper frame 25 and the outer shell 26 are driven to rotate, thereby scraping and stirring the inner bottom wall of the tank body 1 to prevent the generated ammonium bicarbonate from being deposited at the bottom of the tank body 1, and through cooperation with the stirring part, the ammonia solution and the carbon dioxide bubbles can be further mixed, thereby improving the capture efficiency and making the ammonia solution uniform.

[0096] By setting the feed port 27, when the reaction between the ammonia solution and the carbon dioxide gas in one of the tank bodies 1 is completed, the diversion tube 4 in use can be closed and the other diversion tube 4 can be opened at the same time. Then, the ammonia solution after capturing the carbon dioxide needs to be discharged and stored, and the corresponding feed port 27 is opened to add new ammonia solution to the tank body 1.

[0097] The above, such as Fig.10 As shown, the stirring part includes a fixed bevel gear 28, a stirring shaft 29, a driven bevel gear 30 and a stirring blade 31. The fixed bevel gear 28 is fixedly installed on the bottom of the two fixed cylinders 3. A plurality of stirring shafts 29 are installed on the two outer shells 26 in a circular shape and rotatable at equal angles. A driven bevel gear 30 is fixedly installed on each stirring shaft 29. The driven bevel gear 30 is meshed with the fixed bevel gear 28. A plurality of stirring blades 31 are fixedly installed on each stirring shaft 29 in a circular shape and equiangularly.

[0098] Specifically, as the transmission shaft 23 rotates, the transmission shaft 23 drives the outer shell 26 to rotate, thereby driving multiple stirring shafts 29 to rotate around the axis of the outer shell 26. At this time, through the engagement of the driven bevel gear 30 and the fixed bevel gear 28, the driven bevel gear 30 can be driven to rotate, thereby driving the corresponding stirring shaft 29 to rotate. By setting the stirring blade 31, the ammonia solution can be stirred.

[0099] like Fig.11 As shown, the product collecting assembly is installed between the two tank bodies 1 for collecting products. The product collecting assembly includes a collecting tank 32, a water pump 33, a connecting pipe 34, a valve 35, a feed pipe 36 and a discharge pipe 37. The collecting tank 32 is arranged on the side of the tank body 1, the water pump 33 is arranged on the side of the collecting tank 32, a connecting pipe 34 is connected between the bottoms of the two tank bodies 1, valves 35 are fixedly installed at both ends of the connecting pipe 34, the feed pipe 36 is connected between the input end of the water pump 33 and the connecting pipe 34, and the discharge pipe 37 is connected between the output end of the water pump 33 and the collecting tank 32.

[0100] Specifically, when the reaction of the ammonia solution in the tank body 1 into which the carbon dioxide gas is introduced is completed, ammonium bicarbonate is generated. At this time, the corresponding valve 35 is opened, the water pump 33 is turned on, and the solution after the reaction is extracted through the connecting pipe 34 and the feed pipe 36, and the solution is discharged into the collection tank 32 through the discharge pipe 37 for storage.

[0101] like Figure 3As shown, the exhaust component is installed between the two tank bodies 1 for exhausting air. The exhaust component includes a vent pipe 38, a fan 39, an outlet pipe 40 and a vent pipe 41. The exhaust ends of the two tank bodies 1 are connected with a vent pipe 38. The fan 39 is arranged on the side of the tank body 1. The outlet pipe 40 is connected between the input end of the fan 39 and the vent pipe 38. The vent pipe 41 is connected to the output end of the fan 39.

[0102] Specifically, when capturing carbon dioxide, the fan 39 is turned on, and the treated air is sucked out through the setting of the fan 39 and the setting of the ventilation pipe 38 and the exhaust pipe 40, and then discharged through the exhaust pipe 41.

[0103] The working principle or use process of this device is:

[0104] When capturing carbon dioxide, the gas flow containing a certain concentration of carbon dioxide is first pretreated, such as dust removal, to remove most of the solid particles therein, thereby obtaining a relatively pure carbon dioxide gas. Then, according to the use requirements, the concentration of the ammonia solution is adjusted, and the ammonia solution is injected into the tank body 1. At this time, the pretreated carbon dioxide gas is passed into the input port at the bottom of the diverter box 2.

[0105] After the carbon dioxide gas enters the inside of the diverter rack 6, the electric cylinder 10 is in a working state. At this time, the output end of the electric cylinder 10 is pushed out, thereby pushing one diverter rack 6 onto the inner top wall of the diverter box 2, sealing the entrance of one of the diverter pipes 4. At this time, under the action of the linkage rack 8, when one of the diverter racks 6 moves, the diverter rack 6 pushes the slider 9 to move through the setting of the slide groove 7, and in the process of the movement of the slider 9, the slider 9 and the slide groove 7 move relative to each other. Under the action of the slider 9, the linkage rack 8 can be pushed to swing, thereby moving the other diverter rack 6 away. Therefore, under the action of the linkage rack 8, the electric cylinder 10 can adjust the two diverter racks 6 at the same time when working, so that the two diverter racks 6 can move in opposite directions at the same time, which is convenient for controlling the on and off of the two diverter pipes 4, so that the carbon dioxide gas can only enter one of the diverter pipes 4 and enter the inside of one of the tank bodies 1.

[0106] When the carbon dioxide gas passes through one of the shunt pipes 4 and enters the corresponding tank body 1, the carbon dioxide gas first enters the air intake cavity between the upper partition 12 and the lower partition 13. At this time, under the action of the fan 39, the carbon dioxide gas entering the air intake cavity will enter the air intake pipe 15, and the air entering the air intake pipe 15 will be discharged through the exhaust groove 16. Since the exhaust groove 16 is located at the lower part of the mesh plate 14, and the liquid level of the ammonia solution is located at the upper part of the mesh plate 14 and there is a distance between it and the lower partition 13, the carbon dioxide gas discharged through the exhaust cavity increases the contact area with the ammonia solution, and the carbon dioxide bubbles entering the ammonia solution will become smaller bubbles under the action of the mesh plate 14. In this way, the bubble volume is first made smaller, and the contact area with the ammonia solution is increased. In addition, the bubbles will burst in the process of passing through the mesh plate 14, which further improves the efficiency of the reaction with the ammonia solution and makes the capture process more stable.

[0107] At this time, the ammonia water and the carbon dioxide will react to generate ammonium bicarbonate. As the reaction continues, the corresponding motor 24 is started at the same time. The motor 24 drives the transmission shaft 23 to rotate, and relative rotation occurs between the transmission shaft 23 and the fixed cylinder 3. While the transmission shaft 23 rotates, the corresponding scraper frame 25 and the outer shell 26 are driven to rotate, thereby scraping and stirring the inner bottom wall of the tank body 1 to prevent the generated ammonium bicarbonate from being deposited at the bottom of the tank body 1. As the transmission shaft 23 rotates, the transmission shaft 23 drives the outer shell 26 to rotate, thereby driving multiple stirring shafts 29 to rotate around the axis of the outer shell 26. At this time, through the meshing of the driven bevel gear 30 and the fixed bevel gear 28, the driven bevel gear 30 can be driven to rotate, thereby driving the corresponding stirring shaft 29 to rotate. Through the setting of the stirring blade 31, the ammonia solution is stirred, and the ammonia solution and the carbon dioxide bubbles are further mixed, thereby improving the capture efficiency and making the ammonia solution uniform.

[0108] When the reaction of the ammonia solution and the carbon dioxide gas in one of the tank bodies 1 is completed, the diversion pipe 4 in use is closed and the other diversion pipe 4 is opened at the same time. Then, the ammonia solution after capturing the carbon dioxide needs to be discharged and stored. At this time, the corresponding valve 35 is opened, the water pump 33 is turned on, and the solution after the reaction is extracted through the connecting pipe 34 and the feed pipe 36. It is then discharged into the collection tank 32 for storage through the discharge pipe 37, and then the corresponding feed port 27 is opened to add new ammonia solution to the tank body 1.

[0109] Then, a separation device is used to separate the ammonium bicarbonate entering the collection tank 32 from the ammonia water, thereby capturing the carbon dioxide. The captured carbon dioxide is then desorbed by a desorbent to convert it into a gaseous state. Commonly used desorbents include alkaline substances such as sodium hydroxide. The separated carbon dioxide gas is then stored and transported to the required location.

[0110] Nitrogen, oxygen, and some other gases in the captured gas will enter the exhaust chamber between the liquid surface of the ammonia solution and the lower partition 13. Through the setting of the exhaust pipe 17, the gas is discharged into the activated carbon adsorption sleeve 21, and after being filtered by the activated carbon adsorption sleeve 21, it can be discharged, and harmful substances in the gas are filtered, thereby reducing pollution to the environment.

[0111] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon capture device based on saline-alkali land improvement, comprising a tank body (1), wherein two tank bodies (1) are provided, and characterized in that: Also includes: A diverter box (2), the diverter box (2) being arranged between the two tank bodies (1); A flow diversion component, the flow diversion component being fixedly installed in the flow diversion box (2) and used for diverting gas; The diversion component comprises: A shunt pipe (4), both sides of the shunt box (2) being connected to the shunt pipe (4); Slide rails (5), two of which are symmetrically and fixedly mounted inside the diverter box (2); A flow dividing frame (6), wherein two flow dividing frames (6) are slidably and sealingly installed on both sides of the inside of the flow dividing box (2), and the two flow dividing frames (6) are located on both sides of the slide rail (5), and the flow dividing frames (6) are slidably matched with the slide rail (5); A linkage part, the linkage part being installed between the two flow diversion racks (6) and used for controlling the sliding of the two flow diversion racks (6); The linkage unit comprises: A slide groove (7), wherein two slide grooves (7) are symmetrically arranged inside the two diversion racks (6); A linkage frame (8), the linkage frame (8) being rotatably mounted between the two slide rails (5); Slide blocks (9), the two ends of the linkage frame (8) are symmetrically and fixedly mounted with the slide blocks (9), and the slide blocks (9) are slidably matched with the slide grooves (7); An electric cylinder (10), the electric cylinder (10) being fixedly mounted on the bottom of the diverter box (2), the output end of the electric cylinder (10) being fixedly connected to one of the diverter racks (6); A gas delivery component, wherein the two tank bodies (1) are each equipped with the gas delivery component for delivering gas; A fixed cylinder (3), wherein the two tank bodies (1) are both fixedly mounted with the fixed cylinder (3); The gas delivery assembly comprises: An air inlet (11), the air inlet (11) being fixedly mounted on each of the two tank bodies (1), the air inlet (11) being in communication with the diverter pipe (4); An upper baffle (12), the upper baffle (12) being fixedly mounted inside the two tank bodies (1); A lower baffle (13), wherein the lower baffle (13) is fixedly installed inside the two tank bodies (1), the lower baffle (13) is located below the upper baffle (12), and the air inlet (11) is located between the lower baffle (13) and the upper baffle (12); A mesh plate (14), wherein the mesh plate (14) is fixedly installed inside the two tank bodies (1); The mesh plate (14), the upper partition plate (12) and the lower partition plate (13) are all fixedly connected to the fixed cylinder (3); an air intake cavity is between the upper partition plate (12) and the lower partition plate (13); and an air exhaust cavity is between the mesh plate (14) and the lower partition plate (13); Also includes: Inlet pipes (15), a plurality of the inlet pipes (15) are fixedly mounted on the two lower partitions (13) at equal angles in a circular shape, the plurality of inlet pipes (15) are in communication with the inlet cavity, and the bottom of the inlet pipes (15) is located below the mesh plate (14); Exhaust grooves (16), each of the air inlet pipes (15) having a plurality of exhaust grooves (16) formed at equal angles in a circular shape at the bottom thereof; An exhaust portion, the exhaust portion being mounted on the upper partition plate (12) and used for exhausting air; A stirring assembly, wherein the two tanks (1) are both equipped with the stirring assembly for assisting carbon capture; A product collecting assembly, the product collecting assembly being installed between the two tank bodies (1) and being used for collecting products; The exhaust section comprises: Exhaust pipes (17), a plurality of the exhaust pipes (17) being fixedly mounted on the two upper partitions (12) at equal angles in a circumferential shape, the plurality of exhaust pipes (17) being arranged alternately with the plurality of intake pipes (15), and the plurality of exhaust pipes (17) being in communication with the exhaust chamber; Lower gasket (18); a plurality of the lower gaskets (18) are fixedly mounted on the two upper partitions (12) at equal angles in a circular shape, and the plurality of the lower gaskets (18) correspond one to one to the plurality of the exhaust pipes (17); Mounting rings (19), a plurality of the mounting rings (19) being fixedly mounted at equal angles in a circular shape on the two tank bodies (1), and the plurality of the mounting rings (19) corresponding one to one with the plurality of the lower washers (18); A mounting frame (20), wherein each mounting ring (19) has the mounting frame (20) detachably and sealingly mounted therein; an activated carbon adsorption sleeve (21), the activated carbon adsorption sleeve (21) being detachably and rotatably mounted on the bottom of each mounting frame (20), the activated carbon adsorption sleeve (21) being in contact with the lower gasket (18), and the upper end of the exhaust pipe (17) being located inside the activated carbon adsorption sleeve (21); A detector (22), the detector (22) being fixedly mounted on the inner top walls of the two tank bodies (1); An exhaust component is installed between the two tank bodies (1) and is used for exhausting air.

2. The carbon capture device based on saline-alkali land improvement according to claim 1 is characterized in that: The stirring assembly comprises: A transmission shaft (23), wherein the transmission shaft (23) is rotatably mounted inside the two fixed cylinders (3); A motor (24), the motor (24) being fixedly mounted on the top of each of the two tank bodies (1), and the output end of the motor (24) being fixedly connected to the transmission shaft (23); A scraper frame (25), the bottom of each of the two transmission shafts (23) being fixedly mounted with the scraper frame (25), the scraper frame (25) being rotatably abutted against the inner bottom wall of the tank body (1); A housing (26), the housing (26) being fixedly mounted on each of the two transmission shafts (23), the housing (26) being rotatably and sealingly connected to the bottom of the fixed cylinder (3); A feed inlet (27), the two tank bodies (1) are both fixedly mounted with the feed inlet (27), the feed inlet (27) being in communication with the exhaust cavity; A stirring portion is installed inside the outer shell (26) and is used to cooperate with the scraper frame (25) to perform stirring.

3. The carbon capture device based on saline-alkali land improvement according to claim 2 is characterized in that: The stirring part comprises: A fixed bevel gear (28), the bottom of each of the two fixed cylinders (3) being fixedly mounted with the fixed bevel gear (28); A stirring shaft (29), a plurality of stirring shafts (29) being mounted on the two housings (26) so as to rotate in a circular shape at equal angles; A driven helical gear (30), each of the stirring shafts (29) being fixedly mounted with the driven helical gear (30), the driven helical gear (30) being meshed with the fixed helical gear (28); Stirring blades (31), each of the stirring shafts (29) having a plurality of stirring blades (31) fixedly mounted at equal angles in a circular shape.

4. The carbon capture device based on saline-alkali land improvement according to claim 3 is characterized in that: The product collection component: A collecting tank (32), the collecting tank (32) being arranged on a side of the tank body (1); a water pump (33), the water pump (33) being arranged on a side of the collection tank (32); A connecting pipe (34), wherein the bottoms of the two tank bodies (1) are connected by the connecting pipe (34); Valves (35), the valves (35) being fixedly mounted at both ends of the connecting pipe (34); A feed pipe (36), the feed pipe (36) being connected between an input end of the water pump (33) and the connecting pipe (34); A discharge pipe (37), the discharge pipe (37) being connected between an output end of the water pump (33) and the collection tank (32).

5. The carbon capture device based on saline-alkali land improvement according to claim 4 is characterized in that: The exhaust assembly comprises: A vent pipe (38), the vent pipe (38) being connected between the exhaust ends of the two tank bodies (1); A fan (39), the fan (39) being arranged on a side of the tank body (1); an air outlet pipe (40), the air outlet pipe (40) being connected between an input end of the fan (39) and the ventilation pipe (38); An air release pipe (41), the air release pipe (41) being connected to an output end of the fan (39).

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