A carbon dioxide capture system and method of use thereof

Abstract

The present invention belongs to the technical field of gas treatment, and in particular to a carbon dioxide capture system and a method of using the same. In view of the shortcomings of the prior art that calcium oxide cannot be replenished in time and carbon dioxide and calcium oxide cannot be fully mixed when carbon dioxide is captured, the capture system comprises a box body, a partition is fixedly installed in the box body, a reactor is fixedly installed through the partition, a heat preservation cover is fixedly installed at the bottom of the partition, the bottom of the reactor extends into the heat preservation cover, and a plurality of electric heating rods are fixedly installed at equal intervals in the heat preservation cover. When calcium oxide is used to capture carbon dioxide, the present invention can supply calcium oxide to the reactor in time according to real-time needs, and when carbon dioxide is captured, calcium hydroxide and carbon dioxide can be fully mixed, thereby facilitating the full capture of carbon dioxide.

Description

Technical Field

[0001] The present invention relates to the field of gas processing technology, and in particular to a carbon dioxide capture system and a use method thereof. Background Art

[0002] At present, carbon dioxide capture, utilization and storage technology is the main strategy to better solve the carbon emission problem. The core part of CCUS technology is carbon dioxide capture technology. At present, carbon dioxide can be captured by calcium oxide. Calcium oxide is used as an absorbent. The reaction temperature is increased by a heating system to cause a chemical reaction between calcium oxide and carbon dioxide to generate calcium carbonate, thereby achieving the capture of carbon dioxide.

[0003] There are still some shortcomings in the existing technology when using calcium oxide to capture carbon dioxide:

[0004] When carbon dioxide is continuously introduced into calcium oxide, the saturation point of calcium oxide cannot be controlled, so that calcium oxide cannot be replenished in time when reacting with carbon dioxide, resulting in incomplete capture of carbon dioxide;

[0005] When capturing carbon dioxide, it is difficult to achieve sufficient mixing of calcium oxide and carbon dioxide, which can easily lead to the problem of carbon dioxide escape.

[0006] In view of the above problems, the present invention document proposes a carbon dioxide capture system and a method of using the same. Summary of the invention

[0007] The present invention provides a carbon dioxide capture system and a method for using the same, which solves the shortcomings of the prior art that calcium oxide cannot be replenished in time and that carbon dioxide and calcium oxide cannot be fully mixed when carbon dioxide is captured.

[0008] The present invention provides the following technical solutions:

[0009] A carbon dioxide capture system comprises a box body, a partition is fixedly installed in the box body, a reactor is fixedly installed on the partition body, a heat preservation cover is fixedly installed at the bottom of the partition body, the bottom of the reactor extends into the heat preservation cover, and a plurality of electric heating rods are fixedly installed at equal intervals in the heat preservation cover. The capture system also comprises:

[0010] A mixing mechanism, which is installed on the top of the reactor, and whose bottom extends into the reactor. The mixing mechanism is used to stir and mix carbon dioxide and calcium hydroxide, and one side of the mixing mechanism extends to the outside of the box and is connected to one side of the box;

[0011] A feeding mechanism is installed on the bottom inner wall of the reactor, and the bottom of the feeding mechanism extends to the bottom of the box. The feeding mechanism is used to output the reacted calcium carbonate;

[0012] An air supply mechanism is installed on the bottom inner wall of the box, one side of the air supply mechanism is connected to the feeding mechanism, and the other side of the air supply mechanism extends to the outside of the box. The air supply mechanism is used to stably transport carbon dioxide to the reactor through the feeding mechanism to achieve a mixed reaction with calcium hydroxide;

[0013] A feeding mechanism is installed on the top of the box, and the bottom of the feeding mechanism extends into the box and is connected to the mixing mechanism. The feeding mechanism is used to feed the required calcium oxide into the reactor to achieve sufficient capture of carbon dioxide;

[0014] The detection mechanism is installed on the top of the box, and the bottom of the detection mechanism extends into the box and is connected to the feeding mechanism. The detection mechanism is used to detect the gas pressure of carbon dioxide so that calcium oxide can be added in time.

[0015] In one possible design, the mixing mechanism includes a support ring rotatably connected to the top of the reactor, a power assembly is connected to one side of the box body, one side of the power assembly extends into the box body and is connected to the support ring, a fixed plate is fixedly installed in the support ring, a transmission shaft is fixedly installed at the bottom of the fixed plate, the bottom end of the transmission shaft extends into the reactor, a reciprocating screw is fixedly provided on the transmission shaft, a nut is threadedly connected to the reciprocating screw, a movable stirring ring is fixedly installed on the nut, the movable stirring ring is in contact with the inner wall of the reactor, a supporting ring is fixedly installed in the reactor, two slide rails are symmetrically fixedly installed on the top of the supporting ring, the movable stirring ring is slidably connected to the two slide rails respectively, a mounting ring is fixedly provided on the transmission shaft below the nut, a plurality of scraping rods are fixedly installed on the mounting ring at equal intervals, the scraping rods are in contact with the bottom inner wall of the reactor, and the bottom end of the feeding mechanism is connected to the top of the fixed plate.

[0016] In a possible design, the power assembly includes a drive motor fixedly mounted on one side of the housing, the output shaft of the drive motor extends into the housing and is fixedly mounted with an active bevel gear, a bevel gear ring is fixedly sleeved on the support ring, and the active bevel gear is meshed with the bevel gear ring.

[0017] In one possible design, the feeding mechanism includes a feeding pipe fixedly mounted on the inner wall of the bottom of the reactor, the bottom end of the feeding pipe extends to the bottom of the box body, one side of the air supply mechanism extends into the feeding pipe, a valve core is rotatably connected in the feeding pipe, a knob is fixedly mounted on one side of the valve core, and one side of the knob extends to the outside of the feeding pipe.

[0018] In one possible design, the air supply mechanism includes a delivery pump fixedly mounted on the inner wall of the bottom of the box body, the air outlet end of the delivery pump extends into the discharge pipe and is fixedly connected to the inner wall of one side of the discharge pipe, the suction end of the delivery pump extends to the outside of the box body and is fixedly mounted with a mounting cover, a sealing plate is sealed inside the mounting cover, an air pipe is fixedly mounted on the sealing plate, one end of the air pipe extends to the outside of the mounting cover, and a plurality of limit assemblies are evenly spaced on the mounting cover, and the plurality of limit assemblies are used to limit the sealing plate.

[0019] In a possible design, the limit assembly includes a limit frame fixedly mounted on the outside of the mounting cover, a limit plate slidably connected to the limit frame, one side of the limit plate extends to one side of the sealing plate and is fixedly connected to one side of the sealing plate, a compression spring is fixedly mounted on the inner wall of one side of the limit frame, and one end of the compression spring is fixedly connected to the limit plate.

[0020] In one possible design, the feeding mechanism includes a support cover fixedly installed on the top of the box body at equal intervals, a vibrator fixedly installed in the support cover, a support rod installed on the vibrator, the top of the support rod extends to the top of the support cover, the top of multiple support rods is fixedly installed with the same fixing ring, a material box is fixedly installed in the fixing ring, a conical tube is fixedly installed at the bottom of the material box, the bottom end of the conical tube extends into the box body and is rotatably connected with a connecting ring, the connecting ring is fixedly installed on the top of the support ring, a connecting shaft is fixedly installed on the top of the fixing plate, the top of the connecting shaft extends into the conical tube, a spiral blade located in the conical tube is fixedly sleeved on the connecting shaft, a feeding hole is opened on the inner wall of one side of the top of the material box, a door panel for sealing the feeding hole is slidably connected to the top of the material box, a push plate is fixedly installed on the top of the door panel, the top of the push plate passes through the feeding hole and extends to the top of the material box, and the bottom of the detection mechanism extends into the conical tube and is connected to the inner wall of one side of the conical tube.

[0021] In one possible design, a stepper motor is fixedly installed on the top of the material box, and a baffle is fixedly installed at the discharge port of the material box. A discharge hole is opened on the baffle, and an arc-shaped stopper plate for blocking the discharge hole is rotatably connected to the top of the baffle. A drive shaft is fixedly installed on the top of the arc-shaped stopper plate, and the top of the drive shaft passes through the top inner wall of the material box and extends to the top of the material box. A driven bevel gear located above the material box is fixedly sleeved on the drive shaft, and a connecting bevel gear is fixedly sleeved on the output shaft of the stepper motor, and the connecting bevel gear is meshed with the driven bevel gear.

[0022] In one possible design, the detection mechanism includes a detection box fixedly mounted on the top of the box body, a flow tube fixedly mounted on the bottom inner wall of one side of the detection box, the bottom end of the flow tube extends into the conical tube, the flow tube is fixedly connected to the inner wall of one side of the conical tube, a pressure plate located above the flow tube is sealingly and slidably connected in the detection box, a push rod is fixedly mounted at the top center position of the pressure plate, the top end of the push rod extends to the top of the detection box and a pressure plate is fixedly mounted, a pressure sensor is fixedly mounted on the top of the detection box, a buzzer is electrically connected to the pressure sensor, and the pressure plate is in contact with the pressure sensor.

[0023] The method for using the carbon dioxide capture system comprises the following steps:

[0024] S1. Calcium oxide addition and preheating

[0025] Add calcium oxide to the material box, pour water into the reactor, and energize the electric heating rod to preheat the water in the reactor.

[0026] S2. Feeding hole opened

[0027] Start the stepper motor, open the discharge hole through gear transmission, and transport the calcium oxide to the conical tube.

[0028] S3. Calcium oxide mixed with water

[0029] The drive motor is started, and the spiral blades are driven to rotate through gear transmission. Calcium oxide falls on the spiral blades and is transported to the reactor to mix with water.

[0030] S4. Stirring and forming calcium hydroxide

[0031] The rotation of the support ring drives the reciprocating screw and the transmission shaft, and the nut reciprocates longitudinally, driving the moving stirring ring and the scraper rod. The calcium oxide is mixed with water and stirred to form calcium hydroxide.

[0032] S5. Blocking of feeding hole

[0033] After the calcium oxide is added, the stepper motor is started in reverse to seal the feed hole.

[0034] S6. CO2 Mixing and Capture

[0035] The delivery pump is started to deliver carbon dioxide to the feed pipe, and the carbon dioxide gas is delivered upward to the reactor to mix with calcium hydroxide to form calcium carbonate and water.

[0036] S7. Saturation treatment and calcium oxide supplementation

[0037] After calcium hydroxide absorbs carbon dioxide to saturation, the gas floats upward to the detection box, the air pressure on the pressure plate increases, pushing the pressure plate to pressurize the pressure sensor. When the pressure sensor is pressurized, the buzzer works, prompting you to add calcium oxide.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] In the present invention, the mixing mechanism is set up, and the supporting ring can be driven to rotate by starting the power component, thereby driving the transmission shaft to rotate, and at this time, the reciprocating screw can be driven to rotate, so that under the threaded transmission action with the nut, the nut can be made to perform longitudinal reciprocating motion along the axial direction of the reciprocating screw, and when the nut moves, it can drive the movable stirring ring to perform longitudinal reciprocating motion, and when the transmission shaft rotates, it can drive multiple scraper rods to perform circular motion, so that after the calcium oxide is put into the reactor, the calcium oxide can be stirred, so that the calcium oxide is mixed with the water in the reactor to form calcium hydroxide, and then after the carbon dioxide is introduced into the reactor, the carbon dioxide can be mixed with the calcium hydroxide under the stirring action of the movable stirring ring to obtain calcium carbonate, so that the carbon dioxide can be captured;

[0041] In the present invention, by providing a discharge mechanism, after calcium oxide has completed capturing carbon dioxide and formed calcium carbonate, the valve core can be rotated by turning the knob, so that the discharge pipe is in an open state, so that the calcium carbonate can be discharged;

[0042] In the present invention, by setting the gas supply mechanism, the sealing plate can be set in the installation cover to seal the installation cover, so that the gas pipe and the installation cover can be connected by card assembly, and one end of the gas pipe is connected to the carbon dioxide storage tank. At this time, when the delivery pump is started, the carbon dioxide can be delivered to the feed pipe through the gas pipe and the delivery pump. At this time, the valve core can seal the feed pipe, and the carbon dioxide gas can be delivered upward to the reactor through the feed pipe so as to be mixed with calcium hydroxide for reaction;

[0043] In the present invention, by setting up a feeding mechanism, after the calcium oxide is put into the material box, when the connecting shaft rotates with the fixed plate, the spiral blade can be driven to rotate, so that the calcium oxide can be stably transported downward. At the same time, multiple vibrators are started to make the material box vibrate, so as to avoid the accumulation of calcium oxide in the material box and stably transport it downward.

[0044] In the present invention, by setting up a detection mechanism, when calcium hydroxide absorbs carbon dioxide and is in a saturated state, the carbon dioxide gas can float upward, so that it can be transported to the flow tube through the tapered tube, and then to the detection box through the flow tube. At this time, the air pressure on the pressure plate will increase, and it may have a tendency to move upward. The pressure plate can be pushed upward by the push rod to apply pressure to the pressure sensor. At this time, after the pressure sensor is subjected to a strong pressure, the buzzer can be activated to prompt the staff to start the stepper motor to open the discharge hole and add calcium oxide to the reactor.

[0045] When the present invention utilizes calcium oxide to capture carbon dioxide, the calcium oxide can be supplied into the reactor in a timely manner according to real-time needs, and when the carbon dioxide is captured, the calcium hydroxide and the carbon dioxide can be fully mixed, thereby facilitating the full capture of the carbon dioxide and having good use stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A three-dimensional schematic diagram of the structure of the carbon dioxide capture system provided in Example 1 of the present invention from a first perspective;

[0047] Figure 2 A three-dimensional schematic diagram of the structure of the carbon dioxide capture system provided in Example 1 of the present invention from a second viewing angle;

[0048] Figure 3 This is a schematic diagram of the main cross-sectional structure of the carbon dioxide capture system provided in Examples 1 and 2 of the present invention;

[0049] Figure 4 A three-dimensional schematic diagram of a driving motor, an active bevel gear, a bevel gear ring, a reciprocating screw, a nut, a movable stirring ring and a connection structure of two slide rails of a carbon dioxide capture system provided in Example 1 of the present invention;

[0050] Figure 5 A three-dimensional schematic diagram of a cross-sectional structure of a material box of a carbon dioxide capture system provided in Example 2 of the present invention;

[0051] Figure 6 A bottom-up three-dimensional schematic diagram of a cross-sectional structure of a material box of a carbon dioxide capture system provided in Example 2 of the present invention;

[0052] Figure 7 A main cross-sectional schematic diagram of a support cover, a vibrator and a support rod connection structure of a carbon dioxide capture system provided in Example 2 of the present invention;

[0053] Figure 8 A three-dimensional schematic diagram of the connection structure of the gas pipeline, the detection box, the pressure plate and the pressure sensor of the carbon dioxide capture system provided in Example 2 of the present invention;

[0054] Fig. 9 This is a schematic main cross-sectional view of the internal structure of the detection box of the carbon dioxide capture system provided in Example 2 of the present invention.

[0055] Reference numerals:

[0056] 1. Box; 2. Partition; 3. Reactor; 4. Support ring; 5. Drive motor; 6. Active bevel gear; 7. Bevel gear ring; 8. Connecting ring; 9. Slide rail; 10. Fixed plate; 11. Transmission shaft; 12. Support ring; 13. Mounting ring; 14. Reciprocating screw; 15. Nut; 16. Mobile stirring ring; 17. Scraper rod; 18. Feeding pipe; 19. Valve core; 20. Knob; 21. Delivery pump; 22. Mounting cover; 23. Air pipe; 24. Closing plate; 25. Limiting frame; 26. Limiting plate; 27. Compression spring; 2 8. Insulation cover; 29. ​​Electric heating rod; 30. Conical tube; 31. Connecting shaft; 32. Spiral blade; 33. Support cover; 34. Support rod; 35. Vibrator; 36. Fixing ring; 37. Material box; 38. Door panel; 39. Push plate; 40. Stepper motor; 41. Connecting bevel gear; 42. Driving shaft; 43. Driven bevel gear; 44. Baffle; 45. Feeding hole; 46. Arc stop plate; 47. Flow tube; 48. Detection box; 49. Pressure plate; 50. Push rod; 51. Pressure plate; 52. Pressure sensor. DETAILED DESCRIPTION

[0057] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0058] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0059] Example 1

[0060] Reference Figure 1-Figure 4A carbon dioxide capture system of this embodiment includes a box body 1, and a partition 2 is fixedly installed inside the box body 1. A reactor 3 is fixedly installed on the partition 2 to ensure that the reactor 3 is stable and does not shake. A heat preservation cover 28 is fixedly installed at the bottom of the partition 2, and the bottom of the reactor 3 is extended into the heat preservation cover 28. A plurality of electric heating rods 29 are fixedly installed at equal intervals in the heat preservation cover 28 to provide the temperature required for the reaction.

[0061] Next, install a mixing mechanism. Install the mixing mechanism on the top of the reactor 3 and ensure that its bottom extends into the reactor 3. The mixing mechanism is used to stir and mix carbon dioxide and calcium hydroxide. Extend one side of the mixing mechanism to the outside of the box 1 and connect it to one side of the box 1.

[0062] Then, a feeding mechanism is installed on the bottom inner wall of the reaction kettle 3, and its bottom is ensured to extend to the bottom of the box body 1. The feeding mechanism is used to output the reacted calcium carbonate.

[0063] At the same time, install the gas supply mechanism, install the gas supply mechanism on the bottom inner wall of the box body 1, and ensure that one side of the gas supply mechanism is connected to the feeding mechanism, and the other side extends to the outside of the box body 1. The gas supply mechanism is used to stably transport carbon dioxide to the reactor 3 through the feeding mechanism to achieve a mixed reaction with calcium hydroxide.

[0064] Specifically, the installation steps of the mixing mechanism are as follows: a support ring 4 is rotatably connected to the top of the reactor 3, a power assembly is connected to one side of the box body 1, and one side of the power assembly is extended into the box body 1 and connected to the support ring 4, a fixed plate 10 is fixedly installed in the support ring 4, and a transmission shaft 11 is fixedly installed at the bottom of the fixed plate 10, ensuring that the bottom end of the transmission shaft 11 extends into the reactor 3, a reciprocating screw 14 is fixedly sleeved on the transmission shaft 11, and a nut 15 is threadedly connected to the reciprocating screw 14, and a nut 15 is fixed on the nut 15. A movable stirring ring 16 is installed to ensure that the movable stirring ring 16 contacts the inner wall of the reactor 3, a support ring 12 is fixedly installed in the reactor 3, and two slide rails 9 are symmetrically fixedly installed on the top of the support ring 12, and the movable stirring ring 16 is slidably connected to the two slide rails 9 respectively, a mounting ring 13 located below the nut 15 is fixedly sleeved on the transmission shaft 11, and a plurality of scraper rods 17 are fixedly installed on the mounting ring 13 at equal intervals to ensure that the scraper rods 17 contact the bottom inner wall of the reactor 3, and the bottom end of the feeding mechanism is connected to the top of the fixed plate 10.

[0065] The installation steps of the power assembly are as follows: a driving motor 5 is fixedly installed on one side of the box body 1, and the output shaft of the driving motor 5 is extended into the box body 1, an active bevel gear 6 is fixedly installed, a bevel gear ring 7 is fixedly sleeved on the support ring 4, and it is ensured that the active bevel gear 6 is meshed with the bevel gear ring 7.

[0066] When carbon dioxide needs to be captured, the drive motor 5 is started to drive the active bevel gear 6 to rotate. Under the meshing transmission action of the bevel gear ring 7, the support ring 4 starts to rotate, thereby driving the transmission shaft 11 to rotate. At this time, the reciprocating screw 14 also starts to rotate. Under the threaded transmission action with the nut 15, the nut 15 performs longitudinal reciprocating motion along the axial direction of the reciprocating screw 14. The movement of the nut 15 drives the moving stirring ring 16 to perform longitudinal reciprocating motion. At the same time, under the rotation of the transmission shaft 11, multiple scraper rods 17 perform circular motion.

[0067] After calcium oxide is added into the reactor 3, the mobile stirring ring 16 and the scraper 17 begin to stir the calcium oxide so that it mixes with the water in the reactor 3 to form calcium hydroxide. Subsequently, carbon dioxide is stably introduced into the reactor 3 through the gas supply mechanism. Under the stirring action of the mobile stirring ring 16, the carbon dioxide and calcium hydroxide react with each other to form calcium carbonate. After the reaction is completed, the calcium carbonate is output through the discharge mechanism, thereby realizing the capture of carbon dioxide.

[0068] Next, it also includes a feeding mechanism, in which a feeding pipe 18 is fixedly installed on the bottom inner wall of the reactor 3 to ensure that the bottom end of the feeding pipe 18 extends to the bottom of the box body 1, and then, a valve core 19 is rotatably connected in the feeding pipe 18, and a knob 20 is fixedly installed on one side of the valve core 19 to extend one side of the knob 20 to the outside of the feeding pipe 18. In this way, after the calcium oxide completes the capture of carbon dioxide, calcium carbonate is formed. At this time, the valve core 19 can be driven to rotate by rotating the knob 20, thereby opening the feeding pipe 18 to discharge the calcium carbonate.

[0069] Next, it also includes an air supply mechanism, in which a delivery pump 21 is fixedly installed on the bottom inner wall of the box body 1, and the air outlet end of the delivery pump 21 is extended into the discharge pipe 18 and fixedly connected to the inner wall of one side of the discharge pipe 18. Then, the suction end of the delivery pump 21 is extended to the outside of the box body 1, and a mounting cover 22 is fixedly installed. A sealing plate 24 is sealed in the mounting cover 22, and an air pipe 23 is fixedly installed through the sealing plate 24 to ensure that one end of the air pipe 23 extends to the outside of the mounting cover 22.

[0070] In order to limit the sealing plate 24, we set a plurality of limit assemblies at equal intervals on the mounting cover 22, each limit assembly includes a limit frame 25 fixedly mounted on the outside of the mounting cover 22, and a limit plate 26 slidably connected in the limit frame 25, one side of the limit plate 26 is extended to one side of the sealing plate 24, and fixedly connected to one side of the sealing plate 24, and then, a compression spring 27 is fixedly installed on the inner wall of one side of the limit frame 25, so that one end of the compression spring 27 is fixedly connected to the limit plate 26, so that after the sealing plate 24 is set in the mounting cover 22, the limit plate 26 can be released, and the compression spring 27 in a stressed state will push the limit plate 26 to move, and the limit plate 26 is used to block the sealing plate 24, thereby realizing stable limit clamping of the sealing plate 24.

[0071] Finally, one end of the gas pipe 23 is connected to the carbon dioxide storage tank. When the delivery pump 21 is started, the carbon dioxide will be delivered to the feed pipe 18 through the gas pipe 23 and the delivery pump 21. At this time, the valve core 19 will block the feed pipe 18, and the carbon dioxide gas will be delivered upward to the reactor 3 through the feed pipe 18 to react with the calcium hydroxide.

[0072] Example 2

[0073] Reference Figure 3 , Figure 5-Figure 9 This embodiment is based on Example 1. Regarding the carbon dioxide capture system proposed in Example 1, a feeding mechanism is installed on the top of the box body 1. The feeding mechanism includes a support cover 33. A vibrator 35 is fixedly installed in the support cover 33. A support rod 34 is installed on the vibrator 35. The top end of the support rod 34 extends to the top of the support cover 33, and the top ends of multiple support rods 34 are fixedly connected together by a fixing ring 36.

[0074] A material box 37 is fixedly installed in the fixing ring 36 , a conical tube 30 is fixedly installed at the bottom of the material box 37 , the bottom end of the conical tube 30 extends into the box body 1 and is rotatably connected to a connecting ring 8 , which is fixedly installed on the top of the supporting ring 4 .

[0075] A connecting shaft 31 is fixedly installed on the top of the fixing plate 10 , the top end of the connecting shaft 31 extends into the tapered tube 30 , and a spiral blade 32 located in the tapered tube 30 is fixedly sleeved on the connecting shaft 31 .

[0076] A feeding hole is opened on the inner wall of one side of the top of the material box 37, and a door panel 38 is slidably connected to the top of the material box 37, the door panel 38 is used to cover the feeding hole, and a push plate 39 is fixedly installed on the top of the door panel 38, and the top of the push plate 39 passes through the feeding hole and extends to the top of the material box 37.

[0077] A detection mechanism is installed on the top of the box body 1 , and the bottom of the detection mechanism extends into the conical tube 30 and is connected to an inner wall of one side of the conical tube 30 .

[0078] Calcium oxide is put into the material box 37. When the connecting shaft 31 rotates with the fixing plate 10, the spiral blade 32 can be driven to rotate, so that the calcium oxide is stably transported downward.

[0079] The plurality of vibrators 35 are started to put the material box 37 in a vibrating state, thereby preventing the calcium oxide from being accumulated in the material box 37 and ensuring that the calcium oxide can be stably transported downward.

[0080] A stepper motor 40 is fixedly installed on the top of the material box 37, and a baffle 44 is fixedly installed at the discharge port of the material box 37. A discharge hole 45 is opened on the baffle 44, and the top of the baffle 44 is rotatably connected to an arc-shaped stop plate 46, which is used to block the discharge hole 45.

[0081] A driving shaft 42 is fixedly mounted on the top of the arc-shaped stop plate 46 . The top end of the driving shaft 42 passes through the top inner wall of the material box 37 and extends to the top of the material box 37 . A driven bevel gear 43 located above the material box 37 is fixedly sleeved on the driving shaft 42 .

[0082] A connecting bevel gear 41 is fixedly mounted on the output shaft of the stepper motor 40, and the connecting bevel gear 41 is meshed with the driven bevel gear 43. By starting the stepper motor 40, the connecting bevel gear 41 can be driven to rotate. At this time, under the meshing transmission action of the driven bevel gear 43, the driving shaft 42 can be driven to rotate, and then the arc-shaped stop plate 46 can be driven to rotate and adjusted.

[0083] By controlling the rotation of the stepper motor 40, the position of the arc-shaped stop plate 46 can be adjusted. When the arc-shaped stop plate 46 is moved to block the discharge hole 45, calcium oxide can be prevented from being transported downward; when the arc-shaped stop plate 46 does not block the discharge hole 45, calcium oxide can be stably transported downward. In this way, the delivery amount of calcium oxide can be controlled and appropriate calcium oxide can be transported to the reactor 3.

[0084] Next, we need to fix a detection box 48 on the top of the box body 1, and on the bottom inner wall of one side of the detection box 48, we need to fix a flow tube 47. The bottom end of the flow tube 47 should extend into the conical tube 30 and be fixedly connected to the inner wall of one side of the conical tube 30. In this way, when gas flows in the conical tube 30, it can smoothly enter the detection box 48 through the flow tube 47.

[0085] Next, we set a pressure plate 49 that can be sealed and slidably connected in the detection box 48. The pressure plate 49 should be located above the flow tube 47. At the top center position of the pressure plate 49, we fixedly install a push rod 50. The top end of the push rod 50 should extend to the top of the detection box 48, and a pressure plate 51 is fixedly installed. In this way, when the pressure plate 49 is subjected to air pressure, the pressure plate 51 can be pushed upward by the push rod 50.

[0086] Then, we fix a pressure sensor 52 on the top of the detection box 48. This pressure sensor 52 should be in contact with the pressure plate 51. At the same time, we electrically connect the pressure sensor 52 with the buzzer. In this way, when the pressure plate 51 applies pressure to the pressure sensor 52, the pressure sensor 52 can sense the pressure and transmit a signal to the buzzer.

[0087] Now, let us describe the working process of this detection mechanism: when calcium hydroxide absorbs carbon dioxide and is in a saturated state, the carbon dioxide gas will float upward, be transported to the flow tube 47 through the conical tube 30, and then be transported to the detection box 48 through the flow tube 47. At this time, the air pressure on the pressure plate 49 will increase, and it has a tendency to move upward. Therefore, the pressure plate 49 will push the pressure plate 51 upward through the push rod 50, and pressurize the pressure sensor 52. When the pressure sensor 52 is subjected to a strong pressure, it will transmit a signal to the buzzer, causing the buzzer to work, prompting the staff to start the stepper motor 40 to open the discharge hole 45 and replenish calcium oxide into the reactor 3.

[0088] The present invention provides a method for using a carbon dioxide capture system, comprising the following steps:

[0089] S1, putting calcium oxide into the material box 37, injecting water into the reactor 3, and energizing the plurality of electric heating rods 29 to heat the reactor 3, so as to preheat the water;

[0090] S2, starting the stepper motor 40 can drive the connected bevel gear 41 to rotate, and under the meshing transmission of the driven bevel gear 43, the driving shaft 42 can be driven to rotate, and the arc-shaped stop plate 46 can be driven to rotate and adjust, so that the discharge hole 45 is in an open state, and the calcium oxide can be transported to the tapered tube 30 through the discharge hole 45;

[0091] S3, start the driving motor 5 to drive the active bevel gear 6 to rotate, and at this time, under the meshing transmission action with the bevel gear ring 7, the support ring 4 can be driven to rotate, and when the support ring 4 rotates, the connecting shaft 31 can be driven to rotate, thereby driving the spiral blade 32 to rotate, and the calcium oxide falling on the spiral blade 32 can fall into the reactor 3 under the output of the spiral blade 32, so that the calcium oxide can be mixed with the water in the reactor 3;

[0092] S4, when the support ring 4 rotates, it can drive the transmission shaft 11 to rotate, and at this time, it can drive the reciprocating screw 14 to rotate, so that under the threaded transmission action with the nut 15, the nut 15 can be made to reciprocate longitudinally along the axial direction of the reciprocating screw 14, and when the nut 15 moves, it can drive the movable stirring ring 16 to reciprocate longitudinally, and when the transmission shaft 11 rotates, it can drive the plurality of scrapers 17 to move in a circular manner, so that after the calcium oxide is put into the reactor 3, the calcium oxide can be stirred, so that the calcium oxide is mixed with the water in the reactor 3 to form calcium hydroxide;

[0093] S5, after the calcium oxide is added, the stepper motor 40 can be started in reverse to drive the arc-shaped stop plate 46 to move in reverse to block the feed hole 45;

[0094] S6, start the delivery pump 21, and deliver the carbon dioxide to the feed pipe 18 through the gas delivery pipe 23 and the delivery pump 21. At this time, the valve core 19 can block the feed pipe 18, and the carbon dioxide gas can be delivered upward to the reactor 3 through the feed pipe 18. At this time, the moving stirring ring 16 and the plurality of scrapers 17 in motion can mix the calcium hydroxide and the carbon dioxide to form calcium carbonate and water, thereby capturing the carbon dioxide;

[0095] S7. When the calcium hydroxide absorbs carbon dioxide and is in a saturated state, the carbon dioxide gas can float upward and be transported to the flow tube 47 through the tapered tube 30, and then to the detection box 48 through the flow tube 47. At this time, the air pressure on the pressure plate 49 will increase, and it may have a tendency to move upward. The push rod 50 can push the pressure plate 51 upward to apply pressure to the pressure sensor 52. At this time, after the pressure sensor 52 is subjected to a strong pressure, the buzzer can be activated to prompt the staff to start the stepper motor 40 to open the discharge hole 45 and add calcium oxide to the reactor 3.

[0096] Working principle: First, calcium oxide is put into the material box 37, and water is injected into the reactor 3 at the same time, and multiple electric heating rods 29 are energized to heat the reactor 3, so that the water can be heated in advance, and then the stepper motor 40 can be started to drive the connecting bevel gear 41 to rotate. At this time, under the meshing transmission action of the driven bevel gear 43, the drive shaft 42 can be driven to rotate, and the arc-shaped stop plate 46 can be driven to rotate and adjust, so that the discharge hole 45 is in an open state, and the calcium oxide can be transported to the conical tube 30 through the discharge hole 45, and then the drive motor 5 can be started to drive the active bevel gear 6 to rotate. At this time, under the meshing transmission action with the bevel gear ring 7, the support ring 4 can be driven to rotate. When the support ring 4 rotates, the connecting shaft 31 can be driven to rotate, thereby driving the spiral blade 32 to rotate, and the calcium oxide falling on the spiral blade 32 can fall into the reactor 3 under the output of the spiral blade 32, so that the calcium oxide can be mixed with the water in the reactor 3, and when the support ring 4 rotates, the transmission shaft 11 can be driven to rotate, and at this time, the reciprocating screw 14 can be driven to rotate, so that under the threaded transmission action with the nut 15, the nut 15 can be made to reciprocate longitudinally along the axial direction of the reciprocating screw 14, and when the nut 15 moves, it can drive the movable stirring ring 16 to reciprocate longitudinally, and when the transmission shaft 11 is driven When the stepper motor 40 is rotated, it can drive the plurality of scraper rods 17 to perform circular motion, so that after the calcium oxide is added into the reactor 3, the calcium oxide can be stirred, so that the calcium oxide is mixed with the water in the reactor 3 to form calcium hydroxide. After the calcium oxide is added, the stepper motor 40 can be reversely started to drive the arc-shaped flow-stop plate 46 to move in the reverse direction to block the discharge hole 45. Then the delivery pump 21 can be started to deliver carbon dioxide to the discharge pipe 18 through the gas delivery pipe 23 and the delivery pump 21. At this time, the valve core 19 can block the discharge pipe 18, and the carbon dioxide gas can be transported upward through the discharge pipe 18 into the reactor 3. At this time, the moving stirring ring 16 and the plurality of scraper rods 17 in motion can It is possible to mix calcium hydroxide and carbon dioxide to form calcium carbonate and water, and to capture carbon dioxide. When calcium hydroxide absorbs carbon dioxide and is in a saturated state, the carbon dioxide gas can float upward, and can be transported to the flow tube 47 through the tapered tube 30, and then transported to the detection box 48 through the flow tube 47. At this time, the air pressure on the pressure plate 49 will increase, and it may have a tendency to move upward, so the pressure plate 51 can be pushed upward by the push rod 50 to apply pressure to the pressure sensor 52. At this time, after the pressure sensor 52 is subjected to a strong pressure, the buzzer can be operated, prompting the staff to start the stepper motor 40 to open the discharge hole 45 and replenish calcium oxide into the reactor 3.

[0097] However, as is well known to those skilled in the art, the working principles and wiring methods of the drive motor 5, the electric heating rod 29, the vibrator 35 and the stepper motor 40 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0098] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A carbon dioxide capture system, comprising a box (1), a partition (2) fixedly installed in the box (1), a reaction kettle (3) fixedly installed on the partition (2), a heat preservation cover (28) fixedly installed at the bottom of the partition (2), the bottom of the reaction kettle (3) extends into the heat preservation cover (28), and a plurality of electric heating rods (29) are fixedly installed at equal intervals in the heat preservation cover (28), characterized in that: The capture system also includes: A mixing mechanism, the mixing mechanism being mounted on the top of the reaction kettle (3), the bottom of the mixing mechanism extending into the reaction kettle (3), the mixing mechanism being used to stir and mix the carbon dioxide and calcium hydroxide, and one side of the mixing mechanism extending to the outside of the box (1) and connected to one side of the box (1); A material discharge mechanism, the material discharge mechanism is mounted on the bottom inner wall of the reaction kettle (3), the bottom of the material discharge mechanism extends to the bottom of the box body (1), and the material discharge mechanism is used to discharge the reacted calcium carbonate; An air supply mechanism, the air supply mechanism is installed on the bottom inner wall of the box body (1), one side of the air supply mechanism is connected to the feeding mechanism, and the other side of the air supply mechanism extends to the outside of the box body (1), and the air supply mechanism is used to stably transport carbon dioxide to the reaction kettle (3) through the feeding mechanism to achieve a mixing reaction with calcium hydroxide; A feeding mechanism, the feeding mechanism is installed on the top of the box (1), the bottom of the feeding mechanism extends into the box (1) and is connected to the mixing mechanism, the feeding mechanism is used to feed the required calcium oxide into the reactor (3) so as to achieve sufficient capture of carbon dioxide; A detection mechanism, the detection mechanism is installed on the top of the box (1), the bottom of the detection mechanism extends into the box (1) and is connected to the feeding mechanism, the detection mechanism is used to detect the gas pressure of carbon dioxide so that calcium oxide can be added in time; The mixing mechanism comprises a support ring (4) rotatably connected to the top of the reaction kettle (3); a power assembly is connected to one side of the box body (1); one side of the power assembly extends into the box body (1) and is connected to the support ring (4); a fixed plate (10) is fixedly installed in the support ring (4); a transmission shaft (11) is fixedly installed at the bottom of the fixed plate (10); the bottom end of the transmission shaft (11) extends into the reaction kettle (3); a reciprocating screw (14) is fixedly sleeved on the transmission shaft (11); a nut (15) is threadedly connected to the reciprocating screw (14); a movable stirring member is fixedly installed on the nut (15). A ring (16), the movable stirring ring (16) contacts the inner wall of the reaction kettle (3), a support ring (12) is fixedly installed in the reaction kettle (3), two slide rails (9) are symmetrically fixedly installed on the top of the support ring (12), the movable stirring ring (16) is slidably connected to the two slide rails (9), a mounting ring (13) located below the nut (15) is fixedly sleeved on the transmission shaft (11), a plurality of scraping rods (17) are fixedly installed on the mounting ring (13) at equal intervals, the scraping rods (17) contact the bottom inner wall of the reaction kettle (3), and the bottom end of the feeding mechanism is connected to the top of the fixed plate (10); The feeding mechanism comprises a feeding pipe (18) fixedly mounted on the inner wall of the bottom of the reaction kettle (3), the bottom end of the feeding pipe (18) extending to the bottom of the box body (1), one side of the air supply mechanism extending into the feeding pipe (18), a valve core (19) rotatably connected in the feeding pipe (18), a knob (20) fixedly mounted on one side of the valve core (19), and one side of the knob (20) extending to the outside of the feeding pipe (18); The air supply mechanism comprises a delivery pump (21) fixedly mounted on the inner wall of the bottom of the box body (1), the air outlet end of the delivery pump (21) extending into the feed pipe (18) and fixedly connected to the inner wall of one side of the feed pipe (18), the suction end of the delivery pump (21) extending to the outside of the box body (1) and fixedly mounted with a mounting cover (22), a sealing plate (24) being sealed in the mounting cover (22), an air delivery pipe (23) being fixedly mounted through the sealing plate (24), one end of the air delivery pipe (23) extending to the outside of the mounting cover (22), a plurality of limit assemblies being arranged at equal intervals on the mounting cover (22), the plurality of limit assemblies being used to limit the sealing plate (24); The feeding mechanism comprises a support cover (33) fixedly mounted at equal intervals on the top of the box body (1), a vibrator (35) fixedly mounted inside the support cover (33), a support rod (34) mounted on the vibrator (35), the top end of the support rod (34) extending to the top of the support cover (33), a same fixing ring (36) fixedly mounted on the top ends of the plurality of support rods (34), a material box (37) fixedly mounted inside the fixing ring (36), a conical tube (30) fixedly mounted on the bottom of the material box (37), the bottom end of the conical tube (30) extending into the box body (1) and rotatably connected to a connecting ring (8), the connecting ring (8) fixedly mounted on the top of the support ring (4) A connecting shaft (31) is fixedly mounted on the top of the fixed plate (10), the top end of the connecting shaft (31) extends into the conical tube (30), a spiral blade (32) located in the conical tube (30) is fixedly sleeved on the connecting shaft (31), a feeding hole is opened on the inner wall of one side of the top of the material box (37), a door plate (38) for sealing the feeding hole is slidably connected to the top of the material box (37), a push plate (39) is fixedly mounted on the top of the door plate (38), the top of the push plate (39) passes through the feeding hole and extends to the top of the material box (37), and the bottom of the detection mechanism extends into the conical tube (30) and is connected to the inner wall of one side of the conical tube (30); A stepper motor (40) is fixedly mounted on the top of the material box (37); a baffle (44) is fixedly mounted at the material outlet of the material box (37); a material discharge hole (45) is formed on the baffle (44); an arc-shaped stop plate (46) for blocking the material discharge hole (45) is rotatably connected to the top of the baffle (44); a drive shaft (42) is fixedly mounted on the top of the arc-shaped stop plate (46); the top end of the drive shaft (42) passes through the top inner wall of the material box (37) and extends to the top of the material box (37); a driven bevel gear (43) located above the material box (37) is fixedly sleeved on the drive shaft (42); a connecting bevel gear (41) is fixedly sleeved on the output shaft of the stepper motor (40); the connecting bevel gear (41) is meshed with the driven bevel gear (43); The detection mechanism comprises a detection box (48) fixedly mounted on the top of the box body (1); a flow tube (47) is fixedly mounted on the inner wall of the bottom of one side of the detection box (48); the bottom end of the flow tube (47) extends into the conical tube (30); the flow tube (47) is fixedly connected to the inner wall of one side of the conical tube (30); a pressure plate (49) located above the flow tube (47) is sealingly and slidably connected in the detection box (48); a push rod (50) is fixedly mounted at the center position of the top of the pressure plate (49); the top end of the push rod (50) extends to the top of the detection box (48) and is fixedly mounted with a pressure plate (51); a pressure sensor (52) is fixedly mounted on the top of the detection box (48); a buzzer is electrically connected to the pressure sensor (52); and the pressure plate (51) is in contact with the pressure sensor (52).

2. The carbon dioxide capture system according to claim 1, characterized in that The power assembly comprises a driving motor (5) fixedly mounted on one side of the housing (1); the output shaft of the driving motor (5) extends into the housing (1) and is fixedly mounted with an active bevel gear (6); a bevel gear ring (7) is fixedly sleeved on the support ring (4); and the active bevel gear (6) is meshed with the bevel gear ring (7).

3. The carbon dioxide capture system according to claim 2, characterized in that The limit assembly comprises a limit frame (25) fixedly mounted on the outside of the mounting cover (22), a limit plate (26) being slidably connected inside the limit frame (25), one side of the limit plate (26) extending to one side of the sealing plate (24) and being fixedly connected to one side of the sealing plate (24), a compression spring (27) being fixedly mounted on an inner wall of one side of the limit frame (25), one end of the compression spring (27) being fixedly connected to the limit plate (26).

4. The method for using the carbon dioxide capture system according to claim 3, characterized in that: The following steps are involved: S1. Calcium oxide delivery and preheating: Calcium oxide is delivered to the material box (37), water is injected into the reactor (3), and the electric heating rod (29) is powered to preheat the water in the reactor (3); S2. Opening the feeding hole: starting the stepper motor (40), opening the feeding hole (45) through the gear transmission, and transporting the calcium oxide to the conical tube (30); S3. Mixing calcium oxide with water: Starting the drive motor (5), driving the spiral blade (32) to rotate through the gear transmission, the calcium oxide falls on the spiral blade (32), and is transported to the reactor (3) to mix with water; S4. Stirring and forming calcium hydroxide: The support ring (4) rotates to drive the reciprocating screw (14) and the drive shaft (11), and the nut (15) reciprocates longitudinally, driving the moving stirring ring (16) and the scraper (17), and the calcium oxide is mixed with water and stirred to form calcium hydroxide; S5. After the feeding hole is plugged: After the calcium oxide is added, the stepper motor (40) is started in reverse to plug the feeding hole (45); S6. Carbon dioxide mixing and capture: starting the delivery pump (21), delivering carbon dioxide to the feed pipe (18), and the carbon dioxide gas is delivered upward to the reactor (3), where it is mixed with calcium hydroxide to form calcium carbonate and water; S7. Saturation state treatment and calcium oxide supplementation: After calcium hydroxide absorbs carbon dioxide to saturation, the gas floats upward to the detection box (48), the pressure of the pressure plate (49) increases, pushing the pressure plate (51) to apply pressure to the pressure sensor (52), and the pressure sensor (52) is pressurized to activate the buzzer, prompting the replenishment of calcium oxide.

Images