Energy-saving ionic solution carbon trapping device

Abstract

The utility model discloses an energy-saving ionic solution carbon trapping device, which relates to the technical field of carbon trapping and comprises an adsorption tower, the adsorption tower comprises a waste heat recovery section and an adsorption section, a spiral flue gas inlet pipe is arranged in the waste heat recovery section, one end of the flue gas inlet pipe is positioned on the outer side of the adsorption tower, and the other end of the flue gas inlet pipe is positioned on the outer side of the adsorption tower. The other end of the flue gas inlet pipe is located at the adsorption section, a conveying pump is arranged at the bottom of the waste heat recovery section, a conveying pipe is fixedly arranged on the conveying pump, the upper end of the conveying pipe is located in the adsorption section, and a flue gas outlet pipe is fixedly arranged at the top of the adsorption tower; and a fixed rod is fixedly arranged on the inner wall of the adsorption section. According to the utility model, the waste heat recovery section and the adsorption section are arranged in the adsorption tower, the spiral flue gas inlet pipe is arranged in the waste heat recovery section, so that the heat in the flue gas preheats the ion solution in the waste heat recovery section, and then the preheated and fused flue gas is fed into the adsorption section, thereby reducing the energy for subsequently heating the ion solution, realizing energy conservation and reducing the energy consumption. The ion solution absorption efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon capture, in particular to an energy-saving ion solution carbon capture device. Background Art

[0002] An energy-saving ion solution carbon capture device is a high-efficiency carbon capture device that combines waste heat recovery technology and the absorption characteristics of ion solution; it utilizes the waste heat of flue gas and the highly selective absorption capacity of ion solution for carbon dioxide to achieve low energy consumption and high efficiency carbon capture.

[0003] At present, flue gas containing a large amount of carbon dioxide is generated in the production processes of coal-fired and oil-fired power plants, waste incineration power plants, cement kilns, steel mills, etc. When carbon is captured through ion solutions, the ion solutions need to be heated through adsorption towers to make the ion solutions adsorb carbon dioxide more fully. However, the incoming flue gas contains a large amount of heat, which cannot be well utilized and is wasted, resulting in high energy consumption and high pollution. Utility Model Content

[0004] The purpose of the utility model is to provide an energy-saving ion solution carbon capture device, which provides an energy-saving ion solution carbon capture device by arranging a waste heat recovery section and an adsorption section in an adsorption tower, and providing a spiral flue gas inlet pipe in the waste heat recovery section, so that the heat in the flue gas can preheat the ion solution in the waste heat recovery section, and then the preheated solution and flue gas are both sent to the adsorption section, thereby reducing the energy required for subsequent heating of the ion solution, achieving energy saving, and improving the absorption efficiency of the ion solution.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] An energy-saving ionic solution carbon capture device includes an adsorption tower, the adsorption tower includes a waste heat recovery section and an adsorption section, a spiral flue gas inlet pipe is provided in the waste heat recovery section, one end of the flue gas inlet pipe is located outside the adsorption tower, and the other end of the flue gas inlet pipe is located in the adsorption section, a delivery pump is provided at the bottom of the waste heat recovery section, a delivery pipe is fixedly provided on the delivery pump, the upper end of the delivery pipe is located in the adsorption section, and a flue gas outlet pipe is fixedly provided at the top of the adsorption tower;

[0007] A fixing rod is fixed to the inner wall of the adsorption section, a rotating shaft is rotatably provided in the middle of the fixing rod, two connecting rods are fixed to the outer wall of the rotating shaft, a stirring rod is rotatably provided at one end of the connecting rod, a stirring blade is fixed to the lower end of the stirring rod, a first gear is fixed on the rotating shaft, a second gear meshing with the first gear is fixed on the stirring rod, and a driving assembly for driving the rotating shaft to rotate is provided on the fixing rod.

[0008] Preferably, the driving assembly includes a mounting bracket fixedly mounted on a fixing rod, a motor is fixedly provided on the mounting bracket, and an output end of the motor is fixedly connected to an upper end of the rotating shaft.

[0009] Preferably, a one-way valve is provided at the end of the flue gas inlet pipe located in the adsorption section.

[0010] Preferably, the waste heat recovery section is fixedly provided with a liquid inlet pipe, and the adsorption section is fixedly provided with a liquid outlet pipe.

[0011] Preferably, the second gears are symmetrically distributed on both sides of the first gear, and the stirring rod passes through the center of the second gear.

[0012] Preferably, valves are provided on the smoke inlet pipe, smoke outlet pipe, liquid inlet pipe and liquid outlet pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By setting up a waste heat recovery section and an adsorption section in the adsorption tower, and setting a spiral flue gas inlet pipe in the waste heat recovery section, the heat in the flue gas can be used to preheat the ion solution in the waste heat recovery section, and then the preheated solution and flue gas are sent to the adsorption section, thereby reducing the energy required for subsequent heating of the ion solution, achieving energy saving and improving the absorption efficiency of the ion solution;

[0015] 2. By setting a stirring rod and stirring blades for stirring the ion solution in the adsorption section, the stirring blades can rotate on their own and in a circle around the shaft through three meshing gears, so that the ion solution can absorb the carbon dioxide in the flue gas more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a structural diagram of the adsorption tower in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the stirring blade in the present utility model;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Serial number in the picture:

[0022] 1. Adsorption tower; 11. Waste heat recovery section; 12. Adsorption section; 13. Flue gas inlet pipe; 14. Delivery pump; 15. Delivery pipe; 16. Flue gas outlet pipe;

[0023] 2. Fixed rod; 21. Rotating shaft; 22. Connecting rod; 23. Stirring rod; 24. Stirring blade; 25. First gear; 26. Second gear;

[0024] 3. Mounting frame; 31. Motor;

[0025] 4. One-way valve;

[0026] 5. Liquid inlet pipe; 51. Liquid outlet pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example: This example provides an energy-saving ion solution carbon capture device, see Figure 1-4 Specifically, it includes an adsorption tower 1, which includes a waste heat recovery section 11 and an adsorption section 12. A spiral flue gas inlet pipe 13 is provided in the waste heat recovery section 11, one end of the flue gas inlet pipe 13 is located outside the adsorption tower 1, and the other end of the flue gas inlet pipe 13 is located in the adsorption section 12. A delivery pump 14 is provided at the bottom of the waste heat recovery section 11, and a delivery pipe 15 is fixedly provided on the delivery pump 14. The upper end of the delivery pipe 15 is located in the adsorption section 12, and a flue gas outlet pipe 16 is fixedly provided at the top of the adsorption tower 1. A one-way valve 4 is provided at the end of the flue gas inlet pipe 13 located in the adsorption section 12, a liquid inlet pipe 5 is fixedly provided in the waste heat recovery section 11, and a liquid outlet pipe 51 is fixedly provided in the adsorption section 12. Valves are provided on the flue gas inlet pipe 13, the flue gas outlet pipe 16, the liquid inlet pipe 5 and the liquid outlet pipe 51;

[0029] The flue gas generated during the production process of the steel plant is sent into the adsorption tower 1 through the flue gas inlet pipe 13. The ion solution is added to the waste heat recovery section 11 of the adsorption tower 1 through the liquid inlet pipe 5. The flue gas with heat passes through the waste heat recovery section 11 from the flue gas inlet pipe 13. The heat carried will preheat the ion solution in the waste heat recovery section 11. The flue gas inlet pipe 13 is set in a spiral shape to increase the contact area with the ion solution and improve the preheating efficiency. The flue gas is finally discharged from the flue gas inlet pipe 13 into the adsorption section 12, and the adsorption section 12 uses the delivery pump 14 to deliver the preheated ion solution in the waste heat recovery section 11 from the delivery pipe 15 to the adsorption section 12. The flue gas enters from the bottom of the ion solution and absorbs carbon dioxide in the flue gas through the ion solution. The absorbed flue gas is finally discharged from the flue gas outlet pipe 16.

[0030] In the specific implementation process, Figure 2 and Figure 3As shown, a fixed rod 2 is fixed to the inner wall of the adsorption section 12, a rotating shaft 21 is rotatably provided in the middle of the fixed rod 2, two connecting rods 22 are fixed to the outer wall of the rotating shaft 21, a stirring rod 23 is rotatably provided at one end of the connecting rod 22, a stirring blade 24 is fixed at the lower end of the stirring rod 23, a first gear 25 is fixed on the rotating shaft 21, and a second gear 26 meshing with the first gear 25 is fixed on the stirring rod 23. The second gears 26 are symmetrically distributed on both sides of the first gear 25, and the stirring rod 23 passes through the center of the second gear 26. A driving assembly for driving the rotating shaft 21 to rotate is provided on the fixed rod 2, and the driving assembly includes a mounting frame 3 fixedly mounted on the fixed rod 2, a motor 31 is fixed on the mounting frame 3, and the output end of the motor 31 is fixedly connected to the upper end of the rotating shaft 21;

[0031] The motor 31 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives the connecting rod 22 to rotate synchronously, the connecting rod 22 drives the stirring blade 24 and the second gear 26 to rotate synchronously, the second gear 26 rotates along the outer wall of the first gear 25, and the rotation of the second gear 26 drives the stirring rod 23 to rotate, and the stirring rod 23 drives the stirring blade 24 to rotate, so that the stirring blade 24 rotates while rotating, and also rotates in a circle around the rotating shaft 21 as the center. The stirring blade 24 stirs the ion solution in the adsorption section 12, so that the ion solution absorbs carbon dioxide in the flue gas more fully.

[0032] The working process of this utility model is as follows:

[0033] The flue gas generated during the steel plant's production process is fed into the adsorption tower 1 through the flue gas inlet pipe 13. The flue gas carrying heat passes through the waste heat recovery section 11 from the flue gas inlet pipe 13. The heat carried will preheat the ion solution in the waste heat recovery section 11. The flue gas inlet pipe 13 is arranged in a spiral shape to increase the contact area with the ion solution and improve the preheating efficiency. The flue gas is finally discharged from the flue gas inlet pipe 13 into the adsorption section 12. The adsorption section 12 uses a delivery pump 14 to deliver the preheated ion solution in the waste heat recovery section 11 from the delivery pipe 15 into the adsorption section 12. The flue gas enters from the bottom of the ion solution and absorbs carbon dioxide in the flue gas through the ion solution. The absorbed flue gas is finally discharged from the flue gas outlet pipe 16.

[0034] In the utility model, a waste heat recovery section and an adsorption section are arranged in the adsorption tower, and a spiral flue gas inlet pipe is arranged in the waste heat recovery section, so that the heat in the flue gas is used to preheat the ion solution in the waste heat recovery section, and then the preheated solution and flue gas are sent to the adsorption section, thereby reducing the energy required for subsequent heating of the ion solution, achieving energy saving, and improving the absorption efficiency of the ion solution; at the same time, a stirring rod and a stirring blade for stirring the ion solution are arranged in the adsorption section, and through three meshing gears, the stirring blade can rotate on its own and also rotate in a circle with the rotating shaft as the center, so that the ion solution can absorb the carbon dioxide in the flue gas more fully.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy-saving ion solution carbon capture device, comprising an adsorption tower (1), characterized in that: The adsorption tower (1) comprises a waste heat recovery section (11) and an adsorption section (12); a spiral flue gas inlet pipe (13) is provided in the waste heat recovery section (11); one end of the flue gas inlet pipe (13) is located outside the adsorption tower (1), and the other end of the flue gas inlet pipe (13) is located in the adsorption section (12); a delivery pump (14) is provided at the bottom of the waste heat recovery section (11); a delivery pipe (15) is fixedly provided on the delivery pump (14); the upper end of the delivery pipe (15) is located in the adsorption section (12); and a flue gas outlet pipe (16) is fixedly provided at the top of the adsorption tower (1); A fixing rod (2) is fixedly provided on the inner wall of the adsorption section (12), a rotating shaft (21) is rotatably provided in the middle of the fixing rod (2), two connecting rods (22) are fixedly provided on the outer wall of the rotating shaft (21), a stirring rod (23) is rotatably provided at one end of each connecting rod (22), a stirring blade (24) is fixedly provided at the lower end of each stirring rod (23), a first gear (25) is fixedly provided on the rotating shaft (21), a second gear (26) meshing with the first gear (25) is fixedly provided on each stirring rod (23), and a driving component for driving the rotating shaft (21) to rotate is provided on the fixing rod (2).

2. The energy-saving ion solution carbon capture device according to claim 1, characterized in that: The driving assembly comprises a mounting frame (3) fixedly mounted on a fixing rod (2), a motor (31) being fixedly arranged on the mounting frame (3), and an output end of the motor (31) being fixedly connected to an upper end of a rotating shaft (21).

3. The energy-saving ion solution carbon capture device according to claim 1, characterized in that: The end of the flue gas inlet pipe (13) located in the adsorption section (12) is provided with a one-way valve (4).

4. The energy-saving ion solution carbon capture device according to claim 1, characterized in that: The waste heat recovery section (11) is fixedly provided with a liquid inlet pipe (5), and the adsorption section (12) is fixedly provided with a liquid outlet pipe (51).

5. The energy-saving ion solution carbon capture device according to claim 1, characterized in that: The second gear (26) is symmetrically distributed on both sides of the first gear (25), and the stirring rod (23) passes through the center of the second gear (26).

6. The energy-saving ion solution carbon capture device according to claim 1, characterized in that: Valves are provided on the smoke inlet pipe (13), the smoke outlet pipe (16), the liquid inlet pipe (5) and the liquid outlet pipe (51).

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