Carbonizing tower device
By using the rectangular saddle ring structure of the carbonization tower device in the lithium battery recycling process, uniform contact between pure water and the loaded organic phase extractant and carbon dioxide is ensured, solving the problem of low lithium extraction rate caused by uneven reaction and achieving efficient lithium extraction.
Patent Information
- Application Number
- CN202520255604.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In existing technologies, the reaction in the back-extraction stirred tank is uneven during the lithium battery recycling process, resulting in low lithium extraction efficiency.
A carbonization tower device is used, which utilizes a rectangular saddle ring structure to ensure that pure water and the loaded organic phase extractant are in full contact with carbon dioxide. Carbon dioxide gas is evenly distributed through a gas distribution pipe to ensure uniform contact between liquid and gas within the rectangular saddle ring, thereby improving the extraction rate of lithium.
This method achieves efficient extraction of lithium and improves the lithium extraction rate.
Smart Images

Figure CN223788102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium processing equipment, and in particular to a carbonization tower device. Background Technology
[0002] Currently, the recycling process for waste lithium batteries involves first extracting lithium through extraction, followed by a reverse extraction stirred tank. Specifically, a loaded organic phase (containing lithium solution) and pure water are added to the reverse extraction stirred tank, and then carbon dioxide is introduced. After thorough mixing, a lithium-rich solution of lithium bicarbonate and an empty organic phase extractant are obtained. However, the reverse extraction stirred tank is prone to uneven gas distribution during the reaction, leading to incomplete reaction and reduced lithium extraction efficiency. Utility Model Content
[0003] To address the aforementioned problems, this invention proposes a carbonization tower device. The presence of the rectangular saddle ring allows pure water and the loaded organic phase extractant to fully contact with carbon dioxide, ensuring a relatively high extraction rate of lithium.
[0004] The technical solution adopted by this utility model is as follows:
[0005] A carbonization tower device includes a first tower body, a second tower body, and a third tower body. The second tower body is cylindrical. The first tower body and the third tower body are respectively disposed at both ends of the second tower body. The first tower body is provided with a first feed inlet and a second feed inlet. A rectangular saddle ring is disposed inside the second tower body. An air distribution pipe is disposed inside the third tower body. An air inlet disposed on the third tower body is connected to the air distribution pipe. A discharge pipe is connected to the bottom of the third tower body.
[0006] In this type of carbonization tower, pure water and the supported organic phase extractant (containing lithium solution) enter from the first inlet and the second inlet, respectively, and then flow to the rectangular saddle ring. The pure water and the supported organic phase extractant flow from top to bottom through the rectangular saddle ring, while carbon dioxide gas flows out from the gas distribution pipe and is evenly distributed at the bottom of the rectangular saddle ring. The carbon dioxide flows from bottom to top through the bottom of the rectangular saddle ring. The liquid and gas are evenly distributed and in contact within the rectangular saddle ring. The presence of the rectangular saddle ring allows the pure water and the supported organic phase extractant to fully contact with the carbon dioxide, ensuring a relatively high extraction rate of lithium.
[0007] Optionally, it also includes a distributor, which is disposed in the first tower body or the second tower body, and the rectangular saddle ring is located between the distributor and the gas distribution pipe.
[0008] The presence of the distributor allows pure water to be mixed with the loaded organic phase extractant (lithium-containing solution) and then flowed uniformly toward the rectangular saddle ring.
[0009] Optionally, it also includes a mixing connector, which is a T-shaped mixing connector, with one end connected to the first feed inlet and the other end connected to the second feed inlet.
[0010] The function of the mixing nozzle is to mix water with the loaded organic phase extractant (lithium-containing solution) and then flow it to the distributor, and then through the distributor to the rectangular saddle ring.
[0011] Optionally, the first feed inlet and the second feed inlet are aligned in a straight line.
[0012] The first and second feed inlets are aligned in a straight line to ensure that the pure water and the loaded organic phase extractant (lithium-containing solution) are mixed evenly.
[0013] Optionally, the top of the first tower body is provided with an exhaust port.
[0014] The purpose of the vent is to allow the gases produced after the reaction to leave.
[0015] Optionally, it also includes a support, which is disposed at one end of the third tower body and located outside the third tower body.
[0016] The support is used to support the third tower body.
[0017] Optionally, the air distribution pipe is provided with a plurality of air distribution holes, and the distance between two adjacent air distribution holes is equal.
[0018] The air distribution holes on the air distribution pipe are for uniform air distribution, so that there is a carbon dioxide airflow distribution at the bottom of the rectangular saddle ring, and the carbon dioxide airflow flows evenly towards the rectangular saddle ring.
[0019] Optionally, the central axis of the first tower body, the central axis of the second tower body, and the central axis of the third tower body are on a straight line.
[0020] The beneficial effects of this invention are: the presence of the rectangular saddle ring allows pure water to fully contact the loaded organic phase extractant and carbon dioxide, ensuring a relatively high extraction rate of lithium. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0022] Figure 1 This is a simplified structural diagram of a carbonization tower device;
[0023] Figure 2 yes Figure 1 A simplified enlarged diagram of point A in the middle;
[0024] Figure 3 yes Figure 1 A simplified enlarged diagram of point B in the middle.
[0025] The attached figures are labeled as follows: 1. First tower body; 2. Second tower body; 3. Third tower body; 4. Support; 5. Discharge pipe; 6. Rectangular saddle ring; 7. Mixing pipe; 8. Distributor; 9. Air distribution pipe; 901. Air distribution hole. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0029] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, a carbonization tower device includes a first tower body 1, a second tower body 2, and a third tower body 3. The second tower body 2 is cylindrical. The first tower body 1 and the third tower body 3 are respectively disposed at both ends of the second tower body 2. The first tower body 1 is provided with a first feed inlet and a second feed inlet. A rectangular saddle ring 6 is provided inside the second tower body 2. An air distribution pipe 9 is provided inside the third tower body 3. An air inlet on the third tower body 3 is connected to the air distribution pipe 9. A discharge pipe 5 is connected to the bottom of the third tower body 3.
[0030] In this type of carbonization tower, pure water and the supported organic phase extractant (containing lithium solution) enter from the first inlet and the second inlet, respectively, and then flow towards the rectangular saddle ring 6. The pure water and the supported organic phase extractant flow from top to bottom through the rectangular saddle ring 6 (with attached...). Figure 1 (Referring to the direction shown), carbon dioxide gas flows out from the gas distribution pipe 9 and is evenly distributed at the bottom of the rectangular saddle ring 6. The carbon dioxide flows from the bottom of the rectangular saddle ring 6 upwards (as shown in the attached diagram). Figure 1 (Referring to the direction shown), the liquid and gas are evenly distributed and in contact within the rectangular saddle ring 6. The presence of the rectangular saddle ring 6 allows pure water and the loaded organic phase extractant and carbon dioxide to come into full contact, ensuring a relatively high extraction rate of lithium.
[0031] The unloaded organic phase and lithium bicarbonate produced after the reaction are discharged from the discharge pipe 5 at the bottom of the third tower 3.
[0032] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, it also includes a distributor 8, which is located inside the first tower body 1 or the second tower body 2, and a rectangular saddle ring 6 is located between the distributor 8 and the gas distribution pipe 9.
[0033] The presence of distributor 8 allows pure water to flow uniformly towards the rectangular saddle ring 6 after mixing with the loaded organic phase extractant (lithium-containing solution).
[0034] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, it also includes a mixing connector, which is T-shaped. One end of the mixing connector is connected to the first feed port, and the other end of the mixing connector is connected to the second feed port.
[0035] The function of the mixing nozzle is to mix water with the loaded organic phase extractant (lithium-containing solution) and then flow to the distributor 8, and then through the distributor 8 to the rectangular saddle ring 6.
[0036] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the first feed inlet and the second feed inlet are on a straight line.
[0037] The first and second feed inlets are aligned in a straight line to ensure that the pure water and the loaded organic phase extractant (lithium-containing solution) are mixed evenly.
[0038] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the top of the first tower body 1 has an exhaust port.
[0039] The purpose of the vent is to allow the gases produced after the reaction to leave.
[0040] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, it also includes a support 4, which is located at one end of the third tower body 3 and outside the third tower body 3.
[0041] The function of support 4 is to support the third tower body 3.
[0042] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the air distribution pipe 9 is provided with a number of air distribution holes 901, and the distance between two adjacent air distribution holes 901 is equal.
[0043] The air distribution holes 901 on the air distribution pipe 9 are for uniform air distribution, so that there is a carbon dioxide airflow distribution at the bottom of the rectangular saddle ring 6, and the carbon dioxide airflow flows evenly to the rectangular saddle ring 6.
[0044] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, the central axis of the first tower 1, the central axis of the second tower 2, and the central axis of the third tower 3 are on a straight line.
[0045] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A carbonization tower apparatus, characterized in that, The system includes a first tower body, a second tower body, and a third tower body. The second tower body is cylindrical. The first tower body and the third tower body are respectively located at both ends of the second tower body. The first tower body is provided with a first feed inlet and a second feed inlet. A rectangular saddle ring is provided inside the second tower body. An air distribution pipe is provided inside the third tower body. An air inlet on the third tower body is connected to the air distribution pipe. A discharge pipe is connected to the bottom of the third tower body.
2. The carbonization tower apparatus according to claim 1, characterized in that, It also includes a distributor, which is disposed in the first tower body or the second tower body, and the rectangular saddle ring is located between the distributor and the gas distribution pipe.
3. The carbonization tower apparatus according to claim 1, characterized in that, It also includes a mixing connector, which is a T-shaped mixing connector, with one end connected to the first feed port and the other end connected to the second feed port.
4. The carbonization tower apparatus according to claim 3, characterized in that, The first feed inlet and the second feed inlet are on a straight line.
5. The carbonization tower apparatus according to claim 1, characterized in that, The top of the first tower body is provided with an air vent.
6. The carbonization tower apparatus according to claim 1, characterized in that, It also includes a support, which is disposed at one end of the third tower body and located outside the third tower body.
7. The carbonization tower apparatus according to claim 1, characterized in that, The air distribution pipe is provided with a number of air distribution holes, and the distance between two adjacent air distribution holes is equal.
8. The carbonization tower apparatus according to claim 1, characterized in that, The central axis of the first tower, the central axis of the second tower, and the central axis of the third tower are on a straight line.