Metal lithium distillation purification device based on waste heat recovery
By introducing a sealing and collection mechanism into the lithium metal distillation purification unit, the problems of lithium metal spillage and low waste heat recovery efficiency are solved, achieving efficient lithium metal purification and condensation and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SHENGWEI LITHIUM IND CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-10
AI Technical Summary
Existing sealing methods in lithium metal distillation processes can easily lead to spillage of lithium metal, resulting in waste and increased costs. At the same time, the low efficiency of waste heat recovery affects purification efficiency and yield.
A lithium metal distillation and purification device based on waste heat recovery is adopted, including a sealing mechanism and a collection mechanism. The device utilizes components such as a cover plate, a pulling component, and a condensing component to achieve sealing and efficient condensation of the distillation tank, ensuring the collection and purification of lithium metal.
This technology achieves efficient sealing of lithium metal, reduces waste, improves purification and condensation efficiency, optimizes the purification path, and reduces production costs.
Smart Images

Figure CN224478121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distillation and purification technology, and in particular to a lithium metal distillation and purification device based on waste heat recovery. Background Technology
[0002] With the rapid development of new energy, metallurgy, aerospace, and glass manufacturing industries, the demand for lithium is increasing year by year. This requires improving the purification efficiency and output of lithium metal while reducing production costs. Traditional lithium metal purification mainly uses distillation, which utilizes the different vapor pressures of various metal elements at a certain temperature to separate impurity elements from lithium metal. However, this process consumes a lot of heat energy, and a large amount of high-temperature gas waste heat is generated during the operation of the distillation device. If it is directly discharged, it will lead to resource waste and increase production costs. In addition, there is a similar problem of underutilization of waste heat in the lithium mining process. Some existing lithium mining waste heat recovery systems only recover waste heat from flue gas, ignoring the waste heat resources present in the lithium ore itself, resulting in low heat recovery efficiency.
[0003] During distillation, steam is generated inside. If the distillation chamber is not sealed, the steam will escape, causing material loss, affecting distillation efficiency and yield, and reducing the purity of the distilled product. For example, in brewing, if the distillation chamber is not sealed, alcohol vapor will leak out, reducing the yield of the wine and affecting its quality. Current technology uses permanent magnet coupling to achieve non-contact transmission, with no physical contact between the moving and stationary rings. Silicone sealant can be used to enhance the sealing. However, this sealing method is prone to spillage when adding liquid lithium metal, resulting in waste of lithium metal and increasing distillation costs. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a lithium metal distillation and purification device based on waste heat recovery, which aims to improve the problem that the sealing method in the prior art is prone to spillage when adding liquid lithium metal, thus causing waste of lithium metal and increasing distillation costs.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lithium metal distillation purification device based on waste heat recovery, including a distillation tank, the inner wall of which is provided with a sealing mechanism for feeding and sealing the distillation tank, and a collection mechanism provided on the right side of the distillation tank for collecting the purified lithium metal.
[0006] The sealing mechanism includes a cover plate, the right side of which is rotatably connected to the front side of the distillation tank. A rotating blade is fixedly connected to the right front end of the cover plate, and a handle is fixedly connected to the left front end of the cover plate. A heating inclined plate is fixedly connected to the bottom of the inner wall of the distillation tank. A pulling assembly is provided on the front side of the inner wall of the cover plate, and a connecting assembly is provided on the rear side of the cover plate. A moving assembly is provided at the bottom of the pulling assembly.
[0007] As a further description of the above technical solution:
[0008] The collection mechanism includes a guide plate, the outer wall of which is fixedly connected to the top of the inner wall of the distillation tank. A hollow groove is provided on the top right side of the distillation tank. A hollow inclined plate is fixedly connected to the inner wall of the hollow groove. A cooling box is fixedly connected to the right side of the hollow inclined plate. A condensation component is provided on the inner wall of the cooling box. A collection component is provided on the front side of the cooling box.
[0009] As a further description of the above technical solution:
[0010] The pulling assembly includes a fixed column, the front end of which is fixedly connected to the middle of the front side of the inner wall of the distillation tank, and the rear end of which is rotatably connected to a first wheel, the outer wall of which is provided with a pull rope.
[0011] As a further description of the above technical solution:
[0012] The connecting assembly includes a fixing plate, the front side of which is fixedly connected to the right front end of the inner wall of the distillation tank, a connecting column is fixedly connected to the bottom of the fixing plate, and a rotating wheel is rotatably connected to the bottom of the connecting column.
[0013] As a further description of the above technical solution:
[0014] The moving component includes a triangular plate, the top left side of which is fixedly connected to the bottom end of the pull rope, and multiple rotating balls are rotatably connected to the front right side of the inner wall of the distillation tank.
[0015] As a further description of the above technical solution:
[0016] The condensation assembly includes two condensation plates, the outer walls of which are fixedly connected to the left and right sides of the inner wall of the cooling box, and a guide groove is provided on the top of the condensation plates.
[0017] As a further description of the above technical solution:
[0018] The collection assembly includes a collection box, the outer wall of which is slidably connected to the inner wall of the cooling box, and a handle is fixedly connected to the front side of the collection box.
[0019] As a further description of the above technical solution:
[0020] The front end of the pull rope is fixedly connected to the rear right end of the cover plate, and the right side of the triangular plate is rotatably connected to the outer wall of the rotating ball.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, when lithium metal is poured into the distillation tank, the first handle is pulled, which drives the cover plate to rotate. The cover plate pulls the pull rope, and the pull rope, under the action of the second and first rotating wheels, pulls the triangular plate. The triangular plate slides upward along the inner wall of the distillation tank. The rotating ball reduces the friction between the triangular plate and the inner wall, improving the sliding efficiency. Then, lithium metal is poured in. The lithium metal flows along the inclined surface of the triangular plate into the heating inclined plate for distillation and purification. The gravity of the triangular plate tightens the pull rope, making the cover plate tightly close the distillation tank, thus achieving a seal on the distillation tank, reducing contamination of the lithium metal, and facilitating the addition of lithium metal, thereby improving the purification efficiency.
[0023] 2. In this invention, the evaporated lithium metal vapor floats upward and moves to the hollow trough under the action of the guide plate. It then enters the cooling box along the hollow inclined plate. The cooling box cools the lithium metal, causing it to turn into liquid and drip onto the top of the condensing plate. It then flows to the collection box under the guidance of the guide trough. The condensing plate can extend the condensation path, allowing the lithium metal to be fully condensed. This achieves the purification and collection of lithium metal, optimizes the purification path, reduces the condensation time, and thus improves the condensation efficiency. Attached Figure Description
[0024] Figure 1 This is a front perspective view of the lithium metal distillation and purification device based on waste heat recovery proposed in this utility model.
[0025] Figure 2 This is a partial structural exploded view of the lithium metal distillation and purification device based on waste heat recovery proposed in this utility model;
[0026] Figure 3 This is a partial structural diagram of the lithium metal distillation and purification device based on waste heat recovery proposed in this utility model;
[0027] Figure 4 This is a partial structural diagram of the lithium metal distillation and purification device based on waste heat recovery proposed in this utility model;
[0028] Figure 5 This is a partial structural schematic diagram of the lithium metal distillation and purification device based on waste heat recovery proposed in this utility model.
[0029] Legend:
[0030] 1. Distillation chamber; 2. Sealing mechanism; 201. Cover plate; 202. Handle one; 203. Rotating blade; 204. Heating inclined plate; 205. Pulling assembly; 2051. Pull rope; 2052. Rotating wheel one; 2053. Fixing column; 206. Connecting assembly; 2061. Fixing plate; 2062. Connecting column; 2063. Rotating wheel two; 207. Moving assembly; 2071. Triangular plate; 2072. Rotating ball; 3. Collection mechanism; 301. Guide plate; 302. Hollow groove; 303. Hollow inclined plate; 304. Cooling chamber; 305. Condensation assembly; 3051. Condensation plate; 3052. Guide groove; 306. Collection assembly; 3061. Collection box; 3062. Handle two. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5 An embodiment of this utility model is provided: a lithium metal distillation purification device based on waste heat recovery, including a distillation tank 1, a sealing mechanism 2 is provided on the inner wall of the distillation tank 1, the sealing mechanism 2 is used to add material and seal the distillation tank 1, and a collection mechanism 3 is provided on the right side of the distillation tank 1, the collection mechanism 3 is used to collect the purified lithium metal.
[0033] The sealing mechanism 2 includes a cover plate 201. The right side of the cover plate 201 is rotatably connected to the front side of the distillation tank 1. A rotating blade 203 is fixedly connected to the right front side of the cover plate 201. A handle 202 is fixedly connected to the left front side of the cover plate 201. A heating inclined plate 204 is fixedly connected to the bottom of the inner wall of the distillation tank 1. A pulling component 205 is provided on the front side of the inner wall of the cover plate 201. A connecting component 206 is provided on the rear side of the cover plate 201. A moving component 207 is provided at the bottom of the pulling component 205. The pulling component 205 includes a fixed column 2053. The front end of the fixed column 2053 is fixedly connected to the middle of the front side of the inner wall of the distillation tank 1. A rotating wheel 2052 is rotatably connected to the rear end of the fixed column 2053. A pull rope 2051 is provided on the outer wall of the rotating wheel 2052.
[0034] Specifically, the main function of the sealing mechanism 2 is to ensure that the distillation tank 1 can achieve a tight seal during the feeding and sealing process, thereby preventing any leakage of substances or intrusion of external impurities. The collection mechanism 3 is specifically designed to efficiently and accurately collect purified lithium metal to ensure its purity and quality.
[0035] The rotating blade 203 plays a crucial supporting and adjusting role during operation. The handle 202 allows operators to easily and conveniently open and close it. The heating inclined plate 204 can evenly distribute heat during heating, improving purification efficiency. The pulling component 205 plays a crucial pulling and adjusting role during operation. The connecting component 206 ensures tight connection and coordinated work between various components. The moving component 207 enables more flexible operation. The fixed column 2053 is fixedly connected to the distillation tank 1 to ensure its stability and durability. Operators can easily adjust the pulling component 205 through the pull rope 2051, thereby achieving precise control of the cover plate 201.
[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 The collecting mechanism 3 includes a guide plate 301. The outer wall of the guide plate 301 is fixedly connected to the top of the inner wall of the distillation tank 1. A hollow groove 302 is provided on the top right side of the distillation tank 1. A hollow inclined plate 303 is fixedly connected to the inner wall of the hollow groove 302. A cooling box 304 is fixedly connected to the right side of the hollow inclined plate 303. A condensation component 305 is provided on the inner wall of the cooling box 304. A collecting component 306 is provided on the front side of the cooling box 304. The connecting component 206 includes a fixing plate 2061. The front side of the fixing plate 2061 is fixedly connected to the right front end of the inner wall of the distillation tank 1. A connecting column 2062 is fixedly connected to the bottom of the fixing plate 2061. A rotating wheel 2063 is rotatably connected to the bottom of the connecting column 2062.
[0037] Specifically, the guide plate 301 is fixedly connected to the distillation tank 1 to ensure its stability under high temperature and high pressure conditions. The condenser assembly 305 can quickly condense the steam into liquid. The collection assembly 306 is used to collect the condensed liquid. The fixing plate 2061 is fixedly connected to the distillation tank 1 to ensure the connection is firm and stable. The rotor 2063 has excellent rotation performance and can provide stable support and adjustment functions during equipment operation.
[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3The moving component 207 includes a triangular plate 2071. The top left side of the triangular plate 2071 is fixedly connected to the bottom end of the pull rope 2051. Multiple rotating balls 2072 are rotatably connected to the front right side of the inner wall of the distillation tank 1. The front end of the pull rope 2051 is fixedly connected to the rear right side of the cover plate 201. The right side of the triangular plate 2071 is rotatably connected to the outer wall of the rotating balls 2072.
[0039] Specifically, the triangle 2071 is fixedly connected to the pull rope 2051 to ensure that it will not loosen during operation. The rotating ball 2072 can rotate smoothly when needed to adapt to different operating requirements. The pull rope 2051 is fixedly connected to the cover plate 201 to ensure the stability and reliability of the entire structure. The rotatable connection between the triangle 2071 and the rotating ball 2072 not only improves the flexibility of the components, but also greatly enhances their adaptability in complex operating environments.
[0040] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The condensation assembly 305 includes two condensation plates 3051. The outer walls of the two condensation plates 3051 are fixedly connected to the left and right sides of the inner wall of the cooling box 304. A guide groove 3052 is provided on the top of the condensation plate 3051. The collection assembly 306 includes a collection box 3061. The outer wall of the collection box 3061 is slidably connected to the inner wall of the cooling box 304. A handle 3062 is fixedly connected to the front side of the collection box 3061.
[0041] Specifically, the condenser plate 3051 is fixedly connected to the cooling box 304 to ensure that it will not shift during operation, thereby effectively improving condensation efficiency. The guide groove 3052 is designed to guide the condensate generated during condensation to flow smoothly and avoid water accumulation. The collection box 3061 is slidably connected to the cooling box 304 to ensure that it can move flexibly inside the cooling box 304 for easy collection of condensate. The handle 3062 makes it easy for operators to hold and move the collection box 304, thereby improving overall operational convenience and work efficiency.
[0042] Working principle: When lithium metal needs to be poured into the distillation tank 1, pull handle 202. Handle 202 will rotate the cover 201, and the rotation of the cover 201 will pull the pull rope 2051. Under the action of the rotating wheel 2063 and the rotating wheel 2052, the pull rope 2051 will pull the triangular plate 2071, causing the triangular plate 2071 to slide upward along the inner wall of the distillation tank 1. The rotating ball 2072 can reduce the contact between the triangular plate 2071 and the distillation tank 1. The friction of the inner wall improves the sliding efficiency of the triangular plate 2071. When lithium metal is poured in, it flows along the inclined surface of the triangular plate 2071 into the heating inclined plate 204, where it is distilled and purified. The gravity of the triangular plate 2071 can tighten the pull rope 2051, allowing the cover plate 201 to seal the distillation tank 1, thus reducing contamination of the lithium metal and facilitating the addition of lithium metal, thereby improving the purification efficiency.
[0043] The evaporated lithium metal vapor floats upward and, under the action of the guide plate 301, moves into the hollow groove 302, and then enters the interior of the cooling box 304 along the hollow inclined plate 303. The cooling box 304 can cool the lithium metal. The cooled lithium metal will turn into liquid and drip onto the top of the condenser plate 3051, and then flow into the collection box 3061 under the guidance of the guide groove 3052. The presence of the condenser plate 3051 can extend the condensation path of the lithium metal, thereby enabling the lithium metal to be fully condensed, realizing the purification and collection of lithium metal, optimizing the purification path, reducing condensation time, and thus improving condensation efficiency.
[0044] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, 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, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lithium metal distillation purification device based on waste heat recovery, comprising a distillation tank (1), characterized in that: The inner wall of the distillation tank (1) is provided with a sealing mechanism (2), which is used to add material and seal the distillation tank (1). A collection mechanism (3) is provided on the right side of the distillation tank (1), which is used to collect the purified lithium metal. The sealing mechanism (2) includes a cover plate (201), the right side of which is rotatably connected to the front side of the distillation tank (1), a rotating blade (203) is fixedly connected to the right front side of the cover plate (201), a handle (202) is fixedly connected to the left front side of the cover plate (201), a heating inclined plate (204) is fixedly connected to the bottom of the inner wall of the distillation tank (1), a pulling component (205) is provided on the front side of the inner wall of the cover plate (201), a connecting component (206) is provided on the rear side of the cover plate (201), and a moving component (207) is provided at the bottom of the pulling component (205).
2. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 1, characterized in that: The collecting mechanism (3) includes a guide plate (301), the outer wall of which is fixedly connected to the top of the inner wall of the distillation tank (1), a hollow groove (302) is provided on the top right side of the distillation tank (1), a hollow inclined plate (303) is fixedly connected to the inner wall of the hollow groove (302), a cooling box (304) is fixedly connected to the right side of the hollow inclined plate (303), a condensation component (305) is provided on the inner wall of the cooling box (304), and a collecting component (306) is provided on the front side of the cooling box (304).
3. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 1, characterized in that: The pulling assembly (205) includes a fixed column (2053), the front end of which is fixedly connected to the middle of the front side of the inner wall of the distillation tank (1), and the rear end of the fixed column (2053) is rotatably connected to a first wheel (2052), and the outer wall of the first wheel (2052) is provided with a pull rope (2051).
4. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 1, characterized in that: The connecting assembly (206) includes a fixing plate (2061), the front side of which is fixedly connected to the right end of the front side of the inner wall of the distillation tank (1), and a connecting column (2062) is fixedly connected to the bottom of the fixing plate (2061), and a rotating wheel (2063) is rotatably connected to the bottom of the connecting column (2062).
5. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 3, characterized in that: The moving component (207) includes a triangular plate (2071), the top left side of which is fixedly connected to the bottom end of the pull rope (2051), and a plurality of rotating balls (2072) are rotatably connected to the front right side of the inner wall of the distillation tank (1).
6. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 2, characterized in that: The condensation assembly (305) includes two condensation plates (3051), the outer walls of the two condensation plates (3051) are fixedly connected to the left and right sides of the inner wall of the cooling box (304), and a guide groove (3052) is provided on the top of the condensation plate (3051).
7. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 2, characterized in that: The collection component (306) includes a collection box (3061), the outer wall of which is slidably connected to the inner wall of the cooling box (304), and a handle (3062) is fixedly connected to the front side of the collection box (3061).
8. The lithium metal distillation and purification apparatus based on waste heat recovery according to claim 5, characterized in that: The front end of the pull rope (2051) is fixedly connected to the rear right end of the cover plate (201), and the right side of the triangular plate (2071) is rotatably connected to the outer wall of the rotating ball (2072).