A purification device for removing calcium and magnesium from lithium phosphate

Abstract

The utility model provides a kind of purification device of lithium phosphate calcium magnesium removal, it is related to lithium phosphate purification technical field, including extraction bucket, the first feed pipe and movable sleeve pipe are separately fixedly connected in extraction bucket two sides, the movable sleeve pipe is slidably inserted with second feed pipe by driving mechanism in, collection mechanism is arranged in extraction bucket and bottom box, the collection mechanism includes filter plate and collection jar, the utility model can realize the fixation of filter plate initial position and subsequent solid closed operation by setting limit groove and movable second feed pipe, it is convenient to separate after solid fast collection to collection jar, filter plate plays the role of filtering liquid on one side, it plays the role of solid closure on the other side, prevent solid leakage and pollution, by the clamping of clamping jaw and wedge, it can be made filter plate clamping to collection jar, subsequent following collection jar synchronous removal extraction bucket, it is convenient to clean filter plate.

Description

Technical Field

[0001] This utility model relates to the field of lithium phosphate purification technology, and more specifically, to a purification device for removing calcium and magnesium from lithium phosphate. Background Technology

[0002] Lithium phosphate, as an important inorganic chemical product, is widely used in fields such as lithium battery cathode materials, ceramic glazes and special glass. During the production process, lithium phosphate often contains alkaline earth metal impurities such as calcium and magnesium. These impurities can significantly reduce the electrochemical performance and physical stability of the product, so they must be removed through purification processes.

[0003] Solvent extraction is a common purification method that selectively removes impurities by utilizing the distribution equilibrium between the organic and aqueous phases. However, existing devices have significant shortcomings in solid collection: First, the filter plate has a single function, only serving to intercept solids and lacking an effective sealing mechanism. After separation, solid products are trapped on the filter plate and require additional tools to scrape them off and transfer them to the collection container. This process is not only cumbersome but also prone to material spillage and loss. Second, the filter plate is usually fixed inside the reaction device, which makes disassembly complicated and cleaning inconvenient. Utility Model Content

[0004] The main objective of this invention is to provide a purification device for removing calcium and magnesium from lithium phosphate, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A purification device for removing calcium and magnesium from lithium phosphate includes an extraction tank. A first feed pipe and a movable sleeve are fixedly connected to both sides of the extraction tank. A second feed pipe is slidably inserted into the movable sleeve through a driving mechanism. A bottom box is provided at the bottom of the extraction tank. A collection mechanism is provided inside the extraction tank and the bottom box. The collection mechanism includes a filter plate and a collection tank. The bottom of the filter plate presses against a section of the second feed pipe extending into the interior of the extraction tank. Claws and wedges are respectively provided on the filter plate and the collection tank, and the claws and wedges are engaged.

[0007] Preferably, a door is sealed to one side of the bottom box, a liquid outlet pipe is provided on the bottom box, a guide rail is fixedly installed inside the bottom box, and a sliding table is slidably connected to the guide rail.

[0008] Preferably, a second electric push rod and a telescopic rod are fixedly installed on the slide table, and a support plate is fixedly connected to the output end of the second electric push rod, with the collection tank mounted on the support plate.

[0009] Preferably, a sealing ring is fixedly connected to the outside of the collection tank, and sealing blocks are fixedly connected to both sides of the collection tank. A limiting groove is opened on the inner wall of the extraction barrel. The sealing ring abuts against the lower surface of the extraction barrel, and the sealing blocks are inserted into the lower end of the limiting groove.

[0010] Preferably, an installation rod is fixedly connected to the middle of the collection tank, and the wedge is fixedly installed on the outer circumferential surface of the upper end of the installation rod.

[0011] Preferably, a collar is slidably connected inside the movable sleeve, and the collar is fixedly installed on the second feed pipe.

[0012] Preferably, the driving mechanism includes a first fixed plate and a second fixed plate, which are fixedly mounted on a movable sleeve. A first electric push rod is fixedly mounted on one end of the first and second fixed plates. A movable plate is fixedly connected to the output end of the first electric push rod. The middle part of the movable plate is fixedly sleeved on a second feed pipe. A guide rod is fixedly connected to the end of the movable plate away from the first electric push rod. The guide rod slides through the second fixed plate.

[0013] Preferably, a sealing cap is fixedly connected to the upper end of the extraction tank, a pressure rod is slidably inserted into the middle of the sealing cap, the upper end of the pressure rod is folded, the lower end of the pressure rod is pressed against the filter plate, and the two sides of the filter plate are slidably connected to the inner wall of the limiting groove.

[0014] Preferably, a mounting shaft is rotatably connected to the middle of the filter plate, and a rotating seat is fixedly connected to the upper end of the mounting shaft. The rotating seat is fixed to the filter plate by a limiting pin.

[0015] Preferably, the gripper is fixedly installed at the lower end of the mounting shaft, and a roller is rotatably installed at the bottom of the gripper.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) By setting a limiting groove and a movable second feed pipe, this utility model can fix the initial position of the filter plate and the subsequent sealing operation of the solid, so as to facilitate the rapid collection of the separated solid into the collection tank. The filter plate plays the role of filtering liquid on the one hand and sealing solid on the other hand, preventing solid leakage and pollution.

[0018] (2) By setting up a through extraction tank, the bottom of the tank is sealed by a collection tank during the reaction. After the reaction is completed, the collection tank is lowered and the liquid separated in the extraction tank flows out automatically, which quickly achieves most of the solid-liquid separation and improves work efficiency.

[0019] (3) The present invention allows the filter plate to be snapped onto the collection tank by the snapping of the clamp and the wedge, and then moves out of the extraction tank synchronously with the collection tank. By removing the limiting pin and rotating the mounting shaft, the positions of the clamp and the wedge are staggered, which makes it easy to disassemble the filter plate for cleaning and also makes it easy to remove the solid material. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0021] Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point B in the middle;

[0022] Figure 3 This is a top view of the structure of this utility model;

[0023] Figure 4 This utility model Figure 3 Schematic diagram of the three-dimensional structure of the AA cross section;

[0024] Figure 5 This utility model Figure 4 Enlarged view of the structure at point C;

[0025] Figure 6 This utility model Figure 4 Enlarged view of the structure at point D;

[0026] Figure 7 This is a three-dimensional schematic diagram of a partial structure of the collecting mechanism in this utility model;

[0027] Figure 8 This is a three-dimensional structural diagram of the clamping claw and wedge in the engagement state of this utility model.

[0028] In the diagram: 1. Base box; 11. Box door; 12. Liquid outlet pipe; 13. Guide rail; 14. Slide table; 2. Collection mechanism; 21. Filter plate; 22. Collection tank; 221. Sealing ring; 222. Sealing block; 23. Mounting rod; 24. Wedge; 25. Mounting shaft; 251. Rotary seat; 26. Limiting pin; 27. Gripper; 28. Roller; 3. Drive mechanism; 31. First fixed plate; 32. Second fixed plate; 33. First electric push rod; 34. Guide rod; 35. Movable plate; 4. Extraction tank; 41. First feed pipe; 42. Sealing cover; 43. Pressure rod; 44. Second feed pipe; 45. Movable sleeve; 46. Limiting groove; 47. Collar; 5. Second electric push rod; 51. Telescopic rod; 52. Bearing plate. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown in the figure, this utility model embodiment proposes a purification device for removing calcium and magnesium from lithium phosphate, including an extraction tank 4. A first feed pipe 41 and a movable sleeve 45 are fixedly connected to both sides of the extraction tank 4. A second feed pipe 44 is slidably inserted into the movable sleeve 45 through a driving mechanism 3. A bottom box 1 is provided at the bottom of the extraction tank 4. A collection mechanism 2 is provided inside the extraction tank 4 and the bottom box 1. The collection mechanism 2 includes a filter plate 21 and a collection tank 22. The bottom of the filter plate 21 is pressed against a section of the second feed pipe 44 extending into the inside of the extraction tank 4. A clamp 27 and a wedge 24 are respectively provided on the filter plate 21 and the collection tank 22. The clamp 27 and the wedge 24 are engaged.

[0031] In this application, the solution and extractant enter the extraction tank 4 through the first feed pipe 41 and the second feed pipe 44 to carry out the extraction reaction and remove calcium and magnesium impurities. After the reaction is completed, the drive mechanism 3 drives the second feed pipe 44 to move outward to make room for the filter plate 21 to be pressed down. The pressure rod 43 presses down on the filter plate 21, so that the gripper 27 is locked on the wedge 24 of the collection tank 22. The solid product is sealed in the collection tank 22. The collection tank 22 is equipped with a liquid outlet and a valve, which can be opened to discharge the residual liquid.

[0032] As shown in the figure, a box door 11 is sealed and connected to one side of the bottom box 1. A liquid outlet pipe 12 is provided on the bottom box 1. A guide rail 13 is fixedly installed inside the bottom box 1. A slide table 14 is slidably connected to the guide rail 13. A second electric push rod 5 and a telescopic rod 51 are fixedly installed on the slide table 14. A support plate 52 is fixedly connected to the output end of the second electric push rod 5. The collection tank 22 is installed on the support plate 52.

[0033] The collection tank 22 is mounted on the support plate 52. The second electric push rod 5 pushes the support plate 52 down, causing the collection tank 22 to descend. The bottom of the extraction tank 4 is open, and the liquid flows into the bottom box 1 and out from the liquid outlet pipe 12. The guide rail 13 and the slide table 14 allow the collection tank 22 to move smoothly and be easily removed.

[0034] As shown in the figure, a sealing ring 221 is fixedly connected to the outside of the collection tank 22, and sealing blocks 222 are fixedly connected to both sides of the collection tank 22. A limiting groove 46 is opened on the inner wall of the extraction tank 4. The sealing ring 221 is pressed against the lower surface of the extraction tank 4. The sealing blocks 222 are inserted into the lower end of the limiting groove 46. An installation rod 23 is fixedly connected to the middle of the collection tank 22, and a wedge 24 is fixedly installed on the outer circumferential surface of the upper end of the installation rod 23.

[0035] The collection tank 22 is pressed against the lower surface of the extraction tank 4 by the sealing ring 221, and the sealing block 222 is inserted into the limiting groove 46 to achieve static sealing, prevent liquid leakage and contamination, and ensure product purity.

[0036] As shown in the figure, a collar 47 is slidably connected inside the movable sleeve 45. The collar 47 is fixedly installed on the second feed pipe 44. The drive mechanism 3 includes a first fixed plate 31 and a second fixed plate 32. The first fixed plate 31 and the second fixed plate 32 are fixedly installed on the movable sleeve 45. A first electric push rod 33 is fixedly installed at one end of the first fixed plate 31 and the second fixed plate 32. A movable plate 35 is fixedly connected to the output end of the first electric push rod 33. The middle part of the movable plate 35 is fixedly sleeved on the second feed pipe 44. A guide rod 34 is fixedly connected to the end of the movable plate 35 away from the first electric push rod 33. The guide rod 34 slides through the second fixed plate 32.

[0037] The first electric push rod 33 pushes the movable plate 35, which in turn drives the second feed pipe 44 to slide inside the movable sleeve 45. One end of the second feed pipe 44 extends into the extraction tank 4, which can support and limit the filter plate 21 to prevent it from moving down. When one end of the second feed pipe 44 moves into the movable sleeve 45, the filter plate 21 can be pressed down by the pressure rod 43, which facilitates sealing the separated solids in the collection tank 22. The guide rod 34 slides through the second fixed plate 32 to ensure that the movable plate 35 moves linearly.

[0038] As shown in the figure, a sealing cover 42 is fixedly connected to the upper end of the extraction tank 4. A pressure rod 43 is slidably inserted into the middle of the sealing cover 42. The upper end of the pressure rod 43 is folded, and the lower end of the pressure rod 43 is pressed onto the filter plate 21. The two sides of the filter plate 21 are slidably connected to the inner wall of the limiting groove 46. An installation shaft 25 is rotatably connected to the middle of the filter plate 21. A rotating seat 251 is fixedly connected to the upper end of the installation shaft 25. The rotating seat 251 is inserted and fixed onto the filter plate 21 through a limiting pin 26. A gripper 27 is fixedly installed at the lower end of the installation shaft 25. A roller 28 is rotatably installed at the bottom of the gripper 27.

[0039] The pressure rod 43 presses down on the filter plate 21, causing the gripper 27 to engage with the wedge 24. The mounting shaft 25 is rotatably mounted in the middle of the filter plate 21, with a rotating seat 251 at the upper end. Before sealing the collection tank 22, the rotating seat 251 is fixed by the limiting pin 26 to ensure that the gripper 27 and the wedge 24 are precisely engaged. The roller 28 contacts the wedge 24 to reduce engagement friction. When it is necessary to remove the solid, the limiting pin 26 is pulled out, the rotating seat 251 is rotated, and the gripper 27 is moved into the gap of the wedge 24, and the filter plate 21 is removed.

[0040] The working principle of this lithium phosphate purification device for removing calcium and magnesium:

[0041] The solution and extractant enter the extraction tank 4 through the first feed pipe 41 and the second feed pipe 44 to carry out the extraction reaction and remove calcium and magnesium impurities. After the reaction is completed, the first electric push rod 33 of the drive mechanism 3 moves the second feed pipe 44 outward to avoid interfering with the filtration process. The pressure rod 43 presses down on the filter plate 21, so that the gripper 27 is locked on the wedge 24 of the collection tank 22. The solid product is sealed in the collection tank 22. Then, the second electric push rod 5 pushes the support plate 52 down, the collection tank 22 descends, the bottom of the extraction tank 4 is opened, the liquid flows into the bottom box 1 and is discharged from the liquid outlet pipe 12. The valve of the liquid outlet on the collection tank 22 is opened to discharge the residual liquid. After that, the collection tank 22 is removed through the guide rail 13 and the slide table 14. The limit pin 26 is pulled out and the rotating seat 251 is rotated to make the gripper 27 disengage from the gap of the wedge 24. The filter plate 21 can then be removed and the solid product can be taken out for subsequent operations.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A purification device for removing calcium and magnesium from lithium phosphate, comprising an extraction tank (4), characterized in that: The extraction tank (4) is fixedly connected to a first feed pipe (41) and a movable sleeve (45) on both sides respectively. The movable sleeve (45) is slidably inserted into a second feed pipe (44) through a drive mechanism (3). The bottom of the extraction tank (4) is provided with a bottom box (1). The extraction tank (4) and the bottom box (1) are provided with a collection mechanism (2). The collection mechanism (2) includes a filter plate (21) and a collection tank (22). The bottom of the filter plate (21) is pressed on a section of the second feed pipe (44) extending into the extraction tank (4). The filter plate (21) and the collection tank (22) are respectively provided with a clamp (27) and a wedge (24). The clamp (27) and the wedge (24) are engaged.

2. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 1, characterized in that: The bottom box (1) is sealed with a door (11) on one side. The bottom box (1) is provided with a liquid outlet pipe (12). The bottom box (1) is fixedly installed with a guide rail (13). A slide table (14) is slidably connected to the guide rail (13).

3. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 2, characterized in that: A second electric push rod (5) and a telescopic rod (51) are fixedly installed on the slide (14). The output end of the second electric push rod (5) is fixedly connected to a support plate (52). The collection tank (22) is installed on the support plate (52).

4. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 1, characterized in that: A sealing ring (221) is fixedly connected to the outside of the collection tank (22), and sealing blocks (222) are fixedly connected to both sides of the collection tank (22). A limiting groove (46) is opened on the inner wall of the extraction barrel (4). The sealing ring (221) abuts against the lower surface of the extraction barrel (4), and the sealing block (222) is inserted into the lower end of the limiting groove (46).

5. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 1, characterized in that: An installation rod (23) is fixedly connected to the middle of the collection tank (22), and the wedge (24) is fixedly installed on the outer circumferential surface of the upper end of the installation rod (23).

6. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 1, characterized in that: A collar (47) is slidably connected inside the movable sleeve (45), and the collar (47) is fixedly installed on the second feed pipe (44).

7. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 1, characterized in that: The drive mechanism (3) includes a first fixed plate (31) and a second fixed plate (32). The first fixed plate (31) and the second fixed plate (32) are fixedly installed on the movable sleeve (45). A first electric push rod (33) is fixedly installed at one end of the first fixed plate (31) and the second fixed plate (32). The output end of the first electric push rod (33) is fixedly connected to the movable plate (35). The middle part of the movable plate (35) is fixedly sleeved on the second feed pipe (44). A guide rod (34) is fixedly connected at the end of the movable plate (35) away from the first electric push rod (33). The guide rod (34) slides through the second fixed plate (32).

8. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 4, characterized in that: The upper end of the extraction tank (4) is fixedly connected to a sealing cap (42), and a pressure rod (43) is slidably inserted into the middle of the sealing cap (42). The upper end of the pressure rod (43) is folded, and the lower end of the pressure rod (43) is pressed onto the filter plate (21). The two sides of the filter plate (21) are slidably connected to the inner wall of the limiting groove (46).

9. The purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 1, characterized in that: The filter plate (21) is rotatably connected to the middle of the filter plate (21), and a rotating seat (251) is fixedly connected to the upper end of the mounting shaft (25). The rotating seat (251) is fixed to the filter plate (21) by a limiting pin (26).

10. A purification apparatus for removing calcium and magnesium from lithium phosphate according to claim 9, characterized in that: The gripper (27) is fixedly installed at the lower end of the mounting shaft (25), and a roller (28) is rotatably installed at the bottom of the gripper (27).

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