Extraction device of lithium battery electrolyte lithium hexafluorophosphate

Abstract

The utility model belongs to the technical field of lithium hexafluorophosphate extraction devices, and particularly relates to an extraction device for lithium battery electrolyte lithium hexafluorophosphate. Comprising an equipment body, the equipment body comprises an upper cover and a tank body, moving rods are connected to the two sides of the upper cover and connected with lifting assemblies in fixing frames on the two sides, the lifting assemblies can drive the upper cover to move upwards to be away from the tank body, rotating rods are connected to the two sides of the tank body, and the rotating rod on one side is rotationally connected with the fixing frames; the rotating rod on the other side extends into the fixing frame on the same side and is connected with a driving unit, and the driving unit can drive the tank body to rotate through the rotating rod on the same side; when cleaning is needed, the angle of the tank body is convenient to adjust, and workers can conveniently clean the interior of the tank body.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium hexafluorophosphate extraction devices, and in particular relates to a device for extracting lithium hexafluorophosphate, an electrolyte of a lithium battery. Background Art

[0002] During the production and extraction of lithium hexafluorophosphate, the cleanliness of the equipment has a very important impact on the purity of the product. If the tank is not cleaned thoroughly after extraction, some byproducts of the previous reaction, unreacted raw materials or other impurities may remain. These residual substances will contaminate the product of the next extraction, resulting in insufficient purity of lithium hexafluorophosphate, which in turn affects the quality of the final battery electrolyte and the performance of the battery. Workers usually need to open the tank cover and use tools to clean the inside of the tank. Due to the angle of the existing tank, it is inconvenient for operators to use tools to clean the inside of the tank, resulting in inadequate cleaning, affecting the next extracted product. Utility Model Content

[0003] The purpose of the utility model is to provide a device for extracting lithium hexafluorophosphate from lithium battery electrolyte in order to solve the above-mentioned technical problems. When cleaning is required, the angle of the tank body can be easily adjusted, so that the staff can clean the inside of the tank body easily.

[0004] In view of this, the utility model provides a device for extracting lithium hexafluorophosphate from lithium battery electrolyte, including a device main body, the device main body including an upper cover and a tank body, movable rods are connected on both sides of the upper cover, the movable rods are connected to lifting components in fixed frames on both sides, the lifting components can drive the upper cover upward away from the tank body, rotating rods are connected on both sides of the tank body, the rotating rod on one side is rotatably connected to the fixed frame, and the rotating rod on the other side extends into the fixed frame on the same side and is connected to a driving unit, and the driving unit can drive the tank body to rotate through the rotating rod on the same side.

[0005] In the present technical solution, when the tank body needs to be cleaned, the lifting assembly arranged in the fixed frame drives the upper cover to move upward through the moving rod until the stirring device connected to the upper cover or other reaction device connected to the upper cover is completely separated from the tank body, and the driving unit on one side of the fixed frame drives the rotating rod on the same side to rotate, so that the tank body tilts to one side, which is convenient for the operator to clean the inside of the tank body and avoid some by-products of the previous reaction, unreacted raw materials or other impurities remaining in the tank body. These residual substances will contaminate the product extracted next time, resulting in insufficient purity of lithium hexafluorophosphate, which in turn affects the quality of the final battery electrolyte and the performance of the battery.

[0006] In the above technical solution, the lifting assembly includes a screw rod rotatably arranged in a fixed frame on one side, the screw rod driving is connected to a first motor, a first slider is threadedly connected to the screw rod, the first slider is connected to the upper cover through a moving rod, a sliding rod is arranged in the fixed frame on the other side, a second slider is slidably arranged on the sliding rod, and the second slider is connected to the upper cover through a moving rod.

[0007] In the above technical solution, further, a fixed ring plate is provided between the moving rod and the upper cover, and the fixed ring plate is fixedly connected to the side wall of the upper cover.

[0008] In the present technical solution, the first motor is fixedly arranged on the outer wall of the fixed frame on one side of the screw rod, and the output end of the first motor penetrates into the fixed frame to drive the screw rod to rotate. The driving structure is a common helical gear combination, that is, one helical gear and the output end of the first motor are coaxially fixedly connected, and the other helical gear and the screw rod are coaxially fixedly connected. The two helical gears are meshed, and the rotation of the screw rod drives the first fixed block to move along the length direction of the screw rod, and the upper cover is driven to move by the moving rod, so that the cover body and the reaction device arranged on the cover body are completely separated from the tank body, which is convenient for cleaning the tank body. At the same time, the moving rods on both sides are connected to the fixed ring plate, and the fixed ring plate and the side wall of the upper cover are fixedly connected to ensure stability when the upper cover is moved.

[0009] In the above technical solution, further, the driving unit includes a turbine coaxially fixedly connected to the rotating rod, the turbine is meshed with a worm, the worm is rotatably arranged on the fixed frame, and also includes a second motor arranged outside the fixed frame, and the output end of the second motor passes through the side wall of the fixed frame and is connected to the worm.

[0010] In this technical solution, the second motor output end and the worm are coaxially fixedly connected, and the cooperation of the worm and the turbine can be self-locking, thereby ensuring that the tank body remains stationary after rotation, facilitating cleaning by staff and ensuring the safety of staff during cleaning.

[0011] In the above technical solution, further, the rotating rod is connected to a fixing sleeve fixedly arranged outside the tank body, and the fixing sleeve is in contact with the lower half of the tank body.

[0012] In the above technical solution, further, a through opening is provided at the bottom of the fixing sleeve.

[0013] In the present technical solution, the fixed sleeve is fixedly connected to the tank body, and rotating rods are fixedly connected on both sides of the fixed sleeve. The setting of the fixed sleeve can also increase the fixing area of ​​the tank body and can provide good support for the tank body. At the same time, a through opening is set at the bottom of the fixed sleeve to facilitate the discharge of materials in the tank body after the reaction is completed through the pipeline.

[0014] In the above technical solution, further, the fixing frame includes an upper fixing part and a lower fixing part, the upper fixing part and the lower fixing part are detachably connected, and the upper fixing part and the lower fixing part are respectively provided with a lifting assembly and a driving unit.

[0015] In the present technical solution, the upper fixing part and the lower fixing part are detachably connected and installed by fasteners such as bolts. The upper fixing part can be removed and the upper cover can be lifted by other devices, such as a winch or other lifting devices. The tank body is still rotatably connected to the lower fixing part. The driving unit in the lower fixing part drives the rotation of the tank body and maintains the self-locking position of the tank body by driving the rotating rod. The rotating connection between the tank body and the lower fixing part in this patent alone should also fall within the scope of protection.

[0016] The beneficial effects of the utility model are:

[0017] 1. When the tank needs to be cleaned, the lifting assembly installed in the fixed frame drives the upper cover to move upward through the moving rod until the stirring device connected to the upper cover or other reaction devices connected to the upper cover are completely separated from the tank body. The driving unit on one side of the fixed frame drives the rotating rod on the same side to rotate, so that the tank body tilts to one side, which is convenient for operators to clean the inside of the tank body;

[0018] 2. The output end of the second motor is coaxially fixedly connected to the worm, and the cooperation of the worm and worm can be self-locking, thereby ensuring that the tank body remains stationary after rotation, which is convenient for the staff to clean and ensures the safety of the staff during cleaning;

[0019] 3. The fixed sleeve is fixedly connected to the tank body, and rotating rods are fixedly connected on both sides of the fixed sleeve. The setting of the fixed sleeve can also increase the fixing area of ​​the tank body and can provide good support for the tank body. At the same time, a through port is set at the bottom of the fixed sleeve to facilitate the discharge of materials after the reaction in the tank body is completed through the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a structural schematic diagram of this fixed sleeve.

[0023] The symbols in the figure are:

[0024] 1. Equipment body; 2. Upper cover; 3. Tank body; 4. Moving rod; 5. Fixed frame; 6. Rotating rod; 7. Screw; 8. First motor; 9. First slider; 10. Sliding rod; 11. Second slider; 12. Fixed ring plate; 13. Turbine; 14. Worm; 15. Second motor; 16. Fixed sleeve; 17. Through port; 18. Upper fixed part; 19. Lower fixed part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0026] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0029] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0030] Embodiment 1:

[0031] like Figure 1-3 As shown, this embodiment provides a device for extracting lithium hexafluorophosphate from lithium battery electrolyte, including an equipment body 1, the equipment body 1 includes an upper cover 2 and a tank body 3, moving rods 4 are connected to both sides of the upper cover 2, the moving rods 4 are connected to the lifting components in the fixed frames 5 on both sides, the lifting components can drive the upper cover 2 upward away from the tank body 3, rotating rods 6 are connected to both sides of the tank body 3, the rotating rod 6 on one side is rotatably connected to the fixed frame 5, and the rotating rod 6 on the other side extends into the fixed frame 5 on the same side and is connected to a driving unit, and the driving unit can drive the tank body 3 to rotate through the rotating rod 6 on the same side. When the tank body 3 needs to be cleaned, the lifting assembly arranged in the fixing frame 5 drives the upper cover 2 to move upward through the moving rod 4 until the stirring device connected to the upper cover 2 or other reaction devices connected to the upper cover 2 are completely separated from the tank body 3, and the driving unit on one side of the fixing frame 5 drives the rotating rod 6 on the same side to rotate, so that the tank body 3 tilts to one side, which is convenient for the operator to clean the inside of the tank body 3 and avoid some by-products of the previous reaction, unreacted raw materials or other impurities remaining in the tank body 3. These residual substances will contaminate the product extracted next time, resulting in insufficient purity of lithium hexafluorophosphate, thereby affecting the quality of the final battery electrolyte and the performance of the battery.

[0032] like Figure 1 and Figure 2As shown, the lifting assembly includes a screw rod 7 rotatably arranged in a fixed frame 5 on one side, the screw rod 7 is drivingly connected to a first motor 8, a first slider 9 is threadedly connected to the screw rod 7, and the first slider 9 is connected to the upper cover 2 through a moving rod 4, and a slide rod 10 is arranged in the fixed frame 5 on the other side, a second slider 11 is slidably arranged on the slide rod 10, and the second slider 11 is connected to the upper cover 2 through the moving rod 4. A fixed ring plate 12 is arranged between the moving rod 4 and the upper cover 2, and the fixed ring plate 12 is fixedly connected to the side wall of the upper cover 2. The first motor 8 is fixedly arranged on the outer wall of the fixing frame 5 on one side of the screw rod 7. The output end of the first motor 8 penetrates into the fixing frame 5 to drive the screw rod 7 to rotate. The driving structure is a common helical gear matching, that is, one helical gear and the output end of the first motor 8 are coaxially fixedly connected, and the other helical gear and the screw rod 7 are coaxially fixedly connected. The two helical gears are meshed, and the rotation of the screw rod 7 drives the first fixed block to move along the length direction of the screw rod 7, and drives the upper cover 2 to move through the moving rod 4, so that the cover body and the reaction device arranged on the cover body are completely separated from the tank body 3, which is convenient for cleaning the tank body 3. At the same time, the moving rods 4 on both sides are connected to the fixed ring plate 12, and the fixed ring plate 12 is fixedly connected to the side wall of the upper cover 2 to ensure stability when the upper cover 2 is moved.

[0033] Embodiment 2:

[0034] This embodiment provides a device for extracting lithium hexafluorophosphate from lithium battery electrolyte, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0035] like Figure 1 and Figure 2 As shown, the drive unit includes a turbine 13 coaxially fixedly connected to the rotating rod 6, the turbine 13 is meshed with a worm 14, and the worm 14 is rotatably arranged on the fixed frame 5, and also includes a second motor 15 arranged outside the fixed frame 5, and the output end of the second motor 15 passes through the side wall of the fixed frame 5 and is connected to the worm 14. The output end of the second motor 15 is coaxially fixedly connected to the worm 14, and the cooperation of the turbine 13 and the worm 14 can be self-locking, thereby ensuring that the tank body 3 remains stationary after rotation, which is convenient for the staff to clean and ensures the safety of the staff when cleaning.

[0036] like Figure 1-3 As shown, the rotating rod 6 is connected to the fixing sleeve 16 fixedly arranged outside the tank body 3, and the fixing sleeve 16 is in contact with the lower half of the tank body 3. A through hole 17 is arranged at the bottom of the fixing sleeve 16. The fixing sleeve 16 is fixedly connected to the tank body 3, and the rotating rod 6 is fixedly connected to both sides of the fixing sleeve 16. The setting of the fixing sleeve 16 can also increase the fixing area of ​​the tank body 3, and can play a good supporting role for the tank body 3. At the same time, the through hole 17 is arranged at the bottom of the fixing sleeve 16 to facilitate the discharge of the reaction-completed materials in the tank body 3 through the pipeline.

[0037] Embodiment 3:

[0038] This embodiment provides a device for extracting lithium hexafluorophosphate from lithium battery electrolyte, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0039] The fixing frame 5 includes an upper fixing portion 18 and a lower fixing portion 19, which are detachably connected. The upper fixing portion 18 and the lower fixing portion 19 are respectively provided with a lifting assembly and a driving unit. The upper fixing portion 18 and the lower fixing portion 19 are detachably connected and installed by bolts and other fasteners. The upper fixing portion 18 can be removed and other devices can be used to lift the upper cover 2, such as a hoist or other lifting device. The tank body 3 is still connected to the lower fixing portion 19 by rotation. The driving unit in the lower fixing portion 19 drives the rotation of the tank body 3 and maintains the self-locking position of the tank body 3 by driving the rotating rod 6. The rotation connection between the tank body 3 and the lower fixing portion 19 in this patent alone should also fall within the scope of protection.

[0040] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A device for extracting lithium hexafluorophosphate from lithium battery electrolyte, characterized in that: The device comprises a device body (1), wherein the device body (1) comprises an upper cover (2) and a tank body (3), wherein movable rods (4) are connected to both sides of the upper cover (2), wherein the movable rods (4) are connected to lifting components in fixed frames (5) on both sides, and wherein the lifting components can drive the upper cover (2) upward away from the tank body (3), wherein rotating rods (6) are connected to both sides of the tank body (3), wherein the rotating rod (6) is rotatably connected to the fixed frame (5) on one side, and wherein the rotating rod (6) on the other side extends into the fixed frame (5) on the same side and is connected to a driving unit, wherein the driving unit can drive the tank body (3) to rotate via the rotating rod (6) on the same side.

2. The device for extracting lithium hexafluorophosphate from lithium battery electrolyte according to claim 1, characterized in that: The lifting assembly comprises a screw rod (7) rotatably arranged in a fixed frame (5) on one side, the screw rod (7) is drivingly connected to a first motor (8), a first slider (9) is threadedly connected to the screw rod (7), the first slider (9) is connected to the upper cover (2) through a moving rod (4), a sliding rod (10) is arranged in the fixed frame (5) on the other side, a second slider (11) is slidably arranged on the sliding rod (10), and the second slider (11) is connected to the upper cover (2) through the moving rod (4).

3. The device for extracting lithium hexafluorophosphate from lithium battery electrolyte according to claim 2, characterized in that: A fixed ring plate (12) is provided between the moving rod (4) and the upper cover (2), and the fixed ring plate (12) is fixedly connected to the side wall of the upper cover (2).

4. The device for extracting lithium hexafluorophosphate from lithium battery electrolyte according to claim 1, characterized in that: The drive unit comprises a turbine (13) coaxially fixedly connected to the rotating rod (6), the turbine (13) being meshed with a worm (14), the worm (14) being rotatably arranged on a fixed frame (5), and further comprises a second motor (15) arranged outside the fixed frame (5), the output end of the second motor (15) passing through a side wall of the fixed frame (5) and connected to the worm (14).

5. The device for extracting lithium hexafluorophosphate from lithium battery electrolyte according to claim 4, characterized in that: The rotating rod (6) is connected to a fixed sleeve (16) fixedly arranged outside the tank body (3), and the fixed sleeve (16) is in contact with the lower half of the tank body (3).

6. The device for extracting lithium hexafluorophosphate from lithium battery electrolyte according to claim 5, characterized in that: The bottom of the fixing sleeve (16) is provided with a through opening (17).

7. A device for extracting lithium hexafluorophosphate from lithium battery electrolyte according to any one of claims 1 to 6, characterized in that: The fixing frame (5) comprises an upper fixing part (18) and a lower fixing part (19), the upper fixing part (18) and the lower fixing part (19) are detachably connected, and the upper fixing part (18) and the lower fixing part (19) are respectively provided with a lifting assembly and a driving unit.

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