Equipment for preparing alkali metal salt electrolyte

Abstract

The utility model provides equipment for preparing alkali metal salt electrolyte, which comprises a storage tank and a mixing drum, a retainer plate is fixedly connected in the storage tank, a partition plate is arranged above the retainer plate and is used for dividing the storage tank into a plurality of cavities, a plurality of blanking holes are arranged on the retainer plate, a blanking plate is rotatably connected in the storage tank, and the cavity is provided with a plurality of discharge holes. The blanking plate is in sliding fit with the material supporting plate, a discharging hole is formed in the blanking plate, the periphery of the blanking plate is connected with a rotating pushing handle, and the rotating pushing handle is connected to the material storage tank in a sliding mode. According to the equipment for preparing the alkali metal salt electrolyte provided by the utility model, the material storage tank can be divided into a plurality of cavities by the partition plates so as to accommodate different materials, and the blanking plate is driven to rotate by pushing the rotary pushing handle, so that the unloading holes in the blanking plate correspond to the blanking holes in the blanking plate up and down; by means of the discharging mode, the discharging efficiency of the materials is improved, the feeding process is simplified, and the preparation efficiency of the electrolyte is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolyte preparation, and more specifically relates to a device for preparing an alkali metal salt electrolyte. Background Art

[0002] With the development of new energy technology, more and more lithium batteries are used as power sources in electric vehicles. Batteries generally use alkali metal salts and organic solvents to form electrolytes, which are carriers for ion transmission in batteries. The electrolyte plays a role in conducting ions between the positive and negative electrodes of the battery, and is the guarantee for the battery to obtain advantages such as high voltage and high specific energy.

[0003] The inventors have found that the existing electrolyte preparation device has the problem of needing to load multiple materials separately, and the material addition speed is slow and the uniformity is poor, which seriously affects the preparation efficiency of the electrolyte. Utility Model Content

[0004] The utility model aims to provide a device for preparing alkali metal salt electrolyte, which can realize synchronous feeding of multiple materials, help to improve feeding efficiency and reduce operation difficulty.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an apparatus for preparing alkali metal salt electrolyte, including a storage tank and a stirring drum arranged below the storage tank, a supporting plate is fixedly connected inside the storage tank, a partition plate extending upward is provided on the supporting plate, the partition plate is used to separate the storage tank into multiple cavities, a plurality of blanking holes corresponding to the multiple cavities are provided on the supporting plate, a blanking plate located below the supporting plate is rotatably connected inside the storage tank, the blanking plate and the supporting plate are slidably matched, a discharge hole corresponding to the discharge hole up and down is provided on the blanking plate, a rotating push handle arranged through the peripheral wall of the storage tank is connected to the outer periphery of the blanking plate, the rotating push handle is slidably connected to the storage tank along the circumference of the storage tank, and the rotating push handle is used to drive the blanking plate to rotate so that the discharge hole corresponds to the discharge hole up and down.

[0006] In a possible implementation, the support plate and the blanking plate are respectively cone bucket structures opening upward, the discharge hole is arranged on the peripheral wall of the blanking plate, and the blanking hole is arranged on the peripheral wall of the support plate, and the diameter of the discharge hole is larger than the diameter of the blanking hole.

[0007] In some embodiments, a fixing ring for supporting below the outer periphery of the blanking plate is provided on the inner wall of the storage tank, and the top surface of the fixing ring is slidably matched with the top surface of the blanking plate.

[0008] In some embodiments, a distribution cone bucket with a downward opening is connected below the blanking plate. The distribution cone bucket is connected to the bottom of the center of the blanking plate through a connecting rod. The distribution cone bucket is used to receive the material in the discharge hole and disperse the material into the mixing drum.

[0009] In one possible implementation, a middle column is provided in the middle of the storage tank, which is connected to the top of the supporting plate and extends upward along the main axis of the storage tank. One side edge of the partition plate is connected to the outer peripheral wall of the middle column, and the other side edge is connected to the inner peripheral wall of the storage tank.

[0010] In a possible implementation, two winches are symmetrically arranged on both sides of the rotating push handle on the outside of the storage tank. The two winches are connected to the rotating push handle through pull ropes respectively, and the winches are used to drive the rotating push handle and the blanking plate to rotate circumferentially.

[0011] In a possible implementation, the mixing drum has an outer convex portion protruding outward from the storage tank, a liquid inlet pipe is provided at the top of the outer convex portion, and a discharge pipe is provided at the bottom of the mixing drum.

[0012] In one possible implementation, a stirring assembly with a main shaft extending in a horizontal direction is provided in the stirring drum, and the stirring assembly includes a stirring shaft arranged through the side wall of the stirring drum, a rotating drive connected to the outer end of the stirring shaft, and a stirring blade connected to the outer periphery of the stirring shaft, and a connecting hole is provided through the stirring blade.

[0013] In some embodiments, the outer end of the stirring blade away from the stirring shaft gradually extends obliquely toward a side close to the rotating driving member, and a plurality of connecting holes are provided at intervals along the extending direction of the stirring blade.

[0014] In some embodiments, an axially extending disturbance rod is further provided on the stirring blade. The disturbance rod is located on a side of the stirring blade away from the rotating drive member. A plurality of disturbance rods are connected to the same stirring blade.

[0015] Compared with the prior art, the scheme shown in the embodiment of the present application is that the partition plate can divide the space of the storage tank located on the upper part of the support plate into multiple cavities to accommodate different materials. The blanking plate is driven to rotate by pushing the rotating push handle so that the discharge holes on the blanking plate correspond to the discharge holes on the blanking plate up and down, so that the materials in the cavity are discharged into the mixing drum below in an orderly manner. The above-mentioned blanking method improves the unloading efficiency of the material, and is convenient for preparing the next round of materials in the upper storage tank while the materials in the mixing drum below are reacting, which helps to simplify the loading process and improve the preparation efficiency of the electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of a partial cross-sectional structure of a device for preparing an alkali metal salt electrolyte provided in an embodiment of the utility model;

[0018] Figure 2 For the utility model embodiment Figure 1 The partially enlarged structural diagram of middle Ⅰ;

[0019] Figure 3 For the utility model embodiment Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 4 For the utility model embodiment Figure 3 Schematic diagram of the partially enlarged structure of II.

[0021] Among them, the reference numerals in the figure are:

[0022] 1. Storage tank; 11. Support plate; 12. Partition plate; 13. Dropping hole; 14. Fixed ring; 15. Intermediate column; 16. Winch; 17. Pull rope; 18. Cover; 19. Sliding groove; 2. Mixing drum; 21. Outer convex part; 22. Liquid inlet pipe; 23. Discharge pipe; 3. Dropping plate; 31. Discharge hole; 32. Rotating push handle; 33. Distribution cone bucket; 4. Mixing assembly; 41. Mixing shaft; 42. Rotating drive member; 43. Mixing blade; 44. Connecting hole; 45. Disturbance rod. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0025] Please also read Figures 1 to 4 , the device for preparing alkali metal salt electrolyte provided by the utility model is now described. The device for preparing alkali metal salt electrolyte comprises a storage tank 1 and a mixing drum 2 arranged below the storage tank 1, a supporting plate 11 is fixedly connected inside the storage tank 1, a partition plate 12 extending upward is provided on the supporting plate 11, the partition plate 12 is used to separate the storage tank 1 into multiple cavities, a plurality of blanking holes 13 corresponding to the multiple cavities are provided on the supporting plate 11, a blanking plate 3 located below the supporting plate 11 is rotatably connected inside the storage tank 1, the blanking plate 3 is slidably matched with the supporting plate 11, a discharge hole 31 corresponding to the discharge hole 13 is provided on the blanking plate 3, a rotating handle 32 arranged through the peripheral wall of the storage tank 1 is connected to the outer periphery of the blanking plate 3, the rotating handle 32 is slidably connected to the storage tank 1 along the circumference of the storage tank 1, and the rotating handle 32 is used to drive the blanking plate 3 to rotate so that the discharge hole 31 corresponds to the discharge hole 13 up and down.

[0026] The device for preparing alkali metal salt electrolyte provided in this embodiment, compared with the prior art, is a device for preparing alkali metal salt electrolyte provided in this embodiment, wherein the partition plate 12 can divide the space of the storage tank 1 located on the upper part of the support plate 11 into a plurality of cavities to accommodate different materials, and the blanking plate 3 is driven to rotate by pushing the rotating push handle 32, so that the discharge hole 31 on the blanking plate 3 corresponds to the discharge hole 13 on the blanking plate 3 up and down, so that the material in the cavity is discharged in an orderly manner into the mixing drum 2 below. The above-mentioned blanking method improves the material unloading efficiency, and is convenient for preparing the next round of materials in the upper storage tank 1 while the materials in the mixing drum 2 below react, which helps to simplify the loading process and improve the preparation efficiency of the electrolyte.

[0027] In this embodiment, the storage tank 1 is used to contain dimethyl carbonate, and the storage tank 1 is used to contain three substances, potassium hexafluorophosphate, lithium bromide and anhydrous magnesium oxide as a catalyst. A detachable cover 18 is provided on the top of the storage tank 1. During the preparation process, the three substances, potassium hexafluorophosphate, lithium bromide and anhydrous magnesium oxide, are weighed according to the required amount and placed in the cavity of the storage tank 1 respectively. The three substances are unloaded synchronously by aligning the unloading hole 31 on the unloading plate 3 with the unloading hole 13 on the supporting plate 11, which helps to improve the unloading efficiency and accelerate the reaction process.

[0028] In one possible implementation, see Figures 1 to 4 The support plate 11 and the blanking plate 3 are respectively cone bucket structures with openings facing upwards, the discharge hole 31 is arranged on the peripheral wall of the blanking plate 3, and the blanking hole 13 is arranged on the peripheral wall of the support plate 11, and the diameter of the discharge hole 31 is larger than the diameter of the blanking hole 13.

[0029] In this embodiment, the support plate 11 adopts a cone bucket structure, and the corresponding blanking plate 3 also adopts a cone bucket structure. This structure facilitates the material in the cavity to flow to the blanking hole 13, thereby improving the material unloading efficiency.

[0030] Specifically, the discharge hole 31 is arranged on the peripheral wall of the blanking plate 3 , and the diameter of the discharge hole 31 is larger than the blanking hole 13 , so that the materials in the blanking hole 13 can be completely discharged, and it also helps to improve the discharge efficiency.

[0031] For some examples, see Figures 1 to 4 The inner wall of the storage tank 1 is provided with a fixing ring 14 for supporting the lower part of the outer periphery of the blanking plate 3, and the top surface of the fixing ring 14 is slidably matched with the top surface of the blanking plate 3. The fixing ring 14 provided on the inner wall of the storage tank 1 is used to effectively support the blanking plate 3, and the top surface of the fixing ring 14 is slidably matched with the bottom surface of the blanking plate 3, and the blanking plate 3 can be supported and limited so that the discharge hole 31 of the blanking plate 3 can correspond to or stagger with the blanking hole 13 by rotating the blanking plate 3.

[0032] Furthermore, in order to enable the materials to be completely discharged into the mixing drum 2 below, a vibration motor may be provided on the side of the partition plate 12 or on the side of the middle column 15 to achieve complete discharge of the materials through vibration.

[0033] For some examples, see Figures 1 to 4 A distribution cone bucket 33 with an opening downward is connected to the bottom of the blanking plate 3. The distribution cone bucket 33 is connected to the bottom of the center of the blanking plate 3 through a connecting rod. The distribution cone bucket 33 is used to receive the material in the discharge hole 31 and disperse the material into the mixing drum 2.

[0034] In this embodiment, by providing a distribution cone hopper 33 below the blanking plate 3, the material can be effectively dispersed, so that the material flows downward along the outer peripheral wall of the distribution cone hopper 33, so that the material is evenly dispersed into the mixing drum 2. The distribution cone hopper 33 is connected to the bottom center of the blanking plate 3 through a connecting rod to ensure the reliability of the connection.

[0035] In one possible implementation, see Figures 1 to 4 An intermediate column 15 is provided in the middle of the storage tank 1, which is connected to the top of the supporting plate 11 and extends upward along the main axis of the storage tank 1. One side edge of the partition plate 12 is connected to the outer peripheral wall of the intermediate column 15, and the other side edge is connected to the inner peripheral wall of the storage tank 1.

[0036] In this embodiment, the central column arranged at the center of the storage tank 1 facilitates the arrangement of the partition plate 12, so that the space of the storage tank 1 above the support plate 11 can be divided into multiple cavities, thereby improving the stability of the installation of the partition plate 12 and ensuring the effective separation of materials.

[0037] When the rotating push handle 32 is driven to make the blanking plate 3 circumferentially move, the operator can directly push it manually, which is simple and convenient to operate. The storage tank 1 is provided with a sliding groove 19 extending circumferentially, and the rotating push handle 32 is slidably connected in the sliding groove 19. The two ends of the sliding groove 19 correspond to the upper and lower corresponding positions of the discharge hole 31 and the blanking hole 13 or the upper and lower staggered positions, which is convenient for the operator to directly push the rotating push handle 32 to the limit position corresponding to the end of the sliding groove 19, thereby improving the convenience of operation.

[0038] As a parallel example, see Figures 1 to 4 Two winches 16 are symmetrically arranged on both sides of the rotating push handle 32 on the outside of the storage tank 1. The two winches 16 are connected to the rotating push handle 32 through pull ropes 17 respectively. The winches 16 are used to drive the rotating push handle 32 and the blanking plate 3 to rotate circumferentially.

[0039] In this embodiment, two winches 16 are arranged outside the storage tank 1, and the two winches 16 cooperate with each other to perform pulling operations in different directions on the rotating push handle 32. When it is necessary to drive the rotating push handle 32 to drive the blanking plate 3 to rotate clockwise, one of the winches 16 is in a winding state, and the other winch 16 is in an unwinding state, so as to meet the driving demand for the rotating push handle 32. When it is necessary to drive the rotating push handle 32 to drive the blanking plate 3 to rotate counterclockwise, the above two winches 16 each change their own winding and unwinding state to meet the driving demand for the rotating push handle 32.

[0040] In one possible implementation, see Figures 1 to 4The mixing drum 2 has an outer convex portion 21 protruding from the storage tank 1 toward the outer circumference, a liquid inlet pipe 22 is provided at the top of the outer convex portion 21, and a material discharge pipe 23 is provided at the bottom of the mixing drum 2. The outer convex portion 21 of the mixing drum 2 is used to install the liquid inlet pipe 22, so that the dimethyl carbonate liquid can smoothly enter the mixing drum 2 through the liquid inlet pipe 22, and then the material is dropped into the mixing drum 2 by the rotation of the drop plate 3, which is convenient for adding materials or solutions.

[0041] In one possible implementation, see Figures 1 to 4 A stirring assembly 4 with a main shaft extending in a horizontal direction is provided in the stirring drum 2. The stirring assembly 4 includes a stirring shaft 41 that passes through the side wall of the stirring drum 2, a rotating driving member 42 connected to the outer end of the stirring shaft 41, and a stirring blade 43 connected to the outer periphery of the stirring shaft 41. A connecting hole 44 is penetrated through the stirring blade 43.

[0042] In this embodiment, the solution and the material in the mixing drum 2 are stirred by the stirring assembly 4 to improve the uniformity of the mixing. The stirring blades 43 on the outer periphery of the stirring shaft 41 are provided with connecting holes 44, which can reduce the resistance encountered by the stirring blades 43 during the stirring process, and at the same time, the flow of the solution in the connecting holes 44 can be used to improve the disturbance effect, thereby ensuring the uniformity of the distribution of the material in the solution.

[0043] For some examples, see Figures 1 to 4 The outer end of the stirring blade 43 away from the stirring shaft 41 gradually extends obliquely toward the side close to the rotating driving member 42, and a plurality of communicating holes 44 are provided at intervals along the extending direction of the stirring blade 43. The stirring blade 43 is arranged as an obliquely extending structure, so that the length of the stirring blade 43 is increased under the condition that the height of the stirring drum 2 is constant, the disturbing effect on the material and the solution is improved, and the uniformity of the stirring is enhanced.

[0044] For some examples, see Figures 1 to 4 The stirring blade 43 is also provided with an axially extending disturbance rod 45, which is located on the side of the stirring blade 43 away from the rotating drive member 42, and a plurality of disturbance rods 45 are connected to the same stirring blade 43. The provision of the disturbance rod 45 further enhances the stirring effect of the stirring blade 43, facilitates improving the stirring efficiency, and ensures the uniformity of the stirring.

[0045] In the above-mentioned equipment for preparing alkali metal salt electrolyte, the partition plate 12 can divide the space of the storage tank 1 located on the upper part of the supporting plate 11 into multiple cavities to accommodate different materials. The blanking plate 3 is driven to rotate by pushing the rotating push handle 32, so that the discharge hole 31 on the blanking plate 3 corresponds to the discharge hole 13 on the blanking plate 3 up and down, so that the material in the cavity is discharged in an orderly manner into the mixing drum 2 below. The above-mentioned blanking method improves the material unloading efficiency, and is convenient for preparing the next round of materials in the upper storage tank 1 while the materials in the mixing drum 2 below react, which helps to simplify the loading process and improve the preparation efficiency of the electrolyte.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for preparing an alkali metal salt electrolyte, characterized in that: The invention comprises a material storage tank (1) and a mixing drum (2) arranged below the material storage tank (1); a material support plate (11) is fixedly connected inside the material storage tank (1); a partition plate (12) extending upward is provided on the material support plate (11); the partition plate (12) is used to separate the material storage tank (1) into a plurality of cavities; a plurality of material drop holes (13) arranged one-to-one corresponding to the plurality of cavities are provided on the material support plate (11); a material drop plate (3) located below the material support plate (11) is rotatably connected inside the material storage tank (1); the drop holes (13) are arranged to rotate with the material storage tank (1) and to rotate with the material drop plate (3) extending upward. The material plate (3) is slidably matched with the supporting plate (11); the blanking plate (3) is provided with a discharge hole (31) which can correspond to the blanking hole (13) up and down; the outer periphery of the blanking plate (3) is connected with a rotating handle (32) which is arranged through the peripheral wall of the storage tank (1); the rotating handle (32) is slidably connected to the storage tank (1) along the circumference of the storage tank (1); the rotating handle (32) is used to drive the blanking plate (3) to rotate so that the discharge hole (31) corresponds to the blanking hole (13) up and down.

2. The device for preparing an alkali metal salt electrolyte according to claim 1, characterized in that The support plate (11) and the blanking plate (3) are respectively cone bucket structures with openings facing upwards; the discharge hole (31) is arranged on the peripheral wall of the blanking plate (3); the blanking hole (13) is arranged on the peripheral wall of the support plate (11); and the diameter of the discharge hole (31) is greater than the diameter of the blanking hole (13).

3. The device for preparing an alkali metal salt electrolyte according to claim 2, characterized in that: A fixing ring (14) is provided on the inner wall of the material storage tank (1) for supporting the lower part of the outer periphery of the blanking plate (3), and the top surface of the fixing ring (14) is slidably matched with the top surface of the blanking plate (3).

4. The device for preparing an alkali metal salt electrolyte according to claim 3, characterized in that A material distribution cone hopper (33) with an opening facing downward is connected below the material drop plate (3). The material distribution cone hopper (33) is connected to the center of the material drop plate (3) via a connecting rod. The material distribution cone hopper (33) is used to receive the material in the discharge hole (31) and disperse the material into the mixing drum (2).

5. The device for preparing an alkali metal salt electrolyte according to claim 1, characterized in that: A middle column (15) is provided in the middle of the material storage tank (1), which is connected to the top of the supporting plate (11) and extends upward along the main axis of the material storage tank (1); one side edge of the partition plate (12) is connected to the outer peripheral wall of the middle column (15), and the other side edge is connected to the inner peripheral wall of the material storage tank (1).

6. The device for preparing an alkali metal salt electrolyte according to claim 1, characterized in that: The outer side of the storage tank (1) is also provided with two winches (16) symmetrically arranged on both sides of the rotating push handle (32), and the two winches (16) are respectively connected to the rotating push handle (32) through a pull rope (17), and the winches (16) are used to drive the rotating push handle (32) and the blanking plate (3) to rotate circumferentially.

7. The device for preparing an alkali metal salt electrolyte according to any one of claims 1 to 6, characterized in that: The mixing drum (2) has an outer convex portion (21) protruding outward from the material storage tank (1), a liquid inlet pipe (22) is provided at the top of the outer convex portion (21), and a material outlet pipe (23) is provided at the bottom of the mixing drum (2).

8. The device for preparing an alkali metal salt electrolyte according to any one of claims 1 to 6, characterized in that: A stirring assembly (4) having a main shaft extending in a horizontal direction is arranged in the stirring drum (2), and the stirring assembly (4) comprises a stirring shaft (41) arranged to pass through the side wall of the stirring drum (2), a rotating driving member (42) connected to the outer end of the stirring shaft (41), and a stirring blade (43) connected to the outer periphery of the stirring shaft (41), and a connecting hole (44) is arranged to pass through the stirring blade (43).

9. The apparatus for preparing an alkali metal salt electrolyte according to claim 8, characterized in that The outer end of the stirring blade (43) away from the stirring shaft (41) gradually extends obliquely toward the side close to the rotating driving member (42), and a plurality of communicating holes (44) are arranged at intervals along the extending direction of the stirring blade (43).

10. The apparatus for preparing an alkali metal salt electrolyte according to claim 9, characterized in that The stirring blade (43) is also provided with an axially extending disturbance rod (45), the disturbance rod (45) being located on a side of the stirring blade (43) away from the rotary drive member (42), and a plurality of the disturbance rods (45) are connected to the same stirring blade (43).

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