Quantitative batching device for electrolyte production

Abstract

The utility model discloses a quantitative batching device for electrolyte production, which relates to the technical field of quantitative batching devices and comprises a batching component, a stirring component and a quantitative feeding component, and the quantitative feeding component comprises a conveying unit and a powder mixing unit. The quantitative feeding assembly is arranged, the conveying motor drives the first spiral feeding shaft and the second spiral feeding shaft to rotate synchronously, and the first spiral feeding shaft can drive powder raw materials in the powder feeding box to be downwards conveyed into the stirring tank; and the second spiral feeding shaft can drive the liquid raw material in the stirring tank to be conveyed upwards along the inner wall of the conveying cylinder, so that the liquid raw material and the powder raw material impact each other, the primary mixing of the liquid raw material and the powder raw material is realized, meanwhile, the caking phenomenon of the powder raw material can be avoided, and the overall batching efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative batching devices, and specifically relates to a quantitative batching device for electrolyte production. Background Technique

[0002] Sodium electrolyte is one of the four key materials of sodium-ion batteries and is known as the "blood" of sodium-ion batteries. Its function is to conduct electrons between the positive and negative electrodes of the battery, and it is also an important guarantee for sodium-ion batteries to obtain advantages such as high voltage and high specific energy.

[0003] The electrolyte mainly consists of three parts:

[0004] (1) Solvents: cyclic carbonates (PC, EC); linear carbonates (DEC, DMC, EMC); carboxylic acid esters (MF, MA, EA, MA, MP, etc.); (used to dissolve sodium salts);

[0005] (2) Sodium salts: NaPF6, NaClO4, NaBF4, NaAsF6, etc.;

[0006] (3) Additives: film-forming additives, conductive additives, flame-retardant additives, overcharge protection additives, additives for controlling the content of H2O and HF in the electrolyte, additives for improving low-temperature performance, multi-functional additives;

[0007] During the production process of the electrolyte, it is necessary to mix the electrolyte raw materials in a specific proportion. The weighing batching and stirring tank is one of the commonly used equipment for electrolyte quantitative batching. The weighing batching and stirring tank is a stirring tank with a weighing function and is usually used for the batching and mixing processes in industries such as chemical engineering and food. This equipment usually has an automatic metering and weighing feed inlet, which can accurately measure and control the weight of the materials entering the stirring tank, thereby achieving accurate batching and mixing.

[0008] When mixing the electrolyte raw materials through the weighing batching and stirring tank, due to the presence of powder materials in the raw materials, when the powder raw materials are added into the interior of the stirring tank, it is easy for the powder raw materials to float on the liquid surface and form agglomeration phenomena, and then the mixing efficiency is affected. Based on this, a quantitative batching device for electrolyte production is provided. Content of the Utility Model

[0009] The purpose of the utility model is to provide a quantitative batching device for electrolyte production in order to solve the problems in the above background.

[0010] To achieve the above object, the present utility model provides the following technical solutions: A quantitative batching device for electrolyte production, including a batching component composed of a stirring tank, a fixed seat, a weighing module, and a support frame, and a stirring component. A plurality of fixed seats are provided and circumferentially fixed on the outer side of the stirring tank. The weighing module is installed at the bottom end of the fixed seat and fixed on the top of the support frame. The fixed seat is installed inside the support frame through a plurality of fixed seats and the weighing module. A quantitative feeding component extending into the interior of the stirring tank is provided at the top of the stirring tank. The quantitative feeding component includes a feeding unit and a powder mixing unit;

[0011] The feeding unit is used to achieve the quantitative addition of electrolyte raw materials;

[0012] The powder mixing unit is used to achieve the full mixing of powder raw materials and liquid raw materials;

[0013] The feeding unit includes a liquid feeding tank, a powder feeding tank, a conveying pipe, a conveying motor, a first spiral feeding shaft, and a blanking cylinder;

[0014] The liquid feeding tank and the powder feeding tank are symmetrically fixed on both sides of the top of the stirring tank and communicated with the inner cavity of the stirring tank. The powder feeding tank is fixed outside the liquid feeding tank and the powder feeding tank and communicated with the inner cavities of the liquid feeding tank and the powder feeding tank. The powder feeding tank is communicated with an external feeding device;

[0015] The blanking cylinder is fixed on the top inner wall of the stirring tank and aligned with the bottom opening of the powder feeding tank;

[0016] The conveying motor is fixedly installed on the top of the powder feeding tank. The output end of the conveying motor penetrates into the interior of the powder feeding tank and is fixedly connected to the first spiral feeding shaft. The first spiral feeding shaft extends through to the lower part of the blanking cylinder.

[0017] As a further scheme of the present utility model: The powder mixing unit includes a second spiral feeding shaft, a conveying cylinder, a conical guide plate, and a 7-shaped connecting arm;

[0018] The conveying cylinders are distributed below the blanking cylinder. The conical guide plate is fixed on the outer side of the top of the conveying cylinder. The 7-shaped connecting arm is fixed on the outer bottom of the blanking cylinder, and the bottom end of the 7-shaped connecting arm is fixedly connected to the outer edge of the conical guide plate;

[0019] The second spiral feeding shaft is fixed at the bottom end of the first spiral feeding shaft and penetrates through the conveying cylinder to the bottom end of the conveying cylinder.

[0020] As a further scheme of the present utility model: The spiral directions of the spiral blades on the outer sides of the first spiral feeding shaft and the second spiral feeding shaft are in opposite states.

[0021] As a further solution of the present utility model: the top of the conveying cylinder is located above the liquid level inside the stirring tank, the outer diameter of the conveying cylinder is smaller than the inner diameter of the blanking cylinder, and the outer diameters of the spiral blades of the first spiral feeding shaft and the second spiral feeding shaft respectively match the inner diameters of the blanking cylinder and the conveying cylinder.

[0022] As a further solution of the present utility model: a plurality of the "7"-shaped connecting arms are provided, and the plurality of the "7"-shaped connecting arms are evenly distributed in a ring shape.

[0023] As a further solution of the present utility model: the stirring assembly includes a stirring motor, a stirring shaft, and stirring rods;

[0024] The stirring motor is fixed at the center position on the top of the stirring tank, the stirring shaft is fixed at the output end of the stirring motor and extends to the inside of the stirring tank, a plurality of the stirring rods are provided, and the plurality of the stirring rods are evenly distributed in a circumferential manner and fixed on the outside of the stirring shaft.

[0025] Compared with the prior art, the beneficial effects of the present utility model are:

[0026] By providing a quantitative feeding assembly, the first spiral feeding shaft and the second spiral feeding shaft are driven to rotate synchronously by the conveying motor. The first spiral feeding shaft can drive the powder raw materials inside the powder feeding box to be conveyed downward into the stirring tank, while the second spiral feeding shaft can drive the liquid raw materials inside the stirring tank to be conveyed upward along the inner wall of the conveying cylinder, so that the liquid raw materials and the powder raw materials impact each other. In this way, not only the preliminary mixing of the liquid raw materials and the powder raw materials is realized, but also the phenomenon of powder raw materials agglomerating can be avoided, and the overall batching efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the present utility model;

[0028] Figure 2 is a sectional view of the stirring tank of the present utility model;

[0029] Figure 3 is a sectional structural view of the blanking cylinder and the conveying cylinder of the present utility model.

[0030] In the figure: 1, batching assembly; 101, stirring tank; 102, fixed seat; 103, weighing module; 104, support frame; 2, stirring assembly; 201, stirring motor; 202, stirring shaft; 203, stirring rod; 3, quantitative feeding assembly; 301, liquid feeding box; 302, powder feeding box; 303, conveying pipe; 304, conveying motor; 305, first spiral feeding shaft; 306, second spiral feeding shaft; 307, blanking cylinder; 308, conveying cylinder; 309, conical guide plate; 310, "7"-shaped connecting arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1 to 3 , in the embodiments of the present utility model, a quantitative batching device for electrolyte production includes a batching assembly 1 composed of a mixing tank 101, a fixed seat 102, a weighing module 103, and a support frame 104, and a mixing assembly 2. A plurality of fixed seats 102 are provided and are circumferentially fixed on the outer side of the mixing tank 101. The weighing module 103 is installed at the bottom end of the fixed seat 102 and fixed on the top of the support frame 104. The fixed seat 102 is installed on the inner side of the support frame 104 through a plurality of fixed seats 102 and the weighing module 103. A quantitative feeding assembly 3 extending into the interior of the mixing tank 101 is provided at the top of the mixing tank 101. The quantitative feeding assembly 3 includes a feeding unit and a powder mixing unit;

[0033] The feeding unit is used to achieve the quantitative addition of electrolyte raw materials;

[0034] The powder mixing unit is used to achieve the full mixing of powder raw materials and liquid raw materials;

[0035] The feeding unit includes a liquid feeding tank 301, a powder feeding tank 302, a conveying pipe 303, a conveying motor 304, a first spiral feeding shaft 305, and a blanking cylinder 307;

[0036] The liquid feeding tank 301 and the powder feeding tank 302 are symmetrically fixed on both sides of the top of the mixing tank 101 and are communicated with the inner cavity of the mixing tank 101. The powder feeding tank 302 is fixed on the outer side of the liquid feeding tank 301 and the powder feeding tank 302 and is communicated with the inner cavities of the liquid feeding tank 301 and the powder feeding tank 302. The powder feeding tank 302 is communicated with an external feeding device;

[0037] The blanking cylinder 307 is fixed on the top of the inner wall of the mixing tank 101 and is aligned with the bottom opening of the powder feeding tank 302;

[0038] The conveying motor 304 is fixedly installed on the top of the powder feeding tank 302. The output end of the conveying motor 304 penetrates into the interior of the powder feeding tank 302 and is fixedly connected to the first spiral feeding shaft 305. The first spiral feeding shaft 305 extends through to the lower part of the blanking cylinder 307;

[0039] The powder mixing unit includes a second spiral feeding shaft 306, a conveying cylinder 308, a conical guide plate 309, and a 7-shaped connecting arm 310;

[0040] The conveying cylinder 308 is distributed below the blanking cylinder 307. The conical guide plate 309 is fixed to the outer side of the top of the conveying cylinder 308. The 7-shaped connecting arm 310 is fixed to the outer bottom of the blanking cylinder 307, and the bottom end of the 7-shaped connecting arm 310 is fixedly connected to the outer edge of the conical guide plate 309.

[0041] The second spiral feeding shaft 306 is fixed to the bottom end of the first spiral feeding shaft 305 and penetrates through the conveying cylinder 308 to the bottom end of the conveying cylinder 308. The spiral directions of the spiral blades on the outer sides of the first spiral feeding shaft 305 and the second spiral feeding shaft 306 are opposite.

[0042] The stirring assembly 2 includes a stirring motor 201, a stirring shaft 202, and stirring rods 203.

[0043] The stirring motor 201 is fixed at the center position of the top of the stirring tank 101. The stirring shaft 202 is fixed to the output end of the stirring motor 201 and extends to the inside of the stirring tank 101. A plurality of stirring rods 203 are provided, and the plurality of stirring rods 203 are evenly distributed in a circle and fixed to the outer side of the stirring shaft 202.

[0044] In this embodiment, it should be noted that: The liquid material feeding box 301 and the powder material feeding box 302 are provided with a corresponding number of conveying pipes 303 according to the quantity of the raw materials. The feeding devices and the weighing module 103 connected to the conveying pipes 303 are electrically connected to an external controller through wires. The overall weight of the stirring tank 101 can be monitored through the weighing module 103. When the external feeding device feeds materials into the liquid material feeding box 301 or the powder material feeding box 302 through the conveying pipe 303, the added amount of the raw materials can be judged by the change in the overall weight of the stirring tank 101. When the added amount of this raw material is reached, the external controller controls the external feeding device to stop operating, thereby realizing the quantitative addition of the raw materials.

[0045] During the feeding process, among them, the liquid raw materials can enter the inside of the stirring tank 101, while the powder raw materials need to be fed through the cooperation of the conveying motor 304. The operation steps are as follows:

[0046] During the process of conveying the powder raw materials into the powder material feeding box 302, the conveying motor 304 is started synchronously. The conveying motor 304 drives the first spiral feeding shaft 305 and the second spiral feeding shaft 306 to rotate synchronously. Among them, the first spiral feeding shaft 305 can drive the powder raw materials inside the powder material feeding box 302 to be conveyed downward into the inside of the stirring tank 101, while the second spiral feeding shaft 306 can drive the liquid raw materials inside the stirring tank 101 to be conveyed upward along the inner wall of the conveying cylinder 308.

[0047] The powder raw materials transported downward fall onto the surface of the conical guide plate 309. At this time, the liquid raw materials driven to be transported upward flow synchronously to the surface of the conical guide plate 309, realizing the scouring of the powder raw materials. In this way, not only the preliminary mixing of the liquid raw materials and the powder raw materials is realized, but also the phenomenon of the powder raw materials agglomerating can be avoided, further improving the overall batching efficiency;

[0048] It should be noted that during the process of adding raw materials, the stirring motor 201 starts synchronously. The stirring motor 201 drives the stirring rod 203 to rotate through the stirring shaft 202 to realize the full mixing of the raw materials. It should be noted that the rotation of the stirring rod 203 will not interfere with the conveying cylinder 308, the conical guide plate 309, and the 7-shaped connecting arm 310.

[0049] Please refer specifically to Figures 2 to 3 , the top of the conveying cylinder 308 is located above the liquid level inside the stirring tank 101. The outer diameter of the conveying cylinder 308 is smaller than the inner diameter of the feeding cylinder 307. The outer diameters of the spiral blades of the first spiral feeding shaft 305 and the second spiral feeding shaft 306 match the inner diameters of the feeding cylinder 307 and the conveying cylinder 308 respectively.

[0050] In this embodiment: through this structure, the powder raw materials falling from the feeding cylinder 307 can be dispersed and fall onto the surface of the conical guide plate 309, facilitating the preliminary mixing of the liquid raw materials and the powder raw materials.

[0051] Please refer specifically to Figures 2 to 3 , there are multiple 7-shaped connecting arms 310, and the multiple 7-shaped connecting arms 310 are evenly distributed in a ring shape.

[0052] In this embodiment: through this structure, the connection between the conveying cylinder 308 and the feeding cylinder 307 can be ensured to be stable.

[0053] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A quantitative batching device for electrolyte production, comprising a batching component (1) and a stirring component (2) composed of a stirring tank (101), a fixed seat (102), a weighing module (103), and a support frame (104), wherein the fixed seat (102) is provided with a plurality of weighing modules (103) and is circumferentially fixed to the outside of the stirring tank (101), the weighing module (103) is installed at the bottom end of the fixed seat (102) and fixed to the top of the support frame (104), and the fixed seat (102) is installed on the inner side of the support frame (104) through the plurality of fixed seats (102) and the weighing module (103), characterized in that: The top of the stirring tank (101) is provided with a quantitative feeding component (3) extending into the interior of the stirring tank (101), and the quantitative feeding component (3) comprises a feeding unit and a powder mixing unit; The feeding unit is used to achieve quantitative addition of electrolyte raw materials; The powder mixing unit is used to achieve full mixing of the powder raw material and the liquid raw material; The feeding unit comprises a liquid feeding box (301), a powder feeding box (302), a conveying pipe (303), a conveying motor (304), a first spiral feeding shaft (305), and a feeding cylinder (307); The liquid feed box (301) and the powder feed box (302) are symmetrically fixed on both sides of the top of the stirring tank (101) and are in communication with the inner cavity of the stirring tank (101); the powder feed box (302) is fixed on the outside of the liquid feed box (301) and the powder feed box (302) and is in communication with the inner cavities of the liquid feed box (301) and the powder feed box (302); the powder feed box (302) is in communication with an external feeding device; The lower barrel (307) is fixed to the top of the inner wall of the mixing tank (101) and is aligned with the bottom opening of the powder feed box (302); The conveying motor (304) is fixedly mounted on the top of the powder feed box (302), and the output end of the conveying motor (304) passes through the inside of the powder feed box (302) and is fixedly connected to the first spiral feeding shaft (305), and the first spiral feeding shaft (305) extends through the bottom of the lower barrel (307).

2. A quantitative dosing device for electrolyte production according to claim 1, characterized in that: The powder mixing unit comprises a second spiral feeding shaft (306), a conveying cylinder (308), a conical guide plate (309), and a 7-shaped connecting arm (310); The conveying cylinder (308) is arranged below the lower material cylinder (307), the conical guide plate (309) is fixed to the outer side of the top of the conveying cylinder (308), the 7-shaped connecting arm (310) is fixed to the outer bottom of the lower material cylinder (307), and the bottom end of the 7-shaped connecting arm (310) is fixedly connected to the outer edge of the conical guide plate (309); The second spiral feeding shaft (306) is fixed to the bottom end of the first spiral feeding shaft (305) and passes through the conveying cylinder (308) to the bottom end of the conveying cylinder (308).

3. A quantitative dosing device for electrolyte production according to claim 2, characterized in that: The spiral directions of the spiral blades on the outer sides of the first spiral feeding shaft (305) and the second spiral feeding shaft (306) are in opposite directions.

4. A quantitative dosing device for electrolyte production according to claim 2, characterized in that: The top of the conveying cylinder (308) is located above the liquid level inside the stirring tank (101), the outer diameter of the conveying cylinder (308) is smaller than the inner diameter of the lower barrel (307), and the outer diameters of the spiral blades of the first spiral feeding shaft (305) and the second spiral feeding shaft (306) match the inner diameters of the lower barrel (307) and the conveying cylinder (308), respectively.

5. The quantitative batching device for electrolyte production according to claim 2, characterized in that: A plurality of the 7-shaped connecting arms (310) are provided, and the plurality of the 7-shaped connecting arms (310) are evenly distributed in a ring shape.

6. The quantitative batching device for electrolyte production according to claim 1, characterized in that: The stirring assembly (2) comprises a stirring motor (201), a stirring shaft (202), and a stirring rod (203); The stirring motor (201) is fixed at the top center position of the stirring tank (101), the stirring shaft (202) is fixed to the output end of the stirring motor (201) and extends to the inside of the stirring tank (101), and a plurality of stirring rods (203) are provided, and the plurality of stirring rods (203) are evenly distributed in a circle and fixed to the outside of the stirring shaft (202).

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