Continuous mixing device for lithium battery electrolyte

Abstract

The utility model relates to a continuous mixing device of a lithium battery electrolyte, and belongs to the technical field of lithium battery electrolytes.The mixing device comprises a stirring shell, a stirring structure is arranged in the stirring shell, and the stirring shell is used for stirring the mixed electrolyte; the multiple groups of coil pipes are wound on the outer wall of the stirring shell; the temperature sensor is mounted on the outer wall of the stirring shell; the liquid supply circulating assembly communicates with the two ends of the coil pipe and is used for supplying cooling liquid into the coil pipe; and the controller is in communication connection with the coil pipes and the liquid supply circulating assembly so as to control cooling liquid to enter different numbers of coil pipes when the temperature value detected by the temperature sensor is larger than a preset threshold value. The electrolyte stirring device has the beneficial effect of timely and effectively performing temperature control on electrolyte stirring.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery electrolyte, and in particular to a continuous mixing device for lithium battery electrolyte. Background Art

[0002] Electrolyte is the conductive medium in the battery, which is composed of solvent, lithium salt and additives. The precise ratio and uniform mixing of additives are crucial to the quality of the electrolyte. High-quality electrolyte production line mixers can achieve efficient mixing, ensure the full integration of additives with solvents and lithium salts, and ensure the uniformity and stability of the electrolyte. Electrolyte production line mixers usually adopt high-speed rotary stirring or planetary stirring structures. During the stirring process, the high-speed rotation or planetary motion of the agitator generates strong cutting and extrusion forces, which quickly mix the solvent, lithium salt and additives.

[0003] In the related art, mixing and stirring of electrolytes will cause the release of heat such as frictional heat, resulting in an increase in the temperature of the electrolyte. Too high a temperature can easily lead to a decrease in electrolyte performance or create a safety hazard. Utility Model Content

[0004] In order to control the temperature of the electrolyte stirring, the present application provides a continuous mixing device for lithium battery electrolyte, which adopts the following technical solution:

[0005] A continuous mixing device for lithium battery electrolyte, comprising:

[0006] A stirring shell, which has a stirring structure therein and is used to stir the mixed electrolyte;

[0007] The coils are provided in multiple groups and are all wound around the outer wall of the mixing shell;

[0008] A temperature sensor is installed on the outer wall of the stirring shell;

[0009] A liquid supply circulation component, connected to both ends of the coil, for supplying cooling liquid into the coil;

[0010] The controller is respectively connected to the coils and the liquid supply circulation assembly for controlling the coolant to enter different numbers of coils when the temperature value detected by the temperature sensor is greater than a preset threshold.

[0011] By adopting the above technical solution, when the temperature sensor detects that the temperature value is greater than the threshold, the controller controls the liquid supply circulation component to provide cooling liquid to the coil. The greater the difference between the temperature value and the threshold, the more groups of coils are opened, thereby enabling timely and effective temperature control of electrolyte stirring.

[0012] Optionally, the liquid supply circulation component includes:

[0013] Liquid supply circulation box, storing coolant;

[0014] A liquid supply pump, the liquid inlet of which is connected to the liquid supply circulation box;

[0015] A liquid supply main pipe, one end of which is connected to the liquid outlet of the liquid supply pump, and the other end of which is connected to a group of the coils;

[0016] A liquid supply solenoid valve connected between adjacent coils;

[0017] A liquid supply circulation pipe, one end of which is connected to the liquid supply circulation box, and the other end of which is connected to the plurality of coils;

[0018] The liquid supply solenoid valve and the liquid supply pump are both in communication connection with the controller.

[0019] Optionally, the mixing device further comprises:

[0020] A cleaning pipe is connected to the liquid supply circulation pipe,

[0021] A cleaning solenoid valve connected to the cleaning pipe;

[0022] A cleaning water pump, the liquid inlet of which is connected to the cleaning pipe;

[0023] A spray pipe connected to the liquid outlet of the cleaning water pump;

[0024] A rotating spray head is connected to the spray pipe and installed on the top of the stirring shell to spray the inside of the stirring shell;

[0025] The cleaning solenoid valve and the cleaning water pump are both in communication connection with the controller.

[0026] Optionally, the mixing device further comprises:

[0027] A recovery pipe, one end of which is connected to the bottom end of the stirring shell;

[0028] A recovery water pump, wherein the liquid inlet is connected to the recovery pipe, the liquid outlet is connected to a recovery liquid inlet pipe, the recovery liquid inlet pipe is connected to the liquid supply circulation pipe; the recovery liquid inlet pipe is connected to a recovery solenoid valve;

[0029] An opening and closing component, installed on the recovery pipe, used for opening and closing the recovery pipe;

[0030] A filter component is installed in the recovery pipe and is used to recover the cleaning water in the stirring shell.

[0031] By adopting the above technical solution, water resources can be recycled and reused, reducing resource waste.

[0032] Optionally, the opening and closing component includes:

[0033] A leakage pipe is coaxially fixedly connected to the recovery pipe; the leakage pipe is provided with a leakage hole;

[0034] The opening and closing plug is coaxially slidably connected in the leakage pipe;

[0035] The opening and closing cylinder is installed in the leakage pipe, and the piston rod is fixedly connected to the opening and closing plug.

[0036] Optionally, the filtering component includes:

[0037] A filter plate is hinged in the recovery pipe, and the recovery pipe is provided with a slag removal hole;

[0038] A slag baffle is slidably connected to the outer wall of the recovery pipe and is used for opening and closing the slag removal hole.

[0039] By adopting the above technical solution, the filter plate can be cleaned regularly to avoid clogging of the filter.

[0040] Optionally, the filtering component further includes:

[0041] A rotating gear is coaxially fixedly connected to the hinge shaft of the filter plate;

[0042] A rotating motor is installed on the outer wall of the recovery pipe, and an output shaft is coaxially fixedly connected with a rotating slave gear, and the rotating slave gear is meshed with the rotating gear;

[0043] An auxiliary gear meshing with the rotating gear and rotatably connected to the outer wall of the recovery pipe;

[0044] An auxiliary rack is meshed with the auxiliary gear and fixedly connected to the slag baffle.

[0045] By adopting the above technical solution, when the rotating motor drives the hinged shaft to rotate and the filter plate moves from horizontal to vertical, the rotating gear drives the auxiliary gear to rotate, and the auxiliary gear drives the auxiliary rack to move, thereby driving the slag stop plate to move, and the slag stop plate opens the slag removal hole.

[0046] In summary, the present application has at least the following beneficial effects:

[0047] 1. The purpose of setting up multiple groups of coils, temperature sensors, controllers and liquid supply circulation components is that when the temperature sensor detects that the temperature value is greater than the threshold, the controller controls the liquid supply circulation component to provide cooling liquid to the coil. The greater the difference between the temperature value and the threshold, the more groups of coils are opened, so that the temperature of the electrolyte stirring can be controlled in a timely and effective manner.

[0048] 2. The purpose of setting the cleaning pipe, spray pipe and rotating nozzle is to use the coolant in the coil to clean the inside of the mixing shell.

[0049] 3. The purpose of setting up recovery pipes and filter components is to achieve the recycling of water resources and reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the overall structure from the perspective of the first embodiment of the present application;

[0051] Figure 2 It is a schematic diagram of the overall structure of another perspective of the embodiment of the present application;

[0052] Figure 3 yes Figure 2 A magnified schematic diagram of the structure of part A;

[0053] Figure 4 is a cross-sectional view of the recovery pipe;

[0054] Figure 5 It is a control structure block diagram of an embodiment of the present application.

[0055] Description of reference numerals: 100, stirring shell; 200, coil; 300, liquid supply circulation assembly; 310, liquid supply circulation box; 320, liquid supply pump; 330, liquid supply main pipe; 340, liquid supply solenoid valve; 350, liquid supply circulation pipe; 400, cleaning pipe; 410, cleaning solenoid valve; 420, cleaning water pump; 430, spray pipe; 440, rotating nozzle; 500, recovery pipe; 510, opening and closing component; 511, leakage pipe; 512, opening and closing plug; 513, opening and closing cylinder; 514, leakage hole; 520, filter component; 521, filter plate; 522, slag retaining plate; 523, rotating gear; 524, rotating motor; 525, auxiliary gear; 526, auxiliary rack; 527, slag removal hole; 528, rotating slave gear; 530, recovery water pump; 540, recovery liquid inlet pipe; 550, recovery solenoid valve; 600, temperature sensor; 700, controller. DETAILED DESCRIPTION

[0056] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1 -Attached Figure 5 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The present application embodiment discloses a continuous mixing device for lithium battery electrolyte. Figure 1As an embodiment of the mixing device, the mixing device may include a stirring shell 100, a coil 200 and a liquid supply circulation assembly 300. Among them, a stirring structure is provided in the stirring shell 100 to stir the mixed electrolyte, and the stirring structure is a conventional stirring structure. The coil 200 may be provided in multiple groups, and the multiple groups of coils 200 are wound around the outer wall of the stirring shell 100. The liquid supply circulation assembly 300 is connected to both ends of the multiple groups of coils 200, and is used to provide cooling liquid into the coils 200.

[0058] The liquid supply circulation assembly 300 may include a liquid supply circulation box 310, a liquid supply pump 320, a liquid supply main pipe 330, a liquid supply solenoid valve 340 and a liquid supply circulation pipe 350. Among them, the liquid supply circulation box 310 stores cooling liquid, and a common cooling structure can be built into the liquid supply circulation box 310 to cool the cooling liquid. The liquid inlet of the liquid supply pump 320 is connected to the liquid supply circulation box 310, and the liquid outlet is connected to the liquid supply main pipe 330; the liquid supply main pipe 330 is connected to a group of coils 200. The liquid supply solenoid valve 340 is connected between adjacent groups of coils 200. One end of the liquid supply circulation pipe 350 is connected to the liquid supply circulation box 310, and the other end is connected to multiple groups of coils 200.

[0059] As another embodiment of the mixing device, the mixing device may further include a cleaning pipe 400, a cleaning solenoid valve 410, a cleaning water pump 420, a spray pipe 430 and a rotating spray head 440. One end of the cleaning pipe 400 is connected to the liquid supply circulation pipe 350, and the other end is connected to the liquid inlet of the cleaning water pump 420; the cleaning solenoid valve 410 is connected to the cleaning pipe 400. One end of the spray pipe 430 is connected to the liquid outlet of the cleaning water pump 420, and the rotating spray head 440 is connected to the other end of the spray pipe 430, and is installed on the top of the mixing shell 100, for spraying the inside of the mixing shell 100.

[0060] Reference Figure 1 and Figure 2 The mixing device may further include a recovery pipe 500, an opening and closing component 510 and a filtering component 520; one end of the recovery pipe 500 is connected to the stirring shell 100, and the other end is connected to a recovery water pump 530, the liquid outlet of the recovery water pump 530 is connected to a recovery liquid inlet pipe 540, and the recovery liquid inlet pipe 540 is connected to the liquid supply circulation pipe 350; the recovery liquid inlet pipe 540 is connected to a recovery solenoid valve 550. The opening and closing component 510 is installed on the recovery pipe 500, and is used to open and close the recovery pipe 500, and the filtering component 520 is installed in the recovery pipe 500, and is used to recover the washing water in the stirring shell 100.

[0061] Reference Figure 3 and Figure 4, the opening and closing component 510 may include a leakage pipe 511, an opening and closing plug 512 and an opening and closing cylinder 513. The leakage pipe 511 is coaxially fixedly connected to the recovery pipe 500, and the leakage pipe 511 is provided with a leakage hole 514. The opening and closing plug 512 is coaxially slidably connected to the leakage pipe 511, the opening and closing cylinder 513 is installed in the leakage pipe 511, and the piston rod is fixedly connected to the opening and closing plug 512. When the opening and closing cylinder 513 is extended, the opening and closing plug 512 is driven to move to close the leakage hole 514. The opening and closing cylinder 513 can be powered by an air pump.

[0062] When the interior of the stirring shell 100 is cleaned, the opening and closing cylinder 513 contracts, the opening and closing plug 512 opens the leakage hole 514 , and the cleaning water enters the recovery pipe 500 from the leakage hole 514 .

[0063] The filter component 520 may include a filter plate 521, a slag blocking plate 522, a rotating gear 523, a rotating motor 524, an auxiliary gear 525 and an auxiliary rack 526. The filter plate 521 is hinged in the recovery pipe 500, and the recovery pipe 500 is provided with a slag removal hole 527. The slag blocking plate 522 is slidably connected to the outer wall of the recovery pipe 500, and is used to open and close the slag removal hole 527. The rotating gear 523 is coaxially fixedly connected to the hinge shaft of the filter plate 521, and the rotating motor 524 is installed on the outer wall of the recovery pipe 500 by bolts, and the output shaft is coaxially fixedly connected with a rotating slave gear 528, and the rotating slave gear 528 is meshed with the rotating gear 523.

[0064] The auxiliary gear 525 is meshed with the rotating gear 523 and is rotatably connected to the outer wall of the recovery pipe 500 ; the auxiliary rack 526 is meshed with the auxiliary gear 525 and is fixedly connected to the slag baffle 522 .

[0065] The cleaning water is filtered through the filter plate 521, and the filter residue remains on the filter plate 521. When the filter plate 521 is removing the residue, the rotating motor 524 drives the hinge shaft to rotate, and the filter plate 521 rotates from horizontal to vertical. At this time, the rotating gear 523 drives the auxiliary gear 525 to rotate, and the auxiliary gear 525 drives the auxiliary rack 526 to move, and the auxiliary rack 526 drives the movement of the residue blocking plate 522, so that the residue blocking plate 522 opens the residue removal hole 527.

[0066] Reference Figure 5As another embodiment of the mixing device, the mixing device may further include a temperature sensor 600 and a controller 700. The temperature sensor 600 is mounted on the outer wall of the stirring shell 100, and the controller 700 is connected to the temperature sensor 600, the liquid supply pump 320, the liquid supply solenoid valve 340, the cleaning solenoid valve 410, the cleaning water pump 420, the recovery water pump 530, the recovery solenoid valve 550, the opening and closing cylinder 513, and the rotating motor 524. After the temperature sensor 600 detects that the temperature value is greater than the preset temperature threshold, the controller 700 controls the liquid supply solenoid valve 340 and the liquid supply pump 320 to start; according to the difference between the temperature value and the temperature threshold, different numbers of liquid supply solenoid valves 340 are controlled to open, and the larger the difference, the more liquid supply solenoid valves 340 are opened.

[0067] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application in sequence. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A continuous mixing device for lithium battery electrolyte, characterized in that: include: A stirring shell (100) having a stirring structure therein for stirring the mixed electrolyte; The coils (200) are provided in multiple groups and are all wound around the outer wall of the stirring shell (100); A temperature sensor (600) is mounted on the outer wall of the stirring shell (100); A liquid supply circulation component (300) is in communication with both ends of the coil (200) and is used to increase cooling liquid into the coil (200); The controller (700) is respectively connected to the coils (200) and the liquid supply circulation assembly (300) for controlling the cooling liquid to enter different numbers of coils (200) when the temperature value detected by the temperature sensor (600) is greater than a preset threshold value.

2. A continuous mixing device for lithium battery electrolyte according to claim 1, characterized in that: The liquid supply circulation component (300) comprises: A liquid supply circulation box (310) storing cooling liquid; A liquid supply pump (320), the liquid inlet of which is in communication with the liquid supply circulation box (310); A liquid supply main pipe (330), one end of which is in communication with the liquid outlet of the liquid supply pump (320), and the other end of which is in communication with a group of the coils (200); A liquid supply solenoid valve (340) connected between adjacent coils (200); A liquid supply circulation pipe (350), one end of which is in communication with the liquid supply circulation box (310), and the other end of which is in communication with the plurality of groups of coils (200); The liquid supply solenoid valve (340) and the liquid supply pump (320) are both communicatively connected to the controller (700).

3. A continuous mixing device for lithium battery electrolyte according to claim 2, characterized in that: The mixing device also includes: The cleaning pipe (400) is connected to the liquid supply circulation pipe (350). A cleaning solenoid valve (410) connected to the cleaning pipe (400); A cleaning water pump (420), the liquid inlet of which is in communication with the cleaning pipe (400); A spray pipe (430) connected to a liquid outlet of the cleaning water pump (420); A rotating spray head (440) is connected to the spray pipe (430) and is installed on the top of the stirring shell (100) to spray the interior of the stirring shell (100); The cleaning solenoid valve (410) and the cleaning water pump (420) are both communicatively connected to the controller (700).

4. A continuous mixing device for lithium battery electrolyte according to claim 3, characterized in that: The mixing device also includes: A recovery pipe (500), one end of which is connected to the bottom end of the stirring shell (100); A recovery water pump (530), wherein the liquid inlet is connected to the recovery pipe (500), the liquid outlet is connected to a recovery liquid inlet pipe (540), the recovery liquid inlet pipe (540) is connected to the liquid supply circulation pipe (350); the recovery liquid inlet pipe (540) is connected to a recovery solenoid valve (550); An opening and closing component (510) is installed on the recovery pipe (500) and is used to open and close the recovery pipe (500); A filter component (520) is installed in the recovery pipe (500) and is used to recover the washing water in the stirring shell (100).

5. A continuous mixing device for lithium battery electrolyte according to claim 4, characterized in that: The opening and closing component (510) comprises: A liquid leakage pipe (511) is coaxially fixedly connected to the recovery pipe (500); the liquid leakage pipe (511) is provided with a liquid leakage hole (514); An opening and closing plug (512) is coaxially slidably connected in the leakage pipe (511); The opening and closing cylinder (513) is installed in the liquid leakage pipe (511), and the piston rod is fixedly connected to the opening and closing plug (512).

6. A continuous mixing device for lithium battery electrolyte according to claim 4, characterized in that: The filtering component (520) comprises: A filter plate (521) is hingedly connected in the recovery pipe (500); the recovery pipe (500) is provided with a slag removal hole (527); A slag blocking plate (522) is slidably connected to the outer wall of the recovery pipe (500) and is used to open and close the slag removal hole (527).

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