Lithium battery powder material washing device

Abstract

The utility model discloses a lithium battery powder material washing device, which comprises a washing mechanism, a charging mechanism, a water adding mechanism, an interlayer cooling mechanism, a ramming mechanism and a weighing mechanism, the washing mechanism comprises a washing kettle, a driving motor arranged at the top of the washing kettle, a stirring shaft arranged at the output end of the driving motor and a paddle arranged on the side wall of the stirring shaft, the feeding mechanism comprises a feeding pipeline, a feeding motor arranged at the end of the feeding pipeline, a feeding screw arranged at the output end of the feeding motor and a discharging pipe arranged on the feeding pipeline and extending into the washing kettle, and a feeding port of the feeding pipeline is communicated with a metering bin and a first weighing module. The water adding mechanism comprises a pure water tank, a pure water pump communicated with the pure water tank and a water spraying ring communicated with the pure water pump and located in the washing kettle, and pure water in the pure water tank is introduced into the water spraying ring through the pure water pump and used for cleaning the inner wall of the washing kettle and the paddles.

Description

Technical Field

[0001] The utility model relates to the technical field of water washing devices, in particular to a water washing device for lithium battery powder materials. Background Art

[0002] High-nickel ternary materials are the future application direction of high-energy-density power batteries. The higher the nickel content, the greater the surface alkali content. It is easier to absorb water during the homogenization and coating process, causing the slurry to be jelly-like. Therefore, high-nickel ternary lithium battery positive electrode materials need to be washed to remove the residual alkali on the surface of the material to improve the material performance. At present, the mass production water washing device of high-nickel ternary lithium battery positive electrode materials has the problem that the material sticks to the inner wall of the water washing kettle and the stirring paddle during the feeding and stirring process. The residual material cannot be transported to the subsequent process in time, and the long residence time in the water washing kettle affects the material performance. The residual material inside the water washing kettle will gradually increase with time, affecting the water washing effect. In addition, the insufficient intelligence of the water washing kettle device leads to different degrees of water washing intensity differences between the washed materials, which in turn affects the consistency of material performance. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above-mentioned and / or existing problems in the use of a water washing device for lithium battery powder materials, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a water washing device for lithium battery powder materials, in which pure water in a pure water tank is passed into a water sprinkling ring through a pure water pump and evenly sprinkled on the material. The amount of water added is controlled by a flow meter, and the water sprinkling ring can be used as a cleaning spray ring to clean the inner wall and paddles of the water washing kettle.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A lithium battery powder material washing device, comprising:

[0008] A water washing mechanism, the water washing mechanism comprising a water washing kettle, a driving motor arranged on the top of the water washing kettle, a stirring shaft arranged at the output end of the driving motor, and a paddle arranged on the side wall of the stirring shaft;

[0009] A feeding mechanism, the feeding mechanism comprising a feeding pipeline, a feeding motor arranged at the end of the feeding pipeline, a feeding screw arranged at the output end of the feeding motor, and a feeding pipe arranged in the feeding pipeline and extending into the washing kettle, wherein the feeding port of the feeding pipeline is connected with a metering bin and a first weighing module;

[0010] A water adding mechanism, the water adding mechanism comprising a pure water tank, a pure water pump connected to the pure water tank, and a water sprinkling ring connected to the pure water pump and located inside the water washing kettle;

[0011] An interlayer cooling mechanism, the interlayer cooling mechanism comprising a jacket arranged on the outer periphery of the water washing kettle, a cooling water tank connected to the jacket, and a circulating water pump connected to the cooling water tank and the jacket respectively;

[0012] A material beating mechanism, which is used to beat out the material in the water washing kettle;

[0013] The weighing mechanism comprises a bracket and a second weighing module arranged on the side wall of the bracket, and the second weighing module is arranged on the side wall of the jacket.

[0014] As a preferred solution of the lithium battery powder material water washing device described in the utility model, a hose is connected between the pure water pump and the water spraying ring, and a solenoid valve is provided at the inlet of the water spraying ring.

[0015] As a preferred solution of the lithium battery powder material water washing device described in the utility model, the side wall of the water spray ring is provided with an outer spray hole facing the inner wall of the water washing kettle and an inner spray hole facing the paddle direction.

[0016] As a preferred solution of the lithium battery powder material water washing device described in the utility model, an in-kettle thermocouple is arranged inside the water washing kettle, and an in-jacket thermocouple is arranged inside the jacket.

[0017] As a preferred solution of the lithium battery powder material water washing device described in the utility model, a pulse dust collector is provided on the side wall of the water washing kettle, and the water inlet of the cooling water tank is connected through a hose.

[0018] As a preferred solution of the lithium battery powder material water washing device described in the utility model, the feeding mechanism includes a bottom valve arranged at the bottom of the water washing kettle and a feeding pump connected to the bottom valve.

[0019] As a preferred solution of the lithium battery powder material water washing device described in the utility model, a flow meter is provided at the outlet of the pure water tank, and the flow meter is electrically connected to the solenoid valve.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the lithium battery powder material water washing device uses a pure water pump to pass the pure water in the pure water tank into the water sprinkling ring, and evenly sprinkles it on the material. The amount of water added is controlled by a flow meter, and the water sprinkling ring can be used as a cleaning spray ring to clean the inner wall and paddles of the water washing kettle, thereby realizing automated water washing operation with precision and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 This is a schematic diagram of the overall first-view structure of a lithium battery powder material washing device of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall second-view structure of a lithium battery powder material washing device of the utility model;

[0024] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a lithium battery powder material water washing device.

[0025] 100, water washing mechanism; 110, water washing kettle; 111, thermocouple in kettle; 120, driving motor; 130, stirring shaft; 140, paddle; 200, feeding mechanism; 210, feeding pipeline; 220, feeding motor; 230, feeding screw; 240, feeding pipe; 211, metering bin; 300, water adding mechanism; 310, pure water tank; 320, pure water pump; 311, flow meter; 330, water sprinkling ring; 400, interlayer cooling mechanism; 410, cooling water tank; 420, circulating water pump; 430, jacket; 431, thermocouple in jacket; 500, punching mechanism; 510, bottom valve; 520, punching pump; 600, weighing mechanism; 610, bracket; 620, second weighing module. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention in detail, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged at a general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The utility model provides a lithium battery powder material water washing device, which uses a pure water pump to pass pure water in a pure water tank into a water sprinkling ring and evenly sprinkles it on the material, and controls the amount of water added by a flow meter. The water sprinkling ring can be used as a cleaning spray ring to clean the inner wall of the water washing kettle and the paddles.

[0030] Figure 1-Figure 3 The structure diagram of an embodiment of a lithium battery powder material washing device of the utility model is shown. Figure 1-Figure 3 The present embodiment is a lithium battery powder material water washing device, the main part of which includes a water washing mechanism 100, a feeding mechanism 200, a water adding mechanism 300, an interlayer cooling mechanism 400, a material beating mechanism 500 and a weighing mechanism 600.

[0031] The water washing mechanism 100 drives the stirring shaft 130 and the paddle 140 to rotate through the driving motor 120, stirs and mixes the materials inside the water washing kettle 110, and collects dust through the pulse dust collector. Specifically, the water washing mechanism 100 includes a water washing kettle 110, a driving motor 120 arranged at the top of the water washing kettle 110, a stirring shaft 130 arranged at the output end of the driving motor 120, and a paddle 140 arranged on the side wall of the stirring shaft 130. In this embodiment, the water washing kettle 110 is provided with an in-kettle thermocouple 111, and the side wall of the water washing kettle 110 is provided with a pulse dust collector. The water inlet of the cooling water tank 410 is connected through a hose;

[0032] The feeding mechanism 200 puts materials into the metering bin 211 on the feeding pipe 210, and weighs the materials using the first weighing module, wherein the first weighing module is electrically connected to the feeding motor 220, and the first module also includes a control module for controlling the start and stop of the feeding motor 220, and the feeding motor 220 is used to drive the feeding screw 230 to rotate, and push the material from the discharge pipe 240 into the washing kettle 110. When the weight is reached, the control module controls the feeding motor 220 to stop and stop feeding. Specifically, the feeding mechanism 200 includes a feeding pipe 210, a feeding motor 220 arranged at the end of the feeding pipe 210, a feeding screw 230 arranged at the output end of the feeding motor 220, and a discharge pipe 240 arranged on the feeding pipe 210 and extending into the washing kettle 110. The feeding port of the feeding pipe 210 is connected with the metering bin 211 and the first weighing module;

[0033] The water adding mechanism 300 passes the pure water in the pure water tank 310 into the water spraying ring 330 through the pure water pump 320, and evenly sprinkles it on the material. The amount of water added is controlled by the flow meter 311, and the water spraying ring 330 can be used as a cleaning spray ring to clean the inner wall of the washing kettle 110 and the paddle 140. Specifically, the water adding mechanism 300 includes a pure water tank 310, a pure water pump 320 connected to the pure water tank 310, and a pure water pump 320 connected to the pure water pump 320 and positioned The water spraying ring 330 inside the water washing kettle 110, in this embodiment, a hose is connected between the pure water pump 320 and the water spraying ring 330, an electromagnetic valve is provided at the inlet of the water spraying ring 330, and the side wall of the water spraying ring 330 is provided with an outer spraying hole toward the inner wall of the water washing kettle 110 and an inner spraying hole toward the blade 140, and the outlet of the pure water tank 310 is provided with a flow meter 311, and the flow meter 311 is electrically connected to the electromagnetic valve;

[0034] The interlayer cooling mechanism 400 pumps cold water into the jacket 430 through the circulating water pump 420 to cool the water washing kettle 110, uses the inner-jacket thermocouple 431 to detect the water temperature, and cooperates with the inner-kettle thermocouple 111 to detect the temperature inside the kettle. When the temperature inside the kettle drops to the set temperature, the circulating water pump 420 is controlled to stop supplying cold water to the jacket 430. Specifically, the interlayer cooling mechanism 400 includes a jacket 430 arranged on the outer periphery of the water washing kettle 110, a cooling water tank 410 connected to the jacket 430, and a circulating water pump 420 connected to the cooling water tank 410 and the jacket 430, respectively. In this embodiment, the inner-jacket thermocouple 431 is arranged inside the jacket 430;

[0035] The material-beating mechanism 500 beats out the washed material through the material-beating pump 520. Specifically, the material-beating mechanism 500 is used to beat out the material in the water-washing kettle 110. In this embodiment, the material-beating mechanism 500 includes a bottom valve 510 disposed at the bottom of the water-washing kettle 110 and a material-beating pump 520 connected to the bottom valve 510.

[0036] The weighing mechanism 600 weighs the washing kettle 110 as a whole through the weighing mechanism 600. When 50 to 150 kg of material is pumped out of the washing kettle 110, the pure water pump 320 is controlled to add 50 to 100 kg of spray water into the washing kettle 110 to clean the inner wall of the washing kettle 110 and the paddle 140. Finally, the spray water and the slurry are sent to the subsequent process for dehydration. Specifically, the weighing mechanism 600 includes a bracket 610 and a second weighing module 620 arranged on the side wall of the bracket 610. The second weighing module 620 is arranged on the side wall of the jacket 430.

[0037] Among them, the driving motor 120, the feeding motor 220, the first weighing module, the second weighing module 620, the pure water pump 320, the circulating water pump 420, the thermocouple in the kettle 111, the thermocouple in the sleeve 431, the solenoid valve, the flow meter 311, the pulse dust collector and the material pump 520 are connected to an external water washing program through a line. The water washing program receives signals from the first weighing module, the second weighing module 620, the thermocouple in the kettle 111, the thermocouple in the sleeve 431 and the flow meter 311, and processes and analyzes the signals to achieve the purpose of automatically controlling the driving motor 120, the feeding motor 220, the pure water pump 320, the circulating water pump 420, the solenoid valve, the pulse dust collector and the material pump 520, thereby realizing automated water washing operation with precision and efficiency.

[0038] Combination Figure 1-Figure 3 The specific use process of a lithium battery powder material water washing device of this embodiment is as follows: start the water washing program, set the weight of the material to be washed and the weight of pure water, because the water washing kettle 110 cannot guarantee an absolute stable state during the operation of the paddle 140 during water washing, which affects the measurement, so the material to be washed is weighed using the first module of the metering bin 211, and the weight of pure water is measured using the flow meter 311, and the accuracy of the addition of materials and water is guaranteed through equipment optimization. First, open the solenoid valve to add 50% to 80% pure water into the water washing kettle 110. After adding, open the pulse dust collector of the water washing kettle 110 to collect dust. The material in the metering bin 211 is added to the water washing kettle 110 through the feeding screw 230. A certain amount of material is added, and the remaining pure water is added simultaneously. After the material and water are added, they are stirred and washed in the water washing kettle 110. Open the bottom valve 510 and transport the washed slurry through the feeding pump 520. When the last 50 to 150 kg of material is fed, add 50 to 100 kg of spray pure water into the water washing kettle 110. Finally, the spray water and the slurry are sent to the subsequent process for dehydration.

[0039] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lithium battery powder material washing device, characterized in that: include: A water washing mechanism (100), the water washing mechanism (100) comprising a water washing kettle (110), a driving motor (120) arranged at the top of the water washing kettle (110), a stirring shaft (130) arranged at the output end of the driving motor (120), and a paddle (140) arranged on the side wall of the stirring shaft (130); A feeding mechanism (200), the feeding mechanism (200) comprising a feeding pipeline (210), a feeding motor (220) arranged at the end of the feeding pipeline (210), a feeding screw (230) arranged at the output end of the feeding motor (220), and a feeding pipe (240) arranged at the feeding pipeline (210) and extending into the interior of the washing kettle (110), wherein the feeding port of the feeding pipeline (210) is connected to a metering bin (211) and a first weighing module; A water adding mechanism (300), the water adding mechanism (300) comprising a pure water tank (310), a pure water pump (320) connected to the pure water tank (310), and a water spraying ring (330) connected to the pure water pump (320) and located inside the water washing kettle (110); An interlayer cooling mechanism (400), the interlayer cooling mechanism (400) comprising a jacket (430) disposed on the outer periphery of the water washing kettle (110), a cooling water tank (410) connected to the jacket (430), and a circulating water pump (420) respectively connected to the cooling water tank (410) and the jacket (430); A material beating mechanism (500), the material beating mechanism (500) is used to beat out the material in the water washing kettle (110); A weighing mechanism (600) comprises a bracket (610) and a second weighing module (620) arranged on a side wall of the bracket (610), wherein the second weighing module (620) is arranged on a side wall of the jacket (430).

2. A lithium battery powder material washing device according to claim 1, characterized in that: A hose is connected between the pure water pump (320) and the water sprinkling ring (330), and an electromagnetic valve is provided at the inlet of the water sprinkling ring (330).

3. A lithium battery powder material washing device according to claim 2, characterized in that: The side wall of the water spray ring (330) is provided with an outer spray hole facing the inner wall of the water washing kettle (110) and an inner spray hole facing the blade (140).

4. A lithium battery powder material washing device according to claim 3, characterized in that: The water washing kettle (110) is provided with an in-kettle thermocouple (111), and the jacket (430) is provided with an in-jacket thermocouple (431).

5. A lithium battery powder material washing device according to claim 4, characterized in that: A pulse dust collector is disposed on the side wall of the water washing kettle (110), and the water inlet of the cooling water tank (410) is connected via a hose.

6. A lithium battery powder material washing device according to claim 5, characterized in that: The material-beating mechanism (500) comprises a bottom valve (510) arranged at the bottom of the water washing kettle (110) and a material-beating pump (520) connected to the bottom valve (510).

7. A lithium battery powder material washing device according to claim 6, characterized in that: The outlet of the pure water tank (310) is provided with a flow meter (311), and the flow meter (311) is electrically connected to the solenoid valve.

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