Stirring device for battery electrode slurry

Abstract

The utility model discloses a stirring device for battery electrode slurry, and belongs to the field of stirring equipment for the battery electrode slurry. According to the utility model, the first opening is formed in the side wall of the stirring tank, the viscometer is mounted by virtue of the mounting seat body connected to the first opening, and the viscometer is electrically connected to the PLC of the stirring tank. During use, battery electrode slurry in the stirring tank enters the cavity of the mounting seat body, the viscosity is sensed by the viscometer and is transmitted to the PLC through communication, and the PLC further displays the viscosity on the touch screen, so that a user can know the concentration condition of the battery electrode slurry in the stirring tank, and the concentration condition of the battery electrode slurry in the stirring tank is displayed on the touch screen. According to the device, online monitoring and automatic adjustment of the viscosity of the slurry are realized, the viscosity consistency of the slurry is remarkably improved, and the requirement of manual adjustment is reduced, so that the stirring efficiency and the coating quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the mixing equipment field of battery electrode slurry, especially a kind of mixing device of battery electrode slurry. BACKGROUND

[0002] There are many preparation processes of battery electrode slurry, and the mixing of battery electrode slurry is a key step, which directly affects the quality of electrode and the performance of battery.

[0003] In the existing planetary mixer, the planetary stirrer has multiple stirring arms and a stirring tank. By putting battery electrode raw materials into the stirring tank, the stirring arms mix the materials in multiple directions, so that the raw materials are uniformly dispersed, and the prepared slurry is more fully mixed.

[0004] In actual planetary mixer operation, the operator adds powder, and the stirring paddle and stirring tank will be folded and stirred. The operator can only estimate the stirring time according to experience. However, it can be understood that the components of the electrode slurry prepared by the planetary mixer are not necessarily the same each time, and it is difficult to ensure that the electrode slurry with qualified viscosity is obtained each time by relying on experience. However, in the stirring process, a viscometer in the motor glue needs to be obtained, the mixer needs to be paused, the stirring paddle needs to be raised, and the viscometer needs to be in contact with the slurry for measurement. When the viscosity does not meet the requirements, the mixer needs to be started again for stirring.

[0005] Therefore, the current mixer is not convenient for accurately measuring and calculating the viscosity of electrode slurry, which leads to poor viscosity consistency and ultimately affects the quality of electrode coating. INVENTION CONTENTS

[0006] To solve the problems in the prior art, the main purpose of the utility model is to provide a mixing device for battery electrode slurry. The mixing machine realizes the consistency of the viscosity of the stirred slurry and the improvement of the stirring efficiency through online viscosity monitoring and automatic adjustment functions.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] It comprises a stirring mechanism, a stirring tank, a PLC controller and an input / output mechanism, characterized in that a first opening is provided on the side wall of the stirring tank, a mounting seat body connected to the first opening from the outer wall is provided on the stirring tank, the mounting seat body seals the first opening, the mounting seat body has a cavity that does not coincide with the inner cavity of the stirring tank and is provided with a second opening, a viscometer is hermetically connected to the second connecting hole, the detection end of the viscometer extends into the cavity of the mounting seat body and is spaced from the inner cavity of the stirring tank, the viscometer is connected to the PLC controller through a wire, and the PLC controller is electrically connected to the input / output mechanism.

[0009] Preferably, the mounting seat body comprises an upper curved portion and a lower curved portion, the upper curved portion has a circular-arc-shaped side and is curved to an obliquely upper side, the lower curved portion has a circular-arc-shaped side and is curved to an obliquely lower side; the upper curved portion and the lower curved portion are integrally connected; the first opening is a circular hole, the side of the upper curved portion and the side of the lower curved portion combined in a circular shape and fit in the first opening.

[0010] Preferably, the sides of the upper curved portion and the lower curved portion of the integral mounting seat body are connected with the side wall of the first opening through welding.

[0011] Preferably, the inclination angle of the lower curved portion relative to the horizontal direction is greater than the inclination angle of the upper curved portion relative to the horizontal direction.

[0012] Preferably, the mounting seat body further comprises a folded edge portion, the folded edge portion extends radially from the side of the upper curved portion and the side of the lower curved portion, the folded edge portion is integrally connected with the upper curved portion and the lower curved portion, and the folded edge portion is welded with the outer side wall of the stirring tank.

[0013] Preferably, the outer surface of the upper curved portion is provided with a flat structure, and the second opening is arranged on the flat structure.

[0014] Preferably, the second opening is provided with an internal thread, the viscometer is provided with an external thread, and the viscometer is connected with the second opening through cooperation of the external thread and the internal thread.

[0015] Preferably, the first opening is provided with two, the two first openings are arranged at the same depth of the stirring tank and located at two opposite sides in the circumferential direction, each first opening is provided with a mounting seat body, and each mounting seat body is provided with a viscometer.

[0016] Preferably, the viscometer is a vibration type online viscometer.

[0017] Preferably, the stirring mechanism is a planetary double-paddle stirring structure.

[0018] Compared with the prior art, the utility model has the beneficial effects as follows:

[0019] The utility model discloses a viscosity meter is installed to the side wall of the stirring jar through setting first opening, and the viscosity meter is installed through the mounting seat body connected to the first opening, and the viscosity meter is electrically connected to the PLC controller of the stirring jar.

[0020] The utility model makes further detailed description to the specific implementation of the utility model below combining with the drawings and examples. DRAWINGS

[0021] Figure 1 The overall structure schematic diagram of the mixer of lithium ion battery electrode slurry according to the utility model.

[0022] Figure 2 The partial section structure schematic diagram of the mixer of lithium ion battery electrode slurry according to the utility model.

[0023] Figure 3 The partial section structure schematic diagram of the Figure 2 of the utility model.

[0024] Figure 4 The circuit structure schematic diagram of the mixer of lithium ion battery electrode slurry according to the utility model.

[0025] Reference signs: 10, stirring mechanism;20, stirring jar;21, first opening;30, PLC controller;40, input / output mechanism;50, mounting seat body;51, second opening;52, upper curved surface part;53, lower curved surface part;54, folded edge part;60, viscosity meter. DETAILED DESCRIPTION

[0026] For the purpose, technical scheme and advantages of the utility model, the specific implementation of the utility model is further described in detail below combining with the drawings and examples. The following examples are used to illustrate the utility model, but not as the range of the utility model.

[0027] As Figures 1 to 4The utility model discloses a kind of stirring devices of battery electrode slurry according to the embodiment of the utility model.The stirring device mainly includes stirring mechanism 10, stirring tank 20, PLC controller 30 and input / output mechanism 40.Wherein, stirring mechanism 10 adopts planetary double-paddle stirring structure, can make motor slurry more evenly stir.Input / output mechanism 40 adopts touch screen, can show the working state of stirring device to user, and facilitate user to input control instruction.

[0028] The embodiment is characterized in that the first opening 21 is arranged on the side wall of the stirring tank 20, the mounting seat 50 is arranged on the stirring tank 20 and connected to the first opening 21 from the outer wall, the mounting seat 50 seals the first opening 21, the mounting seat 50 has a non-overlapping inner cavity with the inner cavity of the stirring tank 20 and is provided with a second opening 51, the second opening 51 is hermetically connected with the viscometer 60, the viscometer 60 is a vibration type online viscometer 60, the detection end of the viscometer 60 extends into the cavity of the mounting seat 50 and is spaced from the inner cavity of the stirring tank 20, the viscometer 60 is connected to the PLC controller 30 through a wire, and the PLC controller 30 is electrically connected to the touch screen.

[0029] It is worth mentioning that, in the utility model, the first opening 21 is arranged on the side wall of the stirring tank 20, and the viscometer 60 is installed by means of the mounting seat 50 connected to the first opening 21, and the viscometer 60 is electrically connected to the PLC controller 30 of the stirring tank 20. In use, the battery electrode slurry in the stirring tank 20 will enter the cavity of the mounting seat 50, and the viscosity is sensed by the viscometer 60 and transmitted to the PLC controller 30 through communication, and the PLC controller 30 further displays the viscosity on the touch screen, so that the user can know the concentration of the battery electrode slurry in the stirring tank 20.

[0030] Reference Figure 3In the embodiment, the mounting base 50 comprises an upper curved portion 52, a lower curved portion 53 and a folded edge portion 54, which are connected by integral molding. The upper curved portion 52 has a circular arc-shaped side and is curved to the upper side, and the lower curved portion 53 has a circular arc-shaped side and is curved to the lower side. The side of the upper curved portion 52 and the side of the lower curved portion 53 combine to form a circle, which is matched with the first opening 21 which is also circular. The upper curved portion 52 is curved to the upper side, and the lower curved portion 53 is curved to the lower side, so as to form a cavity. In use, with the stirring movement of the stirring mechanism 10, the battery electrode slurry moves circumferentially and enters the upper curved portion 52 and the lower curved portion 53. Since the upper curved portion 52 and the lower curved portion 53 are arranged as inclined curved surfaces, the battery electrode slurry has good fluidity, so as to flow back into the stirring tank 20, and the accuracy and real-time performance of viscosity measurement are ensured. In order to facilitate installation, the inclination of the lower curved portion 53 relative to the horizontal direction is greater than the inclination of the upper curved portion 52 relative to the horizontal direction, so that the lower curved portion 53 is closer to the vertical inner side wall of the stirring tank 20, and the upper curved portion 52 is closer to the horizontal plane, so that the lower curved portion 53 has better fluidity, and the upper curved portion 52 is more convenient for the installation of the viscometer 60.

[0031] Reference Figure 3 In the embodiment, the upper curved portion 52 and the lower curved portion 53 are provided with sides, and the sides of the integral mounting base 50 are connected to the side walls of the first opening 21 by welding. In this way, on the one hand, the closed connection between the stirring tank 20 and the mounting base 50 is realized, and on the other hand, the sides of the upper curved portion 52 and the first opening 21 form a circular arc transition of the welding seam, and similarly, the sides of the lower curved portion 53 and the first opening 21 form a circular arc transition of the welding seam, so that the flow of the battery electrode slurry is more smooth.

[0032] Reference Figure 3 In the embodiment, the folded edge portion 54 extends radially from the side of the upper curved portion 52 and the side of the lower curved portion 53, and is integrally connected to the upper curved portion 52 and the lower curved portion 53. The folded edge portion 54 is welded to the outer side wall of the stirring tank 20. The mounting base 50 is further fixed to the outer side wall of the stirring tank 20 through the folded edge portion 54, so as to realize the sealing and stability.

[0033] The outer surface of the upper curved surface part 52 is provided with a flat structure, and the second opening 51 is formed on the flat structure. Meanwhile, the second opening 51 is internally threaded, and the viscometer 60 is provided with external threads, and the viscometer 60 is connected to the second opening 51 through the cooperation of the external threads and the internal threads. In use, the viscometer 60 can be conveniently connected to the mounting seat 50 through the threads, and a more airtight connection can be achieved through the raw material belt. The flat structure provided on the upper curved surface part 52 can abut against the viscometer 60, and stability during use can be achieved.

[0034] With reference to Figure 2 In this embodiment, two first openings 21 are provided, and the two first openings 21 are arranged at the same depth of the stirring tank 20 and located at two opposite sides in the circumferential direction. Each first opening 21 is provided with a mounting seat 50, and each mounting seat 50 is provided with a viscometer 60. The two viscometers 60 are electrically connected to the PLC controller 30 through wires respectively, and send the respective detected viscosity parameters to the PLC controller 30. The PLC controller 30 can determine whether the battery electrode slurry is stirred uniformly according to the difference between the two, so as to better improve the quality of the battery electrode slurry.

[0035] In this embodiment, the viscometer 60 is a vibration type online viscometer 60, which can actively generate vibration and sense viscosity, so as to ensure the accuracy of viscosity measurement.

[0036] The above embodiments mainly describe the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A stirring device of a battery electrode slurry comprising a stirring mechanism (10), a stirring tank (20), a PLC controller (30), and an input / output mechanism (40), characterized by, The side wall of the stirring tank (20) is provided with a first opening (21), the stirring tank (20) is provided with a mounting seat body (50) connected to the first opening (21) from the outer side wall, the mounting seat body (50) closes the first opening (21), the mounting seat body (50) has a cavity not coinciding with the inner cavity of the stirring tank (20) and is provided with a second opening (51), the second opening (51) is tightly connected with a viscometer (60), the detection end of the viscometer (60) extends into the cavity of the mounting seat body (50) and is spaced from the inner cavity of the stirring tank (20), the viscometer (60) is connected to the PLC controller (30) through a wire, and the PLC controller (30) is electrically connected to the input / output mechanism (40).

2. The apparatus of claim 1, wherein the apparatus is configured to stir the electrode slurry in a manner that the electrode slurry is stirred in a direction that is substantially parallel to the surface of the electrode slurry. The mounting seat body (50) comprises an upper curved surface part (52) and a lower curved surface part (53), the upper curved surface part (52) has a circular arc-shaped side and is curved to the upper side, and the lower curved surface part (53) has a circular arc-shaped side and is curved to the lower side; the upper curved surface part (52) and the lower curved surface part (53) are integrally connected; the first opening (21) is a circular hole, and the side of the upper curved surface part (52) and the side of the lower curved surface part (53) are combined in a circular shape and matched with the first opening (21).

3. The apparatus of claim 2, wherein the shaft is a hollow shaft. The sides of the upper curved surface part (52) and the lower curved surface part (53) of the integral mounting seat body (50) are connected to the side wall of the first opening (21) by welding.

4. The apparatus of claim 2, wherein the shaft is a hollow shaft. The inclination angle of the lower curved surface part (53) relative to the horizontal direction is greater than the inclination angle of the upper curved surface part (52) relative to the horizontal direction.

5. The apparatus of claim 2, wherein the shaft is a hollow shaft. The mounting seat body (50) further comprises a folded edge part (54) extending radially from the side of the upper curved surface part (52) and the side of the lower curved surface part (53), the folded edge part (54) is integrally connected to the upper curved surface part (52) and the lower curved surface part (53), and the folded edge part (54) is welded to the outer side wall of the stirring tank (20).

6. The apparatus of claim 2, wherein the shaft is a hollow shaft. The outer surface of the upper curved surface part (52) is provided with a planar structure, and the second opening (51) is formed on the planar structure.

7. The apparatus of claim 1, wherein the apparatus is a battery electrode slurry stirring device. The second opening (51) has an internal thread, the viscometer (60) is provided with an external thread, and the viscometer (60) is connected to the second opening (51) through cooperation of the external thread and the internal thread. The first opening (21) is provided with two, the two first openings (21) are provided at the same depth of the stirring tank (20) and located at the opposite sides in the circumferential direction, each first opening (21) is provided with a mounting seat body (50), and each mounting seat body (50) is provided with a viscometer (60).

8. The apparatus of claim 1, wherein the apparatus is a battery electrode slurry stirring device. The viscometer (60) is a vibration type online viscometer (60).

9. A device for stirring a battery electrode slurry according to any one of claims 1 to 8, characterized in that, The stirring mechanism (10) is a planetary double-paddle stirring structure.

10. A stirring device for a battery electrode slurry according to any one of claims 1 to 8, characterized in that, ​

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