Laser particle size analysis pretreatment device and battery slurry detection equipment

Abstract

The utility model provides a laser particle size analysis pretreatment device and battery slurry detection equipment, and belongs to the technical field of battery slurry stirring analysis. The laser particle size analysis pretreatment device comprises a stirring assembly and an ultrasonic assembly, wherein the stirring assembly comprises a first driving unit and a plurality of stirring rods connected with the first driving unit; the ultrasonic assembly comprises an ultrasonic transducer and a box body, the box body is provided with a containing cavity, a plurality of containers in one-to-one correspondence with the stirring rods are arranged in the containing cavity, the containers are used for containing slurry to be treated, and the ultrasonic transducer is used for applying ultrasonic vibration to the slurry in the containers; and the plurality of stirring rods are configured to synchronously rotate under the driving of the first driving unit so as to respectively stir the slurry in the corresponding containers. According to the structural design, multiple groups of samples can be automatically stirred and ultrasonically vibrated at the same time, the sample treatment efficiency can be improved, and the sample treatment consistency can also be improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery detection, and in particular to a laser particle size analysis pre-processing device and a battery slurry detection device. Background Art

[0002] Laser particle size analyzer is an instrument that analyzes particle size by the spatial distribution of diffraction or scattered light from particles. Before performing sample particle size analysis, the sample needs to be evenly dispersed, usually by stirring and ultrasonic vibration to fully disperse the agglomerated particles.

[0003] Currently, manual dispersion is usually performed before laser particle size analysis, which leads to low sample processing efficiency and related problems such as poor consistency of dispersion effect. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the background technology. To this end, one purpose of the present application is to provide a laser particle size analysis pre-processing device and a battery slurry detection device to improve the sample processing efficiency and improve the problem of poor consistency of sample dispersion effect.

[0005] An embodiment of the first aspect of the present application provides a laser particle size analysis pretreatment device, which includes a stirring component and an ultrasonic component. The stirring component includes a first drive unit and a plurality of stirring rods connected to the first drive unit; the ultrasonic component includes an ultrasonic transducer and a housing, the housing has a accommodating cavity, and a plurality of containers corresponding to the plurality of stirring rods are arranged in the accommodating cavity. The plurality of containers are used to accommodate slurry to be processed, and the ultrasonic transducer is used to apply ultrasonic vibration to the slurry in the plurality of containers; wherein the plurality of stirring rods are configured to rotate synchronously under the drive of the first drive unit to respectively stir the slurry in the corresponding containers.

[0006] In the technical solution of the embodiment of the present application, by setting a first driving unit, during the ultrasonic vibration process, the first driving unit is rotated to drive the stirring rod to automatically stir in the container, thereby replacing manual stirring, which can improve the stirring efficiency and the dispersion effect of the container slurry. In addition, the first driving unit can simultaneously drive multiple stirring rods to rotate synchronously to respectively stir the slurries in the corresponding containers, and can simultaneously process multiple groups of container samples, further improving the processing efficiency of the container samples. The synchronous rotation of multiple stirring rods can also improve the consistency of the dispersion effect of the container samples, and is also convenient for conducting control experiments on the samples to improve accuracy.

[0007] In some embodiments, the laser particle size analysis pre-processing device further includes a lifting component, which is connected to the stirring component, and the lifting component is configured to drive the stirring component to move in a vertical direction so that a plurality of stirring rods can enter and exit corresponding containers. By adding a lifting component and using the lifting component to drive the stirring component to move up and down, the automation level of the laser particle size analysis pre-processing device is improved, and the stirring rod can be quickly inserted before stirring and quickly removed after stirring, thereby saving operation process time and improving overall processing efficiency.

[0008] In some embodiments, the lifting assembly includes a column, a connecting plate, and a second driving unit. The connecting plate is movably connected to the column and is used to be fixedly connected to the stirring assembly. The second driving unit is fixedly connected to the column and is used to drive the connecting plate to move up and down along the column. The column of the lifting assembly is used as a support, and the connecting plate is fixedly connected to the column and the stirring assembly respectively. The second driving unit is used as a power source for driving, so that the connecting plate drives the stirring assembly to move up and down along the column, thereby increasing the moving speed.

[0009] In some embodiments, the stirring assembly further includes a first bearing platform, and wherein the first driving unit includes a rotating motor and a transmission member, wherein the rotating motor is fixedly mounted on the first bearing platform; the transmission member is disposed inside the first bearing platform, and the transmission member includes an input end and an output end, wherein the input end is connected to the output shaft of the rotating motor, and the output end is connected to a plurality of stirring rods. The rotating motor is supported by the first bearing platform, and the transmission member is connected to the output shaft of the rotating motor and the stirring rods respectively by the transmission member, and the rotating motor drives the transmission member to transfer kinetic energy to the stirring rods for rotation, and the rotating motor and the transmission member cooperate in a transmission mode to increase the rotation speed and improve the stability of power transmission.

[0010] In some embodiments, the transmission member includes a driving gear and a plurality of driven gears. The center hole of the driving gear is connected to the output shaft of the rotating motor as the input end of the transmission member; the plurality of driven gears are arranged at intervals along the circumference of the driving gear and mesh with the driving gear; the center holes of the plurality of driven gears are connected to the plurality of stirring rods one by one as the output end of the transmission member. The power is transmitted to the driving gear by the rotating motor, and the driving gear is meshed with the plurality of driven gears to transmit the power. The driven gears are arranged along the edge of the driving gear, and the position selection thereof is relatively flexible, so that it is convenient to correspond to the corresponding container position. The transmission mode of the meshing of the gears improves the stability of the transmission, and can satisfy the requirement that the plurality of stirring rods maintain the same rotation speed.

[0011] In some embodiments, the stirring rod includes a stirring rod and a stirring head, and the stirring head is connected to the end of the stirring rod; along the direction perpendicular to the extension direction of the stirring rod, the maximum size of the stirring head is greater than the size of the stirring rod. By setting the stirring rod as a stirring rod and a stirring head of different sizes, it is convenient for the stirring rod to quickly disperse the container slurry, and in the cross section perpendicular to the extension direction of the stirring rod, the maximum size of the stirring head is greater than the size of the stirring rod, which helps the stirring head to quickly stir the slurry at the bottom of the container and improve the stirring efficiency.

[0012] In some embodiments, the laser particle size analysis pre-processing device further comprises a second carrier, the top surface of the second carrier is used to carry the ultrasonic component, and the bottom of the second carrier has a plurality of vibration-damping feet arranged at intervals. Considering that the ultrasonic transducer is used to apply ultrasonic vibration to the slurry in the container, which may cause the laser particle size analysis pre-processing device to vibrate, by setting a second carrier, placing the ultrasonic component on the second carrier, and setting vibration-damping feet at the bottom of the second carrier, the influence caused by the vibration of the ultrasonic transducer can be reduced as much as possible.

[0013] In some embodiments, the laser particle size analysis pre-processing device further includes a controller; the controller includes a control panel and a processor, the control panel is used to receive input instructions, the processor is used to process the input instructions, and issue control instructions to one or more of the stirring component, the ultrasonic component, and the lifting component. By adding a controller and setting a corresponding control panel and processor, the automation requirements are met, and the control of the entire laser particle size analysis pre-processing device can be achieved through the control panel, and manual operation is simpler.

[0014] In some embodiments, the laser particle size analysis pre-processing device further comprises an alarm, which is connected to the controller. The laser particle size analysis pre-processing device is equipped with an alarm, and the alarm is connected to the controller by signals. According to the actual situation, the alarm can send out an alarm message to remind the operator in time, thereby improving safety performance.

[0015] An embodiment of the second aspect of the present application provides a battery slurry detection device, which includes the above-mentioned laser particle size analysis pretreatment device and laser particle size analyzer. The laser particle size analysis pretreatment device is used to pre-treat the battery slurry, and the laser particle size analyzer is used to detect the particle size distribution of the pre-treated battery slurry.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0018] Figure 1 This is a schematic diagram of the structure of a laser particle size analysis pre-processing device according to some embodiments of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the transmission parts of some embodiments of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of a stirring rod according to some embodiments of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of the detection equipment of some embodiments of the present application.

[0022] Description of reference numerals:

[0023] 10. Detection equipment; 100. Laser particle size analysis pre-processing device; 110. Stirring assembly; 111. First driving unit; 1111. Rotating motor; 1112. Transmission member; 11121. Input end; 11122. Output end; 11123. Driving gear; 11124. Driven gear; 112. Stirring rod; 1121. Stirring rod; 1122. Stirring head; 113. First carrying platform; 120. Ultrasonic assembly; 121. Ultrasonic transducer; 122. Box body; 1221. Accommodating chamber; 1222. Container; 130. Lifting assembly; 131. Column; 132. Connecting plate; 133. Second driving unit; 140. Second supporting platform; 141. Vibration-damping support foot; 150. Controller; 151. Control panel; 1511. Start button; 1512. Reset button; 1513. Speed ​​control valve; 1514. Emergency stop button; 152. Processor; 160. Alarm; 200. Laser particle size analyzer. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0033] In the manufacture of lithium-ion battery electrodes, the positive electrode slurry is composed of a binder, a conductive agent, a positive electrode material, etc.; the negative electrode slurry is composed of a binder, graphite carbon powder, etc. The preparation of positive and negative electrode slurries includes a series of process steps such as mixing, dissolving, and dispersing between liquids and liquids, and between liquids and solid materials, and this process is accompanied by changes in temperature, viscosity, and environment. In the positive and negative electrode slurries, the dispersion and uniformity of the granular active substances directly affect the movement of lithium ions between the two poles of the battery. Therefore, the mixing and dispersion of the slurries of various pole sheet materials is crucial in the production of lithium-ion batteries. The quality of the slurry dispersion directly affects the quality of subsequent lithium-ion battery production and the performance of its products.

[0034] The stirring process ensures the uniform distribution of positive and negative electrode materials, optimizes the internal structure of the battery, and evenly mixes the positive electrode materials, conductive agents, adhesives, solvents and other raw materials in a certain proportion to form a uniform positive electrode slurry, thereby improving the performance of lithium-ion batteries. The stirring process also helps to improve the stability of the slurry and prevent particles from settling or agglomerating. Through efficient stirring and dispersion technology, the particles of each component in the slurry can be evenly distributed on a microscopic scale, improving the stability of the battery's performance during long-term use. Therefore, before the battery is mass-produced, it is necessary to use a laser particle size analyzer to detect the dispersion of the battery slurry. The laser particle size analyzer is an instrument that analyzes the particle size by the spatial distribution of the diffraction or scattered light of the particles, so that the battery slurry can be adjusted accordingly.

[0035] At present, before conducting laser particle size analysis tests on lithium-ion battery materials in the laboratory, the battery materials need to be stirred. Lithium-ion battery materials such as lithium iron phosphate and graphite have the characteristics of small particle size and easy agglomeration. For example, for the particle size distribution measurement of particles with a particle size range of 0.1μm-0.3mm, the particle sample dispersed at a suitable concentration needs to pass through the measurement area together with the liquid or gas dispersion medium, so mechanical forces such as stirring and ultrasound are needed to disperse the agglomerated particles and stabilize the dispersion effect.

[0036] In some examples, the battery slurry sample is placed in an experimental container, and the battery slurry in the experimental container is manually stirred to meet the needs of dissolving and dispersing the battery slurry sample. In the above scheme, the manual stirring operation method may not be standardized, which may lead to problems such as poor dispersion effect of the battery slurry and low stirring efficiency. In addition, the stirring methods of different manual workers are also different, and there are related problems such as poor consistency of dispersion effect. In particular, when conducting control tests on different samples, the needs of the control experiment may not be met due to the problem of consistency of dispersion effect.

[0037] In order to solve the above technical problems, a combination of a stirring component and an ultrasonic component is adopted to connect the first driving unit to multiple stirring rods. During the ultrasonic vibration process, the first driving unit is rotated to drive the stirring rods to automatically stir the container, thereby improving the stirring efficiency. In addition, the first driving unit can simultaneously drive multiple stirring rods to rotate synchronously to stir the slurry in the corresponding containers respectively, and multiple groups of container samples can be processed at the same time, further improving the processing efficiency of container samples. The synchronous rotation of multiple stirring rods can also improve the consistency of the dispersion effect of container samples, and is also convenient for conducting control experiments on samples to improve accuracy.

[0038] The embodiment of the present application discloses a laser particle size analysis pretreatment device, which can be used for but not limited to processing lithium battery slurry. The laser particle size analysis pretreatment device of the present application can be used for any sample test that requires vibration stirring, including but not limited to: for emulsification, suspension, dissolution, separation and other processes, such as preparing sauces and condiments with better taste; in the drug preparation process, it is used for drug dispersion, mixing and other treatments to avoid the defects of traditional mechanical stirring that may destroy the drug structure; in cosmetics manufacturing, it is used for emulsification, dispersion and other processes to improve product stability and quality; in the printing and dyeing industry, it is used for the dispersion and mixing of pigments to improve printing and dyeing effects; in the field of biotechnology, it is used for cell disruption, protein extraction and other processes.

[0039] See also Figure 1 , Figure 1This is a structural schematic diagram of a laser particle size analysis pretreatment device according to some embodiments of the present application; the embodiment of the present application provides a laser particle size analysis pretreatment device 100, which includes a stirring component 110 and an ultrasonic component 120, the stirring component 110 includes a first driving unit 111, and a plurality of stirring rods 112 connected to the first driving unit 111; the ultrasonic component 120 includes an ultrasonic transducer 121 and a housing 122, the housing 122 has a accommodating cavity 1221, a plurality of containers 1222 corresponding to the plurality of stirring rods 112 are arranged in the accommodating cavity 1221, the plurality of containers 1222 are used to accommodate slurry to be processed, and the ultrasonic transducer 121 is used to apply ultrasonic vibration to the slurry in the plurality of containers 1222; wherein the plurality of stirring rods 112 are configured to rotate synchronously under the drive of the first driving unit 111 to respectively stir the slurry in the corresponding containers 1222.

[0040] The stirring assembly 110 is a device for stirring the slurry in the container 1222. The container 1222 is a container for accommodating the slurry to be processed. The container 1222 can be a test tube, a beaker or other vessel. The stirring assembly 110 specifically includes a first drive unit 111 and a plurality of stirring rods 112. The stirring rods 112 can be any structure that can stir the slurry, for example, a solid stirring rod, a hollow stirring rod, and its material is not limited, for example, a metal stirring rod, a plastic stirring rod. The first drive unit 111 is connected to the plurality of stirring rods 112 respectively, and the specific connection method is not limited, as long as the demand for the stirring rod 112 to rotate can be met. For example, the first drive unit 111 is a drive motor, and the drive motor drives the stirring rod 112 to rotate using a transmission belt, and the drive motor can also drive the stirring rod 112 to rotate using a gear. The specific number of stirring rods 112 is not limited, and its value should match the number of containers 1222. It should be noted here that, for the multiple stirring rods 112 , the first driving unit 111 should drive the multiple stirring rods 112 to rotate synchronously and at the same speed.

[0041] The ultrasonic component 120 is a device for vibrating the slurry in the container 1222. It is installed below the stirring component 110 and specifically includes an ultrasonic transducer 121 and a box 122. The ultrasonic transducer 121 is a piezoelectric ceramic that resonates at an ultrasonic frequency. The piezoelectric effect of the material converts the electrical signal into mechanical vibration. The ultrasonic transducer 121 is used to apply ultrasonic vibration to the slurry in the container 1222 in the box 122. The box 122 has an opening at the top and a receiving cavity 1221 inside. The receiving cavity 1221 is used to place the container 1222. The top opening facilitates the removal of the container 1222 from the receiving cavity 1221 and facilitates the insertion of the stirring rod 112 of the stirring component 110 into the container 1222. The specific structural shape of the box 122 is not limited. It can be a cubic box with a top opening or a cylindrical box with a top opening. In order to stably place the container 1222 , a corresponding support structure, such as a slot structure, may be added inside the box 122 . The support structure prevents the container 1222 from tilting, thereby facilitating the stirring and dispersion of the slurry in the container 1222 .

[0042] It should be noted that the number of containers 1222 that can be arranged in the accommodating cavity 1221 is related to the volume of the accommodating cavity 1221 and the volume of the container 1222. The smaller the volume of the container 1222 and the larger the volume of the accommodating cavity 1221, the greater the number of containers 1222 that are arranged accordingly. The specific value is not limited. For example, the accommodating cavity 1221 may be arranged with 2 containers 1222, 4 containers 1222, or 6 containers 1222.

[0043] In order to facilitate the understanding of the structure of the laser particle size analysis pre-processing device 100, the operation and use process of each component is now described. The slurry to be processed is placed in different containers 1222 in sequence, and then the containers 1222 are placed in the box 122 of the ultrasonic component 120 in sequence, and the stirring rods 112 are respectively extended into different containers 1222, so that the stirring rods 112 correspond to the containers 1222 one by one, and the ultrasonic transducer 121 applies ultrasonic vibration to the slurry in the container 1222, and the stirring rod 112 stirs the slurry in the container 1222 under the action of the first driving unit 111. The slurry in the container 1222 is quickly dissolved under the dual effects of stirring and ultrasonic vibration, so that the particles of each component are dispersed as evenly as possible, so that the laser particle size analyzer 200 can be used to detect the particle size distribution of the sample later.

[0044] It should be noted that the ultrasonic transducer 121 disperses by vibration, and the stirring rod 112 disperses by stirring, and the start order thereof can be determined according to the actual situation. For example, the stirring rod 112 is rotated first, and then the ultrasonic vibration is started; or the ultrasonic vibration is started first, and then the stirring rod 112 is rotated; or the stirring rod 112 and the ultrasonic vibration are started at the same time.

[0045] By setting up the first driving unit 111, during the ultrasonic vibration process, the first driving unit 111 is used to rotate and drive the stirring rod 112 to automatically stir in the container 1222, thereby replacing manual stirring, which can improve the stirring efficiency and the dispersion effect of the slurry in the container 1222. In addition, the first driving unit 111 can simultaneously drive multiple stirring rods 112 to rotate synchronously to stir the slurry in the corresponding containers 1222 respectively, and can process multiple groups of container 1222 samples at the same time, further improving the processing efficiency of the container 1222 samples. The synchronous rotation of multiple stirring rods 112 can also improve the consistency of the dispersion effect of the container 1222 samples, and is also convenient for conducting control experiments on samples to improve accuracy.

[0046] According to some embodiments of the present application, please refer to Figure 1 The laser particle size analysis pre-processing device 100 also includes a lifting component 130, which is connected to the stirring component 110. The lifting component 130 is configured to drive the stirring component 110 to move in a vertical direction so that the plurality of stirring rods 112 enter and exit corresponding containers.

[0047] The lifting assembly 130 is a device used to drive the stirring assembly 110 to rise and fall. It is close to the box 122 of the ultrasonic assembly 120. When the container 1222 needs to be stirred, the lifting assembly 130 drives the multiple stirring rods 112 to descend in the vertical direction so that the stirring rods 112 extend into the container 1222. After the stirring is completed, the lifting assembly 130 drives the multiple stirring rods 112 to rise in the vertical direction so that the stirring rods 112 rise and leave the container 1222, making it easy to take out the container 1222 for the next operation.

[0048] Any structure capable of achieving the lifting and lowering of the stirring component 110 can be used as the lifting component 130 of this embodiment. For example, the lifting component 130 can be a hydraulic lifting mechanism or a screw lifting mechanism.

[0049] By adding a lifting component 130 and using the lifting component 130 to drive the stirring component 110 to rise and fall, the degree of automation of the laser particle size analysis pre-processing device 100 is improved, and the stirring rod 112 is convenient for rapid entry before stirring and rapid exit after stirring, thereby saving operation process time and improving overall processing efficiency.

[0050] According to some embodiments of the present application, please refer to Figure 1 The lifting assembly 130 includes a column 131, a connecting plate 132 and a second driving unit 133. The connecting plate 132 is movably connected to the column 131 and is used to be fixedly connected to the stirring assembly 110. The second driving unit 133 is fixedly connected to the column 131 and is used to drive the connecting plate 132 to move up and down along the column 131.

[0051] The column 131 is a structure for supporting the connecting plate 132 and the second driving unit 133, which is fixed to one side of the box 122 of the ultrasonic component 120. The column 131 can be in various structural forms, for example, the column 131 is a cylinder or a cuboid. The shape of the connecting plate 132 is also not limited. For example, the connecting plate 132 is an L-shaped plate, a U-shaped plate, etc. A part of the connecting plate 132 is movably connected to the column 131, and another part of the connecting plate 132 is fixedly connected to the stirring component 110. The movable connection here can be understood as that the connecting plate 132 can be raised and lowered in the vertical direction relative to the column 131. The second driving unit 133 is a device for providing kinetic energy to the connecting plate 132, which is fixed to the column 131.

[0052] Exemplarily, the second driving unit 133 is a driving motor, and the column 131 is a cubic support column. The driving motor is fixed on the top of the column 131. A screw structure is arranged on the column 131. The driving motor drives the screw to rotate. The screw nut is connected to the connecting plate 132. The screw nut drives the connecting plate 132 to rise and fall, so that the connecting plate 132 drives the stirring assembly 110 to rise and fall.

[0053] The connecting plate 132 is fixedly connected to the column 131 and the stirring assembly 110 respectively by using the column of the lifting assembly 130 as support, and the second driving unit 133 is used as a power source for driving, so that the connecting plate 132 drives the stirring assembly 110 to move up and down along the column 131, thereby increasing the moving speed.

[0054] According to some embodiments of the present application, please refer to Figure 1 and Figure 2 , Figure 2 This is a structural schematic diagram of the transmission parts of some embodiments of the present application, wherein the stirring assembly 110 also includes a first supporting platform 113, and wherein the first driving unit 111 includes a rotating motor 1111 and a transmission part 1112, the rotating motor 1111 is fixedly mounted on the first supporting platform 113; the transmission part 1112 is arranged inside the first supporting platform 113, the transmission part 1112 includes an input end 11121 and an output end 11122, the input end 11121 is connected to the output shaft of the rotating motor 1111, and the output end 11122 is connected to a plurality of stirring rods 112.

[0055] The stirring assembly 110 is a device for stirring the slurry in the container 1222. For operation control, the stirring assembly 110 is provided with a first bearing platform 113. The first bearing platform 113 can be understood as a structure with a supporting function, for example, a flat plate structure, a box structure. A rotating motor 1111 is fixed on the supporting plane of the first bearing platform 113, and a transmission member 1112 is installed and fixed inside the first bearing platform 113. The transmission member 1112 is a device for transmitting the kinetic energy of the rotating motor 1111 to the stirring rod 112. For example, the transmission member 1112 can be a gear belt combination or a combination of multiple gears.

[0056] The transmission member 1112 specifically includes an input end 11121 and an output end 11122. The input end 11121 is connected to the output shaft of the rotating motor 1111, and the output end 11122 is connected to multiple stirring rods 112. The rotating motor 1111 transfers kinetic energy to the input end 11121, and then transfers the kinetic energy to the stirring rods 112 through the output end 11122, so that the multiple stirring rods 112 rotate and stir synchronously and at the same speed.

[0057] The rotating motor 1111 is supported by the first supporting platform 113, and the transmission member 1112 is respectively connected to the output shaft of the rotating motor 1111 and the stirring rod 112. The rotating motor 1111 drives the transmission member 1112 to transfer kinetic energy to the stirring rod 112 for rotation. The rotating motor 1111 and the transmission member 1112 cooperate with each other in a transmission mode to increase the rotation speed and improve the stability of power transmission.

[0058] According to some embodiments of the present application, please refer to Figure 2 The transmission member 1112 includes a driving gear 11123 and a plurality of driven gears 11124. The center hole of the driving gear 11123 serves as an input end 11121 of the transmission member 1112 and is connected to the output shaft of the rotating motor 1111; the plurality of driven gears 11124 are arranged at intervals along the circumference of the driving gear 11123 and mesh with the driving gear 11123; the center holes of the plurality of driven gears 11124 serve as output ends 11122 of the transmission member 1112 and are respectively connected to a plurality of stirring rods 112 in a one-to-one correspondence.

[0059] The transmission member 1112 is a device for transmitting the kinetic energy of the rotating motor 1111 to the stirring rod 112. Specifically, a gear meshing transmission method can be adopted. The transmission member 1112 is a combination of a driving gear 11123 and multiple driven gears 11124. The number of driven gears 11124 should correspond to the number of stirring rods 112. The driven gears 11124 are arranged at circumferential intervals along the driving gear 11123 and mesh with the driving gear 11123. When the driving gear 11123 rotates, the multiple driven gears 11124 rotate accordingly.

[0060] The specific structure is that the output shaft of the rotating motor 1111 is connected to the center hole of the driving gear 11123, and the center hole of the driving gear 11123 serves as the input end 11121 of the transmission member 1112. The rotation of the rotating motor 1111 drives the driving gear 11123 to rotate, thereby driving the driven gear 11124 to rotate accordingly. The center holes of the driven gears 11124 are respectively connected to the stirring rods 112, and the center holes of the driven gears 11124 serve as the output end 11122 of the transmission member 1112. The rotation of the driven gears 11124 drives multiple stirring rods 112 to rotate synchronously and at the same speed.

[0061] The power is transmitted to the driving gear 11123 through the rotating motor 1111, and the driving gear 11123 is engaged with multiple driven gears 11124 to transmit power. The driven gears 11124 are arranged along the edge of the driving gear 11123, and their position selection has great flexibility, which is convenient for corresponding to the position of the corresponding container 1222. The transmission method of the meshing of the gears improves the stability of the transmission, which can meet the requirement of maintaining the same rotation speed of multiple stirring rods 112.

[0062] According to some embodiments of the present application, please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of the stirring rod of some embodiments of the present application, wherein the stirring rod 112 includes a stirring rod 1121 and a stirring head 1122, wherein the stirring head 1122 is connected to the end of the stirring rod 1121; along a direction perpendicular to the extension direction of the stirring rod 1121, the maximum dimension of the stirring head 1122 is greater than the dimension of the stirring rod 1121.

[0063] The stirring rod 112 includes a stirring rod 1121 and a stirring head 1122. The stirring rod 1121 is a rod-shaped structure, and the stirring head 1122 is a structure for accelerating stirring efficiency. The stirring head 1122 is fixed to the end of the stirring rod 1121. The stirring head 1122 can be a spherical structure, an ellipsoidal structure, a coil, etc. The maximum size of the cross section of the stirring head 1122 perpendicular to the extension direction of the stirring rod 1121 is greater than the cross-sectional size of the stirring rod 1121.

[0064] By setting the stirring rod 112 as a stirring rod 1121 and a stirring head 1122 of different sizes, the stirring rod 112 can quickly disperse the slurry in the container 1222, and in the cross section perpendicular to the extension direction of the stirring rod 1121, the maximum size of the stirring head 1122 is larger than the size of the stirring rod 1121, thereby facilitating the stirring head 1122 to quickly stir the slurry at the bottom of the container 1222 and improving the stirring efficiency.

[0065] According to some embodiments of the present application, please refer to Figure 1The laser particle size analysis pre-processing device 100 also includes a second carrying platform 140, the top surface of the second carrying platform 140 is used to carry the ultrasonic component 120, and the bottom of the second carrying platform 140 has a plurality of vibration-damping feet 141 arranged at intervals.

[0066] The second carrier 140 is a structural device for supporting the ultrasonic component 120, and can be a flat plate structure or a box structure. The ultrasonic component 120 and the stirring component 110 can be fixed on the top surface of the second carrier 140. If the laser particle size analysis pre-processing device 100 also includes a lifting component 130, the lifting component 130 can also be fixed on the top surface of the second carrier 140. In order to reduce the impact of vibration, the bottom of the second carrier 140 has a plurality of vibration-damping feet 141 arranged at intervals, and the vibration-damping feet 141 have a device or material capable of vibration reduction, for example, the vibration-damping feet 141 have vibration-damping rubber pads.

[0067] Taking into account that the ultrasonic transducer 121 is used to apply ultrasonic vibration to the slurry in the container 1222, which may cause the laser particle size analysis pretreatment device 100 to vibrate, a second supporting platform 140 is provided, the ultrasonic component 120 is placed on the second supporting platform 140, and a vibration-damping support foot 141 is provided at the bottom of the second supporting platform 140, so as to minimize the impact caused by the vibration of the ultrasonic transducer 121.

[0068] According to some embodiments of the present application, please refer to Figure 1 The laser particle size analysis pre-processing device 100 also includes a controller 150; the controller 150 includes a control panel 151 and a processor 152, the control panel 151 is used to receive input instructions, the processor 152 is used to process the input instructions and send control instructions to one or more of the stirring component 110, the ultrasonic component 120 and the lifting component 130.

[0069] The laser particle size analysis pre-processing device 100 can be controlled by PLC, and human-computer interaction can be achieved through control component buttons. The controller 150 can be a microcontroller (MCU) or a digital signal processor (DSP). The controller 150 includes a control panel 151 and a processor 152.

[0070] The control panel 151 can be fixed on the second carrier 140. The control panel 151 is used to receive input instructions. The control panel 151 is equipped with buttons with multiple functions, such as a start button 1511, a reset button 1512, a stirring speed control valve 1513, and an emergency stop button 1514. The processor 152 can be installed in the cavity inside the second carrier 140. The processor 152 is used to process input instructions, such as a central processing unit. The processor 152 can process the received signal or data according to the set target or instruction. For example, a control instruction is issued to one or more of the stirring component 110, the ultrasonic component 120, and the lifting component 130.

[0071] The start button 1511 can be understood as a one-button start function. When the "start" button is pressed, the lifting component 130 drives the stirring rod 112 to extend into the container 1222, and the stirring component 110 and the ultrasonic component 120 are turned on at the same time to stir according to the predetermined mode. After the stirring is completed, the lifting component 130 drives the stirring rod 112 to rise and leave, and the stirring component 110 and the ultrasonic component 120 stop running. The lifting height of the stirring rod 112 can be set in advance, and no adjustment is required in the working state. The full automation of automatic ultrasonic stirring is realized.

[0072] The reset button 1512 can be understood as a reset function. When the "reset" button is pressed, the lifting assembly 130 drives the stirring rod 112 to rise and leave, the lifting assembly 130 returns to the initial position, and the stirring assembly 110 and the ultrasonic assembly 120 stop running.

[0073] Speed ​​control valve 1513, when rotating the "speed control valve", the stirring speed can be controlled. The user can control the stirring speed according to the needs to meet the needs of pre-treatment stirring of different materials.

[0074] The emergency stop button 1514 can be understood as an emergency stop function. When the "emergency stop button" is pressed, the entire machine stops working, which can improve the safety performance of the equipment and respond quickly to sudden equipment failures and abnormal conditions.

[0075] It should be noted that the stirring speed and stirring time can be set in advance, and the laser particle size analysis pre-processing device 100 can operate according to the preset information.

[0076] By adding a controller 150 and setting a corresponding control panel 151 and a processor 152, the automation requirements are met. The entire laser particle size analysis pre-processing device can be controlled through the control panel 151, and manual operation is easier.

[0077] According to some embodiments of the present application, please refer to Figure 1 The laser particle size analysis pre-processing device 100 also includes an alarm 160 , which is connected to the controller 150 .

[0078] The alarm 160 is a device that can issue warning information to remind operators. The alarm 160 can be a sound-emitting device, such as a siren; the alarm 160 can be a light-emitting device, such as an alarm light; the alarm 160 can also be a combination of a sound-emitting device and a light-emitting device.

[0079] The alarm 160 is connected to the controller 150, and the connection here is a signal connection. For example, after the stirring component 110 and the ultrasonic component 120 complete the vibration stirring, the controller 150 sends a control signal to the alarm 160, and the alarm 160 sends an alarm reminder based on the control signal so that the operator can perform the next operation.

[0080] The alarm 160 is installed on the laser particle size analysis preprocessing device 100, and the alarm 160 is connected to the controller 150 by signal. According to the actual situation, the alarm 160 can send out an alarm message to remind the operator in time, improve the safety performance, improve the test efficiency, and avoid the secondary agglomeration of the sample.

[0081] According to some embodiments of the present application, please refer to Figure 4 , Figure 4 The schematic diagram of the structure of the detection device of some embodiments of the present application. The embodiment of the second aspect of the present application provides a battery slurry detection device 10, the battery slurry detection device 10 comprises the above-mentioned laser particle size analysis pre-treatment device 100 and laser particle size analyzer 200, the laser particle size analysis pre-treatment device 100 is used to pre-treat the battery slurry, and the laser particle size analyzer 200 is used to detect the particle size distribution of the pre-treated battery slurry.

[0082] See also Figure 1 An embodiment of the present application provides a laser particle size analysis pre-processing device 100, which includes a stirring component 110, an ultrasonic component 120, a lifting component 130, a second supporting platform 140, a controller 150 and an alarm 160.

[0083] The stirring assembly 110 is mounted and fixed on the second carrier platform 140, and the bottom of the second carrier platform 140 has a plurality of vibration-damping feet 141 arranged at intervals. The stirring assembly 110 specifically includes a first carrier platform 113, a rotating motor 1111, a driving gear 11123 and a plurality of driven gears 11124, the rotating motor 1111 is fixedly mounted on the first carrier platform 113, the driving gear 11123 and the plurality of driven gears 11124 are arranged inside the first carrier platform 113, the center hole of the driving gear 11123 is connected to the output shaft of the rotating motor 1111, the plurality of driven gears 11124 are arranged at intervals along the circumference of the driving gear 11123 and mesh with the driving gear 11123, and the center holes of the plurality of driven gears 11124 are respectively connected to the plurality of stirring rods 112 in a one-to-one correspondence.

[0084] The ultrasonic component 120 is also installed on the second supporting platform 140. The ultrasonic component 120 specifically includes an ultrasonic transducer 121 and a box body 122. The box body 122 has a accommodating cavity 1221. The accommodating cavity 1221 is provided with a plurality of containers 1222 corresponding to the plurality of stirring rods 112 one by one. The plurality of containers 1222 contain slurry to be processed. The ultrasonic transducer 121 applies ultrasonic vibration to the slurry in the plurality of containers 1222.

[0085] The lifting assembly 130 is also installed on the second supporting platform 140. The lifting assembly 130 specifically includes a column 131, a connecting plate 132 and a second driving unit 133. The second driving unit 133 is fixed on the column 131. Part of the connecting plate 132 is movably connected to the column 131, and part of the connecting plate 132 is fixedly connected to the first supporting platform 113. The second driving unit 133 drives the connecting plate 132 to move up and down in the vertical direction along the column 131 so that multiple stirring rods 112 can enter and exit the corresponding containers 1222.

[0086] The controller 150 includes a control panel 151 and a processor 152. The control panel 151 and the alarm 160 are installed on the second supporting platform 140. The processor 152 is installed inside the second supporting platform 140. The control panel 151 has multiple control buttons. The control panel 151 is used to receive input instructions, and the processor 152 is used to process the input instructions and send control instructions to one or more of the stirring component 110, the ultrasonic component 120 and the lifting component 130.

[0087] The stirring rod 112 includes a stirring rod 1121 and a stirring head 1122 , and the stirring head 1122 is connected to the end of the stirring rod 1121 ; along a direction perpendicular to the extending direction of the stirring rod 1121 , the maximum size of the stirring head 1122 is larger than the size of the stirring rod 1121 .

[0088] Exemplarily, the stirring assembly 110 is provided with four stirring rods 112, which correspond to the four containers 1222 in the box 122 of the ultrasonic assembly 120 respectively. By starting the button 1511, the lifting assembly 130 drives the stirring rod 112 to automatically lower the stirring position preset in the container 1222. The stirring assembly 110 and the ultrasonic assembly 120 are started at the same time. The stirring assembly 110 can stir according to the pre-set stirring mode. For example, the stirring time of the stirring rod 112 can be set to stir at the 20th second, the 140th second, and the 260th second after being turned on, and the single stirring time is 15 seconds. After the stirring is completed, the lifting assembly 130 drives the stirring rod 112 to reset, the stirring assembly 110 and the ultrasonic assembly 120 stop, the operation indicator light is turned off, and the alarm 160 issues a reminder.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A laser particle size analysis pre-processing device, characterized in that: include: A stirring assembly, comprising a first driving unit, and a plurality of stirring rods connected to the first driving unit; An ultrasonic assembly, comprising an ultrasonic transducer and a box, wherein the box has a containing cavity, wherein a plurality of containers corresponding to the plurality of stirring rods are arranged in the containing cavity, wherein the plurality of containers are used to contain slurry to be processed, and the ultrasonic transducer is used to apply ultrasonic vibration to the slurry in the plurality of containers; Wherein, the plurality of stirring rods are configured to rotate synchronously under the drive of the first driving unit to stir the slurry in the corresponding containers respectively.

2. The laser particle size analysis pre-processing device according to claim 1, characterized in that: Also includes: A lifting assembly is connected to the stirring assembly, and the lifting assembly is configured to drive the stirring assembly to move in a vertical direction so that the plurality of stirring rods enter and exit corresponding containers.

3. The laser particle size analysis pre-processing device according to claim 2, characterized in that: The lifting assembly comprises: Column; A connecting plate, movably connected to the column, and the connecting plate is used to be fixedly connected to the stirring assembly; The second driving unit is fixedly connected to the column, and the second driving unit is used to drive the connecting plate to move up and down along the column.

4. The laser particle size analysis pre-processing device according to any one of claims 1 to 3, characterized in that: The stirring assembly further comprises a first carrying platform, and wherein, The first driving unit comprises: A rotating motor, fixedly mounted on the first bearing platform; A transmission member is arranged inside the first bearing platform, and the transmission member includes an input end and an output end, the input end is connected to the output shaft of the rotating motor, and the output end is connected to the plurality of stirring rods.

5. The laser particle size analysis pre-processing device according to claim 4, characterized in that: The transmission member comprises: A driving gear, the center hole of which serves as the input end of the transmission member and is connected to the output shaft of the rotating motor; A plurality of driven gears are arranged at intervals along the circumference of the driving gear and mesh with the driving gear; the central holes of the plurality of driven gears are used as output ends of the transmission member and are respectively connected to the plurality of stirring rods one by one.

6. The laser particle size analysis pre-processing device according to any one of claims 1 to 3, characterized in that: The stirring rod comprises: stirring rod, and A stirring head is connected to the end of the stirring rod; along a direction perpendicular to the extending direction of the stirring rod, the maximum size of the stirring head is greater than the size of the stirring rod.

7. The laser particle size analysis pre-processing device according to any one of claims 1 to 3, characterized in that: Also includes: A second carrying platform, wherein the top surface of the second carrying platform is used to carry the ultrasonic component, and the bottom of the second carrying platform has a plurality of vibration-damping feet arranged at intervals.

8. The laser particle size analysis pre-processing device according to claim 2 or 3, characterized in that: Also includes: Controller; The controller includes a control panel and a processor; The control panel is used to receive input instructions, and the processor is used to process the input instructions and issue control instructions to one or more of the stirring component, the ultrasonic component and the lifting component.

9. The laser particle size analysis pre-processing device according to claim 8, characterized in that: Also includes: An alarm is connected with the controller.

10. A battery slurry detection device, characterized in that: include: The laser particle size analysis pre-processing device according to any one of claims 1 to 9, wherein the laser particle size analysis pre-processing device is used to pre-process battery slurry, and Laser particle size analyzer is used to detect the particle size distribution of pre-treated battery slurry.

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