Stirring device and battery manufacturing equipment

Abstract

The utility model discloses a stirring device and battery manufacturing equipment, which can improve the slurry homogenizing efficiency so as to improve the performance of an electrode plate. The stirring device comprises a stirring barrel and a slurry stirring assembly. The stirring barrel is used for containing slurry and provided with a feeding port and a discharging port. The slurry stirring assembly is arranged in the stirring barrel and comprises a stirring paddle and a splash-proof cover. The stirring paddle can rotate and stir slurry in the stirring barrel, the splash-proof cover is arranged outside the stirring paddle, and a flow guide groove for guiding the flowing direction of the slurry is formed in the splash-proof cover. According to the stirring device and the battery manufacturing equipment, the slurry homogenizing efficiency and uniformity can be improved, so that the battery production efficiency is improved, and the performance of an electrode plate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery, in particular to a stirring device and a battery manufacturing equipment. BACKGROUND

[0002] Batteries are widely used in various electronic devices, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships, electric toy cars, electric toy planes, electric toy ships, electric tools and energy storage systems, etc.

[0003] In the production process of battery monomer, the slurry composed of mutually insoluble substances needs to be homogenized. The homogenization degree of slurry stirring has a great influence on the performance of battery monomer. Therefore, how to improve the homogenization effect is one of the problems in the field. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides a stirring device and a battery manufacturing equipment, which can improve the efficiency and uniformity of slurry homogenization, thereby improving the performance of electrode sheet.

[0005] In the first aspect, the present application provides a stirring device, which comprises a stirring barrel and a slurry mixing assembly. The stirring barrel is used to contain slurry, and the stirring barrel has a feeding port and a discharging port. The slurry mixing assembly is arranged in the stirring barrel, and the slurry mixing assembly comprises a stirring paddle and a splash guard. The stirring paddle can rotate and stir the slurry in the stirring barrel, and the splash guard is arranged outside the stirring paddle, and the splash guard is provided with a flow guide groove for guiding the flow direction of the slurry.

[0006] In the technical scheme of the present application, the stirring barrel is arranged to contain various raw materials that need to be homogenized, thereby providing a stable environment for the homogenization process and reducing the pollution of slurry caused by external impurities. The stirring paddle is arranged on the slurry mixing assembly, which can fully stir the slurry in the stirring barrel and improve the uniformity of slurry stirring. In particular, the splash guard is arranged outside the stirring paddle, and the flow guide groove can guide the flow direction of the slurry, so that the slurry forms a vortex, the vortex drives the material at the bottom to move to the upper layer and mix with other materials, thereby improving the flowability of the slurry, improving the efficiency of stirring, and improving the homogenization effect of the slurry, thereby improving the performance of the electrode sheet and the production efficiency of the battery.

[0007] In some embodiments, the slurry mixing assembly comprises a rotating shaft and a plurality of paddles. The rotating shaft can rotate around the axis, and the plurality of paddles are arranged along the circumference of the rotating shaft. The paddles are inclined relative to the axis of the rotating shaft in a first direction, and the first direction is clockwise or counterclockwise. In the above structure, the rotating shaft is arranged to drive the paddles to rotate and mix the slurry in the stirring barrel. The plurality of paddles can improve the efficiency and uniformity of stirring. The paddles are inclined relative to the rotating shaft to form a large vortex in the slurry, which drives the slurry in different directions around the paddles, expands the stirring range, and improves the stirring effect.

[0008] In some embodiments, the splash-proof cover comprises a cover and an extension. The cover has a central hole, and the rotating shaft is rotatably connected to the cover through the central hole. The extension is bent along the edge of the cover towards the direction of the stirring paddle. The extension is arranged towards the end of the paddle away from the rotating shaft, and a plurality of guide grooves are arranged on the extension in sequence along the circumference of the rotating shaft. In the above structure, by arranging the cover and the extension, the splashing of the slurry upwards and around the paddle during stirring is reduced, and the formation of vortex during stirring is controlled. By arranging a plurality of guide grooves on the extension, the flow direction of the slurry around the paddle is guided, and a vortex upward from the bottom of the barrel is formed, driving the slurry at the bottom wall to flow, further improving the efficiency and uniformity of stirring.

[0009] In some embodiments, the guide groove extends in a second direction relative to the axial direction of the rotating shaft, the second direction being counterclockwise or clockwise, and the second direction being opposite to the first direction. In the above structure, the guide groove is arranged to be different from the inclination direction of the blade, and the groove wall of the guide groove and the blade form a strong shearing effect on the slurry, achieving a homogenization effect through shearing emulsification.

[0010] In some embodiments, the stirring assembly further comprises a connecting ring and a connecting pin. The connecting ring is sleeved outside the rotating shaft, and a plurality of paddles are connected to the connecting ring. The surface of the connecting ring facing the rotating shaft is concave to form a first recess, and the surface of the rotating shaft facing the connecting ring is correspondingly provided with a second recess. The connecting pin is arranged in the first recess and the second recess to connect the connecting ring and the rotating shaft, and the connecting pin is used to limit the movement of the connecting ring relative to the rotating shaft. In the above structure, the first recess and the second recess accommodate the connecting pin, which does not occupy additional space to connect the rotating shaft and the connecting ring, and limits the rotation of the connecting ring relative to the rotating shaft. The rotating shaft can transmit power to the connecting ring, and the connecting ring drives the paddle to rotate for stirring.

[0011] In some embodiments, the stirring device further comprises a fixed support, and the fixed support comprises a bottom plate, a top plate and a side plate. The bottom plate is used to support the stirring barrel, the top plate is arranged opposite to the bottom plate, the side plate is connected between the bottom plate and the top plate, and the splash-proof cover is connected to the top plate. In the above structure, the stirring barrel is supported by arranging the fixed support, and the stability during stirring is improved. The splash-proof cover is connected to the top plate, and the splash-proof cover can be fixed relative to the rotating shaft during stirring, improving the splash-proof effect. Moreover, the paddle rotates relative to the splash-proof cover during stirring, and the paddle and the guide groove can form water vortex more quickly, making the slurry flow in the stirring barrel, reducing the bottom deposition of the slurry, and achieving a homogenization effect through shearing emulsification of the groove wall of the guide groove and the edge of the blade.

[0012] In some embodiments, the stirring device further comprises a driving motor connected with the rotating shaft for driving the rotating shaft to rotate, the driving motor is arranged on the side of the top plate away from the bottom plate, and the rotating shaft penetrates through the top plate and is connected with the driving motor. In the above structure, the driving motor is arranged to provide stable power for the rotation of the stirring paddle, and the stirring speed is accurately controlled by controlling the rotating speed and direction, thereby improving the stirring efficiency and uniformity. The driving motor is arranged on the top plate to provide a stable support for the driving motor. Moreover, the distance between the rotating shaft and the driving motor is shortened, facilitating assembly, reducing transmission loss and improving energy utilization.

[0013] In some embodiments, the stirring device further comprises a lifting assembly, the lifting assembly comprising a threaded rod and a moving plate. The two ends of the threaded rod are connected with the top plate and the bottom plate respectively, and the moving plate has a threaded hole. The threaded rod penetrates through the threaded hole and is connected with the moving plate, and the stirring barrel is arranged on the moving plate. The threaded rod rotates to drive the moving plate to move along the threaded rod and drive the moving plate to move relative to the top plate. In the above structure, the distance between the stirring barrel and the rotating shaft can be adjusted by arranging the threaded rod and the moving plate, so as to adjust the distance between the rotating shaft and the bottom wall of the stirring barrel, thereby facilitating the stirring of the slurry at different liquid levels in the stirring barrel and improving the uniformity of the stirring.

[0014] In some embodiments, the lifting assembly further comprises a fixing member and a connecting member, the fixing member comprising a fixing plate and a mounting plate connected with each other, the fixing plate abutting against the outer wall of the stirring barrel, and the mounting plate being provided with a fixing hole, and the connecting member penetrating through the fixing hole and being connected with the moving plate. In the above structure, the fixing member and the connecting member are arranged to connect the moving plate of the stirring barrel, thereby reducing the risk of the stirring barrel sliding on the moving plate during the moving process and improving the stability of the moving process.

[0015] In some embodiments, a temperature sensor is further arranged on the stirring barrel, and the temperature sensor is used for detecting the temperature of the slurry in the stirring barrel. In the above structure, the temperature sensor is arranged to monitor the temperature of the slurry in the stirring barrel, thereby reducing the risk of the slurry being broken or agglomerated due to the temperature exceeding a threshold value and improving the stability during the stirring process.

[0016] In some embodiments, the stirring device further comprises a heat exchange assembly arranged on the outer periphery of the stirring barrel, and the heat exchange assembly is provided with a heat exchange flow channel. In the above structure, the heat exchange assembly is arranged to control the stability of the slurry, and the slurry with a temperature exceeding a preset value is subjected to heat exchange, thereby reducing the risk of the slurry being broken or agglomerated due to the temperature exceeding a threshold value.

[0017] In some embodiments, the stirring device further comprises a control assembly electrically connected with the driving motor and the temperature sensor. In the above structure, the control assembly is arranged to control the stirring speed, thereby improving the accuracy of the control and the stability of the stirring process.

[0018] In some embodiments, the stirring barrel is provided with an observation window for observing the internal slurry. By providing the observation window, the condition of the slurry can be monitored in real time by the human eye or a camera device, thereby improving the control efficiency of the stirring process.

[0019] In a second aspect, the application provides a battery manufacturing device comprising the stirring device in the above embodiments.

[0020] The above description is only a summary of the technical solutions of the application. In order to enable one skilled in the art to better understand the technical means of the application, the application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0021] The features, advantages, and technical effects of the exemplary embodiments of the application will be described below with reference to the accompanying drawings.

[0022] Figure 1 A disassembled structural schematic diagram of a battery cell of some embodiments of the application;

[0023] Figure 2 A structural schematic diagram of a stirring device of some embodiments of the application;

[0024] Figure 3 A disassembled structural schematic diagram of a slurry stirring assembly of some embodiments of the application;

[0025] Figure 4 A disassembled structural schematic diagram of a slurry stirring assembly of some embodiments of the application;

[0026] Figure 5 A structural schematic diagram of a stirring device of some embodiments of the application;

[0027] Figure 6 A structural schematic diagram of a stirring device of some embodiments of the application;

[0028] Figure 7 A structural schematic diagram of a stirring device of some embodiments of the application; Figure 6 An enlarged structural schematic diagram of part A in FIG. 6.

[0029] DETAILED DESCRIPTION OF DRAWINGS

[0030] 1, battery monomer; 10, electrode assembly; 20, shell; 30, end cover; 40, housing; 2, stirring device; 201, stirring barrel; 202, stirring assembly; 203, inlet; 204, outlet; 205, stirring paddle; 206, splash guard; 207, rotating shaft; 208, flow guide groove; 209, paddle; 210, upper cover; 211, extension; 212, connecting ring; 213, connecting pin; 214, mounting; 215, fixing bolt; 216, bottom plate; 217, top plate; 218, side plate; 219, drive motor; 220, threaded rod; 221, moving plate; 222, fixed plate; 223, connecting piece; 224, mounting plate; 225, temperature sensor; 226, control assembly. DETAILED DESCRIPTION

[0031] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0033] 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 "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0034] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] 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, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0036] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0037] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0038] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing", and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0040] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed description of the same components is omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are only exemplary and should not constitute any limitation on the present application.

[0041] Battery apparatuses are widely used in various electronic devices, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships, electric toy cars, electric toy planes, electric toy ships, electric tools, energy storage systems, and the like. The battery apparatus mentioned in the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, in parallel, or in a mixed connection through a busbar component.

[0042] Exemplarily, the battery cell can be the smallest unit constituting the battery apparatus.

[0043] Figure 1 The exploded structural diagram of the battery cell provided by some embodiments of the present application is shown.

[0044] As shown in Figure 1 In some embodiments, the battery cell 1 includes a housing 40 and an electrode assembly 10 contained in the housing 40. The housing 40 can include an end cap 30 and a case 20.

[0045] The electrode assembly 10 includes a positive electrode tab and a negative electrode tab. During the charging and discharging process of the battery cell 1, active ions (such as lithium ions) are inserted and extracted between the positive electrode and the negative electrode. Optionally, the electrode assembly 10 further includes a separator disposed between the positive electrode and the negative electrode, which can reduce the risk of short circuit between the positive electrode and the negative electrode, while allowing the active ions to pass through. The battery cell 1 further includes an electrolyte contained in the housing 40. The electrolyte plays a role in conducting ions between the positive and negative electrodes.

[0046] Exemplarily, the positive electrode tab includes a positive electrode current collector and an active material layer coated on the surface of the positive electrode current collector, and the negative electrode tab includes a negative electrode current collector and a negative electrode active material layer coated on the surface of the negative electrode current collector.

[0047] The active material layer in the electrode tab contains a plurality of substances, some of which are not mutually soluble. In order to ensure uniformity of coating, the active material slurry needs to be homogenized before coating. Ultrasonic homogenization or stirring homogenization can be used. During stirring homogenization, some materials in the slurry are heavy and tend to sink to the bottom, which cannot be effectively homogenized, resulting in low stirring efficiency and poor homogenization effect.

[0048] Based on the above problems, the embodiment of the present application provides a stirring device. The stirring device comprises a stirring barrel and a slurry mixing assembly. The stirring barrel is used for containing slurry. The stirring barrel has a feeding port and a discharging port. The slurry mixing assembly is arranged in the stirring barrel. The slurry mixing assembly comprises a stirring paddle and a splash-proof cover. The stirring paddle is rotatable and used for stirring the slurry in the stirring barrel. The splash-proof cover is arranged outside the stirring paddle. The splash-proof cover is provided with a flow guide groove used for guiding the flow direction of the slurry.

[0049] Please refer to Figures 2 to 4 , Figure 2 The structure diagram of the stirring device of some embodiments of the present application is shown in Figure 3 The exploded structure diagram of the slurry mixing assembly of some embodiments of the present application is shown in Figure 4 The exploded structure diagram of the slurry mixing assembly of some embodiments of the present application is shown in

[0050] As shown in the drawings, the embodiment of the present application provides a stirring device 2. The stirring device 2 comprises a stirring barrel 201 and a slurry mixing assembly 202. The stirring barrel is used for containing slurry. The stirring barrel 201 has a feeding port 203 and a discharging port 204. The slurry mixing assembly 202 is arranged in the stirring barrel 201. The slurry mixing assembly 202 comprises a stirring paddle 205 and a splash-proof cover 206. The stirring paddle 205 is rotatable and used for stirring the slurry in the stirring barrel 201. The splash-proof cover 206 is arranged outside the stirring paddle 205. The splash-proof cover 206 is provided with a flow guide groove 208 used for guiding the flow direction of the slurry.

[0051] The stirring barrel 201 can use a barrel body with a cylindrical cavity inside, so as to facilitate cleaning. The end of the barrel body can be provided with a cover plate, so as to facilitate feeding and observation. The barrel body can be manufactured by using materials with corrosion resistance, high temperature resistance and certain structural strength. For example, materials such as stainless steel, polypropylene, polyethylene and aluminum alloy. An observation window can be arranged on the cover plate. Glass material can be used at the window. Alternatively, the cover plate can be manufactured by using transparent material to increase the observation area. The feeding port 203 can be used for feeding materials. The discharging port 204 can be used for discharging the slurry after completion of stirring.

[0052] The slurry mixing assembly 202 rotates in the stirring barrel 201 to drive the slurry in the barrel to be stirred. The axial direction of the stirring paddle can be parallel to the height direction of the stirring barrel 201, so as to improve the uniformity of stirring.

[0053] The splash-proof cover 206 is arranged outside the stirring paddle. The splash-proof cover 206 has a cavity inside. The splash-proof cover 206 is also provided with an opening communicating with the cavity. The stirring paddle 205 is contained in the cavity. The opening is arranged towards the bottom of the stirring barrel 201, so as to facilitate the slurry at the bottom to flow into the cavity from the opening.

[0054] The side wall of the stirring paddle 205 is provided with a through flow guide groove 208. The flow guide groove 208 is in communication with the inner cavity. The flow guide groove 208 is through the thickness direction of the splash-proof cover 206, and is in strip shape, which can facilitate the cutting of the slurry to improve the dispersion performance of the slurry.

[0055] In the technical scheme of the embodiment of the present application, the stirring barrel 201 is arranged to accommodate various raw materials that need to be homogenized, thereby providing a stable environment for the homogenization process and reducing the pollution of the slurry caused by external impurities. The stirring assembly is provided with the stirring paddle 205, which can fully stir the slurry in the stirring barrel 201 and improve the uniformity of the slurry. In particular, the splash-proof cover 206 is arranged outside the stirring barrel, and the flow guide groove 208 can guide the flow direction of the slurry, so that the slurry forms a vortex, the vortex drives the material at the bottom to move to the upper layer and mix with other materials, thereby improving the fluidity of the slurry, improving the efficiency of stirring, and improving the homogenization effect of the slurry.

[0056] It can be understood that the stirring device 2 provided by the embodiment of the present application can also be applied to other processes that need to be homogenized and emulsified, such as the stirring of flavorings in the food industry, the stirring and homogenization of oil-water mixtures in the cosmetics industry, the homogenization of paste medicines in the pharmaceutical industry, and the production of chemical products such as adhesives, surfactants, etc. in the chemical industry.

[0057] In some embodiments of the present application, the stirring assembly 202 includes a rotating shaft 207 and a plurality of paddle blades 209. The rotating shaft 207 can rotate around the axis, and the plurality of paddle blades 209 are arranged along the circumference of the rotating shaft 207. The paddle blades 209 are inclined relative to the axis of the rotating shaft 207 in a first direction, which is either clockwise or counterclockwise.

[0058] The rotating shaft 207 is the core component of the stirring assembly 202, which is responsible for transmitting power to enable the paddle blades 209 to rotate around the axis. The design of the rotating shaft 207 needs to ensure that it has sufficient strength and rigidity to withstand the torque and bending moment generated during stirring. At the same time, the surface of the rotating shaft 207 should be smooth to reduce friction and wear between the rotating shaft 207 and the slurry.

[0059] The plurality of paddle blades 209 are arranged along the circumference of the rotating shaft 207 to ensure that the slurry is fully stirred in the stirring barrel 201. The paddle blades 209 are inclined relative to the axis of the rotating shaft 207 in a first direction (clockwise or counterclockwise), which not only helps to increase the contact area between the paddle blades 209 and the slurry, but also forms a larger vortex in the slurry. When the inclined paddle blades 209 rotate, they can drive the slurry in the stirring barrel 201 to form a vortex. The vortex not only helps to bring the slurry at the bottom of the stirring barrel 201 to the upper layer, but also promotes the mixing of the slurry in different directions, thereby expanding the stirring range, improving the efficiency and uniformity of the stirring.

[0060] Optionally, the number, shape, angle of inclination of the paddles 209 and the rotation speed of the shaft 207 can be adjusted according to the characteristics of the slurry and the stirring requirements.

[0061] In the above structure, the shaft 207 is arranged to drive the rotation of the paddles 209 to mix the slurry in the stirring barrel 201. The plurality of paddles 209 can improve the efficiency and uniformity of stirring. The paddles 209 are inclined relative to the shaft 207 to form a large vortex in the slurry, drive the slurry in different directions around the paddles 209, expand the stirring range, and improve the stirring effect.

[0062] As shown in FIG. 2, in some embodiments of the present application, the splash-proof cover 206 includes an upper cover 210 and an extension 211. The upper cover 210 has a central hole through which the shaft 207 is rotatably connected to the upper cover 210. The extension 211 is bent along the edge of the upper cover 210 towards the direction of the stirring paddle 205. The extension 211 is arranged towards the end of the paddle 209 away from the shaft 207, and a plurality of guide grooves 208 are sequentially and spaced apart along the circumference of the shaft 207 on the extension 211. Figure 4 The upper cover 210 is located at the top of the stirring barrel 201. The upper cover 210 has a central hole through which the shaft 207 is rotatably connected to the upper cover 210. This design not only ensures the free rotation of the shaft 207, but also effectively prevents the slurry from splashing out of the top of the stirring barrel 201. The material of the upper cover 210 should have certain strength and rigidity to withstand the impact force that may occur during stirring. At the same time, its surface should be smooth to reduce the attachment and accumulation of slurry on the upper cover 210.

[0063] The extension 211 is bent along the edge of the upper cover 210 towards the direction of the stirring paddle 205. Its main function is to further block the splashing of the slurry during stirring. The extension 211 is arranged towards the end of the paddle 209 away from the shaft 207. This design can more effectively intercept the slurry that is thrown by the paddle 209 in all directions, further improving the vortex of the slurry.

[0064] A plurality of guide grooves 208 are sequentially and spaced apart along the circumference of the shaft 207 on the extension 211. The main function of these guide grooves 208 is to guide the flow direction of the slurry and promote the formation of the vortex. The arrangement of the guide grooves 208 can guide the slurry around the paddle 209 to the bottom of the stirring barrel 201, forming a vortex upward from the bottom of the barrel. This vortex not only helps to bring the slurry at the bottom of the stirring barrel 201 to the upper layer, but also promotes the mixing of the slurry in different directions, thereby further improving the efficiency and uniformity of stirring. The arrangement of the guide grooves 208 makes the flow of the slurry in the stirring barrel 201 more orderly and uniform, reducing the phenomenon of local over-concentration or over-dilution.

[0065] ​

[0066] In the above structure, by setting the upper cover 210 and the extension part 211, the splashing of the slurry upward and around the paddle 209 during stirring is reduced, and the formation of vortex during stirring is controlled. A plurality of flow guide grooves 208 are arranged on the extension part 211 to guide the flow direction of the slurry around the paddle 209, form a vortex upward from the bottom of the barrel, drive the slurry flow of the bottom wall, and further improve the efficiency and uniformity of stirring.

[0067] In some embodiments of the present application, the flow guide groove 208 extends obliquely relative to the axial direction of the rotating shaft 207 in a second direction, which is counterclockwise or clockwise, and the second direction is opposite to the first direction.

[0068] The flow guide groove 208 extends obliquely relative to the axial direction of the rotating shaft 207 in a second direction, and the second direction is opposite to the first direction (the inclination direction of the blade), so that the groove wall of the flow guide groove 208 forms a certain angle with the blade during stirring. When the blade rotates, the slurry is pushed by the blade and flows along the groove wall of the flow guide groove 208. Because the inclination direction of the flow guide groove 208 is opposite to that of the blade, the slurry will be subjected to double shear action from the blade and the groove wall during flow. Shear refers to the friction between two surfaces in relative motion, which can break down large particles or agglomerates in the slurry to make them disperse into smaller particles, thereby achieving homogenization. During stirring, the shear formed by the blade and the groove wall of the flow guide groove 208 can accelerate the emulsification and homogenization process of the slurry. This shear not only improves the stirring efficiency, but also improves the flowability and stability of the slurry.

[0069] Through the synergistic effect of the blade and the flow guide groove 208, the slurry is subjected to strong shear and emulsification during stirring, thereby achieving better homogenization effect. The inclined flow guide groove 208 optimizes the flow path of the slurry, reduces the energy consumption and noise during stirring. At the same time, the shear accelerates the emulsification and homogenization process of the slurry, and improves the stirring efficiency.

[0070] For example, the paddle 209 is inclined 45° clockwise along the axial direction of the rotating shaft 207, and the flow guide groove 208 is inclined 45° counterclockwise along the axial direction of the rotating shaft 207. The extension direction of the flow guide groove 208 is perpendicular to the paddle 209.

[0071] In the above structure, the flow guide groove 208 is arranged to be different from the inclination direction of the blade, and the groove wall of the flow guide groove 208 and the blade form a strong shear on the slurry, and the homogenization effect is achieved through shear emulsification.

[0072] In some embodiments of the present application, the stirring assembly 202 further comprises a connecting ring 212 and a connecting pin 213. The connecting ring 212 is sleeved outside the rotating shaft 207, and the plurality of paddles 209 are connected to the connecting ring 212. The surface of the connecting ring 212 facing the rotating shaft 207 is concave to form a first recess, and the surface of the rotating shaft 207 facing the connecting ring 212 is correspondingly provided with a second recess. The connecting pin 213 is arranged in the first recess and the second recess to connect the connecting ring 212 and the rotating shaft 207, and the connecting pin 213 is used to limit the movement of the connecting ring 212 relative to the rotating shaft 207.

[0073] The rotating shaft 207 is a power transmission component of the stirring assembly 202, and the connecting ring 212 serves as a connecting component of the paddles 209. Through the connecting ring 212, the plurality of paddles 209 can be stably connected to the rotating shaft 207 to form an integrated stirring structure. The connecting ring 212 is sleeved outside the rotating shaft 207, and the surface of the connecting ring 212 facing the rotating shaft 207 is concave to form a first recess. Correspondingly, the surface of the rotating shaft 207 facing the connecting ring 212 is correspondingly provided with a second recess. This design enables the connecting ring 212 and the rotating shaft 207 to be closely matched, providing space for the insertion of the connecting pin 213.

[0074] The connecting pin 213 is a connecting component between the connecting ring 212 and the rotating shaft 207, which is responsible for firmly connecting the two together to prevent relative movement or rotation during stirring. The connecting pin 213 is arranged in the first recess and the second recess, and by being inserted and fixed in the two recesses, a stable connection between the connecting ring 212 and the rotating shaft 207 is achieved. This connection method is not only simple and reliable, but also does not occupy additional space.

[0075] When the rotating shaft 207 is driven by external power, it will transmit power to the connecting ring 212 through the connecting pin 213. Since the connecting ring 212 and the rotating shaft 207 are firmly connected together, the connecting ring 212 can rotate with the rotating shaft 207. The rotation of the connecting ring 212 will drive the plurality of paddles 209 on it to rotate together, thereby achieving the purpose of stirring. This design not only ensures the effective transmission of power, but also improves the efficiency and uniformity of stirring.

[0076] In the above structure, by arranging the first recess and the second recess to accommodate the connecting pin 213, the rotating shaft 207 and the connecting ring 212 are connected without occupying additional space, and the rotation of the connecting ring 212 relative to the rotating shaft 207 is limited. The rotating shaft 207 can transmit power to the connecting ring 212, and the connecting ring 212 drives the paddles 209 to rotate for stirring.

[0077] In some optional embodiments, the mixing assembly 202 further includes a mounting member 214 and a fixing bolt 215. The mounting member 214 has a threaded hole. A mounting groove is provided on the end face of the rotating shaft 207. The fixing bolt 215 passes through the threaded hole and is installed into the mounting groove to fix the mounting member 214 to the end of the rotating shaft 207. The mounting member 214 restricts the movement of the connecting ring 212 along the circumference of the rotating shaft 207. This structure improves the stability of the mounting ring and the impeller 209 during the mixing process and reduces the risk of the mounting ring detaching from the rotating shaft 207 during mixing.

[0078] like Figure 5 As shown, in some embodiments of this application, the stirring device 2 further includes a fixed support, which includes a bottom plate 216, a top plate 217, and a side plate 218. The bottom plate 216 is used to support the stirring tank 201, the top plate 217 is disposed opposite to the bottom plate 216, the side plate 218 is connected between the bottom plate 216 and the top plate 217, and the splash guard 206 is connected to the top plate 217.

[0079] The fixed support bracket serves as the supporting structure for the mixing device 2. Its main function is to provide stable support, ensuring that the mixing tank 201 does not shake or tip over during mixing. The fixed support bracket includes a bottom plate 216, a top plate 217, and side plates 218. The bottom plate 216 directly supports the bottom of the mixing tank 201, while the top plate 217 is positioned opposite the bottom plate 216, providing a connection point for the splash guard 206. The side plates 218 connect the bottom plate 216 and the top plate 217, forming a stable frame structure.

[0080] The main function of the splash guard 206 is to prevent the slurry from splashing upwards during mixing, while optimizing the formation of vortices, improving mixing efficiency and slurry uniformity. The splash guard 206 is connected to the top plate 217, a design that ensures that the splash guard 206 remains stationary relative to the rotating shaft 207 during mixing. This fixing method helps improve the splash prevention effect and reduce slurry splashing.

[0081] Supported by a fixed bracket, the mixing tank 201 remains stable during mixing, preventing uneven mixing caused by shaking or tipping. The splash guard 206 effectively prevents upward splashing of the slurry during mixing, keeping the slurry inside the mixing tank 201 clean and tidy. During mixing, the rotation of the impeller 209 relative to the splash guard 206 helps the impeller 209 and the guide channel 208 to form water vortices more quickly. The formation of vortices promotes the flow of the slurry within the mixing tank 201, reducing slurry deposition and stratification. The walls of the guide channel 208 and the edges of the blades exert a strong shearing effect on the slurry during mixing. This shearing effect helps accelerate the emulsification and homogenization process of the slurry, improving the mixing effect and the uniformity of the slurry.

[0082] The structure described above supports the stirring barrel 201 through the fixed support, improving the stability of the stirring process. The splash-proof cover 206 is connected to the top plate 217, and during the stirring process, the splash-proof cover 206 can be fixed relative to the rotating shaft 207, improving the splash-proof effect. Moreover, during the stirring process, the paddle 209 rotates relative to the splash-proof cover 206, and the paddle 209 and the flow guide groove 208 can form water vortex more quickly, making the slurry flow in the stirring barrel 201, reducing the slurry bottom, and the slot wall of the flow guide groove 208 and the edge of the blade perform shear emulsification, achieving homogenization effect.

[0083] In some embodiments of the present application, the stirring device 2 further comprises a driving motor 219 connected with the rotating shaft 207 for driving the rotating shaft 207 to rotate. The driving motor 219 is arranged on the side of the top plate 217 away from the bottom plate 216, and the rotating shaft 207 penetrates through the top plate 217 and is connected with the driving motor 219.

[0084] The driving motor 219 is a power component of the stirring device 2, which is responsible for providing stable rotary driving force for the rotating shaft 207, so that the stirring slurry can rotate according to the predetermined speed and direction. By adjusting the speed of the driving motor 219, the stirring speed can be accurately controlled, thereby meeting the requirements of different stirring tasks. This speed control helps to improve the stirring efficiency and the uniformity of the slurry.

[0085] The driving motor 219 is arranged on the side of the top plate 217 away from the bottom plate 216, which not only provides a stable support for the driving motor 219, but also optimizes the stability and compactness of the overall structure. The rotating shaft 207 penetrates through the top plate 217 and is connected with the driving motor 219, which simplifies the transmission structure, shortens the distance between the rotating shaft 207 and the driving motor 219, thereby reducing transmission loss and improving energy utilization.

[0086] Arranging the driving motor 219 on the top plate 217 makes the assembly process of the entire stirring device 2 more convenient and efficient. Since the distance between the rotating shaft 207 and the driving motor 219 is shortened, the energy loss in the transmission process is reduced, and the overall transmission efficiency is improved.

[0087] In the above structure, the driving motor 219 provides stable power for the rotation of the stirring slurry, and by controlling the speed and direction, the stirring speed is accurately controlled, improving the stirring efficiency and uniformity. Arranging the driving motor 219 on the top plate 217 provides a stable support for the driving motor 219. Moreover, the distance between the rotating shaft 207 and the driving motor 219 is shortened, facilitating assembly, reducing transmission loss, and improving energy utilization.

[0088] As Figure 6As shown, in some embodiments of the present application, the stirring device 2 further comprises a lifting assembly, which comprises a threaded rod 220 and a moving plate 221. The threaded rod 220 is connected to the top plate 217 and the bottom plate 216 at two ends, and the moving plate 221 has a threaded hole. The threaded rod 220 is connected to the moving plate 221 through the threaded hole, and the stirring barrel 201 is arranged on the moving plate 221. The threaded rod 220 is rotated to drive the moving plate 221 to move along the threaded rod 220 and to move relative to the top plate 217.

[0089] The lifting assembly can flexibly adjust the distance between the stirring barrel 201 and the rotating shaft 207 through the cooperation of the threaded rod 220 and the moving plate 221. This adjustment function enables the stirring device 2 to stir the slurry at different liquid levels, thereby improving the uniformity and efficiency of stirring. By adjusting the position of the stirring barrel 201, the rotating shaft 207 is located at an appropriate depth of the slurry, optimizing the stirring effect. In particular, when dealing with high-viscosity or difficult-to-stir slurries, this adjustment function can improve the stirring efficiency.

[0090] The threaded rod 220 is connected to the top plate 217 and the bottom plate 216 at two ends, forming a support structure for the entire lifting assembly. The threaded rod 220 is provided with threads for cooperating with the threaded hole on the moving plate 221 to achieve the up-and-down movement of the moving plate 221. The moving plate 221 has a threaded hole that matches the threaded rod 220, and is connected to the threaded rod 220 through the threads. When the threaded rod 220 is rotated, the moving plate 221 will move up and down along the threaded rod 220, thereby driving the stirring barrel 201 to move together. The stirring barrel 201 is arranged on the moving plate 221 and thus moves up and down with the moving plate 221. This design enables the stirring barrel 201 to flexibly adjust its position relative to the rotating shaft 207.

[0091] Optionally, at least two limiting members are arranged on the side plate 218, respectively on both sides of the moving plate 221, to limit the horizontal rotation of the limiting plate.

[0092] In the above structure, by arranging the threaded rod 220 and the moving plate 221, the distance between the stirring barrel 201 and the rotating shaft 207 can be adjusted, thereby adjusting the distance between the rotating shaft 207 and the bottom wall of the stirring barrel 201, facilitating the stirring of the slurry at different liquid levels in the stirring barrel 201 and improving the uniformity of stirring.

[0093] As shown in Figure 6 and Figure 7 In some embodiments of the present application, the lifting assembly further comprises a fixing member and a connecting member 223. The fixing member comprises a fixing plate 222 and a mounting plate 224 connected to each other. The fixing plate 222 abuts against the outer wall of the stirring barrel 201. The mounting plate 224 is provided with a fixing hole, and the connecting member 223 passes through the fixing hole and is connected to the moving plate 221.

[0094] Optionally, the number of fixing members is multiple, and the multiple fixing members are arranged at intervals along the circumference of the stirring barrel 201. The connecting member 223 is also provided with multiple fixing members correspondingly.

[0095] The main function of the fixing member is to improve the stability of the stirring barrel 201 during movement, preventing it from tipping over due to sliding or tilting. Through the abutment of the fixing plate 222 and the outer wall of the stirring barrel 201, and the connection of the mounting plate 224 and the moving plate 221, a firm connection between the stirring barrel 201 and the moving plate 221 is achieved.

[0096] The connecting member 223 can be a fastener such as a bolt or screw, or other forms of connecting devices.

[0097] The design of the fixing member and the connecting member 223 enables the stirring barrel 201 to maintain a stable position and posture during movement, thereby improving the uniformity and efficiency of stirring.

[0098] In the above structure, the stirring barrel 201 is connected to the moving plate 221 through the fixing member and the connecting member 223, reducing the risk of tipping over caused by sliding of the stirring barrel 201 on the moving plate 221 during movement, and improving the stability of the movement process.

[0099] As shown in Figure 5 and Figure 6 In some embodiments of the present application, a temperature sensor 225 is also provided on the stirring barrel, which is used to detect the temperature of the slurry in the stirring barrel.

[0100] The temperature sensor 225 can detect the temperature of the slurry in the stirring barrel 201 in real time and transmit the temperature data to the control system or display screen. This enables the operator to know the temperature state of the slurry at any time, so as to take appropriate measures. Through the preset temperature threshold, the temperature sensor 225 can issue an alarm when the temperature of the slurry exceeds or is lower than the set range. This function helps to prevent the slurry from breaking or agglomerating due to excessive temperature, or affecting the stirring effect due to low temperature.

[0101] For some heat-sensitive slurry, excessive temperature may cause changes in its molecular structure, leading to breaking phenomenon. Through the monitoring of the temperature sensor 225, the temperature during stirring can be adjusted in time, so as to avoid the breaking of the slurry. If the temperature of the slurry is too low during stirring, it may cause an increase in its viscosity, leading to agglomeration phenomenon. The monitoring of the temperature sensor 225 helps to ensure that the slurry is stirred within an appropriate temperature range, thereby preventing agglomeration.

[0102] According to the temperature data provided by the temperature sensor 225, the operator can adjust the stirring speed, stirring time, and other process parameters to optimize the stirring effect. Such adjustments help ensure that the slurry reaches the desired uniformity and quality during the stirring process. By precisely controlling the temperature during stirring, energy waste caused by excessively high or low temperatures can be reduced. This helps reduce production costs and improve the energy efficiency of the stirring device 2.

[0103] In the above structure, by setting the temperature sensor 225 to monitor the temperature of the slurry in the stirring barrel 201, the risk of slurry rupture or agglomeration due to temperature exceeding the threshold value is reduced, and the stability during stirring is improved.

[0104] In some embodiments of the present application, the stirring device 2 further comprises a heat exchange assembly provided on the outer periphery of the stirring barrel 201, and the heat exchange assembly is provided with heat exchange flow channels. The heat exchange assembly is provided with heat exchange flow channels, which are usually closely attached to or embedded in the outer wall of the stirring barrel 201. By circulating cooling or heating medium (such as water, oil, etc.), the heat exchange flow channels can absorb or release heat from the slurry, thereby achieving precise control of the temperature of the slurry.

[0105] For example, the heat exchange assembly can be a heat exchange pad or a heat exchange barrel provided outside the stirring barrel 201. Its shape or structure can be set as needed.

[0106] In the above structure, by setting the heat exchange assembly to control the stability of the slurry, the slurry with a temperature exceeding the preset value is subjected to heat exchange, reducing the risk of slurry rupture or agglomeration due to temperature exceeding the threshold value.

[0107] In some embodiments of the present application, the stirring device 2 further comprises a control assembly 226, which is electrically connected to the driving motor 219 and the temperature sensor 225.

[0108] The control assembly 226 usually includes a microprocessor (or controller), a circuit board, and related electronic components. These components work together to achieve precise control of various components in the stirring device 2. The control assembly 226 is electrically connected to the driving motor 219 and the temperature sensor 225. This connection enables the control assembly 226 to receive temperature data from the temperature sensor 225 and adjust the speed of the driving motor 219 based on these data, thereby achieving precise control of the stirring speed. Through the control assembly 226, the operator can set the range of stirring speed or the specific speed value. The control assembly 226 will automatically adjust the speed of the driving motor 219 according to these settings to ensure that the stirring process is carried out within the predetermined speed range. The control assembly 226 has a fast response speed and can quickly perceive changes in the data of the temperature sensor 225 and immediately adjust the speed of the driving motor 219. This fast response helps ensure the stability and uniformity of the slurry during the stirring process.

[0109] In some embodiments of the present application, the stirring barrel 201 is provided with an observation window for observing the internal slurry. For example, a through hole can be formed on the stirring barrel 201, and then a transparent material is used to close the through hole to form the observation window.

[0110] By setting the observation window, the operator can directly observe the flow state, mixing uniformity, and whether there are agglomeration or precipitation problems of the internal slurry of the stirring barrel 201 with the naked eye. This intuitive observation method helps to discover and solve problems in time, ensuring the smooth progress of the stirring process.

[0111] Optionally, in addition to human eye observation, a camera device (such as a camera) can be installed near the observation window to monitor the slurry in real time through video signals. This way not only can remote monitoring be performed in the operation room, but also the monitoring picture can be saved for subsequent analysis and improvement.

[0112] Through the observation window or the camera device, the operator can quickly discover changes in the state of the slurry, such as temperature rise, viscosity increase, etc. This rapid response helps to adjust the stirring speed, add additives or change the stirring conditions in time, so as to ensure that the slurry is stirred in the best state. Through the real-time information provided by the observation window, the operator can more accurately judge the mixing degree, dispersion effect, etc. of the slurry, and then optimize the stirring process parameters. This optimization helps to improve the quality and production efficiency of the slurry.

[0113] In some optional embodiments, the stirring device 2 comprises a stirring barrel 201 and a stirring assembly 202. The stirring barrel is used to contain slurry, and the stirring barrel 201 has an inlet 203 and an outlet 204. The stirring assembly 202 is arranged in the stirring barrel 201, and the stirring assembly 202 comprises a stirring paddle 205 and a splash-proof cover 206. The stirring paddle 205 is capable of rotating and stirring the slurry in the stirring barrel 201, and the splash-proof cover 206 is arranged outside the stirring paddle 205, and the splash-proof cover 206 is provided with flow guide grooves 208 for guiding the flow direction of the slurry. The stirring assembly 202 comprises a rotating shaft 207 and a plurality of paddle blades 209. The rotating shaft 207 is capable of rotating about the axis, and the plurality of paddle blades 209 are arranged along the circumference of the rotating shaft 207. The paddle blades 209 are arranged in a first direction relative to the axis of the rotating shaft 207, and the first direction is the clockwise direction or the counterclockwise direction. The splash-proof cover 206 comprises an upper cover 210 and an extension 211. The upper cover 210 has a central hole, and the rotating shaft 207 is rotatably connected to the upper cover 210 through the central hole. The extension 211 is bent in the direction of the stirring paddle 205 along the edge of the upper cover 210. The extension 211 is arranged away from the end of the rotating shaft 207 towards the paddle blades 209, and a plurality of flow guide grooves 208 are arranged in the extension 211 along the circumference of the rotating shaft 207. The flow guide grooves 208 extend in a second direction relative to the axis of the rotating shaft 207, and the second direction is the counterclockwise direction or the clockwise direction, and the second direction is opposite to the first direction. The stirring device 2 further comprises a fixed support, and the fixed support comprises a bottom plate 216, a top plate 217 and a side plate 218. The stirring device 2 further comprises a driving motor 219, and the driving motor 219 is connected to the rotating shaft 207 for driving the rotating shaft 207 to rotate. The driving motor 219 is arranged on the side of the top plate 217 away from the bottom plate 216, and the rotating shaft 207 passes through the top plate 217 and is connected to the driving motor 219. The stirring device 2 further comprises a lifting assembly, and the lifting assembly comprises a threaded rod 220 and a moving plate 221. The two ends of the threaded rod 220 are respectively connected to the top plate 217 and the bottom plate 216, and the moving plate 221 has a threaded hole. The threaded rod 220 passes through the threaded hole and is connected to the moving plate 221, and the stirring barrel 201 is arranged on the moving plate 221. The threaded rod 220 is rotated to drive the moving plate 221 to move along the threaded rod 220 and drive the moving plate 221 to move relative to the top plate 217. Specific embodiments

[0115] The same components of the material are used to stir with a conventional mixer and the stirring device 2 provided by the embodiments of the present application. The difference between the conventional mixer and the present application is that the conventional mixer does not have the splash-proof cover 206 in the present application, and the other structures are the same as the stirring device 2 provided by the embodiments of the present application. The experimental results are as follows:

[0116] Table I

[0117]

[0118] As can be seen from Table 1, in Comparative Example 1, after one minute of stirring, the median particle size in the upper 1 / 3 of the stirring tank was 4.265 μm, the median particle size in the middle 1 / 3 of the stirring tank was 11.268 μm, and the median particle size in the lower 1 / 3 of the stirring tank was 15.852 μm. At this time, after one minute of stirring, more large particles were deposited at the bottom. In Example 1, the median particle size in the lower 1 / 3 of the stirring tank 201 was 12.741 μm. A portion of the large particles had been quickly moved to the upper layer or the middle layer.

[0119] Similarly, as can be seen from Comparative Example 2 and Example 2, after five minutes of stirring, the particle sizes in the various layers in Example 2 were less different, indicating that more large particles were stirred to the middle layer and the upper layer, while in Comparative Example 2, the particle sizes were more different, and more large particles were deposited at the bottom.

[0120] In Example 3, the stirring effect in the present application is better, and the difference in the median particle sizes between the upper portion and the lower portion of the stirring tank 201 is smaller than in the comparative example.

[0121] As can be seen from the above examples, the stirring device 2 in the present application can quickly stir and mix the large particles at the bottom with the small particles at the upper layer in a short time, improving the stirring efficiency. After a period of stirring, the difference in the median particle sizes between the upper portion and the lower portion of the stirring tank 201 is reduced, effectively improving the homogenization degree of the stirring.

[0122] The same material was stirred using a conventional stirrer and the stirring device 2 provided in the present application. The conventional stirrer differs from the present application in that it does not have the splash-proof cover 206 and does not have the heat exchange assembly, and the other structures are the same as the stirring device 2 provided in the present application. The following experiments were measured at room temperature of 24°C. The experimental results are as follows:

[0123] Table 2

[0124]

[0125] As can be seen from Table 2, in Comparative Example 4, after 10 minutes of stirring, the temperature of the slurry in the upper 1 / 3 of the stirring tank was 26°C, the temperature in the middle 1 / 3 of the stirring tank was 34°C, and the temperature in the lower 1 / 3 of the stirring tank was 32°C. At this time, the temperature difference in the various layers of the stirring tank was large. In Example 4, the temperatures in the stirring tank 201 were 22°C in the upper portion, 24°C in the middle portion, and 24°C in the lower portion. After ten minutes of stirring, the temperature difference in the stirring tank 201 was small, and the temperature was relatively balanced.

[0126] Similarly, as can be seen from Comparative Example 5 and Example 5, the temperature of the slurry in Comparative Example 5 continuously increases under the stirring action and the temperature difference between different parts of the stirring barrel is large. In Example 5, the temperature of the slurry is still balanced.

[0127] In Comparative Example 6, the temperature of the slurry has reached 68℃. In Example 6, the stirring device 2 provided by the embodiments of the present application keeps the temperature of the slurry in the stirring barrel 201 within a certain range through heat exchange of the heat exchange assembly, and the temperature difference between different parts of the stirring barrel 201 is small due to the good stirring effect.

[0128] As can be seen from the above examples, the stirring device 2 in the present application can keep the temperature of the slurry during stirring and improve the homogenization effect of stirring.

[0129] The embodiments of the present application also provide a battery manufacturing equipment comprising the stirring device 2 in the above examples. The stirring device is used for stirring the active material slurry in the battery.

[0130] In the stirring device 2, the stirring barrel 201 is arranged to accommodate various raw materials that need to be homogenized, thereby providing a stable environment for the homogenization process and reducing the pollution of the slurry caused by external impurities. The stirring paddle 205 arranged on the stirring assembly can fully stir the slurry in the stirring barrel 201, thereby improving the uniformity of the slurry. In particular, the splash-proof cover 206 arranged outside the stirring barrel and the flow guide groove 208 can guide the flow direction of the slurry, so that the slurry forms a vortex, the vortex drives the material at the bottom to move to the upper layer and mix with other materials, thereby improving the flowability of the slurry, thereby improving the stirring efficiency and the homogenization effect of the slurry.

[0131] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above examples, or make equivalent replacement for part or all of the technical features; 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 be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A stirring device, characterized in that, The application relates to a stirring device. The stirring device comprises: a stirring barrel for containing slurry, the stirring barrel having an inlet and an outlet; 2. The stirring device according to claim 1, characterized in that a stirring assembly arranged in the stirring barrel, the stirring assembly comprising a stirring shaft and a splash-proof cover, the stirring shaft being rotatable and capable of stirring the slurry in the stirring barrel, the splash-proof cover being arranged outside the stirring shaft and having flow guide grooves for guiding the flow direction of the slurry. The stirring assembly comprises: a rotating shaft capable of rotating along an axial direction; 3. The stirring device of claim 2, wherein a plurality of blades arranged along the circumferential direction of the rotating shaft, the blades being arranged in a first direction relative to the axial direction of the rotating shaft, the first direction being the clockwise direction or the counterclockwise direction. The splash-proof cover comprises: an upper cover having a central hole, the rotating shaft being rotatably connected to the upper cover through the central hole; 4. The stirring device of claim 3, wherein an extension part bent along the edge of the upper cover towards the stirring shaft, the extension part being arranged towards the end of the blades away from the rotating shaft, and a plurality of the flow guide grooves being sequentially and spacedly arranged on the extension part along the circumferential direction of the rotating shaft.

5. A stirring device according to any one of claims 2-4, characterized in that The flow guide grooves extend in a second direction relative to the axial direction of the rotating shaft, the second direction being the counterclockwise direction or the clockwise direction, and the second direction being opposite to the first direction. The stirring assembly further comprises: a connecting ring sleeved on the rotating shaft, the plurality of blades being connected to the connecting ring, the surface of the connecting ring towards the rotating shaft being concave to form a first recess, and the surface of the rotating shaft towards the connecting ring being correspondingly provided with a second recess; 6. A stirring device according to claim 3 or 4, characterized in that a connecting pin arranged in the first recess and the second recess to connect the connecting ring and the rotating shaft, the connecting pin being used for limiting the movement of the connecting ring relative to the rotating shaft. The stirring device further comprises a fixed support, the fixed support comprising: a bottom plate for supporting the stirring barrel; a top plate arranged opposite to the bottom plate, the splash-proof cover being connected to the top plate; 7. The stirring device of claim 6, wherein a side plate connected between the bottom plate and the top plate.

8. The stirring device of claim 7, wherein The stirring device further comprises a driving motor, the driving motor being connected to the rotating shaft for driving the rotating shaft to rotate, the driving motor being arranged on the side of the top plate away from the bottom plate, the rotating shaft penetrating through the top plate and being connected to the driving motor. The stirring device further comprises a lifting assembly, the lifting assembly comprising: a threaded rod, two ends of the threaded rod being connected to the top plate and the bottom plate respectively; 9. The stirring device of claim 8, wherein a moving plate having a threaded hole, the threaded rod penetrating through the threaded hole and being connected to the moving plate, the stirring barrel being arranged on the moving plate, the threaded rod being rotated to drive the moving plate to move along the threaded rod and to drive the moving plate to move relative to the top plate.

10. A stirring device according to any one of claims 7-9, characterized in that The lifting assembly further comprises a fixing member and a connecting member, the fixing member comprising a fixing plate and a mounting plate connected to each other, the fixing plate being abutted against the outer wall of the stirring barrel, the mounting plate being provided with a fixing hole, and the connecting member penetrating through the fixing hole and being connected to the moving plate.

11. The stirring device of claim 10, wherein The stirring barrel is further provided with a temperature sensor, the temperature sensor being used for detecting the temperature of the slurry in the stirring barrel. The stirring device further comprises a heat exchange assembly arranged on the outer periphery of the stirring barrel, the heat exchange assembly being provided with a heat exchange flow channel.

12. The stirring device of claim 10, wherein The stirring device further comprises a control assembly electrically connected with the driving motor and the temperature sensor.

13. The stirring device according to any one of claims 1-4, characterized in that An observation window is arranged on the stirring barrel for observing the internal slurry.

14. A battery manufacturing apparatus, characterized by comprising: The stirring device according to any one of claims 1-13.

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