Stirrer stator and homogenizer
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN UTILITY ENERGY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]本申请实施例的目的在于提供一种，以解决现有技术中存在的搅拌器定子上通孔的孔壁对浆料的剪切力过大而导致浆料过稀的技术问题
[0014] The beneficial effects of the agitator stator and homogenizer provided in this application are as follows: The application provides through holes in the main body, and the walls of these through holes can shear the slurry, reducing the particle size in the slurry. By limiting the cross-sectional area of a single through hole to the aforementioned range, the slurry experiences moderate shearing force from the through hole walls during agitation by the paddles, preventing the slurry from becoming too thin, resulting in smaller particles and greater stability.
Smart Images
Figure CN224599107U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of mixing equipment, specifically relating to a stirrer stator and homogenizer. Background Technology
[0002] Using a homogenizer to mix slurry ensures uniform mixing. A homogenizer typically consists of a stator, impellers, and a driver. The stator has through-holes, and the impellers are housed within the stator. The driver rotates the impellers, causing the slurry to flow out through the through-holes. As the slurry flows out, it experiences shear force from the orifice walls. Currently, some homogenizer stators exhibit excessive shear force from the orifice walls, leading to an overly thin slurry. For example, in battery manufacturing, when homogenizing a slurry of styrene-butadiene rubber (SBR) and carboxymethyl cellulose (CMC), the excessive shear force on the CMC causes it to thin, resulting in unstable sedimentation. Utility Model Content
[0003] The purpose of this application is to provide a solution to the technical problem in the prior art where the shear force exerted on the slurry by the through hole wall on the agitator stator is too large, resulting in an excessively thin slurry.
[0004] To achieve the above objectives, an embodiment of the first aspect of this application provides a stirrer stator, including a main body, which is an annular structure extending along a first direction and enclosing a stirring chamber. The main body has an outer annular surface extending along the first direction, and a plurality of through holes are spaced apart on the main body, the through holes connecting the inside and outside of the stirring chamber, the cross-sectional area of the through holes being 2%-5% of the area of the outer annular surface. The hole wall of the through hole includes two opposing first wall surfaces and two opposing second wall surfaces, the two first wall surfaces being parallel, the second wall surfaces being connected between the two first wall surfaces, and the first wall surfaces and the second wall surfaces being connected by a rounded transition.
[0005] In some embodiments, the sum of the cross-sectional areas of all through holes is 30%-60% of the area of the outer annular surface.
[0006] In some embodiments, the second wall is arc-shaped and is tangent to the two first walls respectively.
[0007] In some embodiments, at least two rows of through holes are provided along a first direction, and the through holes in each row are distributed along the circumference of the main body; the first wall surface of at least one row of through holes extends in the same direction and intersects with the circumference of the main body.
[0008] In some embodiments, the first wall surfaces of the same row of through holes extend in the same direction, and the first wall surfaces of adjacent rows of through holes intersect.
[0009] In some embodiments, the first wall surfaces of two adjacent rows of through holes extend along the circumferential direction and the first direction of the main body, respectively; in the circumferential direction of the main body, any two through holes in the two adjacent rows of through holes are staggered at their ends along the circumferential direction of the main body.
[0010] In some embodiments, two rows of through holes are provided, and in a first direction, the length of the through holes extending along the first wall surface in the first direction is 60%-80% of the length of the main body.
[0011] In some embodiments, the distance between two adjacent through holes is 3mm-10mm.
[0012] In some embodiments, the stator of the stirrer is provided with an internal thread at one end along the first direction, and the internal thread is coaxial with the main body.
[0013] The second aspect of this application also provides a homogenizer, including a stirring blade, a driver, and a stirrer stator of any one of the first aspect embodiments. The stirring blade is disposed in a stirring chamber and coaxial with the stirring chamber. The driver is connected to the stirring blade and is used to drive the stirring blade to rotate.
[0014] The beneficial effects of the agitator stator and homogenizer provided in this application are as follows: The application provides through holes in the main body, and the walls of these through holes can shear the slurry, reducing the particle size in the slurry. By limiting the cross-sectional area of a single through hole to the aforementioned range, the slurry experiences moderate shearing force from the through hole walls during agitation by the paddles, preventing the slurry from becoming too thin, resulting in smaller particles and greater stability.
[0015] The second wall connects between the two first walls, and the dimension occupied by the through hole in the spacing direction of the two first walls is the maximum distance between the two first walls. When the dimension occupied by the through hole in the spacing direction of the two first walls is the same, setting the two first walls as parallel planes, compared with the first walls being curved, can maximize the space between the two first walls, thereby making the cross-sectional area of the through hole larger. This can reduce the shear force on the slurry from the through hole wall and prevent the slurry from becoming too thin. When the slurry flows out of the through hole, it will squeeze the hole wall of the through hole. The rounded transition between the first wall and the second wall can prevent the pressure of the slurry on the hole wall from concentrating at the intersection of the first wall and the second wall. The structure of the main body is more stable and stronger, and it can also reduce the shear force on the slurry at the intersection of the first wall and the second wall. This application can solve the technical problem of excessive shear force on the slurry caused by the hole wall of the through hole on the agitator stator, resulting in an excessively thin slurry. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the stirrer stator provided in some embodiments of this application; Figure 2 A front view of the stirrer stator provided in some embodiments of this application; Figure 3 A top view of a homogenizer provided for some embodiments of this application.
[0018] The following are the labeling elements in the figure: 1000. Homogenizer; 100. Stator for agitator; 10. Main body; 11. Stirring chamber; 12. Outer annular surface; 13. Through hole; 14. First wall surface; 15. Second wall surface; 16. Internal thread; 17. Connecting part; 20. Support section; 200. Agitator blades; 300. Driver. Detailed Implementation
[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0023] There are many types of mixing tanks for lithium-ion batteries and sodium-ion batteries, with the double planetary mixing tank being the most common. Homogenizing and emulsifying mixing equipment is also available, and the differences between these types of mixing tanks are significant. Homogenizing and emulsifying mixing equipment is divided into low-speed mixing equipment and high-speed mixing equipment. Low-speed mixing equipment consists of a hanger covered with scrapers and blades, the scrapers being made of polytetrafluoroethylene (PTFE). Low-speed mixing equipment can only operate when there is material present, is easy to disassemble and clean, and its rotation speed is 0-60 r / min.
[0024] The high-speed mixing equipment is a homogenizer installed at the center of the tank bottom. The homogenizer consists of a circular agitator stator and a rotor with blades, made of SUS304 stainless steel. The blades are connected to a dynamically balanced concentric shaft, and the blade rotation speed is 0-3000 r / min. The smaller the cross-sectional area of the through-hole on the agitator stator, the greater the linear velocity of the slurry passing through the through-hole, and the greater the shear force experienced by the slurry. The diameter of the through-hole on existing agitator stators is typically 1-3 cm, and the cross-sectional area of a single through-hole accounts for 0.2%-1% of the outer circumferential surface area of the agitator stator. Existing high-loading negative electrode formulations in lithium-ion and sodium-ion batteries include styrene-butadiene rubber (SBR) latex and carboxymethyl cellulose (CMC), with a relatively low CMC content. Excessive shear force can cause carboxymethyl cellulose (CMC) to become thinner, resulting in unstable slurry settling and thus affecting coating stability and battery performance.
[0025] To address the aforementioned problems, an embodiment of the first aspect of this application provides a stirrer stator for use with impellers to mix slurry.
[0026] Please refer to Figure 1 and Figure 2The stirrer stator 100 of this application embodiment includes a main body 10, which is a ring structure extending along the first direction Z and surrounds a stirring chamber 11. The main body 10 has an outer ring surface 12 extending along the first direction Z, and a plurality of through holes 13 are provided on the main body 10 at intervals. The through holes 13 connect the inside and outside of the stirring chamber 11, and the cross-sectional area of the through holes 13 is 2%-5% of the area of the outer ring surface 12.
[0027] The hole wall of the through hole 13 includes two oppositely arranged first wall surfaces 14 and two oppositely arranged second wall surfaces 15. The two first wall surfaces 14 are parallel, and the second wall surfaces 15 are connected between the two first wall surfaces 14. The first wall surfaces 14 and the second wall surfaces 15 are connected by a rounded transition.
[0028] The axis of the main body 10 extends along the first direction Z, which is the axial direction of the main body 10.
[0029] The cylindrical space enclosed by the main body 10 is the stirring chamber 11, which extends along the first direction Z. In the radial direction of the main body 10, the main body 10 separates the stirring chamber 11 from the space outside the main body 10.
[0030] The mixing chamber 11 is used to accommodate the blades. The mixing chamber 11 is provided with openings at both ends along the first direction Z, and the slurry can enter the mixing chamber 11 from the opening at one end along the first direction Z.
[0031] The outer annular surface 12 refers to the annular outer surface of the main body 10 extending along the first direction Z. Any two through holes 13 are spaced apart on the main body 10. In the first direction Z, the stirring chamber 11 is already connected to the space outside the stirring chamber 11. The through holes 13 connect the inside and outside of the stirring chamber 11; that is, the through holes 13 connect the inside and outside of the stirring chamber 11 in other directions intersecting the first direction Z. The two ends of the through holes 13 along their depth direction are located on the inner annular surface and the outer annular surface 12 of the main body 10, respectively.
[0032] The cross-sectional area of the through-hole 13 refers to the area of the cross-section of the through-hole 13 perpendicular to its depth direction. The area of the outer annular surface 12 is: π × outer diameter of the main body 10 × axial length of the main body 10. When the cross-sectional area of the through-hole 13 accounts for less than 2% of the area of the outer annular surface 12, the through-hole 13 can hold less slurry, the resistance to slurry flow is greater, the shear force of the hole wall on the slurry is greater, and the slurry is prone to being too thin. When the cross-sectional area of the through-hole 13 accounts for more than 5% of the area of the outer annular surface 12, the through-hole 13 can hold more slurry, the resistance to slurry flow is smaller, the linear velocity of the slurry flowing out of the through-hole 13 is smaller, the shear force of the hole wall on the slurry is smaller, and the particles in the slurry are larger.
[0033] Optionally, the cross-sectional area of the through-hole 13 can be 2% of the area of the outer annular surface 12. The hole wall of the through-hole 13 exerts a large shear force on the slurry, which can result in smaller particles in the slurry. Optionally, the cross-sectional area of the through-hole 13 can also be 5% of the area of the outer annular surface 12. The hole wall of the through-hole 13 exerts a small shear force on the slurry, which can result in a thicker and more stable slurry. Optionally, the cross-sectional area of the through-hole 13 can also be 2.5%, 3%, 3.5%, 4%, 4.5%, etc., of the area of the outer annular surface 12.
[0034] The first wall 14 is a plane, and the two first walls 14 are spaced apart in a direction perpendicular to themselves. The two second walls 15 are respectively connected to the two ends of the two first walls 14 along their own length direction, and each second wall 15 is connected to one end of the two first walls 14 along its own length direction by two rounded corners.
[0035] Optionally, the second wall surface 15 can be a plane, with rounded corners connecting the first wall surface 14 and the second wall surface 15. For example, the second wall surface 15 can be perpendicular to the first wall surface 14. Optionally, the second wall surface 15 can also be an arc surface, with the rounded corners being a part of the second wall surface 15.
[0036] In use, the stator 100 of the agitator is fixed to the bottom of the container along the first direction Z, and the blades are installed in the mixing chamber 11 so that the rotation axis of the blades coincides with the axis of the agitator stator 100. The slurry is added to the container and flows into the mixing chamber 11. The motor drives the blades to rotate, pushing the slurry out of the mixing chamber 11 through the through-hole 13. The wall of the through-hole 13 shears the slurry, reducing the particle size. The opening of the mixing chamber 11 near the bottom of the container along the first direction Z is closed. As the slurry flows out of the mixing chamber 11 through the through-hole 13, slurry outside the mixing chamber 11 flows into the mixing chamber 11 through the opening at the end of the mixing chamber 11 away from the bottom of the container along the first direction Z. The slurry circulates inside and outside the mixing chamber 11 and mixes evenly.
[0037] The beneficial effects of this application embodiment are as follows: by providing a through hole 13 on the main body 10, the hole wall of the through hole 13 can shear the slurry, making the particles in the slurry smaller. By limiting the cross-sectional area of a single through hole 13 to the above range, when the slurry is stirred by the paddle, the slurry is subjected to a moderate shear force from the hole wall of the through hole 13, which can prevent the slurry from being too thin, resulting in smaller particles and a more stable slurry.
[0038] The second wall 15 connects between the two first walls 14, so the size occupied by the through hole 13 in the spacing direction of the two first walls 14 is the maximum distance between the two first walls 14. When the size occupied by the through hole 13 in the spacing direction of the two first walls 14 is the same, compared with the first wall 14 being an arc surface, setting the two first walls 14 as parallel planes can maximize the space between the two first walls 14, thereby making the cross-sectional area of the through hole 13 larger, which can reduce the shear force on the slurry from the hole wall of the through hole 13 and prevent the slurry from being too thin. When the slurry flows out of the through hole 13, it will squeeze the hole wall of the through hole 13. The rounded transition between the first wall 14 and the second wall 15 can prevent the pressure of the slurry on the hole wall of the through hole 13 from concentrating at the intersection of the first wall 14 and the second wall 15. The structure of the main body 10 is more stable and stronger, and the shear force on the slurry at the intersection of the first wall 14 and the second wall 15 can be reduced. This application embodiment solves the technical problem of excessive shear force exerted on the slurry by the through-hole 13 on the stirrer stator 100, resulting in an excessively thin slurry. The stirrer stator 100 of this application embodiment is more suitable for battery negative electrode formulations with low carboxymethyl cellulose (CMC) content.
[0039] In some embodiments, the sum of the cross-sectional areas of all through holes 13 is 30%-60% of the area of the outer annular surface 12.
[0040] When the sum of the cross-sectional areas of all through holes 13 is less than 30% of the area of the outer annular surface 12, the total amount of slurry that can be contained in all through holes 13 is relatively small, the resistance to slurry flow is relatively large, the shear force exerted on the slurry by the hole walls of the through holes 13 is relatively large, and the slurry is prone to being too thin. When the cross-sectional area of the through holes 13 is more than 60% of the area of the outer annular surface 12, the total amount of slurry that can be contained in all through holes 13 is relatively large, the resistance to slurry flow is relatively small, the shear force exerted on the slurry by the hole walls of the through holes 13 is relatively small, and the particles in the slurry are relatively large.
[0041] Optionally, the sum of the cross-sectional areas of all through holes 13 can be 30% of the area of the outer annular surface 12. The through hole walls of the through holes 13 exert a greater shear force on the slurry, resulting in smaller particles in the slurry. Alternatively, the sum of the cross-sectional areas of all through holes 13 can also be 60% of the area of the outer annular surface 12. The through hole walls of the through holes 13 exert a smaller shear force on the slurry, resulting in a thicker and more stable slurry. Alternatively, the cross-sectional area of the through holes 13 can also be 35%, 40%, 45%, 50%, 55%, etc., of the area of the outer annular surface 12.
[0042] The beneficial effects of this application embodiment are that: the sum of the cross-sectional areas of all through holes 13 is limited to the above range, and when the slurry is stirred by the paddle, the slurry is subjected to moderate shear force from the hole wall of the through hole 13, which can prevent the slurry from being too thin, and the particles in the slurry are smaller and the slurry is more stable.
[0043] In some embodiments, please refer to Figure 1 and Figure 2 The second wall 15 is arc-shaped and is tangent to the two first walls 14 respectively. That is to say, the second wall 15 is semi-circular arc-shaped. The diameter of the second wall 15 is equal to the distance between the two first walls 14, and the lengths of the two first walls 14 are equal.
[0044] The beneficial effect of this application embodiment is that by setting the second wall surface 15 as a semi-circular arc, the second wall surface 15 can be directly machined using a drilling tool, and the machining speed of the through hole 13 is faster.
[0045] In some embodiments, please refer to Figure 1 and Figure 2 The through holes 13 are arranged in at least two rows along the first direction Z, and the through holes 13 in each row are distributed along the circumference of the main body 10. The first wall surface 14 of at least one row of through holes 13 extends in the same direction and intersects with the circumference of the main body 10.
[0046] Multiple through holes 13 are arranged in multiple rows, with the rows spaced apart along the first direction Z. Optionally, the through holes 13 can be arranged in two rows for ease of processing. Optionally, the through holes 13 can also be arranged in three or four rows, etc.
[0047] Each row has multiple through holes 13, and the multiple through holes 13 in each row are distributed along the circumference of the main body 10. The circumference of the main body 10 is perpendicular to the first direction Z.
[0048] To ensure the strength of the main body 10, adjacent through holes 13 need to be spaced a certain distance circumferentially between them. For ease of description, for adjacent through holes 13 whose first wall surfaces 14 extend in the same direction and intersect the circumferential direction of the main body 10, the area between the two first wall surfaces 14 of these two through holes 13 is defined as the connecting part 17. Figure 1 and Figure 2 The boundary of the connecting portion 17 is indicated by a dashed line. In the circumferential direction of the main body 10, when the minimum interval between two through holes 13 is constant, in this row of through holes 13 extending in the same direction as the first wall surface 14 and intersecting the circumferential direction of the main body 10, the dimensions of the connecting portions 17 between adjacent through holes 13 at different positions in the circumferential direction of the main body 10 can all reach a minimum. In the circumferential direction of the main body 10, the total length occupied by the connecting portions 17 between the first wall surfaces 14 of this row of through holes 13 can reach a minimum, thus maximizing the total length occupied by this row of through holes 13. With other structural similarities, the sum of the cross-sectional areas of this row of through holes 13 is larger, which can reduce the shear force on the slurry from the hole walls 13 and prevent the slurry from becoming too thin. The different positions of the connecting portion 17 refer to the different positions of the connecting portion 17 in the first direction Z.
[0049] In some embodiments, please refer to Figure 1 and Figure 2 The first wall surface 14 of the same row of through holes 13 extends in the same direction, and the first wall surface 14 of two adjacent rows of through holes 13 extends in the same direction. That is to say, the first wall surface 14 of two adjacent rows of through holes 13 extends in different directions, which prevents the first wall surface 14 of two adjacent through holes 13 along the first direction Z from being located on the same plane, and the main body 10 has higher strength and is more stable.
[0050] In some embodiments, please refer to Figure 1 and Figure 2 The first wall surface 14 of two adjacent rows of through holes 13 extends along the circumference and the first direction Z of the main body 10, respectively. In the circumference of the main body 10, any two through holes 13 in two adjacent rows of through holes 13 are staggered at their ends along the circumference of the main body 10.
[0051] In two adjacent rows of through holes 13, the first wall surface 14 of one row of through holes 13 extends circumferentially along the main body 10, and the first wall surface 14 of the other row of through holes 13 extends along a first direction Z. For the through holes 13 whose first wall surface 14 extends along the first direction Z, the slurry flowing through the through holes 13 generates pressure on the first wall surface 14 along the circumferential direction of the main body 10. For the through holes 13 whose first wall surface 14 extends circumferentially along the main body 10, the slurry flowing through the through holes 13 generates pressure on the first wall surface 14 along the first direction Z.
[0052] When the slurry flows through the through-hole 13, it exerts circumferential pressure on the end of the through-hole 13 along the circumference of the main body 10. In the circumferential direction of the main body 10, the ends of any two through-holes 13 in two adjacent rows are staggered. That is, in the circumferential direction of the main body 10, the pressure exerted on the ends of any two through-holes 13 when the slurry flows through them is not concentrated at the same position along the circumference of the main body 10, thus making the structure of the main body 10 more stable. The staggered arrangement of the ends of any two through-holes 13 in two adjacent rows along the circumferential direction of the main body 10 prevents the pressure of the slurry on the main body 10 from concentrating at the same position along the circumferential direction, further enhancing the stability of the main body 10.
[0053] The beneficial effects of this application embodiment are as follows: when the slurry flows through the two rows of through holes 13, the pressure direction of the first wall surface 14 of the two rows of through holes 13 is perpendicular to each other. Therefore, the pressure of the first wall surface 14 of the two rows of through holes 13 is superimposed in the first direction Z and the circumferential direction of the main body 10 respectively. The total slurry pressure of the multiple first wall surfaces 14 in the first direction Z and the direction perpendicular to the first direction Z is relatively small, and the structure of the main body 10 is more stable.
[0054] In some embodiments, the through holes 13 are provided in two rows, and the length of the through holes 13 extending along the first direction Z on the first wall surface 14 is 60%-80% of the length of the main body 10.
[0055] One row of through holes 13 has a first wall surface 14 extending circumferentially along the main body 10, while the other row of through holes 13 has a first wall surface 14 extending along the first direction Z.
[0056] For the through holes 13 extending along the first direction Z of the first wall surface 14, when the minimum distance between adjacent through holes 13 is constant, the sum of the dimensions of the connecting portions 17 between these through holes 13 in the circumferential direction of the main body 10 can reach a minimum, and the sum of the dimensions of these through holes 13 in the circumferential direction of the main body 10 can reach a maximum. With other structures being equal, the sum of the cross-sectional areas of these through holes 13 is also larger. In the first direction Z, the length of the through holes 13 extending along the first direction Z of the first wall surface 14 is 60%-80% of the length of the main body 10. That is, for this row of through holes 13 extending along the first direction Z of the first wall surface 14, the length of this row of through holes 13 is larger than that of another row of through holes 13 in the first direction Z, and the sum of the dimensions of this row of through holes 13 in the circumferential direction of the main body 10 can reach a maximum. Therefore, this row of through holes 13 allows the sum of the cross-sectional areas of all through holes 13 to occupy a large proportion of the area of the outer ring surface 12 of the main body 10. The slurry experiences less resistance when flowing out of the through hole 13, and the shear force exerted on the hole wall of the through hole 13 is also less, which can prevent the slurry from becoming too thin.
[0057] Optionally, in the first direction Z, the length of the through hole 13 extending along the first direction Z of the first wall surface 14 can be 60%, 65%, 70%, 75%, 80%, etc., of the length of the main body 10.
[0058] In some embodiments, the distance between two adjacent through holes 13 is 3mm-10mm.
[0059] When the distance between two adjacent through holes 13 is less than 3 mm, the solid portion 10 between the two through holes 13 is smaller, and the overall strength of the main body 10 is lower. When the distance between two adjacent through holes 13 is greater than 10 mm, the solid portion 10 between the two through holes 13 is larger, the sum of the cross-sectional areas of all through holes 13 is smaller, the shear force experienced by the slurry flowing through the through holes 13 is larger, and the slurry is prone to being too thin.
[0060] Optionally, the distance between two adjacent through holes 13 can be 3mm. This results in a larger sum of cross-sectional areas of all through holes 13, leading to less shear force on the slurry flowing through them and greater slurry stability. Alternatively, the distance between two adjacent through holes 13 can also be 10mm. This results in a larger solid portion 10 between the through holes 13, leading to higher overall strength of the main body 10. Alternatively, the distance between two adjacent through holes 13 can also be 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 9mm, etc.
[0061] The beneficial effect of this application embodiment is that by limiting the distance between two adjacent through holes 13 to the above range, it can both ensure the overall strength of the main body 10 and prevent the slurry from being too thin.
[0062] The beneficial effect of this application embodiment is that the stirrer stator 100 is provided with an internal thread 16 at one end along the first direction Z, and the internal thread 16 is coaxial with the main body 10.
[0063] The stirrer stator 100 can be screwed to the external thread at the bottom of the container via the internal thread 16, which can quickly fix the stirrer stator 100 to the container and keep the stirrer stator 100 stable.
[0064] In some embodiments, please refer to Figure 1 The stirrer stator 100 also includes a support portion 20, which is a ring-shaped structure coaxial with the main body 10. The support portion 20 is connected to the inner ring surface of the main body 10 and is located at the end of the main body 10 away from the internal thread 16 along the first direction Z. The support portion 20 can support the main body 10, thereby improving the overall strength of the stirrer stator 100.
[0065] In some embodiments, please refer to Figure 1 and Figure 2 The stirrer stator 100 includes a main body 10, which is an annular structure extending along a first direction Z, and encloses a stirring chamber 11. The main body 10 has an outer annular surface 12 extending along the first direction Z, and a plurality of through holes 13 are spaced apart on the main body 10. The through holes 13 connect the inside and outside of the stirring chamber 11, and the cross-sectional area of the through holes 13 is 2%-5% of the area of the outer annular surface 12. The sum of the cross-sectional areas of all the through holes 13 is 30%-60% of the area of the outer annular surface 12.
[0066] The through-hole 13 has two opposing first wall surfaces 14 and two opposing second wall surfaces 15. The two first wall surfaces 14 are parallel, and the second wall surfaces 15 connect the two first wall surfaces 14. The first wall surfaces 14 and the second wall surfaces 15 are connected by a rounded corner. The second wall surface 15 is arc-shaped and is tangent to each of the two first wall surfaces 14. The through-holes 13 are arranged in two rows along the first direction Z, and the first wall surfaces 14 of the two rows of through-holes 13 extend along the circumference of the main body 10 and the first direction Z, respectively.
[0067] An embodiment of the second aspect of this application also provides a homogenizer 1000, please refer to... Figures 1 to 3 The homogenizer 1000 includes a stirring blade 200, a driver 300, and a stirrer stator 100 of any one of the first aspect embodiments. The stirring blade 200 is disposed in the stirring chamber 11 and coaxial with the stirring chamber 11. The driver 300 is connected to the stirring blade 200 and is used to drive the stirring blade 200 to rotate.
[0068] The stirring impeller 200 includes a connector connected to the driver 300 and multiple blades distributed around an axis. After the stirring impeller 200 is installed in the stirring chamber 11, the axis around which the multiple blades are arranged coincides with the axis of the stirring chamber 11. The driver 300 is connected to the connector, and the rotation axis of the driver 300 coincides with the axis around which the multiple blades are arranged. The driver 300 is used to drive the multiple blades to rotate around the axis of the main body 10. Optionally, the driver 300 is a motor, the shaft of which is fixed to the connector, and the rotation axis of the motor coincides with the axis around which the multiple blades are arranged.
[0069] The beneficial effects of the embodiments of this application are as follows: the homogenizer 1000 includes the agitator stator 100 of the first aspect embodiment, which can prevent the slurry from being too thin when the paddle is agitating the slurry, and has all the effects of the agitator stator 100.
[0070] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A stirrer stator, characterized in that, The device includes a main body, which is a ring structure extending along a first direction and enclosing a stirring chamber. The main body has an outer ring surface extending along the first direction, and a plurality of through holes are spaced apart on the main body. The through holes connect the inside and outside of the stirring chamber, and the cross-sectional area of the through holes is 2%-5% of the area of the outer ring surface. The walls of the through holes include two opposing first walls and two opposing second walls. The two first walls are parallel, and the second walls are connected between the two first walls. The first walls and the second walls are connected by a rounded corner. The through holes are arranged in at least two rows along the first direction, and the through holes in each row are distributed along the circumference of the main body; the first wall surfaces of at least one row of through holes extend in the same direction and intersect with the circumference of the main body; the first wall surfaces of the same row of through holes extend in the same direction, and the first wall surfaces of adjacent rows of through holes intersect.
2. The stirrer stator as described in claim 1, characterized in that, The sum of the cross-sectional areas of all the through holes is 30%-60% of the area of the outer annular surface.
3. The stirrer stator as described in claim 1, characterized in that, The second wall is arc-shaped and is tangent to the two first walls respectively.
4. The stirrer stator as described in claim 1, characterized in that, The first wall surfaces of two adjacent rows of through holes extend along the circumference and the first direction of the main body, respectively; in the circumference of the main body, any two through holes in two adjacent rows are staggered at their ends along the circumference of the main body.
5. The stirrer stator as described in claim 4, characterized in that, The through holes are arranged in two rows. In the first direction, the length of the through holes extending along the first wall surface in the first direction is 60%-80% of the length of the main body.
6. The stirrer stator according to any one of claims 1-5, characterized in that, The distance between two adjacent through holes is 3mm-10mm.
7. The stirrer stator according to any one of claims 1-5, characterized in that, The stirrer stator has an internal thread at one end along the first direction, and the internal thread is coaxial with the main body.
8. A homogenizer, characterized in that, The device includes a stirring blade, a driver, and a stirrer stator according to any one of claims 1-7, wherein the stirring blade is disposed in the stirring chamber and coaxial with the stirring chamber, and the driver is connected to the stirring blade and is used to drive the stirring blade to rotate.