Agitator and agitator system

Abstract

The application provides a stirring device and a stirring system. The stirring device comprises a driving shaft capable of rotating in a stirring direction in an axial direction; at least two first support assemblies are arranged at intervals in a circumferential direction of the driving shaft. The first support assembly comprises a support arm and a support frame. One end of the support arm is connected to the circumferential side of the driving shaft, and the other end of the support arm is connected to the support frame. The support frame is arc-shaped, and extends from one end of the driving shaft to the other end. The support frame has spaced first and second ends along the extending direction thereof. The driving shaft drives the support frame to rotate in the stirring direction. A plurality of stirring blades are detachably arranged on the support frame. The plurality of stirring blades are sequentially and spacedly arranged in the axial direction of the driving shaft. The stirring blades extend out of the support frame in the stirring direction. When the material characteristics or process requirements are adjusted, the number, type and position of the stirring blades on the support frame can be flexibly adjusted by the staff, and the whole machine does not need to be replaced. Therefore, the process adaptability of the equipment is improved, and the transformation cost is reduced.

Description

Technical Field

[0001] This application relates to the field of mixing equipment, and in particular to a mixing device and mixing system. Background Technology

[0002] Industrial mixing equipment is widely used in industries such as chemical, environmental protection, food, and pharmaceutical. Traditional mixers are mostly integral welded structures or simple paddle structures, which have inherent drawbacks such as non-reconfigurability, difficult maintenance, bottlenecks in mixing efficiency, and inconvenience in transportation and hoisting. Some improvements in existing technologies, such as adding baffles or using combined mixing paddles, have improved the mixing effect to some extent, but have not fundamentally solved the core problems of fixed structure and poor flexibility. Especially when processing materials with different process requirements, it is often necessary to replace the entire mixer or carry out complex modifications, which is costly and inefficient. Summary of the Invention

[0003] To address the aforementioned problems, this application provides a stirring device and a stirring system.

[0004] According to one aspect of the embodiments of this application, a stirring device is disclosed, comprising: a drive shaft rotatable along the axial direction in a stirring direction; at least two first support components spaced apart circumferentially around the drive shaft, each first support component including a support arm and a support frame, one end of the support arm being connected to the periphery of the drive shaft, the other end of the support arm being connected to the support frame, the support frame being arc-shaped, the support frame extending from one end of the drive shaft to the other end, the support frame having a first end and a second end spaced apart along its extension direction, the first end being located in front of the second end in the forward direction along the stirring direction, the drive shaft rotating to drive the support frame to rotate along the stirring direction; wherein, a plurality of stirring blades are detachably provided on the support frame, the plurality of stirring blades being sequentially spaced apart along the axial direction of the drive shaft, the stirring blades extending out of the support frame along the stirring direction.

[0005] In one exemplary embodiment, the stirring blade includes a first connecting piece and a second connecting piece. The first connecting piece is detachably connected to the support frame, and the second connecting piece is located on the side of the first connecting piece away from the support frame. The second connecting piece is detachably connected to the first connecting piece. The elastic coefficient of the second connecting piece is greater than that of the first connecting piece.

[0006] In one exemplary embodiment, the support frame has a mounting surface on the side near the drive shaft, and the mounting surface is inclined forward in the direction away from the drive shaft in the forward direction along the stirring direction; the stirring blade is mounted on the mounting surface.

[0007] In an exemplary embodiment, the stirring blade includes a first plate segment and a second plate segment connected in sequence. The first plate segment is connected to the mounting surface and extends along the inclined direction of the mounting surface. The second plate segment is connected to the side of the first plate segment away from the support frame and facing the stirring direction. The second plate segment is bent relative to the first plate segment toward the drive shaft. The included angle between the first plate segment and the second plate segment is an obtuse angle.

[0008] In one exemplary embodiment, the support frame is provided with a connecting structure, the connecting structure including a connecting column, one axial end of the connecting column being fixedly connected to the surface of the support frame, and the stirring blade being detachably connected to the other axial end of the connecting column, so that the distance between the stirring blade and the support frame is set.

[0009] In one exemplary embodiment, the arc-shaped opening of the support frame faces the drive shaft, and a plurality of stirring blades are arranged sequentially at intervals along the arc-shaped extension direction of the support frame; in the forward direction along the stirring direction, the first end of the support frame is located in front of the drive shaft, and the second end of the support frame is located behind the drive shaft; the angle between the radial plane of the support frame and the axial direction of the drive shaft is 10°~20°; the blade surfaces of the plurality of stirring blades are arranged tangentially to the support frame, or the blade surfaces of the plurality of stirring blades are arranged in arc shape to conform to the extension direction of the support frame.

[0010] In one exemplary embodiment, the first support assembly further includes at least one guide plate, which is disposed on the side of the support frame near the drive shaft. The guide plate extends toward the drive shaft, and the surface of the guide plate is inclined or perpendicular to the stirring direction.

[0011] In one exemplary embodiment, the guide plate is bent at the side near the drive shaft to form a guide surface, and in the forward direction along the stirring direction, the guide surface is inclined backward toward the drive shaft; and / or at least one of the guide plates is disposed in the middle of the support frame.

[0012] In one exemplary embodiment, the support arm has a support seat at one end facing away from the support frame, and the support seats of at least two first support assemblies are detachably coupled together on the drive shaft; the first support assembly includes at least two support arms, and the at least two support arms are spaced apart along the axial direction of the drive shaft; at least one support seat is keyed to the drive shaft.

[0013] In one exemplary embodiment, the stirring device further includes: a second support assembly located on the side of the support frame near the drive shaft; the second support assembly includes at least one fixed arm and a support blade; one end of the fixed arm is connected to the periphery of the drive shaft, and the other end of the fixed arm is connected to the support blade; the drive shaft rotates to drive the support blade to rotate along the stirring direction; the fixed arm is detachably connected to the drive shaft.

[0014] In one exemplary embodiment, in the forward direction along the stirring direction, the blade surface of the support blade is tilted backward in a direction away from the drive shaft; and / or the fixed arm is provided with a side plane that is inclined to the stirring direction.

[0015] In one exemplary embodiment, the second support assembly includes two sets, with a fixed seat provided at one end of the fixed arm facing away from the support blade, and the fixed seats of the two second support assemblies detachably engaging with the drive shaft; at least one of the fixed seats is keyed to the drive shaft.

[0016] In one exemplary embodiment, the second support assembly includes two sets, the two second support assemblies being centrally symmetrical about the drive shaft; the second support assembly includes two fixed arms spaced apart along the axial direction of the drive shaft; the support blade has a first side and a second side opposite to each other along the axial direction of the drive shaft, the first side of the support blade is inclined relative to the second side in a direction closer to the drive shaft, and the support blades and the two fixed arms of the two sets of second support assemblies form a parallelogram structure.

[0017] The technical solutions provided by the embodiments of this application have at least the following beneficial effects:

[0018] In the mixing device disclosed in this application, the arc-shaped support frame is spaced apart from the drive shaft by support arms, ensuring the mixing range. By detachably installing multiple mixing blades on the support frame, operators can flexibly adjust the number, installation position, and shape of the mixing blades on the support frame according to the characteristics of different materials such as viscosity, density, and mixing requirements, or according to the needs of the process stage. The mixing device of this application can cover a variety of mixing process requirements, providing a configurable mixing solution without replacing the entire machine or making complex modifications, improving the flexibility and reconfigurability of the equipment, and reducing equipment investment and process conversion costs. When local mixing blades are worn or damaged, only the specific mixing blades can be replaced, without scrapping or repairing the entire mixing device, resulting in low maintenance costs and quick operation.

[0019] According to another aspect of the embodiments of this application, a stirring system is disclosed, comprising: a cylinder; a driving device disposed on the cylinder; the aforementioned stirring device, wherein the driving shaft is rotatably connected to the cylinder, the driving device is used to drive the driving shaft to rotate, and a first support assembly is located inside the cylinder.

[0020] In one exemplary embodiment, a feed pipe is provided on the inner wall of the cylinder, the feed pipe being used to guide material into the interior of the cylinder, the feed pipe being bent; wherein: the feed pipe is bent toward the inner wall of the cylinder; the feed pipe turns toward the side of the stirring direction.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0023] Figure 1 This is a schematic diagram of the structure of a stirring device provided in an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the stirring device provided in one embodiment of the present application, viewed from the axial direction of the drive shaft.

[0025] Figure 3 This is a schematic diagram of the structure of a stirring device from another perspective, provided as an embodiment of this application.

[0026] Figure 4 for Figure 3 A partial sectional view along the BB direction.

[0027] Figure 5 This is a partial cross-sectional view of a connection structure provided in an embodiment of this application.

[0028] Figure 6 for Figure 1 A magnified view of a portion of area A in the middle.

[0029] Figure 7 This is a schematic diagram of the structure of a stirring device from another perspective, provided as an embodiment of this application.

[0030] Figure 8 This is a structural diagram of a stirring system provided in an embodiment of this application.

[0031] The reference numerals in the attached drawings are explained as follows: 100-Stirring device; 1-Drive shaft; 2-First support assembly; 21-Support arm; 22-Support frame; 221-First end; 222-Second end; 223-Mounting surface; 23-Stirring blade; 231-First connecting piece; 2311-Slot; 232-Second connecting piece; 233-First plate segment; 234-Second plate segment; 24-Connecting structure; 241-Connecting column; 242-Connecting bolt; 243-Connecting nut; 244-Sealing ring; 25-Guide plate; 251-Guide surface; 26-Support base; 26 1-Gasket; 262-Locking bolt; 3-Second support assembly; 31-Fixing arm; 32-Support blade; 321-First side; 322-Second side; 33-Fixing seat; 331-Fixing bolt; 200-Cylinder; 201-Feed pipe; 300-Drive device; a-Stirring direction; b-Angle between the mounting surface and the radial plane of the support frame; c-Angle between the radial plane of the support frame and the axial direction of the drive shaft; d-Angle between the first plate segment and the second plate segment; e-Angle between the first and second sides of the support blade and the axis of the drive shaft. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this application will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art.

[0033] In the description of this invention, all connection relationships mentioned do not refer to direct connection of components, but rather to the ability to form a better connection structure by adding or removing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0036] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding" are understood to exclude the number itself, and "above", "below", "within" are understood to include the number itself.

[0037] Traditional industrial mixers are mostly integrally welded or fixed paddle designs, which have inherent drawbacks such as non-reconfigurability, difficult maintenance, low mixing efficiency, and inconvenient transportation and hoisting. When it is necessary to adapt to materials with different viscosities and densities, or different process requirements, it is often necessary to replace the entire equipment or carry out complex mechanical modifications, which is costly, inefficient, and cannot achieve rapid process switching.

[0038] Reference Figure 1 This application provides a stirring device 100, which includes a drive shaft 1 and at least two first support components 2.

[0039] The drive shaft 1 is driven externally, enabling it to rotate along its axial direction in the stirring direction a.

[0040] At least two first support components 2 are circumferentially spaced around the drive shaft 1. Each first support component 2 includes a support arm 21 and a support frame 22. One end of the support arm 21 is connected to the circumference of the drive shaft 1, and the other end of the support arm 21 is connected to the support frame 22. The support frame 22 is arc-shaped and extends from one end of the drive shaft 1 to the other end. The support frame 22 has a first end 221 and a second end 222 spaced apart along its extension direction. In the forward direction along the stirring direction a, the first end 221 is located in front of the second end 222. When the drive shaft 1 rotates, it can drive the support frame 22 to rotate along the stirring direction a. The support frame 22 is detachably provided with a plurality of stirring blades 23, which are sequentially spaced along the axial direction of the drive shaft 1 and extend out of the support frame 22 along the stirring direction a.

[0041] The stirring force in this application is transmitted through a drive shaft 1, a support arm 21, an arc-shaped support frame 22, and detachable stirring blades 23 connected in sequence. The arc-shaped support frame 22 extends from one end of the drive shaft 1 to the other end, and the support frame 22 and the drive shaft 1 are separately positioned at opposite ends of the axial direction of the support arm 21, ensuring that power is transmitted from the central drive shaft 1 to a larger radius of action. The detachable design of the stirring blades 23 allows operators to flexibly adjust the number, type, and position of the stirring blades 23 on the support frame 22 when adjusting material characteristics or process requirements, without replacing the entire machine, thus improving the equipment's process adaptability and reducing modification costs.

[0042] Moreover, multiple stirring blades 23 are spaced apart along the axial direction of the drive shaft 1 on the support frame 22 and extend out of the support frame 22 in the stirring direction a, so that multiple stirring blades 23 form multi-level, distributed mixing action points in the mixing area, reducing the mixing dead angle and improving the uniformity and efficiency of the mixed materials.

[0043] Specifically, the arc-shaped opening of the support frame 22 faces the drive shaft 1, and multiple stirring blades 23 are arranged sequentially at intervals along the arc-shaped extension direction of the support frame 22 to ensure that the stirring blades 23 on the support frame 22 have a large stirring range. In this embodiment, the arc-shaped support frame 22 is semi-circular. In other embodiments, the arc shape of the support frame 22 is not limited to a semi-circle, but can be an arc with other curvatures to adapt to different flow field requirements.

[0044] Furthermore, refer to Figure 2 In the forward direction along the stirring direction a, the first end 221 of the support frame 22 is located in front of the drive shaft 1, and the second end 222 of the support frame 22 is located behind the drive shaft 1. The support frame 22 is inclined relative to the axial direction of the drive shaft 1 along the direction from its first end 221 to its second end 222, thereby increasing the effective range of the support frame 22 and enhancing the axial fluid circulation generated by the support frame 22 when it rotates.

[0045] Preferably, the angle c between the radial plane of the support frame 22 and the axial direction of the drive shaft 1 is 10°~20°, specifically 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, and 20°. The inclined arrangement of the support frame 22 relative to the drive shaft 1 provides sufficient stirring range for the stirring blades 23, ensures an effective stirring process, and guarantees the structural strength of the support frame 22 during the stirring process.

[0046] Furthermore, the blade surfaces of the plurality of stirring blades 23 are tangentially arranged to the support frame 22, that is, the blade surfaces of the stirring blades 23 are perpendicular to the radial direction of the support frame 22. In another embodiment, the blade surfaces of the plurality of stirring blades 23 may also be arranged as arc surfaces conforming to the extension direction of the support frame 22. In addition, the blade surfaces of the stirring blades 23 may also be arranged at other angles to the radial direction of the support frame 22.

[0047] Reference Figure 3 The support frame 22 has a mounting surface 223 on the side near the drive shaft 1. In the forward direction along the stirring direction a, the mounting surface 223 is inclined forward in the direction away from the drive shaft 1.

[0048] Specifically, with the direction closest to the drive shaft 1 as the inside and the direction away from the drive shaft 1 as the outside, the inner side of the support frame 22 is the mounting surface 223, which is inclined outwards in the direction positively facing the stirring direction a. In this embodiment, the mounting surface 223 is in the shape of a semi-circular annular surface. When the support frame 22 rotates with the drive shaft 1, the inclined mounting surface 223 faces the fluid, reducing the fluid resistance during the stirring process of the support frame 22 and optimizing the hydrodynamic performance of the support frame 22. At the same time, the outwardly expanding mounting surface 223 increases the area of ​​action on the fluid, which has a certain effect of guiding the material to the inside of the support frame 22.

[0049] In practice, the angle b between the mounting surface 223 and the radial plane of the support frame 22 can be set between 40° and 50°. The tilt angle of the mounting surface 223 can be optimized according to the viscosity of the material being processed; for example, a larger tilt angle is used for high-viscosity materials.

[0050] In fact, the support frame 22 can be provided with multiple mounting surfaces 223 at different angles for mounting stirring blades 23 with different functions. The stirring blades 23 can be set on the inner side of the support frame 22 near the drive shaft 1, or on the outer side of the support frame 22 away from the drive shaft 1, or on the side of the support frame 22 facing the stirring direction a.

[0051] In this embodiment, the stirring blade 23 is disposed on the mounting surface 223. When the stirring blade 23 rotates with the support frame 22, the initial frontal surface of the stirring blade 23 can form an optimized angle with the direction of fluid flow, which helps to reduce the starting resistance of the stirring blade 23 and enables the stirring blade 23 to effectively stir the mixture fluid.

[0052] Specifically, such as Figure 4 As shown, the stirring blade 23 includes a first plate segment 233 and a second plate segment 234 connected in sequence. The first plate segment 233 is connected to the mounting surface 223 and extends along the inclined direction of the mounting surface 223. The second plate segment 234 is connected to the side of the first plate segment 233 away from the support frame 22 and facing the stirring direction a. The second plate segment 234 is bent relative to the first plate segment 233 towards the direction closer to the drive shaft 1.

[0053] The first plate segment 233 extends outward along the inclined direction of the mounting surface 223, and the second plate segment 234 is located outside the first plate segment 233, that is, the second plate segment 234 is located in front of the first plate segment 233 in the stirring direction a, so that the stirring blade 23 is in an outwardly expanding shape, increasing the stirring range and guiding the material flow from the outside to the inside of the stirring blade 23 near the drive shaft 1, thereby improving the stirring effect. The first plate segment 233 extending along the inclined direction of the mounting surface 223 also facilitates the installation of the first plate segment 233.

[0054] The second plate segment 234 bends towards the drive shaft 1 relative to the first plate segment 233. At the same time, in the stirring direction a, the second plate segment 234 is located in front of the first plate segment 233. This allows the second plate segment 234 to contact the material before the first plate segment 233 during the stirring process. Furthermore, the angle between the surface of the second plate segment 234 and the stirring fluid is smaller than that between the surface of the first plate segment 233 and the stirring fluid, which can reduce the initial stirring resistance between the stirring liquid and the material. Then, the inclined first plate segment 233 can change the material flow direction to a certain extent, further guiding the material to flow inward and improving the stirring effect.

[0055] Preferably, the included angle d between the first plate segment 233 and the second plate segment 234 is an obtuse angle, which reduces stirring resistance, improves the structural strength of the stirring blade 23, and reduces flow separation and energy loss caused by sharp bends in the first plate segment 233 and the second plate segment 234.

[0056] In this embodiment, the included angle d between the first plate segment 233 and the second plate segment 234 is between 140° and 160°, and can specifically be 150°. It should be noted that the included angle d between the first plate segment 233 and the second plate segment 234 needs to be designed in conjunction with the included angle b between the plane containing the mounting surface 223 and the radial plane of the support frame 22, to ensure that the plate surface of the second plate segment 234 is at least perpendicular to or can be inclined outward in the positive stirring direction a, so as to avoid guiding the material to the outside.

[0057] In fact, the first plate segment 233 and the second plate segment 234 can be formed by bending a single plate. Alternatively, the first plate segment 233 and the second plate segment 234 can also be fixed together by side welding.

[0058] Furthermore, the stirring blade 23 includes a first connecting piece 231 and a second connecting piece 232. The first connecting piece 231 is detachably connected to the support frame 22, and the second connecting piece 232 is located on the side of the first connecting piece 231 away from the support frame 22 and facing the stirring direction a. The second connecting piece 232 is detachably connected to the first connecting piece 231. The first connecting piece 231 and the second connecting piece 232 can be made of different materials. By replacing or disassembling the second connecting piece 232, different processes can be adapted, improving equipment flexibility and facilitating targeted replacement.

[0059] Furthermore, the elastic modulus of the second connecting piece 232 is greater than that of the first connecting piece 231. Specifically, the first connecting piece 231 has higher rigidity, providing structural support for the second connecting piece 232. As a component connecting to the support frame 22, it also improves the installation strength of the stirring blade 23. Meanwhile, the second connecting piece 232 has a larger elastic modulus and greater flexibility than the first connecting piece 231. The first and second connecting pieces 231 are arranged sequentially along the forward stirring direction a. During stirring, the second connecting piece 232 first cuts the material, allowing it to better adapt to changes in the flow field. Furthermore, the high elasticity of the second connecting piece 232 creates micro-vortices in the stirred material, improving the stirring effect.

[0060] Preferably, the second connecting piece 232 can be made of a corrosion-resistant and non-adhesive elastic material, such as PTFE, to adapt to changes in the flow field and reduce adhesion. When handling highly corrosive or easily adhering materials, the second connecting piece 232 can effectively reduce corrosion and scaling, maintain long-term stability of stirring efficiency, and significantly extend the continuous operation cycle.

[0061] Furthermore, the cross-section of the second connecting piece 232 along the stirring direction a is an airfoil shape with an outward convexity and an inward flatness, which optimizes the hydrodynamic performance of the second connecting piece 232.

[0062] In this embodiment, the first plate segment 233 and the second plate segment 234 are formed on the first connecting piece 231, and the second connecting piece 232 is detachably connected to the second plate segment 234 of the first connecting piece 231 and connected to the side of the second plate segment 234 away from the first plate segment 233.

[0063] Specifically, the first connecting piece 231 has a first side 321 and a second side 322. The first side 321 of the first connecting piece 231 is connected to the support frame 22. The second side 322 of the first connecting piece 231 has a slot 2311 along its extending direction. The opening of the slot 2311 faces away from the support frame 22 and towards the stirring direction a. One side of the second connecting piece 232 is interference-fitted into the slot 2311. The second connecting piece 232 can be quickly installed or removed by plugging and unplugging, improving on-site installation and removal efficiency and adapting to scenarios where multiple second connecting pieces 232 need to be installed or replaced.

[0064] Furthermore, in combination Figure 1 and Figure 5 The support frame 22 is provided with a connecting structure 24, which includes a connecting column 241. One axial end of the connecting column 241 is fixedly connected to the surface of the support frame 22, and the stirring blade 23 is detachably connected to the other axial end of the connecting column 241 so that the stirring blade 23 and the support frame 22 are spaced apart.

[0065] The connecting column 241 of this application is supported between the stirring blade 23 and the support frame 22, so that the stirring blade 23 can be suspended on the support frame 22. After the stirring blade 23 is installed, there is a gap between it and the surface of the support frame 22, rather than direct contact. In this way, there is a flow gap between the blade and the support frame 22, which allows the material fluid to pass through, reduces the dead zone of stirring resistance, and allows both sides of the blade to contact the fluid, thereby improving the stirring efficiency.

[0066] Furthermore, multiple connection structures 24 are provided, with at least two connection structures 24 being detachably connected between a stirring blade 23 and a support frame 22.

[0067] Furthermore, multiple connecting structures 24 are spaced apart along the extending direction of the support frame 22. Specifically, the connecting structures 24 are disposed on the mounting surface 223 of the support frame 22, and in the forward direction along the stirring direction a, the connecting structures 24 are located on the front side of the mounting surface 223.

[0068] One axial end of the connecting column 241 can be welded to the support frame 22. The other axial end of the connecting column 241 can be connected to the stirring blade 23 via the connecting bolt 242.

[0069] Specifically, the connecting structure 24 also includes a connecting bolt 242, a connecting nut 243, and a sealing ring 244. The end of the connecting column 241 away from the support frame 22 is provided with a threaded hole. The stirring blade 23 is locked onto the threaded hole of the connecting column 241 by the connecting bolt 242. The connecting nut 243 is sleeved on the connecting bolt 242 and is located between the stirring blade 23 and the connecting column 241. The end face of the connecting nut 243 near the connecting column 241 is provided with an installation groove. The sealing ring 244 is set in the installation groove. The sealing ring 244 can seal between the end faces of the connecting nut 243 and the connecting column 241, preventing materials from entering the threaded hole and playing a hygienic design role.

[0070] In addition, the stirring blade 23 can also be connected to the support frame 22 by other detachable methods such as snap-fit ​​or pin. Alternatively, the stirring blade 23 can also be attached to the support frame 22 in a close fit.

[0071] When the support frame 22 rotates, a stable but inefficient solidified vortex easily forms in the area between its inner side, i.e., the side closest to the drive shaft 1, and the drive shaft 1. This vortex consumes energy but has low mixing effect. Furthermore, the first support assembly 2 also includes at least one guide plate 25, which is disposed on the side of the support frame 22 closest to the drive shaft 1. The guide plate 25 extends in the direction close to the drive shaft 1, and its surface is inclined or perpendicular to the stirring direction a.

[0072] The surface of the guide plate 25 is not along the flow line direction, but is transversely or obliquely cut to the flow line. When the support frame 22 rotates and the inner fluid rotates accordingly, the guide plate 25, which is inclined or perpendicular to the stirring direction a, will disturb the material between the support frame 22 and the drive shaft 1, thereby effectively breaking the solidified vortex and allowing the material between the support frame 22 and the drive shaft 1 to participate in the mixing, which enhances the mixing efficiency and solves the problem of weak central mixing.

[0073] The guide vane 25 can be welded or bolted to the support frame 22. The tilt angle of the guide vane 25 can be optimized according to the fluid viscosity. In addition, multiple guide vanes 25 distributed axially can be arranged on a single support frame 22.

[0074] In this embodiment, the surface of the guide plate 25 is parallel to the radial plane of the support frame 22, so that the guide surface 251 has a certain inclination angle with the stirring direction a, thereby reducing stirring resistance. The guide plate 25 has an arc-shaped side that fits and connects with the inner circumference of the support frame 22, which enhances the structural rigidity of the support frame 22 and also improves the installation stability of the guide plate 25.

[0075] Furthermore, the deflector plate 25 has two opposing sides extending toward the center of the support frame 22, and an inner side connected to the side of the two sides near the center of the support frame 22.

[0076] Furthermore, the guide plate 25 is bent at the side near the drive shaft 1 to form a guide surface 251. In the forward direction along the stirring direction a, the guide surface 251 is inclined backward towards the drive shaft 1. The guide surface 251 formed by the side bending of the guide plate 25 can guide the material fluid to change direction more smoothly, reduce sudden flow separation and eddy shedding, thereby reducing turbulent energy consumption while achieving the guiding function.

[0077] Moreover, the middle part of the arc-shaped support frame 22 is the part of the support frame 22 furthest from the drive shaft 1, and the middle part of the support frame 22 has greater stress. In this embodiment, at least one guide plate 25 is provided in the middle part of the support frame 22, which can not only guide the material that is far away from the drive shaft 1 to the direction closer to the drive shaft 1, thereby improving the stirring effect, but also improve the structural strength of the support frame 22.

[0078] Reference Figure 6 The support arm 21 has a support seat 26 at one end facing away from the support frame 22. The support seats 26 of at least two first support components 2 are detachably engaged together on the drive shaft 1. The engagement of multiple support seats 26 provides a large contact surface and clamping force, ensuring that the first support components 2 are firmly connected on the drive shaft 1.

[0079] The first support assembly 2 includes at least two support arms 21. The at least two support arms 21 are spaced apart along the axial direction of the drive shaft 1 to improve the installation stability of the support frame 22.

[0080] At least one support 26 is keyed to the drive shaft 1. This reduces the risk of circumferential slippage between the support 26 and the drive shaft 1, reliably achieves torque transmission, and allows the support 26 to be quickly positioned according to the key settings on the drive shaft 1, improving installation efficiency. The key on the drive shaft 1 can be a flat key, spline, etc., and at least one support 26 has a keyway that mates with the key.

[0081] The first support component 2 can be installed as a whole module and easily installed on the standard position of the drive shaft 1 or removed from the drive shaft 1, realizing modular reconstruction. Different first support components 2 can be adaptively replaced according to process requirements and equipment volume, thereby adjusting support frames 22 with different curvatures, sizes, and tilt angles.

[0082] In this embodiment, two sets of first support components 2 are provided around the periphery of the drive shaft 1. Each first support component 2 has a support frame 22 and two support arms 21 spaced apart along the drive shaft 1. The four support arms 21 of the two first support components 2 are detachably joined together and locked on the drive shaft 1.

[0083] Specifically, a gasket 261 is provided between the support seats 26 that are together on the drive shaft 1, and multiple locking bolts 262 are passed through the gasket 261 and locked between adjacent support seats 26 to improve the locking stability of the support seats 26.

[0084] Furthermore, if the internal volume of the mixing equipment meets the requirements, the first support assembly 2 can also be provided in three or more sets around the periphery of the drive shaft 1. In addition, the support arm 21 can be columnar to reduce mixing resistance.

[0085] Furthermore, refer to Figure 6 and Figure 7 The stirring device 100 of this application further includes a second support assembly 3, which is located on the side of the support frame 22 near the drive shaft 1. The second support assembly 3 includes at least one fixed arm 31 and a support blade 32. One end of the fixed arm 31 is connected to the periphery of the drive shaft 1, and the other end of the fixed arm 31 is connected to the support blade 32. The rotation of the drive shaft 1 causes the support blade 32 to rotate along the stirring direction a.

[0086] The support blades 32 are spaced between the support frame 22 and the drive shaft 1, and the second support assembly 3 forms a stirring unit with a smaller radius of action and closer to the drive shaft 1. The second support assembly 3 works in conjunction with the outer first support assembly 2 to form a two-stage stirring system, which enhances the disturbance of the fluid near the drive shaft 1, plays a full-range stirring role, further eliminates the dead zones in the stirring and mixing, and improves the overall mixing uniformity.

[0087] Moreover, the support blade 32 is connected to the drive shaft 1 via the fixed arm 31, so that the second support assembly 3 as a whole can balance the external torque generated by the stirring blade 23 and the support frame 22 located on the outside, reduce the torque of the drive shaft 1, and enhance the stability and bending resistance of the drive shaft 1.

[0088] Furthermore, the fixed arm 31 is detachably connected to the drive shaft 1. The second support assembly 3 is an optional modular structure, which can be selectively installed on the drive shaft 1 according to process requirements and installation space, thereby improving the flexibility of the stirring device 100.

[0089] Furthermore, the second support assembly 3 includes two sets. The fixed arm 31 has a fixed seat 33 at one end facing away from the support blade 32. The fixed seats 33 of the two second support assemblies 3 are detachably engaged together with the drive shaft 1. The engagement of multiple fixed seats 33 provides a larger contact surface and clamping force, ensuring that the connection of the second support assembly 3 on the drive shaft 1 is firm.

[0090] The second support assembly 3 includes at least two fixed arms 31. The at least two fixed arms 31 are spaced apart along the axial direction of the drive shaft 1 to improve the installation stability of the mounting bracket. Between the two second support assemblies, the fixed seats 33 on the multiple fixed arms 31 are paired together to engage with the drive shaft 1. The specific connection method of the fixed seats 33 can refer to the connection method of the support base 26. Specifically, a gasket 261 is sandwiched between the engaging fixed seats 33, and they are connected together by fixing bolts 331.

[0091] At least one fixed seat 33 is keyed to the drive shaft 1. This reduces the risk of circumferential slippage between the fixed seat 33 and the drive shaft 1, reliably achieves torque transmission, and allows the fixed seat 33 to be quickly positioned according to the key settings on the drive shaft 1, improving installation efficiency. The key on the drive shaft 1 can be a flat key, spline, etc., and at least one fixed seat 33 has a keyway that mates with the key.

[0092] The second support component 3 can be installed as a whole module and easily installed on or removed from the standard position of the drive shaft 1, realizing modular reconstruction. Different second support components 3 can be flexibly disassembled and replaced according to process requirements and equipment size.

[0093] It should be noted that the mounting position of the fixed seat 33 on the drive shaft 1 is offset from that of the support seat 26 of the first support assembly 2 to avoid interference. In this application, the fixed seat 33 is disposed between the two support seats 26 of the first support assembly 2, so that the second support assembly 3 is located within the space enclosed by the support frame 22 and the two support arms 21. Specifically, four key blocks are provided at axial intervals on the outer peripheral wall of the drive shaft 1. The two outer key blocks are used for key connection with the support seat 26, and the two inner key blocks are used for connection with the fixed seat 33, so that the support seat 26 and the fixed seat 33 can be aligned and installed, improving installation efficiency.

[0094] Furthermore, the second support assembly 3 includes two sets, which are centrally symmetrical about the drive shaft 1. This improves the stirring effect of the stirring device 100 and strengthens the structure of the drive shaft 1.

[0095] Furthermore, the second support assembly 3 includes two fixed arms 31 spaced apart along the axial direction of the drive shaft 1, thereby improving the installation strength of the support blades 32.

[0096] Furthermore, the support blade 32 has a first side 321 and a second side 322 that are axially opposite each other along the drive shaft 1. The first side 321 of the support blade 32 is inclined towards the drive shaft 1 relative to the second side 322. The support blades 32 and the two fixed arms 31 of the two sets of second support assemblies 3 form a parallelogram structure. The parallelogram structure is a geometrically stable structure. The inclined design on both sides of the support blade 32 allows the force to be transmitted to the drive shaft 1 more effectively through the four fixed arms 31 when the support blade 32 is subjected to fluid pressure, avoiding excessive local stress, enhancing the structural rigidity and deformation resistance of the second support assembly 3, and ensuring its long-term operational stability and reliability. In addition, the inclined design on both sides of the support blade 32 causes the second side 322 of the support blade 32 to extend away from the drive shaft 1 relative to the first side 321, increasing the stirring range of the support blade 32, stirring the central area between the drive shaft 1 and the support frame 22, and improving the stirring efficiency.

[0097] Preferably, the angle e between the first side 321 to the second side 322 of the support blade 32 and the axis of the drive shaft 1 can be 10° to 20°, ensuring a certain guiding and stirring effect while also ensuring the strength of the structure. Specifically, the angle e between the first side 321 to the second side 322 of the support blade 32 and the axis of the drive shaft 1 can be selected as 15°.

[0098] Furthermore, in the forward direction along the stirring direction a, the blade surface of the support blade 32 is tilted backward in a direction away from the drive shaft 1. The blade surface of the support blade 32 can reduce stirring resistance and guide the material to flow outward in a direction away from the drive shaft 1. The tilt of the support blade 32 can complement the flow field generated by the first support assembly 2 (such as the mounting surface 223 of the support frame 22, the stirring blade 23, the guide plate, etc.), thereby improving the stirring effect.

[0099] In this embodiment, the support blade 32 is in the shape of a flat plate. Alternatively, the support blade 32 may also be in the shape of an arc-shaped plate.

[0100] The fixed arm 31 has a side plane, which faces the stirring direction a and is inclined to the stirring direction a. The design of the side plane can reduce the resistance of the fixed arm 31 when it rotates with the drive shaft 1, and at the same time play a certain role in guiding the flow.

[0101] In a specific embodiment, the support blade 32 is connected to two fixed arms 31. The side planes on the two fixed arms 31 are far apart from each other in the opposite direction of stirring a. The blade surface of the support blade 32 and the side planes on the two fixed arms 31 are inclined, which can guide the material to the space between the first support component 2 and the second support component 3 to a certain extent, increase the material flow, and improve the stirring efficiency.

[0102] In this application, through the arrangement and combination of the three-level modules of the first support component 2, the stirring blade 23, and the second support component 3, users can quickly configure the parameters of the stirring device 100, such as the radius of action, stirring area, and the ratio of shear force to pumping capacity, in a Lego-like manner. One set of stirring device 100 can cover a wide range of processes, from low-speed mixing to high-speed dispersion, and from low-viscosity aqueous agents to high-viscosity pastes, flexibly realizing multiple uses of one machine.

[0103] Moreover, the mixing device 100 of this application achieves ultra-high mixing efficiency with low energy consumption by determining the structural parameters of the support frame 22, the mixing blade 23, the support blade 32, etc., and reduces the mixing dead zone inside the mixing equipment.

[0104] Reference Figure 8 This application also provides a stirring system, which includes a cylinder 200, a drive device 300, and the aforementioned stirring device 100. The cylinder 200 is used to contain the material to be stirred. The drive device 300 is disposed on the cylinder 200. The drive shaft 1 of the stirring device 100 is rotatably connected to the cylinder 200, and the drive device 300 is used to drive the drive shaft 1 to rotate. The first support assembly 2 is located inside the cylinder 200.

[0105] This application provides a highly flexible and easily reconfigurable mixing equipment. Users can quickly configure mixing cores of different specifications and functions on the standard cylinder 200 and drive unit 300 according to production needs, thereby responding to process changes at the lowest cost and fastest speed, and improving the flexibility of the mixing system.

[0106] Furthermore, the inner bottom surface of the cylinder 200 is hemispherical with the opening facing upwards, and the support frame 22 of the first support component 2 is arc-shaped and matches the shape of the inner bottom surface of the cylinder 200, thereby improving the stirring effect.

[0107] Furthermore, a feed pipe 201 is provided on the inner wall of the cylinder 200. The feed pipe 201 is positioned away from the stirring device 100 and is located above the drive shaft 1. The feed pipe 201 is used to guide materials into the interior of the cylinder 200. Specifically, the feed pipe 201 is bent, either towards the inner wall of the cylinder 200 or towards the stirring direction. This allows the material to enter along the inner wall of the cylinder 200 or tangentially, allowing it to flow along the original flow direction, ensuring uniform mixing, reducing disruption to the stirring flow field, and improving the stirring effect. Moreover, the bent feed pipe 201 disperses the impact force of the feed, reducing the continuous impact of high-pressure feed on the stirring device 100, reducing wear on the stirring device 100 and vibration of the drive shaft 1, thus reducing fatigue wear on the stirring device 100 and extending the equipment maintenance cycle and service life.

[0108] Furthermore, if the feed pipe 201 bends towards the stirring direction, it can guide the material tangentially into the cylinder 200 along the stirring direction. The stirring system can then utilize the kinetic energy of the feed to create an initial vortex within the cylinder 200. Combined with the rotation of the first support component 2, this allows for faster material diffusion, shortening the mixing time. This is particularly suitable for mixing operations in large-capacity mixing tanks, reducing the power consumption required for stirring. It should be noted that there can be multiple feed pipes 201, and the bending directions of these multiple feed pipes 201 can be different. In fact, the feed pipe 201 can also bend towards the stirring direction with its opening facing the inner wall of the cylinder.

[0109] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

Claims

1. A stirring device, characterized in that, include: The drive shaft can rotate axially in the stirring direction; At least two first support assemblies are circumferentially spaced around the drive shaft. Each first support assembly includes a support arm and a support frame. One end of the support arm is connected to the periphery of the drive shaft, and the other end of the support arm is connected to the support frame. The support frame is arc-shaped and extends from one end of the drive shaft to the other end. The support frame has a first end and a second end spaced apart along its extension direction. In the forward direction along the stirring direction, the first end is located in front of the second end. The rotation of the drive shaft causes the support frame to rotate along the stirring direction. The support frame is detachably provided with a plurality of stirring blades, which are distributed sequentially at intervals along the axial direction of the drive shaft, and the stirring blades extend out of the support frame along the stirring direction; The stirring blade includes a first connecting piece and a second connecting piece. The first connecting piece is detachably connected to the support frame, and the second connecting piece is located on the side of the first connecting piece away from the support frame. The second connecting piece is detachably connected to the first connecting piece. The elastic modulus of the second connecting piece is greater than that of the first connecting piece; The support frame has a mounting surface on the side near the drive shaft, and in the forward direction along the stirring direction, the mounting surface is inclined forward in the direction away from the drive shaft; The stirring blade is mounted on the mounting surface; The stirring blade includes a first plate segment and a second plate segment connected in sequence. The first plate segment is connected to the mounting surface and extends along the inclined direction of the mounting surface. The second plate segment is connected to the side of the first plate segment away from the support frame and facing the stirring direction. The second plate segment is bent relative to the first plate segment towards the direction closer to the drive shaft. The angle between the first plate segment and the second plate segment is an obtuse angle.

2. The stirring device according to claim 1, characterized in that, The support frame is provided with a connecting structure, which includes a connecting column. One axial end of the connecting column is fixedly connected to the surface of the support frame, and the stirring blade is detachably connected to the other axial end of the connecting column so that the distance between the stirring blade and the support frame is set.

3. The stirring device according to claim 1, characterized in that, The arc-shaped opening of the support frame faces the drive shaft, and the plurality of stirring blades are arranged sequentially at intervals along the arc-shaped extension direction of the support frame; In the forward direction along the stirring direction, the first end of the support frame is located in front of the drive shaft, and the second end of the support frame is located behind the drive shaft; the angle between the radial plane of the support frame and the axial direction of the drive shaft is 10°~20°. The blade surfaces of the plurality of stirring blades are arranged tangentially to the support frame, or the blade surfaces of the plurality of stirring blades are arranged as arc surfaces in line with the extension direction of the support frame.

4. The stirring device according to claim 1, characterized in that, The first support assembly further includes at least one guide plate, which is disposed on the side of the support frame near the drive shaft. The guide plate extends in the direction close to the drive shaft, and the surface of the guide plate is inclined or perpendicular to the stirring direction.

5. The stirring device according to claim 4, characterized in that, The guide plate is bent at the side near the drive shaft to form a guide surface, and in the forward direction along the stirring direction, the guide surface is inclined backward towards the drive shaft; and / or At least one of the guide plates is disposed in the middle of the support frame.

6. The stirring device according to claim 1, characterized in that, The support arm is provided with a support seat at one end facing away from the support frame, and the support seats of at least two first support components are detachably joined together on the drive shaft; The first support assembly includes at least two support arms, which are spaced apart along the axial direction of the drive shaft. At least one of the support seats is keyed to the drive shaft.

7. The stirring device according to claim 1, characterized in that, Also includes: The second support assembly is located on the side of the support frame near the drive shaft. The second support assembly includes at least one fixed arm and a support blade. One end of the fixed arm is connected to the periphery of the drive shaft, and the other end of the fixed arm is connected to the support blade. The rotation of the drive shaft causes the support blade to rotate along the stirring direction. The fixed arm is detachably connected to the drive shaft.

8. The stirring device according to claim 7, characterized in that, In the forward direction along the stirring direction, the blade surface of the support blade is tilted backward in a direction away from the drive shaft; and / or The fixed arm is provided with a side plane that is inclined to the stirring direction.

9. The stirring device according to claim 7, characterized in that, The second support assembly includes two sets. The fixed arm is provided with a fixed seat at one end facing away from the support blade. The fixed seats of the two second support assemblies are detachably engaged with the drive shaft. At least one of the mounting brackets is keyed to the drive shaft.

10. The stirring device according to claim 7, characterized in that, The second support assembly includes two sets, and the two second support assemblies are centrally symmetrical about the drive shaft; The second support assembly includes two fixed arms spaced apart along the axial direction of the drive shaft; the support blade has a first side and a second side opposite to each other along the axial direction of the drive shaft, the first side of the support blade is inclined relative to the second side in a direction closer to the drive shaft, and the support blades and the two fixed arms of the two sets of the second support assemblies form a parallelogram structure.

11. A stirring system, characterized in that, include: cylindrical body; A driving device is mounted on the cylinder. The stirring device according to any one of claims 1 to 10, wherein the drive shaft is rotatably connected to the cylinder, the drive device is used to drive the drive shaft to rotate, and the first support assembly is located inside the cylinder.

12. The stirring system according to claim 11, characterized in that, The inner wall of the cylinder is provided with a feed pipe, which is used to guide the material into the inside of the cylinder. The feed pipe is bent. Wherein: the feed pipe is bent toward the inner wall of the cylinder; the feed pipe turns toward the side of the stirring direction.

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