A side-type magnetic stirring device and method

Abstract

This invention discloses a side-mounted magnetic stirring device and method. The device includes a storage unit, a spherical stir bar placed inside it, and a magnetic stirrer disposed on its outer wall. The spherical stir bar has an embedded magnet, and the magnetic stirrer drives the spherical stir bar to roll and / or rotate through a magnetic field. The outer wall of the storage unit may be provided with a slide rail or guide groove, and the magnetic stirrer can move axially via a slider or roller; it may also include a fixing component and an adjusting screw for connecting the magnetic stirrer and the liquid-pushing piston and adjusting their relative positions. The method includes placing the spherical stir bar inside the storage unit, starting the magnetic stirrer to drive stirring, and making the magnetic stirrer move synchronously with the liquid-pushing piston. This invention requires no modification to the opening, does not occupy bottom space, has no leakage risk, and is easy to assemble and disassemble, making it particularly suitable for tubular liquid storage units with limited bottom space or requiring temporary stirring.

Description

Technical Field

[0001] This invention belongs to the field of fluid stirring and mixing technology, specifically relating to a side-mounted magnetic stirring device and method, which is particularly suitable for tubular storage units with a liquid-pushing piston, limited bottom space, and the need for temporary additional stirring function. Background Technology

[0002] Tubular liquid storage units are widely used in the storage, reaction, and mixing processes of liquid materials due to their advantages such as compact structure, good sealing performance, and ease of continuous production. For liquid storage systems that require maintaining homogeneity or promoting reaction, stirring is a key process to ensure uniform mixing of materials and achieve the required heat and mass transfer efficiency.

[0003] Traditional tubular liquid storage unit agitation technology mainly employs a bottom-mounted agitator, where an agitator shaft and impeller are positioned at the center of the bottom surface of the storage unit, driven by a bottom-mounted motor to achieve agitation. While this approach is technically mature and offers high agitation efficiency, it suffers from significant structural limitations: First, the bottom agitator requires installation space beneath the storage unit, which is often insufficient to accommodate the agitator drive mechanism in situations with complex external structures (such as valves, pipelines, support structures, temperature control jackets, or other process equipment). Second, for existing equipment without a pre-existing agitator interface, adding an agitation step requires structural modifications to the storage unit's base plate, resulting in high construction difficulty and cost, and potentially affecting the equipment's sealing performance and pressure resistance. Furthermore, maintaining the shaft seal of the bottom agitator shaft is difficult, posing a leakage risk, and it is unsuitable for high-viscosity materials or systems containing solid particles.

[0004] Existing technologies also employ top-insertion stirring solutions, but these solutions are also limited by the availability of the top opening and the load-bearing capacity of the supporting structure, making them difficult to implement for closed tubular liquid storage units or devices with limited top space.

[0005] Especially for syringe-type and sprayer-type tubular storage units with built-in liquid-pushing pistons, traditional stirring cannot achieve synchronous movement with the piston or prevent sedimentation on the piston surface, easily leading to problems such as material deposition, stratification, and uneven discharge. Therefore, there is an urgent need for a side-mounted, perforated magnetic stirring technology that can move synchronously with the piston and achieve piston surface adhesion stirring. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a side-mounted magnetic stirring device and method. By setting the magnetic stirrer on the outer wall of the storage unit, the internal spherical stir bar is driven to roll and / or rotate, realizing a stirring function without shaft seal, without opening, and without occupying bottom space. It can also move synchronously with the liquid-pushing piston, meeting the application requirements of syringe-type storage units such as sprayers.

[0007] The device adopts a modular structure, consisting of a storage unit, a spherical stirrer, and a magnetic stirrer. The magnetic stirrer can move along the axial direction of the storage unit and can move synchronously with the liquid-pushing piston to form a complete closed loop of stirring operation.

[0008] Specifically, this invention achieves physical separation of the stirring function from the storage unit by installing a magnetic stirrer on the outer wall of the storage unit. The magnetic field penetrates the pipe wall to drive a spherical stirrer with embedded magnets to roll and / or rotate. A sliding rail and slider or guide groove and roller combination structure allows the magnetic stirrer to move axially along the storage unit, adapting to stirring requirements at different liquid levels. The magnetic stirrer is connected to the pusher piston by the fixing component and the adjusting screw; the adjusting screw adjusts the relative distance between the magnetic stirrer and the fixing component, allowing the magnetic stirrer to move synchronously with the pusher piston and remain below the material surface, achieving continuous stirring throughout the discharge process. Ridges, grooves, protrusions, or brush structures on the surface of the spherical stirrer enhance the stirring shear force or achieve a cleaning function for the inner wall of the storage unit. Multiple sets of magnets with opposite polarities are spaced circumferentially along the storage unit to form a multi-directional stirring flow field, improving stirring efficiency.

[0009] Thus, the present invention achieves a complete structural design from the storage unit to the stirring device, significantly improving the flexibility of the stirring function, the sealing reliability and the space adaptability.

[0010] According to one aspect of the present invention, a side-mounted magnetic stirring device is provided, comprising: a storage unit; a liquid-pushing piston disposed inside the storage unit; a spherical stir bar disposed inside the storage unit and above the liquid-pushing piston, the spherical stir bar having a magnet embedded therein; and a magnetic stirrer disposed on the outer wall of the storage unit; the magnetic stirrer driving the spherical stir bar to roll and / or rotate within the storage unit via a magnetic field.

[0011] Preferably, the outer wall of the storage unit is provided with a slide rail or guide groove, and the magnetic stirrer is correspondingly provided with a slider or roller; when the storage unit is provided with the slide rail, the magnetic stirrer slides with the slide rail through the slider; when the storage unit is provided with the guide groove, the magnetic stirrer rolls with the guide groove through the roller; the magnetic stirrer moves along the axial direction of the storage unit through the sliding engagement or the rolling engagement.

[0012] Preferably, the device further includes: a fixing member for connecting the magnetic stirrer to the liquid-pushing piston in the storage unit; and an adjusting screw for adjusting the relative distance between the magnetic stirrer and the fixing member, so that the magnetic stirrer maintains an adjustable relative position with the storage unit during the movement of the liquid-pushing piston.

[0013] Preferably, an elastic element is provided between the magnetic stirrer and the fixing member. The elastic element is used to buffer the impact force of the magnetic stirrer during the movement of the liquid-pushing piston and to maintain the fit between the magnetic stirrer and the storage unit.

[0014] Preferably, the surface of the spherical stirrer is provided with a plurality of raised stirring features, the stirring features including at least one of ridges, grooves or protrusions, for enhancing the shear force during the stirring process; or, the surface of the spherical stirrer is provided with a brush structure for cleaning the inner wall of the storage unit during the stirring process.

[0015] Preferably, the magnetic stirrer includes at least two sets of magnets, which are arranged circumferentially around the storage unit; each set of magnets contains at least one magnet, and the magnetic poles on opposite sides of adjacent sets of magnets have opposite polarities, which are used to drive the spherical stir bar to roll and / or rotate within the storage unit to form a multidirectional stirring flow field.

[0016] According to another aspect of the present invention, a side-mounted magnetic stirring method is provided, implemented based on the side-mounted magnetic stirring apparatus described in any of the preceding claims, comprising the following steps: Place the ball-shaped stir bar inside the storage unit; A magnetic stirrer is placed on the side of the outer wall of the storage unit, and the spherical stir bar is driven to roll and / or rotate within the storage unit by a magnetic field; During the process of the liquid-pushing piston pushing the material out, the magnetic stirrer moves synchronously with the liquid-pushing piston to maintain continuous stirring of the material in the storage unit.

[0017] Preferably, the method further includes: adjusting the relative position between the magnetic stirrer and the fixing member by adjusting the pitch screw, so that the magnetic stirrer is always below the material liquid level in the storage unit during the movement of the liquid pushing piston; wherein, the fixing member is used to connect the magnetic stirrer and the liquid pushing piston, and the adjusting pitch screw is used to adjust the relative distance between the magnetic stirrer and the fixing member.

[0018] Preferably, the speed at which the magnetic stirrer moves axially along the storage unit is consistent with the speed at which the liquid-pushing piston moves; or, by adjusting the pitch screw or by external manual operation, the speed at which the magnetic stirrer moves axially along the storage unit is different from the speed at which the liquid-pushing piston moves, so as to achieve fixed-point stirring or segmented stirring of the magnetic stirrer in the storage unit.

[0019] Preferably, when the surface of the spherical stir bar is provided with a brush structure, during the rolling and / or rotation of the spherical stir bar, the brush structure contacts the inner wall of the storage unit to remove material residue or scale adhering to the inner wall of the storage unit.

[0020] Compared with the prior art, the present invention has the following beneficial effects: Extremely simple structure: No need to open holes or modify the tube wall, just place the ball-shaped magnetic stir bar inside the tube and fix the magnetic stirrer on the outside to work.

[0021] Easy to assemble and disassemble: The magnetic stirrer has no mechanical connection to the tube body, and can be assembled and disassembled at any time, making it especially suitable for temporary stirring needs.

[0022] Zero leakage risk: The shaftless structure fundamentally solves the sealing problem of traditional agitators and is suitable for applications with high sealing requirements.

[0023] Highly adaptable to space: The external side drive does not occupy any space at the bottom of the pipe, solving the mixing problem of equipment with complex bottom mechanisms and limited space.

[0024] Low maintenance cost: The stir bar is an independent consumable, easy to replace, and does not require disassembling pipelines or stopping production for maintenance.

[0025] The stirring efficiency can be optimized: the shear force can be enhanced by setting features such as ridges, grooves and protrusions on the surface of the stir bar; a multi-directional stirring flow field can be formed by setting multiple sets of magnets with opposite polarities at circumferential intervals; and the pipe wall can be cleaned simultaneously by using a brush structure.

[0026] Piston-linked anti-settling: The magnetic stirrer moves synchronously with the liquid-pushing piston, ensuring that the spherical stir bar is always located in the near-wall area above the piston. When the magnetic stirrer moves synchronously with the liquid-pushing piston, the spherical stir bar effectively breaks up the stagnant boundary layer formed on the piston surface, preventing solid particles from settling or high-viscosity materials from accumulating at the piston interface. This fundamentally avoids material deposition, stratification, and agglomeration, significantly improving the uniformity of piston-propelled discharge. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the side-mounted magnetic stirring device in an embodiment of the present invention, showing the position and arrangement of the storage unit, the liquid-pushing piston, the spherical stirrer, the magnetic stirrer, and the discharge port. Figure 1 In the middle, the discharge port 5 is located at the lower end of the storage unit 1, and is not directly shown due to the obstruction of the viewing angle; Figure 2 This is a schematic diagram of the linkage structure of the side-mounted magnetic stirring device in an embodiment of the present invention, showing the connection and cooperation relationship between the magnetic stirrer, the fixing member, the adjusting screw, the roller, the support frame, and the liquid-pushing piston (the elastic element is not shown in the figure). Figure 3 This is a flowchart of the side magnetic stirring method provided in an embodiment of the present invention.

[0029] In the diagram, 1-storage unit, 2-spherical stir bar, 3-magnetic stirrer, 4-built-in magnet, 5-discharge port; 6-Pushing piston, 7-Fixed component, 8-Adjusting screw, 9-Roller, 10-Support frame. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Terminology Explanation To facilitate understanding of the technical solution of this invention, some technical terms appearing in the specification are explained as follows: Slide rail and slider: The slide rail refers to the guide rail structure that is fixedly installed on the outer wall of the storage unit, and the slider refers to the mating part that is fixedly connected to the magnetic stirrer and slides on the slide rail. The two work together to realize the linear movement of the magnetic stirrer along the axial direction of the storage unit.

[0032] Guide groove and roller: The guide groove refers to the groove structure opened on the outer wall of the storage unit, and the roller refers to the wheel-shaped mating part that is rotatably connected to the magnetic stirrer and rolls in the guide groove. The two work together to realize the rolling movement of the magnetic stirrer along the axial direction of the storage unit.

[0033] Fixing component: A mechanical connector used to connect the magnetic stirrer to the liquid-pushing piston. It can be clamped, snapped or threaded, so that the magnetic stirrer can move synchronously with the liquid-pushing piston.

[0034] Adjustable screw: A threaded adjustment structure used to adjust the relative distance between the magnetic stirrer and the stationary component. By rotating the screw, the axial position of the magnetic stirrer can be changed to adapt to different liquid levels or stirring depth requirements.

[0035] Elastic element: disposed between the magnetic stirrer and the fixing member, used to buffer the impact force during the movement of the liquid-pushing piston and maintain the fit between the magnetic stirrer and the outer wall of the storage unit.

[0036] Spherical stir bar: A spherical stirring element with an embedded magnet that can roll and / or rotate under the action of an external magnetic field. Its surface may be provided with stirring features such as ridges, grooves, and protrusions, or it may be equipped with a flocked layer, fiber bundles, sleeve-type brush sleeves, or other brush structures.

[0037] Magnet group: A magnetic unit consisting of at least one magnet. Multiple magnet groups are arranged circumferentially along the storage unit. The magnetic poles of adjacent magnet groups on opposite sides have opposite polarities, which are used to generate a spatial alternating magnetic field to drive the movement of the spherical stir bar.

[0038] Liquid-pushing piston: A piston structure located inside the storage unit for pushing material out. The spherical stirrer is located above the liquid-pushing piston. It is commonly found in equipment such as sprayers and syringes.

[0039] Support frame: A frame structure used to support the magnetic stirrer. Rollers are installed on its bottom or side to allow the magnetic stirrer to move axially along the storage unit and to provide stable support for the magnetic stirrer.

[0040] The terms used above are only for explaining specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art will understand that other existing technologies with the same or similar functions can be employed without departing from the concept of the present invention.

[0041] Example 1: Device Structure

[0042] like Figure 1As shown, the present invention provides a side-mounted magnetic stirring device, the core of which is to set the magnetic stirrer 3 on the outer wall of the storage unit 1, and drive the internal spherical stir bar 2 to roll and / or rotate through the magnetic field penetrating the tube wall, so as to achieve the stirring function without shaft seal, without opening, and without occupying bottom space.

[0043] Specifically, the device includes the following structure: The storage unit 1 is a tubular structure; the liquid-pushing piston 6 is located inside the storage unit 1; the spherical stirrer 2 is located inside the storage unit 1 and above the liquid-pushing piston 6; the built-in magnet 4 is embedded inside the spherical stirrer 2; the magnetic stirrer 3 is located on the outer wall of the storage unit 1 and drives the spherical stirrer 2 to roll and / or rotate through the magnetic field.

[0044] In this embodiment, the combination of slide rail and slider, and the combination of guide groove and roller can be selected according to the actual application scenario: When the guide groove and roller are combined, the roller and guide groove are detachably connected. In situations where stirring is not required, the magnetic stirrer, along with the roller, can be quickly removed from the guide groove. Furthermore, the roller can be fixed at different angles along the circumference of the guide groove to adapt to scenarios where space around the storage unit is limited or where it is necessary to avoid other equipment or accessories.

[0045] When the slide rail and slider are combined, the slider and the slide rail are in sliding fit, which makes the structure stable and the positioning accurate, and is suitable for working conditions that require long-term and continuous stirring operations.

[0046] like Figure 2As shown, to further enhance the flexibility of the stirring function, for applications such as sprayers with a liquid-pushing piston 6 in the storage unit 1, the device also includes a fixing component 7, an adjusting screw 8, rollers 9, and a support frame 10. The bottom or end of the storage unit 1 is provided with a discharge port 5 for discharging the stirred material under the push of the liquid-pushing piston 6. The support frame 10 supports the magnetic stirrer 3 and provides movable support; the rollers 9 are mounted on the support frame 10, allowing the magnetic stirrer 3 to slide along the storage unit 1; the fixing component 7 connects the support frame 10 and the liquid-pushing piston 6, enabling the magnetic stirrer 3 to move synchronously with the liquid-pushing piston 6; the adjusting screw 8 adjusts the relative distance between the magnetic stirrer 3 and the fixing component 7, allowing the magnetic stirrer 3 to maintain an adjustable relative position with the storage unit 1 during the movement of the liquid-pushing piston 6. The elastic element is located between the magnetic stirrer and the fixing component, buffering impacts and maintaining a close fit. With this structure, the magnetic stirrer 3 can move synchronously with the liquid-pushing piston 6 to ensure continuous stirring of the material during the discharge process. At the same time, the relative position of the magnetic stirrer 3 and the fixed part 7 can be adjusted by the pitch screw 8 to adapt to different liquid level heights or stirring depth requirements.

[0047] Preferably, an elastic element (not shown) is provided between the magnetic stirrer 3 and the fixing member 7. The elastic element is a compression spring or a wave spring, sleeved on the adjusting screw 8, with one end abutting against the housing of the magnetic stirrer 3 and the other end abutting against the fixing member 7. It is used to buffer the impact force of the magnetic stirrer 3 during the movement of the liquid pushing piston 6, automatically compensate for the deformation or installation error of the outer wall of the storage unit 1, and maintain the fit between the magnetic stirrer 3 and the outer wall of the storage unit 1 to ensure the magnetic field driving efficiency.

[0048] To enhance the mixing effect, the surface of the spherical stir bar 2 is provided with several raised stirring features, including at least one of ridges, grooves, or protrusions, which are used to enhance shear force and improve mixing uniformity during the mixing process. Alternatively, the surface of the spherical stir bar 2 is provided with a brush structure, which is a flocked layer, a wound fiber bundle, or a sleeve-type brush sleeve, fixedly covering the outer surface of the spherical stir bar 2; the bristles of the brush structure face the inner wall of the storage unit 1, and slide in contact with the inner wall of the storage unit 1 when the spherical stir bar 2 rolls and / or rotates, for removing material residue or scale adhering to the inner wall.

[0049] To create a multidirectional stirring flow field, the magnetic stirrer 3 includes at least two sets of magnets, which are fixedly installed inside the housing of the magnetic stirrer 3 and arranged at 90°, 120°, or 180° intervals along the circumference of the storage unit 1. The included angle between adjacent magnet sets is adjusted according to the stirring intensity and flow field requirements. Each magnet set contains at least one magnet, and the magnetic poles on opposite sides of adjacent magnet sets have opposite polarities (for example, the N pole of one magnet set faces the storage unit 1, and the S pole of adjacent magnet sets faces the storage unit 1), which is used to drive the spherical stir bar 2 to roll and / or rotate in different directions within the storage unit 1, forming a multidirectional stirring flow field and improving stirring efficiency.

[0050] The above structures can be combined and configured according to the actual application scenario. For example, for scenarios that require synchronous movement with the liquid-pushing piston 6 and require multi-directional stirring, the fixing component 7, the adjusting screw 8, the roller 9, the support frame 10, the elastic element, and multiple sets of magnets spaced apart along the circumference can be set at the same time. For scenarios that only require temporary stirring and do not require synchronous movement with the liquid-pushing piston 6, only the basic structure can be used, without setting the fixing component 7 and the adjusting screw 8.

[0051] Example 2: General Method

[0052] like Figure 3 As shown, the present invention provides a side-mounted magnetic stirring method, implemented based on any of the side-mounted magnetic stirring devices described above, comprising the following steps: S1: The spherical stir bar 2 is placed inside the storage unit 1 and above the liquid-pushing piston 6. The spherical stir bar 2 has a built-in magnet 4 embedded inside, which is used to generate movement in response to an external magnetic field.

[0053] S2: The magnetic stirrer 3 is placed on the side of the outer wall of the storage unit 1, and the spherical stir bar 2 is driven to roll and / or rotate inside the storage unit 1 by the magnetic field. After the magnetic stirrer 3 is powered on, it generates an alternating or rotating magnetic field. The magnetic field penetrates the wall of the storage unit 1 and drives the spherical stir bar 2 to roll and / or rotate inside the storage unit 1, thereby achieving the stirring of the material.

[0054] S3: During the material discharge process, the magnetic stirrer 3 moves synchronously with the pusher piston 6 to maintain continuous stirring of the material in the storage unit 1. This step is applicable to storage unit 1 applications with pusher piston 6 (such as spraying machines). The magnetic stirrer 3 is connected to the pusher piston 6 through the fixing member 7, so that the magnetic stirrer 3 always moves with the material liquid surface during the discharge process, ensuring continuous stirring of the remaining material.

[0055] Optionally, the method further includes adjusting the relative position between the magnetic stirrer 3 and the fixing member 7 using the adjusting screw 8, so that the magnetic stirrer 3 remains below the material surface in the storage unit 1 during the movement of the pushing piston 6. The fixing member 7 connects the magnetic stirrer 3 to the pushing piston 6, and the adjusting screw 8 adjusts the relative distance between the magnetic stirrer 3 and the fixing member 7. This adjustment ensures that the magnetic stirrer 3 is always submerged in the material, preventing it from running dry.

[0056] Optionally, the speed at which the magnetic stirrer 3 moves along the axial direction of the storage unit 1 is consistent with the speed at which the liquid-pushing piston 6 moves; or, by adjusting the pitch screw or by external manual operation, the speed at which the magnetic stirrer 3 moves along the axial direction of the storage unit 1 is different from the speed at which the liquid-pushing piston 6 moves, so as to achieve fixed-point stirring (stirring at a certain position) or segmented stirring (stirring in different sections) of the magnetic stirrer 3 in the storage unit 1.

[0057] Optionally, when the surface of the spherical stir bar 2 is provided with a brush structure, during the rolling and / or rotation of the spherical stir bar 2, the brush structure contacts the inner wall of the storage unit 1 to remove material residue or scale adhering to the inner wall of the storage unit 1.

[0058] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

[0059] If a flowchart is used in this application, it is used to illustrate the operations performed by the system according to embodiments of this application. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0060] The foregoing has provided a detailed description of a side-mounted magnetic stirring apparatus and method provided in this application. The above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side-mounted magnetic stirring device, characterized in that, include: Storage unit; A liquid-pushing piston is located inside the storage unit; A spherical stirrer is placed inside the storage unit and above the liquid-pushing piston, and a magnet is embedded inside the spherical stirrer; A magnetic stirrer is installed on the outer wall of the storage unit; The magnetic stirrer drives the spherical stir bar to roll and / or rotate within the storage unit via a magnetic field.

2. The side-mounted magnetic stirring device according to claim 1, characterized in that, The outer wall of the storage unit is provided with a slide rail or guide groove, and the magnetic stirrer is provided with a corresponding slider or roller. When the storage unit is equipped with the slide rail, the magnetic stirrer slides in conjunction with the slide rail via the slider; When the storage unit is provided with the guide groove, the magnetic stirrer rolls in cooperation with the guide groove through the roller; The magnetic stirrer moves axially along the storage unit via the sliding or rolling fit.

3. The side-mounted magnetic stirring device according to claim 1, characterized in that, Also includes: Fixing components and adjusting screws; The fixing member is used to connect the magnetic stirrer to the liquid-pushing piston; The adjustable screw is used to adjust the relative distance between the magnetic stirrer and the fixed part, so that the magnetic stirrer can maintain an adjustable relative position with the storage unit during the movement of the liquid-pushing piston. The adjustable screw is also used in conjunction with an external drive mechanism or manual operation to control the moving speed of the magnetic stirrer along the axial direction of the storage unit, so that it is the same as or different from the moving speed of the liquid-pushing piston, so as to achieve fixed-point stirring or segmented stirring.

4. The side-mounted magnetic stirring device according to claim 3, characterized in that, An elastic element is provided between the magnetic stirrer and the fixing component; The elastic element is used to buffer the impact force of the magnetic stirrer during the movement of the liquid-pushing piston and to maintain the fit between the magnetic stirrer and the outer wall of the storage unit.

5. The side-mounted magnetic stirring device according to claim 1, characterized in that, The surface of the spherical stirrer is provided with a plurality of raised stirring features, the stirring features including at least one of ridges, grooves or protrusions, for enhancing the shear force during the stirring process; Alternatively, the surface of the spherical stirrer is provided with a brush structure for cleaning the inner wall of the storage unit during the stirring process.

6. The side-mounted magnetic stirring device according to claim 1, characterized in that, The magnetic stirrer includes at least two sets of magnets, which are arranged at circumferential intervals along the storage unit. Each magnet group contains at least one magnet, and the magnetic poles on opposite sides of two adjacent magnet groups have opposite polarities, which are used to drive the spherical stir bar to roll and / or rotate within the storage unit to form a multidirectional stirring flow field.

7. A side-mounted magnetic stirring method, implemented based on the side-mounted magnetic stirring device according to any one of claims 1 to 6, characterized in that, Includes the following steps: Place the ball-shaped stir bar inside the storage unit; A magnetic stirrer is placed on the side of the outer wall of the storage unit, and the spherical stir bar is driven to roll and / or rotate within the storage unit by a magnetic field; During the process of the liquid-pushing piston pushing the material out, the magnetic stirrer moves synchronously with the liquid-pushing piston to maintain continuous stirring of the material in the storage unit.

8. The side-mounted magnetic stirring method according to claim 7, characterized in that, The liquid-pushing piston is connected to the magnetic stirrer through a fixing member, and an adjusting screw is provided between the fixing member and the magnetic stirrer; The relative position between the magnetic stirrer and the fixed component is adjusted by the adjusting screw, so that the magnetic stirrer is always below the material liquid level in the storage unit during the movement of the liquid pushing piston.

9. The side-mounted magnetic stirring method according to claim 7, characterized in that, The magnetic stirrer moves at the same speed along the axial direction of the storage unit as the liquid-pushing piston moves. Alternatively, by adjusting the pitch screw or by manually controlling the magnetic stirrer to move at a different speed along the axial direction of the storage unit than the speed of the liquid-pushing piston, the magnetic stirrer can generate relative motion with respect to the liquid-pushing piston within the storage unit, thereby achieving point-to-point or segmented stirring.

10. The side-mounted magnetic stirring method according to claim 7, characterized in that, When the surface of the spherical stir bar is equipped with a brush structure, during the rolling and / or rotation of the spherical stir bar, the brush structure contacts the inner wall of the storage unit to remove material residue or scale adhering to the inner wall of the storage unit.

Images