Glass lining plate type stirrer with auxiliary plate paddle

Abstract

The invention discloses a glass lining plate type stirrer with an auxiliary plate paddle, and particularly relates to the technical field of stirrers, the glass lining plate type stirrer comprises a center rod, a streamline main paddle, a driving assembly, a transmission assembly and a reset assembly consisting of an electromagnetic group I, an electromagnetic group II, a reset spring and a displacement plate, during working, the driving assembly drives the main paddle to rotate through the transmission shaft to perform radial shear mixing, and meanwhile, the rotating electromagnetic group I periodically generates repulsive force on the fixed electromagnetic group II to push the displacement plate to compress the reset spring to move upwards so as to drive the auxiliary plate paddle formed by the inclined blade guide plate to move upwards; after the repulsive force disappears, the reset spring pulls the auxiliary plate paddle to reset, axial reciprocating motion is achieved, through coupling of radial stirring and axial circulating flow, the mixing dead angle is effectively eliminated, and the mixing uniformity of the high-viscosity medicine materials is improved; electromagnetic non-contact driving and mechanical resetting are combined, the structure is reliable, and energy consumption is low; the magnetic force intensity can be adjusted along with the rotating speed, so that the self-adaptive intelligent control of the stirring intensity is realized.

Description

Technical Field

[0001] This application relates to the field of agitator technology, and more specifically, to a glass-lined plate agitator with an auxiliary paddle. Background Technology

[0002] In the pharmaceutical manufacturing industry, glass-lined plate agitators are widely used in mixing, reaction, and heat transfer processes. Their core requirement is to achieve efficient and uniform mixing while ensuring the material contact surfaces are highly clean and corrosion-resistant. This is especially important for high-viscosity or easily settling pharmaceutical materials, as it requires breaking the laminar flow state and avoiding mixing dead zones to ensure product quality uniformity and production process stability.

[0003] As described in publication number CN217699009U, a glass-lined double-folding plate agitator includes a motor and a rotating rod. A drive shaft is fixedly connected to the bottom of the motor, and a stirring fan is fixedly connected to the bottom of the rotating rod. A first limiting groove is formed at the bottom of the drive shaft, and multiple second limiting grooves are formed around the top of the first limiting groove. The top of the rotating rod is in contact with the inner wall of the first limiting groove. A fifth limiting groove is formed on the side of the rotating rod near the drive shaft, and a slip ring is slidably connected to the inner wall of the fifth limiting groove. A fourth limiting groove is formed in the middle of the rotating rod. However, this traditional glass-lined plate agitator typically relies on only a single type of impeller (such as an anchor or paddle) for radial mixing. This structure tends to generate significant flow resistance and high energy consumption when dealing with high-viscosity materials. Furthermore, it primarily generates horizontal circulation, with weak mixing capacity in the vertical (axial) direction, making it difficult to effectively promote material exchange between the upper and lower layers within the vessel. This often leads to the formation of mixing dead zones in some areas of the mixing vessel, or the occurrence of stratification and sedimentation, making it difficult to meet the stringent requirements for mixing uniformity in pharmaceutical production; therefore, a glass-lined plate agitator with an auxiliary paddle is proposed to address the above problems. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, this application provides a glass-lined plate agitator with an auxiliary paddle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a glass-lined plate agitator with an auxiliary paddle, comprising a central rod, a main paddle blade at one end of the central rod, a drive assembly at the other end of the central rod, a transmission assembly on one side of the drive assembly, connecting rods on both sides of the transmission assembly, an electromagnetic group one on one side of the connecting rod, an indicator light on one side of the electromagnetic group one, a reset assembly above the transmission assembly, an electromagnetic group two on one side of the reset assembly, and an auxiliary paddle connected to one side of the electromagnetic group two. The auxiliary paddle is cyclically moved up and down along the axial direction of the central rod by the electromagnetic group one, the reset assembly, and the electromagnetic group two.

[0006] Preferably, the auxiliary impeller is composed of several inclined guide vanes arranged in an alternating pattern with the main impeller blades. This design utilizes the strong axial fluid shear force generated by the inclined guide vanes during axial reciprocating motion. The radial flow field generated by the guide vanes and the main impeller blades overlaps in space, breaking the laminar flow state of traditional stirring and forming a three-dimensional mixing flow field. This significantly eliminates mixing dead zones and improves the mixing uniformity of high-viscosity pharmaceutical materials.

[0007] Preferably, the drive assembly is connected to the linkage shaft via a protrusion, and the central rod is combined with the drive shaft via a latch and block. This design constitutes a rigid power transmission chain, ensuring that the rotational power of the drive shaft can be efficiently and smoothly transmitted to the central rod and main blades. The principle is to use mechanical interlocking to achieve seamless power connection, ensuring the structural stability and transmission reliability of the core drive components of the agitator.

[0008] Preferably, the transmission assembly allows the drive shaft and the locking block to pass through the transmission disk and engage with the drive shaft via a connection port. This design enables the drive shaft to rotate while passing through the fixed transmission disk. The principle is that the transmission disk serves as a fixed support point, achieving a power connection between the rotating and fixed components, providing a stable mounting foundation for the entire transmission system.

[0009] Preferably, the drive shaft moves within a slide rail of the drive disc via a slider with ball bearings. This design transforms sliding friction into rolling friction. The principle behind this is to significantly reduce frictional resistance and wear during drive shaft rotation by utilizing the smooth rolling of the ball bearings within the slide rail, ensuring that the drive shaft and its electromagnetic assembly can operate smoothly and with low energy consumption over a long period.

[0010] Preferably, the electrodes of electromagnetic group one and electromagnetic group two are opposite to each other, thereby generating an upward repulsive force. This design utilizes the principle of electromagnetic induction to achieve non-contact power transmission. When the rotating electromagnetic group one passes by the fixed electromagnetic group two, the periodic repulsive force provides a precise and controllable driving force for the reciprocating motion of the auxiliary paddle, avoiding the sealing and wear problems caused by complex mechanical linkage mechanisms.

[0011] Preferably, the second electromagnetic assembly moves upward under the action of repulsive force, driving the auxiliary paddle. After the repulsive force disappears, it is pulled back to its original position by a return spring. This design cleverly combines electromagnetic driving force and mechanical return force. Its principle is to transform continuous rotational motion into precise axial reciprocating motion, enabling the auxiliary paddle to periodically apply up-and-down axial flow to the material, effectively enhancing the axial mixing capacity.

[0012] Preferably, the inclined blade guide plate forms an angle of 30° to 60° with the horizontal plane. This specific angle range is optimized so that when the auxiliary blade propeller moves up and down, this angle can optimally balance axial thrust and motion resistance, generating a sufficiently strong axial circulating flow while avoiding efficiency reduction or insufficient thrust due to an angle that is too large or too small, thus ensuring the optimization of the axial mixing effect.

[0013] Preferably, the magnetic strength of the electromagnetic assembly can be adjusted according to the rotational speed of the drive component. This design achieves adaptive intelligent control of the stirring intensity. Its principle is to linearly adjust the excitation current of the electromagnet through rotational speed feedback, thereby changing the magnitude of the repulsive force. This allows the axial mixing intensity to automatically match the radial main stirring intensity, meeting the flexible production needs of materials with different viscosities or process stages.

[0014] Preferably, the reset springs are connected via a base and at least two sets are symmetrically distributed along the axis of the displacement plate. This design utilizes the symmetrical arrangement of springs to generate a balanced restoring couple. The principle is to ensure that the displacement plate is subjected to uniform force during its up-and-down reciprocating motion, strictly limiting its movement to vertical along the guide groove, effectively preventing lateral deviation and jamming, and ensuring the accuracy and reliability of the auxiliary plate paddle's motion trajectory.

[0015] The technical effects and advantages of this application are as follows:

[0016] (1) Compared with the prior art, this glass-lined plate agitator with auxiliary blades retains the streamlined main blades for basic radial shear mixing, while innovatively introducing an auxiliary blade driven by electromagnetic force that can move up and down reciprocally. The inclined blade guide plate design of the auxiliary blades is staggered with the main blades. When it moves up and down, it specifically applies strong axial up and down circulating flow to the material. This coupling of radial and axial flow effectively breaks the laminar flow and partitioning phenomena that may be formed by traditional agitation, forcing the material in all areas of the vessel to participate in circulation, thereby significantly eliminating mixing dead zones and greatly improving the mixing uniformity. It is particularly suitable for pharmaceutical materials that are easy to settle or have high viscosity.

[0017] (2) Compared with the prior art, this glass-lined plate agitator with auxiliary paddles utilizes the periodic repulsive force between the rotating electromagnetic group one and the fixed electromagnetic group two as the power source for the upward movement of the auxiliary paddles; and utilizes the elastic restoring force of the return springs as the reset force for their descent. It eliminates the need for complex mechanical linkages or additional power sources, cleverly converting the rotational motion of the main agitator shaft into the linear motion of the auxiliary components. The cooperation between the guide groove and the displacement plate ensures the accuracy of the motion trajectory, and the symmetrically distributed return springs guarantee a smooth reset process. This mechanism is reliable, responds quickly, and achieves efficient power transmission and conversion.

[0018] (3) Compared with the prior art, this glass-lined plate agitator with auxiliary paddles achieves adaptive intelligent control of stirring intensity, solving the problem of traditional agitators having fixed parameters and being unable to flexibly respond to different process requirements. This design is not a rigid mechanical structure, but introduces an intelligent control logic of "perception-decision-execution". By linking the magnetic strength of the electromagnetic group with the speed of the drive shaft, the intensity of axial mixing can be automatically matched with the intensity of radial mixing. When high-intensity mixing is required, increasing the speed can simultaneously increase the electromagnetic repulsion and enhance axial circulation; when gentle mixing is required, decreasing the speed can simultaneously weaken the force. This adaptive capability allows a single device to flexibly meet the needs of different viscosities of materials and different reaction stages in pharmaceutical production.

[0019] (4) When seeking to enhance the axial mixing effect, the conventional approach of existing technologies is to directly add static axial flow components such as inclined blades or spiral belts to the stirring shaft, or to optimize the parameters of existing blade shapes. This glass-lined plate stirrer with auxiliary blades converts continuous rotational motion into linear reciprocating motion according to a specific time rhythm (periodicity) through electromagnetic induction, a non-contact method, and uses electromagnetic principles to achieve efficient energy conversion, breaking free from the constraints of single rotational motion and forming strong vertical convection in the entire mixing tank, effectively eliminating stratification and dead zones. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application.

[0021] Figure 2 This is a partial structural diagram of the central rod and main blades of this application.

[0022] Figure 3 This is a partial structural diagram of the auxiliary paddle in this application.

[0023] Figure 4 This is an exploded view of the driver component in this application.

[0024] Figure 5 This is an exploded view of the transmission component of this application.

[0025] Figure 6 This is a partial structural schematic diagram of the transmission assembly and electromagnetic assembly of this application.

[0026] Figure 7 This is an exploded view of the reset component of this application.

[0027] Figure 8 This is a schematic diagram of the auxiliary blade and main blade of this application.

[0028] The attached diagram is labeled as follows: 1. Center rod; 11. Lock and block; 2. Main blade; 3. Drive assembly; 31. Drive shaft; 32. Linking shaft; 33. Connecting shaft; 4. Transmission assembly; 41. Transmission shaft; 42. Transmission disc; 43. Connecting port; 44. Slider; 45. Ball bearing; 46. Slide rail; 5. Connecting rod; 6. Electromagnetic assembly one; 7. Indicator light; 8. Reset assembly; 81. Connecting shell; 82. Guide groove; 83. Displacement plate; 84. Reset spring; 85. Transmission rod; 86. Electromagnetic assembly two; 87. Auxiliary blade; 88. Base. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] As attached Figures 1 to 8 As shown, this application provides a glass-lined plate agitator with an auxiliary paddle. The agitator includes a central rod 1, with a main paddle 2 at one end of the central rod 1 and a drive assembly 3 at the other end of the central rod 1. A transmission assembly 4 is provided on one side of the drive assembly 3, and connecting rods 5 are provided on both sides of the transmission assembly 4. An electromagnetic group 1 6 is provided on one side of the connecting rod 5, and an indicator light 7 is provided on one side of the electromagnetic group 1 6. A reset assembly 8 is provided above the transmission assembly 4, and an electromagnetic group 2 86 is provided on one side of the reset assembly 8. An auxiliary paddle 87 is connected to one side of the electromagnetic group 2 86. Through the electromagnetic group 1 6, the reset assembly 8, and the electromagnetic group 2 86, the auxiliary paddle 87 is made to move up and down in a cyclic motion along the axial direction of the central rod 1.

[0032] Specifically, the center rod 1 is made of a corrosion-resistant metal core covered with an enamel layer. Two sets of main blades 2 are fixed at one end by casting or welding. These two sets of main blades are symmetrically distributed at 180 degrees and have a streamlined cross-section to reduce stirring resistance. The other end of the center rod 1 is precisely machined with a clip and block 11, which fits into the matching groove at the end of the drive shaft 31 in the drive assembly 3, thereby achieving seamless power transmission.

[0033] The drive assembly 3 is powered by an external motor. The drive shaft 31 is tightly connected to the connecting shaft 32 via a protrusion at its end. The connecting shaft 32, in turn, forms a stable support with the equipment frame via a connecting shaft 33.

[0034] The key to the implementation of the transmission assembly 4 lies in the connection port 43 opened in the center of its transmission disk 42. The connection port 43 allows the drive shaft 31 and the locking block 11 to pass through and engage with the internal transmission shaft 41. The outer wall of the transmission shaft 41 is equipped with a slider 44 with ball bearings 45, which forms a rolling engagement with the annular slide rail 46 on the inner wall of the transmission disk 42. This structure ensures that the transmission shaft 41 can rotate smoothly relative to the transmission disk 42 under the drive of the drive shaft 31.

[0035] Electromagnetic assembly 6 is fixed to both sides of transmission assembly 4 via connecting rod 5 and rotates synchronously with transmission shaft 41.

[0036] The connecting shell 81 in the reset assembly 8 is fixedly installed on the top of the stirring vessel. A vertical guide groove 82 is opened on its cylindrical wall. The displacement plate 83 is fitted inside the connecting shell 81. The protrusion on its side is embedded in the guide groove 82, restricting it to move only in the vertical direction. At least two sets of symmetrically distributed reset springs 84 are connected between the bottom of the displacement plate 83 and the base 88. The two sides of the displacement plate 83 are connected to the electromagnetic assembly 86 through the transmission rod 85. An auxiliary paddle 87 is installed below the electromagnetic assembly 86.

[0037] The auxiliary blade 87 consists of multiple inclined blade guide vanes, each at an angle of 30 to 60 degrees to the horizontal plane, and its installation position is staggered with that of the main blade 2 in radial projection.

[0038] When the drive assembly 3 is running, the electromagnetic group 6 rotates with the drive shaft 41 to be opposite to the electromagnetic group 86 at the fixed position. At this time, because the electrodes of the two are opposite, an upward repulsive force is generated. This force pushes the displacement plate 83 through the electromagnetic group 86, overcomes the tension of the reset spring 84, and moves upward along the guide groove 82, thereby driving the auxiliary blade 87 to move upward. When the electromagnetic group 6 passes through this area, the repulsive force disappears, the reset spring 84 pulls the displacement plate 83 downward to reset, and the auxiliary blade 87 descends accordingly. This cycle is repeated, thus realizing axial enhanced mixing based on the radial stirring of the main blade 2.

[0039] Example 2

[0040] As a preferred embodiment, the auxiliary blade 87 is formed by welding or fixing multiple independent inclined blade guide plates to form an integral blade. Its material is a metal core covered with an enamel layer to ensure corrosion resistance. The angle between each inclined blade guide plate and the horizontal plane is precisely set between 30 and 60 degrees. This angle range has been optimized to generate sufficient axial thrust during up-and-down reciprocating motion while avoiding excessive motion resistance.

[0041] The auxiliary blade 87 is rigidly connected to both sides of the displacement plate 83 via the transmission rod 85. Its installation position is calculated so that on the radial projection plane, each inclined blade guide plate is staggered with the main blade 2 on the central rod 1, that is, it does not overlap. This staggered arrangement ensures that when the main blade 2 rotates and shears, the axial flow generated by the auxiliary blade 87 can effectively penetrate the radial flow field formed by the main blade 2, thereby breaking the laminar flow and promoting the three-dimensional circulation and mixing of the material in the whole vessel.

[0042] The overall size of the auxiliary blade 87 is slightly smaller than the rotation diameter of the main blade 2 to avoid interference with the inner wall of the mixing vessel or the main blade 2. The stroke of its reciprocating motion is determined by the electromagnetic force distance and the elastic coefficient of the return spring 84. During operation, the electromagnetic force and the elastic coefficient of the spring can be flexibly adjusted according to the material conditions.

[0043] In a preferred embodiment, the drive assembly 3, as the core part of power transmission, consists of a drive shaft 31, a connecting shaft 32, and a connecting shaft 33. The drive shaft 31 is made of high-strength, corrosion-resistant metal material. One end of the drive shaft 31 is precision machined to form a protrusion structure. This protrusion fits into a pre-set matching groove at one end of the connecting shaft 32 to achieve direct power transmission. The connecting shaft 32 is also made of metal material and is hollow inside to allow the protrusion of the drive shaft 31 to be inserted and fixed, ensuring no relative slippage during rotation.

[0044] One end of the center rod 1 is provided with a clip and block 11, which is integrally formed with the center rod 1 by casting or machining. Its shape is complementary to the interface at the end of the drive shaft 31. This allows the center rod 1 to be tightly combined with the drive shaft 31 through the clip and block 11, thereby seamlessly transmitting rotational power from the drive shaft 31 to the center rod 1 and the main blade 2.

[0045] The connecting shaft 33 is located on one side of the connecting shaft 32 and is fixed to the equipment frame by welding or threaded connection. It serves to support and stabilize the connecting shaft 32 and prevent it from radially shaking during operation.

[0046] The design principle utilizes the mechanical interlocking of protrusions and grooves, as well as the combined connection of the card and block 11, to achieve efficient and reliable power transmission. This ensures that the agitator maintains structural rigidity during high-speed rotation, avoids power loss, and facilitates disassembly and maintenance. Technicians can reproduce the power transmission system by precisely machining the interfaces of each component and assembling them in the order of drive shaft 31-connecting shaft 32-center rod 1.

[0047] In a preferred embodiment, the transmission assembly 4 is fixedly mounted on the equipment frame via its transmission disk 42, serving as a support and guide. A connection port 43 is precisely machined at the center of the transmission disk 42. The size of the connection port 43 is designed to allow the drive shaft 31 and the clip and block 11 fixed to the end of the central rod 1 to pass smoothly through, and to allow the clip and block 11 to engage with the drive shaft 31 on the other side of the transmission disk 42. At the same time, after the drive shaft 31 passes through the connection port 43, the protrusion at its front end engages with the groove at the end of the transmission shaft 41, thereby achieving seamless power transmission from the drive shaft 31 to the transmission shaft 41.

[0048] The drive shaft 41 is supported on the inner side of the drive disk 42 in a rotatable manner. At least two sliders 44 are installed on its outer wall by fasteners. Each slider 44 has a freely rolling ball 45 embedded on one side. On the annular inner wall of the drive disk 42 opposite to the drive shaft 41, an annular slide rail 46 is machined to match the shape of the sliders 44 and the balls 45. This allows the balls 45 on the sliders 44 to roll smoothly in the slide rail 46 when the drive shaft 31 drives the drive shaft 41 to rotate, converting sliding friction into rolling friction, thereby significantly reducing transmission resistance and improving rotational stability.

[0049] The design principle utilizes the transmission disk 42 as a fixed support. Through the precise cooperation between the slider 44 with ball bearings 45 and the slide rail 46, a low-friction, high-precision kinematic pair is provided for the rotation of the transmission shaft 41. This ensures that the power input from the drive shaft 31 can be efficiently and stably transmitted to the transmission shaft 41, thereby driving the connected electromagnetic assembly 6 to rotate synchronously. This lays the foundation for the subsequent generation of electromagnetic repulsion to drive the movement of the auxiliary paddle 87. During assembly, technicians need to first fix the transmission disk 42, then pass the drive shaft 31 through the connection port 43 and engage it with the transmission shaft 41, and finally ensure that the slider 44 is accurately embedded in the slide rail 46 to reproduce the transmission structure.

[0050] In a preferred embodiment, the drive shaft 41 is made of metal, and at least two sliders 44 are symmetrically fixed on its outer wall by welding or threaded connection. The sliders 44 are made of wear-resistant material to ensure long-term reliability. Each slider 44 has a hemispherical groove pre-machined on it, and a high-hardness ball 45 is embedded in the groove. A part of the ball 45 protrudes from the surface of the slider 44 and can rotate freely.

[0051] The transmission disc 42 consists of two symmetrical parts that are bolted to the equipment frame to form a stable support. The inner wall of the disc, which is opposite to the transmission shaft 41, is precision machined with an annular slide rail 46 with an arc-shaped cross section. The radius of curvature of the slide rail 46 matches the radius of the ball bearing 45. During assembly, the transmission shaft 41 is first placed between the two transmission discs 42, and then the position is adjusted so that the ball bearing 45 on the slider 44 is precisely embedded in the slide rail 46 of the transmission disc 42. Finally, the transmission disc 42 is tightened.

[0052] When the drive shaft 31 drives the transmission shaft 41 to rotate via its protrusions, the balls 45 circulate within the slide rail 46, transforming traditional sliding friction into rolling friction. This design principle utilizes the physical property that the coefficient of rolling friction is much smaller than that of sliding friction. The cooperation between the balls 45 and the slide rail 46 significantly reduces the frictional resistance and wear of the transmission shaft 41 during rotation. At the same time, the precise guiding effect of the balls 45 effectively suppresses the radial runout of the transmission shaft 41, ensuring that the transmission shaft 41 and the connected electromagnetic assembly 6 can rotate smoothly and precisely with the drive shaft 31, providing a basis for generating a stable periodic electromagnetic repulsion force.

[0053] In a preferred embodiment, electromagnetic assembly 6 is fixedly mounted on a connecting rod 5 that rotates synchronously with the drive shaft 41. It consists of a coil wound on a magnetic core and is connected to a power supply slip ring mounted on a fixed component via a wire to ensure that it can be continuously energized in the rotating state. Electromagnetic assembly 86 is rigidly connected to the side of a displacement plate 83 that can move up and down via a drive rod 85. Its structure is the same as that of electromagnetic assembly 6, but the power supply line is fixedly connected.

[0054] In implementation, the iron core end faces of electromagnetic group 1 6 and electromagnetic group 2 86 are set to be axially aligned and maintain a small gap. According to the principle of electromagnetic induction, when the coils of the two electromagnetic groups are supplied with currents in opposite directions, their iron core end faces will generate magnetic fields of the same polarity, thereby generating a repulsive force. The key to this design is to ensure, through circuit design, that the current flowing into electromagnetic group 1 6 and electromagnetic group 2 86 is always in opposite directions, regardless of the rotation angle of the drive shaft 41, so as to maintain a constant repulsive force effect.

[0055] When the drive assembly 3 drives the electromagnetic group 1 6 to rotate to a position directly opposite the fixed electromagnetic group 2 86, the repulsive force reaches its maximum value and pushes the electromagnetic group 2 86 together with the displacement plate 83 to overcome the tension of the return spring 84 and move upward along the guide groove 82. Its working principle is to use the non-contact characteristics of electromagnetic induction to convert the rotational kinetic energy of the main stirring shaft into a control force to drive the auxiliary blade 87 to make axial reciprocating motion, thus realizing the organic combination of mechanical transmission and electromagnetic control.

[0056] In practice, the driving mechanism based on the directional repulsion force generated by opposite currents can be reproduced by selecting conventional electromagnet components and strictly following the above current direction requirements for wiring.

[0057] In a preferred embodiment, when electromagnetic assembly 6 rotates to a position directly opposite electromagnetic assembly 86 under the drive of drive assembly 3, an upward electromagnetic repulsion force is generated due to the opposite electrodes of the two assemblies. This repulsion force acts on electromagnetic assembly 86 and pushes displacement plate 83 through transmission rod 85 rigidly connected to it, overcoming the tension of return spring 84, and displacing strictly vertically upward along guide groove 82 on the outer wall of connecting shell 81.

[0058] When the displacement plate 83 moves upward, it synchronously drives the auxiliary blade 87 fixed at the other end to move upward through the transmission rod 85. At this time, the inclined blade guide plate of the auxiliary blade 87, due to its specific angle with the horizontal plane, exerts a downward reaction force on the surrounding material during the upward process, thereby driving the material to generate a downward axial flow.

[0059] When the electromagnetic assembly 6 moves away from the area corresponding to the electromagnetic assembly 86 as it rotates, the electromagnetic repulsion disappears rapidly. At this time, the elastic restoring force of the stretched return spring 84 becomes the dominant force. This force acts on the displacement plate 83 through the base 88, pulling the displacement plate 83, along with the electromagnetic assembly 86 and the auxiliary blade 87, downward along the guide groove 82 until it returns to its initial position. During this process, the inclined blade guide plate of the auxiliary blade 87 applies an upward force to the material as it descends, thereby driving the material to generate an upward axial flow.

[0060] The return springs 84 are symmetrically distributed along the axis of the displacement plate 83. The design of at least two sets ensures that the displacement plate 83 is subjected to balanced force during the up and down movement, and will not be tilted or stuck. This structure uses electromagnetic repulsion as the active driving force to achieve the upward stroke and uses the energy storage and release characteristics of mechanical springs to achieve the reset stroke, thereby converting the continuous rotation of the drive shaft 31 into the stable axial reciprocating motion of the auxiliary paddle 87.

[0061] In a preferred embodiment, each of the inclined blades of the auxiliary blade 87 is manufactured by casting or stamping to form a fixed tilt angle with the horizontal plane. This angle is strictly controlled within a theoretically optimized range of 30 to 60 degrees. In actual assembly, the inclined blades are firmly connected to the mounting base at the lower end of the transmission rod 85 by welding or special clamps, ensuring the consistency of their angles.

[0062] The design principle of choosing an angle of 30 to 60 degrees is as follows: when the auxiliary paddle 87 moves axially and reciprocates under the drive of electromagnetic force and return spring 84, this angle range can optimally balance the force and flow. If the angle is too small, the guide plate will be almost horizontal, and the axial diversion effect it produces will be weak, making it difficult to effectively push the material up and down for circulation. If the angle is too large, the guide plate will be almost vertical, and it will be subject to great resistance from the material during movement, increasing energy consumption and potentially affecting the frequency of reciprocating motion.

[0063] This specific angle allows the inclined blade guide vane to guide the material below it downwards when it moves upwards, and to guide the material above it upwards when it moves downwards, thereby forming a strong axial circulating flow field in the mixing vessel. This flow field intertwines and penetrates with the radial flow field generated by the main blade 2, forming a three-dimensional mixing effect, which effectively solves the problem of insufficient axial mixing in traditional mixing.

[0064] Therefore, the auxiliary paddle 87 itself does not rotate, but makes a vertical reciprocating motion, like the action of scrambling egg liquid up and down.

[0065] In a preferred embodiment, the magnetic strength adjustment function of electromagnetic group 6 and electromagnetic group 86 is realized through an external control system. The system includes a speed sensor for detecting the rotational speed of drive shaft 31 and a power controller with adjustable output current. The speed sensor is installed near drive shaft 31 or transmission shaft 41 to collect its rotational speed in real time and transmit the speed signal to the power controller. The power controller converts the received speed signal into a corresponding control signal according to a preset program or instructions input by the operator, so as to dynamically adjust the current output to the coils of electromagnetic group 6 and electromagnetic group 86.

[0066] Based on the physical property that the magnetic strength of an electromagnet is proportional to the magnitude of its excitation current, the magnetic force can be linearly controlled by controlling the current. When the drive component 3 is running at a higher speed, the control system increases the output current accordingly, thereby enhancing the repulsive force between the first electromagnetic group 6 and the second electromagnetic group 86, so that the auxiliary paddle 87 can obtain a larger displacement amplitude and force to cope with the working conditions that require stronger axial mixing at high speeds. Conversely, when the speed decreases, the current is reduced to weaken the magnetic force and avoid energy waste and excessive stirring.

[0067] This implementation method enables the axial mixing intensity of the agitator to automatically match the radial mixing intensity of the main agitator, achieving adaptive intelligent control for materials of different viscosities or different process stages.

[0068] The working process for this application is as follows:

[0069] First, when the stirrer is started, the drive assembly 3 drives the drive shaft 31 to rotate through an external power source such as a motor. The drive shaft is connected to the transmission shaft 32 through a protrusion, thereby transmitting power to the central rod 1. One end of the central rod is fixed to the drive shaft 32 through a clip and block 11 to ensure stable transmission. The main blade 2 at the other end is streamlined and has two sets arranged along the circumference of the central rod. During rotation, the main blades efficiently shear and mix the pharmaceutical materials.

[0070] The connecting shaft 32 engages with the drive shaft 31 through the connecting port 43. The slide rail 46 on the transmission disc 42 cooperates with the slider 44 and ball 45 on the transmission shaft, so that the transmission shaft 41 rotates together with the center rod 1, thereby making the electromagnetic assembly 6 rotate synchronously with the main blade 2, providing power for the up and down displacement of the auxiliary blade 87. The streamlined design of the main blade 2 reduces flow resistance and is suitable for high-viscosity materials in pharmaceutical production, ensuring uniform basic mixing.

[0071] During the rotation of the drive assembly, since the electrodes of electromagnetic group 1 6 and electromagnetic group 2 86 are opposite, when electromagnetic group 1 6 rotates to the vicinity of electromagnetic group 2 86, an upward repulsive force is generated. This repulsive force acts on electromagnetic group 2 86, causing electromagnetic group 2 86 to drive displacement plate 83 to move upward along guide groove 82 of connecting shell 81. At this time, the return spring 84 is stretched, and displacement plate 83 is connected to auxiliary blade 87 through transmission rod 85, thereby causing auxiliary blade 87 to move upward.

[0072] The auxiliary blade 87 is composed of several inclined guide vanes, which are at an angle of 30° to 60° to the horizontal plane and are staggered with the main blade 2. When the electromagnetic group 1 6 rotates away from the area of ​​the electromagnetic group 2 86, the repulsive force disappears. Under the action of the elastic restoring force, the reset spring 84 pulls the displacement plate 83 downward, which drives the auxiliary blade 87 to reset. Thus, the auxiliary blade 87 performs up-and-down reciprocating cyclic motion according to the rotation of the central rod 1. This up-and-down reciprocating cyclic motion of the auxiliary blade 87 applies axial up-and-down cyclic flow to the material, breaks the laminar flow state, and enhances the mixing effect.

[0073] During the cyclic motion of the auxiliary paddle 87, the reset spring is connected to the connecting shell 81 through the base 88 and at least two sets are symmetrically distributed along the displacement plate axis to ensure that the reset process is smooth and without deviation. The up and down displacement cycle of the auxiliary paddle 87 repeats with the rotation speed of the drive component 3, forming a continuous axial circulation. The magnetic strength of electromagnetic group 1 6 and electromagnetic group 2 86 can be adjusted according to the rotation speed of the drive component 3 to adapt to different process requirements in pharmaceutical production.

[0074] The above describes the working principle of this type of glass-lined plate agitator with auxiliary paddles.

[0075] In conclusion, the above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glass-lined plate agitator with an auxiliary paddle, comprising a central rod (1), characterized in that: One end of the central rod (1) is provided with a main blade (2), and the other end of the central rod (1) is provided with a drive assembly (3). A transmission assembly (4) is provided on one side of the drive assembly (3). A connecting rod (5) is provided on both sides of the transmission assembly (4). An electromagnetic group one (6) is provided on one side of the connecting rod (5). An indicator light (7) is provided on one side of the electromagnetic group one (6). A reset assembly (8) is provided above the transmission assembly (4). An electromagnetic group two (86) is provided on one side of the reset assembly (8). An auxiliary blade (87) is connected to one side of the electromagnetic group two (86). The auxiliary blade (87) is caused to move up and down in a circular motion along the axial direction of the central rod (1) by the electromagnetic group one (6), the reset assembly (8) and the electromagnetic group two (86).

2. The glass-lined plate agitator with auxiliary paddle as described in claim 1, characterized in that: The main blade (2) is streamlined, and two sets of the main blade (2) are arranged along the circumference of the central rod (1). The auxiliary blade (87) is composed of several sets of inclined guide vanes, and the auxiliary blade (87) and the main blade (2) are arranged in an alternating manner.

3. A glass-lined plate agitator with an auxiliary paddle as described in claim 1, characterized in that: The drive assembly (3) includes a drive shaft (31), a connecting shaft (32), and a connecting shaft (33). The connecting shaft (32) is connected to one side of the drive shaft (31) via a protrusion. A latch and block (11) are provided at one end of the center rod (1). The center rod (1) is combined with the drive shaft (31) via the latch and block (11). The connecting shaft (33) is provided on one side of the connecting shaft (32).

4. A glass-lined plate agitator with an auxiliary paddle as described in claim 3, characterized in that: The transmission assembly (4) includes a transmission shaft (41), a transmission disc (42), and a connection port (43). The transmission shaft (41) is connected to the transmission disc (42) on both sides. The connection port (43) is provided at the center of the transmission disc (42). The connection port (43) allows the drive shaft (31) and the locking block (11) to pass through the transmission disc (42) and engage with each other. When the drive shaft (31) passes through the transmission disc (42), it engages with the transmission shaft (41).

5. A glass-lined plate agitator with an auxiliary paddle as described in claim 4, characterized in that: A slider (44) is provided on the outer wall of the drive shaft (41), and a ball (45) is provided on one side of the slider (44). A slide rail (46) is provided on the side of the drive disk (42) that contacts the drive shaft (41), so that the drive shaft (41) rotates along the drive disk (42) under the drive of the drive shaft (31) via the slider (44).

6. A glass-lined plate agitator with an auxiliary paddle as described in claim 1, characterized in that: The electrodes of the first electromagnetic group (6) are opposite to those of the second electromagnetic group (86), so that the first electromagnetic group (6) generates an upward repulsive force on the second electromagnetic group (86) when the drive assembly (3) rotates.

7. A glass-lined plate agitator with an auxiliary paddle as described in claim 2, characterized in that: The reset assembly (8) includes a connecting shell (81), a guide groove (82), a displacement plate (83), a reset spring (84), and a transmission rod (85). The outer wall of the connecting shell (81) is provided with a guide groove (82). A displacement plate (83) is connected to one side of the guide groove (82). A reset spring (84) is connected to the bottom of the displacement plate (83). Transmission rods (85) are connected to both sides of the displacement plate (83). An electromagnetic assembly (86) is provided on one side of the transmission rod (85).

8. A glass-lined plate agitator with an auxiliary paddle as described in claim 7, characterized in that: The second electromagnetic assembly (86) moves upward under the repulsive force of the first electromagnetic assembly (6), thereby causing the displacement plate (83) to move upward along the vertical direction of the connecting shell (81), so that the auxiliary plate paddle (87) applies axial up-and-down circulating flow to the material. When the first electromagnetic assembly (6) rotates away from the second electromagnetic assembly (86), the displacement plate (83) drives the auxiliary plate paddle (87) to move downward to reset through the reset spring (84).

9. A glass-lined plate agitator with an auxiliary paddle as described in claim 1, characterized in that: The auxiliary blade (87) is configured such that the inclined blade guide plate forms an angle of 30° to 60° with the horizontal plane, and the magnetic strength of the electromagnetic group one (6) and electromagnetic group two (86) can be adjusted according to the rotational speed of the drive assembly (3).

10. A glass-lined plate agitator with an auxiliary paddle as described in claim 1, characterized in that: The bottom of the reset spring (84) is provided with a base (88), the reset spring (84) is connected to the connecting shell (81) through the base (88), and at least two sets of the reset spring (84) are symmetrically distributed along the axis of the displacement plate (83).

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