Magnetic suspension stirring equipment for materials

Abstract

The invention relates to the technical field of stirring equipment, and particularly discloses magnetic suspension stirring equipment for materials, which comprises a rack, a stirring mechanism arranged on the rack and a control center electrically connected with the stirring mechanism, the stirring mechanism comprises a tank body fixedly arranged on the rack, a magnetic suspension stirring piece rotationally arranged in the tank body, a stator assembly and a radial magnetic ring which are located on the periphery of the tank body, and an axial magnet arranged below the tank body; the magnetic suspension stirring piece comprises a main body part, a vertical magnet arranged below the main body part, a radial magnet ring arranged on the main body part and a rotor assembly; after the stator assembly is powered on, the stator assembly interacts with the rotor assembly of the magnetic suspension stirring piece to drive the magnetic suspension stirring piece to rotate to stir materials in the tank body, the vertical magnet and the axial magnet repel each other to achieve axial suspension of the magnetic suspension stirring piece, and the radial magnet ring and the radial magnetic ring repel each other to achieve radial suspension of the magnetic suspension stirring piece.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, and in particular discloses a magnetic levitation mixing device for materials. Background Technology

[0002] In existing material mixing equipment, traditional mixing methods often cause wear and material contamination due to direct contact between the mixing components and the tank. Existing magnetic levitation mixing equipment generally suffers from insufficient levitation stability, poor sealing structure reliability, lack of safety linkage mechanism between sealing status and equipment start-up, and heat generated by the stator components during operation is prone to accumulate, affecting operating efficiency. In addition, unreasonable mixing structure design of some equipment leads to defects such as uneven material mixing and mixing dead zones. There is an urgent need for a non-contact, high-efficiency mixing, stable levitation, safe and reliable operation, and uniform material mixing equipment. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a magnetic levitation stirring device for materials.

[0004] To achieve the above objectives, the present invention provides a magnetic levitation stirring device for materials, characterized in that it includes a frame, a stirring mechanism mounted on the frame, and a control center electrically connected to the stirring mechanism; the stirring mechanism includes a tank fixedly mounted on the frame, a magnetically levitated stirring component rotatably mounted inside the tank, a stator assembly and a radial magnetic ring located around the tank, and an axial magnet located below the tank; the magnetically levitated stirring component includes a main body, a vertical magnet located below the main body, a radial magnetic ring located on the main body, and a rotor assembly; after the stator assembly is energized, the stator assembly interacts with the rotor assembly of the magnetically levitated stirring component to drive the magnetically levitated stirring component to rotate and stir the materials inside the tank, the vertical magnet and the axial magnet repel each other to achieve axial levitation of the magnetically levitated stirring component, and the radial magnetic ring and the radial magnetic ring repel each other to achieve radial levitation of the magnetically levitated stirring component.

[0005] The mixing mechanism and control center are supported by a frame. Inside the tank of the mixing mechanism, a magnetically levitated mixing component, including a main body, vertical magnets, radial magnetic rings, and a rotor assembly, is rotatably mounted. Sub-assemblies and radial magnetic rings are set around the tank, and axial magnets are located below the tank. After the stator assembly is energized by the control center, it interacts with the rotor assembly to drive the magnetically levitated mixing component to rotate. At the same time, the vertical magnets and axial magnets repel each other to achieve axial levitation, and the radial magnetic rings and radial magnetic rings repel each other to achieve radial levitation, thereby completing the mixing of materials inside the tank. Its advantages are that the magnetic levitation structure allows the mixing component to rotate without contact, greatly reducing friction loss and the risk of material contamination. The mixing process is more stable and efficient, and the overall structure is compact and can be precisely controlled through the control center, making it suitable for high-quality mixing scenarios of various materials.

[0006] The main body includes a column and a connecting rod connected to the column. A vertical magnet is located at the lower end of the column, and a radial magnet ring is connected to the end of the connecting rod away from the column. The radial magnet ring surrounds the column. The column, connecting rod, vertical magnet or radial magnet ring have a stirring part, which is used to stir the material in the tank.

[0007] The mixing mechanism and control center are supported by a frame. A magnetically levitated mixing element is rotatably mounted inside the tank of the mixing mechanism. The main body of this mixing element includes a column and connected connecting rods. A vertical magnet is mounted at the lower end of the column, and a radial magnet ring is connected to the end of the connecting rod furthest from the column and arranged around the column. The column, connecting rods, and either the vertical magnet or the radial magnet ring are equipped with mixing sections for mixing materials inside the tank. A stator assembly and a radial magnetic ring are set around the tank periphery, and an axial magnet is located below the tank. After the control center controls the stator assembly to be energized, it interacts with the rotor assembly of the magnetically levitated mixing element, causing it to rotate. Simultaneously, the vertical magnet and the axial magnet repel each other to achieve axial levitation, and the radial magnet ring and the radial magnetic ring repel each other to achieve radial levitation, thus completing the mixing of materials. Its advantages include using a magnetic levitation structure to allow the mixing element to rotate without contact, significantly reducing friction loss and the risk of material contamination. The mixing section is integrated with related components of the main body, resulting in more comprehensive and uniform mixing. The overall structure is compact and precisely controlled, making it suitable for high-quality mixing scenarios for various materials.

[0008] The radial magnet ring includes an annular housing, an annular permanent magnet, a non-magnetic isolation ring, and an annular silicon steel sheet disposed within the annular housing. The non-magnetic isolation ring is used to isolate the annular permanent magnet and the annular silicon steel sheet.

[0009] Using a ring-shaped shell as the supporting foundation, a ring-shaped permanent magnet, a non-magnetic isolation ring, and a ring-shaped silicon steel sheet are integrated within the shell. The non-magnetic isolation ring is positioned between the ring-shaped permanent magnet and the ring-shaped silicon steel sheet to achieve physical isolation and magnetic circuit separation between the two. All components are assembled together to form a complete radial magnet ring. Its advantages are that the non-magnetic isolation ring effectively avoids magnetic interference between the ring-shaped permanent magnet and the ring-shaped silicon steel sheet, ensuring stable magnetic circuit transmission; the ring-shaped silicon steel sheet can enhance magnetic flux density and improve magnetic efficiency; and the ring-shaped shell provides protection and fixation for the internal components. The overall structural design is reasonable and easy to assemble, which can significantly improve the reliability and magnetic performance stability of the radial magnet ring.

[0010] The radial magnetic ring includes a first set of rotating rings and a second set of rotating rings. The rotor assembly is located between the first set of rotating rings and the second set of rotating rings. There are three sets of connecting rods, which are arranged along the rotation axis of the magnetic levitation stirring component. The three sets of connecting rods are connected to the first set of rotating rings, the second set of rotating rings, and the rotor assembly, respectively. There are two radial magnetic rings, which are used in conjunction with the first set of rotating rings and the second set of rotating rings, respectively. The vertical magnet is located below the second set of rotating rings. The connecting rod includes a first straight rod and a second straight rod that intersects the first straight rod. The end of the first straight rod away from the column is connected to the radial magnetic ring, and the end of the second straight rod away from the column is also connected to the radial magnetic ring.

[0011] The cross-designed first and second straight rods significantly enhance the structural strength and stress stability of the connecting rods, ensuring a firm and reliable connection with the rotating rings and rotor assembly. The radial magnetic rings are divided into two sets of rotating rings, with the rotor assembly centrally located. The three sets of connecting rods are arranged in an orderly manner along the rotation axis and connect to each component accordingly. The precise cooperation between the two radial magnetic rings and the two sets of rotating rings not only achieves a clear division of labor between rotor drive and radial suspension functions but also optimizes the magnetic circuit distribution, significantly improving the accuracy and stability of radial suspension. The vertical magnet is located below the second set of rotating rings, and its cooperation with the axial magnet is more in line with the logic of force transmission. The overall component layout is compact and reasonable, reducing assembly redundancy and making force transmission more balanced, further improving the stability and durability of the magnetic levitation stirring component during operation, and adapting to the needs of long-term and efficient stirring operations.

[0012] The side wall of the column is provided with multiple sets of intersecting holes corresponding to multiple sets of connecting rods. Each set of intersecting holes includes a first hole and a second hole arranged radially along the column and intersecting each other. The first hole and the second hole respectively accommodate a first straight rod and a second straight rod. The column is provided with a filling material for assisting levitation.

[0013] The filler is made of foamed material. The advantages of using foamed material as column filler are that its lightweight characteristics do not add extra weight to the overall equipment, which meets the requirements of lightweight tank design and effectively reduces the load pressure on the frame; it has good buffering and shock absorption performance, which can absorb the vibration generated when the magnetic levitation agitator rotates, reduce the impact of force at the connection between the column and the connecting rod, protect the connection structure and improve the suspension stability of the agitator; it can tightly fill the gaps inside the column, enhance the overall structure of the column, avoid local stress deformation, and prevent dust, liquid accumulation and other substances from entering the inside of the column and affecting the performance of the components.

[0014] The system comprises a first set of rotating rings, a second set of rotating rings, a third set of rotating rings, and a fourth set of rotating rings. The fourth set of rotating rings integrates the function of a vertical magnet, while the second set of rotating rings is a rotor assembly. The column serves as the main support component, and its sidewalls have multiple sets of intersecting holes corresponding to the three sets of connecting rods. Each set of intersecting holes consists of a first hole and a second hole arranged radially along the column and intersecting each other. These holes respectively accommodate the first and second straight rods of each set of connecting rods. The three sets of connecting rods are arranged sequentially along the rotation axis of the magnetic levitation stirring component. The ends of the first and second straight rods furthest from the column are fixedly connected to the first, second, and third sets of rotating rings, respectively. The column also houses a filling component for assisting levitation. Two radial magnetic rings are used in conjunction with the first and third sets of rotating rings, respectively, forming a radial magnetic repulsion structure. Its beneficial effects are as follows: the cross-hole body is precisely matched with the first and second straight rods of the cross design, which not only ensures the accuracy of assembly positioning, but also enhances the connection between the connecting rods and the column and the overall structural strength; the filling material inside the column further helps to improve the levitation stability, and with the precise matching of the two radial magnetic rings and the corresponding rotating rings, the radial levitation effect is more balanced and reliable; the division of labor of each component is clear, the assembly logic is rigorous, the vertical magnet and the rotating ring are integrated, and multiple sets of components are arranged in an orderly manner along the axis, making the overall structure more compact, effectively optimizing the magnetic circuit distribution and force balance, and improving the stability and durability during use.

[0015] The magnetic levitation stirring device also includes multiple Hall displacement sensors. The Hall displacement sensors and the stator assembly are electrically connected to the control center. The multiple Hall displacement sensors are evenly distributed along the circumference of the radial magnetic ring. The Hall displacement sensors are used to detect the levitation position offset of the magnetic levitation stirring component in real time and transmit the detected displacement signal to the control center. After receiving the displacement signal, the control center analyzes and calculates the radial offset direction and offset amplitude of the magnetic levitation stirring component relative to the tank, and dynamically adjusts the power supply parameters of each phase winding of the radial magnetic ring. This changes the directional magnetic field force between the radial magnetic ring and the magnetic levitation stirring component, so as to correct the levitation attitude of the magnetic levitation stirring component in real time and ensure that the magnetic levitation stirring component is suspended in the tank without tilting.

[0016] The Hall displacement sensor and stator assembly are both electrically connected to the control center. A magnetically levitated stirring component is rotatably mounted inside the stirring tank. The main body of the stirring mechanism has multiple sets of intersecting holes on the side wall of the column corresponding to three sets of connecting rods. Each set of intersecting holes includes a first hole and a second hole that intersect radially, respectively accommodating the first and second straight rods of the connecting rods. An auxiliary levitation filler is provided inside the column. The three sets of connecting rods are arranged along the rotation axis, with their ends away from the column fixedly connected to the first, second, and third sets of rotating rings, respectively. The fourth set of rotating rings integrates a vertical magnet function. The second set of rotating rings is the rotor assembly, with two radial magnetic rings connected to the first and third sets of... The rotating ring forms a radial magnetic repulsion engagement, and multiple Hall displacement sensors are evenly distributed along the circumference of the radial magnetic ring. During operation, the control center controls the stator assembly to be energized, which interacts with the rotor assembly to drive the agitator to rotate. The vertical magnet repulses the axial magnet below the tank to achieve axial suspension, and the radial magnetic repulsion engagement achieves initial radial suspension. At the same time, the Hall displacement sensors detect the displacement of the agitator's suspension position in real time and transmit the displacement signal to the control center. After analyzing the direction and magnitude of the displacement, the control center dynamically adjusts the power supply parameters of each phase winding of the radial magnetic ring to change the directional magnetic field force and correct the suspension attitude in real time to ensure that the agitator is suspended in the tank without tilting. Its beneficial effects are as follows: the cross-hole body and cross-connecting rods are precisely matched, and the filler assists in levitation, enhancing the structural strength and initial levitation stability; the multiple sets of rotating rings have clear division of labor and integrated design, making the structure more compact and optimizing the magnetic circuit and force balance; the Hall displacement sensor and the closed-loop control of the control center realize real-time detection and dynamic correction of the levitation position, completely avoiding the tilting of the stirring parts, greatly improving the levitation accuracy and the stability of the stirring process, and with the non-contact magnetic levitation structure, reducing friction loss and material contamination. The overall equipment is precise in control, durable, and suitable for various high-quality material stirring scenarios.

[0017] The mixing equipment also includes a cover portion for covering the tank body. The cover portion includes a rotating seat mounted on the frame, a locking component, a rotating shaft mounted on the rotating seat, a sealing cover rotatably mounted on the rotating shaft, and a locking seat mounted on the sealing cover. The sealing cover has a feeding hole communicating with the tank body. The locking component includes a first support mounted on the frame, a rotating block rotatably mounted on the first support, and a handle fixedly mounted on the rotating block. The locking seat includes a second support and a limiting component mounted on the second support. The limiting component has a limiting notch on the side near the locking component. Rotating the handle causes the rotating block to engage with the limiting notch, thereby covering the tank body with the sealing cover.

[0018] The rotating base, locking components, and rotating shaft are mounted on the frame. The sealing cover can be flexibly rotated and assembled on the rotating base via the rotating shaft, and the sealing cover has a feeding hole that directly communicates with the inside of the tank. A locking base is fixed to the side of the sealing cover. The locking base consists of a second support and an integrated limiting component. The limiting component has a limiting notch on the side facing the locking component. The corresponding locking component consists of a first support on the frame, a rotating block rotatably connected to the first support, and a handle fixed to the outside of the rotating block. During operation, simply turning the handle will drive the rotating block to precisely engage with the limiting notch, achieving a secure fit between the sealing cover and the tank. Its advantages are: the rotating assembly design makes opening and closing the sealing cover effortless and convenient, without the need for complex disassembly; the locking structure achieves reliable fixation through mechanical snap-fit, effectively ensuring the sealing of the tank during mixing and preventing material leakage or the entry of external contaminants; the independent setting of the feeding hole allows for direct replenishment of materials without opening the sealing cover, greatly simplifying the operation process. The overall structure is simple, the assembly difficulty is low, and it can efficiently adapt to the dual needs of tank sealing protection and convenient feeding.

[0019] The inner side of the column is also provided with an inner shaft and multiple sets of connecting blocks on the inner shaft. Each set of connecting blocks is connected to each set of connecting rods. The connecting block has a third channel and a fourth channel that intersects with the third channel. The third channel is coaxially connected to the first hole and the fourth channel is coaxially connected to the second hole. The first straight rod passes through the third channel of the connecting block and the second straight rod passes through the fourth channel of the connecting block.

[0020] An inner shaft is installed on the inside of the column, and multiple sets of connecting blocks are mounted on the inner shaft. Each set of connecting blocks is precisely fitted to a corresponding set of connecting rods. The connecting blocks have a third channel and a fourth channel intersecting the third channel. The third channel is coaxially connected to the first hole on the column, and the fourth channel is coaxially connected to the second hole on the column. During assembly, the first straight rod passes through the first hole of the column and the third channel of the connecting block in sequence, and the second straight rod passes through the second hole of the column and the fourth channel of the connecting block in sequence, achieving a stable connection between the connecting rods, the column, and the inner shaft. The advantages are: the addition of the inner shaft and connecting blocks further strengthens the installation support strength of the connecting rods, preventing deformation at the connection point; the coaxial design of the third and fourth channels intersecting the holes of the column ensures the positioning accuracy and coaxiality of the first and second straight rods during assembly, reducing assembly deviations; the precise fit between the intersecting channels and the straight rods of the intersecting structure allows for more balanced force transmission, significantly improving the stability and durability of the overall connection structure, while the clear assembly logic facilitates installation and maintenance.

[0021] The mixing equipment also includes an annular air guide shroud mounted on the frame and multiple sets of heat dissipation devices mounted on the annular air guide shroud. The multiple sets of heat dissipation devices are arranged around the tank body. The annular air guide shroud and the tank body have an annular cavity. The bottom of the annular air guide shroud is provided with multiple sets of air outlets. The heat dissipation device is a fan. After the heat dissipation device is powered on, it rotates to bring the outside cold air into the annular cavity. The outside cold air cools the heat generated by the rotation of the stator assembly, the radial magnetic ring and the magnetic levitation stirring component. The cooled hot air is discharged through the air outlets.

[0022] The frame is equipped with a ring-shaped air guide shroud, on which multiple sets of fans (heat dissipation devices) are installed around the tank. The ring-shaped air guide shroud and the tank form a ring-shaped cavity, and multiple air outlets are opened at the bottom of the shroud. During operation, the heat dissipation device is powered on and rotates, introducing external cold air into the ring-shaped cavity. The cold air flows through the stator assembly, radial magnetic ring, and magnetic levitation agitator, efficiently cooling the heat generated during operation. The hot air, after heat exchange, is discharged from the equipment through the bottom air outlets. Its advantages are: multiple fans arranged around the tank, combined with the ring-shaped cavity, form a uniform airflow for heat dissipation, ensuring even cooling without dead zones; cold air flows directly over the core heat-generating components, resulting in high heat dissipation efficiency and rapid reduction of the equipment's operating temperature, preventing high temperatures from affecting magnetic levitation performance and component lifespan; the ring-shaped air guide directional airflow and the air outlets ensure timely discharge of hot air, forming a stable heat dissipation cycle; and the simple fan structure and convenient maintenance allow the equipment to adapt to long-term continuous operation scenarios.

[0023] The tank also includes a feed pipe located on the upper side wall of the tank and a discharge pipe located at the center of the bottom of the tank. The feed pipe has a feed inlet connected to the tank and the discharge pipe has a discharge outlet connected to the tank. The feed pipe is located at the upper end of the side wall, which facilitates the smooth addition of materials and avoids interference with the top cover of the tank and the internal agitator. The discharge pipe is located at the bottom center, which can minimize material residue and ensure thorough discharge. The feed port and discharge port correspond to independent pipes, with a simple structure and clear division of labor, making the input and output of materials convenient and efficient, and adapting to the continuous operation requirements of the mixing equipment.

[0024] The tank is made of stainless steel and has a thickness of 2mm.

[0025] The tank body is made of stainless steel and formed through welding. The overall thickness is set at 2mm. It is used to hold the materials to be stirred and to provide a stable working chamber for the internal magnetic levitation stirring components. Its advantages are: stainless steel has excellent corrosion resistance and hygiene, will not react with materials, ensures material purity, and is suitable for stirring needs in various fields such as food and chemicals; the welding process makes the tank structure compact and highly sealed, effectively preventing material leakage; the 2mm thickness design ensures structural stability while achieving tank lightweighting, reducing the load on the frame, and facilitating manufacturing and controlling production costs.

[0026] The radial magnetic ring includes an annular magnetic guide frame, multiple protrusions disposed on the annular magnetic guide frame, and multiple coils respectively wound on the multiple protrusions. The annular magnetic guide frame is arranged around the tank body, and the protrusions and coils are located between the annular magnetic guide frame and the tank body.

[0027] The device consists of a ring-shaped magnetic guide frame, multiple protrusions, and multiple coils. The ring-shaped magnetic guide frame is arranged around the tank body, and the multiple protrusions are spaced apart on the ring-shaped magnetic guide frame. Each coil is wound around a corresponding protrusion, and both the protrusions and coils are located between the ring-shaped magnetic guide frame and the tank body, forming a magnetic field generating structure that surrounds the tank body. Its advantages are: the ring-shaped magnetic guide frame can guide the directional distribution of the magnetic field, improving the utilization rate of the magnetic circuit; the protrusions provide a stable winding carrier for the coils and maintain a reasonable distance between the coils and the tank body, making the magnetic field effect more precise; the combined design of multiple coils and protrusions allows for flexible adjustment of the magnetic field strength and direction by controlling the coil power supply, adapting to the dynamic correction requirements of radial suspension; the overall structure is compact, the ring-shaped layout is highly adaptable to the tank body, processing and assembly are convenient, and it can effectively ensure the stability of radial magnetic repulsion.

[0028] The limiting notch is equipped with a start-up trigger sensor connected to the control center. When the operator rotates the handle to drive the rotating block into the limiting notch, so that the sealing cover is accurately placed on the tank, the start-up trigger sensor detects the engagement signal between the rotating block and the limiting notch and transmits this signal to the control center in real time. After receiving the signal, the control center determines that the sealing cover has completed the correct closing operation and starts the overall operation program of the magnetic levitation stirring equipment.

[0029] A start-trigger sensor, electrically connected to the control center, is installed at the limiting notch on the lid. When the operator rotates the handle to engage the rotating block into the limiting notch to accurately seal the tank, the start-trigger sensor simultaneously detects the engagement signal between the rotating block and the limiting notch and transmits this signal to the control center in real time. Upon receiving the signal, the control center determines that the sealing lid has been correctly closed and automatically starts the overall operation program of the magnetic levitation stirring equipment. The beneficial effect is that, through the linkage design between the start-trigger sensor and the control center, a "sealing in place - start allowed" safety control logic is constructed, completely avoiding safety hazards such as material splashing and external impurities intrusion caused by accidental equipment start-up when the sealing lid is not closed or not closed in place. At the same time, no additional manual operation of the start-up program is required, improving the convenience and automation of equipment operation. Furthermore, the sensor is integrated at the limiting notch without damaging the original lid locking structure, taking into account both safety performance and structural compatibility, and ensuring the safety and reliability of equipment operation.

[0030] The connection between the discharge pipe and the tank is provided with an arc-shaped guide surface.

[0031] The curved guide surface at the connection point can eliminate dead corners for material accumulation, prevent high-viscosity materials from remaining at the junction of the pipe and the tank, and guide the smooth flow of materials, improving discharge efficiency and tank cleanliness. The overall structure is adaptable to the mixing and conveying needs of materials with different viscosities, taking into account both practicality and convenience.

[0032] The tank interior is also equipped with a liquid level sensor electrically connected to the control center. The sensor's detection end faces the material area inside the tank, and it is used to detect the liquid level height of the material inside the tank in real time and generate a liquid level signal, which is then transmitted to the control center. The control center presets a minimum safe liquid level threshold and a maximum safe liquid level threshold. After receiving the liquid level signal, it compares it with the preset thresholds: when the detected liquid level is lower than the minimum safe liquid level threshold, the control center triggers an alarm and suspends the stirring operation of the magnetic levitation agitator; when the detected liquid level is higher than the maximum safe liquid level threshold, the control center triggers an alarm and can also control the feed control valve of the feed pipe to close to prevent material overflow.

[0033] The mixing equipment also includes an adjustment mechanism disposed on the side of the radial magnetic ring. The adjustment mechanism includes an adjustment rod disposed on the frame, an adjustment block slidably disposed on the adjustment rod, and a locking component disposed on the adjustment block. The adjustment block is connected to the side of the radial magnetic ring. The adjustment block includes a sliding block and an installation block integrally formed with the sliding block. The adjustment rod has a slide rail disposed along the length of the adjustment rod. The middle of the adjustment rod has a slot parallel to the slide rail. There are two sets of slide rails, located on both sides of the slot. The sliding block is slidably disposed on the adjustment rod. The installation block protrudes from the slot and is connected to the locking component. A locking seat is disposed on the side of the adjustment rod away from the slide rail. The locking seat has a through hole. The locking component includes a bolt rotatably disposed on the locking seat. The installation block has a threaded hole. After the installation height of the radial magnetic ring is determined, the adjustment block is pushed to slide along the slide rail on the adjustment rod to the required height position. Then, the bolt is passed through the through hole of the locking seat and the threaded hole on the installation block in sequence and tightened to fix the adjustment block and the adjustment rod relative to each other, thereby fixing the installation height of the radial magnetic ring.

[0034] The beneficial effects of this invention are as follows: The non-contact magnetic levitation structure allows the stirring component to levitate and rotate, significantly reducing friction loss and material contamination. Combined with the precise fit design of the main body's cross-connecting rods, inner shaft, and connecting blocks, and the optimized combination of the radial magnet ring's non-magnetic isolation ring and the annular silicon steel sheet, this enhances structural strength, ensures magnetic circuit stability, and improves magnetic efficiency. Furthermore, the four clearly defined rotating rings integrate the function of vertical magnets, making the overall structure more compact and the magnetic circuit and force distribution more balanced. The Hall displacement sensor and closed-loop control of the control center can correct the levitation posture in real time, preventing the stirring component from tilting and improving levitation accuracy and stirring stability. The surrounding heat dissipation system forms a directional airflow circulation through an annular air guide shroud and multiple fans, efficiently cooling the core heat-generating components and ensuring long-term continuous operation of the equipment. The tank body is made of 2mm thick stainless steel. Welded together, this equipment combines corrosion resistance, hygiene, and lightweight advantages. Its arc-shaped guide surface design eliminates dead angles in the discharge area, and its rationally laid-out inlet and outlet pipes are suitable for materials of varying viscosities and offer convenient operation. The cover not only allows for flexible opening and reliable locking of the sealing cap and convenient replenishment of the feeding hole, but also establishes a "sealed in place - start allowed" safety logic through a trigger sensor linked with the control center, preventing the risk of accidental equipment startup. A threshold comparison mechanism between the liquid level sensor and the control center prevents material from drying out and overflowing, and provides timely alarms. The adjustment mechanism allows for flexible adjustment of the radial magnetic ring height to adapt to different working conditions. Through structural optimization, automated linkage, and safety control design, the overall equipment balances mixing uniformity, ease of operation, operational stability, and safety, meeting the high-quality mixing needs of various materials in food, chemical, and other fields. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a cross-sectional view of the entire invention; Figure 3 This is a schematic diagram of the structure of the magnetic levitation stirring component of the present invention; Figure 4 This is a structural schematic diagram of the magnetic levitation stirring component of the present invention from another perspective; Figure 5 This is a cross-sectional view of the magnetic levitation stirring component of the present invention; Figure 6 This is a cross-sectional view of the magnetic levitation stirring component of the present invention from another perspective; Figure 7 For the present invention Figure 1 A magnified structural diagram of part A in the middle; Figure 8 For the present invention Figure 2 A magnified structural diagram of part B in the middle section; Figure 9 This is a schematic diagram of the tank body of the present invention; Figure 10 This is a schematic diagram of the adjustment mechanism and stator assembly of the present invention; Figure 11 This is a schematic diagram of the adjustment mechanism of the present invention.

[0036] The reference numerals in the figures include: 1. Frame; 2. Stirring mechanism; 3. Control center; 4. Tank; 5. Magnetic levitation stirring component; 6. Stator assembly; 7. Axial magnet; 8. Column; 9. Connecting rod; 11. Radial magnet ring; 12. Annular shell; 13. Annular permanent magnet; 14. Non-magnetic isolation ring; 15. Annular silicon steel sheet; 16. First set of rotating rings; 17. Second set of rotating rings; 18. Third set of rotating rings; 19. Fourth set of rotating rings; 21. First straight rod; 22. Second straight rod; 23. First hole; 24. Second hole; 29. ​​Hall displacement sensor; 32. Rotating seat; 33. Locking component; 34. Rotating shaft; 35. Sealing cover; 36. Locking seat; 37. First support; 38. Rotating block; 39. Handle; 41. Second support; 42. Limiting component; 43. Limiting notch; 44. Inner shaft; 45. Connecting block; 46. Third channel; 47. Fourth channel; 48. Start-up trigger sensor; 49. Annular air guide cover; 51. Heat dissipation device; 52. Air outlet; 53. Feed pipe; 54. Discharge pipe; 55. Feed inlet; 56. Arc-shaped guide surface; 57. Liquid level sensor; 58. Discharge outlet; 100. Adjustment mechanism; 200. Adjustment rod; 300. Sliding block; 400. Mounting block; 500. Slot hole; 600. Locking seat; 700. Through hole; 800. Bolt; 900. Threaded hole; 611. Radial magnetic ring; 612. Rotor assembly; 613. Vertical magnet. Detailed Implementation

[0037] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0038] Please see Figures 1 to 11 As shown, the present invention provides a magnetic levitation stirring device for materials, characterized in that it includes a frame 1, a stirring mechanism 2 mounted on the frame 1, and a control center 3 electrically connected to the stirring mechanism 2; the stirring mechanism 2 includes a tank 4 fixedly mounted on the frame 1, a magnetic levitation stirring element 5 rotatably mounted inside the tank 4, a stator assembly 6 and a radial magnetic ring 611 located around the tank 4, and an axial magnet 7 located below the tank 4; the magnetic levitation stirring element 5 includes a main body, a vertical magnet 613 located below the main body, a radial magnet ring 11 located on the main body, and a rotor assembly 612; after the stator assembly 6 is energized, the stator assembly 6 interacts with the rotor assembly 612 of the magnetic levitation stirring element 5 to drive the magnetic levitation stirring element 5 to rotate and stir the materials inside the tank 4, the vertical magnet 613 and the axial magnet 7 repel each other to achieve axial levitation of the magnetic levitation stirring element 5, and the radial magnet ring 11 and the radial magnetic ring 611 repel each other to achieve radial levitation of the magnetic levitation stirring element 5.

[0039] The frame 1 supports the stirring mechanism 2 and the control center 3. Inside the tank 4 of the stirring mechanism 2, a magnetically levitated stirring component 5, including a main body, a vertical magnet 613, a radial magnet ring 11, and a rotor assembly 612, is rotatably mounted. A stator assembly 6 and a radial magnetic ring 611 are set around the tank 4, and an axial magnet 7 is set below the tank 4. After the control center 3 controls the stator assembly 6 to be energized, it interacts with the rotor assembly 612 to drive the magnetically levitated stirring component 5 to rotate. At the same time, the vertical magnet 613 and the axial magnet 7 repel each other to achieve axial levitation, and the radial magnet ring 11 and the radial magnetic ring 611 repel each other to achieve radial levitation, thereby completing the stirring of materials inside the tank 4. Its beneficial effects are that the magnetic levitation structure allows the stirring component to levitate and rotate without contact, greatly reducing friction loss and the risk of material contamination. The stirring process is more stable and efficient, and the overall structure is compact and can be precisely controlled by the control center 3, making it suitable for high-quality stirring scenarios of various materials.

[0040] The main body includes a column 8 and a connecting rod 9 connected to the column 8. A vertical magnet 613 is disposed at the lower end of the column 8. A rotor assembly 612 and a radial magnet ring 11 are connected to the end of the connecting rod 9 away from the column 8. The rotor assembly 612 and the radial magnet ring 11 are arranged around the column 8. The column 8, the connecting rod 9, the vertical magnet 613 or the radial magnet ring 11 have a stirring part, which is used to stir the material in the tank 4.

[0041] The frame 1 supports the stirring mechanism 2 and the control center 3. A magnetically levitated stirring element 5 is rotatably mounted inside the tank 4 of the stirring mechanism 2. The main body of this stirring element includes a column 8 and a connecting rod 9. A vertical magnet 613 is mounted on the lower end of the column 8. A radial magnet ring 11 is connected to the end of the connecting rod 9 away from the column 8 and is arranged around the column 8. The column 8, connecting rod 9, vertical magnet 613, or radial magnet ring 11 are equipped with stirring sections for stirring materials inside the tank 4. A sub-assembly 6 and a radial magnetic ring 611 are set around the tank 4. An axial magnet 7 is located below the tank 4. The control center... After the stator assembly 6 is powered on, it interacts with the rotor assembly 612 of the magnetically levitated stirring component 5 to drive it to rotate. At the same time, the vertical magnet 613 and the axial magnet 7 repel each other to achieve axial levitation, and the radial magnet ring 11 and the radial magnetic ring 611 repel each other to achieve radial levitation, thereby completing the material stirring. Its beneficial effect is that the magnetic levitation structure enables the stirring component to levitate and rotate without contact, which greatly reduces friction loss and the risk of material contamination. The stirring part is integrated with the relevant components of the main body, making the stirring more comprehensive and uniform. The overall structure is compact and the control is precise, making it suitable for high-quality stirring scenarios of various materials.

[0042] The radial magnet ring 11 includes an annular housing 12, an annular permanent magnet 13, a non-magnetic isolation ring, and an annular silicon steel sheet disposed within the annular housing 12. The non-magnetic isolation ring is used to isolate the annular permanent magnet 13 and the annular silicon steel sheet.

[0043] Using the annular shell 12 as a supporting foundation, an annular permanent magnet 13, a non-magnetic isolation ring, and an annular silicon steel sheet are integrated within the shell. The non-magnetic isolation ring is positioned between the annular permanent magnet 13 and the annular silicon steel sheet to achieve physical isolation and magnetic circuit separation between the two. The components are assembled together to form a complete radial magnet ring 11. Its beneficial effects are that the non-magnetic isolation ring effectively avoids magnetic interference between the annular permanent magnet 13 and the annular silicon steel sheet, ensuring stable magnetic circuit transmission; the annular silicon steel sheet can enhance magnetic flux density and improve magnetic efficiency; and the annular shell 12 provides protection and fixation for the internal components. The overall structural design is reasonable and the assembly is convenient, which can significantly improve the reliability and magnetic performance stability of the radial magnet ring 11.

[0044] The radial magnet ring 11 includes a first set of rotating rings 16 and a second set of rotating rings 17. The rotor assembly 612 is located between the first set of rotating rings 16 and the second set of rotating rings 17. There are three sets of connecting rods 9, which are arranged along the rotation axis of the magnetic levitation stirring component 5. The three sets of connecting rods 9 are respectively connected to the first set of rotating rings 16, the second set of rotating rings 17, and the rotor assembly 612. There are two radial magnetic rings 611, which are used in conjunction with the first set of rotating rings 16 and the second set of rotating rings 17. The vertical magnet 613 is located below the second set of rotating rings 17. The connecting rod 9 includes a first straight rod 21 and a second straight rod 22 that intersects the first straight rod 21. The end of the first straight rod 21 away from the column 8 is connected to the radial magnet ring 11 or the rotor assembly 612, and the end of the second straight rod 22 away from the column 8 is connected to the radial magnet ring 11 or the rotor assembly 612.

[0045] The cross-designed first straight rod 21 and second straight rod 22 significantly enhance the structural strength and stress stability of the connecting rod 9, ensuring a firm and reliable connection with the rotating ring and rotor assembly 612. The radial magnetic ring 11 is divided into two sets of rotating rings, with the rotor assembly 612 centrally located. The three sets of connecting rods 9 are arranged in an orderly manner along the rotation axis 34 and connect to each component accordingly. With the precise cooperation between the two radial magnetic rings 611 and the two sets of rotating rings, a clear division of labor between rotor drive and radial suspension functions is achieved, and the magnetic circuit distribution is optimized, significantly improving the accuracy and stability of radial suspension. The vertical magnet 613 is located below the second set of rotating rings 17, and its cooperation with the axial magnet 7 is more in line with the logic of force transmission. The overall component layout is compact and reasonable, reducing assembly redundancy and making the force transmission more balanced, further improving the stability and durability of the magnetic levitation stirring component 5 during operation, and adapting to the needs of long-term and efficient stirring operations.

[0046] The side wall of the column 8 is provided with multiple sets of intersecting holes corresponding to multiple sets of connecting rods 9. Each set of intersecting holes includes a first hole 23 and a second hole 24 arranged radially along the column 8 and intersecting each other. The first hole 23 and the second hole 24 respectively accommodate a first straight rod 21 and a second straight rod 22. The column 8 is provided with a filling material for assisting levitation.

[0047] The entire assembly comprises a first set of rotating rings 16, a second set of rotating rings 17, a third set of rotating rings 18, and a fourth set of rotating rings 19. The fourth set of rotating rings 19 integrates the function of a vertical magnet 613, and the second set of rotating rings 17 is a rotor assembly 612. The column 8 serves as the main support component, and its sidewalls are provided with multiple sets of intersecting holes corresponding to the three sets of connecting rods 9. Each set of intersecting holes consists of a first hole 23 and a second hole 24 arranged radially along the column 8 and intersecting each other. These holes respectively accommodate the first straight rod 21 and the second straight rod 22 of each set of connecting rods 9. The three sets of connecting rods 9 are arranged sequentially along the rotation axis 34 of the magnetic levitation stirring component 5. The ends of the first straight rod 21 and the second straight rod 22 away from the column 8 are fixedly connected to the first set of rotating rings 16, the second set of rotating rings 17, and the third set of rotating rings 18, respectively. The column 8 also contains a filling material for assisting levitation. The two radial magnetic rings 611 used in conjunction form a radial magnetic repulsion structure with the first set of rotating rings 16 and the third set of rotating rings 18, respectively. Its beneficial effects are as follows: the cross-hole body and the first straight rod 21 and the second straight rod 22 with cross design are precisely matched, which not only ensures the accuracy of assembly positioning, but also enhances the connection between the connecting rod 9 and the column 8 and the overall structural strength; the filling material in the column 8 further helps to improve the suspension stability, and with the precise matching of the two radial magnetic rings 611 and the corresponding rotating ring, the radial suspension effect is more balanced and reliable; the division of labor of each component is clear and the assembly logic is rigorous. The vertical magnet 613 and the rotating ring are integrated in design and multiple groups of components are arranged in an orderly manner along the axis, making the overall structure more compact, effectively optimizing the magnetic circuit distribution and force balance, and improving the stability and durability during use.

[0048] The magnetic levitation stirring device also includes multiple Hall displacement sensors 29. The Hall displacement sensors 29 and the stator assembly 6 are electrically connected to the control center 3. The multiple Hall displacement sensors 29 are evenly distributed along the circumference of the radial magnetic ring 611. The Hall displacement sensors 29 are used to detect the displacement of the magnetic levitation stirring component 5 in real time and transmit the detected displacement signal to the control center 3. After receiving the displacement signal, the control center 3 analyzes and calculates the direction and magnitude of the radial displacement of the magnetic levitation stirring component 5 relative to the tank 4, and dynamically adjusts the power supply parameters of each phase winding of the radial magnetic ring 611. This changes the directional magnetic field force between the radial magnetic ring 611 and the magnetic levitation stirring component 5, so as to correct the levitation attitude of the magnetic levitation stirring component 5 in real time and ensure that the magnetic levitation stirring component 5 is suspended in the tank 4 without tilting.

[0049] Hall displacement sensor 29 and stator assembly 6 are both electrically connected to control center 3; magnetic levitation agitator 5 is rotatably installed inside tank 4 of agitation mechanism 2, and the side wall of the column 8 of its main body is provided with multiple sets of cross holes corresponding to three sets of connecting rods 9. Each set of cross holes includes a first hole 23 and a second hole 24 that cross radially, respectively accommodating the first straight rod 21 and the second straight rod 22 of the connecting rod 9. The column 8 is provided with auxiliary levitation filler; the three sets of connecting rods 9 are arranged along the rotation axis, and their ends away from the column 8 are respectively fixedly connected to the first, second, and third sets of rotating rings. The fourth set of rotating rings 19 integrates the function of vertical magnet 613, the second set of rotating rings 17 is the rotor assembly 612, and the two radial magnetic rings 611 are respectively connected to the first, second, and third sets of rotating rings. The first and third sets of rotating rings form a radial magnetic repulsion engagement, and multiple Hall displacement sensors 29 are evenly distributed circumferentially along the radial magnetic ring 611. During operation, the control center 3 controls the stator assembly 6 to be energized, which interacts with the rotor assembly 612 to drive the stirring component to rotate. The vertical magnet 613 repulses the axial magnet 7 below the tank 4 to achieve axial suspension, and the radial magnetic repulsion engagement achieves initial radial suspension. At the same time, the Hall displacement sensors 29 detect the displacement of the suspension position of the stirring component in real time and transmit the displacement signal to the control center 3. After analyzing the direction and magnitude of the displacement, the control center 3 dynamically adjusts the power supply parameters of each phase winding of the radial magnetic ring 611, changes the directional magnetic field force, and corrects the suspension posture in real time to ensure that the stirring component is suspended in the tank 4 without tilting. Its beneficial effects are as follows: the cross-hole body and the cross-connecting rod 9 are precisely matched, and the filler assists in levitation, enhancing the structural strength and initial levitation stability; the multiple sets of rotating rings have clear division of labor and integrated design, making the structure more compact and optimizing the magnetic circuit and force balance; the closed-loop control of the Hall displacement sensor 29 and the control center 3 realizes real-time detection and dynamic correction of the levitation position, completely avoiding the tilting of the stirring parts, greatly improving the levitation accuracy and the stability of the stirring process, and with the non-contact magnetic levitation structure, reducing friction loss and material contamination. The overall equipment is precisely controlled, durable, and suitable for various high-quality material stirring scenarios.

[0050] The mixing equipment also includes a cover for covering the tank 4. The cover includes a rotating seat 32 on the frame 1, a locking component 33, a rotating shaft 34 on the rotating seat 32, a sealing cover 35 rotatably mounted on the rotating shaft 34, and a locking seat 36 on the sealing cover 35. The sealing cover 35 has a feeding hole communicating with the tank 4. The locking component 33 includes a first support 37 on the frame 1, a rotating block 38 rotatably mounted on the first support 37, and a handle 39 fixedly mounted on the rotating block 38. The locking seat 36 includes a second support 41 and a limiting component 42 mounted on the second support 41. The limiting component 42 has a limiting notch 43 on the side near the locking component 33. Rotating the handle 39 drives the rotating block 38 to engage with the limiting notch 43, so that the sealing cover 35 covers the tank 4.

[0051] The rotating seat 32, locking component 33, and rotating shaft 34 are installed on the frame 1. The sealing cover 35 can be flexibly rotated and assembled on the rotating seat 32 via the rotating shaft 34, and the sealing cover 35 has a feeding hole that directly communicates with the inside of the tank 4. The side of the sealing cover 35 is fixed with a locking seat 36, which consists of a second support 41 and an integrated limiting component 42. The limiting component 42 has a limiting notch 43 reserved on the side facing the locking component 33. The corresponding locking component 33 consists of a first support 37 on the frame 1, a rotating block 38 rotatably connected to the first support 37, and a handle 39 fixed on the outside of the rotating block 38. During operation, simply rotate the handle 39 to drive the rotating block 38 to accurately engage with the limiting notch 43, so as to achieve a stable fit between the sealing cover 35 and the tank 4. Its beneficial effects are as follows: the rotating assembly design makes opening and closing the sealing cover 35 effortless and convenient, without the need for complicated disassembly; the locking structure achieves reliable fixation through mechanical snap-fit, which can effectively ensure the sealing of the tank 4 during the mixing process and prevent material leakage or the entry of external pollutants; the independent setting of the feeding port allows materials to be added directly without opening the sealing cover 35, which greatly simplifies the operation process. The overall structure is simple and easy to assemble, and can efficiently adapt to the dual needs of sealing protection and convenient feeding of the tank 4.

[0052] The inner side of the column 8 is also provided with an inner shaft 44 and multiple sets of connecting blocks 45 disposed on the inner shaft 44. Each set of connecting blocks 45 is connected to each set of connecting rods 9. The connecting block 45 is provided with a third channel 46 and a fourth channel 47 intersecting with the third channel 46. The third channel 46 is coaxially connected with the first hole 23, and the fourth channel 47 is coaxially connected with the second hole 24. The first straight rod 21 passes through the third channel 46 of the connecting block 45, and the second straight rod 22 passes through the fourth channel 47 of the connecting block 45.

[0053] An inner shaft 44 is provided on the inner side of the column 8. Multiple sets of connecting blocks 45 are mounted on the inner shaft 44. Each set of connecting blocks 45 is precisely matched with a corresponding set of connecting rods 9. A third channel 46 and a fourth channel 47 intersecting the third channel 46 are provided on the connecting block 45. The third channel 46 is coaxially connected with the first hole 23 on the column 8, and the fourth channel 47 is coaxially connected with the second hole 24 on the column 8. During assembly, the first straight rod 21 passes through the first hole 23 of the column 8 and the third channel 46 of the connecting block 45 in sequence, and the second straight rod 22 passes through the second hole 24 of the column 8 and the fourth channel 47 of the connecting block 45 in sequence, so as to achieve a stable connection between the connecting rod 9 and the column 8 and the inner shaft 44. Its beneficial effects are as follows: the addition of the inner shaft 44 and the connecting block 45 further strengthens the installation support strength of the connecting rod 9 and avoids deformation at the connection point; the coaxial through design of the third and fourth channels and the cross holes of the column 8 ensures the positioning accuracy and coaxiality of the first and second straight rods during assembly and reduces assembly deviation; the precise matching of the cross channels and the straight rods of the cross structure makes the force transmission more balanced, greatly improving the stability and durability of the overall connection structure, while the assembly logic is clear and easy to install and maintain.

[0054] The stirring equipment also includes an annular air guide shroud 49 mounted on the frame 1 and multiple sets of heat dissipation devices 51 mounted on the annular air guide shroud 49. The multiple sets of heat dissipation devices 51 are arranged around the tank body 4. The annular air guide shroud 49 and the tank body 4 have an annular cavity. The bottom of the annular air guide shroud 49 is provided with multiple sets of air outlets 52. The heat dissipation device 51 is a fan. After being powered on, the heat dissipation device 51 rotates to bring cold air from the outside into the annular cavity. The cold air from the outside cools the heat generated by the rotation of the stator assembly 6, the radial magnetic ring 611 and the magnetically levitated stirring component 5. The cooled hot air is discharged through the air outlets 52.

[0055] A ring-shaped air guide shroud 49 is mounted on the frame 1. Multiple sets of fans (heat dissipation devices 51) are installed on the air guide shroud and distributed around the tank 4. A ring-shaped cavity is formed between the ring-shaped air guide shroud 49 and the tank 4. Multiple sets of air outlets 52 are opened at the bottom of the air guide shroud. When working, the heat dissipation device 51 is powered on and rotates, introducing cold air from the outside into the ring-shaped cavity. The cold air flows through the stator assembly 6, the radial magnetic ring 611, and the magnetic levitation stirring component 5, efficiently cooling the heat generated by their operation. The hot air after heat exchange is discharged from the equipment through the bottom air outlets 52. Its beneficial effects are: multiple sets of fans are arranged around the tank 4, forming a full-area heat dissipation airflow with the ring-shaped cavity, ensuring uniform heat dissipation without dead corners; the cold air flows directly through the core heat-generating components, resulting in high heat dissipation efficiency and rapid reduction of the equipment's operating temperature, preventing high temperatures from affecting the magnetic levitation performance and component lifespan; the ring-shaped air guide shroud 49 guides the airflow in a directional manner, and the air outlets 52 ensure timely discharge of hot air, forming a stable heat dissipation cycle. Moreover, the fan structure is simple and easy to maintain, allowing the equipment to adapt to long-term continuous working scenarios.

[0056] The tank body 4 also includes a feed pipe 53 disposed on the upper side wall of the tank body 4 and a discharge pipe 54 disposed at the center of the bottom of the tank body 4. The feed pipe 53 is provided with a feed inlet 55 connected to the tank body 4, and the discharge pipe 54 is provided with a discharge outlet 58 connected to the tank body 4. The feed pipe 53 is located at the upper end of the side wall, which facilitates the smooth addition of materials and avoids interference with the top cover of the tank 4 and the internal agitator. The discharge pipe 54 is located at the bottom center, which can minimize material residue and ensure thorough discharge. The feed port 55 and the discharge port 58 correspond to independent pipes, with a simple structure and clear division of labor, making the input and output of materials convenient and efficient, and adapting to the continuous operation requirements of the mixing equipment.

[0057] Tank 4 is made of stainless steel and has a thickness of 2mm.

[0058] The tank body 4 is made of stainless steel and formed by welding. Its overall thickness is set at 2mm. It is used to hold the materials to be stirred and provides a stable working chamber for the internal magnetic levitation stirring component 5. Its advantages are: stainless steel has excellent corrosion resistance and hygiene, will not react with materials, ensures material purity, and is suitable for stirring needs in various fields such as food and chemicals; the welding process makes the tank body 4 structurally compact and highly sealed, effectively preventing material leakage; the 2mm thickness design ensures structural stability while achieving a lightweight tank body 4, reducing the load on the frame 1, and facilitating manufacturing and controlling production costs.

[0059] The radial magnetic ring 611 includes an annular magnetic guide frame, multiple protrusions disposed on the annular magnetic guide frame, and multiple coils respectively wound on the multiple protrusions. The annular magnetic guide frame is arranged around the tank body 4, and the protrusions and coils are located between the annular magnetic guide frame and the tank body 4.

[0060] The structure comprises a ring-shaped magnetic guide frame, multiple protrusions, and multiple coils. The ring-shaped magnetic guide frame is arranged around the tank body 4, and the multiple protrusions are spaced apart on the ring-shaped magnetic guide frame. Each coil is wound around a corresponding protrusion, and both the protrusions and the coils are located between the ring-shaped magnetic guide frame and the tank body 4, forming a magnetic field generating structure surrounding the tank body 4. Its advantages are: the ring-shaped magnetic guide frame can guide the directional distribution of the magnetic field, improving the utilization rate of the magnetic circuit; the protrusions provide a stable winding carrier for the coils and maintain a reasonable distance between the coils and the tank body 4, making the magnetic field action more precise; the combined design of multiple coils and protrusions allows for flexible adjustment of the magnetic field strength and direction by controlling the coil power supply, adapting to the dynamic correction requirements of radial suspension; the overall structure is compact, the ring-shaped layout is highly compatible with the tank body 4, processing and assembly are convenient, and it can effectively ensure the stability of radial magnetic repulsion.

[0061] The limiting notch 43 is equipped with a start trigger sensor 48 connected to the control center 3. When the operator rotates the handle 39 to drive the rotating block 38 to engage with the limiting notch 43, so that the sealing cover 35 is accurately placed on the tank body 4, the start trigger sensor 48 detects the engagement signal between the rotating block 38 and the limiting notch 43 and transmits this signal to the control center 3 in real time. After receiving the signal, the control center 3 determines that the sealing cover 35 has completed the correct closing operation and starts the overall operation program of the magnetic levitation stirring equipment.

[0062] A start-trigger sensor 48, electrically connected to the control center 3, is installed at the limiting notch 43 on the lid. When the operator rotates the handle 39 to drive the rotating block 38 into the limiting notch 43 to accurately cover the tank 4 with the sealing lid 35, the start-trigger sensor 48 simultaneously detects the engagement signal between the rotating block 38 and the limiting notch 43 and transmits this signal to the control center 3 in real time. After receiving the signal, the control center 3 determines that the sealing lid 35 has been correctly closed and then automatically starts the overall operation program of the magnetic levitation stirring equipment. Its beneficial effect is that, through the linkage design between the start-trigger sensor 48 and the control center 3, a "sealing in place - start allowed" safety control logic is constructed, which completely avoids the safety hazards such as material splashing and external impurities intrusion caused by the equipment being started when the sealing lid 35 is not closed or not closed in place. At the same time, no additional manual operation of the start program is required, which improves the convenience and automation of equipment operation. Moreover, the sensor is integrated at the limiting notch 43 without damaging the original lid locking structure, taking into account both safety performance and structural compatibility, and ensuring the safety and reliability of equipment operation.

[0063] An arc-shaped guide surface 56 is provided at the connection between the discharge pipe 54 and the tank body 4.

[0064] The arc-shaped guide surface 56 at the connection can eliminate dead corners for material accumulation, prevent high-viscosity materials from remaining at the connection between the pipe and the tank 4, and guide the smooth flow of materials, improving discharge efficiency and the cleanliness of the tank 4. The overall structure is adapted to the stirring and conveying needs of materials with different viscosities, taking into account both practicality and convenience.

[0065] The tank 4 is also equipped with a liquid level sensor 57 electrically connected to the control center 3. The detection end of the liquid level sensor 57 faces the material area inside the tank 4. It is used to detect the liquid level height of the material inside the tank 4 in real time and generate a liquid level signal, which is then transmitted to the control center 3. The control center 3 presets a minimum safe liquid level threshold and a maximum safe liquid level threshold. After receiving the liquid level signal, it compares it with the preset threshold. When the detected liquid level is lower than the minimum safe liquid level threshold, the control center 3 triggers an alarm and suspends the stirring operation of the magnetic levitation agitator 5. When the detected liquid level is higher than the maximum safe liquid level threshold, the control center 3 triggers an alarm and can also control the feed control valve of the feed pipe 53 to close, so as to prevent material overflow.

[0066] The stirring device also includes an adjustment mechanism 100 disposed on the side of the radial magnetic ring 611. The adjustment mechanism 100 includes an adjustment rod 200 disposed on the frame 1, an adjustment block slidably disposed on the adjustment rod 200, and a locking member disposed on the adjustment block. The adjustment block is connected to the side of the radial magnetic ring 611. The adjustment block includes a sliding block 300 and a mounting block 400 integrally formed with the sliding block 300. The adjustment rod 200 is provided with a slide rail disposed along the length of the adjustment rod 200. The middle part of the adjustment rod 200 is provided with a slot 500 parallel to the slide rail. There are two sets of slide rails, located on both sides of the slot 500. The sliding block 300 is slidably disposed on the adjustment rod 200. The mounting block 400 protrudes from the slot 500 and connects to the locking component. The adjusting rod 200 has a locking seat 600 on the side away from the slide rail. The locking seat 600 has a through hole 700. The locking component includes a bolt 800 rotatably mounted on the locking seat 600. The mounting block 400 has a threaded hole 900. After the radial magnetic ring 611 is installed at a certain height, the adjusting block is pushed to slide along the slide rail on the adjusting rod 200 to the required height position. Then, the bolt 800 is passed through the through hole 700 of the locking seat 600 and the threaded hole 900 on the mounting block 400 in sequence and tightened to fix the adjusting block and the adjusting rod 200 relative to each other, thereby fixing the installation height of the radial magnetic ring 611.

[0067] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A magnetic levitation stirring apparatus for a material, characterized by: The utility model relates to a kind of magnetic suspension stirring device, including rack (1), stirring mechanism (2) being arranged on rack (1) and control center (3) being electrically connected with stirring mechanism (2);The stirring mechanism (2) includes fixedly arranged on the tank body (4) of rack (1), rotatingly arranged in the magnetic suspension stirring piece (5) of tank body (4), stator assembly (6) and radial magnetism ring (611) located at the periphery of tank body (4), axially magnet (7) being arranged below tank body (4);Magnetic suspension stirring piece (5) includes main part, vertical magnet (613) being arranged below main part, radial magnet ring (11) and rotor assembly (612) being arranged on main part;After stator assembly (6) energization, stator assembly (6) and the rotor assembly (612) of magnetic suspension stirring piece (5) interact to drive magnetic suspension stirring piece (5) rotation to stir the material in tank body (4), vertical magnet (613) and axially magnet (7) repel to realize the axial suspension of magnetic suspension stirring piece (5), radial magnet ring (11) and radial magnetism ring (611) repel to realize the radial suspension of magnetic suspension stirring piece (5).

2. A magnetic levitation stirring apparatus for material as claimed in claim 1, wherein: Main part includes column (8), connecting rod piece (9) being connected with column (8), vertical magnet (613) is arranged at the lower end of column (8), rotor assembly (612), radial magnet ring (11) are connected with the end of connecting rod piece (9) away from column (8), rotor assembly (612), radial magnet ring (11) are arranged around column (8);Column (8), connecting rod piece (9), vertical magnet (613) or radial magnet ring (11) have stirring part, and stirring part is used to stir the material in tank body (4).

3. A magnetic levitation stirring apparatus for material as claimed in claim 1, wherein: The radial magnet ring (11) includes an annular housing (12), an annular permanent magnet (13) arranged in the annular housing (12), a non-magnetic isolation ring (14), and an annular silicon steel sheet (15). The non-magnetic isolation ring (14) is used to isolate the annular permanent magnet (13) and the annular silicon steel sheet (15).

4. A magnetic levitation stirring apparatus for material according to claim 2, characterized in that: The radial magnet ring (11) includes a first set of rotating rings (16) and a second set of rotating rings (17). The rotor assembly (612) is located between the first set of rotating rings (16) and the second set of rotating rings (17). The connecting rod piece (9) has three sets. The three sets of connecting rod pieces (9) are arranged along the rotation axis direction of the magnetic suspension stirring piece (5). The three sets of connecting rod pieces (9) are respectively connected with the first set of rotating rings (16), the second set of rotating rings (17), and the rotor assembly (612). The number of radial magnetism rings (611) is two. The two radial magnetism rings (611) are respectively used with the first set of rotating rings (16) and the second set of rotating rings (17). The vertical magnet (613) is located below the second set of rotating rings (17). The connecting rod piece (9) includes a first straight rod (21) and a second straight rod (22) intersecting the first straight rod (21). One end of the first straight rod (21) away from the column (8) is connected with the radial magnet ring (11) or the rotor assembly (612). One end of the second straight rod (22) away from the column (8) is connected with the radial magnet ring (11) or the rotor assembly (612).

5. A magnetic levitation stirring apparatus for material as claimed in claim 4, wherein: The side wall of the column (8) is provided with a plurality of groups of cross holes corresponding to a plurality of groups of connecting rods (9), each group of cross holes includes a first hole body (23) and a second hole body (24) arranged radially and intersected along the column (8), the first hole body (23) and the second hole body (24) accommodate a first straight rod (21) and a second straight rod (22) respectively; the column (8) contains a filler for assisting suspension.

6. A magnetic levitation stirring apparatus for material as claimed in claim 1, wherein: The magnetic suspension stirring device further comprises a plurality of Hall displacement sensors (29), the Hall displacement sensors (29) and the stator assembly (6) are electrically connected with the control center (3); the plurality of Hall displacement sensors (29) are uniformly distributed along the circumferential direction of the radial magnetic ring (611), and the Hall displacement sensors (29) are used for detecting the suspension position offset of the magnetic suspension stirring part (5) in real time and transmitting the detected displacement signal to the control center (3); after receiving the displacement signal, the control center (3) analyzes and calculates the offset direction and offset amplitude of the magnetic suspension stirring part (5) relative to the inner diameter of the tank body (4), dynamically adjusts the power supply parameters of each phase winding of the radial magnetic ring (611), and then changes the directional magnetic field force between the radial magnetic ring (611) and the magnetic suspension stirring part (5), so as to correct the suspension posture of the magnetic suspension stirring part (5) in real time and ensure that the magnetic suspension stirring part (5) is suspended in the tank body (4) without tilting.

7. A magnetic levitation stirring apparatus for material as claimed in claim 1, wherein: The stirring device further comprises a cover part for covering the tank body (4), the cover part comprises a rotating seat (32) arranged on the rack (1), a locking component (33), a rotating shaft (34) arranged on the rotating seat (32), a sealing cover (35) rotatably arranged on the rotating shaft (34), and a locking seat (36) arranged on the sealing cover (35), the sealing cover (35) has a feeding hole communicating with the tank body (4); the locking component (33) comprises a first support (37) arranged on the rack (1), a rotating block (38) rotatably arranged on the first support (37), and a handle (39) fixedly arranged on the rotating block (38), the locking seat (36) comprises a second support (41) and a limiting piece (42) arranged on the second support (41), the limiting piece (42) is provided with a limiting gap (43) on the side close to the locking component (33), and the rotating handle (39) drives the rotating block (38) to be clamped into the limiting gap (43) to realize that the sealing cover (35) covers the tank body (4).

8. A magnetic levitation stirring apparatus for material as claimed in claim 5 wherein: The inner side of the column (8) is further provided with an inner shaft body (44) and a plurality of groups of connecting blocks (45) arranged on the inner shaft body (44), each group of connecting blocks (45) is connected with each group of connecting rods (9), the connecting block (45) is provided with a third hole (46) and a fourth hole (47) intersecting with the third hole (46), the third hole (46) is coaxially through the first hole body (23), and the fourth hole (47) is coaxially through the second hole body (24); the first straight rod (21) passes through the third hole (46) of the connecting block (45), and the second straight rod (22) passes through the fourth hole (47) of the connecting block (45).

9. A magnetic levitation stirring apparatus for material as claimed in claim 1, wherein: The stirring device further comprises a ring-shaped air guide cover (49) arranged on the rack (1), a plurality of sets of heat dissipation devices (51) arranged on the ring-shaped air guide cover (49), the plurality of sets of heat dissipation devices (51) being arranged around the tank body (4), the ring-shaped air guide cover (49) having a ring-shaped cavity with the tank body (4), and the bottom of the ring-shaped air guide cover (49) being provided with a plurality of air outlet holes (52); the heat dissipation device (51) is a fan, and the heat dissipation device (51) rotates to bring external cold gas into the ring-shaped cavity after being powered on, the external cold gas cools the heat generated by the stator assembly (6), the radial magnetic ring (611) and the magnetic suspension stirring piece (5), and the cooled hot gas is discharged through the air outlet holes (52).

10. A magnetic levitation stirring apparatus for material as claimed in claim 1, wherein: The radial magnetic ring (611) comprises a ring-shaped magnetic guide frame, a plurality of protruding portions arranged on the ring-shaped magnetic guide frame, and a plurality of coils respectively arranged on the plurality of protruding portions, the ring-shaped magnetic guide frame is arranged around the tank body (4), and the protruding portions and the coils are located between the ring-shaped magnetic guide frame and the tank body (4).

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