A new type of sterile magnetic stirring tank

Abstract

The utility model relates to the technical field of stirring tank, specifically disclose a novel sterile magnetic stirring tank, including the jar body, the lower extreme of jar body is provided with magnetic stirring subassembly, the top of jar body is provided with sterile guarantee subassembly, the sterile guarantee subassembly includes the feed inlet and inoculation port of pipeline outer wall series connection with sterile filter, the sterile filter contains hydrophilic microporous PES filter membrane, the top of jar body is provided with steam sterilization interface and pipeline outer wall series connection with the air filter exhaust port of, the air filter contains hydrophobic microporous PTFE filter membrane, the utility model discloses adopts magnetic coupling drive to avoid mechanical seal pollution, cooperates double sterile filtration system and on -line steam sterilization function, effectively ensures the sterile environment of the whole process of coating production, integrates pressure and temperature monitoring system, realizes the collaborative operation of each component through controller, ensures that coating is evenly mixed under constant temperature environment, significantly improves production stability and product quality.

Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, and specifically discloses a novel sterile magnetic mixing tank. Background Technology

[0002] In the field of high-end coatings production, especially in the production of medical antibacterial coatings, food-grade packaging coatings, and coatings for electronic components, there are strict requirements for the cleanliness of mixing equipment and the protection of materials.

[0003] Traditional mechanically sealed mixing tanks are prone to metal wear particles and sealing grease leakage during operation, which seriously affects the quality stability of high-purity products such as medical antibacterial coatings and food-grade coatings. On the other hand, when producing functional coatings containing bioactive ingredients, existing mixing tanks cannot achieve in-tank online sterilization. Therefore, a new type of sterile magnetic mixing tank is needed to solve this problem. Utility Model Content

[0004] This invention proposes a novel sterile magnetic stirring tank, which achieves sterile protection throughout the coating production process through magnetic sealing transmission and a dual sterile filtration system, and significantly improves production stability and product quality by combining temperature control and pressure monitoring systems.

[0005] This utility model is implemented as follows: a novel sterile magnetic stirring tank includes a tank body, a discharge port with an electromagnetic valve installed on the outer wall at the lower end of the tank body, a magnetic stirring assembly at the lower end of the tank body, and a sterile protection assembly at the top of the tank body. The aseptic protection component includes an inlet and an inoculation port with an aseptic filter connected in series on the outer wall of the pipe. The aseptic filter contains a hydrophilic microporous PES filter membrane. The top of the tank is provided with a steam sterilization interface and an exhaust port with an air filter connected in series on the outer wall of the pipe. The air filter contains a hydrophobic microporous PTFE filter membrane.

[0006] As a preferred embodiment of the present invention, the magnetic stirring assembly includes a drive motor installed at the bottom of the tank, an annular magnet assembly fixedly connected to the output end of the drive motor, and a stir bar coupled to the annular magnet assembly rotatably connected to the bottom of the tank interior.

[0007] As a preferred embodiment of this novel sterile magnetic stirring tank, the tank body is provided with two symmetrically distributed heating rods.

[0008] As a preferred embodiment of this novel sterile magnetic stirring tank, a pressure sensor is provided at the top of the inner wall of the tank, and a temperature sensor is provided in the middle of the inner wall of the tank.

[0009] In a preferred embodiment of this novel sterile magnetic stirring tank, the magnetic blocks of the annular magnet assembly are arranged radially, with adjacent magnetic blocks having opposite polarities, and the distance between the magnetic poles of the magnet and the stir bar is 5-8 mm.

[0010] As a preferred embodiment of this novel sterile magnetic stirring tank, the outer wall of the tank is equipped with a controller, and the solenoid valve, drive motor, heating rod, pressure sensor and temperature sensor are all electrically connected to the controller.

[0011] The beneficial effects of this utility model are: 1. Magnetic coupling transmission avoids mechanical seal contamination. Combined with a dual aseptic filtration system and online steam sterilization function, it effectively ensures a sterile environment throughout the coating production process, making it suitable for the production of high-standard medical and food-grade coatings.

[0012] 2. An integrated pressure and temperature monitoring system enables coordinated operation of all components through a controller, ensuring uniform mixing of the coating under constant temperature conditions, significantly improving production stability and product quality. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is an overall structural diagram of a novel sterile magnetic stirring tank according to this utility model.

[0015] Figure 2 This is a front sectional view of a novel sterile magnetic stirring tank according to this utility model.

[0016] Figure 3 This is a right sectional view of a novel sterile magnetic stirring tank according to this utility model.

[0017] The markings in the diagram are: 1. Tank body; 2. Feed inlet; 3. Inoculation port; 4. Aseptic filter; 5. Discharge port; 6. Drive motor; 7. Ring magnet assembly; 8. Stirrer; 9. Steam sterilization interface; 10. Exhaust port; 11. Air filter; 12. Heating rod; 13. Pressure sensor; 14. Temperature sensor. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0019] Please see Figure 1-3 A novel sterile magnetic stirring tank includes a tank body 1, a discharge port 5 with an electromagnetic valve installed on the outer wall at the lower end of the tank body 1, a magnetic stirring assembly at the lower end of the tank body 1, and a sterile protection assembly at the top of the tank body 1. The aseptic protection component includes an inlet 2 and an inoculation port 3 with an aseptic filter 4 connected in series on the outer wall of the pipeline. The aseptic filter 4 contains a hydrophilic microporous PES filter membrane. The top of the tank 1 is provided with a steam sterilization interface 9 and an exhaust port 10 with an air filter 11 connected in series on the outer wall of the pipeline. The air filter 11 contains a hydrophobic microporous PTFE filter membrane.

[0020] In this embodiment: the drive motor 6 drives the stirrer 8 inside the tank through the ring magnet group 7 to achieve contactless transmission and stir the coating in the tank 1. Two heating rods 12, together with the temperature sensor 14, achieve precise temperature control. The pressure sensor 13 monitors the pressure inside the tank in real time. The risk of mechanical seal contamination is completely eliminated through magnetic coupling transmission. The sterile filter 4 and the air filter 11 ensure the sterility of incoming and outgoing materials and gases. The steam sterilization interface 9 supports online sterilization. Compared with traditional equipment, it can reduce the microbial contamination rate of bio-based coatings and avoid the mixing of metal particles. By integrating sterilization, stirring and temperature control functions, the quality stability and production efficiency of coating products are significantly improved.

[0021] As a technical optimization of this utility model, the magnetic stirring assembly includes a drive motor 6 installed at the bottom of the tank 1, an annular magnet group 7 fixedly connected to the output end of the drive motor 6, and a stir bar 8 coupled to the annular magnet group 7 rotatably connected to the bottom of the tank 1.

[0022] In this embodiment: the drive motor 6 is started, and the drive motor 6 drives the ring magnet group 7 to rotate. The rotating magnetic field generated by the ring magnet group 7 penetrates the bottom of the tank 1 and drives the stirrer 8 to rotate synchronously, realizing a completely sealed contactless transmission.

[0023] As a technical optimization of this utility model, two symmetrically distributed heating rods 12 are arranged inside the tank body 1.

[0024] In this embodiment, the heating rod 12, in conjunction with the stirring assembly, facilitates uniform heating of the material inside the tank 1, avoids local overheating or uneven temperature, and ensures that the coating or reactant maintains a stable temperature distribution during the stirring process.

[0025] As a technical optimization of this utility model, a pressure sensor 13 is provided at the top of the inner wall of the tank 1, and a temperature sensor 14 is provided in the middle of the inner wall of the tank 1.

[0026] In this embodiment: the pressure sensor 13 is located at the top of the tank 1 to monitor the air pressure changes in real time, ensure a sterile positive pressure environment and prevent the risk of overpressure; the temperature sensor 14 is installed in the middle of the inner wall to accurately detect the core temperature of the material and achieve precise temperature control in conjunction with the heating rod 12.

[0027] As a technical optimization of this utility model, the magnetic blocks of the ring magnet group 7 are arranged radially, the polarities of adjacent magnetic blocks are opposite, and the distance between the magnetic poles of the ring magnet group 7 and the stir bar 8 is 5-8mm.

[0028] In this embodiment, by using a radial arrangement of alternating polarity magnets with a magnetic pole spacing of 5-8mm, a uniform and strong magnetic field can be formed and efficient magnetic coupling can be achieved, ensuring that the stir bar 8 rotates stably and synchronously, while avoiding the risk of magnetic attenuation or decoupling.

[0029] As a technical optimization of this utility model, a controller is provided on the outer wall of the tank 1, and the solenoid valve, drive motor 6, heating rod 12, pressure sensor 13 and temperature sensor 14 are all electrically connected to the controller.

[0030] In this embodiment, the controller facilitates the normal operation of the solenoid valve, drive motor 6, and heating rod 12, and displays the detection signals of pressure sensor 13 and temperature sensor 14.

[0031] The working principle and usage process of this utility model are as follows: The drive motor 6 drives the stirrer 8 inside the tank through the ring magnet group 7 to achieve contactless transmission and stir the coating in the tank 1. Two heating rods 12, together with the temperature sensor 14, achieve precise temperature control. The pressure sensor 13 monitors the pressure inside the tank in real time. The risk of mechanical seal contamination is completely eliminated through magnetic coupling transmission. The sterile filter 4 and the air filter 11 ensure the sterility of incoming and outgoing materials and gases. The steam sterilization interface 9 supports online sterilization. Compared with traditional equipment, it can reduce the microbial contamination rate of bio-based coatings and avoid the mixing of metal particles. By integrating sterilization, stirring and temperature control functions, the quality stability and production efficiency of coating products are significantly improved.

[0032] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A novel sterile magnetic stirring tank, comprising a tank body (1), wherein the lower end of the tank body (1) is provided with a discharge port (5) on the outer wall of which an electromagnetic valve is installed, characterized in that: A magnetic stirring assembly is provided at the lower end of the tank (1), and a sterile protection assembly is provided at the top of the tank (1). The aseptic protection component includes an inlet (2) and an inoculation port (3) with an aseptic filter (4) connected in series on the outer wall of the pipe. The aseptic filter (4) contains a hydrophilic microporous PES filter membrane. The top of the tank (1) is provided with a steam sterilization interface (9) and an exhaust port (10) with an air filter (11) connected in series on the outer wall of the pipe. The air filter (11) contains a hydrophobic microporous PTFE filter membrane.

2. The novel sterile magnetic stirring tank according to claim 1, characterized in that: The magnetic stirring assembly includes a drive motor (6) installed at the bottom of the tank (1), and a ring magnet assembly (7) is fixedly connected to the output end of the drive motor (6). A stirrer (8) coupled to the ring magnet assembly (7) is rotatably connected to the bottom of the tank (1).

3. The novel sterile magnetic stirring tank according to claim 2, characterized in that: The tank (1) is equipped with two symmetrically distributed heating rods (12).

4. A novel sterile magnetic stirring tank according to claim 3, characterized in that: A pressure sensor (13) is provided at the top of the inner wall of the tank (1), and a temperature sensor (14) is provided in the middle of the inner wall of the tank (1).

5. A novel sterile magnetic stirring tank according to claim 2, characterized in that: The magnetic blocks of the ring magnet group (7) are arranged radially, with opposite polarities between adjacent magnetic blocks, and the distance between the magnetic poles of the ring magnet group (7) and the stir bar (8) is 5-8 mm.

6. A novel sterile magnetic stirring tank according to claim 4, characterized in that: The outer wall of the tank (1) is equipped with a controller, and the solenoid valve, drive motor (6), heating rod (12), pressure sensor (13) and temperature sensor (14) are all electrically connected to the controller.

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