Mixing equipment for producing powder culture medium

Abstract

The invention discloses mixing equipment for powder culture medium production. The mixing equipment comprises a mixing tank, a mixing part arranged in an inner cavity of the mixing tank and an auxiliary mixing assembly arranged at the top of the inner cavity of the mixing tank. Wherein the mixing part comprises a hollow rotating rod arranged at the top of an inner cavity of the mixing tank, a plurality of groups of exhaust holes formed in the surface of the hollow rotating rod, a circular base arranged at the bottom of the hollow rotating rod, a plurality of groups of first stirring blades arranged on the surface of the circular base, an air blowing assembly arranged at the top of the mixing tank, a shielding assembly arranged on the surface of the hollow rotating rod and the like. The top end of the hollow rotating rod extends to the top of the mixing tank; the exhaust hole is communicated with an inner cavity of the hollow rotating rod. The mixing equipment for powder culture medium production is easy to overhaul and maintain, can reduce or avoid the risk of cross contamination between products in different batches, and well meets the strict requirements of powder culture medium production on cleanliness and hygienic standards.

Description

Technical Field

[0001] This invention relates to the field of powder culture medium production technology, and in particular to a high-efficiency mixing device for powder culture medium production. Background Technology

[0002] Powdered culture medium is a powdered preparation made by mixing and drying the nutrients required for microbial culture in a certain proportion. When used, it can be prepared into liquid or solid culture medium simply by adding water to dissolve it. Powdered culture medium is made by mixing and drying carbon source, nitrogen source, inorganic salt, growth factor and other components in a certain proportion, which is convenient for storage, transportation and standardized use.

[0003] In existing production processes, the mixing and particle size control of powder culture medium are usually carried out in a closed-loop circulation system. This system mainly includes equipment such as mixing tanks, storage tanks and needle mills. The material is transported by airflow and circulates between these devices until the set particle size distribution is achieved and the components are uniformly mixed.

[0004] However, the mixing tanks in current powder culture medium production equipment still have the following shortcomings in the mixing of powder materials. Current mixing equipment usually relies on a single stirring structure to mix powder materials. The shear force and convection effect are limited. As a result, for various powder materials with significant differences in density, particle size and flowability, the single mixing force is difficult to effectively overcome the phenomena of stratification, segregation and agglomeration. It is very easy to cause mixing dead zones, resulting in uneven distribution of trace components and seriously affecting the performance and batch stability of the culture medium. Summary of the Invention

[0005] The main objective of this invention is to provide a mixing device for the production of powder culture medium, so as to achieve multi-dimensional and three-dimensional efficient mixing, significantly improve the mixing uniformity, and thus overcome the shortcomings of the prior art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution.

[0007] According to one aspect of the present invention, a mixing apparatus for producing powder culture medium is provided, comprising a mixing tank, and further comprising: A mixing component is disposed within the inner cavity of the mixing tank and includes a hollow rotating rod disposed at the top of the inner cavity of the mixing tank, multiple sets of exhaust holes disposed on the surface of the hollow rotating rod, a circular base disposed at the bottom of the hollow rotating rod, three sets of first stirring blades disposed on the surface of the circular base, an air blowing assembly disposed at the top of the mixing tank, and a shielding assembly disposed on the surface of the hollow rotating rod, wherein the top end of the hollow rotating rod extends to the top of the mixing tank, and the exhaust holes and the inner cavity of the hollow rotating rod are interconnected. An auxiliary mixing component is disposed at the top of the inner cavity of the mixing tank.

[0008] In one embodiment, a feed inlet is provided at the top of one side of the mixing tank, and the feed inlet is connected to the inner cavity of the mixing tank, and a discharge outlet is provided at the bottom of the mixing tank, and the discharge outlet is connected to the inner cavity of the mixing tank.

[0009] In one embodiment, the air blowing assembly includes an installation chamber disposed at one end of the top of the mixing tank, with one end of the installation chamber being open; a connecting pipe disposed at the end of the installation chamber away from the open end; a slip ring disposed at the bottom end of the connecting pipe and extending into the inner cavity of the connecting pipe; multiple sets of rubber O-rings disposed on the inner sidewall of the slip ring; the top of the hollow rotating rod extending into the inner cavity of the connecting pipe through the slip ring; and an inverted conical air inlet disposed at the top of the hollow rotating rod and located within the inner cavity of the connecting pipe.

[0010] In one embodiment, the air blowing assembly further includes a fan disposed in the inner cavity of the mounting chamber and near one end of the connecting pipe, and a filter screen plate disposed in the inner cavity of the mounting chamber and away from the fan, with the top end of the filter screen plate extending to the outside of the mounting chamber, and a fixing bolt disposed at the top of one end of the mounting chamber, with one end of the fixing bolt extending into the inner cavity of the filter screen plate.

[0011] In one embodiment, the shielding assembly includes an annular groove disposed at the top of the inner cavity of the mixing tank, four sets of sliding blocks disposed inside the annular groove, an annular disk disposed at the bottom of the sliding blocks, a shielding sleeve disposed on the surface of the hollow rotating rod, three sets of communicating slots disposed on the surface of the shielding sleeve, and multiple sets of second stirring blades disposed on the surface of the shielding sleeve.

[0012] In one embodiment, the shielding component further includes three sets of arc-shaped cavities disposed inside the annular disk and three sets of arc-shaped connecting ports disposed at the bottom of the annular disk, wherein the arc-shaped connecting ports and the inner cavities of the arc-shaped cavities are interconnected.

[0013] In one embodiment, an arc-shaped spring is connected to one end of the inner cavity of the arc-shaped cavity, a limiting slider is disposed at the end of the arc-shaped spring away from the arc-shaped cavity, and an L-shaped connecting rod is disposed at the bottom of the annular disk. One end of the L-shaped connecting rod extends to the outside of the annular disk through an arc-shaped connecting port and is connected to the surface of the shielding sleeve. An iron collar is disposed on the surface of the L-shaped connecting rod, and three sets of arc-shaped magnetic blocks are disposed at the bottom of the annular disk. The arc-shaped magnetic blocks are arranged with an arc-shaped opening at the end near the iron collar.

[0014] In one embodiment, a rotating gear is fixedly sleeved on the surface of the annular disk, a motor is disposed at one end of the top of the mixing tank, and the output end of the motor extends into the inner cavity of the mixing tank. A main rotating gear is disposed at the output end of the motor and is located in the inner cavity of the mixing tank. The main rotating gear and the rotating gear mesh with each other.

[0015] In one embodiment, the auxiliary mixing assembly includes multiple sets of rotating rods disposed at the top edge of the inner cavity of the mixing tank, multiple sets of third stirring blades disposed on the surface of the rotating rods, and a synchronizing gear disposed on the top of the surface of the rotating rods, wherein the synchronizing gear and the rotating gear mesh with each other.

[0016] In one embodiment, the auxiliary mixing assembly further includes a circular shielding top plate disposed at the top of the inner cavity of the mixing tank, a plurality of the rotating rods passing through the circular shielding top plate, a shielding sleeve passing through the circular shielding top plate, and the rotating gear and the plurality of the synchronizing gears located between the mixing tank and the circular shielding top plate.

[0017] According to another aspect of the present invention, a system for producing powder culture medium is provided, comprising a storage tank, a needle mill, and a mixing device for producing powder culture medium.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects: (1) By setting multiple sets of exhaust holes on the hollow rotating rod, the present invention sprays air from the inside of the hollow rotating rod to the surrounding area during the mixing process. The air can directly impact and break up powder clumps that are difficult to reach by the stirring blades. It is particularly effective for light and easily adsorbed trace components. At the same time, the sprayed air makes the powder material in the center of the mixing tank in a state of suspension and violent movement, which greatly reduces the mixing dead zone and enhances the overall fluidity of the material, creating ideal conditions for efficient and uniform mixing.

[0019] (2) By providing a shielding sleeve on the surface of the hollow rotating rod, the shielding sleeve can automatically seal multiple sets of exhaust holes on the hollow rotating rod when mixing stops and the fan is turned off. This effectively prevents powder material from flowing back into the hollow rotating rod under negative pressure or gravity when the machine stops, completely avoiding equipment failure and maintenance problems caused by exhaust hole blockage. Furthermore, since the exhaust holes are sealed, residual material cannot enter the internal pipes of the hollow rotating rod. When changing product batches, the risk of cross-contamination is greatly reduced, meeting the stringent requirements of cleanliness and hygiene standards for powder culture medium production.

[0020] (3) The present invention uses rotating gears and multiple sets of synchronous gears to mesh with each other, so that the rotation of the hollow rotating rod can synchronously drive multiple sets of rotating rods arranged on the edge of the mixing tank to operate synchronously. The hollow rotating rod is responsible for the main convection mixing and driving airflow, while the edge rotating rods perform strong scraping and shearing mixing of the material near the wall of the mixing tank. This effectively solves the problem of material retention and uneven mixing in the mixing tank. Moreover, the hollow rotating rod and the multiple sets of edge rotating rods work together to form a strong convection, shearing and diffusion composite flow field in the mixing tank, realizing full-area, three-dimensional mixing from the center to the edge. It is especially suitable for complex powder systems with large differences in density and particle size, ensuring that the distribution of each component, especially trace components, is highly uniform. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a mixing device for producing powder culture medium according to one embodiment of the present invention; Figure 2 This is a first cross-sectional perspective view of a mixing device for producing powder culture medium according to an embodiment of the present invention; Figure 3 This is a second cross-sectional perspective view of a mixing device for producing powder culture medium according to an embodiment of the present invention; Figure 4 This is a bottom-view perspective view of a mixing tank according to one embodiment of the present invention; Figure 5 This is a bottom-view perspective view of a rotating gear and a synchronizing gear in one embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of a hybrid component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional unfolded structure of a hybrid component according to an embodiment of the present invention; Figure 8 This is a top-view cross-sectional three-dimensional structural diagram of an annular disk according to an embodiment of the present invention; Figure 9 This is a bottom-view three-dimensional structural diagram of a ring disk according to an embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of an installation compartment according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Mixing tank; 11. Inlet; 12. Outlet; 2. Mixing component; 21. Hollow rotating rod; 22. Exhaust port; 23. Air blowing assembly; 231. Mounting chamber; 232. Connecting pipe; 233. Fan; 234. Filter screen; 235. Inverted conical air inlet; 236. Fixing bolt; 237. Slip ring; 238. Rubber O-ring; 24. Circular base; 25. First stirring blade; 26. Rotating gear; 27. Motor; 28. Main rotating gear; 29. ​​Shielding assembly; 291. Annular disc; 292. Annular groove; 293. Sliding block; 294. Arc-shaped cavity; 295. Arc-shaped spring; 296. Arc-shaped connection port; 297. Limiting slider; 298. L-shaped connecting rod; 299. Shielding sleeve; 290. Connecting slot; 2901. Second stirring blade; 2902. Arc-shaped magnetic block; 2903. Iron collar; 3. Auxiliary mixing component; 31. Rotating rod; 32. Third stirring blade; 33. Synchronizing gear; 34. Circular shielding top plate. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Example 1 Reference Figures 1-10 The first embodiment of the present invention provides a high-efficiency mixing device for the production of powder culture medium. This high-efficiency mixing device for the production of powder culture medium includes a mixing tank 1, a mixing component 2 disposed in the inner cavity of the mixing tank 1, and an auxiliary mixing component 3 disposed at the top of the inner cavity of the mixing tank 1. The mixing component 2 includes a hollow rotating rod 21 rotatably connected to the top of the inner cavity of the mixing tank 1, with the top end of the hollow rotating rod 21 extending to the top of the mixing tank 1; multiple sets of exhaust holes 22 opened on the surface of the hollow rotating rod 21, with the exhaust holes 22 communicating with the inner cavity of the hollow rotating rod 21; a circular base 24 fixedly installed at the bottom of the hollow rotating rod 21; three sets of first stirring blades 25 installed on the surface of the circular base 24 to facilitate stirring of the material in the bottom space of the inner cavity of the mixing tank 1; an air blowing assembly 23 set at the top of the mixing tank 1; and a shielding assembly 29 set on the surface of the hollow rotating rod 21.

[0025] A feed inlet 11 is provided on the top of one side of the surface of the mixing tank 1, and the feed inlet 11 is connected to the inner cavity of the mixing tank 1. The feed inlet 11 is connected to the needle mill, which facilitates the transfer of material from the needle mill into the mixing tank 1. A discharge outlet 12 is provided at the bottom of the mixing tank 1, and the discharge outlet 12 is connected to the inner cavity of the mixing tank 1. The discharge outlet 12 is connected to the storage tank, which facilitates the transfer of material from the mixing tank 1 to the storage tank.

[0026] The air blowing assembly 23 includes an installation chamber 231 fixedly installed at one end of the top of the mixing tank 1, with one end of the installation chamber 231 being open; a connecting pipe 232 connected to the end of the installation chamber 231 away from the open end; a slip ring 237 disposed at the bottom end of the connecting pipe 232 and extending into the inner cavity of the connecting pipe 232; multiple sets of rubber O-rings 238 disposed on the inner sidewall of the slip ring 237; and the top of the hollow rotating rod 21 extending into the inner cavity of the connecting pipe 232 through the slip ring 237. The hollow rotating rod 21 and the connecting pipe 232 can be connected by the slip ring 237 and the rubber O-rings 238 to ensure airtightness and prevent backflow of powder in the mixing tank 1. An inverted conical air inlet 235 is installed at the top of the hollow rotating rod 21 and is located on the connecting pipe 232. The inner cavity 22 facilitates the entry of gas into the hollow rotating rod 21. The air blowing assembly 23 also includes a fan 233 fixedly installed in the inner cavity of the installation chamber 231 and near the end of the connecting pipe 232, and a filter plate 234 slidably connected in the inner cavity of the installation chamber 231 and away from the fan 233. The top of the filter plate 234 extends to the outside of the installation chamber 231. The air entering the inner cavity of the mixing tank 1 can be filtered through the filter plate 234. A fixing bolt 236 is set at the top of one end of the installation chamber 231, and one end of the fixing bolt 236 extends into the inner cavity of the filter plate 234. By setting the fixing bolt 236, the filter plate 234 can be locked and fixed to the installation chamber 231 when it reaches or moves away from the filtration position, thereby ensuring the filtration effect.

[0027] The shielding assembly 29 includes an annular groove 292 embedded in the top of the inner cavity of the mixing tank 1, four sets of sliding blocks 293 slidably connected to the inner side of the annular groove 292, an annular disk 291 fixedly installed at the bottom of the sliding blocks 293, a shielding sleeve 299 sleeved on the surface of the hollow rotating rod 21, three sets of connecting slots 290 opened on the surface of the shielding sleeve 299, which allow air to be ejected from the exhaust port 22 when the connecting slots 290 and the exhaust port 22 coincide, and multiple sets of second stirring blades 2901 provided on the surface of the shielding sleeve 299. The shielding assembly 29 also includes three sets of arc-shaped cavities 294 provided inside the annular disk 291, and three sets of arc-shaped connecting ports 296 provided at the bottom of the annular disk 291, and the arc-shaped connecting ports 296 and the inner cavities of the arc-shaped cavities 294 are interconnected.

[0028] An arc-shaped spring 295 is connected to one end of the inner cavity of the arc-shaped cavity 294. A limiting slider 297 is provided at the end of the arc-shaped spring 295 away from the arc-shaped cavity 294. An L-shaped connecting rod 298 is provided at the bottom of the annular disk 291. One end of the L-shaped connecting rod 298 extends to the outside of the annular disk 291 through an arc-shaped connecting port 296 and is connected to the surface of the shielding sleeve 299. An iron collar 2903 is provided on the surface of the L-shaped connecting rod 298. Three sets of arc-shaped magnetic blocks 2902 are provided at the bottom of the annular disk 291. The arc-shaped magnetic blocks 2902 are provided with an arc-shaped opening at the end near the iron collar 2903.

[0029] A rotating gear 26 is fixedly mounted on the surface of the annular disk 291. A motor 27 is fixedly installed at one end of the top of the mixing tank 1, and the output end of the motor 27 extends into the inner cavity of the mixing tank 1. A main rotating gear 28 is installed at the output end of the motor 27 and is located in the inner cavity of the mixing tank 1. The main rotating gear 28 and the rotating gear 26 mesh with each other, which facilitates the rotation of the annular disk 291 by the motor 27.

[0030] During operation, when the material in the needle mill enters the inner cavity of the mixing tank 1 through the feed inlet 11, the starting motor 27 drives the main rotating gear 28 to rotate. The meshing of the main rotating gear 28 and the rotating gear 26 drives the rotating gear 26 to rotate, which in turn causes the annular disk 291 to rotate. This rotational inertia causes the annular disk 291 to move, compressing the arc springs 295 within the three sets of arc-shaped cavities 294 inside the annular disk 291. At this time, the iron collar 2903 on the L-shaped connecting rod 298 and the arc-shaped magnetic block 2902 move away from each other, simultaneously causing... The L-shaped connecting rod 298 on the limiting slider 297 drives the shielding sleeve 299 to rotate slightly on the surface of the hollow rotating rod 21, so that the three sets of connecting slots 290 on the surface of the shielding sleeve 299 and the multiple sets of exhaust holes 22 on the surface of the hollow rotating rod 21 coincide. When the L-shaped connecting rod 298 moves from one end to the other end inside the arc-shaped connecting port 296, it can drive the hollow rotating rod 21 to rotate, and then the second stirring blade 2901 on the surface of the shielding sleeve 299 and the first stirring blade 25 on the bottom circular base 24 of the hollow rotating rod 21 rotate to stir and mix the material. At this time, the blower 233 can be started to filter the air outside the installation chamber 231 through the filter screen 234, and then transfer it to the inner cavity of the hollow rotating rod 21 through the connecting pipe 232. Then it is sprayed out through the multiple exhaust holes 22 on the surface of the hollow rotating rod 21 to accelerate the agitation of the material. When the mixing operation in the mixing tank 1 is stopped, the motor 27 is turned off, causing the hollow rotating rod 21 and the blocking sleeve 299 to stop rotating. At this time, the rebound force of the three sets of arc springs 295 in the annular disk 291 can drive the limit slider 297 to move and reset. At the same time, the magnetic attraction of the arc magnetic block 2902 is used to attract the iron collar 2903 to assist in resetting the L-shaped connecting rod 298. The L-shaped connecting rod 298 drives the blocking sleeve 299 to move, and then the connecting slot 290 on the blocking sleeve 299 and the exhaust hole 22 on the hollow rotating rod 21 are misaligned, and then the exhaust hole 22 can be blocked.

[0031] Example 2 Reference Figures 1-9 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the auxiliary mixing component 3 includes multiple sets of rotating rods 31 rotatably connected to the top edge of the inner cavity of the mixing tank 1, multiple sets of third stirring blades 32 disposed on the surface of the rotating rods 31, and a synchronous gear 33 disposed on the top of the surface of the rotating rods 31, wherein the synchronous gear 33 and the rotating gear 26 mesh with each other.

[0032] The auxiliary mixing assembly 3 also includes a circular shielding top plate 34 installed at the top of the inner cavity of the mixing tank 1. Multiple sets of rotating rods 31 pass through the circular shielding top plate 34. The circular shielding top plate 34 can seal the main rotating gear 28 and rotating gear 26 in the upper part of the inner cavity of the mixing tank 1, preventing the lubricating grease of the main rotating gear 28 and rotating gear 26 from contaminating the powder in the mixing tank 1, or preventing the powder in the mixing tank 1 from entering the gear gap. The shielding sleeve 299 passes through the circular shielding top plate 34, and the rotating gear 26 and multiple sets of synchronous gears 33 are located between the mixing tank 1 and the circular shielding top plate 34. The separation provided by the circular shielding top plate 34 ensures that when the material is mixed in the mixing tank 1, the material particles do not interfere with the synchronous gears 33 and rotating gears 26.

[0033] During use, when the starting motor 27 drives the main rotating gear 28 to rotate, and then the rotating gear 26 selects to rotate the annular disk 291, multiple sets of synchronous gears 33 mesh with the rotating gear 26, thereby synchronously driving the multiple sets of synchronous gears 33 to rotate synchronously, which in turn causes the rotating rod 31 on the synchronous gear 33 to rotate, and then drives the third stirring blade 32 on the surface of the rotating rod 31 to rotate, thereby rotating and stirring from the edge of the inner cavity of the mixing tank 1 to achieve the mixing operation of the material.

[0034] The remaining structure is the same as that in Example 1.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mixing device for producing powder culture medium, comprising a mixing tank (1), characterized in that, Also includes: A mixing component (2) is disposed in the inner cavity of the mixing tank (1) and includes a hollow rotating rod (21) disposed at the top of the inner cavity of the mixing tank (1), multiple sets of exhaust holes (22) disposed on the surface of the hollow rotating rod (21), a circular base (24) disposed at the bottom of the hollow rotating rod (21), three sets of first stirring blades (25) disposed on the surface of the circular base (24), an air blowing assembly (23) disposed at the top of the mixing tank (1), and a shielding assembly (29) disposed on the surface of the hollow rotating rod (21), wherein the top end of the hollow rotating rod (21) extends to the top of the mixing tank (1), and the exhaust holes (22) and the inner cavity of the hollow rotating rod (21) are interconnected; An auxiliary mixing component (3) is disposed at the top of the inner cavity of the mixing tank (1).

2. The high-efficiency mixing equipment for producing powder culture medium according to claim 1, characterized in that: The mixing tank (1) has a feed inlet (11) on the top of one side of its surface, and the feed inlet (11) is connected to the inner cavity of the mixing tank (1). The mixing tank (1) also has a discharge port (12) at the bottom of its surface, and the discharge port (12) is connected to the inner cavity of the mixing tank (1).

3. The high-efficiency mixing equipment for producing powder culture medium according to claim 2, characterized in that: The air blowing assembly (23) includes an installation chamber (231) disposed at one end of the top of the mixing tank (1), and one end of the installation chamber (231) is open. A connecting pipe (232) is disposed at the end of the installation chamber (231) away from the open end. A slip ring (237) is disposed at the bottom end of the connecting pipe (232) and the slip ring (237) extends into the inner cavity of the connecting pipe (232). Multiple sets of rubber O-rings (238) are disposed on the inner side wall of the slip ring (237). The top of the hollow rotating rod (21) extends into the inner cavity of the connecting pipe (232) through the slip ring (237). An inverted conical air inlet (235) is disposed at the top of the hollow rotating rod (21) and the inverted conical air inlet (235) is located in the inner cavity of the connecting pipe (232).

4. The high-efficiency mixing equipment for producing powder culture medium according to claim 3, characterized in that: The air blowing assembly (23) also includes a fan (233) disposed in the inner cavity of the mounting chamber (231) and near one end of the connecting pipe (232), and a filter plate (234) disposed in the inner cavity of the mounting chamber (231) and away from the fan (233), with the top end of the filter plate (234) extending to the outside of the mounting chamber (231), and a fixing bolt (236) disposed at the top of one end of the mounting chamber (231), with one end of the fixing bolt (236) extending into the inner cavity of the filter plate (234).

5. The high-efficiency mixing equipment for producing powder culture medium according to claim 4, characterized in that: The shielding assembly (29) includes an annular groove (292) disposed at the top of the inner cavity of the mixing tank (1), four sets of sliding blocks (293) disposed inside the annular groove (292), an annular disk (291) disposed at the bottom of the sliding blocks (293), a shielding sleeve (299) disposed on the surface of the hollow rotating rod (21), three sets of connecting slots (290) disposed on the surface of the shielding sleeve (299), and multiple sets of second stirring blades (2901) disposed on the surface of the shielding sleeve (299).

6. The high-efficiency mixing equipment for producing powder culture medium according to claim 5, characterized in that: The shielding component (29) also includes three sets of arc-shaped cavities (294) disposed inside the annular disk (291) and three sets of arc-shaped connecting ports (296) disposed at the bottom of the annular disk (291), and the arc-shaped connecting ports (296) and the inner cavities of the arc-shaped cavities (294) are interconnected.

7. The high-efficiency mixing equipment for producing powder culture medium according to claim 6, characterized in that: One end of the inner cavity of the arc-shaped cavity (294) is connected to an arc-shaped spring (295), a limiting slider (297) is provided at the end of the arc-shaped spring (295) away from the arc-shaped cavity (294), and an L-shaped connecting rod (298) is provided at the bottom of the annular disk (291). One end of the L-shaped connecting rod (298) extends to the outside of the annular disk (291) through an arc-shaped connecting port (296) and is connected to the surface of the shielding sleeve (299). An iron collar (2903) is provided on the surface of the L-shaped connecting rod (298), and three sets of arc-shaped magnetic blocks (2902) are provided at the bottom of the annular disk (291). The arc-shaped magnetic blocks (2902) are provided with an arc-shaped opening at the end near the iron collar (2903).

8. The high-efficiency mixing equipment for producing powder culture medium according to claim 7, characterized in that: A rotating gear (26) is fixedly sleeved on the surface of the annular disk (291). A motor (27) is set at one end of the top of the mixing tank (1), and the output end of the motor (27) extends into the inner cavity of the mixing tank (1). A main rotating gear (28) is set at the output end of the motor (27), and the main rotating gear (28) is located in the inner cavity of the mixing tank (1). The main rotating gear (28) and the rotating gear (26) mesh with each other.

9. The high-efficiency mixing equipment for producing powder culture medium according to claim 8, characterized in that: The auxiliary mixing component (3) includes multiple sets of rotating rods (31) disposed at the top edge of the inner cavity of the mixing tank (1), multiple sets of third stirring blades (32) disposed on the surface of the rotating rods (31), and a synchronous gear (33) disposed on the top of the surface of the rotating rods (31), wherein the synchronous gear (33) and the rotating gear (26) mesh with each other.

10. The high-efficiency mixing equipment for producing powder culture medium according to claim 9, characterized in that: The auxiliary mixing assembly (3) also includes a circular shielding top plate (34) disposed at the top of the inner cavity of the mixing tank (1), multiple sets of rotating rods (31) passing through the circular shielding top plate (34), the shielding sleeve (299) passing through the circular shielding top plate (34), and the rotating gear (26) and multiple sets of synchronous gears (33) located between the mixing tank (1) and the circular shielding top plate (34).

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