A high-efficiency lactic acid bacteria blending tank

Abstract

This invention discloses a high-efficiency lactic acid bacteria blending tank, relating to the technical field of lactic acid bacteria fermentation. It includes a tank body with a feed pipe on the tank cover and an inoculation assembly on the feed pipe. The inoculation assembly includes an external ring pipe, an internal ring block, a feed trough, a sterilization pipe, an inoculation pipe, and a drive assembly. The drive assembly is connected to the internal ring block and drives the internal ring block to rotate within the external ring pipe. Several inoculation pipes are arranged in a ring on the outer wall of the external ring pipe, and sterilization pipes are arranged between adjacent inoculation pipes. This ensures that each strain change is accompanied by an independent online sterilization step. Regardless of the number of strains to be introduced, the inoculation assembly can complete the sterilization-inoculation cycle sequentially through the continuous rotation of the internal ring block, ensuring that the entire inoculation flow channel remains sterile when introducing a new strain, avoiding contamination of the new strain by residues from the previous strain, and achieving truly sterile multi-strain sequential inoculation.

Description

Technical Field

[0001] This invention relates to the field of lactic acid bacteria fermentation technology, and in particular to a highly efficient lactic acid bacteria blending tank. Background Technology

[0002] Lactic acid bacteria fermented products have wide applications in the food, pharmaceutical, and feed industries. The stability and aseptic nature of the fermentation process are key factors determining product quality. In the lactic acid bacteria fermentation production process, inoculation is one of the core steps. Aseptic assurance during inoculation, precise control of the inoculation amount, and the seamless integration of multiple strains directly affect fermentation efficiency, product quality, and production stability. In compound lactic acid bacteria fermentation (such as kefir, probiotic beverages, sauerkraut, or pickled vegetable fermentation) and multi-stage fermentation processes, different strains are often introduced in a specific order. For example, rapidly acid-producing lactococci are introduced first to create an acidic environment for subsequent lactobacilli, or aroma-producing and enzyme-producing bacteria are introduced at different fermentation stages.

[0003] In traditional processes, inoculation with multiple microbial strains usually requires setting up multiple independent inoculation ports or repeatedly opening the same inoculation port. This can easily lead to residual contamination of the previous microbial strain with the next, resulting in an imbalance in the microbial ratio or contamination by other microorganisms.

[0004] In existing technologies, the sterilization process before inoculation typically requires rinsing the inoculation port through a separate steam pipe. After sterilization, the steam is turned off before switching to the inoculation operation. This process involves numerous steps, is time-consuming, and carries the risk of recontamination during the switching between sterilization and inoculation. This is especially problematic in processes requiring multiple inoculations, where the above steps must be repeated before each inoculation, resulting in low production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a highly efficient lactic acid bacteria blending tank, which, while ensuring a sterile environment, enables rapid and clean switching between different bacterial strains, avoids cross-contamination, ensures the accuracy of the fermentation microbial ratio, and simplifies the equipment structure and improves the level of automation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency lactic acid bacteria mixing tank, comprising a tank body, an inlet pipe provided on the top cover of the tank body, and an inoculation component provided on the inlet pipe; The inoculation assembly includes an external ring tube, an internal ring block, a feed trough, a sterilization pipe, an inoculation pipe, and a drive assembly. The drive assembly is connected to the internal ring block and is used to drive the internal ring block to rotate inside the external ring tube. The feed trough is opened inside the internal ring block. Several inoculation pipes are arranged in a ring on the outer wall of the external ring tube. A sterilization pipe is arranged between adjacent inoculation pipes. The internal ring block has a feed hole that communicates with the feed trough. When the internal ring block rotates, the feed hole is intermittently aligned and communicates with the sterilization pipe and the inoculation pipe. The built-in ring block can also move along the axis of the external ring tube. When the built-in ring block moves upward, a sealed cavity is formed at the lower end of the external ring tube, and the sterilization pipe and the inoculation pipe are interconnected with the cavity.

[0007] Furthermore, the outer ring tube has an annular groove for accommodating the inner ring block, the outer wall of the inner ring block is sealed and fitted with the annular groove, and the upper end of the inner ring block penetrates the annular groove and is positioned above the outer ring tube.

[0008] Furthermore, the upper end of the built-in ring block is connected to a sealing cover via a bearing, and the bottom end of the sealing cover is provided with a scraper strip that fits against the inner wall of the feed trough.

[0009] Furthermore, the drive assembly includes a first drive gear ring, a second drive gear ring, a first ratchet component, a second ratchet component, and a drive motor. The drive motor is fixed to the tank cover by a bracket, and the first drive gear ring and the second drive gear ring are sleeved side by side on the output rod of the drive motor.

[0010] Furthermore, the first ratchet component is sleeved on the outer wall of the built-in ring block, and the second ratchet component is sleeved on the outer wall of the closed cover. A toothed ring a that meshes with the first drive toothed ring is sleeved on the outer wall of the first ratchet component, and a toothed ring b that meshes with the second drive toothed ring is sleeved on the outer wall of the second ratchet component.

[0011] Furthermore, the wiper blade is equipped with a water suction pipe inside, one end of which is connected to a suction system, and a solenoid valve is installed on the water suction pipe.

[0012] Furthermore, one end of the inoculation pipe is connected to the inoculation liquid via a connector, and the other end of the sterilization pipe is connected to high-temperature steam.

[0013] Furthermore, the lower ring plate is connected to the built-in ring block by a bearing. The lower ring plate has a discharge hole. The bottom of the feed trough has a discharge hole that is intermittently connected to the discharge hole. The bottom of the discharge hole is connected to the tank body through an external ring pipe via a telescopic tube.

[0014] Furthermore, a stirrer is installed inside the tank, with the upper end of the stirrer connected to the output end of the stirring motor, and the stirring motor is fixed to the tank cover by a support plate.

[0015] Furthermore, a third ratchet component is sleeved on the output end of the stirring motor, and the outer wall of the third ratchet component is connected to the linkage component via a belt, and the linkage component is connected to the built-in ring block.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention enables each strain change to be accompanied by an independent online sterilization step. No matter how many strains need to be introduced, the inoculation component can complete the repeated cycle of sterilization and inoculation through the continuous rotation of the built-in ring block. This ensures that the entire inoculation channel remains sterile when introducing the next strain, avoiding contamination of the next strain by the residue of the previous strain, and realizing true aseptic sequential inoculation of multiple strains.

[0017] 2. This invention achieves multi-point distributed inoculation by arranging several inoculation pipes in a ring on the outer wall of the external ring pipe. When the internal ring block rotates to the point where the feed hole aligns and communicates with the inoculation pipes, the seed liquid is diverted through the feed trough to the multiple inoculation pipes arranged in a ring, and sprayed evenly into the culture medium in the tank in a ring shape. It is not only suitable for fermentation of a single strain, but also perfectly capable of handling complex fermentation processes with multiple strains, multiple stages, and high precision. Under the premise of ensuring a sterile environment, it achieves rapid and clean switching between different strains, avoids cross-contamination, ensures the accuracy of the fermentation population ratio, simplifies the equipment structure, and improves the level of automation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a half-sectional view of the tank structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the inoculation component and the tank of the present invention; Figure 4 This is a schematic diagram of the inoculation component structure of the present invention; Figure 5 This is a partial structural diagram of the inoculation component of the present invention; Figure 6 This is a partial cross-sectional view of the inoculation component of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A; Figure 8 This is a half-sectional view of the installation of the external ring tube and the internal ring block of the present invention; Figure 9 This is a half-sectional bottom view of the installation of the external ring tube and the internal ring block of the present invention; Figure 10 This is a schematic diagram of the drive assembly and linkage of the present invention.

[0019] In the picture: 1. Tank body; 11. Feed pipe; 2. Inoculation assembly; 21. External ring tube; 211. Annular groove; 22. Internal ring block; 221. Feed port; 222. Sealing cap; 223. Lower ring plate; 2231. Discharge port; 23. Feed trough; 231. Scraper; 2311. Suction pipe; 232. Discharge port; 24. Sterilization pipe; 25. Inoculation pipe; 26. Drive assembly; 261. First drive gear ring; 262. Second drive gear ring; 263. First ratchet component; 2631. Gear ring a; 264. Second ratchet component; 2641. Gear ring b; 265. Drive motor; 3. Agitator; 31. Third ratchet component; 4. Linkage component; 41. Moving plate; 42. Connecting plate; 43. Linkage screw. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Reference Figure 1 - Figure 10 A highly efficient lactic acid bacteria mixing tank is provided, including a tank body 1, a feed pipe 11 is provided on the top cover of the tank body 1, and an inoculation component 2 is provided on the feed pipe 11; The inoculation assembly 2 includes an external ring tube 21, an internal ring block 22, a feed trough 23, a sterilization pipe 24, an inoculation pipe 25, and a drive assembly 26. The drive assembly 26 is connected to the internal ring block 22 and is used to drive the internal ring block 22 to rotate inside the external ring tube 21. The feed trough 23 is opened inside the internal ring block 22. Several inoculation pipes 25 are arranged in a ring on the outer wall of the external ring tube 21. A sterilization pipe 24 is arranged between adjacent inoculation pipes 25. A feed hole 221 is opened on the internal ring block 22 and communicates with the feed trough 23. When the internal ring block 22 rotates, the feed hole 221 is intermittently aligned and communicates with the sterilization pipe 24 and the inoculation pipe 25. The built-in ring block 22 can also move along the axis of the external ring tube 21. When the built-in ring block 22 moves upward, a sealed cavity is formed at the lower end of the external ring tube 21. The sterilization pipe 24 and the inoculation pipe 25 are both connected to the cavity.

[0022] The inoculation assembly 2 uses the drive assembly 26 to drive the built-in ring block 22 to rotate within the external ring pipe 21, so that the feed port 221 is intermittently aligned and interconnected with the sterilization pipe 24 and the inoculation pipe 25. Before inoculation, by rotating the built-in ring block 22, the feed port 221 is first connected to the sterilization pipe 24. At this time, high-temperature saturated steam is introduced to thoroughly sterilize the entire internal flow channel of the inoculation assembly 2, the feed tank 23, and the port of the inoculation pipe 25, forming a sterile barrier. Subsequently, the drive assembly 26 drives the built-in ring block 22 to rotate, so that the feed port 221 is switched to connect with the inoculation pipe 25. At this time, the seed liquid flows into the tank 1 in a completely sealed and sterile state. During this process, the sterilization and inoculation states are seamlessly switched by rotation within the same sealed cavity. There is no open operation throughout the process, which eliminates the possibility of external air and bacteria entering the tank 1 and reduces the contamination rate to an extremely low level.

[0023] When the first strain of bacteria needs to be inoculated, the drive assembly 26 drives the built-in ring block 22 to rotate, so that the feed hole 221 is first aligned with the first sterilization pipe 24, and high-temperature steam is introduced to pre-sterilize the inside of the inoculation assembly 2. Then, it continues to rotate, so that the feed hole 221 is aligned with the first inoculation pipe 25, and the inoculation of the first strain of bacteria is completed.

[0024] After inoculation, if a second strain needs to be introduced, the drive component 26 drives the built-in ring block 22 to continue rotating. During this process, the feed hole 221 will first align with the sterilization pipe 24 located between the first inoculation pipe 25 and the second inoculation pipe 25. At this time, the system will introduce high-temperature steam again to sterilize the feed tank 23, the feed hole 221 and the port of the second inoculation pipe 25 to be used. This will completely kill any small amount of the first strain that may remain at the end of the first inoculation pipe 25, preventing it from being mixed into the subsequent second strain. After sterilization, the system will continue to rotate until it is aligned with the second inoculation pipe 25, thus achieving aseptic introduction of the second strain.

[0025] This ensures that each strain change is accompanied by an independent online sterilization step. No matter how many strains need to be introduced, the inoculation component 2 can complete the repeated cycle of sterilization and inoculation through the continuous rotation of the built-in ring block 22. This ensures that the entire inoculation channel remains sterile when introducing the next strain, avoiding contamination of the next strain by the residue of the previous strain, and achieving true aseptic multi-strain sequential inoculation.

[0026] By utilizing the composite structure of the external ring pipe 21 and the internal ring block 22, the feed trough 23, sterilization pipe 24, and inoculation pipe 25 are integrated into a compact module. This reduces the number of welding and sealing points on the tank body 1 cover, lowers the risk of leakage, and improves the structural stability of the tank body during high-pressure sterilization and negative-pressure fermentation. It also avoids the need for complex external aseptic connection pipes, reduces the space occupied by the equipment, and makes the cleaning and maintenance of the mixing tank more convenient. The internal ring block 22 can not only rotate but also move along the axis of the external ring pipe 21. When sterilization is required or cleaning is needed after fermentation, the internal ring block 22 moves upward, forming a sealed cavity at the lower end of the external ring pipe 21. At this time, both the sterilization pipe 24 and the inoculation pipe 25 are interconnected with this cavity. When the internal ring block 22 moves upward, the feed trough 23 connects with the sterilization pipe 24 and the inoculation pipe... 25 is completely exposed in the cavity. At this time, the introduction of cleaning liquid or steam can thoroughly clean and sterilize all surfaces that have come into contact with the material. By setting several inoculation pipes 25 in a ring on the outer wall of the external ring pipe 21, multi-point distributed inoculation is achieved. When the internal ring block 22 rotates to the point where the feed hole 221 is aligned and connected with the inoculation pipe 25, the seed liquid is diverted through the feed trough 23 to the multiple inoculation pipes 25 arranged in a ring, and sprayed evenly into the culture medium in the tank 1 in a ring shape. It is not only suitable for fermentation of a single strain, but also perfectly capable of handling complex fermentation processes with multiple strains, multiple stages, and high precision. Under the premise of ensuring a sterile environment, it realizes rapid and clean switching between different strains, avoids cross-contamination, ensures the accuracy of the fermentation population ratio, simplifies the equipment structure, and improves the level of automation.

[0027] An annular groove 211 is provided inside the external annular tube 21 to accommodate the internal annular block 22. The outer wall of the internal annular block 22 is sealed and fitted with the annular groove 211. When the internal annular block 22 rotates and rises and falls in the annular groove 211, its outer wall and the inner wall of the annular groove 211 form a tight sliding seal, which effectively prevents the liquid in the feed trough 23 from leaking into the external space and also prevents external bacteria from entering the internal flow channel, further improving the sterility assurance level. The upper end of the internal annular block 22 is positioned above the external annular tube 21 through the annular groove 211.

[0028] The upper end of the built-in ring block 22 is connected to a sealing cover 222 via a bearing. The bottom end of the sealing cover 222 is provided with a scraper 231 that fits against the inner wall of the feed trough 23. The scraper 231 is provided with a suction pipe 2311 inside. One end of the suction pipe 2311 is extended and connected to a suction system, and a solenoid valve is provided on the suction pipe 2311.

[0029] When the sealing cover 222 is driven to rotate, the scraper 231 moves in a circular motion against the inner wall of the feed trough 23, scraping off the residual bacterial liquid, culture medium, or cleaning solution adhering to the inner wall. At the same time, the suction pipe 2311 generates negative pressure through the suction system, quickly sucking away the scraped liquid, realizing an active cleaning mode of scraping and suction at the same time. This avoids the accumulation of residual liquid in the tank or its flow downstream. In the process of multi-strain inoculation, after each inoculation, the scraper 231, together with the suction pipe 2311, can thoroughly remove and suck away the residual bacteria on the inner wall of the feed trough 23. Combined with the subsequent high-temperature steam treatment of the sterilization pipe 24, cross-contamination between different strains is avoided. After sterilization or during batch production intervals, the suction system can continue to work, working with the rotation of the scraper 231 to remove condensate or residual moisture in the feed trough 23, keeping the inside of the feed trough 23 dry and effectively preventing the growth of microorganisms in a humid environment.

[0030] The drive assembly 26 includes a first drive gear ring 261, a second drive gear ring 262, a first ratchet component 263, a second ratchet component 264, and a drive motor 265. The drive motor 265 is fixed to the upper cover of the tank body 1 by a bracket. The first drive gear ring 261 and the second drive gear ring 262 are sleeved side by side on the output rod of the drive motor 265.

[0031] The first ratchet component 263 is fitted onto the outer wall of the built-in ring block 22, and the second ratchet component 264 is fitted onto the outer wall of the closed cover 222. A toothed ring a2631 that meshes with the first drive toothed ring 261 is fitted onto the outer wall of the first ratchet component 263, and a toothed ring b2641 that meshes with the second drive toothed ring 262 is fitted onto the outer wall of the second ratchet component 264.

[0032] The first ratchet component 263 is fitted onto the outer wall of the inner ring block 22. Its outer wall is provided with a toothed ring a2631 that meshes with the first drive toothed ring 261. When the drive motor 265 drives the first drive toothed ring 261 to rotate, the first ratchet component 263 drives the inner ring block 22 to rotate through the meshing transmission of the toothed ring a2631. Since the first ratchet component 263 has a unidirectional transmission characteristic, the inner ring block 22 is driven to rotate in a specific rotation direction, but does not transmit power when rotating in the opposite direction. This provides a basis for independent control of subsequent lifting and lowering actions. The second ratchet component 264 is fitted onto the outer wall of the closed cover 222. Its outer wall is provided with teeth that mesh with the second drive toothed ring 262. Ring b2641 and the second drive gear ring 262 are driven by the same drive motor 265 or an independent motor. The rotation control of the closed cover 222 is realized through the second ratchet component 264. The design of the double ratchet component and the double drive gear ring allows the same drive motor 265 to control the rotation of the built-in ring block 22 and the closed cover 222 through different transmission paths. In the cleaning mode, the discharge hole 232 and the discharge hole 2231 can be misaligned by controlling the lower ring plate 223 to isolate the feed trough 23 from the tank body 1. At this time, the scraper 231 and the suction pipe 2311 can independently complete the cleaning and drying of the feed trough 23 without discharging the cleaning liquid into the tank body 1.

[0033] It should be noted that both sides of the outer wall of the output rod are provided with protrusions. The center holes of the first drive gear ring 261 and the second drive gear ring 262 are provided with slots that slide and engage with the protrusions. The first drive gear ring 261 and the second drive gear ring 262 are connected by a bearing. The upper end of the first drive gear ring 261 is connected to the linkage 4 through a bearing ring, so that the first drive gear ring 261 and the second drive gear ring 262 can move up and down with the built-in ring block 22 without affecting the rotation drive.

[0034] One end of the inoculation pipe 25 is connected to the inoculation liquid via a connector, and one end of the sterilization pipe 24 is connected to high-temperature steam. A lower ring plate 223 is connected to the lower ring block 22 via a bearing. A discharge hole 2231 is provided on the lower ring plate 223. A discharge hole 232, intermittently communicating with the discharge hole 2231, is provided at the bottom of the feed trough 23. The bottom of the discharge hole 2231 communicates with the tank body 1 via a telescopic tube penetrating the external ring pipe 21. By rotating or moving the lower ring plate 223, the alignment and misalignment of the discharge hole 232 and the discharge hole 2231 can be precisely controlled. When it is necessary to... When seed liquid is injected into tank 1, the two are aligned and interconnected. The liquid flows into tank 1 through the telescopic pipe. When no material is needed, the two are misaligned. The liquid in feed trough 23 is sealed above the lower ring plate 223 and will not automatically flow into tank 1 due to gravity. In cleaning mode, the discharge hole 232 and the outlet hole 2231 can be misaligned by controlling the lower ring plate 223 to isolate feed trough 23 from tank 1. At this time, the scraper 231 and the suction pipe 2311 can independently complete the cleaning and drying of feed trough 23 without discharging the cleaning liquid into tank 1.

[0035] A stirrer 3 is installed inside the tank body 1. The upper end of the stirrer 3 is connected to the output end of the stirring motor. The stirring motor is fixed to the top cover of the tank body 1 by a support plate. A third ratchet 31 is sleeved on the output end of the stirring motor. The outer wall of the third ratchet 31 is connected to the linkage 4 by a belt. The linkage 4 is connected to the built-in ring block 22. The linkage 4 includes a moving plate 41, a connecting plate 42 and a linkage screw 43. One end of the moving plate 41 is installed with the thread on the linkage screw 43 through an extension plate. The moving plate 41 and the connecting plate 42 are connected by a bearing.

[0036] A third ratchet 31 is fitted onto the output end of the stirring motor. The outer wall of the third ratchet 31 is connected to the linkage 4 via a belt. While driving the stirrer 3 to rotate, the stirring motor transmits its power to the linkage 4 through the third ratchet 31 and the belt, thereby driving the built-in ring block 22 to move up and down. The unidirectional transmission characteristic of the third ratchet 31 ensures the controllability of power transmission. When the stirring motor rotates in the forward direction, the third ratchet 31 is in the engaged state, and the power is transmitted to the linkage 4 to drive the built-in ring block 22 to move up and down. When the stirring motor rotates in the reverse direction, the third ratchet 31 is in the disengaged state, the stirrer 3 rotates normally, and the linkage 4 does not move. The driving power of the stirrer 3 is transmitted to the linkage 4 through the belt. The power distribution is completed using the limited space of the tank 1 cover, which greatly reduces the space occupied by additional power components, making the overall structure of the equipment more compact and easy to arrange in a space-constrained production workshop. At the same time, more installation space is reserved for other interfaces of the tank 1 cover.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency lactic acid bacteria mixing tank, comprising a tank body (1), wherein a feed pipe (11) is provided on the top cover of the tank body (1), characterized in that, The feed pipe (11) is provided with an inoculation assembly (2); The inoculation assembly (2) includes an external ring tube (21), an internal ring block (22), a feed trough (23), a sterilization pipe (24), an inoculation pipe (25), and a drive assembly (26). The drive assembly (26) is connected to the internal ring block (22) and is used to drive the internal ring block (22) to rotate inside the external ring tube (21). The internal ring block (22) has a feed trough (23) inside. The outer wall of the external ring tube (21) is provided with a number of inoculation pipes (25) in a ring. A sterilization pipe (24) is provided between adjacent inoculation pipes (25). The internal ring block (22) has a feed hole (221) that communicates with the feed trough (23). When the internal ring block (22) rotates, the feed hole (221) is intermittently aligned and communicates with the sterilization pipe (24) and the inoculation pipe (25). The built-in ring block (22) can also move along the axis of the external ring tube (21). When the built-in ring block (22) moves upward, a sealed cavity is formed at the lower end of the external ring tube (21). The sterilization pipe (24) and the inoculation pipe (25) are both connected to the cavity.

2. The high-efficiency lactic acid bacteria blending tank according to claim 1, characterized in that, The external ring tube (21) has an annular groove (211) for accommodating the internal ring block (22). The outer wall of the internal ring block (22) is sealed and fitted with the annular groove (211), and the upper end of the internal ring block (22) penetrates the annular groove (211) and is positioned above the external ring tube (21).

3. The high-efficiency lactic acid bacteria blending tank according to claim 2, characterized in that, The upper end of the built-in ring block (22) is connected to a sealing cover (222) via a bearing, and the bottom end of the sealing cover (222) is provided with a scraper strip (231) that fits against the inner wall of the feed trough (23).

4. The high-efficiency lactic acid bacteria blending tank according to claim 3, characterized in that, The drive assembly (26) includes a first drive gear ring (261), a second drive gear ring (262), a first ratchet component (263), a second ratchet component (264), and a drive motor (265). The drive motor (265) is fixed to the upper cover of the tank (1) by a bracket. The first drive gear ring (261) and the second drive gear ring (262) are sleeved side by side on the output rod of the drive motor (265).

5. The high-efficiency lactic acid bacteria blending tank according to claim 4, characterized in that, The first ratchet component (263) is fitted on the outer wall of the inner ring block (22), and the second ratchet component (264) is fitted on the outer wall of the closed cover (222). A toothed ring a (2631) that meshes with the first drive toothed ring (261) is fitted on the outer wall of the first ratchet component (263), and a toothed ring b (2641) that meshes with the second drive toothed ring (262) is fitted on the outer wall of the second ratchet component (264).

6. The high-efficiency lactic acid bacteria blending tank according to claim 3, characterized in that, The wiper blade (231) is provided with a water suction pipe (2311) inside. One end of the water suction pipe (2311) is connected to a suction system, and a solenoid valve is provided on the water suction pipe (2311).

7. The high-efficiency lactic acid bacteria blending tank according to claim 1, characterized in that, One end of the inoculation pipe (25) is connected to the inoculation liquid via a connector, and one end of the sterilization pipe (24) is connected to high-temperature steam.

8. The high-efficiency lactic acid bacteria blending tank according to claim 7, characterized in that, The built-in ring block (22) is connected to the lower ring plate (223) by a bearing. The lower ring plate (223) has a discharge hole (2231). The bottom of the feed trough (23) has a discharge hole (232) that is intermittently connected to the discharge hole (2231). The bottom of the discharge hole (2231) is connected to the tank body (1) through the external ring pipe (21) via a telescopic pipe.

9. A high-efficiency lactic acid bacteria blending tank according to claim 1, characterized in that, The tank (1) is equipped with a stirrer (3), the upper end of which is connected to the output end of the stirring motor. The stirring motor is fixed on the top cover of the tank (1) by a support plate.

10. A high-efficiency lactic acid bacteria blending tank according to claim 9, characterized in that, The output end of the stirring motor is fitted with a third ratchet component (31). The outer wall of the third ratchet component (31) is connected to the linkage component (4) via a belt. The linkage component (4) is connected to the built-in ring block (22).

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