Anaerobic fermentation cultivation tank for food production

Abstract

The invention discloses an anaerobic fermentation cultivation tank for food production, and relates to the field of food production.The anaerobic fermentation cultivation tank comprises a fermentation tank, a material supplementing mechanism is installed at the top of the fermentation tank, a driving mechanism is installed on one side of the top of the fermentation tank and is in transmission connection with the material supplementing mechanism, and a first stirring assembly is installed in an inner cavity of the fermentation tank; the first stirring assembly is used for assisting food fermentation. According to the invention, the height of the material supplementing port is accurately adjusted by controlling the lifting of the first rotating rod, the accurate control of the automatic material supplementing position can be realized, balanced nutritional ingredients such as a carbon source, a nitrogen source, vitamins and mineral substances can be continuously provided for microorganisms in different fermentation stages, and the material supplementing port is at a proper height; the newly added materials are rapidly and fully mixed with the fermentation liquid, so that the concentration imbalance of local nutrient substances is avoided, the microorganisms are ensured to uniformly obtain nutrients and maintain vigorous growth and metabolism states, and the fermentation efficiency and the product yield are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of food production, in particular to an anaerobic fermentation cultivation tank for food production. Background Art

[0002] In an anaerobic environment, microorganisms (such as lactic acid bacteria and yeasts) ferment food, converting nutrients like carbohydrates and proteins into metabolites such as organic acids, alcohols, and gases (such as carbon dioxide and hydrogen). These products not only give food a unique flavor, taste, and texture, but also inhibit the growth of harmful microorganisms, extending the shelf life of food.

[0003] For example, publication number CN117751978B discloses a food fermentation tank, comprising: a rotating frame, which is rotatably connected to the inside of the tank shell, a plurality of stirring blades rotatably connected to the rotating frame, a linkage shaft is sleeved inside the rotating frame, a feed pipe is fixedly connected to the top of the tank shell, and a discharge valve is provided at the discharge port at the bottom of the tank shell; a plurality of push plates are provided, each of which is radially slidably connected to the rotating frame with the central axis of the tank shell as a reference; a drive assembly is provided on the tank shell; and a transmission assembly is provided inside the tank shell.

[0004] However, in the prior art, during the food fermentation process, when the raw materials are just put in, there are often problems of particle agglomeration and solid-liquid stratification. This requires quick breaking up of agglomerates to promote nutrient dissolution. Microorganisms will continue to consume nutrients such as carbon sources, nitrogen sources, and trace elements during the growth, reproduction, and product synthesis stages. During the fermentation process, microorganisms cannot maintain growth and metabolism without nutrients such as carbon sources, nitrogen sources, vitamins, and minerals. If automatic feeding is not performed, these nutrients will gradually be consumed as the fermentation progresses, causing the growth rate of microorganisms to slow down and insufficient biomass accumulation, ultimately affecting the yield of fermentation products. In addition, conventional feeding methods will cause the raw materials to accumulate above the liquid surface, making it difficult to quickly and fully mix with the fermentation liquid. This will destroy the uniformity inside the fermentation liquid and cause uneven distribution of nutrients. Some areas will have excess nutrients, while microorganisms in some areas may be in a state of nutrient deficiency, resulting in unbalanced growth and metabolism of microorganisms, thereby reducing fermentation efficiency and product yield. Summary of the Invention

[0005] The purpose of the present invention is to provide an anaerobic fermentation cultivation tank for food production to solve the problem of lack of automatic feeding proposed in the above-mentioned background technology. As the fermentation proceeds, these nutrients will gradually be consumed, resulting in slower microbial growth. Conventional feeding methods will cause the raw materials to accumulate above the liquid surface, making it difficult to quickly and fully mix with the fermentation liquid, which will destroy the uniformity inside the fermentation liquid and cause uneven distribution of nutrients.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: an anaerobic fermentation cultivation tank for food production, comprising a fermentation tank, a feeding mechanism installed on the top of the fermentation tank, and a drive mechanism installed on one side of the top of the fermentation tank, the drive mechanism being in transmission connection with the feeding mechanism, a first stirring assembly installed in the fermentation tank cavity, the first stirring assembly being used to assist in food fermentation, and a second stirring assembly installed on one side of the top of the fermentation tank, the second stirring assembly being used to control the feeding mechanism to move upward and downward, thereby adjusting the height of automatic feeding; The first stirring assembly includes a rotating sleeve and a fixed rod, the outer surface of the bottom end of the rotating sleeve is fixedly connected to the support rod, one end of the support rod is rotatably connected to the rotating block, the side wall of the rotating block is fixedly connected to the stirring plate, and the top and bottom ends of the fixed rod are fixedly connected to the transmission block; The feeding mechanism includes a first rotating rod, the top end of the first rotating rod is rotatably connected to a feeding pipe, and the outer surface of the first rotating rod is fixedly connected to a plurality of limit strips, the top end of the first rotating rod is fixedly connected to a limit block, and the bottom end of the first rotating rod is fixedly connected to a feeding port.

[0007] Preferably, a limiting groove is provided on the inner wall of the rotating sleeve, the top end of the rotating sleeve is rotatably connected to the center of the top of the fermentation tank, and the limiting groove is slidably connected to the limiting bar.

[0008] Preferably, outer surfaces of the two transmission blocks are slidably connected with movable frames, the top end of one movable frame is rotatably connected to the rotating block, and the bottom end of the other rotating block is rotatably connected to one end of the driving rod.

[0009] Preferably, the driving mechanism includes a fixed gear, the top of the fixed gear is fixedly connected to the top of the inner cavity of the fermentation tank, and both sides of the fixed gear are meshed with transmission gears, the outer surface of the transmission gear is rotatably connected to a second rotating rod, the middle part of the second rotating rod is fixedly connected to the outer surface of the rotating sleeve, and the bottom of the transmission gear is fixedly connected to a stirring blade.

[0010] Preferably, a first drive motor is installed on the top of the fermentation tank, the output end of the first drive motor is fixedly connected to a driving bevel gear, one side of the driving bevel gear is meshed with a driven bevel gear, and the driven bevel gear is fixedly connected to the outer surface of the rotating sleeve.

[0011] Preferably, a fixed sleeve is fixedly connected to the outer surface of one end of the feed pipe, a lifting rod is fixedly connected to the bottom of the fixed sleeve, a sleeve is sleeved on the outer surface of the bottom end of the lifting rod, and the bottom of the sleeve is fixedly connected to the top of the fermentation tank.

[0012] Preferably, a feed inlet is fixedly connected to one side of the top of the fermentation tank, and a discharge valve is installed at the bottom of the fermentation tank.

[0013] Preferably, the second stirring assembly includes a support plate, the side wall of the support plate is rotatably connected to a crank, the top of the side wall of the support plate is fixedly connected to a limiting sleeve, the inner side of the limiting sleeve is slidably connected to a limiting rod, and the top of the limiting rod is fixedly connected to a lifting plate.

[0014] Preferably, the bottom of the support plate is fixedly connected to the top of the fermentation tank, and a second drive motor is installed on the top of the side wall of the support plate, and the output end of the second drive motor is fixedly connected to the crank.

[0015] Preferably, a driving block is rotatably connected to the inner side of the lifting plate, the driving block is fixedly connected to one end of the crank, one end of the lifting plate is fixedly connected to a driving frame, the inner side of the driving frame is fixedly connected to a pushing block, and the pushing block is slidably connected to the limit block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the height of the feeding port is precisely adjusted by controlling the lifting and lowering of the first rotating rod, thereby realizing precise control of the automatic feeding position. At different fermentation stages, the microorganisms can be continuously provided with a balanced supply of nutrients such as carbon source, nitrogen source, vitamins and minerals. The feeding port is at an appropriate height, so that the newly added material is quickly and fully mixed with the fermentation liquid, avoiding local nutrient concentration imbalance, ensuring that the microorganisms obtain nutrients uniformly, maintaining vigorous growth and metabolic state, and thus improving fermentation efficiency and product yield.

[0017] 2. In the present invention, the height change of the bottom end of the first rotating rod will drive the driving rod to rise and fall, and the angle of the stirring plate can be flexibly adjusted through the linkage mechanism. In the early stage of fermentation, the raw materials may be agglomerated or adhered. Increasing the stirring angle can quickly break up the materials and accelerate the mixing process; after the microorganisms enter the logarithmic growth period, the stirring angle is appropriately reduced to reduce the direct impact force on the liquid, forming a relatively gentle vortex environment, reducing the risk of damage to microorganisms, promoting their healthy growth, and improving the adaptability of the stirring system to different fermentation stages.

[0018] 3. In the present invention, the first drive motor drives the active bevel gear to rotate, and drives the rotating sleeve to rotate through the driven bevel gear, so that the two stirring components and some components of the feeding mechanism operate synchronously, ensuring the spatial coordination consistency and angular synchronization of the stirring device. The second drive motor drives the crank to rotate, and the first rotating rod is lifted and lowered linearly through the driving block, lifting plate and other components, realizing automatic adjustment of the feeding function. The various components work closely together to ensure the stability and efficiency of the equipment operation and improve the overall fermentation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 2 This is a partial structural schematic diagram of an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 3 This is a schematic structural diagram of a feeding mechanism and a driving mechanism in an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 4This is a schematic structural diagram of a first stirring assembly and a feeding mechanism in an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 5 This is a schematic structural diagram of a first stirring assembly in an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 6 This is a schematic structural diagram of a driving mechanism of an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 7 This is a schematic structural diagram of a feeding mechanism and a second stirring assembly of an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 8 This is a schematic diagram of the internal structure of a second stirring assembly in an anaerobic fermentation cultivation tank for food production according to the present invention; Figure 9 This is an overall flow chart of an anaerobic fermentation cultivation tank for food production according to the present invention.

[0020] Figure: 1, fermenter; 2, feeding mechanism; 21, feeding pipe; 22, first rotating rod; 23, limit block; 24, limit bar; 25, feeding port; 26, lifting rod; 27, sleeve; 28, fixed sleeve; 3, driving mechanism; 31, first driving motor; 32, driving bevel gear; 33, driven bevel gear; 34, fixed gear; 35, second rotating rod; 36, transmission gear; 37, stirring blade; 4, first stirring group Parts; 41. Rotating sleeve; 411. Limiting groove; 42. Stirring plate; 43. Rotating block; 44. Movable frame; 45. Fixed rod; 451. Transmission block; 46. Drive rod; 47. Support rod; 5. Second stirring assembly; 51. Second drive motor; 52. Support plate; 53. Lifting plate; 54. Drive block; 55. Crank; 56. Limiting sleeve; 57. Limiting rod; 58. Drive frame; 59. Pushing block; 6. Feed inlet. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Example 1: Reference Figures 1-9The figure shows an anaerobic fermentation cultivation tank for food production, comprising a fermentation tank 1, a feeding mechanism 2 being mounted on the top of the fermentation tank 1, and a driving mechanism 3 being mounted on one side of the top of the fermentation tank 1, the driving mechanism 3 being in transmission connection with the feeding mechanism 2, a first stirring assembly 4 being mounted in the inner cavity of the fermentation tank 1, the first stirring assembly 4 being used to assist in food fermentation, and a second stirring assembly 5 being mounted on one side of the top of the fermentation tank 1, the second stirring assembly 5 being used to control the raising and lowering of the feeding mechanism 2 and adjust the height of automatic feeding; The first stirring assembly 4 includes a rotating sleeve 41 and a fixed rod 45. The outer surface of the bottom end of the rotating sleeve 41 is fixedly connected to a support rod 47. One end of the support rod 47 is rotatably connected to a rotating block 43. The side wall of the rotating block 43 is fixedly connected to a stirring plate 42. The top and bottom ends of the fixed rod 45 are fixedly connected to a transmission block 451. The feeding mechanism 2 includes a first rotating rod 22, the top end of the first rotating rod 22 is rotatably connected to the feeding pipe 21, and the outer surface of the first rotating rod 22 is fixedly connected to a plurality of limit bars 24, the top end of the first rotating rod 22 is fixedly connected to the limit block 23, and the bottom end of the first rotating rod 22 is fixedly connected to a fixed sleeve 28.

[0023] A fixed sleeve 28 is fixedly connected to the outer surface of one end of the feed pipe 21, and a lifting rod 26 is fixedly connected to the bottom of the fixed sleeve 28. A sleeve 27 is sleeved on the outer surface of the bottom end of the lifting rod 26, and the bottom of the sleeve 27 is fixedly connected to the top of the fermenter 1. A feed port 6 is fixedly connected to one side of the top of the fermenter 1, and a discharge valve is installed at the bottom of the fermenter 1.

[0024] In this embodiment, during the food production process, the raw materials are poured into the fermentation tank 1 through the feed port 6, and then enter the mixing and fermentation stage. In this process, the lifting and lowering movement of the first rotating rod 22 plays a key role. By controlling the lifting and lowering of the first rotating rod 22, the vertical height of the fixed sleeve 28 can be accurately adjusted, thereby realizing the position control of the feeding port 25 during automatic feeding. It ensures that in different fermentation stages, the feeding port is always in the position that is most conducive to the diffusion and mixing of materials, thereby continuously providing a balanced carbon source, nitrogen source, vitamins, minerals and other nutrients to the microorganisms in the tank, and when the feeding port 25 stops feeding, the entire feed pipe 21 is in a closed state, ensuring the anaerobic environment inside the fermentation tank 1.

[0025] This dynamic adjustment of the feeding position not only effectively increases microbial growth and metabolic activity, thereby improving fermentation efficiency and product yield, but also prevents abnormal nutrient concentrations in localized areas from causing microecological imbalances. Positioning the feeding port at the appropriate height allows newly added materials to quickly diffuse throughout the fermentation broth, mixing thoroughly with the existing culture, enhancing system homogeneity and ensuring a more even distribution of nutrients, thus ensuring the stability and continuity of the fermentation process.

[0026] Furthermore, the height of the bottom end of the first rotating rod 22 influences the raising and lowering of the drive rod 46 through a linkage mechanism. As the drive rod 46 moves up and down, it drives the connected movable frame 44 to move synchronously. Because the support rod 47 is fixed in a stationary position, when the drive rod 46 drives the movable frame 44 to move, the fixed rod 45 connected to it forms a universal joint-like structure with the two movable frames 44, causing the rotating block 43 to change angle and begin rotating around one end of the support rod 47. This linkage ultimately acts on the stirring plate 42, allowing its angle to be freely adjusted, enhancing the flexibility and adaptability of the stirring system.

[0027] Flexible adjustment of the stirring angle is particularly important for different fermentation stages. During the fermentation process, the characteristics of the raw materials and the state of the microorganisms are in continuous change. Adjustment of the stirring angle can change the radial shear force generated by stirring. For example, in the early stages of fermentation, the raw materials may be agglomerated or adhered. At this time, the stirring angle can be increased and the stirring intensity can be increased to quickly break up the materials and accelerate the mixing process. After the microorganisms enter the logarithmic growth phase, their cell wall structure is relatively fragile. If the stirring intensity is too high, it is easy to cause mechanical damage. Therefore, at this stage, appropriately reducing the stirring angle and reducing the direct impact force of the impeller on the liquid can form a relatively gentle vortex environment, thereby effectively reducing the risk of damage to the microorganisms and promoting their healthy growth.

[0028] In addition, sensors are installed inside the fermentation tank 1 to monitor the nutrient concentration, pH, microbial count and activity in the fermentation liquid. Based on the monitoring data, the feeding rate, stirring frequency and time are automatically adjusted to achieve more precise automatic control, further optimize the fermentation process, and improve fermentation efficiency and product quality stability. Example 2: Figure 3-Figure 6 As shown, the inner wall of the rotating sleeve 41 is provided with a limit slot 411. The top of the rotating sleeve 41 is rotatably connected to the center of the top of the fermenter 1. The limit slot 411 is slidably connected to the limit bar 24. The outer surfaces of the two transmission blocks 451 are both slidably connected to movable frames 44. One of the movable frames 44 is rotatably connected to the top of the rotating block 43, and the bottom of the other rotating block 43 is rotatably connected to one end of a drive rod 46. The drive mechanism 3 includes a fixed gear 34. The top of the fixed gear 34 is fixedly connected to the top of the inner cavity of the fermenter 1. The fixed gear 34 is meshed with transmission gears 36 on both sides. The outer surface of the transmission gear 36 is rotatably connected to a second rotating rod 35. The middle portion of the second rotating rod 35 is fixedly connected to the outer surface of the rotating sleeve 41. The bottom of the transmission gear 36 is fixedly connected to a stirring blade 37. A first drive motor 31 is mounted on the top of the fermenter 1. The output end of the first drive motor 31 is fixedly connected to a driving bevel gear 32. The driving bevel gear 32 is meshed with a driven bevel gear 33 on one side. The driven bevel gear 33 is fixedly connected to the outer surface of the rotating sleeve 41.

[0029] In this embodiment, the first drive motor 31 serves as the core driving source of the entire power system. During operation, it drives the connected driving bevel gear 32 to rotate at high speed. Because the bevel gear structure has excellent spatial steering transmission characteristics, the rotation of the driving bevel gear 32 can stably and efficiently transmit power to the meshing driven bevel gear 33, achieving axial power conversion.

[0030] The rotation of the driven bevel gear 33 further drives the connected rotating sleeve 41 to rotate. The rotating sleeve 41 is not only a key intermediary structure for the rotational transmission, but also simultaneously drives the support rod 47 during rotation, achieving overall actuation of the stirring mechanism. Furthermore, it is internally provided with a retaining groove 411, which exerts a precise thrust on the retaining bar 24 during rotation, thereby controlling the coordinated rotation of the first rotating rod 22. This ensures the synchronous rotation of multiple components, effectively safeguarding the spatial coordination and angular synchronization of the stirring mechanism, and avoiding problems such as uneven stirring caused by angular misalignment or asynchrony.

[0031] At the same time, the rotation of the rotating sleeve 41 also drives the synchronous rotation of the second rotating rod 35. One end of the second rotating rod 35 is connected to two symmetrically arranged transmission gears 36. When these transmission gears 36 rotate, they not only drive the stirring blades 37 to perform normal stirring tasks, but also form a compound motion mechanism with the help of the fixed gear 34 arranged on their outer parts.

[0032] Specifically, the fixed gear 34 is designed to be stationary. When the transmission gear 36 rotates around it, a compound motion state is generated due to the principle of gear meshing. Driven by the transmission gear 36, the stirring blade 37 not only rotates around its own axis, but also around the central axis of the system. This superimposed motion trajectory of rotation and revolution greatly improves the shear efficiency and turbulence intensity of the stirring liquid, facilitates the efficient mixing of raw materials and bacterial strains, increases the rate of material transfer, accelerates substrate degradation and product accumulation, and thus significantly optimizes the entire fermentation process.

[0033] Example 3: According to Figure 7 and Figure 8 As shown, the second stirring assembly 5 includes a support plate 52, a crank 55 rotatably connected to the side wall of the support plate 52, a limit sleeve 56 fixedly connected to the top of the side wall of the support plate 52, a limit rod 57 slidably connected inside the limit sleeve 56, and a lifting plate 53 fixedly connected to the top of the limit rod 57. The bottom of the support plate 52 is fixedly connected to the top of the fermentation tank 1, and a second drive motor 51 is mounted on the top of the side wall of the support plate 52, the output end of the second drive motor 51 fixedly connected to the crank 55. A drive block 54 is rotatably connected to the inside of the lifting plate 53, and the drive block 54 is fixedly connected to one end of the crank 55. A drive frame 58 is fixedly connected to one end of the lifting plate 53, and a push block 59 is fixedly connected inside the drive frame 58, and the push block 59 is slidably connected to the limit block 23.

[0034] In this embodiment, when the second drive motor 51 is running, it drives the connected crank 55 to rotate continuously. Because one end of the crank 55 is connected to the drive block 54, during rotation, the crank 55 not only performs a circular motion but also, through its eccentric structure, drives the drive block 54 to perform a circular motion along a specific trajectory. The drive block 54 is embedded in the internal guide groove of the lifting plate 53. While being driven in circular motion, it slides in the guide groove and applies a periodic force to the lifting plate 53, thereby driving the lifting plate 53 in reciprocating up and down motion.

[0035] As the lifting plate 53 moves vertically, the limit rod 57 attached to its bottom also moves up and down. Because the limit rod 57 passes through the limit sleeve 56 and is precisely guided and restricted by its internal structure, its movement always remains vertical, avoiding deflection or shaking, thereby ensuring the smoothness and accuracy of the entire lifting process.

[0036] As the limiting rod 57 moves linearly, the drive frame 58 connected to it is also driven to achieve synchronous vertical linear reciprocating motion. The drive frame 58 cooperates with the limiting block 23 through its push block 59. During the reciprocating motion, it periodically applies an upward or downward driving force to the first rotating rod 22, causing the first rotating rod 22 to achieve linear lifting and lowering motion.

[0037] The up-and-down movement of the first rotating rod 22 directly drives the feed tube 21 mounted thereon to rise and fall synchronously, thereby achieving automatic adjustment of the feed function. Furthermore, a lifting rod 26 is located at the bottom of the feed tube 21. During its movement, this lifting rod 26 is limited and guided by an external sleeve 27. The sleeve 27 effectively suppresses lateral displacement or vibration of the lifting rod 26 and feed tube 21 during the lifting process, thereby enhancing lifting stability and improving feeding accuracy and reliability.

[0038] The device's usage and operating principle: During the food production process, raw materials are poured into the fermentation tank 1 through the feed port 6. During the mixing process, the height of the feed port 25 can be adjusted by controlling the rise and fall of the first rotating rod 22, thereby precisely controlling the automatic feeding position. This design not only continuously provides the microorganisms with sufficient carbon sources, nitrogen sources, vitamins, minerals, and other nutrients, maintaining their vigorous growth and metabolic state, thereby improving fermentation efficiency and product yield; it also ensures that the feed port 25 is at an appropriate height, allowing newly added materials to quickly and thoroughly mix with the fermentation liquid in the fermentation tank 1, avoiding local nutrient concentration imbalances, ensuring that the microorganisms obtain nutrients evenly, and maintaining the stability of the fermentation process.

[0039] The change in height of the bottom end of the first rotating rod 22 causes the drive rod 46 to rise and fall synchronously. As the drive rod 46 rises and falls, the movable frame 44 connected to it moves accordingly. Because the support rod 47 is fixed at a fixed height, when the drive rod 46 moves, the fixed rod 45 and the two movable frames 44 form a universal joint-like structure, causing the rotating block 43 to rotate about one end of the support rod 47, enabling flexible adjustment of the angle of the stirring plate 42.

[0040] Material properties vary significantly at different fermentation stages. Adjusting the stirring angle allows for flexible control of radial shear force, quickly breaking up clumped materials and accelerating mixing, while also preventing mechanical damage to delicate microorganisms caused by excessive stirring. For example, during the logarithmic growth phase, when microorganisms multiply rapidly, reducing the stirring angle to create a smooth vortex in the impeller can effectively reduce impact on the microorganisms.

[0041] When the first drive motor 31 is running, it drives the driving bevel gear 32 to rotate. The driving bevel gear 32, through meshing transmission, drives the driven bevel gear 33 to rotate synchronously, thereby transmitting power to the rotating sleeve 41, causing it to rotate. While driving the support rod 47 to rotate, the rotating sleeve 41 applies a force to the limiting bar 24 through the limiting slot 411, driving the first rotating rod 22 to rotate synchronously, ensuring the consistency of operation of all components.

[0042] The rotation of the rotating sleeve 41 drives the second rotating rod 35 to rotate, which in turn drives the two transmission gears 36. The transmission gears 36 not only drive the stirring blades 37 to stir, but also interact with the fixed gear 34 to enable the stirring blades 37 to rotate and revolve simultaneously, significantly improving the fermentation effect.

[0043] After the second drive motor 51 is started, it drives the crank 55 to perform circular motion, thereby driving the drive block 54 to perform synchronous circular motion. While the drive block 54 slides inside the lifting plate 53, it applies a force to the lifting plate 53. When the lifting plate 53 moves, the limit rod 57 connected to the bottom performs linear motion up and down under the constraint of the limit sleeve 56, thereby driving the drive frame 58 to perform synchronous linear reciprocating motion. During the movement of the drive frame 58, the push block 59 and the limit block 23 work together to drive the first rotating rod 22 to perform linear motion up and down. When the feed tube 21 moves with the first rotating rod 22, it drives the lifting rod 26 to rise and fall. The sleeve 27 limits the movement of the lifting rod 26 to ensure that the lifting process of the feed tube 21 is stable and reliable.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anaerobic fermentation tank for food production, comprising a fermentation tank (1), characterized in that: A feeding mechanism (2) is installed on the top of the fermentation tank (1), and a driving mechanism (3) is installed on one side of the top of the fermentation tank (1), the driving mechanism (3) is connected to the feeding mechanism (2) by transmission, a first stirring component (4) is installed in the inner cavity of the fermentation tank (1), the first stirring component (4) is used to assist food fermentation, and a second stirring component (5) is installed on one side of the top of the fermentation tank (1), the second stirring component (5) is used to control the feeding mechanism (2) to move up and down, and adjust the height of automatic feeding; The first stirring assembly (4) includes a rotating sleeve (41) and a fixed rod (45), wherein the outer surface of the bottom end of the rotating sleeve (41) is fixedly connected to a support rod (47), one end of the support rod (47) is rotatably connected to a rotating block (43), a side wall of the rotating block (43) is fixedly connected to a stirring plate (42), and the top and bottom ends of the fixed rod (45) are fixedly connected to a transmission block (451); The feeding mechanism (2) comprises a first rotating rod (22), the top end of the first rotating rod (22) is rotatably connected to a feeding pipe (21), and the outer surface of the first rotating rod (22) is fixedly connected to a plurality of limiting bars (24), the top end of the first rotating rod (22) is fixedly connected to a limiting block (23), and the bottom end of the first rotating rod (22) is fixedly connected to a feeding port (25).

2. The anaerobic fermentation culture tank for food production according to claim 1, characterized in that: A limiting groove (411) is provided on the inner wall of the rotating sleeve (41), the top of the rotating sleeve (41) is rotatably connected to the center of the top of the fermentation tank (1), and the limiting groove (411) is slidably connected to the limiting bar (24).

3. The anaerobic fermentation culture tank for food production according to claim 1, characterized in that: The outer surfaces of the two transmission blocks (451) are both slidably connected to movable frames (44), wherein the top end of one movable frame (44) is rotatably connected to the rotating block (43), and the bottom end of the other rotating block (43) is rotatably connected to one end of the driving rod (46).

4. The anaerobic fermentation culture tank for food production according to claim 2, characterized in that: The driving mechanism (3) includes a fixed gear (34), the top of the fixed gear (34) is fixedly connected to the top of the inner cavity of the fermentation tank (1), and both sides of the fixed gear (34) are meshedly connected to transmission gears (36), the outer surface of the transmission gear (36) is rotatably connected to a second rotating rod (35), the middle part of the second rotating rod (35) is fixedly connected to the outer surface of the rotating sleeve (41), and the bottom of the transmission gear (36) is fixedly connected to a stirring blade (37).

5. The anaerobic fermentation culture tank for food production according to claim 4, characterized in that: A first drive motor (31) is installed on the top of the fermentation tank (1). The output end of the first drive motor (31) is fixedly connected to a driving bevel gear (32). One side of the driving bevel gear (32) is meshedly connected to a driven bevel gear (33). The driven bevel gear (33) is fixedly connected to the outer surface of the rotating sleeve (41).

6. The anaerobic fermentation culture tank for food production according to claim 1, characterized in that: A fixed sleeve (28) is fixedly connected to the outer surface of one end of the feed pipe (21), a lifting rod (26) is fixedly connected to the bottom of the fixed sleeve (28), a sleeve (27) is sleeved on the outer surface of the bottom end of the lifting rod (26), and the bottom of the sleeve (27) is fixedly connected to the top of the fermentation tank (1).

7. The anaerobic fermentation culture tank for food production according to claim 1, characterized in that: A feed inlet (6) is fixedly connected to one side of the top of the fermentation tank (1), and a discharge valve is installed at the bottom of the fermentation tank (1).

8. The anaerobic fermentation culture tank for food production according to claim 3, characterized in that: The second stirring assembly (5) comprises a support plate (52), a side wall of the support plate (52) being rotatably connected to a crank (55), a top of the side wall of the support plate (52) being fixedly connected to a limiting sleeve (56), an inner side of the limiting sleeve (56) being slidably connected to a limiting rod (57), and a top of the limiting rod (57) being fixedly connected to a lifting plate (53).

9. The anaerobic fermentation culture tank for food production according to claim 8, characterized in that: The bottom of the support plate (52) is fixedly connected to the top of the fermentation tank (1), and a second drive motor (51) is installed on the top of the side wall of the support plate (52), and the output end of the second drive motor (51) is fixedly connected to the crank (55).

10. The anaerobic fermentation culture tank for food production according to claim 8, characterized in that: The inner side of the lifting plate (53) is rotatably connected to a driving block (54), the driving block (54) is fixedly connected to one end of the crank (55), one end of the lifting plate (53) is fixedly connected to a driving frame (58), the inner side of the driving frame (58) is fixedly connected to a pushing block (59), and the pushing block (59) is slidably connected to the limit block (23).

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