A fermentation tank capable of accurately controlling high-viscosity fermentation process and its use method

Abstract

The present invention discloses a fermentation tank capable of accurately controlling a high-viscosity fermentation process and a method for using the same, comprising a tank body divided into at least three sections from top to bottom, wherein a liquid adding assembly capable of accurately balancing the concentration of bacteria in the tank body is installed between each two sections of the tank body, and a stirring assembly is further provided inside the tank body, wherein the liquid adding assembly comprises an outer ring plate adapted to the tank body. By providing the liquid adding assembly, the present invention allows staff to directly inject the fermentation liquid into the tank body through the liquid adding pipe at the position of the platform, so that the tank body can accurately replenish the fermentation liquid at a certain point, ensure material balance, and improve fermentation efficiency; further, by providing an adjustment assembly, the stirring blade can be rotated clockwise or counterclockwise, and the inclination angle of the stirring blade can be controlled, thereby making the shear force of the stirring blade controllable, avoiding the large shear force of the stirring blade damaging the bacteria when rotating, thereby ensuring the quality of the finished bacteria.

Description

Technical Field

[0001] The present invention particularly relates to a fermentation tank capable of accurately controlling a high-viscosity fermentation process and a method for using the same. Background Art

[0002] The fermentation tank is an external environment device for microorganisms to grow, reproduce and form products during the fermentation process. As a microbial cultivation reactor, it can mix materials evenly, disperse gases well in the liquid phase, suspend solid particles evenly in the liquid, and evenly suspend or fully emulsify the uneven liquid phase, thereby enhancing mass and heat transfer between material phases. It replaces traditional fermentation containers such as culture bottles, sauce vats and wine cellars, and plays an important role in continuous large-scale production, increasing output and yield, and greatly improving efficiency and output.

[0003] When a fermentation tank is in use, it is usually necessary to add materials to the tank body in accordance with the stirring state of the yeast. However, existing fermentation tanks can only add fermentation liquid at a single point. At this time, the fermentation liquid is concentrated and requires a long time of stirring to mix evenly, resulting in low fermentation efficiency of the bacteria. In order to improve the stirring efficiency, the speed of the stirring blade is usually increased. However, a stirring blade with an excessively fast speed has a large shear force, which will damage the bacteria and affect the quality of the finished product.

[0004] Therefore, it is necessary to invent a fermentation tank and a method of using the same that can accurately control the high-viscosity fermentation process to solve the above problems. Summary of the Invention

[0005] (1) Purpose of the invention

[0006] The purpose of the present invention is to provide a fermentation tank and a method of using the same that can accurately control the high-viscosity fermentation process. By providing a liquid adding component, the staff can directly inject the fermentation liquid into the tank body through the liquid adding pipe at the position of the platform, so that the tank body can accurately replenish the fermentation liquid at a certain point, ensure material balance, and improve fermentation efficiency; further, by providing an adjustment component, the stirring blade can rotate clockwise and counterclockwise, and the inclination angle of the stirring blade can be controlled, thereby making the shear force of the stirring blade controllable, avoiding the large shear force of the stirring blade damaging the bacterial body when rotating, thereby ensuring the quality of the finished bacterial body, so as to solve the above-mentioned shortcomings in the technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a fermentation tank capable of accurately controlling a high-viscosity fermentation process, comprising a tank body divided into at least three sections from top to bottom, wherein a liquid adding assembly capable of accurately balancing the bacterial concentration in the tank body is installed between each two sections of the tank body, and a stirring assembly is also provided inside the tank body;

[0009] The liquid adding assembly includes an outer ring plate adapted to the tank body, an inner ring plate connected to the inner wall of the outer ring plate, a plurality of concentration sensors are installed on the inner ring plate, and a liquid adding pipe is installed on the inner wall of the inner ring plate on one side of each concentration sensor, and a one-way valve is installed inside the liquid adding pipe;

[0010] A stirring assembly is also provided inside the tank body. The stirring assembly includes a rotating shaft. Several stirring blades are connected to the outside of the rotating shaft from top to bottom. An adjusting assembly is provided inside the rotating shaft. The adjusting assembly is used to change the inclination angle of each stirring blade.

[0011] Preferably, the top and bottom of each inner ring plate are threadedly connected to the inner wall of the tank body, and each liquid adding pipe is arranged to pass through the outer ring plate and the inner ring plate.

[0012] Preferably, the rotating shaft is configured as a hollow cylinder, a rotating rod is provided between every two stirring blades symmetrically distributed about the axis of the rotating shaft, and the two stirring blades are connected to the rotating shaft through the rotating rod.

[0013] Preferably, the rotating rod passes through the rotating shaft transversely, and a sealed bearing is installed at the connection with the rotating shaft. A power motor for driving the rotating shaft to rotate is provided on the top of the tank body.

[0014] Preferably, the adjustment assembly includes a spur gear sleeved on the outside of each rotating rod, a linear rack arranged on the rear side of the spur gear and meshing with the spur gear, a C-shaped rack connected to the top of the linear rack, an incomplete gear arranged inside the C-shaped rack and meshing with the C-shaped rack, a cross bar that transversely passes through the incomplete gear and extends at both ends to the inner wall of the rotating shaft, a worm wheel sleeved on the outside of the cross bar, and a worm wheel arranged on the rear side of the worm wheel and meshing with the worm wheel.

[0015] Preferably, the linear rack is located below the rear side wall of the C-shaped rack, and a number of sliders are evenly spaced from top to bottom on the rear side of the linear rack, and a sliding groove for the sliders to slide up and down is provided on the rear side of the inner wall of the rotating shaft.

[0016] Preferably, a platform is provided on the top of the tank body, the top end of the rotating shaft extends to the top side of the platform, an opening is provided on the top of the rotating shaft, a bottom plate is installed on the rotating shaft at the opening, and a driving motor for driving the worm is installed on the bottom plate.

[0017] Preferably, a plurality of columns are provided between the driving motor and the platform, and the driving motor is connected to the tank body through the columns.

[0018] Preferably, a feed port is provided on the top of the tank body, a discharge port is provided on the bottom of the tank body, and support columns are installed at the four corners of the bottom of the tank body.

[0019] A method for using a fermentation tank capable of accurately controlling a high-viscosity fermentation process comprises the following steps:

[0020] S1. Adjusting the inclination angle of the stirring blade: The staff starts the power motor, so that the output end rotates in the forward direction, driving the worm shaft to rotate, and then driving the turbine to rotate clockwise, thereby causing the crossbar to rotate clockwise, and further driving the incomplete gear to rotate clockwise. At this time, the incomplete gear meshes with the rear teeth of the C-shaped rack, forcing the C-shaped rack to move upward, thereby driving the linear rack located below to move upward as a whole. At this time, multiple spur gears meshing with the teeth of the linear rack will rotate synchronously clockwise, thereby causing the rotating rod to drive the stirring blade to rotate clockwise, and then the inclination angles of multiple stirring blades will change together;

[0021] S2. Control of the inclination angle of the stirring blade: As the incomplete gear rotates, the stirring blade can rotate one circle around the axis of the rotating rod, that is, the inclination angle of the stirring blade can be freely controlled. If the inclination angle of the stirring blade is over-adjusted during the inclination adjustment process, that is, when the inclination angle is too large, the incomplete gear will continue to rotate clockwise, and it will change to mesh with the front teeth of the C-shaped rack. At this time, the incomplete gear will force the C-shaped rack to move downward, thereby driving the linear rack located below to move downward as a whole. At this time, multiple spur gears meshing with the teeth of the linear rack will rotate counterclockwise synchronously, thereby causing the stirring blade to rotate counterclockwise, correcting the over-adjusted inclination angle and making it smaller, so that the inclination angle of each stirring blade is consistent with the bacteria to be fermented;

[0022] S3. Injection of bacteria: The staff introduces the bacteria to be fermented and the fermentation liquid into the tank through the feed port. Then, the power motor is started, and its output end rotates to drive the rotating shaft, which in turn rotates the multiple stirring blades, stirring the bacteria and fermentation liquid in the tank, accelerating the mixing rate of the two.

[0023] S4. Accurate replenishment of fermentation liquid: When the bacteria and fermentation liquid begin to mix and ferment under the stirring blade, the concentration sensor provides real-time feedback of the mixed concentration at various locations in the tank to the staff. Based on the feedback, the staff replenishes the fermentation liquid at the location with the lower concentration. That is, through the external pipeline, the fermentation liquid is directly injected into the tank through the liquid adding pipe in or near the location. This ensures that the bacteria in the location are replenished with fermentation liquid as soon as possible, allowing the bacteria in the location to ferment quickly and increase the concentration of the mixed liquid in the location.

[0024] S5. Collection of mixed liquid: When all the bacteria have been fermented, the staff opens the discharge port at the bottom of the tank, collects the mixed liquid in the tank directly, and injects cleaning liquid through the discharge port to wash the inside of the tank, and then discharges it through the discharge port to ensure the cleanliness of the inside of the tank, and then put it into the fermentation of the next batch of bacteria.

[0025] Compared with the prior art, the beneficial effects of the above technical solution of the present invention are:

[0026] 1. The present invention is provided with a liquid adding component, which can monitor the mixed concentration of bacteria and fermentation liquid in real time. In some locations with low concentration, the staff can directly inject the fermentation liquid into the tank through the liquid adding pipe at the location of the platform, so that the tank can accurately replenish the fermentation liquid at a certain point. The fermentation liquid is evenly distributed in the tank, and the feed is provided in all directions. It can be quickly mixed with the bacteria, so that the bacteria in a certain location can be replenished with fermentation liquid in the first time, ensuring material balance and improving fermentation efficiency.

[0027] 2. The present invention drives the worm to rotate through the output end of the power motor, and then under the transmission of the turbine, cross bar and incomplete gear, the U-shaped rack can sometimes move up and sometimes move down in the rotating shaft, so that under the transmission of the linear rack, spur gear and rotating rod, the stirring blade sometimes rotates clockwise and sometimes counterclockwise, so that the inclination angle of the stirring blade can be controlled, and then the shear force of the stirring blade can be controlled. Under the premise of ensuring the rotation speed of the stirring blade, large shear force is avoided from damaging the bacterial cells, thereby ensuring the quality of the finished bacterial cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a cross-sectional view of the tank body of the present invention;

[0031] Figure 3 For the present invention Figure 2 A magnified view of the structure of part A;

[0032] Figure 4 For the present invention Figure 1 A magnified view of the structure of part A;

[0033] Figure 5 is a cross-sectional view of the rotating shaft of the present invention;

[0034] Figure 6 For the present invention Figure 5 A partial enlarged view of

[0035] Figure 7 A cross-sectional view of the rotating shaft from another perspective of the present invention;

[0036] Figure 8For the present invention Figure 7 is a partially enlarged view;

[0037] Figure 9 is an exploded view of the tank body and the liquid adding component of the present invention.

[0038] Explanation of reference numerals:

[0039] 1 tank body, 2 liquid adding component, 21 outer ring plate, 22 inner ring plate, 23 concentration sensor, 24 liquid adding pipe, 25 one-way valve, 3 stirring component, 31 rotating shaft, 32 stirring blade, 33 rotating rod, 34 power motor, 4 adjusting component, 41 spur gear, 42 linear rack, 43 U-shaped rack, 44 incomplete gear, 45 cross bar, 46 turbine, 47 worm, 48 slider, 5 platform, 6 bottom plate, 7 driving motor, 8 column, 9 feed inlet, 10 discharge outlet, 11 support column. Detailed implementation manners

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0041] The present invention provides a fermentation tank capable of accurately controlling the high-viscosity fermentation process as shown in Figure 1-9 , which includes a tank body 1 divided into at least three sections from top to bottom, and a liquid adding component 2 capable of accurately balancing the concentration of bacteria in the tank body 1 is installed between every two sections of the tank body 1, and a stirring component 3 is further arranged inside the tank body 1;

[0042] The liquid adding component 2 includes an outer ring plate 21 adapted to the tank body 1 and an inner ring plate 22 connected to the inner wall of the outer ring plate 21. A plurality of concentration sensors 23 are installed on the inner ring plate 22, and a liquid adding pipe 24 is installed on one side of each concentration sensor 23 on the inner wall of the inner ring plate 22, and a one-way valve 25 is installed inside the liquid adding pipe 24;

[0043] A stirring component 3 is further arranged inside the tank body 1. The stirring component 3 includes a rotating shaft 31, and a plurality of stirring blades 32 are connected to the outside of the rotating shaft 31 from top to bottom, and an adjusting component 4 is arranged inside the rotating shaft 31;

[0044] The adjusting assembly 4 includes a spur gear 41 sleeved on the outside of each rotating rod 33, a linear rack 42 arranged on the rear side of the spur gear 41 and meshed with the spur gear 41, a C-shaped rack 43 connected to the top of the linear rack 42, an incomplete gear 44 arranged inside the C-shaped rack 43 and meshed with the C-shaped rack 43, a cross bar 45 that passes through the incomplete gear 44 horizontally and extends to the inner wall of the rotating shaft 31 at both ends, a worm wheel sleeved on the outside of the cross bar 45, and a worm 47 arranged on the rear side of the worm wheel and meshed with the worm wheel. The adjusting assembly 4 is used to change the inclination angle of each stirring blade 32, so that the shear force of the stirring blade 32 on the bacteria can be changed, and the shear force can be controlled to meet the production needs of different bacteria.

[0045] In one embodiment, the top and bottom of each of the inner ring plates 22 are threadedly connected to the inner wall of the tank body 1, so that the three-section tank body 1 can be quickly installed, spliced, and disassembled with the liquid adding component 2, which is convenient for maintenance of the interior of the tank body 1 and the liquid adding component 2. Each of the liquid adding pipes 24 is arranged through the outer ring plate 21 and the inner ring plate 22, so that each liquid adding pipe 24 can work normally, and the one-way valve 25 can prevent the bacteria or fermentation liquid in the tank body 1 from flowing out through the liquid adding pipe 24.

[0046] In one embodiment, the rotating shaft 31 is configured as a hollow cylinder, and a rotating rod 33 is provided between each two stirring blades 32 that are symmetrically distributed about the axis of the rotating shaft 31, and the two stirring blades 32 are connected to the rotating shaft 31 through the rotating rod 33. The rotating rod 33 passes through the rotating shaft 31 horizontally, so that each stirring blade 32 can change its inclination angle as the rotating rod 33 rotates, and a sealed bearing is installed at the connection with the rotating shaft 31 to prevent bacteria or fermentation liquid from entering the rotating shaft 31. A power motor 34 for driving the rotating shaft 31 to rotate is provided on the top of the tank body 1.

[0047] In one embodiment, the linear rack 42 is located below the rear side wall of the shaped rack 43, and a number of sliders 48 are evenly spaced from top to bottom on the rear side of the linear rack 42. A sliding groove for the sliders 48 to slide up and down is provided on the rear side of the inner wall of the rotating shaft 31. When the linear rack 42 moves downward, the sliders 48 can slide up and down along the slide driven by the linear rack 42, thereby ensuring the stability of the linear rack 42 when it moves downward.

[0048] In one embodiment, a platform 5 is provided on the top of the tank body 1, and the top end of the rotating shaft 31 extends to the top side of the platform 5. An opening is provided on the top of the rotating shaft 31, and a base plate 6 is installed on the rotating shaft 31 at the opening. A driving motor 7 for driving the worm 47 is installed on the base plate 6. Several columns 8 are provided between the driving motor 7 and the platform 5. The driving motor 7 is connected to the tank body 1 through the columns 8. A feeding port 9 is provided on the top of the tank body 1, and a discharging port 10 is provided at the bottom of the tank body 1. Support columns 11 are installed at the four corners of the bottom of the tank body 1 to facilitate the assembly and use of the tank body 1.

[0049] A method for using a fermentation tank capable of accurately controlling a high-viscosity fermentation process comprises the following steps:

[0050] S1. Adjustment of the inclination angle of the stirring blade: The staff starts the power motor 34, so that the output end rotates in the forward direction to drive the worm rod to rotate, and then drives the turbine 46 to rotate clockwise, thereby causing the cross bar 45 to rotate clockwise, and further drives the incomplete gear 44 to rotate clockwise. At this time, the incomplete gear 44 is engaged with the rear teeth of the C-shaped rack 43, which will force the C-shaped rack 43 to move upward, thereby driving the linear rack 42 located below to move upward as a whole. At this time, the multiple spur gears 41 engaged with the teeth of the linear rack 42 will rotate synchronously clockwise, thereby causing the rotating rod 33 to drive the stirring blade 32 to rotate clockwise, and then the inclination angles of the multiple stirring blades 32 will change together;

[0051] S2. Control of the inclination angle of the stirring blade: As the incomplete gear 44 rotates, the stirring blade can rotate one circle around the axis of the rotating rod 33, that is, the inclination angle of the stirring blade 32 can be freely controlled. If the stirring blade 32 is over-adjusted during the inclination adjustment process, that is, when the inclination angle is too large, the incomplete gear 44 will continuously rotate clockwise, and it will be changed to mesh with the front teeth of the C-shaped rack 43. At this time, the incomplete gear 44 will force the C-shaped rack 43 to move downward, thereby driving the linear rack 42 located below to move downward as a whole. At this time, the multiple spur gears 41 meshing with the teeth of the linear rack 42 will rotate counterclockwise synchronously, thereby causing the stirring blade 32 to rotate counterclockwise, correcting the over-adjusted inclination angle and making the inclination angle smaller, so that the inclination angle of each stirring blade 32 is consistent with the bacteria to be fermented;

[0052] S3. Injection of bacteria: The staff introduces the bacteria to be fermented and the fermentation liquid into the tank body 1 through the feed port 9, then starts the power motor 34, causing its output end to rotate and drive the rotating shaft 31 to rotate, thereby causing the multiple stirring blades 32 to rotate, stirring the bacteria and fermentation liquid in the tank body 1, accelerating the mixing rate of the two;

[0053] S4. Accurate replenishment of fermentation liquid: When the bacteria and fermentation liquid begin to mix and ferment under the stirring blades 32, the concentration sensor 23 provides real-time feedback of the mixed concentration at various locations in the tank body 1 to the staff. Based on the feedback, the staff replenishes the fermentation liquid at the location with lower concentration. That is, through the external pipeline, the fermentation liquid is directly injected into the tank body 1 through the liquid adding pipe 24 in or near the location, so that the bacteria in the location can be replenished with fermentation liquid as soon as possible, so that the bacteria in the location can ferment quickly, and the concentration of the mixed liquid in the location is increased;

[0054] S5. Collection of mixed liquid: When all the bacteria have been fermented, the staff opens the discharge port 10 at the bottom of the tank body 1, collects the mixed liquid in the tank body 1 directly and uniformly, and injects cleaning liquid through the discharge port 10 to wash the inside of the tank body 1, and then discharges it through the discharge port 10 to ensure the cleanliness of the inside of the tank body 1, and then put it into the fermentation of the next batch of bacteria.

[0055] Implementation method: When the present invention is in use, by providing a liquid adding component 2, concentration sensors 23 are distributed at various locations inside the tank body 1, which can monitor the mixed concentration of the bacteria and the fermentation liquid in real time. In some locations with low concentration, the staff can inject the fermentation liquid directly into the tank body 1 through the liquid adding pipe 24 at the location of the platform 5 through an external pipeline according to the feedback of the concentration sensor 23, so that the bacteria at this location can be replenished with fermentation liquid as soon as possible, thereby allowing the bacteria at this location to ferment quickly and increase the concentration of the mixed liquid at this location. The tank body 1 can accurately provide fermentation liquid at multiple points, and the fermentation liquid is evenly distributed in the tank body 1 and can be quickly mixed with the bacteria, thereby improving the fermentation efficiency of the bacteria.

[0056] When the tank body 1 is in use, by starting the power motor 34, the output end rotates in the forward direction to drive the worm rod to rotate, and then under the transmission of the turbine 46 and the cross bar 45, the incomplete gear 44 rotates clockwise and engages with the rear teeth of the C-shaped rack 43, forcing the C-shaped rack 43 to move upward, driving the linear rack 42 located below to move upward as a whole. At this time, the multiple spur gears 41 will rotate clockwise synchronously under the movement of the linear rack 42, causing the stirring blade 32 to rotate clockwise, thereby changing the inclination angle of the stirring blade 32, and when the inclination angle correction is too large, it is ensured that the incomplete gear 44 continues to rotate. When it meshes with the teeth on the front side of the C-shaped rack 43, it forces the C-shaped rack 43 to move downward, thereby causing the linear rack 42 to move downward, and the spur gear 41 and the rotating rod 33 to rotate counterclockwise, so that the inclination angle of the stirring blade 32 is reset, thereby achieving controllable inclination angle of the stirring blade 32, making the shear force of the stirring blade 32 variable, and the staff can determine the inclination angle of the stirring blade 32 according to the shear force requirements of the bacterial cells, thereby making the shear force of the stirring blade 32 controllable. Under the premise of ensuring the rotation speed of the stirring blade 32, it is possible to avoid large shear force damaging the bacterial cells, thereby ensuring the quality of the finished bacterial cells;

[0057] Moreover, when some bacteria that do not have strict requirements on shear force are fermenting, the output end of the driving motor 7 drives the rotating shaft 31 to rotate, and then drives the stirring blade 32 to rotate, and when the bacteria and fermentation liquid in the tank body 1 are stirred and mixed, the staff can control the power motor 34 to make its output end rotate continuously, thereby making the incomplete gear 44 continuously make circular motion in the C-shaped rack 43, making the C-shaped rack 43 continuously move up and down, and then making the linear rack 42 continuously move up and down. Furthermore, at this time, the spur gear 41 will sometimes rotate clockwise and sometimes counterclockwise, so that the stirring blade 32 can also rotate clockwise and sometimes counterclockwise with the rotating rod 33 when the rotating shaft 31 rotates, thereby making the stirring mode of the stirring blade in the tank body 1 diverse and the stirring effect good, which can fully stir and mix the bacteria and fermentation liquid in the tank body 1, accelerate the mixing rate of the two, and improve the yield of bacteria.

[0058] In this embodiment, the model of the concentration sensor 23 is set to BXG-4, which is an online liquid concentration sensor 23 that can be used to detect the concentration of various liquids and is also applicable to some bacteria such as lactic acid bacteria and yeast;

[0059] In this embodiment, the inclination angle refers to the angle between the stirring blade 32 body and the horizontal plane during the rotation of the stirring blade 32, and the angle is perpendicular to the horizontal plane of the rotation angle;

[0060] In this embodiment, the greater the inclination angle of the stirring blade 32, the greater the shear force on the bacteria. Conversely, the smaller the inclination angle of the stirring blade 32, the smaller the shear force on the bacteria. Therefore, appropriately reducing the inclination angle of the stirring blade 32 can reduce the shear force on the bacteria, thereby reducing damage to the bacteria and improving fermentation efficiency. Therefore, an adjustment component 4 is provided for adjusting the inclination angle of the stirring blade 32 to make it controllable. A larger inclination angle has a stronger mixing effect. It is generally set to 30 degrees, 45 degrees, or 60 degrees.

[0061] This embodiment specifically solves the problem in the prior art that when the current fermentation tank is in use, it is usually necessary to add materials to the tank body 1 in accordance with the stirring state of the yeast. However, the existing fermentation tank can only add fermentation liquid at a single point. At this time, the fermentation liquid is concentrated and requires a long time of stirring to be evenly mixed, resulting in low fermentation efficiency of the bacteria. In order to improve the stirring efficiency, the rotation speed of the stirring blade 32 is usually increased. However, the stirring blade 32 with an excessively fast rotation speed has a large shear force, which will damage the bacteria and affect the quality of the finished product.

[0062] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A fermentation tank capable of accurately controlling a high-viscosity fermentation process, characterized in that: It includes a tank body (1) that is at least divided into three sections from top to bottom. Between every two sections of the tank body (1), a liquid adding component (2) that can accurately balance the concentration of bacteria in the tank body (1) is installed. A stirring component (3) is also arranged inside the tank body (1); The liquid adding component (2) includes an outer ring plate (21) adapted to the tank body (1), and an inner ring plate (22) connected to the inner wall of the outer ring plate (21). A number of concentration sensors (23) are installed on the inner ring plate (22). On one side of each concentration sensor (23) on the inner wall of the inner ring plate (22), a liquid adding pipe (24) is installed. A one-way valve (25) is installed inside the liquid adding pipe (24); A stirring component (3) is also arranged inside the tank body (1). The stirring component (3) includes a rotating shaft (31). A number of stirring blades (32) are connected to the outside of the rotating shaft (31) from top to bottom. An adjusting component (4) is arranged inside the rotating shaft (31), and the adjusting component (4) is used to change the inclination angle of each stirring blade (32); The rotating shaft (31) is arranged as a hollow cylinder. A rotating rod (33) is arranged between every two stirring blades (32) symmetrically distributed about the axis of the rotating shaft (31), and the two stirring blades (32) are both connected to the rotating shaft (31) through the rotating rod (33); The adjusting component (4) includes a spur gear (41) sleeved on the outside of each rotating rod (33), a linear rack (42) arranged behind the spur gear (41) and meshing with the spur gear (41), a U-shaped rack (43) connected to the top end of the linear rack (42), an incomplete gear (44) arranged inside the U-shaped rack (43) and meshing with the U-shaped rack (43), a cross bar (45) horizontally penetrating the incomplete gear (44) and extending to the inner wall of the rotating shaft (31) at both ends, a worm gear sleeved on the outside of the cross bar (45), and a worm (47) arranged behind the worm gear and meshing with the worm gear; 2. A fermentation tank capable of accurately controlling a high-viscosity fermentation process according to claim 1, characterized in that: The top and bottom of each inner ring plate (22) are threadedly connected to the inner wall of the tank body (1). Each liquid adding pipe (24) penetrates through the outer ring plate (21) and the inner ring plate (22); 3. The fermentation tank capable of accurately controlling a high-viscosity fermentation process according to claim 1, characterized in that: The rotating rod (33) horizontally penetrates the rotating shaft (31), and a sealing bearing is installed at the connection with the rotating shaft (31). A power motor (34) for driving the rotating shaft (31) to rotate is arranged at the top of the tank body (1); 4. The fermentation tank capable of accurately controlling a high-viscosity fermentation process according to claim 1, characterized in that: The linear rack (42) is located below the rear side wall of the U-shaped rack (43), and a number of sliders (48) are evenly spaced and connected to the rear side of the linear rack (42) from top to bottom. A sliding groove for the sliders (48) to slide up and down is opened on the rear side wall of the inner wall of the rotating shaft (31); 5. The fermentation tank capable of accurately controlling a high-viscosity fermentation process according to claim 1, characterized in that: A platform (5) is arranged at the top of the tank body (1). The top end of the rotating shaft (31) extends to one side of the top of the platform (5). An opening is opened at the top of the rotating shaft (31). A bottom plate (6) is installed at the opening of the rotating shaft (31). A driving motor (7) for driving the worm (47) is installed on the bottom plate (6); 6. The fermentation tank capable of accurately controlling a high-viscosity fermentation process according to claim 5, characterized in that: A number of columns (8) are provided between the drive motor (7) and the platform (5), and the drive motor (7) is connected to the tank body (1) through the columns (8).

7. The fermentation tank capable of accurately controlling a high-viscosity fermentation process according to claim 1, characterized in that: A feed inlet (9) is provided at the top of the tank body (1), a discharge outlet (10) is provided at the bottom of the tank body (1), and support columns (11) are installed at the four corners of the bottom of the tank body (1).

8. A method for using a fermentation tank capable of accurately controlling a high-viscosity fermentation process according to any one of claims 1 to 7, characterized in that: It includes the following steps: S1. Adjustment of the inclination angle of the stirring blades: The staff starts the power motor (34), so that the output end rotates forward to drive the worm to rotate, and then drives the turbine (46) to rotate clockwise, so that the cross bar (45) rotates clockwise, and further drives the incomplete gear (44) to rotate clockwise. At this time, the incomplete gear (44) meshes with the rear teeth of the U-shaped rack (43), which will force the U-shaped rack (43) to move upward, and then drive the linear rack (42) located below to move upward as a whole. At this time, a plurality of spur gears (41) meshing with the teeth of the linear rack (42) will rotate clockwise synchronously, so that the rotating rod (33) drives the stirring blades (32) to rotate clockwise, and then the inclination angles of the plurality of stirring blades (32) will change together. S2. Control of the inclination angle of the stirring blades: As the incomplete gear (44) rotates, the stirring blades can rotate one week around the axis of the rotating rod (33), that is, the inclination angle of the stirring blades (32) can be freely controlled. If the inclination angle is adjusted too much during the inclination angle adjustment of the stirring blades (32), that is, when the inclination angle is too large, through the continuous clockwise rotation of the incomplete gear (44), it will change to mesh with the front teeth of the U-shaped rack (43). At this time, the incomplete gear (44) will force the U-shaped rack (43) to move downward, and then drive the linear rack (42) located below to move downward as a whole. At this time, a plurality of spur gears (41) meshing with the teeth of the linear rack (42) will rotate counterclockwise synchronously, so that the stirring blades (32) rotate counterclockwise, and correct the inclination angle after excessive adjustment to make the inclination angle smaller, so that the inclination angle of each stirring blade (32) conforms to the bacteria to be fermented. S3. Injection of bacteria: The staff passes the bacteria to be fermented and the fermentation broth into the tank body (1) through the feed inlet (9) together, and then starts the power motor (34), so that its output end rotates to drive the rotating shaft (31) to rotate, and then makes a plurality of stirring blades (32) rotate, stirring the bacteria and the fermentation broth in the tank body (1) to accelerate the mixing rate of the two. S4. Precise supplement of the fermentation broth: When the bacteria and the fermentation broth start to be mixed and fermented under the stirring of the stirring blades (32), the concentration sensor (23) feeds back the mixing concentration at各处 in the tank body (1) to the staff in real time. The staff supplements the fermentation broth to the area with a lower concentration according to the feedback, that is, through an external pipeline, the fermentation broth is directly injected into the tank body (1) through the liquid adding pipe (24) in or near this area, so that the bacteria in this area can be supplemented with the fermentation broth in the first time, so that the bacteria in this area can be quickly fermented and the concentration of the mixed liquid in this area is increased. S5. Collection of mixed liquid: When all the bacteria have been fermented, the staff opens the discharge port (10) at the bottom of the tank body (1) to collect the mixed liquid in the tank body (1) directly and uniformly, and injects cleaning liquid through the discharge port (10) to wash the inside of the tank body (1), and then discharges it through the discharge port (10) to ensure the cleanliness of the inside of the tank body (1), and then put it into the fermentation of the next batch of bacteria.

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