Automatic control fermentation tank for high-efficiency culture of microorganisms

Abstract

The utility model discloses an automatic control fermentation tank for high -efficient culture of microorganism relates to fermentation technical field. The fermentation tank includes: jar body, transmission shaft, the outer wall of transmission shaft is connected with the inner wall of jar body and rotates, the top of jar body is equipped with the power device for controlling transmission shaft rotation, stirring device, stirring device installs transmission shaft's outer wall. The utility model discloses through setting up layered cylinder and spiral conveying blade, has constructed the inside and outside circulation flow channel of forcedness, and spiral conveying blade will upper layer bacterial liquid continuously send down, forms extrusion to lower layer bacterial liquid, forces bacterial liquid to form stable, controllable circulation flow between the inside and outside space of layered cylinder, strengthens the fluid mixing and mass transfer efficiency of whole in jar, and the setting of layered cylinder can protect vortex, slow down the diffusion extinction rate of vortex, effectively eliminates the stirring dead angle, ensures the uniformity of dissolved oxygen, temperature and nutrient substance distribution in whole fermentation tank.

Description

Technical Field

[0001] This utility model relates to the field of fermentation technology, specifically to an automatically controlled fermenter for efficient microbial culture. Background Technology

[0002] Fermentation tanks provide the perfect environment for the growth and reproduction of microorganisms, allowing them to multiply rapidly and in large numbers.

[0003] For example, patent publication number "CN217997147U", entitled "Microbial Fermentation Tank", includes a stirring shaft. A cross-shaped rotating frame is fixedly connected to the middle of the outer side of the stirring shaft. The above patent uses the cross-shaped rotating frame and two rotating frames on the bottom and top sides to set two sets of mutually perpendicular tumbling stirring blades. While the stirring shaft rotates, it drives the tumbling stirring blades to rotate further, stirring up vortices of vertical convection in the bacterial liquid, so that the bottom bacterial liquid can be turned to the upper layer to contact the outside air and supplement oxygen. At the same time, the setting of the inner guide frame and the outer guide groove allows the tumbling stirring blades to be pressed against the side wall of the fermentation tank while ensuring their rotational lubrication, so that the tumbling stirring blades are always rotating, resulting in better stirring effect.

[0004] The stirring method described in the above patent still has obvious limitations. The range of the convective vortex it generates is limited. Although convection is generated through the cross structure, the vortex has no physical constraint and is easy to diffuse and dissipate. It is difficult to maintain a uniform dissolved oxygen distribution in a large tank. Therefore, an automatically controlled fermenter for efficient microbial culture is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an automatically controlled fermenter for efficient microbial culture, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatically controlled fermenter for efficient microbial culture, the fermenter comprising:

[0007] Tank body;

[0008] A drive shaft is rotatably connected to the outer wall of the tank body, and a power device for controlling the rotation of the drive shaft is installed at the top of the tank body.

[0009] A stirring device is installed on the outer wall of the drive shaft;

[0010] A layered cylinder is used to divide the interior of a tank into two parts, an inner and an outer part. The bottom end of the layered cylinder is fixed to the bottom end of the interior of the tank. A material passage hole is provided at the bottom end of the layered cylinder.

[0011] The spiral conveying blades, located inside the layered cylinder, are fixedly installed on the outer wall of the drive shaft;

[0012] A protective assembly is installed between the tank and the agitator to protect the internal transmission parts of the agitator.

[0013] Preferably, the stirring device includes a fixed frame, the inner wall of the fixed frame and the outer wall of the drive shaft are fixed together, a plurality of rotating shafts are rotatably connected to the outer wall of the fixed frame, stirring blades are fixedly connected to the outer wall of the rotating shafts, and a transmission device is installed between the outer wall of the rotating shafts and the inner wall of the tank.

[0014] Preferably, the transmission device includes a first gear, the inner wall of the first gear and the outer wall of the rotating shaft are fixed together, and an inner gear ring is fixedly connected to the inner wall of the tank, the outer wall of the first gear and the inner wall of the first gear ring mesh together.

[0015] Preferably, the power unit includes a No. 1 motor, which is fixedly installed at the top of the tank, and the output end of the No. 1 motor is fixed to the top of the transmission shaft.

[0016] Preferably, the protective component includes a protective cover, the outer wall of which is slidably connected to the inner wall of the tank, and a through hole is provided at the bottom end of the protective cover. The outer wall of the rotating shaft is rotatably connected to the bottom end of the protective cover through the through hole.

[0017] Preferably, the bottom end of the drive shaft is rotatably connected to the bottom end of the tank body, a feed pipe is installed at the top of the tank body, and a parameter detector is installed inside the tank body.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This automated fermenter for efficient microbial cultivation constructs a forced internal and external circulation channel by setting up a layered cylinder and spiral conveyor blades. The spiral conveyor blades continuously transport the upper layer of bacterial solution downwards, compressing the lower layer of bacterial solution and forcing the bacterial solution to form a stable and controllable circulation flow between the inner and outer spaces of the layered cylinder. This enhances the overall fluid mixing and mass transfer efficiency within the tank. Furthermore, the layered cylinder design protects against vortices, slows down the diffusion and elimination rate of vortices, effectively eliminates dead zones in the stirring process, and ensures the uniform distribution of dissolved oxygen, temperature, and nutrients throughout the fermenter.

[0020] Meanwhile, by setting the stirring blades to rotate around their own axis, the stirring blades rotate on their own axis while revolving around the revolution, which can produce a stronger shearing and mixing effect on the bacterial solution, further breaking up bubbles, increasing the dissolved oxygen rate, and preventing bacterial clumping. The protective cover isolates key components such as the transmission gears from the culture medium, which significantly improves the operational reliability and service life of the transmission system. Attached Figure Description

[0021] Figure 1 This is an isometric drawing of the present invention;

[0022] Figure 2 This is an internal view of the present invention;

[0023] Figure 3 This is a cross-sectional view of the present invention.

[0024] In the diagram: 1. Tank body; 2. Drive shaft; 3. Stirring device; 301. Fixing frame; 302. Rotating shaft; 303. Stirring blades; 304. Gear No. 1; 305. Internal gear ring No. 1; 4. Screw conveyor blades; 5. Layered cylinder; 6. Power unit; 601. Motor No. 1; 7. Feed pipe; 8. Protective components; 801. Protective cover; 9. Material passage hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 - Figure 3 As shown, this utility model provides a technical solution: an automatically controlled fermenter for efficient microbial culture, the fermenter comprising:

[0027] Tank 1;

[0028] The transmission shaft 2 is rotatably connected to the outer wall of the tank body 1, and a power device 6 for controlling the rotation of the transmission shaft 2 is installed at the top of the tank body 1.

[0029] Stirring device 3 is installed on the outer wall of drive shaft 2;

[0030] The bottom end of the layered cylinder 5, which is used to divide the interior of the tank 1 into two parts, is fixed to the bottom end of the interior of the tank 1. The bottom end of the layered cylinder 5 is provided with a material passage hole 9.

[0031] The spiral conveying blade 4 is located inside the layered cylinder 5 and is fixedly installed on the outer wall of the drive shaft 2.

[0032] The protective component 8 is installed between the tank 1 and the stirring device 3 to protect the internal transmission parts of the stirring device 3.

[0033] The stirring device 3 includes a fixed frame 301, the inner wall of the fixed frame 301 is fixed to the outer wall of the transmission shaft 2, a plurality of rotating shafts 302 are rotatably connected to the outer wall of the fixed frame 301, stirring blades 303 are fixedly connected to the outer wall of the rotating shafts 302, and a transmission device is installed between the outer wall of the rotating shafts 302 and the inner wall of the tank 1.

[0034] The transmission device includes a first gear 304, the inner wall of the first gear 304 is fixed to the outer wall of the rotating shaft 302, and a first internal gear ring 305 is fixedly connected to the inner wall of the tank body 1. The outer wall of the first gear 304 and the inner wall of the first internal gear ring 305 mesh with each other.

[0035] The power unit 6 includes a first motor 601, which is fixedly installed on the top of the tank 1. The output end of the first motor 601 is fixed to the top of the transmission shaft 2.

[0036] The protective component 8 includes a protective cover 801, the outer wall of the protective cover 801 is slidably connected to the inner wall of the tank 1, and a through hole is provided at the bottom end of the protective cover 801. The outer wall of the rotating shaft 302 is rotatably connected to the bottom end of the protective cover 801 through the through hole.

[0037] The bottom end of the drive shaft 2 is rotatably connected to the bottom end inside the tank 1. The top of the tank 1 is equipped with a feed pipe 7, and the inside of the tank 1 is equipped with a parameter detector.

[0038] The parameter detector and temperature control device (not shown in the figure) installed inside the tank 1 can be used to monitor and adjust the environmental parameters inside the tank. These parameters provide a reliable basis for the automated control of dissolved oxygen and nutrient supply inside the tank 1.

[0039] like Figure 3 As shown, Figure 3 The middle arrow indicates the direction of fluid circulation. When culturing microorganisms, the output end of motor 601 rotates, and through the transmission shaft 2, the spiral conveyor blades 4 rotate. Due to the cooperation between the spiral conveyor blades 4 and the layered cylinder 5, the spiral conveyor blades 4 can transport the microbial liquid to the bottom of the tank 1. The layered cylinder 5 divides the interior of the tank 1 into two parts, an inner and an outer part. The inner and outer parts can be connected at the upper and lower ends of the layered cylinder 5, respectively. The microbial liquid moves to the bottom of the layered cylinder 5, thereby squeezing the liquid that was originally at the bottom of the layered cylinder 5, so that the liquid at the bottom moves to the outside through the feed hole 9. When the spiral conveyor blades 4 rotate, they transport the upper fluid inside the layered cylinder 5 downwards, enter the outer area through the feed hole 9 at the bottom of the layered cylinder 5, and then flow back upwards to the top area of ​​the layered cylinder 5, forming a continuous internal and external circulation. This circulation ensures that the liquid is fully in contact with oxygen, thereby ensuring the average dissolved oxygen concentration of the liquid.

[0040] The output shaft drives the fixed frame 301, drive shaft 2, and protective cover 801 to rotate synchronously. The rotation of the protective cover 801 protects the internal transmission mechanism and isolates the first gear 304 from the culture medium. The fixed frame 301 has perforations that facilitate the passage of substances from the feed pipe 7 into the layered cylinder 5. During the rotation of the drive shaft 2, the first gear 304 meshes with the first internal gear ring 305, causing the first gear 304 to rotate. This rotation of the first gear 304, along with the rotation of the rotating shaft 302 and stirring blades 303, stirs and rotates the bacterial solution, ensuring uniform nutrient absorption. By using the layered cylinder 5 and the spiral conveying blades 4, a forced internal and external circulation system is constructed. The circulating channel and spiral conveyor blades 4 continuously transport the upper bacterial solution downwards, compressing the lower bacterial solution and forcing it to form a stable and controllable circulating flow between the inner and outer spaces of the layered cylinder 5. This enhances the overall fluid mixing and mass transfer efficiency within the tank. Furthermore, the layered cylinder 5 protects against vortices, reduces diffusion and eliminates dead zones, and ensures the uniform distribution of dissolved oxygen, temperature, and nutrients throughout the fermenter. By setting the stirring blades 303 to rotate around their own axis 302, the stirring blades 303 rotate on their own axis while revolving around the central axis, generating a stronger shearing and mixing effect on the bacterial solution. This further breaks up bubbles, increases the dissolved oxygen rate, and prevents bacterial clumping. The protective cover 801 isolates key components such as the transmission gears from the culture medium, significantly improving the operational reliability and service life of the transmission system.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An automatically controlled fermenter for efficient microbial culture, characterized in that, The fermenter includes: Tank body (1); A drive shaft (2) is rotatably connected to the outer wall of the drive shaft (2) and the inner wall of the tank (1). A power device (6) for controlling the rotation of the drive shaft (2) is installed at the top of the tank (1). A stirring device (3) is installed on the outer wall of the drive shaft (2); The bottom end of the layered cylinder (5) used to divide the inside of the tank (1) into two parts, the bottom end of the layered cylinder (5) and the bottom end of the tank (1) are fixed together. The bottom end of the layered cylinder (5) is provided with a material passage hole (9). The spiral conveying blade (4) located inside the layered cylinder (5) is fixedly installed on the outer wall of the drive shaft (2); A protective component (8) is installed between the tank (1) and the stirring device (3) to protect the internal transmission parts of the stirring device (3).

2. The automatically controlled fermenter for high-efficiency microbial culture according to claim 1, characterized in that: The stirring device (3) includes a fixed frame (301), the inner wall of the fixed frame (301) and the outer wall of the transmission shaft (2) are fixed together, a plurality of rotating shafts (302) are rotatably connected to the outer wall of the fixed frame (301), stirring blades (303) are fixedly connected to the outer wall of the rotating shaft (302), and a transmission device is installed between the outer wall of the rotating shaft (302) and the inner wall of the tank (1).

3. An automatically controlled fermenter for efficient microbial culture according to claim 2, characterized in that: The transmission device includes a first gear (304), the inner wall of the first gear (304) and the outer wall of the rotating shaft (302) are fixed together, and the inner wall of the tank (1) is fixedly connected to a first internal gear ring (305), the outer wall of the first gear (304) and the inner wall of the first internal gear ring (305) mesh together.

4. An automatically controlled fermenter for efficient microbial culture according to claim 1, characterized in that: The power unit (6) includes a No. 1 motor (601), which is fixedly installed on the top of the tank (1). The output end of the No. 1 motor (601) is fixed to the top of the transmission shaft (2).

5. An automatically controlled fermenter for efficient microbial culture according to claim 2, characterized in that: The protective component (8) includes a protective cover (801), the outer wall of the protective cover (801) and the inner wall of the tank (1) are slidably connected, and a through hole is provided at the bottom end of the protective cover (801). The outer wall of the rotating shaft (302) is rotatably connected to the bottom end of the protective cover (801) through the through hole.

6. An automatically controlled fermenter for efficient microbial culture according to claim 1, characterized in that: The bottom end of the drive shaft (2) is rotatably connected to the bottom end inside the tank (1), the top end of the tank (1) is equipped with a feed pipe (7), and the inside of the tank (1) is equipped with a parameter detector.

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