Carrier fermentation tank
The carrier fermentation tank solves the problems of low efficiency, high cost and pollution risk of traditional fermentation tanks by adsorbing bacteria with fermentation carriers and precisely controlling fermentation conditions, thus achieving an efficient and stable fermentation process.
Patent Information
- Application Number
- CN202422593577.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Traditional fermentation tanks have problems such as low production efficiency, high cost, unstable product quality, uneven mixing, poor mass transfer, high contamination risk and difficulty in precise control of fermentation conditions.
The carrier fermentation tank design is adopted, including the tank body, stirring assembly, fermentation carrier, cooling water coil and air distributor. The defoaming blades, top, middle and bottom blades on the stirring shaft are used for mixing, and the fermentation carrier is used to adsorb the bacteria. Combined with the cooling water coil and air distributor, the temperature and dissolved oxygen can be precisely controlled to improve the density and activity of the bacteria.
It improves fermentation efficiency, shortens fermentation cycle, enhances product concentration and purity, reduces contamination risk, achieves stability and reproducibility of fermentation process, and reduces production cost.
Smart Images
Figure CN223357643U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biological fermentation, in particular to a carrier fermentation tank. Background Art
[0002] A fermentation tank is a container that provides a good environment for the operation of a specific biochemical process of microorganisms. It is a device for deep cultivation of microorganisms in industrial fermentation and an indispensable core equipment in modern fermentation engineering. It is regarded as the heart of the fermentation industry and the bridge connecting raw materials and products. Fermentation tanks are widely used in fields including dairy products, beverages, bioengineering, pharmaceuticals, fine chemicals, food processing, and environmental protection. In the biomedicine field, fermentation tanks are used in the production of biological products such as recombinant proteins, vaccines, and antibodies; in the food processing field, they are used in the production and research and development of traditional fermented foods such as yogurt, fermented tofu, and soy sauce; in the chemical engineering field, they are used to ferment and produce chemicals such as organic acids and amino acids; and in the environmental protection field, they can be used for sewage treatment.
[0003] The working principle of a fermentation tank is to use mechanical agitation or air rotors to generate axial and radial flow in the tank material, thereby achieving good mixing of the materials and keeping the solids in the liquid in a suspended state, which promotes full contact between the solids and nutrients and facilitates nutrient absorption. At the same time, the introduction of sterile air maintains the oxygen needs of the bacteria, meeting the growth and fermentation of aerobic bacteria.
[0004] Traditional fermentation tanks usually adopt batch fermentation, which has many problems that are difficult to solve:
[0005] First of all, batch fermentation requires frequent feeding, sterilization, cooling, cleaning and other operations, all of which consume a lot of materials and energy.
[0006] Secondly, since the bacterial strains have to go through a lag phase, a logarithmic growth phase, a stable phase and a decay phase, the entire fermentation cycle is long and the operation is complicated. A large amount of manpower is required to monitor and manage the fermentation process. The non-production stages (such as sterilization, cleaning, etc.) also take up a lot of time and manpower.
[0007] Thirdly, traditional general fermenters may have problems such as uneven mixing and poor mass transfer during the fermentation process, resulting in low fermentation efficiency, which will affect the yield and quality of the product.
[0008] Finally, batch fermentation requires frequent opening and closing of fermentation tanks, which increases the risk of contamination. Once contamination occurs, it will not only affect the product quality of the current batch, but may also cause continuous contamination of subsequent batches.
[0009] In addition, since traditional general-purpose fermenters are difficult to accurately control fermentation conditions such as temperature, pH value, dissolved oxygen, etc., the output of the product may be unstable and fluctuate, making it difficult to ensure consistency between fermentation batches.
[0010] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a carrier fermentation tank to solve the above problems.
[0011] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the present invention and facilitating the understanding of those skilled in the art. It cannot be assumed that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the present invention. Utility Model Content
[0012] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to disclose a carrier fermentation tank to solve the problems of low production efficiency, high production cost, unstable product quality and technical limitations of traditional general fermentation tanks.
[0013] The utility model discloses a carrier fermentation tank, comprising a tank body and a stirring assembly, wherein a fermentation carrier for adsorbing bacterial cells is arranged in the tank body, a cooling water coil for controlling the internal temperature of the tank body and an air distributor for controlling the dissolved oxygen in the tank body are provided on the tank body; the stirring assembly comprises a stirring motor arranged at the upper end of the tank body, an output end of the stirring motor is connected with a stirring shaft, and the stirring shaft passes through the top of the tank body and is arranged inside the tank body; the stirring shaft is provided with a defoaming blade, a top blade, a middle blade and a bottom blade in sequence from top to bottom, which respectively defoam the fermentation liquid in the tank body and stir the upper, middle and lower regions, thereby ensuring the uniformity of the internal material mixing; the fermentation carrier is arranged between the tank body and the stirring assembly through a carrier frame, so that the liquid flow generated during stirring can pass through the region where the fermentation carrier is located in a large range, so that the nutrients and sterile air in the liquid flow can fully contact the bacterial cells on the fermentation carrier; the lower end of the carrier frame is connected to the bottom of the tank body, and the air distributor is arranged at the lower end of the fermentation carrier for providing sterile air.
[0014] Preferred technical solution: There are at least two groups of fermentation carriers and corresponding carrier racks. The fermentation carriers are evenly arranged around the stirring shaft through the carrier racks. The carrier racks are composed of multiple vertically arranged carrier plates to improve the uniformity of internal bacterial distribution.
[0015] Preferred technical solution: The number of fermentation carriers and corresponding carrier racks is five groups.
[0016] Preferred technical solution: The carrier frame is detachably arranged in the tank body, which is convenient for replacement and cleaning.
[0017] Optimal technical solution: the top blade and the middle blade are three-pitched blade propellers.
[0018] Optimal technical solution: the bottom blades are six-flat-blade turbine blades.
[0019] Optimal technical solution: The lower end of the stirring shaft is rotatably connected to a bottom bearing, and the bottom bearing is arranged at the bottom of the tank body to improve the stability of the stirring shaft movement.
[0020] The preferred technical solution is as follows: the tank body includes a cylinder, the upper and lower openings of the cylinder are sealed by an upper head and a lower head respectively, the cooling water coil is arranged on the side wall of the cylinder, and the air distributor is arranged at the lower head.
[0021] The preferred technical solution is as follows: the upper head is provided with a manhole, a feed port, a feeding port, an inoculation port and an exhaust port; the cylinder is provided with an inner coil cooling water inlet, an inner coil cooling water outlet, an outer coil cooling water inlet, an outer coil cooling water outlet, a sampling port and an electrode interface; the lower head is provided with an air inlet and a discharge port.
[0022] Preferred technical solution: A support is provided at the lower end of the tank body to improve the stability of the tank body placement.
[0023] Due to the application of the above technical solution, the present invention has the following beneficial effects compared with the prior art:
[0024] The utility model discloses a carrier fermentation tank, which immobilizes the bacteria by adsorbing the bacteria on the fermentation carrier, increases the density of the bacteria, and can improve the stability and activity of the bacteria, thereby reducing the fermentation cycle and improving the fermentation efficiency. The fermentation carrier adsorbs the bacteria, which helps to improve the mass transfer effect in the fermentation liquid, and through the continuous stirring of the paddles, the substrate and oxygen can be more effectively transferred to the surface of the bacteria, thereby promoting the growth of the bacteria and the accumulation of metabolites. Since the bacteria are immobilized on the fermentation carrier, the loss of the bacteria during the fermentation process can be avoided, thereby improving the concentration and purity of the product. The carrier fermentation tank can more easily achieve precise control of the fermentation process, such as the adjustment of key parameters such as temperature, pH value, dissolved oxygen, etc., through the cooling water coil, the air distributor and the arrangement of electrodes in the electrode interface, thereby improving the stability and reproducibility of the fermentation. Because the bacteria are fixed on the fermentation carrier, they are not easily diffused into the environment with the flow of the fermentation liquid, and continuous high-density fermentation can be achieved, which is beneficial to improving equipment utilization, reducing production costs, and helping to reduce the risk of pollution during the fermentation process. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 This is a structural diagram of a carrier fermentation tank of the utility model;
[0027] Figure 2 This is a top view of the interior of a carrier fermentation tank of the present invention.
[0028] In the above drawings, 1. tank body; 11. cylinder; 11a. inner coil cooling water inlet; 11b. inner coil cooling water outlet; 11c. outer coil cooling water inlet; 11d. outer coil cooling water outlet; 11e. sampling port; 11f. electrode interface; 12. upper head; 12a. manhole; 12b. feed port; 12c. feeding port; 12d. inoculation port; 12e. exhaust port; 13. lower head; 13a. air inlet; 13b. discharge port; 14. support; 2. stirring assembly; 21. stirring motor; 22. stirring shaft; 22a. defoaming blade; 22b. top blade; 22c. middle blade; 22d. bottom blade; 22e. bottom bearing; 3. fermentation carrier; 4. carrier frame; 5. cooling water coil; 6. air distributor. DETAILED DESCRIPTION
[0029] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and their synonyms are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0031] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.
[0032] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0033] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," "sleeved," and "fitted" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two devices, elements, or components. For another example, "fitted" can mean complete or partial contact. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0035] Example:
[0036] like Figure 1 and Figure 2 As shown, the present invention discloses a carrier fermentation tank, including a tank body 1, a stirring assembly 2, a fermentation carrier 3, a carrier frame 4, a cooling water coil 5 and an air distributor 6. The main components of the present invention will be described in detail below:
[0037] like Figure 1 and Figure 2 As shown, the tank body 1 includes a cylinder 11, and the upper and lower openings of the cylinder 11 are respectively blocked by an upper head 12 and a lower head 13, so as to facilitate the disassembly and assembly of the tank body 1 and the internal cleaning.
[0038] like Figure 1 and Figure 2As shown, the stirring assembly 2 includes a stirring motor 21 arranged at the upper end of the tank body 1, and the output end of the stirring motor 21 is connected to the stirring shaft 22 through a coupling. The stirring shaft 22 passes through the top of the tank body 1 and is arranged inside it. The stirring shaft 22 is provided with a defoaming blade 22a, a top blade 22b, a middle blade 22c and a bottom blade 22d from top to bottom. The fermentation liquid in the tank body 1 is defoamed and stirred in the upper, middle and lower areas through the layered blades to ensure the uniformity of the internal mixing. At the same time, the defoaming blade 22a is used to eliminate the foam generated in the tank.
[0039] like Figure 1 and Figure 2 As shown, the fermentation carrier 3 is arranged between the tank body 1 and the stirring assembly 2 through the carrier frame 4, the lower end of the carrier frame 4 is connected to the lower head 13, the number of fermentation carriers 3 and corresponding carrier frames 4 is five, and the fermentation carrier 3 is evenly arranged along the circumference of the stirring shaft 22 through the carrier frame 4. The carrier frame 4 is composed of multiple carrier plates arranged vertically, which can effectively avoid the loss of bacteria on the fermentation carrier 3 and improve the fermentation efficiency.
[0040] like Figure 1 and Figure 2 As shown, the cooling water coil 5 is spirally arranged on the inner and outer walls of the cylinder 11 to increase the ability to adjust the temperature inside the tank 1.
[0041] like Figure 1 and Figure 2 As shown, the air distributor 6 is arranged at the lower head 13 at the lower end of the fermentation carrier 3, so that the transported sterile air enters the tank body 1 from the lower end of the fermentation carrier 3, ensuring full contact between the bacteria on the fermentation carrier 3 and the sterile air, thereby promoting the growth of the bacteria and the accumulation of metabolites.
[0042] like Figure 1 and Figure 2 As shown, in order to ensure the reduction of energy consumption of the carrier fermentation tank, the top blade 22b and the middle blade 22c are three-pitch blade paddles. For the upper and middle layers of the tank body 1, the three-pitch blade paddles can effectively reduce energy consumption while ensuring the mixing effect.
[0043] like Figure 1 and Figure 2 As shown, in order to improve the mixing effect, the bottom blade 22d adopts a six-flat-blade turbine blade. The six-flat-blade turbine blade generates a strong shear force during the stirring process, so that the substrate and oxygen can be more effectively transferred to the bacterial cell surface.
[0044] like Figure 1 and Figure 2 As shown, in order to improve the stability of the movement of the stirring assembly 2, the lower end of the stirring shaft 22 is rotatably connected to a bottom bearing 22e, and the bottom bearing 22e is arranged at the bottom of the tank body 1. The bottom bearing 22e prevents the stirring shaft 22 from swinging during operation.
[0045] like Figure 1 and Figure 2 As shown, in order to facilitate cleaning of the tank body 1, the lower end of the carrier frame 4 is detachably connected to the lower head 13. When cleaning, the carrier frame 4 and the fermentation carrier 3 thereon can be taken out for replacement and cleaning.
[0046] like Figure 1 and Figure 2 As shown, in order to improve the convenience of using the carrier fermentation tank, the manhole 12a, the feed port 12b, the feeding port 12c, the inoculation port 12d and the exhaust port 12e are arranged at the upper head 12. Adding raw materials from the upper end is easier to mix with the internal substances, and the gas is light, and discharging it from the top can avoid the waste gas from remaining in the tank; the inner coil cooling water inlet 11a, the inner coil cooling water outlet 11b, the outer coil cooling water inlet 11c, the outer coil cooling water outlet 11d, the sampling port 11e and the electrode interface 11f are arranged at the cylinder 11, which is more conducive to temperature control and collection of standard samples; the air inlet 13a and the discharge port 13b are arranged at the lower head 13.
[0047] like Figure 1 and Figure 2 As shown, in order to ensure the stability of the carrier fermentation tank, a support 14 is provided at the lower end of the tank body 1, and the support 14 supports the four sides of the tank body to prevent the tank body 1 from tipping over.
[0048] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, 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. A carrier fermentation tank, comprising a tank body (1) and a stirring assembly (2), wherein a fermentation carrier (3) is provided in the tank body (1), characterized in that: The tank body (1) is provided with a cooling water coil (5) and an air distributor (6); the stirring assembly (2) includes a stirring motor (21) arranged at the upper end of the tank body (1), the output end of the stirring motor (21) is connected to a stirring shaft (22), the stirring shaft (22) passes through the top of the tank body (1) and is arranged inside the tank body, and the stirring shaft (22) is provided with a defoaming blade (22a), a top blade (22b), a middle blade (22c) and a bottom blade (22d) in sequence from top to bottom; the fermentation carrier (3) is arranged between the tank body (1) and the stirring assembly (2) through a carrier frame (4), the lower end of the carrier frame (4) is connected to the bottom of the tank body (1), and the air distributor (6) is arranged at the lower end of the fermentation carrier (3).
2. A carrier fermentation tank according to claim 1, characterized in that: The number of the fermentation carriers (3) and the corresponding carrier racks (4) is at least two groups, the fermentation carriers (3) are evenly arranged on the circumference of the stirring shaft (22) through the carrier racks (4), and the carrier racks (4) are composed of a plurality of carrier plates arranged vertically.
3. A carrier fermentation tank according to claim 2, characterized in that: The number of the fermentation carriers (3) and corresponding carrier racks (4) is five groups.
4. A carrier fermentation tank according to claim 3, characterized in that: The carrier frame (4) is detachably arranged in the tank body (1).
5. The carrier fermentation tank according to claim 1, characterized in that: The top blade (22b) and the middle blade (22c) are three-pitch blade blades.
6. A carrier fermentation tank according to claim 5, characterized in that: The bottom blade (22d) is a six-flat-blade turbine blade.
7. A carrier fermentation tank according to claim 6, characterized in that: The lower end of the stirring shaft (22) is rotatably connected to a bottom bearing (22e), and the bottom bearing (22e) is arranged at the bottom of the tank body (1).
8. The carrier fermentation tank according to claim 1, characterized in that: The tank body (1) comprises a cylinder (11), the upper and lower openings of the cylinder (11) are respectively sealed by an upper head (12) and a lower head (13), the cooling water coil (5) is arranged on the inner wall and the outer wall of the cylinder (11), and the air distributor (6) is arranged at the lower head (13).
9. A carrier fermentation tank according to claim 8, characterized in that: The upper seal (12) is provided with a manhole (12a), a feed port (12b), a feeding port (12c), an inoculation port (12d) and an exhaust port (12e); the cylinder (11) is provided with an inner coil cooling water inlet (11a), an inner coil cooling water outlet (11b), an outer coil cooling water inlet (11c), an outer coil cooling water outlet (11d), a sampling port (11e) and an electrode interface (11f); the lower seal (13) is provided with an air inlet (13a) and a discharge port (13b).
10. The carrier fermentation tank according to claim 1, characterized in that: A support (14) is provided at the lower end of the tank body (1).