Intelligent oxygen supply biological bacteria fermentation reaction tank

Abstract

The utility model relates to a biological bacteria fermentation reaction tank of intelligent oxygen supply, it mainly comprises a tank body, the tank body provides a closed space for biological bacteria fermentation, the tank body upper end is fixed with drive motor, and the output shaft of motor drives the rotation of stirring shaft in the tank body interior. Compared with prior art, the utility model device adds height lifting mechanism in the tank body interior, the mechanism includes the positioning ring fixed in the reactor inner wall, and the wave shape limit slot in the inboard positioning ring is inlayed with driven part. The stirring vane of the main shaft outside stirring shaft is fixedly connected with driven part and is connected with the main shaft through sliding key. The height lifting mechanism can adjust the position of stirring vane, and then promotes the rapid mixing of raw materials of different height levels. When the height of stirring vane changes, the height of surrounding raw materials will be driven to change, and the gap interlayer in the raw materials is formed, which significantly increases the contact area of raw materials and oxygen.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, and in particular to an intelligent oxygen-supplying biological fermentation reactor. Background Technology

[0002] In the field of bio-fermentation technology, bio-fermenters, as core equipment, are widely used in various industries such as beverage bioengineering, pharmaceuticals, and fine chemicals. They are key closed bioreactors for culturing microorganisms or cells. Traditional intelligent oxygen-supplying bio-fermentation reactors typically consist of a tank, a drive motor, and a stirring shaft. The tank provides the necessary closed environment for bio-fermentation, while the drive motor, mounted on the upper part of the tank, is connected to the stirring shaft via a transmission device, providing power for the shaft's rotation.

[0003] Although current bioreactors possess advantages such as simple structure, easy-to-understand basic principles, and low energy consumption, compared to traditional paddle reactors with stirred paddles, they achieve a defined flow pattern through directional gas circulation, exhibiting low shear stress and uniform energy dissipation, which is particularly important for shear-sensitive materials. Furthermore, they offer a wide range of operable gas-liquid flow rates, high gas supply efficiency, and are conducive to aerobic reactions while maintaining the suspension of solid particles. However, with industrial development and technological evolution, their limitations have become increasingly apparent, hindering further improvements in the effectiveness and efficiency of microbial fermentation.

[0004] Currently, existing bioreactors suffer from the following main drawbacks: First, they require a very large air throughput, which not only increases energy consumption and operating costs but also places higher demands on the gas supply equipment. Second, poor interphase mixing limits the contact between microorganisms and nutrients, oxygen, etc., thereby reducing reaction efficiency and adversely affecting the yield and quality of fermentation products. Third, changes in the biological circulation and operating conditions make it difficult to maintain constant substrate, nutrient, and oxygen levels, making it difficult to create a stable and suitable fermentation environment for microorganisms, thus affecting the precise control of the fermentation process. Fourth, mixing and aeration constitute a coupling problem; if aeration conditions remain unchanged, the mixing situation is difficult to improve, which limits the optimization space for mixing effects during fermentation.

[0005] To overcome the shortcomings of existing technologies, improve the efficiency and quality of microbial fermentation, and reduce energy consumption and costs, this researcher has developed a novel intelligent oxygen-supplying microbial fermentation reactor, aiming to solve problems such as low mixing efficiency and difficulties in gas supply and mixing control in current fermenters. Utility Model Content

[0006] To address the limitations of existing technologies, this invention proposes an intelligent oxygen-supplying biological fermentation reactor. This device boasts highly efficient mixing capabilities and significantly increases the contact area between raw materials and gases. This effectively overcomes the problems of low mixing efficiency and insufficient mixing with oxygen caused by the mutual compression and accumulation of raw materials in existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] This utility model relates to a stirring system with a height lifting mechanism installed inside a tank. This system can precisely control the stirring position, thereby greatly improving the mixing rate of raw materials at different height levels. Specifically, the stirring blades are connected to a driven member of the height lifting mechanism. When the driven member moves vertically in the positioning ring limiting groove, it drives the stirring blades to slide smoothly along the main shaft, completing the flexible adjustment of the height. During the height adjustment of the stirring blades, the surrounding raw materials are also raised and lowered, forming a void interlayer inside the raw materials. This not only increases the contact area between the raw materials and oxygen but also significantly improves the efficiency and quality of biological fermentation. This system effectively solves the problems of mixing efficiency and interphase mixing contact in traditional fermenters, providing a more superior environmental condition for the biological fermentation process. In addition, this system also helps to increase the yield and quality of fermentation products and has the potential advantages of reducing energy consumption and costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram showing the positional relationship between the stirring shaft and the positioning ring of this utility model.

[0012] Figure 3 This is a schematic diagram showing the relationship between the stirring blade and the positioning ring of this utility model.

[0013] Figure 4 This is a schematic diagram showing the relationship between the driven member and the positioning ring of this utility model.

[0014] Figure 5 This is a schematic diagram showing the connection relationship between the stirring blade and the driven component of this utility model.

[0015] In the diagram: 1. Tank body; 2. Drive motor; 3. Bearing; 4. Stirring shaft; 401. Main shaft; 402. Limit key; 403. Stirring blade; 404. Fitting groove; 405. Follower ring; 5. Positioning ring; 6. Driven component; 601. Positioning shaft; 602. Roller; 7. Limiting groove. Detailed Implementation

[0016] 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.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Please see Figure 1 A smart oxygen-supplying biological fermentation reactor, whose structure is consistent with existing technology devices, includes a tank body 1 and a drive motor 2 and a stirring shaft 4 mounted on the tank body 1.

[0019] In practical applications, tank 1 serves as the main container for the fermentation reaction, providing a relatively closed environment for the fermentation of microorganisms. A drive motor 2 is securely connected to the top of tank 1, providing the necessary power to rotate the stirring shaft 4. The output shaft of drive motor 2 is connected to the stirring shaft 4 via a transmission device. When drive motor 2 is started, the rotation of the output shaft drives the stirring shaft 4 to rotate inside tank 1.

[0020] It should be noted that in practical applications, the stirring shaft 4 is generally slidably connected to the tank 1 by means of the bearing 3. By fixing the inner ring of the bearing 3 to the stirring shaft 4 and the outer ring of the bearing 3 to the tank 1, the structural characteristics of the bearing 3 are utilized to achieve both a sliding connection between the stirring shaft 4 and the tank 1 and to effectively constrain the position of the stirring shaft 4.

[0021] Please see Figure 1 and Figure 2 Compared with existing technology devices, the significant difference of this device is that the tank 1 integrates a height adjustment lifting function. This function controls the position of the stirrer through the lifting component, thereby realizing convection mixing, diffusion mixing and shear mixing to optimize mixing efficiency.

[0022] Specifically, such as Figure 2 , Figure 3 and Figure 4As shown, the height lifting mechanism includes a positioning ring 5 coaxial with the tank 1. The outer end of the positioning ring 5 is fixedly connected to the inner wall of the tank 1 to ensure its stability inside the tank 1. The inner side of the positioning ring 5 is designed with a wave-shaped centerline limiting groove 7. This unique design is crucial for realizing the height lifting of the stirring blade 403.

[0023] In addition, the device has a follower 6 embedded in the limiting groove 7. The height of the limiting member is affected by the height of the limiting groove 7. That is, in actual operation, when the limiting member rotates around the central axis of the tank 1, the height of the limiting member will change periodically, which is affected by the structure of the positioning ring 5.

[0024] Furthermore, the device designs the sectional projection of the limiting groove 7 on the vertical plane as a T-shaped structure, which ensures that the driven member 6 obtains a stable limiting and guiding effect.

[0025] Correspondingly, the projection of the follower 6 on the vertical plane is also a T-shaped structure, and the larger part of the height of the follower 6 is embedded in the larger part of the height of the limiting groove 7. This matching method ensures that the follower 6 can move stably in the limiting groove 7.

[0026] For details, please refer to Figure 5 The driven member 6 is composed of a roller 602, which is embedded in the higher part of the limiting groove 7. One end of the roller 602 is close to the stirring blade 403 and is rotatably connected to it via a positioning shaft 601, which is fixed to the corresponding stirring blade 403. When the stirring shaft 4 rotates, the driven member 6 will roll within the limiting groove 7 along with the rotation of the stirring blade 403. This rolling mechanism effectively reduces the friction between the driven member 6 and the positioning ring 5, thereby extending the overall service life of the device.

[0027] Therefore, the stirring shaft 4 of this device is composed of a main shaft 401, and a plurality of stirring blades 403 are provided on the outer end of the main shaft 401. These stirring blades 403 are connected to the outer end of the main shaft 401 by sliding keys. This connection method allows the stirring blades 403 to slide on the main shaft 401 and rotate together with the main shaft 401.

[0028] Correspondingly, the inner ring of bearing 3 is fixedly connected to the outer end of spindle 401.

[0029] Meanwhile, this device ensures a fixed connection between the stirring blade 403 and the driven member 6. When the driven member 6 moves up and down within the limiting groove 7, it causes the stirring blade 403 to slide up and down on the main shaft 401 accordingly, thereby adjusting the height of the stirring blade 403.

[0030] Specifically, in order to achieve a sliding key connection between the stirring blade 403 and the main shaft 401, the device is equipped with multiple follower rings 405 on the outer end of the main shaft 401. These follower rings 405 are firmly connected to the corresponding stirring blades 403.

[0031] In addition, two stirring blades 403 are securely connected to the side of each follower ring 405. The driven parts 6 of these two stirring blades 403 always move synchronously, thus ensuring the synchronization and stability of the stirring blades 403 during lifting and lowering.

[0032] Accordingly, in order to achieve a sliding key connection between the main shaft 401 and the stirring blade 403, multiple limiting keys 402 are fixedly connected to the side end of the main shaft 401, and multiple mating grooves 404 are formed on the follower ring 405 for these limiting keys 402. The precise fit between the limiting keys 402 and the mating grooves 404 effectively prevents the circumferential rotation of the follower ring 405 on the main shaft 401, thereby ensuring that the stirring blade 403 can accurately follow the rotation and lifting of the main shaft 401.

[0033] In the practical application of this utility model:

[0034] The initiation stage of the microbial fermentation reaction involves placing the microorganisms and the raw materials required for fermentation into the fermenter. Subsequently, the drive motor 2 is started, which drives the stirring shaft 4 to rotate via a transmission device, thereby rotating the stirring blades 403 to achieve mixing and agitation of the materials within the fermenter. During the agitation process, the stirring blades 403 perform synchronized up-and-down movements due to the rolling action of the driven member 6 within the corrugated limiting groove 7. This up-and-down agitation mechanism of the stirring blades 403 ensures thorough mixing of the materials within the tank, thereby improving the uniformity of oxygen distribution during fermentation and significantly enhancing the fermentation efficiency of the microorganisms.

[0035] In summary, this invention, by designing a height-lifting mechanism, enables the stirring blade 403 to move up and down in height while rotating, effectively improving the stirring efficiency of materials in the fermentation tank and the uniformity of oxygen supply. This innovation creates more favorable environmental conditions for the fermentation process of microorganisms.

[0036] 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 claims and their equivalents.

Claims

1. A smart oxygen-supplying biological fermentation reactor, comprising a tank body (1), a drive motor (2) fixedly connected to the upper end of the tank body (1), a stirring shaft (4) being drivenly connected to the output shaft of the drive motor (2), the stirring shaft (4) being located inside the tank body (1), characterized in that, The tank (1) is equipped with a height lifting mechanism inside; The height lifting mechanism includes a positioning ring (5) coaxial with the tank (1). The outer end of the positioning ring (5) is fixedly connected to the inner wall of the tank (1). A limiting groove (7) is opened on the inner side of the positioning ring (5). A follower (6) is embedded in the limiting groove (7). The limiting groove (7) is a limiting groove with a wavy centerline. The stirring shaft (4) includes a main shaft (401), and a plurality of stirring blades (403) are provided on the outer end of the main shaft (401). The stirring blades (403) are connected to the outer end of the main shaft (401) by a sliding key, and the stirring blades (403) are fixedly connected to the driven member (6).

2. The intelligent oxygen-supplying biological fermentation reactor according to claim 1, characterized in that: The limiting groove (7) has a T-shaped projection on the vertical plane, and the follower (6) has a T-shaped projection on the vertical plane. The higher part of the follower (6) is embedded in the higher part of the limiting groove (7).

3. The intelligent oxygen-supplying biological fermentation reactor according to claim 2, characterized in that: The driven member (6) includes a roller (602), which is embedded in the higher part of the limiting groove (7). Furthermore, a positioning shaft (601) is rotatably connected to one end of the roller (602) near the stirring blade (403), and the positioning shaft (601) is fixedly connected to the corresponding stirring blade (403).

4. The intelligent oxygen-supplying biological fermentation reactor according to claim 1, characterized in that: The outer end of the main shaft (401) is equipped with multiple follower rings (405), and each follower ring (405) is fixedly connected to two stirring blades (403) on its side end. The driven members (6) corresponding to the two stirring blades (403) always maintain synchronous movement.

5. The intelligent oxygen-supplying biological fermentation reactor according to claim 4, characterized in that: The main shaft (401) is fixedly connected to a plurality of limit keys (402) on its side end, and the follower ring (405) is provided with a plurality of mating grooves (404) through the plurality of limit keys (402).

6. The intelligent oxygen-supplying biological fermentation reactor according to claim 1, characterized in that: The main shaft (401) is fixedly connected to a bearing (3) on its side end, and the main shaft (401) is rotatably connected to the tank body (1) through the bearing (3).

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