Defoaming device for biological fermentation

By designing a defoaming device for bio-fermentation, and utilizing both mechanical and chemical defoaming methods, the problem of unstable foam control was solved, achieving efficient and stable foam elimination, and improving the safety and efficiency of the fermentation process.

CN224227048UActive Publication Date: 2026-05-12HENAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN UNIVERSITY
Filing Date
2025-05-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing bio-fermentation technologies, foam control is unstable, leading to fermentation broth overflow, raw material waste, and impact on product quality. Traditional defoaming methods suffer from high energy consumption, complex equipment, or impact on the shear force of the fermentation broth.

Method used

A defoaming device for bio-fermentation was designed, comprising a sealing cap body, a connecting frame, inclined teeth, a metal mesh plate, a partition plate, and conical teeth. Combined with an electric guide rail, a drive motor, a transmission belt, and a storage tank, it achieves efficient foam elimination through both mechanical and chemical defoaming.

Benefits of technology

It achieves convenient and rapid foam elimination, improves the stability of the fermentation process and the uniform distribution of the defoamer, reduces operational complexity and energy consumption, and ensures the safety of the fermentation broth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of biological fermentation, and particularly discloses a defoaming device for biological fermentation, which comprises a sealing cover main body, a connecting frame is arranged below the sealing cover main body, and a plurality of groups of inclined teeth are fixedly connected to the bottoms of the two sides of the connecting frame; metal net plates are fixedly connected to the positions, located on the tops of the inclined teeth, of the two sides of the connecting frame. Through the arrangement of the sealing cover body, the connecting frame, the inclined teeth, the metal net plate, the partition plate and the conical teeth, in the rotating process of the connecting frame, part of foam is eliminated through the inclined teeth obliquely arranged at the bottoms of the two sides, and the foam is guided upwards through the inclined teeth in the rotating process; part of foam is eliminated again through the metal net plates on the two sides of the connecting frame, the foam which is not eliminated is guided into the connecting frame due to inertia, some small bubbles are eliminated through the conical teeth, and then the final defoaming work is completed, so that the effect of conveniently and rapidly eliminating the bubbles in the fermentation tank is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of bio-fermentation technology, specifically relating to a defoaming device for bio-fermentation. Background Technology

[0002] In the field of bio-fermentation technology, foam control and management has always been a crucial aspect. During bio-fermentation, a large amount of foam is often generated due to the metabolic activities of microorganisms, the composition of the culture medium, and operations such as stirring and aeration. This foam not only affects the stability of the fermentation process but may also cause the fermentation liquid to overflow, resulting in waste of raw materials, environmental pollution, and even affecting the quality of the final product. Therefore, developing efficient and stable defoaming devices is of great significance for the optimization and industrialization of bio-fermentation technology.

[0003] In recent years, with the rapid development of biotechnology, defoaming devices for bio-fermentation have also undergone an evolution from simple to complex and from inefficient to efficient. Traditional defoaming methods mainly include mechanical stirring, the addition of chemical defoamers, and physical methods such as ultrasound and electric fields. However, these methods all have certain limitations in practical applications. For example, although mechanical stirring can destroy foam to a certain extent, it often causes shear force on the fermentation broth, affecting the growth and metabolism of microorganisms. Physical methods, on the other hand, have disadvantages such as high energy consumption and complex equipment. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a defoaming device for biological fermentation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A defoaming device for bio-fermentation, comprising:

[0007] Sealing cap body;

[0008] A connecting frame is provided below the main body of the sealing cover;

[0009] Multiple sets of inclined teeth are fixedly connected to the bottom of both sides of the connecting frame. Metal mesh plates are fixedly connected to the top of the inclined teeth on both sides of the connecting frame. A partition plate is fixedly connected to the inner wall of the connecting frame. Multiple sets of conical teeth are fixedly connected to both sides of the partition plate, and the tips of the conical teeth are located on the back of the metal mesh plate.

[0010] Preferably, a mounting bracket is fixedly connected to the top of the sealing cover body, electric guide rails are fixedly connected to both sides of the inner wall of the mounting bracket, a sliding block is slidably connected to the inner wall of the electric guide rail, a mounting frame is fixedly connected to one side of the sliding block, and a motor box is fixedly connected to the top of the mounting frame.

[0011] Preferably, a drive motor is fixedly connected to the inner wall of the motor box, a drive rod is installed at the output end of the drive motor, a drive wheel is fixedly connected to the bottom end of the drive rod, a transmission belt is rotatably connected to the surface of the drive wheel, and a transmission wheel is rotatably connected to the inner wall of the transmission belt.

[0012] Preferably, a transmission rod is fixedly connected to the bottom of the transmission wheel, a storage tank is fixedly connected to the bottom end of the transmission rod, and the bottom of the storage tank is fixedly connected to the top of the connecting frame.

[0013] Preferably, a nozzle arranged in a ring is fixedly connected to the bottom of the storage tank, and a feed pipe is fixedly connected to the top of the storage tank.

[0014] Preferably, a protective tube is fixedly connected to the bottom of the mounting frame, and the inner wall of the protective tube is sleeved on the surface of the transmission rod.

[0015] Preferably, an injection tube is fixedly connected to the top of the sealing cap body.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) By setting up the sealing cover body, connecting frame, inclined teeth, metal mesh plate, partition plate and conical teeth, during the rotation of the connecting frame, the inclined teeth set at the bottom of both sides will eliminate some of the foam, and the inclined teeth will guide the foam upward during the rotation. The metal mesh plates on both sides of the connecting frame will eliminate some of the foam again. Due to inertia, the remaining foam will be guided into the connecting frame. The conical teeth will eliminate some of the smaller bubbles, and then the final defoaming work will be completed. This achieves the effect of conveniently and quickly eliminating the bubbles in the fermentation tank, and is easy for the staff to operate.

[0018] (2) Through the setting of electric guide rails, mounting frame, drive motor, transmission rod, storage tank and nozzle, when in use, both electric guide rails drive the sliding blocks connected to the inner wall to adjust the height. The sliding blocks drive the mounting frame on one side to adjust the height. The mounting frame drives the motor box at the top to adjust the height. The output end of the drive motor drives the drive rod to rotate. The drive rod drives the drive wheel at the bottom to rotate. The drive wheel drives the transmission belt on the surface to rotate. The transmission belt drives the transmission wheel on the inner wall to rotate. This causes the transmission wheel to drive the transmission rod at the bottom to rotate. The transmission rod drives the storage tank at the bottom to rotate. This causes the storage tank to drive the connecting frame at the bottom to rotate. This makes the connecting frame easy to defoam. The operator injects a certain amount of defoamer into the storage tank through the feed pipe. During the rotation of the storage tank, the defoamer is sprayed out through multiple sets of nozzles arranged in a ring at the bottom by inertia and gravity. This achieves the defoaming effect. It also has the dual effect of mechanical defoaming, achieving the effect of rapid defoaming. This achieves the effect of adjusting the height of the defoaming device and defoaming. It is also easy to uniformly add defoamer for dual defoaming. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a perspective view of the connecting frame of this utility model;

[0021] Figure 3 This is a perspective view of the storage tank of this utility model;

[0022] Figure 4 This is a perspective view of the drive motor of this utility model;

[0023] In the diagram: 1. Sealing cap body; 2. Connecting frame; 3. Inclined teeth; 4. Metal mesh plate; 5. Partition plate; 6. Conical teeth; 7. Mounting bracket; 8. Electric guide rail; 9. Sliding block; 10. Mounting frame; 11. Motor box; 12. Drive motor; 13. Drive rod; 14. Drive wheel; 15. Transmission belt; 16. Transmission wheel; 17. Transmission rod; 18. Storage tank; 19. Nozzle; 20. Feed pipe; 21. Protective pipe; 22. Injection pipe. Detailed Implementation

[0024] 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.

[0025] Example 1:

[0026] Please see Figures 1 to 4 As shown, a defoaming device for biological fermentation includes: a sealing cap body 1, which covers the top of the fermentation tank;

[0027] A connecting frame 2 is provided below the main body 1 of the sealing cover;

[0028] Multiple sets of inclined teeth 3 are fixedly connected to the bottom of both sides of the connecting frame 2. Metal mesh plates 4 are fixedly connected to the top of the inclined teeth 3 on both sides of the connecting frame 2. Partition plates 5 are fixedly connected to the inner wall of the connecting frame 2. Multiple sets of conical teeth 6 are fixedly connected to both sides of the partition plates 5, and the tips of the conical teeth 6 are set on the back of the metal mesh plates 4. During the rotation of the connecting frame 2, some foam is eliminated by the inclined teeth 3 at the bottom of both sides. During the rotation, the foam is guided upward by the inclined teeth 3. Some foam is eliminated again by the metal mesh plates 4 on both sides of the connecting frame 2. Due to inertia, the remaining foam is guided into the connecting frame 2. Dense conical teeth 6 are set on the inner wall of the connecting frame 2 through the partition plates 5. Some smaller bubbles are eliminated by the conical teeth 6, thus completing the final defoaming work.

[0029] Example 2:

[0030] Please see Figures 1 to 4As shown, a mounting bracket 7 is fixedly connected to the top of the sealing cover body 1. Electric guide rails 8 are fixedly connected to both sides of the inner wall of the mounting bracket 7. Sliding blocks 9 are slidably connected to the inner wall of the electric guide rails 8. A mounting frame 10 is fixedly connected to one side of the sliding block 9. A motor box 11 is fixedly connected to the top of the mounting frame 10. When the two electric guide rails 8 are simultaneously powered on, both electric guide rails 8 drive the sliding blocks 9 on their inner walls to adjust their height. The sliding blocks 9 drive the mounting frame 10 on one side to adjust its height. The mounting frame 10 then drives the motor box 11 at the top to adjust its height. A drive mechanism is fixedly connected to the inner wall of the motor box 11. Motor 12 has a drive rod 13 mounted on its output end. A drive wheel 14 is fixedly connected to the bottom end of the drive rod 13. A transmission belt 15 is rotatably connected to the surface of the drive wheel 14. A transmission wheel 16 is rotatably connected to the inner wall of the transmission belt 15. A transmission rod 17 is fixedly connected to the bottom of the transmission wheel 16. A storage tank 18 is fixedly connected to the bottom end of the transmission rod 17, and the bottom of the storage tank 18 is fixedly connected to the top of the connecting frame 2. When the operator connects the power supply to the drive motor 12, the output end of the drive motor 12 drives the drive rod 13 to rotate, which in turn drives the drive wheel 14 at its bottom end to rotate. The drive wheel 14 drives the transmission belt 15 on the surface to rotate, which in turn drives the inner wall transmission wheel 16 to rotate. This causes the transmission wheel 16 to drive the bottom transmission rod 17 to rotate, which in turn drives the storage tank 18 at the bottom to rotate. This causes the storage tank 18 to drive the bottom connecting frame 2 to rotate, facilitating defoaming of the connecting frame 2. A ring-shaped nozzle 19 is fixedly connected to the bottom of the storage tank 18, and a feed pipe 20 is fixedly connected to the top of the storage tank 18. The operator injects a fixed amount of defoamer into the storage tank 18 through the feed pipe 20. As the storage tank 18 rotates, it defoams due to inertia and gravity. The defoamer is sprayed out through multiple sets of nozzles 19 arranged in a ring at the bottom, thereby achieving the defoaming effect. It has a dual effect of mechanical defoaming, achieving a rapid defoaming effect. The bottom of the mounting frame 10 is fixedly connected to a protective tube 21, and the inner wall of the protective tube 21 is sleeved on the surface of the transmission rod 17. The inner wall of the protective tube 21 is sleeved on the surface of the transmission rod 17, so that the transmission rod 17 will not affect the surrounding personnel due to rotation while adjusting the height with the mounting frame 10. The top of the sealing cover body 1 is fixedly connected to an injection pipe 22, through which materials are added into the fermentation tank.

[0031] Example 3:

[0032] Please see Figures 1 to 4As shown, in the biopharmaceutical industry, fermenters are key equipment for producing biological products such as antibiotics and vaccines. During the fermentation process, a large amount of foam is generated due to the metabolic activities of microorganisms and the action of mechanical stirring. This foam not only reduces fermentation efficiency but may also cause fermentation liquid to overflow, leading to pollution and waste of resources. Traditional defoaming methods mainly rely on the manual addition of defoaming agents, but this method is inefficient and difficult to distribute evenly. Therefore, an efficient and automated defoaming device is needed to solve this problem.

[0033] Install the sealing cap body 1 of the defoaming device for bio-fermentation on the top of the fermenter, ensuring that the connecting frame 2 is immersed in the fermentation liquid and in contact with the foam layer. Add culture medium and inoculum to the fermenter through the injection pipe 22.

[0034] The drive motor 12 is started, which drives the transmission wheel 16 and transmission rod 17 to rotate via the drive rod 13, drive wheel 14, and transmission belt 15, thereby causing the storage tank 18 and the connecting frame 2 to rotate synchronously. As the connecting frame 2 rotates, the inclined teeth 3 at its bottom cut and guide the foam upwards, and the foam is then further broken up by the metal mesh plate 4. The remaining foam enters the interior of the connecting frame 2 under inertia and is completely eliminated by the conical teeth 6 on the partition plate 5.

[0035] Defoamer is added to storage tank 18 through feed pipe 20. As storage tank 18 rotates, defoamer is evenly sprayed onto the foam surface through annular nozzle 19, working in conjunction with mechanical defoaming to quickly eliminate foam.

[0036] Based on the height of the foam in the fermenter, the height of the sliding block 9 and the mounting frame 10 are adjusted via the electric guide rail 8, which drives the connecting frame 2 to move up and down to ensure that it is always in the optimal defoaming position.

[0037] During fermentation, monitor the foam levels in real time and add defoamer as needed. Protective tube 21 protects the transmission rod 17 to prevent rotating parts from posing a safety hazard to operators.

[0038] Working Principle: During use, the sealing cap body 1 is placed on top of the fermentation tank. The bottom of the connecting frame 2 is at the same height as the foam in the fermentation tank. During the rotation of the connecting frame 2, the inclined teeth 3 on both sides at the bottom eliminate some of the foam. During the rotation, the inclined teeth 3 guide the foam upwards, and the metal mesh plates 4 on both sides of the connecting frame 2 eliminate some more foam. Due to inertia, the remaining foam is guided into the connecting frame 2. The inner wall of the connecting frame 2 is provided with dense conical teeth 6 through the partition plate 5. The conical teeth 6 eliminate some smaller air bubbles, thus completing the final defoaming work. The two electric guide rails 8 are simultaneously connected to the power supply. Both electric guide rails 8 drive the sliding blocks 9 connected to the inner wall to adjust the height. The sliding blocks 9 drive the mounting frame 10 on one side to adjust the height. The mounting frame 10 drives the motor box 11 on the top to adjust the height. The operator connects the drive motor 12 to the power supply. The output end of the drive motor 12 drives the drive motor 12 to adjust the height. When rod 13 rotates, the drive rod 13 drives the drive wheel 14 at the bottom to rotate, the drive wheel 14 drives the transmission belt 15 on the surface to rotate, the transmission belt 15 drives the inner wall transmission wheel 16 to rotate, which in turn drives the transmission rod 17 at the bottom to rotate, and the transmission rod 17 drives the storage tank 18 at the bottom to rotate, which in turn drives the connecting frame 2 at the bottom to rotate, making the connecting frame 2 easier to defoam. The staff injects a certain amount of defoamer into the storage tank 18 through the feed pipe 20, so that when the storage tank 18 rotates, the defoamer is sprayed out through the multiple sets of nozzles 19 arranged in a ring at the bottom through inertia and gravity, thereby playing a defoaming role. It has a dual effect of mechanical defoaming, achieving a rapid defoaming effect. The inner wall of the protective pipe 21 is sleeved on the surface of the transmission rod 17, so that when the height of the transmission rod 17 is adjusted with the mounting frame 10, it will not affect the surrounding personnel due to rotation. Materials are added into the fermentation tank through the injection pipe 22.

[0039] 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 defoaming device for biological fermentation, characterized in that, include: Sealing cap body (1); A connecting frame (2) is provided below the sealing cover body (1); Multiple sets of inclined teeth (3) are fixedly connected to the bottom of both sides of the connecting frame (2). Metal mesh plates (4) are fixedly connected to the top of the inclined teeth (3) on both sides of the connecting frame (2). A partition plate (5) is fixedly connected to the inner wall of the connecting frame (2). Multiple sets of conical teeth (6) are fixedly connected to both sides of the partition plate (5), and the tips of the conical teeth (6) are located on the back of the metal mesh plate (4).

2. The defoaming device for bio-fermentation according to claim 1, characterized in that: The top of the sealing cover body (1) is fixedly connected to a mounting bracket (7), and electric guide rails (8) are fixedly connected to both sides of the inner wall of the mounting bracket (7). A sliding block (9) is slidably connected to the inner wall of the electric guide rail (8). A mounting frame (10) is fixedly connected to one side of the sliding block (9), and a motor box (11) is fixedly connected to the top of the mounting frame (10).

3. The defoaming device for bio-fermentation according to claim 2, characterized in that: A drive motor (12) is fixedly connected to the inner wall of the motor box (11). A drive rod (13) is installed at the output end of the drive motor (12). A drive wheel (14) is fixedly connected to the bottom end of the drive rod (13). A transmission belt (15) is rotatably connected to the surface of the drive wheel (14). A transmission wheel (16) is rotatably connected to the inner wall of the transmission belt (15).

4. The defoaming device for bio-fermentation according to claim 3, characterized in that: The bottom of the transmission wheel (16) is fixedly connected to a transmission rod (17), the bottom end of the transmission rod (17) is fixedly connected to a storage tank (18), and the bottom of the storage tank (18) is fixedly connected to the top of the connecting frame (2).

5. The defoaming device for bio-fermentation according to claim 4, characterized in that: The bottom of the storage tank (18) is fixedly connected to a nozzle (19) arranged in a ring, and the top of the storage tank (18) is fixedly connected to a feed pipe (20).

6. The defoaming device for bio-fermentation according to claim 2, characterized in that: The bottom of the mounting frame (10) is fixedly connected to a protective tube (21), and the inner wall of the protective tube (21) is sleeved on the surface of the transmission rod (17).

7. The defoaming device for bio-fermentation according to claim 1, characterized in that: An injection tube (22) is fixedly connected to the top of the sealing cap body (1).